Ching-Wei Chang

Person

Vancouver, WA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Surround error diffusion
- Patent number 8,320,694
- Issue date Nov 27, 2012
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intelligent toner saving for color copying
- Patent number 8,284,467
- Issue date Oct 9, 2012
- Sharp Laboratories of America, Inc.
- Ronnie Neil Patton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-level surround error diffusion
- Patent number 8,274,705
- Issue date Sep 25, 2012
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-bit-depth error diffusion for the reproduction of color or mo...
- Patent number 8,134,749
- Issue date Mar 13, 2012
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Font and line art rendering for multi-bit output devices
- Patent number 8,059,311
- Issue date Nov 15, 2011
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color information encoding in monochrome printing
- Patent number 7,944,585
- Issue date May 17, 2011
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multilevel halftoning for tint graphic, line art and text rendering
- Patent number 7,911,646
- Issue date Mar 22, 2011
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Intelligent toner saving for color printing
- Patent number 7,835,035
- Issue date Nov 16, 2010
- Sharp Laboratories of America, Inc.
- Ronnie Neil Patton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scan-to-print color rendering
- Patent number 7,826,093
- Issue date Nov 2, 2010
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Dot-gain reduction method for multi-level halftoning
- Patent number 7,554,696
- Issue date Jun 30, 2009
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Error diffusion halftoning system
- Patent number 7,417,771
- Issue date Aug 26, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Vector error diffusion
- Patent number 7,417,772
- Issue date Aug 26, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color error diffusion method
- Patent number 7,369,274
- Issue date May 6, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color error diffusion method for multi-level output device
- Patent number 7,352,489
- Issue date Apr 1, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for rendering an image comprising multi-level pixels
- Patent number 7,286,267
- Issue date Oct 23, 2007
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for screening of halftone images
- Patent number 7,262,879
- Issue date Aug 28, 2007
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Halftone image down-sampling
- Patent number 7,242,500
- Issue date Jul 10, 2007
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Systems and methods for downscaling an image
- Patent number 7,154,514
- Issue date Dec 26, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for rendering an image comprising multi-level pixels
- Patent number 7,102,789
- Issue date Sep 5, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Patterning and dot gain improvement for vector error diffusion
- Patent number 7,091,987
- Issue date Aug 15, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Non-segmentation, individual pixel-by-pixel-based image rendering s...
- Patent number 7,061,645
- Issue date Jun 13, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optimizing the advantages of multi-level rendering
- Patent number 7,046,863
- Issue date May 16, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Color error diffusion with color bleed control
- Patent number 6,977,663
- Issue date Dec 20, 2005
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Multi-Level Surround Error Diffusion
- Publication number 20100245924
- Publication date Sep 30, 2010
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Surround Error Diffusion
- Publication number 20100246987
- Publication date Sep 30, 2010
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
GAMMA CORRECTION METHOD FOR ERROR DIFFUSION
- Publication number 20100134809
- Publication date Jun 3, 2010
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PARTITION HALFTONE FOR MULTI-TONE LEVEL OUTPUT DEVICE
- Publication number 20100027074
- Publication date Feb 4, 2010
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Multilevel Halftoning for Tint Graphic, Line Art and Text Rendering
- Publication number 20090195794
- Publication date Aug 6, 2009
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Font and Line Art Rendering for Multi-Bit Output Devices
- Publication number 20090195795
- Publication date Aug 6, 2009
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MULTI-BIT-DEPTH ERROR DIFFUSION FOR THE REPRODUCTION OF COLOR OR MO...
- Publication number 20080291499
- Publication date Nov 27, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COLOR INFORMATION ENCODING IN MONOCHROME PRINTING
- Publication number 20080198172
- Publication date Aug 21, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RASTER OPERATION TABLE CONVERSION FOR COLOR SPACES
- Publication number 20080192066
- Publication date Aug 14, 2008
- Sharp Laboratories of America, Inc.
- CHING-WEI CHANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
GAMUT MAPPING FOR PRINTER COLOR RENDERING
- Publication number 20080192269
- Publication date Aug 14, 2008
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Intelligent toner saving for color printing
- Publication number 20080170246
- Publication date Jul 17, 2008
- Sharp Laboratories of America, Inc.
- Ronnie Neil Patton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Intelligent toner saving for color copying
- Publication number 20080170247
- Publication date Jul 17, 2008
- Sharp Laboratories of America, Inc.
- Ronnie Neil Patton
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SCAN-TO-PRINT COLOR RENDERING
- Publication number 20070146754
- Publication date Jun 28, 2007
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color calibration method and structure for vector error diffusion
- Publication number 20070019217
- Publication date Jan 25, 2007
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color rendering for toner-save printing
- Publication number 20060238792
- Publication date Oct 26, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for rendering an image comprising multi-level pixels
- Publication number 20060139695
- Publication date Jun 29, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color error diffusion method
- Publication number 20060061781
- Publication date Mar 23, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Patterning and dot gain improvement for vector error diffusion
- Publication number 20060022998
- Publication date Feb 2, 2006
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color error diffusion method for multi-level output device
- Publication number 20050213121
- Publication date Sep 29, 2005
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color error diffusion with color bleed control
- Publication number 20050212816
- Publication date Sep 29, 2005
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Dot-gain reduction method for multi-level halftoning
- Publication number 20050190385
- Publication date Sep 1, 2005
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Vector error diffusion
- Publication number 20050162703
- Publication date Jul 28, 2005
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Paper white determination
- Publication number 20040179730
- Publication date Sep 16, 2004
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Halftone image down-sampling
- Publication number 20040179751
- Publication date Sep 16, 2004
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Systems and methods for downscaling an image
- Publication number 20040056873
- Publication date Mar 25, 2004
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Optimizing the advantages of multi-level rendering
- Publication number 20030179954
- Publication date Sep 25, 2003
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Pixel based image rendering system
- Publication number 20030058461
- Publication date Mar 27, 2003
- Ching-Wei Chang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method for rendering an image comprising multi-level pixels
- Publication number 20030053136
- Publication date Mar 20, 2003
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Error diffusion halftoning system
- Publication number 20020196484
- Publication date Dec 26, 2002
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for screening of halftone images
- Publication number 20020171873
- Publication date Nov 21, 2002
- Sharp Laboratories of America, Inc.
- Ching-Wei Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Ching-Wei Chang

