Image display device and method, and image communication apparat

Details Image display device and method, and image communication apparat Image display device and method, and image communication apparat

1998-01-29

2000-05-30

Matar, Ahmad F.

Electrical computers and digital processing systems: multicomput

Computer-to-computer data modifying

Compressing/decompressing

709217, 709224, 709232, G06F 1516, G06F 15173

Patent

active

060701951

ABSTRACT:
It is arranged so that a summary of schematic images is promptly displayed even if a transmission speed is low. For that purpose, a numerical value indicating a reference resolution is substituted for a variable r. The current time is substituted for a variable t0, and data having a resolution of r is decoded. The current time is substituted for a variable t1, and a time period required for decoding processing is calculated. If there is no succeeding image, the process is terminated. On the other hand, if there is a succeeding image, the time period of the decoding processing (t1-t0) is compared with a reference time period Tref. If (t1-t0) exceeds Tref, the resolution is halved. If (t1-t0) is equal to or less than Tref, (t1-t0) is compared with Tref/2. If (t1-t0) is less than Tref/2, the resolution is doubled. By thus changing or maintaining the resolution, the processing of the second step and the succeeding steps is repeated.

REFERENCES:
patent: 5522041 (1996-05-01), Murakami et al.
patent: 5699458 (1997-12-01), Sprague
patent: 5737619 (1998-04-01), Judson
patent: 5764235 (1998-06-01), Hunt et al.
patent: 5778372 (1998-07-01), Cordell et al.

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