Color facsimile device with data recompressing capability

Details Color facsimile device with data recompressing capability Color facsimile device with data recompressing capability

2008-05-13

2008-05-13

Haskins, Twyler Lamb (Department: 2625)

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

C358S426020, C358S426030, C358S426140, C358S426010, C382S239000, C382S251000

Reexamination Certificate

active

10669726

ABSTRACT:
JPEG data is efficiently recompressed and transmitted to a remote color facsimile device. Before transmission of recompressed JPEG data, an anticipated transmission time is displayed for enabling the user to easily select the desired compression ratio. To generate recompressed JPEG, a Huffman decoder is provided for decoding encoded data and temporarily generates decoded data. Table generator multiplies the predefined quantization table values by the prescribed value to generate the modified quantization table. Intermediate data generator generates the intermediate data by dividing the encoded data by ratio n, which is derived by dividing predefined quantization table by the modified quantization table. Huffman encoder encodes the intermediate data to create new encoded data. Recompressed JPEG data includes the newly coded data and the modified quantization table.

REFERENCES:
patent: 6542640 (2003-04-01), Morihara et al.
patent: 6795211 (2004-09-01), Eschbach et al.
patent: 2002/0103676 (2002-08-01), Yamaguchi et al.
patent: A 9-294264 (1997-11-01), None
patent: A11-243541 (1999-09-01), None
patent: A 11-243541 (1999-09-01), None
patent: A 2000-278349 (2000-10-01), None
patent: A2000-278349 (2000-10-01), None
patent: A 2001-61068 (2001-03-01), None

Affiliated with

Also associated with

Rating

Color facsimile device with data recompressing capability does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color facsimile device with data recompressing capability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color facsimile device with data recompressing capability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3944354