Dynamic magnetic information storage or retrieval – Miscellaneous
Patent
1983-05-19
1986-05-13
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Miscellaneous
360 90, G11B 1500
Patent
active
045890455
ABSTRACT:
A state indicator device in a recording and/or reproducing apparatus comprises a circuit for generating a mute control signal which causes muting of a recording signal until the traveling speed of the tape reaches a predetermined tape travel speed for recording the signal, a logic circuit supplied with a tape traveling signal, a recording mode signal, and the mute control signal, for producing a first driving signal for causing continuous emission of light when the recording mode signal exists and the mute control signal is in a signal state for muting the recording signal and producing a second driving signal in accordance with the tape traveling signal when the recording mode signal exists and the mute control signal is in a signal state for cancelling the muting of the recording signal, and a single indicator element for continuously emitting light in response to the first driving signal and blinking in response to the second driving signal.
REFERENCES:
patent: 4003093 (1977-01-01), Satoh
patent: 4331307 (1982-05-01), Furuta
patent: 4340951 (1982-07-01), Motoyama et al.
Heinz A. J.
Meller Michael N.
Urcia Benjamin E.
Victor Company of Japan Ltd.
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