Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-10-06
1997-06-24
Chin, Tommy P.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386108, 386 96, 360 18, H04N 979, H04N 591
Patent
active
056424574
ABSTRACT:
A helical scan type magnetic recording and reproducing apparatus records/reproduces a video signal and a audio signal on/from tracks formed on a magnetic tape obliquely with respect to a longitudinal direction of a magnetic tape wound on a rotary drum. When a multiplexed signal containing a frequency modulated luminance signal and a low frequency converted chrominance signal and a frequency modulated audio signal which are related to an analog video signal are recorded/reproduced, the rotary drum is rotated in synchronism with a frame pulse of the analog video signal. When a digital video signal is recorded/reproduced, the rotary drum is rotated at a speed 1.25 times that when an analog video signal of the NTSC system is recorded/reproduced and at a speed 1.5 times that when an analog video signal of the PAL or SECAM system is recorded/reproduced.
REFERENCES:
patent: 4963991 (1990-10-01), Honjo
patent: 5128775 (1992-07-01), Suziki et al.
patent: 5394275 (1995-02-01), Itetani et al.
patent: 5414566 (1995-05-01), Oba et al.
Chin Tommy P.
Meller Michael N.
Victor Company of Japan Ltd.
Vincent David R.
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