Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1991-01-24
1994-09-27
Sniezek, Andrew L.
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
360 103, 360 191, 358343, H04N 578
Patent
active
053511549
ABSTRACT:
A magnetic recording and reproducing apparatus wherein a moving picture signal and an audio signal following the moving picture are recorded and reproduced on a first area in a recording track inclined with respect to a traveling direction of a magnetic tape and digital data indicating a one-cut frame or a field) still picture signal is recorded and reproduced on a second area in the recording track. The apparatus includes a circuit for detecting that digital data indicating the still picture is reproduced by an amount of data corresponding to the one-cut still picture, a switch which is operated by a person who monitors pictures and used to instruct restart of the magnetic tape, and a logic circuit. The logic circuit generates an instruction for switching the reproduced signal output from the moving picture to the still picture on the basis of the output of the detection circuit, and instruction for rewinding the magnetic tape to a position near the recording start position of the digital data indicating the still picture and for stopping the magnetic tape thereat, and instruction for switching the reproducing signal output from the still picture to the moving picture signal when the switch is operated, and an instruction for causing the magnetic tape to travel once again at the normal traveling speed for reproducing a moving picture signal.
REFERENCES:
patent: 4604668 (1986-08-01), Lemelson
patent: 4858032 (1989-08-01), Okada et al.
Aizawa Iwao
Yoshioka Atsushi
Hitachi , Ltd.
Sniezek Andrew L.
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