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Compact Video Cassette
Compact Video Cassette (CVC) was one of the first analog recording videocassette formats to use a tape smaller than its earlier predecessors of VHS and Betamax, and was developed by Funai Electronics of Japan for portable use. The first model of VCR for the format was the Model 212, introduced in 1980 by both Funai and Technicolor as they had created a joint venture to manufacture and introduce the format to the home movie market. The system, which included the VCR and a hand held video camera, was very small and lightweight for its time. Design The CVC format used a cassette slightly larger than an audio cassette (approximately 105x66x13mm) and was loaded with 6.5mm magnetic tape. Unlike most other video cassette formats that have two spools of fixed diameter, being so small in size CVC's were designed to operate in a manner similar to a standard audio cassette: as the magnetic tape vacated one spool it would pass over the head of the player and be fed to the second spool ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video 2000
Video 2000 (also known as V2000, with the tape standard Video Compact Cassette, or VCC) is a consumer videocassette system and analogue recording standard developed by Philips and Grundig to compete with JVC's VHS and Sony's Betamax video technologies. It was designed for the PAL color television standard, but some models additionally handled SECAM. Distribution of Video 2000 products began in 1979 exclusively in Europe, South Africa and Argentina and ended in 1988. Although some initial models and advertising featured a mirror-image "VCR" badge based on the logo of Philips's earlier Video Cassette Recording (VCR) system, Video 2000 was an entirely new (and incompatible) format, which incorporated many technical innovations. Despite this, the format was not a major success and was eventually discontinued, having lost out to the rival VHS system in the videotape format war. The Video Compact Cassette Philips named the videotape standard Video Compact Cassette (VCC) t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technicolor CVC Videocassette Recorder With Monitor At DC Video
Technicolor is a series of Color motion picture film, color motion picture processes, the first version dating back to 1916, and followed by improved versions over several decades. Definitive Technicolor movies using three black and white films running through a special camera (3-strip Technicolor or Process 4) started in the early 1930s and continued through to the mid-1950s when the 3-strip camera was replaced by a standard camera loaded with single strip 'monopack' color negative film. Technicolor Laboratories were still able to produce Technicolor prints by creating three black and white matrices from the Eastmancolor negative (Process 5). Process 4 was the second major color process, after Britain's Kinemacolor (used between 1908 and 1914), and the most widely used color process in Cinema of the United States, Hollywood during the Golden Age of Hollywood. Technicolor's #Process 4: Development and introduction, three-color process became known and celebrated for its highly s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signal-to-noise
Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to the noise power, often expressed in decibels. A ratio higher than 1:1 (greater than 0 dB) indicates more signal than noise. SNR, bandwidth, and channel capacity of a communication channel are connected by the Shannon–Hartley theorem. Definition Signal-to-noise ratio is defined as the ratio of the power of a signal (meaningful input) to the power of background noise (meaningless or unwanted input): : \mathrm = \frac, where is average power. Both signal and noise power must be measured at the same or equivalent points in a system, and within the same system bandwidth. Depending on whether the signal is a constant () or a random variable (), the signal-to-noise ratio for random noise becomes: : \mathrm = \frac where E refers to the expected value, i.e. in this case th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inches Per Second
The inch per second is a unit of speed or velocity. It expresses the distance in inches (''in'') traveled or displaced, divided by time in seconds (''s'', or ''sec''). The equivalent SI unit is the metre per second. Abbreviations include in/s, in/sec, ips, and less frequently in s−1. Conversions 1 inch per second is equivalent to: : = 0.0254 metres per second (exactly) : = or 0.08 feet per second (exactly) : = or 0.056 miles per hour (exactly) : = 0.09144 km·h−1 (exactly) 1 metre per second ≈ 39.370079 inches per second (approximately) 1 foot per second = 12 inches per second (exactly) 1 mile per hour = 17.6 inches per second (exactly) 1 kilometre per hour ≈ 10.936133 inches per second (approximately) Uses In magnetic tape sound recording, magnetic tape speed is often quoted in inches per second (abbreviated "ips"). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Record Head
A recording head is the physical interface between a recording apparatus and a moving recording medium. Recording heads are generally classified according to the physical principle that allows them to impress their data upon their medium. A recording head is often mechanically paired with a playback head, which, though proximal to, is often discrete from the record head. Types The two most common forms of recording head are: * Magnetic - Magnetic recording heads use the principles of electromagnetism to coerce a paramagnetic recording medium, such as iron oxides, to orient in a readable manner such as magnetic tape. Record heads are constructed of laminated permalloy, ferrite, or sendust. As of 2006, this is the most dominant type of head in use. * Optical - Optical recording heads use the principles of optics and light to impart energy on a recording medium, which accepts the energy in a readable manner, e.g. by melting or photography. Note that Magneto-optical recording, though ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helical Scan
