Dynamic magnetic information storage or retrieval – Converting an analog signal to digital form for recording;...
Patent
1989-03-10
1993-02-23
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
Converting an analog signal to digital form for recording;...
360 191, G11B 509
Patent
active
051895641
ABSTRACT:
In an information recording/reproducing apparatus for recording/reproducing a digital audio signal on/from a magnetic medium, a modulator/demodulator for modulating/demodulating the digital signal by offset quadrature phrase shift keying (O-QPSK). This technique is particularly applicable to the multi-layer recording of video and audio signals in a video tape recording/reproducing system and has the advantage of avoiding interference between the recorded digital audio and video signals at the time of reproduction.
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Miura et al. IEEE Transactions on Consumer Electronics "HiFi VCR System" vol. CE-30 No. 3 Aug. 1984 pp. 360-368.
Amada Nobutaka
Arai Takao
Kimura Hiroyuki
Kobayashi Masaharu
Miura Kuniaki
Kraynak, Jr. Joseph P.
Psitos Aristotelis
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