Video tape recorder with delayed control signal recording upon r

Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording

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Details

360 142, 360 70, 360 73, H04N 5782

Patent

active

044969988

ABSTRACT:
An image recording and reproducing apparatus of the present invention has change over means between a running state and a stopped state of a recording medium, operation detecting means to detect an operation state of the change over means by a control signal synchronized either with a reference signal or a vertical synchronizing signal of an image signal, and delay means to have an output from the operation detecting means delayed for a prescribed length of time after a moment of the change over for a start of running of the recording medium or a stopping of the same thus having a running or stopping signal output therefrom. The recording of the control signal on the recording medium is stopped corresponding to the output of the operation detecting means and the output of the delay means. Further when a change over is made from a stopping mode of the recording medium to a running mode thereof after a change over is once made from the running mode to the stopping mode thereof, a recording interval of control signals corresponding to joints in a recording locus on the recording medium is made to be multiples of an integer being 2 or larger of a recording interval of control signals when the medium makes an ordinary run.

REFERENCES:
patent: 3968518 (1976-07-01), Kihara et al.
patent: 3974522 (1976-08-01), Fukatsu et al.
patent: 4190869 (1980-02-01), Ota
patent: 4246616 (1981-01-01), Hiraguri et al.
patent: 4296446 (1981-10-01), Zorbalas
patent: 4305101 (1981-12-01), Yarbrough et al.
patent: 4307417 (1981-12-01), Tokuyama et al.
patent: 4322755 (1982-03-01), Kosaka
Automatic Assembly Recording System for Helical Scan Type VTR, IEEE Transactions on Consumer Electronics, Fukushima et al., vol. CE-25, Aug. 1979, pp. 448-455.

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