Dynamic magnetic information storage or retrieval – Record copying
Patent
1992-08-04
1995-02-07
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Record copying
360 13, 358335, G11B 586, G11B 2702, H04N 576
Patent
active
053880080
ABSTRACT:
A device (1) for recording and playing back information signals has a connection apparatus (17) via which another such device (35) can be connected to the device (1) in order to carry out a copy operation. The other device (35) emits a control voltage U1 when a high level H with the "playback" mode of operation is switched on in the same. A copy instruction can be intentionally issued to the device (1) for example by actuating a key (46). The device (1) has a first detector (49) for detecting the control voltage U1 with a high level H emitted by the other device (35) and a second detector (50) for detecting an intentionally issued copy instruction. The "record" mode of operation is only switched on in the device (1) in order to carry out a copy operation in the event of both detectors (49, 50) being triggered simultaneously.
REFERENCES:
patent: 4167026 (1979-09-01), Sambe et al.
patent: 4628370 (1986-12-01), Fukuoka
patent: 5097461 (1992-03-01), Majima
Translation of Japanese Document, JA 02-87349, Miyamoto.
Pearson Jennifer
Sniezek Andrew L.
U.S. Philips Corporation
Weiss Richard A.
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