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- EIAJ-1 was a standard for video tape recorders (VTRs) developed by the Electronic Industries Association of Japan with the cooperation and assistance of several Japanese electronics manufacturers in 1969. It was the first standardized format for industrial/non-broadcast VTRs using a helical scan system employing open reel tape. Previously, each manufacturer of machines in this market used a different proprietary format, with differing tape speeds, scanner drum diameters, bias frequencies, tracking head placement, and so on, although most used 1/2" wide tape. As a result, video tapes recorded on one make and/or model of VTR could only be interchanged with other machines using that specific format, hampering compatibility. For example, a reel of tape recorded on a Panasonic machine would not play on a Sony machine, and vice versa. The EIAJ-1 standard ended this incompatibility, giving those manufacturers a standardized format, interchangeable with almost all VTRs subsequently brought to market around that time. The format offered black-and-white (and later colour) video recording and playback on 1/2″ magnetic tape on a 7″ diameter open reel, with portable units using smaller 5″ diameter reels. (en)
- 統一I型（とういついちがた）は初期のビデオテープの規格である。オープンリール式で、テープ幅は1/2インチ（12.7mm）。1969年に作られた。 (ja)
- La storia della videoregistrazione registra un certo numero di formati, alcuni dei quali tecnicamente molto interessanti, che tuttavia non hanno avuto successo commerciale, in parte per l'alto costo, in parte perché non compatibili con gli standard già esistenti. (it)
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- 5384 (xsd:nonNegativeInteger)
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- Sony 1/2 inch VTR, Model A3500 (en)
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- EIAJ-1 Format Videotape (en)
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- Home movies, Industrial & educational video production (en)
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- 統一I型（とういついちがた）は初期のビデオテープの規格である。オープンリール式で、テープ幅は1/2インチ（12.7mm）。1969年に作られた。 (ja)
- La storia della videoregistrazione registra un certo numero di formati, alcuni dei quali tecnicamente molto interessanti, che tuttavia non hanno avuto successo commerciale, in parte per l'alto costo, in parte perché non compatibili con gli standard già esistenti. (it)
- EIAJ-1 was a standard for video tape recorders (VTRs) developed by the Electronic Industries Association of Japan with the cooperation and assistance of several Japanese electronics manufacturers in 1969. It was the first standardized format for industrial/non-broadcast VTRs using a helical scan system employing open reel tape. Previously, each manufacturer of machines in this market used a different proprietary format, with differing tape speeds, scanner drum diameters, bias frequencies, tracking head placement, and so on, although most used 1/2" wide tape. As a result, video tapes recorded on one make and/or model of VTR could only be interchanged with other machines using that specific format, hampering compatibility. For example, a reel of tape recorded on a Panasonic machine would not (en)
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- EIAJ-1 (en)
- Formati di videoregistrazione minori (it)
- 統一I型 (ja)
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