Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1987-09-17
1989-03-07
Wolff, John H.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
360 721, 360 7311, G11B 1548, G11B 1910
Patent
active
048111317
ABSTRACT:
An apparatus and method for scanning a moveable record medium, detecting the presence of signal information on the moveable record medium and halting the moveable record medium at the detected signal information or automatically rerecording the detected signal information. The method and apparatus is particularly adapted to function in a multichannel logging system, wherein the desired signal information is intermixed with low frequency time and information signals. The method and apparatus is capable of filtering out the low frequency signals while the tape moves at speeds between playing speed and up to 100 times playing speed, detecting if any signal information remains, and either halting the tape at the detected signal information or automatically rerecording it.
REFERENCES:
patent: 4290090 (1981-09-01), Yamamoto
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patent: 4435735 (1984-03-01), Furuta
patent: 4442464 (1984-04-01), Ito
patent: 4542427 (1983-09-01), Nagai
patent: 4570190 (1986-02-01), Kitoh
patent: 4580179 (1986-04-01), Sakaguchi et al.
Racal Recorders I.C.R. 64 Voice Communications Recorder.
Freer Raymond F.
Sander Willy M.
Dictaphone Corporation
Pitchenik David E.
Scolnick Melvin J.
Whisker Robert H.
Wolff John H.
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