P

Inventor

GOPALAKRISHNAN SAINARAYANAN

IN64 patents
⚠️ This page may combine multiple inventors who share the name “GOPALAKRISHNAN SAINARAYANAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

XEROX CORP

45 patents
US9973654B1May 15, 2018

Methods and devices for enhancing edges of a graphic object

XEROX CORP11 citations83
US9167129B1Oct 20, 2015

Method and apparatus for segmenting image into halftone and non-halftone regions

XEROX CORP11 citations83
US10116826B1Oct 30, 2018

Method and apparatus for automatically resuming a print job from portable memory device

XEROX CORP10 citations78
US9712698B1Jul 18, 2017

Customized color for multiple raster content format file

XEROX CORP6 citations73
US9596380B1Mar 14, 2017

Methods and systems for image compression

XEROX CORP3 citations73
US9563961B1Feb 7, 2017

Method and system for image processing

XEROX CORP6 citations73
US9147262B1Sep 29, 2015

Methods and systems for image processing

XEROX CORP6 citations73
US10956107B1Mar 23, 2021

Methods and systems for keyword-based printing

XEROX CORP3 citations72
US10142520B1Nov 27, 2018

Single color background mixed raster content (MRC)

XEROX CORP3 citations72
US10079960B1Sep 18, 2018

System and method for halftoning in a print system

XEROX CORP3 citations72
US10049097B1Aug 14, 2018

Systems and methods for creating multi-layered optical character recognition (OCR) documents

XEROX CORP4 citations72
US9736333B1Aug 15, 2017

Filter configuration for software based image path

XEROX CORP2 citations72
US9712697B1Jul 18, 2017

Detecting sizes of documents scanned using handheld devices

XEROX CORP3 citations72
US9681023B1Jun 13, 2017

Image processing method and system for classification of halftone frequencies

XEROX CORP2 citations72
US9641724B1May 2, 2017

Method and system for compressing and converting an image during printing

XEROX CORP2 citations72
US9628635B1Apr 18, 2017

Systems and methods for halftone frequency detection

XEROX CORP5 citations72
US9607360B2Mar 28, 2017

Modifying the size of document content based on a pre-determined threshold value

XEROX CORP2 citations72
US9681013B2Jun 13, 2017

Methods and systems facilitating generation of digital representations of objects

XEROX CORP3 citations70
US11758068B2Sep 12, 2023

Methods and systems for adding one or more bookmarks while scanning a document

XEROX CORP3 citations67
US10033901B1Jul 24, 2018

System and method for using a mobile camera as a copier

XEROX CORP2 citations66
US12519897B2Jan 6, 2026

Methods and systems for adding one or more security patterns in documents

XEROX CORP0 citations62
US12149663B1Nov 19, 2024

Methods and systems for detecting one or more security patterns in documents

XEROX CORP0 citations62
US11087126B2Aug 10, 2021

Method to improve performance in document processing

XEROX CORP0 citations62
US10460192B2Oct 29, 2019

Method and system for optical character recognition (OCR) of multi-language content

XEROX CORP1 citations62
US10419640B1Sep 17, 2019

Text enhancement in printing material saving mode

XEROX CORP1 citations62
US10341671B2Jul 2, 2019

Method and system for image compression

XEROX CORP1 citations62
US9055251B2Jun 9, 2015

Image processing based on automatic image-type detection

XEROX CORP2 citations62
US10976973B2Apr 13, 2021

Apparatus and method for sharing a printable electronic document between users

XEROX CORP2 citations61
US11954931B1Apr 9, 2024

Methods and systems for detecting tampering of an IR security mark

XEROX CORP0 citations60
US11765288B1Sep 19, 2023

Methods and systems for automatically managing output size of a document submitted for scanning

XEROX CORP1 citations60
US11941937B2Mar 26, 2024

Methods and systems for automatically identifying IR security marks based on known halftone frequency and color information

XEROX CORP0 citations59
US11509791B1Nov 22, 2022

Methods and systems for automatically identifying IR security marks in a document based on halftone frequency information

XEROX CORP1 citations59
US11231893B2Jan 25, 2022

System and method for printing and reusing customized sample sets while printing documents

XEROX CORP0 citations58
US10043116B1Aug 7, 2018

Scheme for text only MRC compression

XEROX CORP1 citations52
US9898693B2Feb 20, 2018

Document background suppression performed during color space conversion

XEROX CORP0 citations52
US9124841B2Sep 1, 2015

Connected component analysis with multi-thresholding to segment halftones

XEROX CORP1 citations52
US9087287B2Jul 21, 2015

Individualizing reduction of original pages in N-up copying or printing

XEROX CORP1 citations52
US11715314B2Aug 1, 2023

Performance improvement with object detection for software based image path

XEROX CORP0 citations51
US11128782B1Sep 21, 2021

Adaptive autocolor detection based on media color

XEROX CORP0 citations51
US10915273B2Feb 9, 2021

Apparatus and method for identifying and printing a replacement version of a document

XEROX CORP0 citations51
US10602019B2Mar 24, 2020

Methods and systems for enhancing image quality for documents with highlighted content

XEROX CORP0 citations51
US9876937B1Jan 23, 2018

Saving marking material using threshold arrays and toner reduction mask

XEROX CORP1 citations51
US9384391B2Jul 5, 2016

Methods and systems for processing documents

XEROX CORP0 citations51
US9215345B2Dec 15, 2015

Method and system for inverse halftoning utilizing inverse projection of predicted errors

XEROX CORP0 citations51
US11652941B1May 16, 2023

Methods and systems for securing confidential content of a document while printing and/or generating a copy of the document

XEROX CORP0 citations48

HCL TECHNOLOGIES LTD

5 patents

Showing the top 50 of 64 patents by PatentIndex Score.