Inventor
ZENG WENJUN
US30 patents
⚠️ This page may combine multiple inventors who share the name “ZENG WENJUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP LAB OF AMERICA INC
13 patentsUS6505299B1Jan 7, 2003
Digital image scrambling for image coding systems
SHARP LAB OF AMERICA INC290 citations99
US7206804B1Apr 17, 2007
Methods and systems for transmitting digital images
SHARP LAB OF AMERICA INC98 citations98
US7203234B1Apr 10, 2007
Method of directional filtering for post-processing compressed video
SHARP LAB OF AMERICA INC91 citations98
US6373974B2Apr 16, 2002
Method for extracting multiresolution watermark images to determine rightful ownership
SHARP LAB OF AMERICA INC102 citations98
US7035473B1Apr 25, 2006
Distortion-adaptive visual frequency weighting
SHARP LAB OF AMERICA INC62 citations96
US6707952B1Mar 16, 2004
Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
SHARP LAB OF AMERICA INC59 citations96
US6236757B1May 22, 2001
Joint coding method for images and videos with multiple arbitrarily shaped segments or objects
SHARP LAB OF AMERICA INC55 citations96
US6640005B1Oct 28, 2003
Method for inconspicuously adding tracking data in coded images
SHARP LAB OF AMERICA INC32 citations93
US6522783B1Feb 18, 2003
Re-indexing for efficient compression of palettized images
SHARP LAB OF AMERICA INC37 citations93
US7221761B1May 22, 2007
Error resilient digital video scrambling
SHARP LAB OF AMERICA INC44 citations92
US7440635B2Oct 21, 2008
Method for removing ringing artifacts from locations near dominant edges of an image reconstructed after compression
SHARP LAB OF AMERICA INC9 citations84
US7062104B2Jun 13, 2006
Distortion-adaptive visual frequency weighting
SHARP LAB OF AMERICA INC3 citations63
US7970819B2Jun 28, 2011
Methods and systems for transmitting digital images
SHARP LAB OF AMERICA INC0 citations52
MICROSOFT TECHNOLOGY LICENSING LLC
8 patentsUS11003949B2May 11, 2021
Neural network-based action detection
MICROSOFT TECHNOLOGY LICENSING LLC8 citations78
US10019629B2Jul 10, 2018
Skeleton-based action detection using recurrent neural network
MICROSOFT TECHNOLOGY LICENSING LLC2 citations71
US10789482B2Sep 29, 2020
On-line action detection using recurrent neural network
MICROSOFT TECHNOLOGY LICENSING LLC3 citations68
US10497095B2Dec 3, 2019
Dual-sensor hyperspectral motion imaging system
MICROSOFT TECHNOLOGY LICENSING LLC1 citations62
US12537015B2Jan 27, 2026
Speech enhancement
MICROSOFT TECHNOLOGY LICENSING LLC1 citations61
US10469824B2Nov 5, 2019
Hybrid digital-analog coding of stereo video
MICROSOFT TECHNOLOGY LICENSING LLC0 citations51
US10460456B2Oct 29, 2019
Motion detection of object
MICROSOFT TECHNOLOGY LICENSING LLC0 citations45
US10869029B2Dec 15, 2020
Hybrid digital-analog coding
MICROSOFT TECHNOLOGY LICENSING LLC0 citations41
SHARP LAB OF AMERICA
4 patentsUS6792129B1Sep 14, 2004
Digital watermarking in a perceptually uniform domain
SHARP LAB OF AMERICA60 citations96
US6658162B1Dec 2, 2003
Image coding method using visual optimization
SHARP LAB OF AMERICA49 citations93
US6553148B2Apr 22, 2003
Joint coding method for images and videos with multiple arbitrarily shaped segments or objects
SHARP LAB OF AMERICA31 citations93
US6462788B1Oct 8, 2002
Method and system for removing color bleeding artifacts by filtering the chrominance plane of decompressed images
SHARP LAB OF AMERICA8 citations74