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Sony Betamax
Betamax (also known as Beta, and stylized as the Greek letter β in its logo) is a discontinued consumer analog video cassette recording format developed by Sony. It was one of the main competitors in the videotape format war against its primary rival, VHS. Betamax was introduced in Japan on May 10, 1975, and launched in the United States later that year. Betamax was widely regarded, in part due to Sony's marketing, as offering superior picture quality compared to VHS. Its initial β1 speed provided 250 horizontal lines of resolution, compared to VHS's 240 lines, but early Beta tapes were limited to 60 minutes of recording time, making them impractical for recording movies or sporting events. To address this, Sony introduced the β2 speed, which doubled recording time to two hours but reduced resolution, negating its technical advantage. VHS's commercial success over Betamax was also driven by JVC's strategy of licensing the format broadly, spurring competition and lowering p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Betacam
Betacam is a family of half-inch professional videocassette products developed by Sony in 1982. In colloquial use, ''Betacam'' singly is often used to refer to a Betacam camcorder, a Betacam tape, a Betacam video recorder or the format itself. All Betacam variants from analog Betacam, Betacam SP and Digital Betacam, HDCAM and HDCAM SR use the same shape videocassettes, meaning vaults and other storage facilities do not have to be changed when upgrading to a new format. The cassette shell and case for each Betacam cassette is colored differently depending on the format, allowing for easy visual identification. There is also a mechanical key that allows a video tape recorder to identify which format has been inserted. The cassettes are available in two sizes: S (short or small) and L (long or large). The Betacam camcorder can only load S magnetic tapes, while television studio sized video tape recorders (VTR) designed for video editing can play both S and L tapes. The format s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinitron
Trinitron was Sony's brand name for its line of aperture-grille-based CRTs used in television sets and computer monitors. It was one of the first television systems to enter the market since the 1950s. Constant improvement in the basic technology and attention to overall quality allowed Sony to charge a premium for Trinitron devices into the 1990s. Patent protection on the basic Trinitron design ran out in 1996, and it quickly faced a number of competitors at much lower prices. The name Trinitron was derived from ''trinity'', meaning the union of three, and ''tron'' from elec''tron'' tube, after the way that the Trinitron combined the three separate electron guns of other CRT designs into one. History Color television Color television had been demonstrable since the 1920s starting with John Logie Baird's system. However, it was only in the late 1940s that it was perfected by both CBS and RCA. At the time, a number of systems were being proposed that used separate red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aiwa
Aiwa (, stylised aiwa) is a Japanese consumer electronics brand of Aiwa Co. Ltd., a subsidiary of Towada Audio holdings. The current company was established in 2017 and creates mainly audio products; the brand is also licensed to or owned by other companies in different regions of the world, producing various electronics. The original Aiwa company was founded in 1951 and was one of the leading creators of audio products such as speakers, boomboxes and stereo systems. After stagnating in the latter half of the 1990s, Aiwa was merged into Sony in 2002 and then unsuccessfully relaunched as a low-cost brand until discontinuation by 2008. Aiwa was relaunched as an independent company in Japan in 2017 by Towada, two years after it was first revived by an American firm. Name and logo history In Japanese the Aiwa name is a combination of 愛 (ai) and 環 (wa), roughly meaning "circle of love". AIWA LOGO.svg, AIWA logo (1959-1991) AIWA altes logo.svg, Aiwa logo and the last of the origin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murphy Radio
Murphy Radio was a British manufacturer of radios and televisions based in Welwyn Garden City, England. Murphy Radio was founded in 1929 by Frank Murphy and E.J. Power as a volume manufacturer of home radio sets. Its factories were in the Hertfordshire town of Welwyn Garden City, England, starting with fewer than 100 employees. Murphy also had a manufacturing facility in Islandbridge, Dublin, Ireland. The company played an important role during World War II, designing and manufacturing radio sets for British Armed Forces use, chiefly the Wireless Set No. 38. After the war, Murphy used its military experience to design and build sets for Naval use, principally the 'B40' series for the Commonwealth of Nations, British Commonwealth Navies. The company also produced the Larkspur radio system, Larkspur era A41 VHF manpack transceiver for the British Army during the 1950s. Murphy himself left the company during 1937 and went on to found another company called, perhaps unwisely, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pioneer Corporation
