TW373387B - A video decoding circuit and the method of the same - Google Patents

A video decoding circuit and the method of the same

Info

Publication number
TW373387B
TW373387B TW087108184A TW87108184A TW373387B TW 373387 B TW373387 B TW 373387B TW 087108184 A TW087108184 A TW 087108184A TW 87108184 A TW87108184 A TW 87108184A TW 373387 B TW373387 B TW 373387B
Authority
TW
Taiwan
Prior art keywords
frame
decoding circuit
video data
decoded
display
Prior art date
Application number
TW087108184A
Other languages
Chinese (zh)
Inventor
Taner Ozcelik
Shirish C Gadre
Edward J Paluch
Original Assignee
Sony Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Application granted granted Critical
Publication of TW373387B publication Critical patent/TW373387B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Abstract

A decoding circuit for decoding (or decompressing) compressed video data so that portions of the video data, such as error coefficients, are decoded twice, once for the top field of a frame, and once for the bottom field of a frame. Preferably, this duplicative decoding is performed quickly enough so that the bottom field is decoded and ready for display within the time it takes to display the top field (e.g. 1/60 second for a real-time NTSC display). The decoding circuit of the present invention may be used to decode B frames of MPEG1 or MPEG2 compressed video data with less frame memory because frame memory is not required for storing the bottom field of a B frame while the top frame is being decoded and displayed.
TW087108184A 1997-05-30 1998-05-26 A video decoding circuit and the method of the same TW373387B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86652697A 1997-05-30 1997-05-30

Publications (1)

Publication Number Publication Date
TW373387B true TW373387B (en) 1999-11-01

Family

ID=25347792

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087108184A TW373387B (en) 1997-05-30 1998-05-26 A video decoding circuit and the method of the same

Country Status (3)

Country Link
AU (1) AU7796998A (en)
TW (1) TW373387B (en)
WO (1) WO1998054908A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142380A (en) * 1989-10-23 1992-08-25 Ricoh Company, Ltd. Image data processing apparatus
US5363097A (en) * 1992-09-14 1994-11-08 Industrial Technology Research Institute Direct sequential-bit variable length decoder
FR2703535A1 (en) * 1993-03-31 1994-10-07 Philips Electronique Lab Method and apparatus for decoding compressed images
EP0710028A3 (en) * 1994-10-28 2000-01-19 Kabushiki Kaisha Toshiba Image decoding apparatus
US5623311A (en) * 1994-10-28 1997-04-22 Matsushita Electric Corporation Of America MPEG video decoder having a high bandwidth memory
US5646693A (en) * 1994-11-04 1997-07-08 Cismas; Sorin Memory utilization for video decoding and display with 3:2 pull-down
EP0714208B1 (en) * 1994-11-25 2002-02-13 Koninklijke Philips Electronics N.V. Method and system for decoding coded video signals
KR100198541B1 (en) * 1996-08-26 1999-06-15 구자홍 Method for storing image frame data in memory

Also Published As

Publication number Publication date
WO1998054908A1 (en) 1998-12-03
AU7796998A (en) 1998-12-30

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