107 Sentences With "television receiver" | Random Sentence Generator

Lower noise can be very important when designing a radio or television receiver.

The film features actors viewing a combined radiogram television receiver made by Alba in 1948.

In 1988, Parker was inducted into the National Inventors Hall of Fame for his contributions to the television receiver.

Cartridges could contain up to 12KiB of data. Patent 4232374 titled "Segment Ordering for Television Receiver Control Unit" describes the VideoBrain display hardware.

A typical analog monochrome television receiver is based around the block diagram shown below: alt=block diagram of a television receiver showing tuner, intermediate frequency amplifier. A demodulator separates sound from video. Video is directed to the CRT and to the synchronizing circuits. The tuner is the object which "plucks" the television signals out of the air, with the aid of an antenna.

Zero reference pulse or Zero pulse is an artificially produced pulse in a professional television receiver imitating no radio frequency case for modulation index measurements in analogue TV transmitters.

PAL-S is the system of television receiver sets in the early days of the PAL system. Here PAL stands for Phase alternating at line rate and S stands for simple.

Although it can require up to 72 seconds for the device to find the proper code for a particular television receiver, the most popular televisions turn off in the first few seconds.

The deflection yoke has two sets of coils, perpendicular to each other and to the neck of the cathode ray tube. The coils are bent into a rough saddle-shape, to conform to the neck of the CRT and to provide a linear magnetic field distribution. In a color television receiver, three electron beams are all scanned in unison by the single deflection yoke. In a television receiver, the deflection coil may include ferrite segments to help direct and concentrate the magnetic field.

Watching a homemade mechanical-scan television receiver in 1928. The "televisor" (right) which produces the picture uses a spinning metal disk with a series of holes in it, called a Nipkow disk, in front of a neon lamp. Each hole in the disk passing in front of the lamp produces a scan line which makes up the image. The video signal from the television receiver unit (left) is applied to the neon lamp, causing its brightness to vary with the brightness of the image at each point.

Based on Heinzelmann success, Grundig started a factory. This allowed the company to start Grundig TV. This was created for the first German television channel which started in 1952. The company then developed a portable tape recorder and The Grundig Television Receiver 210.

The WRNY homemade television receiver consists of a modified TRF radio receiver. For WRNY, this would be an AM receiver. For other TV stations of the day, this would be a shortwave set. After the detector stage, the receiver requires a three-tube TV adapter.

In the early days of the PAL system, it was proposed that, the human eye can average the slightly different color hues in two consecutive frames and perceive the original color. The television receiver sets which rely on optical averaging were called PAL-S receivers.

Mechanical-scan systems were largely superseded by electronic-scan technology in the mid-1930s, which was used in the first commercially successful television broadcasts which began in the late 1930s in Great Britain. A mechanical television receiver is also called a televisor in some countries.

Evangelical broadcasts and daily international and local news are available in Malagasy, French, and English. Forty percent of Antananarivo residents own a television receiver. All major Malagasy newspapers are printed in the city and are widely available. Communications services in Antananarivo are the best in the country.

His hobbies were home electronics, he built his own television receiver and Hi-Fi in the 1950s, and gardening where he and Dorothy made an early attempt at self sufficiency. Skyrme died on 25 June 1987 in Selly Oak Hospital, Birmingham, of an embolism after a routine operation.

By 1925 mechanical scanning television systems were becoming available with resolutions of up to 60 scan lines. These mechanical systems were simple enough that a hobbyist could construct a television receiver. Vladimir K. Zworykin and Philo Farnsworth were developing electronic scanning systems that were the precursors of modern television.

Additions to the building were added in 1932 and 1940 made possible by Thomas Duncan, a Scottish immigrant who owned the nearby, highly successful Duncan Electric Company. Purdue ECE played an important role in the early TV technology with Professor Roscoe George's many inventions including the first all-electronic television receiver.

In spite of Trinitron and Chromatron having no technology in common, the shared single electron gun has led to many erroneous claims that the two are very similar, or the same."Sony Trinitron color television receiver, c 1970" is a common publication claiming that Trinitron and Chromatron are the same.

A microstrip antenna array for a satellite television receiver. Diagram of the feed structure of a microstrip antenna array. In telecommunication, a microstrip antenna (also known as a printed antenna) usually means an antenna fabricated using photolithographic techniques on a printed circuit board (PCB). It is a kind of internal antenna.

The service could be received by equipment having a built-in card slot: a DVB-T set-top box, a recorder or an integrated television receiver. As of July 2013, there were approximately 200,000 subscribers. At the end of 2013, Top Up TV ceased broadcasting and sold its subscriber business to Sky.

Normally the two officers must be accompanied by a Police Officer'. The warrant provides an authorisation to search a premises, and to examine and test any television receiver found. However, there is no power to seize any apparatus. According to the BBC Search Warrant Policy "force must not be used by TV Licensing to gain entry to a property".

The variable resistors (R6 and R7) controlled the motor speed. The switch would boost the speed of the disk to synchronize it with the camera. Complete television receiver connected to an ordinary radio With homemade sets, maintaining synchronization is a major concern. A homemade receiver with a fan ("universal") motor requires the viewer to manually sync the picture.

The chrominance subcarrier is a separate subcarrier signal that carries the color information during transmission of a composite video signal. It is modulated and synchronized using the colorburst signal and then attached to the back porch of the signal. By synchronizing the subcarrier with the local oscillator of the television receiver, the RGB colors can be decoded successfully.

Total sales in 1968 were $44.5 million. By end of the decade, Electrohome was the second largest employer in the Kitchener-Waterloo area, and colour television was the company's largest single product line. In fact, Electrohome engineered, designed, and manufactured the only Canadian colour television receiver. He was also the founder of several media outlets in Kitchener, including CKKW, CFCA and CKCO.

