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10,566 Consolidated. Parent. Alps Electric. Website. www .alpine .com. Alpine Electronics, Inc. (アルパイン株式会社, Arupain Kabushiki-gaisha) is a Japanese consumer electronics subsidiary [ 1] of the Japanese electronics component manufacturer Alps Electric, specialising in car audio and navigation systems . Established in 1967 as ...
Dirtbox (cell phone) A dirtbox (or DRT box) is a cell site simulator, a phone device mimicking a cell phone tower, that creates a signal strong enough to cause nearby dormant mobile phones to switch to it. Mounted on aircraft, it has been used by the United States Marshals Service since at least 2007 to locate and collect information from cell ...
The two head-mounted telephone receivers were called in the singular form "head telephones". [16] By 1908 the headpiece began to be written simply as "head phones", [18] and a year later the compound word "headphones" began to be used. [19] Holtzer-Cabot telephone operator head receiver, wireless operator receiver, and telephone receiver, 1909
Pioneer global network. Pioneer Corporation (パイオニア株式会社, Paionia Kabushiki-gaisha), commonly referred to as Pioneer, 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 speaker repair shop.
The first class-D amplifier was invented by British scientist Alec Reeves in the 1950s and was first called by that name in 1955. The first commercial product was a kit module called the X-10 released by Sinclair Radionics in 1964. However, it had an output power of only 2.5 watts. The Sinclair X-20 in 1966 produced 20 watts but suffered from ...
Nakamichi Corp., Ltd. (株式会社ナカミチ, Kabushiki-Gaisha Nakamichi) is a Japanese consumer electronics brand that originated in Japan and gained a name from the 1970s onwards for original and high quality audio cassette decks.
Digital audio is now common and may be transmitted via USB sound cards, USB headphones, Bluetooth, display connectors with integrated sound (e.g. DisplayPort and HDMI). Digital devices may also have internal speakers and mics. Thus the phone connector is sometimes considered redundant and a waste of space, particularly on thinner mobile devices.
More AM stations are adopting digital HD Radio, which allows the transmission of stereo sound on AM stations; HD Radio's lack of compatibility with C-QUAM along with other interference issues has hindered HD Radio's use on the AM dial. For Digital Audio Broadcasting, MP2 audio streams are used. DAB is one of the Digital Radio formats that is ...