Method of transmitting an audio signal via a transmission channe

Details Method of transmitting an audio signal via a transmission channe Method of transmitting an audio signal via a transmission channe

1981-10-21

1983-11-08

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

In specific code or form

360 48, G11B 509

Patent

active

044145853

ABSTRACT:
A method of converting an audio signal into a binary signal and vice versa. During conversion samples of the audio signal are converted into data words comprising a plurality of amplitude bits and one sign bit. Subsequently each data word is divided into a plurality of (N) subwords, each subword comprising one of the N most significant amplitude bits of the data word. The data words thus obtained are modulated in accordance with the NRZ-M modulation. The binary signal thus obtained excells in respect of bandwidth and the possibility of clock generation during demodulation.

REFERENCES:
patent: 4041453 (1977-08-01), Umeda et al.
patent: 4143406 (1979-03-01), Tsuiki et al.
patent: 4277807 (1981-07-01), Baldwin

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