Helical scan is a method of recording high-frequency signals on magnetic tape. It is used in open-reel video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives. History Earl E Masterson from RCA patented the first helical scan method in 1950 after stealing it from German engineer Eduard Schüller. Eduard Schüller developed an actually working helical scan method of recording in 1953 while working at AEG. With the advent of television broadcasting in Japan in the early 1950s, they saw the need for magnetic television signal recording. Dr. Kenichi Sawazaki developed a prototype helical scan recorder in 1954. Gallery Bcn-scanner-head.jpg, Type B videotape video scanner head Vxa1-drive-nocover-nobezel-front.jpg, rotary head visible in a VXA computer tape drive Vxa1-drive-nocover-top-front.jpg, VXA tape drive, alternate view of rotary head and loading mechanism See also * Type A videotape * 1 inch type B videotape * 1 i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
TEAC Corporation
() is a Japanese electronics manufacturer. TEAC was created by the merger of the Tokyo Television Acoustic Company, founded in 1953, and the Tokyo Electro-Acoustic Company, founded in 1956. Overview TEAC has four divisions: * TASCAM - consumer to professional audio products, mostly recording *ESOTERIC - High-end consumer audio products *TEAC Consumer Electronics - Mass market audio products *Data Storage and Disk Publishing Products - Floppy drives, DVD and CD recorders and drives, MP3 players & NAS storage TEAC is known for its audio equipment, and was a primary manufacturer of high-end audio equipment in the 1970s and 1980s. During that time, TEAC produced reel-to-reel machines, cassette decks, CD players, turntables and amplifiers. TEAC produced an audio cassette with tape hubs that resembled reel-to-reel tape reels in appearance. Many manufacturers at the time used these TEAC cassettes in advertisements of their tape decks because the TEAC cassettes looked more profe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grundig
Grundig (; ) is a German consumer electronics manufacturer owned by the Turkish Arçelik A.Ş., the white goods (major appliance) manufacturer of Turkish conglomerate Koç Holding. The company made domestic appliances and personal-care products. Originally a German consumer electronic company, Grundig GmbH was founded in 1945 by Max Grundig and eventually headquartered in Nuremberg. It grew to become one of the leading radio, TV, recorder and other electronics goods manufacturers of Europe in the following decades of the 20th century. In the 1970s, Philips began acquiring Grundig AG's shares, leading to complete control in 1993. In 1998, Philips divested Grundig. In 2007, Koç Holding bought Grundig and put the brand under its home-appliances subsidiary Arcelik A.Ş. Koç is a publicly listed conglomerate with more than 80,000 employees. History Grundig began in 1945 with the establishment of a store named Fürth, Grundig & Wurzer (RVF), which sold radios and was headquar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Program
Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertising, entertainment, news, and sports. Television became available in crude experimental forms in the late 1920s, but only after several years of further development was the new technology marketed to consumers. After World War II, an improved form of black-and-white television broadcasting became popular in the United Kingdom and the United States, and television sets became commonplace in homes, businesses, and institutions. During the 1950s, television was the primary medium for influencing public opinion.Diggs-Brown, Barbara (2011''Strategic Public Relations: Audience Focused Practice''p. 48 In the mid-1960s, color broadcasting was introduced in the U.S. and most other developed countries. The availability of various types of archival storag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Tuner
A tuner is a subsystem that receives radio frequency (RF) transmissions, such as FM broadcasting, and converts the selected carrier frequency and its associated bandwidth into a fixed frequency that is suitable for further processing, usually because a lower frequency is used on the output. Broadcast FM/ AM transmissions usually feed this intermediate frequency (IF) directly into a demodulator that converts the radio signal into audio-frequency signals that can be fed into an amplifier to drive a loudspeaker. More complex transmissions like PAL/NTSC (TV), DAB (digital radio), DVB-T/ DVB-S/ DVB-C (digital TV) etc. use a wider frequency bandwidth, often with several subcarriers. These are transmitted inside the receiver as an intermediate frequency (IF). Subcarriers are then processed like real radio transmissions, but the whole bandwidth is sampled with an analog-to-digital converter (A/D) at a rate faster than the Nyquist rate (that is, at least twice the IF frequency). A t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Monitor
A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input information that is supplied has an electrical signal the display is called an ''electronic display''. Common applications for ''electronic visual displays'' are television sets or computer monitors. Types of electronic displays In use These are the technologies used to create the various displays in use today. * Liquid crystal display (LCD) ** Light-emitting diode (LED) backlit LCD ** Thin-film transistor (TFT) LCD ** Quantum dot (QLED) display * Light-emitting diode (LED) display ** OLED display ** AMOLED display ** Super AMOLED display Segment displays Some displays can show only digits or alphanumeric characters. They are called segment displays, because they are composed of several segments that switch on and off to give appearance of desired glyph. The segments are usuall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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