Louis W. Parker (nee Lazlo Kolozsy 1 January 1906 — 21 June 1993) was a Hungarian-American inventor. During his career, Parker created over two hundred inventions including an audio-video synchronizer built for television and an oxygen level monitor for the Apollo program. For his contributions to the television receiver, Parker was inducted into the National Inventors Hall of Fame in 1988.

Television in Germany began in Berlin on 22 March 1935, broadcasting for 90 minutes three times a week. It was the first public television station in the world, named Fernsehsender Paul Nipkow. The German television market had approximately 36.5 million television households in 2000, making it the largest television market in Europe. Nowadays, 95% of German households have at least one television receiver.

This had originally been a television receiver designed by Pye Ltd. to pick up BBC transmissions on 45 MHz. It was adapted to the MK. IV's ~200 MHz by using it as the intermediate frequency stage of a superheterodyne system. To do this, they had added another tube that stepped down the frequency from the radar's 193 MHz to 45 MHz.

Several years later, a color model with an active-matrix LCD was released. Some smartphones integrate a television receiver, although Internet broadband video is far more common. Since the switch-over to digital broadcasting, handheld TVs have reduced in size and improved in quality. Portable TV was eventually brought to digital TV with DVB-H, although it didn't see much success.

Philco built many iconic radios and television sets, including the classic cathedral-shaped wooden radio of the 1930s (aka the "Baby Grand"), and the Predicta series of television receiver sets of the 1950s. Philo Farnsworth, credited for inventing the first fully functional all electronic vacuum tube television system (patent # US1773980- filed Jan 7, 1927), worked at Philco from 1931 to 1933.

A Viewsat Xtreme FTA receiver A free-to-air or FTA Receiver is a satellite television receiver designed to receive unencrypted broadcasts. Modern decoders are typically compliant with the MPEG-2/DVB-S and more recently the MPEG-4/DVB-S2 standard for digital television, while older FTA receivers relied on analog satellite transmissions which have declined rapidly in recent years.

A pink elastomeric connector mating an LCD panel to circuit board traces, shown next to a centimeter-scale ruler. The conductive and insulating layers in the black stripe are very small. Click on the image for more detail. A standard television receiver screen, a modern LCD panel, has over six million pixels, and they are all individually powered by a wire network embedded in the screen.

The licence fee was charged on a per household basis; therefore, addresses with more than one television receiver generally only required a single licence. An exception was made if the household includes persons living at home who no longer was provided for by the parents, e.g. students living at home. If people not in parental care own a separate television they had to pay the normal fee.

As discussed previously, antennas may be placed indoors where signals are strong enough to overcome antenna shortcomings. The antenna is simply plugged into the television receiver and placed conveniently, often on the top of the receiver ("set- top"). Sometimes the position needs to be experimented with to get the best picture. Indoor antennas can also benefit from RF amplification, commonly called a TV booster.

Both patents had been purchased by RCA prior to their approval. Charge storage remains a basic principle in the design of imaging devices for television to the present day. On December 25, 1926, Kenjiro Takayanagi demonstrated a TV system with a 40-line resolution that employed a CRT display at Hamamatsu Industrial High School in Japan. This was the first working example of a fully electronic television receiver.

He and his staff were responsible for many early technical innovations, including the first consumer all-electronic television receiver in 1938. Their most revolutionary contribution came when the team successfully extended the life of a cathode ray tube from 24 to 1000 hours, making television sets a practical product for consumers. The company's television receivers soon became the gold standard of the industry.Dean, L. DuMont TV — KTTV TV11 .

Special techniques had to be devised to show the action movements on a three inch television screen. One was where the likeness of a character was shown to the audience instead of the real person. The facial movements of this figure were then presented in sync with the sound of the spoken parts. This sound part came from a separate radio receiver, that was placed under the television receiver.

One example of this operation is selecting a channel on a television receiver. With only one RF signal that passes through the electric filter, only the one corresponding video signal is received, with no interference from the other RF signals. For the coded RF signals, a light sensor is utilized. Generally, a light sensor is a device that detects changes of light in quantities and provides a corresponding output.

An external video monitor (or modified television receiver) could be connected to the IBM 5100 via a BNC connector on the back panel. While the 5100 had a front panel switch to select between white on black or black on white for the internal display, this switch did not affect the external monitor, which only offered bright characters on a black background. The vertical scan rate was fixed at 60 Hz.

By the end of the meeting the next day, Morita had secured a license to produce "a Chromatron tube and color television receiver utilizing it."Sony, p. 43 In early 1963 Senri Miyaoka was sent to the Chromatic labs to arrange the transfer of the technology to Sony, which would lead to the closing of Chromatic. He was unimpressed with the labs, describing the windowless basement as "squalor".

This was the first working example of a fully electronic television receiver. His research toward creating a production model was halted by the US after Japan lost World War II. A television testing laboratory The first commercially made electronic televisions with cathode ray tubes were manufactured by Telefunken in Germany in 1934,Telefunken, Early Electronic TV Gallery, Early Television Foundation.1934–35 Telefunken, Television History: The First 75 Years.

By the mid-1960s, RCA were using MOSFETs in their consumer television products. RCA Laboratories researchers W.M. Austin, J.A. Dean, D.M. Griswold and O.P. Hart in 1966 described the use of the MOSFET in television circuits, including RF amplifier, low-level video, chroma and AGC circuits. The power MOSFET was later widely adopted for television receiver circuits. In 1972, sales of color sets finally surpassed sales of black-and-white sets.

The cell array includes cells in a window formation: One or more cells above, below and on each side of the subject. The television receiver would use the output of the photoelectric cell to drive a neon lamp. When the photoelectric cell was detecting a bright spot, the neon lamp would be bright. The receiver also had a scanning disk with the same hole-pattern as the camera and it spun at the same speed.

