Method for recording images in a digital video cassette recorder

Details Method for recording images in a digital video cassette recorder Method for recording images in a digital video cassette recorder

1993-11-29

1996-12-24

Tran, Thai Q.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386111, 386112, H04N 592, H04N 5782

Patent

active

055878059

ABSTRACT:
A method for recording images in a digital video cassette recorder, which utilizes high compressibility, and which is advantageous in an interframe coding method, includes steps for regularly and repeatedly recording low-frequency data of an intraframe corresponding to the outline of a picture in a group of pictures (GOP) unit and providing remaining data recording area in an end area of each GOP unit to permit data quantity fixation and in order to perform trick play operations. Furthermore, the method orders sub-images of a picture regularly or irregularly while recording the low-frequency data of all the sub-images which belong to a same cluster in low-frequency data recording area of each sub-image, to thereby raise picture quality during trick play.

REFERENCES:
patent: 5068744 (1991-11-01), Ito
patent: 5148272 (1992-09-01), Acampora et al.
patent: 5231487 (1993-07-01), Hurley et al.
patent: 5282049 (1994-01-01), Hatakenaka et al.
patent: 5309290 (1994-05-01), Sugiyama et al.
patent: 5309292 (1994-05-01), Takakura
patent: 5313471 (1994-05-01), Otaka et al.
patent: 5339108 (1994-08-01), Coleman et al.
patent: 5351131 (1994-09-01), Nishino et al.

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