P

Inventor

YU HONG HEATHER

US75 patents
⚠️ This page may combine multiple inventors who share the name “YU HONG HEATHER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

18 patents
US7167560B2Jan 23, 2007

Partial encryption of stream-formatted media

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD100 citations98
US7058570B1Jun 6, 2006

Computer-implemented method and apparatus for audio data hiding

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD97 citations98
US6611608B1Aug 26, 2003

Human visual model for data hiding

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD85 citations98
US6456726B1Sep 24, 2002

Methods and apparatus for multi-layer data hiding

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD170 citations98
US7006630B2Feb 28, 2006

Methods and apparatus for digital content protection

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD59 citations96
US7047187B2May 16, 2006

Method and apparatus for audio error concealment using data hiding

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD58 citations94
US7065212B1Jun 20, 2006

Data hiding in communication

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations93
US7058284B2Jun 6, 2006

Universal multimedia optic disc player and its application for revocable copy protection

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD22 citations93
US7042525B1May 9, 2006

Video indexing and image retrieval system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations93
US6996717B2Feb 7, 2006

Semi-fragile watermarking system for MPEG video authentication

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD29 citations93
US6775394B2Aug 10, 2004

Digital watermarking of binary document using halftoning

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations93
US7150003B2Dec 12, 2006

Class coalescence for obfuscation of object-oriented software

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD117 citations92
US7110338B2Sep 19, 2006

Apparatus and method for fingerprinting digital media

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations90
US6850910B1Feb 1, 2005

Active data hiding for secure electronic media distribution

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations90
US7046820B2May 16, 2006

Methods for digital watermarking of images and images produced thereby

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations84
US6842743B2Jan 11, 2005

Transparent secure electronic credit card transaction protocol with content-based authentication

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations80
US7369752B2May 6, 2008

Universal multimedia optic disc player and its application for revocable copy protection

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD5 citations74
US6978371B1Dec 20, 2005

Data hiding in digital multimedia

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10 citations74

FUTUREWEI TECHNOLOGIES INC

11 patents

XEROX CORP

3 patents

LU TAORAN

3 patents

HUANG YU

2 patents

TIAN JUN

2 patents

LI HONGBING

2 patents

LIN KUI

2 patents

GAO JIZHOU

1 patent

ZHANG YAN

1 patent

PANASONIC CORP

1 patent

WANG QI

1 patent

YANG LEI

1 patent

HAN BING

1 patent

HAN TAO

1 patent

Showing the top 50 of 75 patents by PatentIndex Score.