Television – Bandwidth reduction system – Data rate reduction
Patent
1994-10-11
1997-03-25
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348404, 348408, 348419, H04N 750
Patent
active
056149522
ABSTRACT:
Methods and apparatus for reducing the complexity of decoder circuitry and video decoder memory requirements are disclosed. The described video decoders are capable of decoding HDTV pictures at approximately the resolution of standard definition television pictures and can be used to decode HDTV and/or SDTV pictures. The described video decoder may be used as part of a picture-in-picture decoder circuit for providing picture-in-picture capability without providing multiple full resolution video decoders. The reduction in decoder circuit complexity is achieved through the use of a plurality of data reduction techniques including the use of a preparser, downsampling, and truncating pixel values.
REFERENCES:
patent: 4238773 (1980-12-01), Tsuboka et al.
patent: 4931879 (1990-06-01), Koga et al.
patent: 5091785 (1992-02-01), Canfield et al.
patent: 5237460 (1993-08-01), Miller et al.
patent: 5262854 (1993-11-01), Ng
patent: 5313303 (1994-05-01), Ersoz et al.
patent: 5325124 (1994-06-01), Keith
patent: 5325125 (1994-06-01), Naimpally et al.
patent: 5325126 (1994-06-01), Keith
patent: 5335117 (1994-08-01), Park et al.
patent: 5367318 (1994-11-01), Beaudin et al.
patent: 5386241 (1995-01-01), Park
patent: 5390052 (1995-02-01), Kato et al.
patent: 5398072 (1995-03-01), Auld
patent: 5398079 (1995-03-01), Liu
patent: 5408270 (1995-04-01), Lim
patent: 5422677 (1995-06-01), Do
patent: 5477397 (1995-12-01), Naimpally et al.
patent: 5517245 (1996-05-01), Kondo
patent: 5526124 (1996-06-01), Nagawawa
Drafts of Recommendation H.262, ISO/IEC 13818-1 titled "Information Technology13 Generic Coding of Moving Pictures and Associated Audio", (Nov. 1993 ISO-MPEG Committee draft).
Drafts of Recommendation H.262,ISO/IEC 13818-2 titled "Information Technology--Generic Coding of Moving Pictures and Associated Audio", (Nov. 1993 ISO-MPEG Committee draft).
Dong-Ho Lee, Jong-Seok Park and Yung-Gil Kim, "HDTV Video Decoder Which Can Be Implemented With Low Complexity", pp. 6-7, IEEE Journal 1994.
A. Hoffmann, B. Macq and J.J. Quisquater, "Future Prospects of the Cable TV Networks, New Technologies and New Services", Laboratoire de Telecommunications et Teledetection, pp. 13-22.
International Standards Organization--Moving Picture Experts Group, Draft of Recommendation H.262,ISO/IEC 13818-1 titled "Information Technology--Generic Coding Of Moving Pictures and Associated Audio", Nov. 1993.
International Standards Organization--Moving Picture Experts Group, Draft of Recommendation H.262, ISO/IEC 13818-2 titled "Information Technology--Generic Coding Of Moving Pictures and Associated Audio", Nov. 1993.
Boyce Jill M.
Pearlstein Larry
Britton Howard W.
Hitachi America Ltd.
Michaelson Peter L.
Straub Michael P.
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