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Nakamichi
is a Japanese consumer electronics brand that originated in Japan and gained a name from the 1970s onwards for innovative and high quality audio cassette decks. Nakamichi is a subsidiary of Chinese holding company Nimble Holdings. Nakamichi manufactured electronic devices from its founding in 1948 but only sold them under its name from 1972. It is credited with offering the world's first three-head cassette deck. Since 1999, its product range has included design-oriented home cinema audio systems, sound bars, speakers, headphones, mini hi-fi systems, automotive stereo products and video DVD products. Background Etsuro Nakamichi founded Nakamichi in 1948 as Nakamichi Research Corporation Ltd (中道研究所株式会社 ''Nakamichi Kenkyujo Kabushiki Kaisha'') in Tokyo, Japan. It specialises in manufacturing portable radios, tonearms, speakers, and communications equipment. It was later headed by the founder's younger brother Niro Nakamichi. The company was originally estab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Etsuro Nakamichi
was a Japanese engineer and founder of Nakamichi Corporation, a high-end audio electronics company based in Tokyo in Japan. The company is most famous for its very high quality sounding cassette decks. Nakamichi's life Etsuro Nakamichi founded Nakamichi Research in 1948. The brother of Niro Nakamichi, he was an acoustic engineering officer in the Imperial Japanese Navy doing sonar research. After the war, he started Nakamichi Research by researching in electromagnetism, magnetic recording, acoustics and communications. The company he founded initially designed and developed portable radios, tone arms, speakers and communications equipment. With the development of magnetic tape in 1951, Nakamichi felt his company could develop and refine the technology of recording heads. Within a few years his company developed an open-reel tape recorder, and in 1957 the Japanese public was introduced to an open reel recorder under the FIDELA brand name. The company he founded subsequently we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassette Deck
A cassette deck is a type of tape machine for playing and recording audio cassettes that does not have a built-in power amplifier or speakers, and serves primarily as a transport. It can be a part of an automotive entertainment system, a part of a portable mini system or a part of a home component system. In the latter case it is also called a component cassette deck or just a component deck. A "tape recorder" is a more generic term to identify a device that usually has a self-contained power amplifier and either has a built-in speaker or comes packaged with one. History Origins The first consumer tape recorder to employ a tape reel permanently housed in a small removable cartridge was the RCA tape cartridge, which appeared in 1958 as a predecessor to the cassette format. At that time, reel to reel recorders and players were commonly used by enthusiasts, but required large individual reels and tapes which had to be threaded by hand, making them less-accessible to the cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grande Holdings
Grande Holdings Ltd () () is a Chinese manufacturer of consumer and professional audio and HiFi components based in Kowloon, Hong Kong. In the past, Grande Holdings has purchased several Japanese HiFi manufacturers, including Akai and Nakamichi. It also owns Kawa, a Chinese domestic hifi company, and has owned Singer Corporation, a company best known for its sewing machines. The company has since sold off Singer as a brand. History The company was founded by James Ting, a Chinese businessman originally from Shanghai, Christopher Ho, and Stanley Ho (), Macau's richest and most famous entrepreneurs. In 1999 prior to the collapse of International Semi Tech Microsystems, Grande Holdings acquired Singer, Pfaff, Akai and Sansui Electric assets. Singer and Pfaff were later sold off to SVP Worldwide. Controversy In 1999 during the Asian Financial Crisis the company courted controversy when one of its main subsidiaries in Hong Kong, Akai Holdings Ltd, fell apart after recording a $1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolby Noise Reduction System
A Dolby noise-reduction system, or Dolby NR, is one of a series of noise reduction systems developed by Dolby Laboratories for use in analog audio tape recording. The first was '' Dolby A'', a professional broadband noise reduction system for recording studios in 1965, but the best-known is '' Dolby B'' (introduced in 1968), a sliding band system for the consumer market, which helped make high fidelity practical on cassette tapes, which used a relatively noisy tape size and speed. It is common on high-fidelity stereo tape players and recorders to the present day, although Dolby has as of 2016 ceased licensing the technology for new cassette decks. Of the noise reduction systems, ''Dolby A'' and '' Dolby SR'' were developed for professional use. ''Dolby B'', '' C'', and '' S'' were designed for the consumer market. Aside from Dolby HX, all the Dolby variants work by companding: compressing the dynamic range of the sound during recording, and ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flutter (electronics And Communication)
In electronics and communication, flutter is the rapid variation of signal parameters, such as amplitude, phase, and frequency. Examples of electronic flutter are: *Rapid variations in received signal levels, such as variations that may be caused by atmospheric disturbances, antenna movements in a high wind, or interaction with other signals. *In radio propagation, a phenomenon in which nearly all radio signals that are usually reflected by ionospheric layers in or above the E-region experience partial or complete absorption. *In radio transmission, rapidly changing signal levels, together with variable multipath time delays, caused by reflection and possible partial absorption of the signal by aircraft flying through the radio beam or common scatter volume. *The variation in the transmission characteristics of a loaded telephone line caused by the action of telegraph direct currents on the loading coils. *In recording and reproducing equipment, the deviation of frequency cause ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wow (recording)