, is a Japanese multinational corporation based in Tokyo, that specializes in digital entertainment products. The company was founded by Nozomu Matsumoto on January 1, 1938 in Tokyo as a radio and Loudspeaker, speaker repair shop. Its current president is Shiro Yahara. Pioneer played a role in the development of interactive cable TV, the Laserdisc, LaserDisc player, the first automotive compact disc, Compact Disc player, the first detachable face car stereo, Supertuner technology, DVD and DVD recording, the first AV receiver with Dolby Digital, plasma display (with the last 2 years of plasma models being branded as Pioneer Kuro, Kuro, lauded for their outstanding black levels) and organic light-emitting diode, Organic LED display (OLED). The company works with optical disc and display technology and software products and is also a manufacturer. BMW, Volkswagen Group and Daimler AG of Germany jointly acquired a 3% ownership stake in Pioneer through a joint venture company called H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toshiba
is a Japanese multinational electronics company headquartered in Minato, Tokyo. Its diversified products and services include power, industrial and social infrastructure systems, elevators and escalators, electronic components, semiconductors, hard disk drives, printers, batteries, lighting, as well as IT solutions such as quantum cryptography. It was formerly also one of the biggest manufacturers of personal computers, consumer electronics, home appliances, and medical equipment. The Toshiba name is derived from its former name, Tokyo Shibaura Denki K.K. which in turn was a 1939 merger between Shibaura Seisaku-sho (founded in 1875) and Tokyo Denki (founded in 1890). The company name was officially changed to Toshiba Corporation in 1978. A technology company with a long history and sprawling businesses, Toshiba is a household name in Japan and has long been viewed as a symbol of the country's technological prowess post-World War II. As a semiconductor company and the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sanyo
is a former Japanese electronics manufacturer founded in 1947 by Toshio Iue, the brother-in-law of Kōnosuke Matsushita, the founder of Matsushita Electric Industrial, now known as Panasonic. Iue left Matsushita Electric to start his own business, acquiring some of its equipment to produce bicycle generator lamps. In 1950, the company was established. Sanyo began to diversify in the 1960s, having launched Japan's first spray-type washing machine in 1953. In the 2000s, it was known as one of the 3S along with Sony and Sharp. Sanyo also focused on solar cell and lithium battery businesses. In 1992, it developed the world's first hybrid solar cell, and in 2002, it had a 41% share of the global lithium-ion battery market. In its heyday in 2003, Sanyo had sales of about ¥2.5 trillion. However, it fell into a financial crisis as a result of its huge investment in the semiconductor business. In 2009, Sanyo was acquired by Panasonic, and in 2011, it was fully consolidated into Pan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moviola
A Moviola () is a device that allows a Film editing, film editor to view a film while editing. It was the first machine for motion picture editing when it was invented by Iwan Serrurier in 1924. History Iwan Serrurier's original 1917 concept for the Moviola was as a home movie projector to be sold to the general public. The name was derived from the name "Victrola" since Serrurier thought his invention would do for home movie viewing what the Victrola did for home music listening. However, since the machine cost $600 in 1920 (), very few sold. An editor at Douglas Fairbanks Film Corporation, Douglas Fairbanks Studios suggested that Iwan should adapt the device for use by film editors. Serrurier did this and the Moviola as an editing device was born in 1924, with the first Moviola being sold to Douglas Fairbanks himself. Many studios quickly adopted the Moviola including Universal Pictures, Universal Studios, Warner Bros., Charles Chaplin, Charles Chaplin Studios, Buster Keaton, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta (letter)
Beta (, ; uppercase , lowercase , or cursive ; or ) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Ancient Greek, beta represented the voiced bilabial plosive . In Modern Greek, it represents the voiced bilabial fricative while in borrowed words is instead commonly transcribed as μπ. Letters that arose from beta include the Roman letter and the Cyrillic letters and . Name Like the names of most other Greek letters, the name of beta was adopted from the acrophonic name of the corresponding letter in Phoenician, which was the common Semitic word ('house', compare and ). In Greek, the name was , pronounced in Ancient Greek. It is spelled in modern monotonic orthography and pronounced . History The letter beta was derived from the Phoenician letter beth . The letter Β had the largest number of highly divergent local forms. Besides the standard form (either rounded or pointed, ), there were forms as varied ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azimuth Recording
Azimuth recording is the use of a variation in angle between two recording heads that are recording data so close together on magnetic tape that crosstalk would otherwise likely occur. Normally, the head is perpendicular to the movement of the tape, and this is considered zero degrees. However, if the heads are mounted at slightly different angles (such as ±7 degrees in VHS), destructive interference will occur at high frequencies when reading data recorded in the cross-talking channel but not in the channel that is intended to be read. At low frequencies relative to the maximum allowed by the head gap, however, this technique is ineffective. Thus one head is slanted slightly leftwards and the magnetic gap of the other head slanted slightly rightwards. To look at it another way, channel A sees the channel B data stretched out in time, hence the technique has a low-pass effect on noise intruding from another channel. Every videotape system was designed to put as much video as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
