Dynamic magnetic information storage or retrieval – Converting an analog signal to digital form for recording;...
Patent
1984-11-26
1986-10-07
Fears, Terrell W.
Dynamic magnetic information storage or retrieval
Converting an analog signal to digital form for recording;...
360 39, 381107, G11B 502, G11B 509
Patent
active
046162712
ABSTRACT:
A digital audio system constructed to reproduce an audio signal by separating low frequency components of a PAM (Pulse Amplitude Modulation) signal made up of pulses being produced at predetermined time intervals and representing a predetermined audio signal, the digital audio system including a pulse width control means for varying the pulse width of each of the pulses of the PAM signal in accordance with a predetermined command signal, whereby an automatic fade in and fade out operation is performed.
REFERENCES:
patent: 4032224 (1977-06-01), Wray
patent: 4051539 (1977-09-01), Geddes et al.
patent: 4406923 (1983-09-01), Burne, III et al.
patent: 4434325 (1984-02-01), Kobayashi et al.
patent: 4435833 (1984-03-01), Thakkar
Envelope Generators & Sequencers by Don Lancaster, Popular Electronics, Jan./76, pp. 58-62.
Hirano Toshio
Yasukawa Kenichiro
Yoshida Masayuki
Yoshio Junichi
Bowler Alyssa H.
Fears Terrell W.
Pioneer Electronic Corporation
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