Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1998-01-26
1999-06-22
Nguyen, Huy T.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386117, 386 67, 348159, H04N 576
Patent
active
059150645
ABSTRACT:
An apparatus for automatically recognizing recording time of a time-lapse recorder (TLV) in a closed circuit television (CCTV) system is provided. The automatic TLV-recording time recognizing apparatus includes: a buffer for restoring attenuation of a trigger pulse signal output from the TLV and removing noise of the trigger pulse signal to improve signal driving capability; a mono-stable multivibrator for detecting the trigger pulse signal from a signal output from the buffer and performing a retrigger function; a pulse cycle comparator for comparing the cycle of the trigger pulse signal output from the buffer with a predetermined reference value; and a recording mode determiner for determining the recording mode of the connection switching device corresponding to the recording time of the TLV based on the output data of the mono-stable multivibrator and the pulse cycle comparator. Therefore, each recording time in the normal and emergency states is programed in only the TLV, so that a connection switcher automatically outputs a signal corresponding to the current state of the TLV, thereby providing accuracy in the system and convenience in the use of the system.
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patent: 4633335 (1986-12-01), Yamamoto et al.
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patent: 5615017 (1997-03-01), Choi
patent: 5680499 (1997-10-01), Choi
Bushnell Esq. Robert E.
Nguyen Huy T.
Samsung Electronics Co,. Ltd.
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