Search method and circuit utilizing an audio signal

Details Search method and circuit utilizing an audio signal Search method and circuit utilizing an audio signal

1994-10-18

1996-01-02

Epps, Georgia Y.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the record

360 69, 360 75, 369 53, G11B 1518

Patent

active

054814162

ABSTRACT:
The present invention relates to a search method and circuit for searching specific portion of a tape, and more particularly to a search method and circuit by utilizing audio signal, wherein specific audio signal having frequency above the audio frequency is recorded on the audio track within the tape of video processing system and sound instrument and the desired position can be quickly searched by the detection of said specific audio signal during selection of search mode, thus resulting in simple circuit construction and prevention of wrong operation possibly caused by recordless portion between tunes.

REFERENCES:
patent: 4224644 (1980-09-01), Lewis et al.
patent: 4799111 (1989-01-01), Ito
patent: 5038231 (1991-08-01), Herigaya et al.
patent: 5105401 (1992-04-01), Aoyagi et al.

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