Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-02-14
1997-12-23
Psitos, Aristotelis M.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386 64, 386 70, 386 72, 386125, 360 7, 360 75, 360 63, 369 60, H04N 576
Patent
active
057013837
ABSTRACT:
A video time-shifting system characterized in having a continuous recording track accessed by separate, asychronous read and write facilities enables playback of a video program to commence from any point in the program while continuing to be recorded in real time, thus providing VCR-like program control features such as PAUSE/RESUME, REWIND, and FAST FORWARD. A memory is used to store information relating to various points in the program so that even upon receipt of multiple PAUSE commands, the system automatically keeps track of correct program re-entry. In the preferred embodiment, the storage means takes the form of a continuous recording track in a magnetic disk drive. To prevent discontinuities associated with the recording and reproducing of material representative of the video program, the system preferably incorporates a plurality of write heads, each associated with a different recording track, and the system automatically switches from one write head to another so as to effectively link the different recording tracks into a single, continuous recording track. Although program information may be stored in analog form, digital storage is used in the preferred embodiment along with data compression to increase recording capacity. The system preferably further includes a video display generator to output for viewing on the display device visual indicia relating to the program and, additionally, symbols relating to one or more points in the program and/or the time-shifted version thereof.
REFERENCES:
patent: 3341833 (1967-09-01), Jones
patent: 3645539 (1972-02-01), Jenkins
patent: 3682363 (1972-08-01), Hull
patent: 3855426 (1974-12-01), Bouwhuis
patent: 4283735 (1981-08-01), Jagger
patent: 4319286 (1982-03-01), Hanpachern
patent: 4325080 (1982-04-01), Satoh
patent: 4408309 (1983-10-01), Kiesling
patent: 4430676 (1984-02-01), Johnson
patent: 4445195 (1984-04-01), Yamamoto
patent: 4577240 (1986-03-01), Hedberg
patent: 4633331 (1986-12-01), McGrady
patent: 4786982 (1988-11-01), Wakahara
patent: 4876670 (1989-10-01), Nakabayashi
patent: 4891715 (1990-01-01), Levy
patent: 4908713 (1990-03-01), Levine
patent: 4949187 (1990-08-01), Cohen
patent: 4963866 (1990-10-01), Duncan
patent: 4972396 (1990-11-01), Rafner
patent: 4991033 (1991-02-01), Takeshita
patent: 5021893 (1991-06-01), Scheffler
patent: 5063453 (1991-11-01), Yoshimura
patent: 5134499 (1992-07-01), Sata
patent: 5227934 (1993-07-01), Vasilescu
patent: 5241428 (1993-08-01), Goldwasser
patent: 5329320 (1994-07-01), Vifrach
patent: 5345430 (1994-09-01), Moe
patent: 5357383 (1994-10-01), Godwin
patent: 5371551 (1994-12-01), Logan
patent: 5438423 (1995-08-01), Lynch
patent: 5457583 (1995-10-01), Kaneko
patent: 5555463 (1996-09-01), Staron
Levine Michael R.
Russo James
Faber Alan
Gemstar Development Corporation
Psitos Aristotelis M.
LandOfFree
Video time-shifting apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Video time-shifting apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video time-shifting apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1806837