It is possible to also get a bad picture if the signal strength of the TV transmitter is too high. An attenuator inserted in the antenna lead-in wire may be used if the television receiver displays signs of overload in the RF front end. Strong out-of-band signals may also affect television reception and may require band-pass filters to reduce the level of the undesired signal at the receiver.

By 1952, only the five-inch guns remained aboard. The number of crewmen berthed aboard Béarn fluctuated, but it averaged about 800 men, which taxed the ship's cooking and sanitation facilities. In 1955, she became the first ship in the to be fitted with a television receiver. The GASM was disbanded on 10 October 1960 and the ship was relegated to service as a barracks ship, although she retained her torpedo workshop.

Upon reception at the other end, the balun takes the difference of the two signals, thus removing any noise picked up along the way and recreating the unbalanced signal. A once common application of a radio frequency balun was found at the antenna terminals of a television receiver. Typically a 300-ohm balanced twin lead antenna input could only be connected to a coaxial cable from a cable TV system through a balun.

ASTEC UM 1286 UHF modulator, top cover taken off An RF modulator (or radio frequency modulator) is an electronic device whose input is a baseband signal which is used to modulate a radio frequency source. RF modulators are used to convert signals from devices such as media players, VCRs and game consoles to a format that can be handled by a device designed to receive a modulated RF input, such as a radio or television receiver.

During the 1930s and 1940s, field- sequential color systems were developed which used synchronized motor-driven color-filter disks at the camera's image tube and at the television receiver. Each disk consisted of red, blue, and green transparent color filters. In the camera, the disk was in the optical path, and in the receiver, it was in front of the CRT. Disk rotation was synchronized with vertical scanning so that each vertical scan in sequence was for a different primary color.

Early satellite television receiver systems were largely constructed by hobbyists and engineers. These early TVRO systems operated mainly on the C-band frequencies and the dishes required were large; typically over 3 meters (10 ft) in diameter. Consequently, TVRO is often referred to as "big dish" or "Big Ugly Dish" (BUD) satellite television. TVRO systems were designed to receive analog and digital satellite feeds of both television or audio from both C-band and Ku-band transponders on FSS-type satellites.

Coax cable is often used to carry data/signals from an antenna to a receiver—from a satellite dish to a satellite receiver, from a television antenna to a television receiver, from a radio mast to a radio receiver, etc. In many cases, the same single coax cable carries power in the opposite direction, to the antenna, to power the low-noise amplifier. In some cases a single coax cable carries (unidirectional) power and bidirectional data/signals, as in DiSEqC.

The boundaries of each band vary somewhat in different countries. Radio waves in these bands travel by line-of-sight; they are blocked by hills and the visual horizon, limiting a television station's reception area to , depending on terrain. In the previous standard analog television, used before 2006, the VHF and UHF bands required separate tuners in the television receiver, which had separate antenna inputs. The wavelength of a radio wave equals the speed of light (c) divided by the frequency.

Nevertheless, the Berlin station, along with one in occupied Paris (Fernsehsender Paris), remained on the air for most of World War II. A special magazine called Fernsehen und Tonfilm (i.e. Television and Sound film) was published. Television receiver showing a football broadcast in a military hospital in 1942. In 1941 Kurt Wagenführ established the "Institute for Broadcasting Studies and Television" ("Institut für Rundfunkkunde und Fernsehrundfunk") at the University of Berlin with support from the Reich Ministry of Public Enlightenment and Propaganda.

Pictures by Wire, The Evening Star, (Saturday, 16 October, 1896), p.3. Ernst Ruhmer demonstrating his experimental television system, which was capable of transmitting images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)"Another Electric Distance-Seer", Literary Digest, September 11, 1909, page 384. The first demonstration of the instantaneous transmission of images was made by a German physicist, Ernst Ruhmer, who arranged 25 selenium cells as the picture elements for a television receiver.

The Early Television Museum is a museum of early television receiver sets. It is located in Hilliard, a suburb of Columbus, Ohio, USA. The museum has over 150 TV sets including mechanical TVs from the 1920s and 1930s; pre-World War II British sets from 1936–39; pre-war American sets from 1939–41; post-war American, British, French and German sets from 1945–60; and early color sets from 1953-57 including an RCA Victor CT-100. Many of these sets are working.

In late 1970, Muntz closed his Stereo-Pak audio business after a fire severely damaged his main offices. He then entered the growing home-video market. During the mid-1970s, Muntz thought of taking a Sony color cathode ray tube (CRT) television receiver, fitting it with a special lens and reflecting mirror, then projecting the magnified image onto a larger screen. He housed these primitive units in a large wooden console, making it one of the first successful widescreen projection TV receivers marketed for home use.

The original Freeview service allowed a large number of digital television channels to be received on a compatible television receiver, set-top box, or personal video recorder. An electronic programme guide was available. Freeview channels are not encrypted and can be received by anyone in the UK. There is no additional charge to receive Freeview but it is a legal obligation to hold a current television licence to watch or record TV as it is being broadcast. A subscription-based DTT service, Top Up TV, launched in March 2004.

In 1991, the BBC assumed the role of TV Licensing Authority with responsibility for the collection and enforcement of the licence fee. The BBC is authorised by the Communications Act 2003 to collect and enforce the TV licence fee. Section 363 of the Act makes it against the law to install or use a television receiver to watch or record any television programmes as they are being broadcast without a TV Licence. Section 365 of the same Act requires the payment of the TV licence fee to the BBC.

The licence fee is formally set by the Secretary of State for Culture, Media and Sport by the use of statutory instruments. The relevant statutory instruments are the Communications (Television Licensing) Regulations 2004 and amendments since that time such as the Communications (Television Licensing) (Amendment) Regulations 2010. As well as prescribing the fees, the regulations also define "television receiver" for the purposes of the law. For people living in the Channel Islands and Isle of Man, TV licensing law is extended to their areas by Orders in Council made by agreement with their own governments.

