Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-05-30
2010-12-14
Philippe, Gims S (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C348S240200, C345S604000
Reexamination Certificate
active
07852948
ABSTRACT:
The moving picture real-time communications terminal comprises: an input unit which inputs an RGB video image signal; a conversion unit which converts the RGB video image signal into a YUV video image signal including Y, U and V video image signals; a compression and encoding unit which digitally converts the YUV video image signal outputted from the conversion unit into moving picture data, and compresses and encodes the moving picture data; a communications unit which sends and receives the moving picture data compressed and encoded by the compression and encoding unit, in real time, to and from a communications terminal of another party connected through a network; a bandwidth estimation unit which estimates change in a bandwidth of the network; a switching circuit which connects and disconnects output paths of the U and V video image signals from the conversion unit to the compression and encoding unit; and a switching control unit which disconnects the output paths of the U and V video image signals by operating the switching circuit, in response to the change in the bandwidth estimated by the bandwidth estimation unit, wherein the compression and encoding unit increases a bit rate of compression and encoding of the Y signal, in accordance with disconnection of the output paths of the U and V video image signals.
REFERENCES:
patent: 5493339 (1996-02-01), Birch et al.
patent: 2004/0218269 (2004-11-01), Divelbiss et al.
patent: 2005/0123058 (2005-06-01), Greenbaum et al.
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patent: 2004/010703 (2004-01-01), None
Notice of Reasons for Rejection, dated Oct. 21, 2010, issued in corresponding JP Application No. 2005-156224, 7 pages in English and Japanese.
FUJIFILM Corporation
Philippe Gims S
Sughrue & Mion, PLLC
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