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Zenith Flash-matic
The Zenith Flash-Matic was the first wireless remote control, invented by Eugene Polley in 1955. It had only one button that was used to power on and off, channel up, channel down, and mute. The Flash-matic's phototechnology was a significant innovation in television and allowed for wireless signal transfer previously exclusive to radio. Design and production Earlier remotes could turn sets on/off and change channels, but were connected to the TV with a cable. The Flash-matic came in response to consumer complaints about the inconvenience of these cables running from the transmitter to the TV monitor. Earlier remotes served as the central control system for transmitting complex signals to the receiving monitor. The Flash-matic instead placed the complexity in the receiver as opposed to the transmitter. It used a directional beam of light to control a television outfitted with four photo cells in the corners of the screen. The light signal would activate one of the four control ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1955 Zenith Flash-Matic (cropped)
Events January * January 3 – José Ramón Guizado becomes president of Panama. * January 17 – , the first Nuclear marine propulsion, nuclear-powered submarine, puts to sea for the first time, from Groton, Connecticut. * January 18–January 20, 20 – Battle of Yijiangshan Islands: The Chinese Communist People's Liberation Army seizes the islands from the Republic of China (Taiwan). * January 22 – In the United States, The Pentagon announces a plan to develop intercontinental ballistic missiles (ICBMs), armed with nuclear weapons. * January 23 – The Sutton Coldfield rail crash kills 17, near Birmingham, England. * January 25 – The Presidium of the Supreme Soviet of the Soviet Union announces the end of the war between the USSR and Germany, which began during World War II in 1941. * January 28 – The United States Congress authorizes President Dwight D. Eisenhower to use force to protect Taiwan, Formosa from the People's Republic of China. February * February ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Control
In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as a television set, DVD player or other home appliance. A remote control can allow operation of devices that are out of convenient reach for direct operation of controls. They function best when used from a short distance. This is primarily a convenience feature for the user. In some cases, remote controls allow a person to operate a device that they otherwise would not be able to reach, as when a garage door opener is triggered from outside. Early television remote controls (1956–1977) used ultrasonic tones. Present-day remote controls are commonly consumer infrared devices which send digitally-coded pulses of infrared radiation. They control functions such as power, volume, channels, playback, track change, heat, fan speed, and vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugene Polley
Eugene Polley (November 29, 1915 – May 20, 2012) was an electrical engineer and engineering manager for Zenith Electronics who invented the first wireless remote control for television. Life and career Eugene J. Polley was born November 29, 1915, in Chicago, Illinois. He attended the City Colleges of Chicago and Armour Institute of Technology, but he left before graduating. In 1935, he was hired as a stock boy for Zenith Electronics; he moved to the company's parts department, where he created the company's first catalog, then transferred to engineering, where his assignments included work on radar during World War II for the U.S. Department of Defense. His 1955 invention, marketed as the Flash-Matic, used visible light to remotely control a television outfitted with four photocells in the cabinet at the corners of the screen. Aiming the pistol-shaped control at an individual photocell could turn the receiver on and off, mute the sound and change the channel up or down. Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photoresistor
A photoresistor (also known as a photocell, or light-dependent resistor, LDR, or photo-conductive cell) is a passive component that decreases resistance with respect to receiving luminosity (light) on the component's sensitive surface. The electrical resistance, resistance of a photoresistor decreases with increase in incident light intensity; in other words, it exhibits photoconductivity. A photoresistor can be applied in light-sensitive detector circuits and light-activated and dark-activated switching circuits acting as a resistance semiconductor. In the dark, a photoresistor can have a resistance as high as several Ohm, megaohms (MΩ), while in the light, a photoresistor can have a resistance as low as a few hundred ohms. If incident light on a photoresistor exceeds a certain frequency, photons absorbed by the semiconductor give bound electrons enough energy to jump into the conduction band. The resulting free electrons (and their electron hole, hole partners) conduct electric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Full-spectrum Light
Full-spectrum light is light that covers the electromagnetic spectrum from infrared to near-ultraviolet, or all wavelengths that are useful to plant or animal life; in particular, sunlight is considered full spectrum, even though the solar spectral distribution reaching Earth changes with time of day, latitude, and atmospheric conditions. "Full-spectrum" is not a technical term when applied to an electrical light bulb. Rather, it implies that the product emulates some important quality of natural light. Products marketed as "full-spectrum" may produce light throughout the entire visible spectrum, but without producing an even spectral distribution. Some may not differ substantially from lights not marketed as "full-spectrum". Measurement Color temperature and Color Rendering Index (CRI) are the standards for measuring light. There is no technical definition of "full-spectrum" so it cannot be measured. To compare "full-spectrum" sources requires direct comparison of spectral d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mute