On August 12, 1928, the television equipment was moved from Pilot's Brooklyn laboratory to the WRNY transmitter house at Coytesville, NJ. A television receiver was set up a quarter of a mile away. The first subject televised was John Geloso's wife. The test ran from 5:43 PM to 6:30 with John Geloso and WRNY station engineer, John Maresca, also taking turns in front of the camera. A second test was conducted at 11 PM. The New York Times reported this successful test and said the regularly scheduled broadcast would start on August 13.

As a result of further expansion, the company moved to larger premises at Erskine Road, Chalk Farm, NW3 in 1932; three years later, a new factory at Western Avenue, Acton."Vintage Technology: Ultra Electric." vintage-technology.info. During the 1930s, Ultra manufactured a wide range of domestic radio receivers including the Blue Fox, Lynx, Panther and Tiger models. In 1939, the company presented a television receiver to the market for the BBC High Definition Television Service which was transmitted on 405 lines from the studios at Alexandra Palace, north London.

The passive elements function as reflecting and directing structures in the same way that mirrors and focusing lenses function in compound lenses. For example, in a rooftop Yagi-Uda television antenna, the feed consists of a dipole driven element, which converts the radio waves to an electric current, and a coaxial cable or twin lead transmission line which conducts the received signal from the driven element into the house to the television receiver. The rest of the antenna consists of rods called parasitic elements, which strengthen reception from a given direction.

A Winegard 68 element VHF/UHF aerial antenna. This common multi-band antenna type uses a UHF Yagi at the front and a VHF log-periodic at the back coupled together. A television antenna (TV aerial) is an antenna specifically designed for use with a television receiver (TV) to receive over-the-air broadcast television signals from a television station. Terrestrial television is broadcast on frequencies from about 47 to 250 MHz in the very high frequency (VHF) band, and 470 to 960 MHz in the ultra high frequency (UHF) band in different countries.

Pouliot was born on June 6, 1923 in Quebec City to mathematician Adrien Pouliot and Laure Clark. Pouliot studied at Université Laval, graduating in 1945 with a degree in electrical engineering, specializing in electronics. He subsequently served as the superintendent of the Canadian Navy Laboratories until 1952. Prime Minister Louis St.-Laurent, impressed on hearing from his son that Pouliot had built Ottawa's only television receiver, recommended to the president of Famous Players Canadian Corporation that Pouliot be enlisted to aid the company in launching television stations in Canada.

By making use of certificates issued by a trusted certification authority, a secure authenticated channel (SAC) is formed between a CI+ CAM and television receiver (Host). This SAC is used to generate a shared key, unique per a CAM-Host pair, which protects from unauthorized copying the content marked in the associated URI (Usage Rules Info) as a content which needs to be re-encrypted on its way from CAM to Host after removal the original CA or DRM scrambling (in the original CI standard, decrypted content could be sent over the PCMCIA interface only in unscrambled form).

In the December 9, 1966 The Green Hornet episode "The Secret Of The Sally Bell" the Batmobile is seen on a television receiver, turning around inside the Batcave. In the February 3, 1967 Green Hornet episode "Ace in the Hole," which was transmitted in between the September 1966 and March 1967 Batman appearances (mentioned above), an unidentified episode of Batman is seen playing on a television set, showing Batman and Robin climbing a building. One other appearance of The Green Hornet, Kato, and Batman was broadcast in Autumn 1966 on a Milton Berle Hollywood Palace television variety show.

They worked poorly with weaker signals, as most of the components that Muntz had removed were intended to boost performance in fringe areas. This was a calculated decision: Muntz preferred to leave the low-volume, high-performance television receiver market to firms such as RCA and Zenith Electronics, as his intended customers were primarily urban dwellers with limited funds. Additionally, many urban apartment buildings had rules prohibiting external television antennas, and installation of an antenna, even if allowed, cost as much as $150. Muntz solved this problem by adding a built-in antenna to his receivers.

This was the first working example of a fully electronic television receiver. Takayanagi did not apply for a patent. On 7 September 1927, American inventor Philo Farnsworth's image dissector camera tube transmitted its first image, a simple straight line, at his laboratory at 202 Green Street in San Francisco.Postman, Neil, "Philo Farnsworth", The TIME 100: Scientists & Thinkers, Time, 1999-03-29. Retrieved 28 July 2009."Philo Taylor Farnsworth (1906–1971)" , The Virtual Museum of the City of San Francisco. Retrieved 15 July 2009. By 3 September 1928, Farnsworth had developed the system sufficiently to hold a demonstration for the press.

CI+ (also known as CI Plus or Common Interface Plus) is a specification that extends the original DVB Common Interface standard (DVB-CI, sometimes referred to as DVB-CIv1). The main addition introduced by CI+ is a form of copy protection between a CI+ conditional-access module (referenced by the spec as CICAM, while CI+ CAM seems to be a more precise abbreviation) and the television receiver (Host). CI+ is backward compatible with DVB-CIv1. Old television receivers, which have CIv1 CI-slot, can be used with CI+ CAM and vice versa, but for viewing only those of TV programs which are not marked as CI+ protected.

In the box at the focus of the dish, called a low-noise block downconverter (LNB), each block of frequencies is converted to the IF range of 950 - 2150 MHz by two fixed frequency local oscillators at 9.75 and 10.6 GHz. One of the two blocks is selected by a control signal from the set top box inside, which switches on one of the local oscillators. This IF is carried into the building to the television receiver on a coaxial cable. At the cable company's set top box, the signal is converted to a lower IF of 480 MHz for filtering, by a variable frequency oscillator.

