Systems and methods for error diffusion

Details Systems and methods for error diffusion Systems and methods for error diffusion

2003-04-16

2009-06-23

Lee, Thomas D (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S523000, C382S252000

Reexamination Certificate

active

07551323

ABSTRACT:
Error diffusion is performed upon input image data. In one aspect, multiple error diffusion processing elements perform error diffusion on a selected pixel in parallel. In another aspect, the error diffusion logic is integrally formed with a fast local memory in the same electronic device, such as an ASIC. The error data produced by the error diffusion logic for a pixel is buffered in the fast local memory until it is to be used by the error diffusion logic on other pixels. In still another aspect, a first-in-first-out (FIFO) buffer regulates or buffers the color image data between the output of a color conversion system, such as a colorant lookup table, and the input an error diffusion processing element. In yet another aspect, the error diffusion logic has tagging logic that produces and stores an indicator, either in the output data stream itself or in a separate area, to indicate whether a raster contains printable data.

REFERENCES:
patent: 3971044 (1976-07-01), Findley et al.
patent: 4814831 (1989-03-01), Iwamoto
patent: 5051841 (1991-09-01), Bowers et al.
patent: 5051844 (1991-09-01), Sullivan
patent: 5070413 (1991-12-01), Sullivan et al.
patent: 5107346 (1992-04-01), Bowers et al.
patent: 5111218 (1992-05-01), Lebeau et al.
patent: 5130823 (1992-07-01), Bowers
patent: 5218350 (1993-06-01), Bollman
patent: 5226096 (1993-07-01), Fan
patent: 5243443 (1993-09-01), Eschbach
patent: 5276535 (1994-01-01), Levien
patent: 5313287 (1994-05-01), Barton
patent: 5483625 (1996-01-01), Robertson et al.
patent: 5515456 (1996-05-01), Ballard
patent: 5539537 (1996-07-01), Nozawa
patent: 5581376 (1996-12-01), Harrington
patent: 5604605 (1997-02-01), Moolenaar
patent: 5611022 (1997-03-01), Estrada et al.
patent: 5621546 (1997-04-01), Klassen et al.
patent: 5642204 (1997-06-01), Wang
patent: 5689294 (1997-11-01), Karz et al.
patent: 5692109 (1997-11-01), Shu
patent: 5692843 (1997-12-01), Furuya
patent: 5710836 (1998-01-01), Shiau et al.
patent: 5712927 (1998-01-01), Kim et al.
patent: 5737453 (1998-04-01), Ostromoukhov
patent: 5748785 (1998-05-01), Mantell et al.
patent: 5828814 (1998-10-01), Cyman et al.
patent: 5835687 (1998-11-01), Brown et al.
patent: 5848224 (1998-12-01), Nhu
patent: 5854620 (1998-12-01), Mills et al.
patent: 5870503 (1999-02-01), Kumashiro
patent: 5914729 (1999-06-01), Lippincott
patent: 5915079 (1999-06-01), Vondran, Jr. et al.
patent: 5930010 (1999-07-01), Cheung et al.
patent: 5931960 (1999-08-01), Kletter et al.
patent: 5946455 (1999-08-01), Tresser et al.
patent: 5987270 (1999-11-01), Hulan et al.
patent: 6002804 (1999-12-01), Bhaskar et al.
patent: 6002814 (1999-12-01), Chadez
patent: 6016205 (2000-01-01), Silverberg et al.
patent: 6057933 (2000-05-01), Hudson et al.
patent: 6078343 (2000-06-01), Jordan
patent: 6081344 (2000-06-01), Bockman et al.
patent: 6081653 (2000-06-01), Zandian
patent: 6100998 (2000-08-01), Nagao et al.
patent: 6141114 (2000-10-01), Mantell et al.
patent: 6289138 (2001-09-01), Yip et al.
patent: 6307647 (2001-10-01), Cheung et al.
patent: 6356362 (2002-03-01), Ostromoukhov
patent: 2002/0051210 (2002-05-01), Ostromoukhov
patent: 2002/0080419 (2002-06-01), Usui et al.
patent: 2002/0145758 (2002-10-01), Lin et al.
Michael T. Brady, “High Speed Multilevel Halftoning Hardware,” Proceedings of SPIE, p. 257-263, vol. 4663, (May 16, 2002).
Destiny Embedded Technologies System on a Chip, “D8501 Based Workgroup II Printer Platform” web page, Jan. 15, 2003.
Kang, “Fast Error Diffusion”, Proceedings of SPIE, p. 302-309, vol. 4663, (May 16, 2002).

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