Dynamic magnetic information storage or retrieval – General recording or reproducing – Recording-or erasing-prevention
Patent
1994-08-02
1995-12-12
Psitos, Aristotelis
Dynamic magnetic information storage or retrieval
General recording or reproducing
Recording-or erasing-prevention
360128, 360 61, G11B 1504, G11B 1512, G11B 510
Patent
active
054755417
ABSTRACT:
An apparatus for detecting an operation mode of a player and whether or not a tape cassette loaded into the player is recordable. The apparatus includes a cam plate having a cam groove operated to switch the player mode, a switching element, a switching arm member for operating the switching element depending on the movement of the cam groove, and a sensor lever which pivots depending on the presence of the erase-prevention tab of the tape cassette and limits the switching arm member in one direction. An extended groove is formed in the cam plate so as to detect a recording mode, and the extended groove is selectively moved by the switching arm member depending on the pivotal location of the sensor lever. That is, an operation mode of the player and an erase-prevention tab of a tape cassette can be detected by a single switching element, to thereby simplify the player structure and reduce the cost.
REFERENCES:
patent: 4106064 (1978-08-01), Hoshido
patent: 4607299 (1986-08-01), Oishi et al.
patent: 4760473 (1988-07-01), Takikawa et al.
Kim W. Chris
Psitos Aristotelis
Samsung Electronics Co,. Ltd.
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