The signal is then passed through a coaxial cable into the residence to the satellite television receiver, a set-top box next to the television. The reason for using the LNB to do the frequency translation at the dish is so that the signal can be carried into the residence using cheap coaxial cable. To transport the signal into the house at its original Ku band microwave frequency would require an expensive waveguide, a metal pipe to carry the radio waves. The cable connecting the receiver to the LNB are of the low loss type RG-6, quad shield RG-6, or RG-11.

Following the Second World War, HMCS Star returned to a peacetime footing, reactivating in October 1946 as a reserve division. In June 1949, a party of sailors from the unit made a visit to former RCN corvettes being readied to be scrapped at Hamilton's steel mills. Their visit was to salvage whatever material would be of instructional value to the Division and to bring back memories to those that served on the ships during the war. In the same month the wardroom at Star was the first wardroom in the Royal Canadian Navy to be fitted with a television receiver, with programs coming in from as far as Buffalo, New York.

Zenith is, perhaps, best known for the first practical wireless television remote control, the Space Command, developed in 1956. A Zenith Space Command 600 remote control. A box advertising a remote control system often referred to as "Space Command Tuning" The original television remote control was a wired version, released in 1950, that soon attracted complaints about an unsightly length of cable from the viewer's chair to the television receiver. Eugene F. McDonald, Zenith President and founder, ordered his engineers to develop a wireless version, but the use of radio waves was soon discounted due to poor interference rejection inherent in 1950s radio receivers.

The major problem faced by the Airborne Group was the problem of wavelength. For a variety of reasons, an antenna with reasonable gain has to be on the same order of length as the wavelength of the signal, with the half-wave dipole being a common solution. CH worked at wavelengths on the order of 10 metres, which called for antennas about long, far too large to be practically carried on an aircraft. Through 1936 the team's primary concern was the development of radio systems operating at much shorter wavelengths, eventually settling on a set working at 6.7 m, based on an experimental television receiver built at EMI.

The music video, directed by the duo of Kevin Godley and Lol Creme and featuring robot-like movable sculptures (by Jim Whiting) dancing, spinning, and even walking in time to the music in a "virtual house" in London, England, garnered five MTV Video Music Awards in 1984, including Best Concept Video and Best Special Effects. Hancock himself appears, and plays keyboard, only as an image on a television receiver, which is smashed on the pavement outside the front door of the house at the end of the video. The video also won two Billboard Video Music Awards, one for most innovative video, and another for best art direction.

They were particularly interested in moving to much shorter wavelengths as a way to detect smaller objects, especially the conning towers and periscopes of U-boats. The Air Ministry's Airborne Group, led by Edward George Bowen, had the opposite problem of desiring antennas small enough to mount in the nose of a twin- engine aircraft. They had managed to adapt an experimental television receiver to 1.5 m, but this still required large antennas that had to be mounted on the wings. At a meeting between Bowen and the Admiralty Experimental Department's Charles Wright, they found many reasons to agree on the need for a 10 cm wavelength system.

This high frequency, high voltage signal creates electromagnetic radiation that has, according to Van Eck, "a remarkable resemblance to a broadcast TV signal". The signal leaks out from displays and may be captured by an antenna, and once synchronization pulses are recreated and mixed in, an ordinary analog television receiver can display the result. The synchronization pulses can be recreated either through manual adjustment or by processing the signals emitted by electromagnetic coils as they deflect the CRT's electron beam back and forth. In the paper, Van Eck reports that in February 1985 a successful test of this concept was carried out with the cooperation of the BBC.

The Mk. IV was used in the front lines for only a short period. The introduction of the cavity magnetron in 1940 led to rapid progress in microwave-frequency radars, which offered far greater accuracy and were effective at low altitudes. The prototype Mk. VII began to replace the Mk. IV at the end of 1941, and the AI Mk. VIII largely relegated the Mk. IV to second-line duties by 1943. The Mk. IV's receiver, originally a television receiver, was used as the basis of the ASV Mk. II radar, Chain Home Low, AMES Type 7, and many other radar systems throughout the war.

Some types of connectors are used by multiple hardware interfaces; for example, RCA connectors are defined both by the composite video and component video interfaces, but DVI is the only interface that uses the DVI connector. This means that in some cases not all components with physically compatible connectors will actually work together. Some of these connectors, and other types of connectors, are also used at radio frequency (RF) to connect a radio or television receiver to an antenna or to a cable system; RF connector applications are not further described here. Analog A/V connectors often use shielded cables to inhibit radio frequency interference (RFI) and noise.

A television set, also called a television receiver, television, TV set, TV, or telly, is a device that combines a tuner, display, and speakers for the purpose of viewing television. Introduced in the late 1920s in mechanical form, television sets became a popular consumer product after World War II in electronic form, using cathode ray tubes. The addition of color to broadcast television after 1953 further increased the popularity of television sets in the 1960s, and an outdoor antenna became a common feature of suburban homes. The ubiquitous television set became the display device for the first recorded media in the 1970s, such as VHS and later DVD, as well as for early home computers and videogame consoles.

The idea of transmitting a color television signal with distinct luma and chrominance components originated with Georges Valensi, who patented the idea in 1938.French patent 841335, issued Feb. 6, 1939; cited in U.S. Patent 2375966 "System of Television in Colors", issued May 15, 1945. Valensi's patent application described: > The use of two channels, one transmitting the predominating color (signal > T), and the other the mean brilliance (signal t) output from a single > television transmitter to be received not only by color television receivers > provided with the necessary more expensive equipment, but also by the > ordinary type of television receiver which is more numerous and less > expensive and which reproduces the pictures in black and white only.

In the early 1980s, "intelligent" television receivers were introduced in Japan. The addition of an LSI chip with memory and a character generator to a television receiver enabled Japanese viewers to receive a mix of programming and information transmitted over spare lines of the broadcast television signal.Gene Gregory (1985), Japanese Electronics Technology, Enterprise and Innovation, page 351, Japan Times A patent was filed in 1994 (and extended the following year) for an "intelligent" television system, linked with data processing systems, by means of a digital or analog network. Apart from being linked to data networks, one key point is its ability to automatically download necessary software routines, according to a user's demand, and process their needs.

