Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the record
Patent
1982-08-09
1984-09-25
Stellar, George G.
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Controlling the record
G11B 1552, G11B 2730
Patent
active
044738544
ABSTRACT:
A cassette tape recorder is provided with means for recording differently coded address signals on a magnetic recording tape and means for searching the tape for a designated address signal upon reproduction. Before recording a piece of information, an address signal selected in accordance with the kind of information to be recorded is first recorded on one recording track of the recording tape and the piece of information is recorded on the same recording track following this address signal. When the code of the address signal is designated upon reproduction, the recording tape is fed at a relatively high search speed and when one of the address signals having the designated code is picked up, the tape feeding speed is reduced to the reproducing speed to reproduce the piece of information following the address signal. When reproduction of the information is completed and the next address signal is picked up, the tape feeding speed is again changed to the search speed to locate the next address signal having the designated code. All the pieces of information of the desired kind are thus selectively reproduced. In such a cassette tape recorder, the address signal is passed through a low-pass filter when it is recorded and picked up, and the audio signal of the information is passed through a high-pass filter when it is recorded and reproduced.
REFERENCES:
patent: 3171902 (1965-03-01), Jones et al.
patent: 4316224 (1982-02-01), Hansen et al.
patent: 4344095 (1982-08-01), Furuta
patent: 4363043 (1982-12-01), Kitamura et al.
patent: 4389685 (1983-06-01), Furuta
Oishi Kengo
Suzuki Osamu
Fuji Photo Film Co. , Ltd.
Stellar George G.
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