Inventor
IU SIU-LEONG
US14 patents
⚠️ This page may combine multiple inventors who share the name “IU SIU-LEONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MATSUSHITA ELECTRIC CORP
6 patentsUS5294974AMar 15, 1994
High-definition video encoding system having color-sensitive quantization
MATSUSHITA ELECTRIC CORP160 citations99
US5442407AAug 15, 1995
Video signal noise reduction system using time-varying filter coefficients
MATSUSHITA ELECTRIC CORP182 citations98
US5361105ANov 1, 1994
Noise reduction system using multi-frame motion estimation, outlier rejection and trajectory correction
MATSUSHITA ELECTRIC CORP93 citations96
USRE36015EDec 29, 1998
Apparatus and method for processing groups of fields in a video data compression system
MATSUSHITA ELECTRIC CORP35 citations92
US5251028AOct 5, 1993
Apparatus for reducing quantization artifacts in an interframe hybrid coding system with motion compensation
MATSUSHITA ELECTRIC CORP42 citations92
US5418617AMay 23, 1995
Motion compensation using minimum bits per motion block as criterion for block matching
MATSUSHITA ELECTRIC CORP13 citations73
DIGITAL VIDEO EXPRESS LP
6 patentsUS6658059B1Dec 2, 2003
Motion field modeling and estimation using motion transform
DIGITAL VIDEO EXPRESS LP114 citations97
US7162642B2Jan 9, 2007
Digital content distribution system and method
DIGITAL VIDEO EXPRESS LP216 citations96
US6285774B1Sep 4, 2001
System and methodology for tracing to a source of unauthorized copying of prerecorded proprietary material, such as movies
DIGITAL VIDEO EXPRESS LP364 citations96
US6901514B1May 31, 2005
Secure oblivious watermarking using key-dependent mapping functions
DIGITAL VIDEO EXPRESS LP98 citations92
US6628715B1Sep 30, 2003
Method and apparatus for estimating optical flow
DIGITAL VIDEO EXPRESS LP46 citations92
US7698570B2Apr 13, 2010
Digital content distribution system and method
DIGITAL VIDEO EXPRESS LP35 citations90