Dynamic magnetic information storage or retrieval – Checking record characteristics or modifying recording...
Patent
1987-06-10
1989-03-07
Richardson, Robert L.
Dynamic magnetic information storage or retrieval
Checking record characteristics or modifying recording...
360 66, 360 31, 360 69, G11B 1502
Patent
active
048111228
ABSTRACT:
A magnetic recording and/or reproducing apparatus comprises a cassette discriminating circuit for discriminating whether a loaded tape cassette accommodates a standard tape or a high performance tape in a recording mode, a mode discriminating circuit for discriminating from a signal reproduced from the tape in a reproducing mode a mode with which the tape was recorded at the time of the recording, and a switching circuit for automatically switching the operation mode to a predetermined mode responsive to the discrimination made by the cassette discriminating circuit in the recording mode and responsive to the discrimination made by the mode discriminating circuit in the reproducing mode. The high performance tape is playable either in a standard mode or a high quality mode.
REFERENCES:
patent: 4484237 (1984-11-01), Muto
patent: 4554599 (1985-11-01), Shiozaki
Isobe Yutaka
Kido Koichi
Shibayama Kenji
Tsuruta Masahiko
Yamada Hiroshi
Meller Michael N.
Richardson Robert L.
Victor Company of Japan Ltd.
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