Method and receiving apparatus for decoding compressed frames

Details Method and receiving apparatus for decoding compressed frames Method and receiving apparatus for decoding compressed frames

1995-12-07

1998-10-27

Au, Amelia

Television

Bandwidth reduction system

Data rate reduction

348409, H04N 736

Patent

active

058284125

ABSTRACT:
There are frames of three types, namely intraframes (I0), predicted frames (P3, P6) and interpolated or bidirectional frames (B1, B2). Each bidirectional frame is decoded twice in succession, a first time (1.sup.1) for obtaining a first field (1e) and displaying it as its decoding proceeds, while the second field is obtained in the course of the same decoding operation but is not used, and subsequently a second time (1.sub.2) for obtaining the second field (1o) and displaying it progressively. As the bidirectional frames are decoded and displayed in lines of blocks, the lines of blocks which are being decoded are located progressively in a memory, each time in place of a line of blocks whose contents have been displayed.

REFERENCES:
patent: 5347308 (1994-09-01), Wai
patent: 5386233 (1995-01-01), Keith
patent: 5539466 (1996-07-01), Igarashi et al.

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