Wow is a relatively slow form of flutter (pitch variation) that can affect gramophone records and tape recorders. For both, the collective expression wow and flutter is commonly used. Gramophone records When playing gramophone records, wow is a once-per-revolution pitch variation which could result from warping of the record or from a pressing plate that was not precisely centered. If the grooves are not centered exactly relative to the spindle hole, the linear velocity of the stylus, instead of dropping gradually as the groove spirals towards the center, varies every revolution to be too high (resulting in a higher pitch) when the stylus is further out, and too low when the stylus is further inwards (resulting in a lower pitch). The more eccentric the positioning, the greater the pitch variation. The cause for "wow"-effects on a warped disc is basically the same; a variation in the linear velocity of the stylus relative to the disc. This can be by either radial warping (simil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reel-to-reel
Reel-to-reel audio tape recording, also called open-reel recording, is magnetic tape audio recording in which the recording tape is spooled between reels. To prepare for use, the ''supply reel'' (or ''feed reel'') containing the tape is placed on a spindle or hub. The end of the tape is manually pulled from the reel, threaded through mechanical guides and over a tape head assembly, and attached by friction to the hub of the second, initially empty ''takeup reel''. Reel-to-reel systems use tape that is wide, which normally moves at . All standard tape speeds are derived as a binary submultiple of 30 inches per second. Reel-to-reel preceded the development of the compact cassette with tape wide moving at . By writing the same audio signal across more tape, reel-to-reel systems give much greater fidelity at the cost of much larger tapes. In spite of the relative inconvenience and generally more expensive media, reel-to-reel systems developed in the early 1940s remained pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorola
Motorola, Inc. () was an American multinational telecommunications company based in Schaumburg, Illinois, United States. After having lost $4.3 billion from 2007 to 2009, the company split into two independent public companies, Motorola Mobility and Motorola Solutions on January 4, 2011. Motorola Solutions is the legal successor to Motorola, Inc., as the reorganization was structured with Motorola Mobility being spun off. Motorola Mobility was acquired by Lenovo in 2014. Motorola designed and sold wireless network equipment such as cellular transmission base stations and signal amplifiers. Motorola's home and broadcast network products included set-top boxes, digital video recorders, and network equipment used to enable video broadcasting, computer telephony, and high-definition television. Its business and government customers consisted mainly of wireless voice and broadband systems (used to build private networks), and, public safety communications systems like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tape Recorder
An audio tape recorder, also known as a tape deck, tape player or tape machine or simply a tape recorder, is a sound recording and reproduction device that records and plays back sounds usually using magnetic tape for storage. In its present-day form, it records a fluctuating signal by moving the tape across a tape head that polarizes the magnetic domains in the tape in proportion to the audio signal. Tape-recording devices include the reel-to-reel tape deck and the cassette deck, which uses a cassette for storage. The use of magnetic tape for sound recording originated around 1930 in Germany as paper tape with oxide lacquered to it. Prior to the development of magnetic tape, magnetic wire recorders had successfully demonstrated the concept of magnetic recording, but they never offered audio quality comparable to the other recording and broadcast standards of the time. This German invention was the start of a long string of innovations that have led to present-day magneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampex
Ampex is an American electronics company founded in 1944 by Alexander M. Poniatoff as a spin-off of Dalmo-Victor. The name AMPEX is a portmanteau, created by its founder, which stands for Alexander M. Poniatoff Excellence.AbramsoThe History of television, 1942 to 2000– McFarland, 2003 – , page 286, Chapter 2, footnote 34 "1944 he founded Ampex (the name was created from his initials, AMP, plus "ex" for excellence)" Today, Ampex operates as Ampex Data Systems Corporation, a subsidiary of Delta Information Systems, and consists of two business units. The Silicon Valley unit, known internally as Ampex Data Systems (ADS), manufactures digital data storage systems capable of functioning in harsh environments. The Colorado Springs, Colorado unit, referred to as Ampex Intelligent Systems (AIS), serves as a laboratory and hub for the company's line of industrial control systems, cyber security products and services and its artificial intelligence/ machine learning technology. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvania Electric Products
Sylvania Electric Products Inc. was an American manufacturer of diverse electrical equipment, including at various times radio transceivers, vacuum tubes, semiconductors, and mainframe computers such as MOBIDIC. They were one of the companies involved in the development of the COBOL programming language. History The ''Hygrade Sylvania Corporation'' was formed when '' NILCO'', ''Sylvania'' and '' Hygrade Lamp Company'' merged into one company in 1931. In 1939, Hygrade Sylvania started preliminary research on fluorescent technology, and later that year, demonstrated the first linear, or tubular, fluorescent lamp. It was featured at the 1939 New York World's Fair. Sylvania was also a manufacturer of both vacuum tubes and transistors. In 1942, the company changed its name to Sylvania Electric Products Inc. During World War II, Sylvania was chosen from among several competing companies to manufacture the miniature vacuum tubes used in proximity fuze shells due to its quality ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fisher Electronics
Fisher Electronics was an American company specialising in the field of hi-fi electronics. The company and the name was bought by Japanese electronics conglomerate Sanyo in 1975. History Fisher Electronics was an American audio equipment manufacturer founded in 1945 by Avery Fisher in New York City, New York. Originally named the Fisher Radio Corporation, the company is considered a pioneer in high fidelity audio equipment. Fisher initially developed, manufactured and marketed high-performance audio products under the trade name " The Fisher". In February 1969, Emerson Electric announced plans to purchase Fisher Radio. To purchase Fisher, Emerson initially agreed to exchange 736,000 shares in a transaction worth approximately $75 million. Emerson later agreed to pay approximately $37 million in stock to acquire Fisher. The purchase was completed later that year. Emerson subsequently sold Fisher to Sanyo Electric of Japan in 1975. In 2000, Fisher's entire product lineup was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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