From the early 1930s Bruch was involved in the development of television technology: in 1933 he presented a "people's television receiver" with a self-built telecine. In 1935 he started work as a technician in the Television and Physics research Department of Telefunken which was headed by Professor and where developed a special television camera for the 1936 Summer Olympics. The Summer Olympic Games of 1936 in Berlin became a milestone for audiovisual technology and Bruch was able to field test the first Iconoscope camera, developed by Emil Mechau based on a tube by . One year later, at the Paris International Exposition, he introduced an iconoscope television unit that he had designed.

The commercials were so memorable that HBO's news parody series Not Necessarily the News created a parody television commercial featuring a caricature of Oliver North (from the infamous Iran–Contra affair), known as "Crazy Ollie", selling used weapons at bargain prices. An early Eddie's commercial parody appeared on NBC's Saturday Night Live on January 22, 1977 in the Dan Aykroyd creation, "Crazy Ernie". Carroll and the commercials became significantly cultural during the 1980s, with the commercials sometimes appearing in the background of contemporary motion pictures. An example is the frightening first sight of a television receiver with a typical Jerry Carroll commercial on screen by Daryl Hannah's mermaid character in Ron Howard's 1984 comedy Splash.

A rented property in multiple occupation by a joint tenancy agreement is considered by TV Licensing as one household and requires only one licence, but a rented property with multiple, separate tenancy agreements is not considered a single household and each tenant may require a separate licence.Do I need a licence if I live in a shared house and it's not my TV?, TV Licensing, 2011 For example, a house in multiple occupation may have private bedrooms and shared communal areas: if five occupants share such a property with individual tenancy agreements then they may require up to five television licences if each private room contains a television receiver, while a similar property housing five occupants under a joint tenancy agreement may require only one television licence.

Under Swedish law, from 1956 until 2019, everyone who owned a television receiver was required to pay the license fee; the last figure was 2400 SEK per annum for the year 2018. The fee was collected by Radiotjänst but administered by the Swedish National Debt Office (Riksgäldskontoret) by means of a special account, the so-called “rundradiokontot”.Radiotjänst website Computer owners 'have to pay TV tax' , The Local, July 13, 2006 This fee previously applied to any household with a TV-receiver; even if the device was not used to view television. Even if a household had no way to receive a TV broadcast, but owned a device which could theoretically receive a signal (if said signal was present) it was still required to pay the fee.

SCART (also known as or , especially in France, 21-pin EuroSCART in marketing by Sharp in Asia, Euroconector in Spain, EuroAV or EXT, or EIA Multiport in the United States, as an EIA interface) is a French-originated standard and associated 21-pin connector for connecting audio-visual (AV) equipment. The name SCART comes from , "Radio and Television Receiver Manufacturers' Association", the French organisation that created the connector in the mid-1970s. The related European standard EN 50049 has been then refined and published in 1978 by CENELEC, calling it peritelevision, but it is commonly called by the abbreviation péritel in French. The signals carried by SCART include both composite and RGB (with composite synchronisation) video, stereo audio input/output and digital signalling.

Channels were presented in fixed sequence, with no means to skip channels unused in a particular area. When UHF TV broadcasting was made available, often two complete separate tuner stages were used, with separate tuning knobs for selection of VHF band and UHF band channels. To allow for a small amount of drift or misalignment of the tuner with the actual transmitted frequency, tuners of that era included a "fine tuning" knob to allow minor adjustment for best reception. The combination of high frequencies, multiple electrical contacts, and frequent changing of channels in the tuner made it a high maintenance part of the television receiver, as relatively small electrical or mechanical problems with the tuner would make the set unusable.

Nipkow's 'disc' from the patent application of 1884 A television receiver using a Nipkow disk in the Tekniska museet, Stockholm While still a student he conceived an "electric telescope", mainly known for the idea of using a spiral-perforated disk (Nipkow disk), to divide a picture into a linear sequence of points. Accounts of its invention state that the idea came to him while sitting alone at home with an oil lamp on Christmas Eve, 1883. Alexander Bain had transmitted images telegraphically in the 1840s but the Nipkow disk improved the encoding process. He applied to the imperial patent office in Berlin for a patent covering an "electric telescope" for the "electric reproduction of illuminating objects", in the category "electric apparatuses".

Analog television receivers and composite monitors often provide manual controls to adjust horizontal and vertical timing. The sweep (or deflection) oscillators were designed to run without a signal from the television station (or VCR, computer, or other composite video source). This provides a blank canvas, similar to today's "CHECK SIGNAL CABLE" messages on monitors: it allows the television receiver to display a raster to confirm basic operation of the set's most fundamental circuits, and to allow an image to be presented during antenna placement. With sufficient signal strength, the receiver's sync separator circuit would split timebase pulses from the incoming video and use them to reset the horizontal and vertical oscillators at the appropriate time to synchronize with the signal from the station.

The free-running oscillation of the horizontal circuit is especially critical, as the horizontal deflection circuits typically power the flyback transformer (which provides acceleration potential for the CRT) as well as the filaments for the high voltage rectifier tube and sometimes the filament(s) of the CRT itself. Without the operation of the horizontal oscillator and output stages, for virtually every analog television receiver since the 1940s, there will be absolutely no illumination of the CRT's face. The lack of precision timing components in early television receivers meant that the timebase circuits occasionally needed manual adjustment. If their free-run frequencies were too far from the actual line and field rates, the circuits would not be able to follow the incoming sync signals.

