Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2007-09-11
2007-09-11
Lamb, Twyler (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S001900, C358S003040, C358S003050, C358S003060, C358S521000, C358S534000, C382S252000
Reexamination Certificate
active
10346985
ABSTRACT:
There has been a demand to accelerate image data conversion through the use of the error diffusion method. To convert image data, it is determined whether a specified block process condition is satisfied on the basis of a gradation value for each pixel in a target block. When the block process condition is true, a process is performed to diffuse a gradation error for the entire target block and convert image data for pixels in the target block at a time. Even when the block process condition is false, it is determined whether to form a dot in the target block. When it is determined that no dot should be formed, a process is performed to diffuse a gradation error for the entire target block to the unconverted pixels in another block and convert image data for pixels in the target block.
REFERENCES:
patent: 4595948 (1986-06-01), Itoh et al.
patent: 4654721 (1987-03-01), Goertzel et al.
patent: 5008950 (1991-04-01), Katayama et al.
patent: 5535019 (1996-07-01), Eschbach
patent: 5583661 (1996-12-01), Kurita et al.
patent: 6760127 (2004-07-01), Shin et al.
patent: 6778299 (2004-08-01), Lin et al.
patent: 2001/0021041 (2001-09-01), Suzuki
patent: 0 382 580 (1990-08-01), None
patent: 0 444 290 (1991-09-01), None
patent: 0 561 417 (1993-09-01), None
patent: 0 602 854 (1994-06-01), None
patent: 0 735 741 (1996-10-01), None
patent: 1 195 981 (2002-04-01), None
patent: 09-130606 (1997-05-01), None
patent: 09-254424 (1997-09-01), None
patent: 09-290533 (1997-11-01), None
patent: 11-069164 (1999-03-01), None
Abstract of Japanese Patent Publication No. 09-130606, Pub. Date: May 16, 1997, Patent Abstracts of Japan.
Abstract of Japanese Patent Publication No. 09-254424, Pub. Date: Sep. 30, 1997, Patent Abstracts of Japan.
Abstract of Japanese Patent Publication No. 09-290533, Pub. Date: Nov. 11, 1997, Patent Abstracts of Japan.
Abstract of Japanese Patent Publication No. 11-069164, Pub. Date: Mar. 9, 1999, Patent Abstracts of Japan.
Lamb Twyler
Martine & Penilla & Gencarella LLP
Seiko Epson Corporation
Zheng Jacky X.
LandOfFree
Image data processing apparatus, method, and program that... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image data processing apparatus, method, and program that..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image data processing apparatus, method, and program that... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3785115