Dynamic magnetic information storage or retrieval – Monitoring or testing the progress of recording
Patent
1982-05-26
1985-03-26
McElheny, Jr., Donald
Dynamic magnetic information storage or retrieval
Monitoring or testing the progress of recording
358906, 360 143, H04N 578
Patent
active
045076901
ABSTRACT:
A device for controlling consecutive recording of video information containing signals, on a magnetic recording medium in a magnetic recording and reproducing apparatus, fed from a video camera with variable time spacing. The device comprises a control switch rendered non-conductive or conductive when a pause switch in the magnetic recording and reproducing apparatus is actuated or released, and a member for initializing a sync signal generator in the video camera with a signal produced in synchronism with the rotation of a head carrying disc driving motor of the magnetic recording and reproducing apparatus, whereby energy consumption is lowered and synchronization between successive video information signals is attained rapidly during the consecutive recording of video information signals from the video camera.
REFERENCES:
patent: 3974522 (1976-08-01), Fukatsu et al.
patent: 4007490 (1977-02-01), Shoda
patent: 4340903 (1982-07-01), Tamura
patent: 4358797 (1982-11-01), Nishijima et al.
patent: 4386376 (1983-05-01), Takimoto et al.
Azuma Nobuo
Furuhata Takashi
Mohri Katsuo
Satoh Kenji
Hitachi , Ltd.
McElheny Jr. Donald
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