The pulse sequence is designed to allow horizontal sync to continue during vertical retrace; it also indicates whether each field represents even or odd lines in interlaced systems (depending on whether it begins at the start of a horizontal line, or midway through). In the television receiver, a sync separator circuit detects the sync voltage levels and sorts the pulses into horizontal and vertical sync. Loss of horizontal synchronization usually resulted in an unwatchable picture; loss of vertical synchronization would produce an image rolling up or down the screen. Counting sync pulses, a video line selector picks a selected line from a TV signal, used for teletext, on-screen displays, station identification logos as well as in the industry when cameras were used as a sensor.

Aspel played "Rocky" Mountain, a Canadian. By the early sixties, he had become one of four regular newsreaders on BBC national television, along with Richard Baker, Robert Dougall and Corbet Woodall. At the BBC he began presenting a number of other programmes such as the series Come Dancing, Crackerjack, Ask Aspel, and the Miss World beauty contest, which he covered 14 times. He narrated the BREMA cartoon documentary, The Colour Television Receiver (aka Degaussing or The Colour Receiver Installation Film), which was shown every day (except Sunday) on BBC2 between 14 October 1967 and 8 January 1971. He also provided narration for the BBC nuclear war drama documentary The War Game, which won the Best Documentary Feature Oscar in 1966, but was not shown on British television until 1985.

Since the resonant frequency of a SAW device is set by the mechanical properties of the crystal, it does not drift as much as a simple LC oscillator, where conditions such as capacitor performance and battery voltage will vary substantially with temperature and age. SAW filters are also often used in radio receivers, as they can have precisely determined and narrow passbands. This is helpful in applications where a single antenna must be shared between a transmitter and a receiver operating at closely spaced frequencies. SAW filters are also frequently used in television receivers, for extracting subcarriers from the signal; until the analog switchoff, the extraction of digital audio subcarriers from the intermediate frequency strip of a television receiver or video recorder was one of the main markets for SAW filters.

RCA 630-TS, the first mass-produced television set, which sold in 1946–1947 A television set, also called a television receiver, television, TV set, TV, or "telly", is a device that combines a tuner, display, an amplifier, and speakers for the purpose of viewing television and hearing its audio components. Introduced in the late 1920s in mechanical form, television sets became a popular consumer product after World War II in electronic form, using cathode ray tubes. The addition of color to broadcast television after 1953 further increased the popularity of television sets and an outdoor antenna became a common feature of suburban homes. The ubiquitous television set became the display device for recorded media in the 1970s, such as Betamax and VHS, which enabled viewers to record TV shows and watch prerecorded movies.

Dimensia was RCA's brand name for their high-end models of television systems and their components (Tuner, VCR, CD Player, etc.) produced from 1984 to 1989, with variations continuing into the early 1990s, superseded by the ProScan model line. After RCA was acquired by General Electric in 1986, GE sold the RCA consumer electronics line to Thomson SA which continued the Dimensia line. They are significant for their wide array of advanced features and for being the first television receiver systems to feature a built in computer, somewhat of an early incarnation of a smart TV, but without internet access (see Technological convergence). In 1985, RCA released the Digital Command Component System, a fully integrated audio system that permitted the full functionality of Dimensia audio components without a Dimensia monitor.

Many viewers find that when they acquire a digital television or set-top box they are unable to view closed caption (CC) information, even though the broadcaster is sending it and the TV is able to display it. Originally, CC information was included in the picture ("line 21") via a composite video input, but there is no equivalent capability in digital video interconnects (such as DVI and HDMI) between the display and a "source". A "source", in this case, can be a DVD player or a terrestrial or cable digital television receiver. When CC information is encoded in the MPEG-2 data stream, only the device that decodes the MPEG-2 data (a source) has access to the closed caption information; there is no standard for transmitting the CC information to a display monitor separately.

Ruhmer demonstrating his experimental television system, which was capable of transmitting images of simple shapes over telephone lines, using a 25-element selenium cell receiver (1909)"Another Electric Distance-Seer", Literary Digest, September 11, 1909, page 385. Ruhmer also researched using selenium cells as the picture elements for a television receiver. In late 1909 he successfully demonstrated in Belgium the transmission of simple images over a telephone wire from the Palace of Justice at Brussels to the city of Liege, a distance of 115 kilometers (72 miles). This demonstration was described at the time as "the world's first working model of television apparatus"."Seeing by Wire", Industrial World, January 31, 1910, pages viii-x (reprinted from the London Mail). However, his device consisted of only 25 cells, thus was only capable of representing simple geometric shapes.

We see in the movie that even toy guns are prohibited on the station, and that the communications port in an apartment is used for both the television receiver and the telephone — Frank has to mute the television to answer the phone next to it. The operating room in the hospital has support staff standing on the ceiling to aid the doctors. Very shortly after this American- produced movie was produced, and 34 days before it was broadcast, the United Nations, with a membership in which the majority of nations now recognized Communist China, voted October 25 to expel the representatives of the Taiwan- based Republic of China (an original member since 1945) and admit the Beijing- based representatives of the People's Republic of China (founded 1949) in its place. Thus, the movie was outdated when it was broadcast.

Home made television On July 4, 1928, The New York Times reported that in the past two weeks WRNY has received more than 2000 letters requesting more information about the television broadcast. Hugo Gernsback said "The letters have come alike from radio listeners, wireless experimenters and home set builders who wish construction details about the apparatus required to intercept the television broadcast." Television on the shortwave bands could be received in New York City in early 1928 and Experimenter Publishing's magazines had been printing detailed descriptions of television receivers since 1927. The specialized parts to build a television were available that August. A New Jersey radio supply company, Daven, sold a complete television receiver kit for $100; the scanning disk was $10 and the neon bulb was $11.50. The September issue was on the newsstand on August 10, 1928.

