Time warping for video viewing

Details Time warping for video viewing Time warping for video viewing

1994-05-11

1995-08-01

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

360 331, 360 13, H04N 576

Patent

active

054384230

ABSTRACT:
Time warping for video viewing is achieved by providing a random access dynamic buffer for a video signal from a selected video channel. The video signal is continuously written into the dynamic buffer in a recirculating fashion, and may be read out on a random access basis so that the viewer may control the realtime video viewing in the same manner as controlling a video cassette recorder up to the duration of the video signal stored in the dynamic buffer. In addition the viewer may view the video at various speeds and skip to any point in the stored information. Portions of the video signal in the dynamic buffer may be stored in a static buffer or transferred permanently to a video cassette recorder for subsequent manipulation by the viewer. To expand the capacity of the dynamic buffer a compression circuit may be provided for compressing the video signal before being written into the dynamic buffer. Likewise a decompression circuit for the compressed video signal from the dynamic buffer reconstructs a full bandwidth video signal for display.

REFERENCES:
patent: 5134499 (1992-07-01), Sata et al.

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