Person

Patents Grantslast 30 patents

Surround error diffusion

Intelligent toner saving for color copying

Multi-level surround error diffusion

Multi-bit-depth error diffusion for the reproduction of color or mo...

Font and line art rendering for multi-bit output devices

Color information encoding in monochrome printing

Multilevel halftoning for tint graphic, line art and text rendering

Intelligent toner saving for color printing

Scan-to-print color rendering

Dot-gain reduction method for multi-level halftoning

Error diffusion halftoning system

Vector error diffusion

Color error diffusion method

Color error diffusion method for multi-level output device

Method for rendering an image comprising multi-level pixels

Method for screening of halftone images

Halftone image down-sampling

Systems and methods for downscaling an image

Method for rendering an image comprising multi-level pixels

Patterning and dot gain improvement for vector error diffusion

Non-segmentation, individual pixel-by-pixel-based image rendering s...

Optimizing the advantages of multi-level rendering

Color error diffusion with color bleed control

Patents Applicationslast 30 patents

Multi-Level Surround Error Diffusion

Surround Error Diffusion

GAMMA CORRECTION METHOD FOR ERROR DIFFUSION

PARTITION HALFTONE FOR MULTI-TONE LEVEL OUTPUT DEVICE

Multilevel Halftoning for Tint Graphic, Line Art and Text Rendering

Font and Line Art Rendering for Multi-Bit Output Devices

MULTI-BIT-DEPTH ERROR DIFFUSION FOR THE REPRODUCTION OF COLOR OR MO...

COLOR INFORMATION ENCODING IN MONOCHROME PRINTING

RASTER OPERATION TABLE CONVERSION FOR COLOR SPACES

GAMUT MAPPING FOR PRINTER COLOR RENDERING

Intelligent toner saving for color printing

Intelligent toner saving for color copying

SCAN-TO-PRINT COLOR RENDERING

Color calibration method and structure for vector error diffusion

Color rendering for toner-save printing

Method for rendering an image comprising multi-level pixels

Color error diffusion method

Patterning and dot gain improvement for vector error diffusion

Color error diffusion method for multi-level output device

Color error diffusion with color bleed control

Dot-gain reduction method for multi-level halftoning

Vector error diffusion

Paper white determination

Halftone image down-sampling

Systems and methods for downscaling an image

Optimizing the advantages of multi-level rendering

Pixel based image rendering system

Method for rendering an image comprising multi-level pixels

Error diffusion halftoning system

Method for screening of halftone images