Stanley was fascinated by the new technology and on his instructions the company built a high gain receiver that could pick up these transmissions. In 1937, a five-inch Pye television receiver was priced at 21 guineas (£22.05) and within two years the company had sold 2,000 sets at an average price of £34 (). The new EF50 valve from Philips enabled Pye to build this high-gain receiver, which was a Tuned Radio Frequency (TRF) type and not a superhet type. With the outbreak of World War II, the Pye receiver using EF50 valves became a key component of many radar receivers, forming the 45 MHz Intermediate Amplifier (IF) section of the equipment. Pye went on to design and manufacture radio equipment for the British Army, including Wireless Sets No. 10, 18, 19, 22, 62 and 68.

In 1925, he demonstrated a CRT television with thermal electron emission. In 1926, he demonstrated a CRT television with 40-line resolution,Kenjiro Takayanagi: The Father of Japanese Television, NHK (Japan Broadcasting Corporation), 2002, retrieved 2009-05-23. the first working example of a fully electronic television receiver. In 1927, he increased the television resolution to 100 lines, which was unrivaled until 1931.High Above: The untold story of Astra, Europe's leading satellite company, page 220, Springer Science+Business Media In 1928, he was the first to transmit human faces in half-tones on television, influencing the later work of Vladimir K. Zworykin.Albert Abramson, Zworykin, Pioneer of Television, University of Illinois Press, 1995, p. 231. . On March 25, 1925, Scottish inventor John Logie Baird publicly demonstrated the transmission of moving silhouette pictures at the London department store Selfridge's.

Additionally, magnetic deflection can be arranged to give a larger angle of deflection than electrostatic plates; this makes the CRT and resulting television receiver more compact. The angle of magnetic deflection, for a given deflection current, is inversely proportional to the square root of the CRT accelerating voltage, but in electrostatic deflection, the angle is inversely proportional to the accelerating voltage (for a particular value of deflection plate voltage). This has the practical effect that high accelerating voltages can be used without greatly increasing the power of the deflection amplifiers. Donald G. Fink (ed), Electronic Engineer's Handbook, McGraw Hill, 1975, , pages 11–40 through 11–44 While a magnetic deflection yoke can be used to provide a random-access vector display image, the high inductance of the yoke windings requires powerful amplifiers that may be expensive to produce with high bandwidth.

Digital must-carry (also incorrectly called "dual must-carry") is the requirement that cable companies carry either the analog (over a hybrid analog/digital cable system) or digital (over a digital-only pay television system like AT&T; U-verse or Verizon FiOS) signal. They must still meet the every-subscriber/television receiver laws, i.e. "Pursuant to Section 614(b)(7) and 615(h), the operator of a cable system is required to ensure that signals carried in fulfillment of the must-carry requirements are provided to EVERY subscriber of the system", of local stations. This has been opposed by numerous cable networks, which might be bumped off of digital cable were this to happen, and promoted by television stations and the National Association of Broadcasters, whom it would benefit by passing their high definition or digital multicast signals through to their cable viewers.

Prior to the introduction of specialised video connector standards such as SCART, TVs were designed to only accept signals through the aerial connector: signals originate at a TV station, are transmitted over the air, and are then received by an antenna and demodulated within the TV. When equipment was developed which could use a television receiver as its display device, such as VCRs, DVD players, early home computers, and video game consoles, the signal was modulated and sent to the RF input connector. The aerial connector is standard on all TV sets, even very old ones. Since later television designs include composite, S-Video, and component video jacks, which skip the modulation and demodulation steps, modulators are no longer included as standard equipment, and RF modulators are now largely a third-party product, purchased primarily to run newer equipment such as DVD players with an old television set.

DTV Innovations is a US-based, privately held company that develops software and hardware which enable television broadcasters to deliver programming reliably to their viewers, specifically through inclusion of data conforming to Program and System Information Protocol (PSIP), mandated by the FCC. PSIP data, as defined by the American Television Standards Committee (ATSC) Standard A/65, is a collection of tables and information designed to operate within every digital broadcast transport stream and includes critical data which describes the information at the system and event levels for all virtual channels carried within a broadcaster’s transport stream. Without this PSIP data, broadcast programming cannot be received or viewed by any television receiver. Additionally, PSIP is the basis for the Electronic Program Guide which is displayed on all ATSC-compatible digital TV receivers and used by viewers to review information regarding the program and make selections for viewing and recording.

This naturally causes an increase in the speed of image movement and raises the frequency of sound reproduction by approximately 4 per cent. (this results in the pitch of musical notes rising by something less than a semi-tone and is acceptable to all but the most critical ear). Five types of film image are acceptable for television transmission: (1) conventional motion picture camera negatives, (2) conventional motion picture laboratory positive prints derived from (1), (3) telerecordings made by filming a cathode-ray tube display to produce a negative image, (4) telerecordings as in (3) but arranged to produce a direct positive image on the original telerecording camera film, (5) motion picture laboratory prints made from (3). Gamma-control amplifiers in television transmission equipment are capable of inverting the phase or contrast relationship of the signal—in practice this means that an incoming negative image can be electronically converted eventually to appear as a positive image displayed by the television receiver.

Allen Balcom DuMont, also spelled Du Mont, (January 29, 1901 – November 14, 1965) was an American electronics engineer, scientist and inventor best known for improvements to the cathode ray tube in 1931 for use in television receivers. Seven years later he manufactured and sold the first commercially practical television set to the public. In June 1938, his Model 180 television receiver was the first all-electronic television set ever sold to the public, a few months prior to RCA's first set in April 1939. In 1946, DuMont founded the first television network to be licensed, the DuMont Television Network, initially by linking station WABD (named for DuMont; it later became WNEW and is now WNYW) in New York City to station W3XWT, which later became WTTG, in Washington, D.C. (WTTG was named for Dr. Thomas T. Goldsmith, DuMont's Vice President of Research, and his best friend.) DuMont's successes in television picture tubes, TV sets and components and his involvement in commercial TV broadcasting made him the first millionaire in the business.