Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1981-09-03
1985-01-29
Cardillo, Jr., Raymond F.
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
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.
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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.
Canon Kabushiki Kaisha
Cardillo, Jr. Raymond F.
Garland Steven R.
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