Inventor

Ricardo L. de Queiroz

Inventor

Pittsford, NY, US

Overview

1997–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 48 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Nprimary

H04NPictorial communication, e.g. television54%

G06TImage data processing or generation, in general34%

G06VImage or video recognition or understanding7%

B41JTypewriters1%

G09GArrangements or circuits for control of indicating devices using static means to present variable information1%

H03MCoding1%

PatentTitleYear

10,694,210Scalable point cloud compression with transform, and corresponding decompression2020 10,262,451View-dependent color compression2019 10,223,810Region-adaptive hierarchical transform and entropy coding for point cloud compression, and corresponding decompression2019 7,627,761'System for authentication of JPEG image data'2009 7,590,298'Decompression with reduced ringing artifacts'2009 7,493,489'System and method for authentication of JPEG image data'2009 7,391,901'Method for embedding color image information into a black-and-white image'2008 7,360,093'System and method for authentication of JPEG image data'2008 7,313,696'Method for authentication of JPEG image data'2007 7,215,817'System and method for digital watermarking in a calibrated printing path'2007 7,187,805'Maximum likelihood estimation of JPEG quantization values'2007 7,106,901'Method and apparatus for image classification'2006 7,070,252'System and method for digital watermarking in a calibrated printing path'2006 6,954,287'Gamut mapping preserving local luminance differences with adaptive spatial filtering'2005 6,795,211'Resolution enhancement of compressed image data'2004 6,778,301'Fast preview of CCITT-compressed documents'2004 6,778,707'Method for decompressing JPEG files using a variable block size inverse discrete cosine transform'2004 6,738,524'Halftone detection in the wavelet domain'2004 6,707,938'Principal axis look-up for color correction'2004 6,683,994'HVQ-based filtering method'2004 6,646,762'Gamut mapping preserving local luminance differences'2003 6,611,626'Method of compressing JPEG files using a conditional transform'2003 6,563,955'Method and apparatus for analyzing image data to use multiple transforms for enhanced image data transmission'2003 6,385,342'Blocking signature detection for identification of JPEG images'2002 6,377,706'Compression framework incorporating decoding commands'2002 6,373,981'Method and apparatus for segmenting data to create mixed raster content planes'2002 6,334,001'Iterative smoothing technique for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios'2001 6,275,620'Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios'2001 6,272,255'Method and apparatus for pre-processing mixed raster content planes to improve the quality of a decompressed image and increase document compression ratios'2001 6,272,251'Fully automatic pasting of images into compressed pre-collated documents'2001 6,256,416'Blocking signature detection for identification of JPEG images'2001 6,256,421'Method and apparatus for simulating JPEG compression'2001 6,219,450'Blocking signature detection for identification JPEG images'2001 6,195,456'Multi resolution color correction using wavelet transforms'2001 6,195,457'Blocking signature detection for identification of JPEG images'2001 6,175,653'Fast decompression and rotation for devices with asymmetric resolution'2001 6,167,153'Method of compressing JPEG files'2000 6,097,838'Color correction of a compressed image'2000 6,081,211'Minimal buffering method and system for optimized encoding tables in JPEG compression'2000 6,075,886'Method and apparatus for reducing the complexity of color correction using subsampling'2000 6,058,210'Using encoding cost data for segmentation of compressed image sequences'2000 6,009,192'Color correction of a compressed image'1999 5,892,854'Automatic image registration using binary moments'1999 5,867,598'Method and apparatus for processing of a JPEG compressed image'1999 5,854,857'Using encoding cost data for segmentation and background suppression in JPEG-compressed images'1998 5,838,831'Compression of image data with retaining cost data for each compressed image block'1998 5,799,112'Method and apparatus for wavelet-based universal halftone image unscreening'1998 H0001684'Fast preview processing for JPEG compressed images'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2009Patents assigned to XEROX CORP (45)· patent assignee history

1997–2001Based in Fairport, NY, US· patent location history

2000–2009Based in Pittsford, NY, US· patent location history

2006–2020Based in Brasilia, BR· patent location history

2019–2020Patents assigned to MICROSOFT TECHNOLOGY LICENSING LLC (2)· patent assignee history

2019Patents assigned to 8I LTD (1)· patent assignee history

2019Based in Culver City, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
XEROX CORP	45	1997–2009
MICROSOFT TECHNOLOGY LICENSING LLC	2	2019–2020
8I LTD	1	2019

Locations

Location	Patents	Span
Pittsford, New York, US	28	2000–2009
Fairport, New York, US	12	1997–2001
Brasilia, BR	7	2006–2020
Culver City, California, US	1	2019