Muteness is a speech disorder in which a person lacks the ability to speak. Mute or the Mute may also refer to: Arts and entertainment Film and television * ''Mute'' (2005 film), a short film by Melissa Joan Hart * ''Mute'' (2018 film), a science-fiction thriller directed by Duncan Jones * "Mute" (''The Twilight Zone''), a 1963 episode of ''The Twilight Zone'' * Mutes, anthropomorphic animals in the American animated television series ''Kipo and the Age of Wonderbeasts'' Music * Mute (music), a device used to alter the sound of a musical instrument * Left-hand muting or palm mute, guitar muting techniques * Mute Records, a record label in the United Kingdom * ''Mute'' (album), a 2000 indie rock compilation album from Hush Records * ''Muted'' (album), a 2003 album from hip hop artist Alias In print * ''Mute'' (novel), a 1981 novel by Piers Anthony * "Mute" (short story), by Stephen King * Mute, a character in ''Tom Clancy's Rainbow Six Siege'' * ''Mute'' (magazine), an on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advertising Campaign
An advertising campaign is a series of advertisement messages that share a single idea and theme which make up an integrated marketing communication (IMC). An IMC is a platform in which a group of people can group their ideas, beliefs, and concepts into one large media base. Advertising campaigns utilize diverse media channels over a particular time frame and target identified audiences. The campaign theme is the central message that will be received in the promotional activities and is the prime focus of the advertising campaign, as it sets the motif for the series of individual advertisements and other marketing communications that will be used. The campaign themes are usually produced with the objective of being used for a significant period but many of them are temporal due to factors like being not effective or market conditions, competition and marketing mix. Advertising campaigns are built to accomplish a particular objective or a set of objectives. Such objectives usua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zenith Space Commander
Robert Adler (December 4, 1913 – February 15, 2007) was an Austrian-American inventor who held numerous patents. He worked for Zenith Electronics, retiring as the company's Vice President and Director of Research. His work included developing early sound-based remote controls for televisions, which were the standard for 25 years until replaced by infrared (IR) remotes that could transmit more complex commands. Achievements Adler was born in Vienna in 1913, the son of Jenny (née Herzmark), a doctor, and Max Adler, a social theorist. He earned a Ph.D. in Physics from the University of Vienna in 1937. Following Austria's annexation by Nazi Germany in 1938, Adler, who was Jewish, left the country. He traveled first to Belgium, then to England, where he acted on the advice of friends, who recommended that he emigrate to the United States. After emigrating to the United States, he began working at Zenith Electronics in the research division in 1941. In his lifetime, Adl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE
The Institute of Electrical and Electronics Engineers (IEEE) is a 501(c)(3) professional association for electronic engineering and electrical engineering (and associated disciplines) with its corporate office in New York City and its operations center in Piscataway, New Jersey. The mission of the IEEE is ''advancing technology for the benefit of humanity''. The IEEE was formed from the amalgamation of the American Institute of Electrical Engineers and the Institute of Radio Engineers in 1963. Due to its expansion of scope into so many related fields, it is simply referred to by the letters I-E-E-E (pronounced I-triple-E), except on legal business documents. , it is the world's largest association of technical professionals with more than 423,000 members in over 160 countries around the world. Its objectives are the educational and technical advancement of electrical and electronic engineering, telecommunications, computer engineering and similar disciplines. History Origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Control
In electronics, a remote control (also known as a remote or clicker) is an electronic device used to operate another device from a distance, usually wirelessly. In consumer electronics, a remote control can be used to operate devices such as a television set, DVD player or other home appliance. A remote control can allow operation of devices that are out of convenient reach for direct operation of controls. They function best when used from a short distance. This is primarily a convenience feature for the user. In some cases, remote controls allow a person to operate a device that they otherwise would not be able to reach, as when a garage door opener is triggered from outside. Early television remote controls (1956–1977) used ultrasonic tones. Present-day remote controls are commonly consumer infrared devices which send digitally-coded pulses of infrared radiation. They control functions such as power, volume, channels, playback, track change, heat, fan speed, and vario ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Technology
Large-screen television technology (colloquially big-screen TV) developed rapidly in the late 1990s and 2000s. Prior to the development of thin-screen technologies, rear-projection television was standard for larger displays, and jumbotron, a non-projection video display technology, was used at stadiums and concerts. Various thin-screen technologies are being developed, but only liquid crystal display (LCD), plasma display (PDP) and Digital Light Processing (DLP) have been publicly released. Recent technologies like organic light-emitting diode (OLED) as well as not-yet-released technologies like surface-conduction electron-emitter display (SED) or field emission display (FED) are in development to replace earlier flat-screen technologies in picture quality. Large-screen technologies have almost completely displaced cathode-ray tubes (CRT) in television sales due to the necessary bulkiness of cathode-ray tubes. The diagonal screen size of a CRT television is limited to abou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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