Television – Bandwidth reduction system – Individual processing of different parts of image frequency...
Patent
1996-05-02
1997-07-08
Kostak, Victor R.
Television
Bandwidth reduction system
Individual processing of different parts of image frequency...
348432, 386123, H04N 726
Patent
active
056466927
ABSTRACT:
By compressing HDTV pictures, they can be recorded on digital SDTV video recorders. Such recorders are widely used in professional studios. The invention relates to a device for formatting the compressed HDTV signal in such a way that the DC values of successive 8*8 picture blocks are processed by SDTV recorders as a smaller but recognizable SDTV sub-picture. Low-cost editing of HDTV programs with standard equipment (SDTV recorders and receivers) is possible with such a device, while the edited final result can be transmitted as a HDTV signal without any further processing operation.
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"Standard for recording digital television signals on magnetic tape in cassettes", EBU-Tech. 3252-E, Sep. 1986, pp. 44-48.
Gathman Laurie E.
Kostak Victor R.
U.S. Philips Corporation
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