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GRASS VALLEY GROUP

Overview
  • Total Patents
    516
About

GRASS VALLEY GROUP has a total of 516 patent applications. Its first patent ever was published in 1966. It filed its patents most often in United States, Japan and EPO (European Patent Office). Its main competitors in its focus markets audio-visual technology, basic communication technologies and computer technology are HITACHI AMERICA LTD, ROK PRODUCTIONS LTD and THOMSON CONSUMER ELETRONICS IN.

Patent filings in countries

World map showing GRASS VALLEY GROUPs patent filings in countries

Patent filings per year

Chart showing GRASS VALLEY GROUPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jackson Richard A 50
#2 Abt John 34
#3 Chaplin Daniel J 29
#4 Barnett Ronnie D 28
#5 Dayton Birney D 21
#6 Windrem Kevin D 18
#7 Bannister Richard S 18
#8 Hershberger David L 18
#9 Fairhurst Jon A 18
#10 Stanger Leon J 16

Latest patents

Publication Filing date Title
US7013361B2 Routing switcher with variable input/output architecture
US6411520B1 Modular equipment frame and modules
US6104997A Digital audio receiver with multi-channel swapping
US5528308A Direct synthesis of a digital audio sample clock
US5483538A Audio frame synchronization for embedded audio demultiplexers
US5448301A Programmable video transformation rendering method and apparatus
GB9408497D0 Method of creating video effects by use of keyframes
US5386242A Self keyer with background gap fill
US5430615A Printed circuit board assembly
US5400081A Chroma keyer with correction for background defects
US5465120A Spiral buffer for non-linear editing
US5523756A Analog-to-digital converter with offset reduction loop
US5465268A Digital decoding of biphase-mark encoded serial digital signals
US5408272A Method of producing a composited video image based on depth
GB9320159D0 Swept illumination method and apparatus for three-dimensional volume visualization
GB9316067D0 Disk-based digital video recorder
US5351092A Synchronization of digital audio with digital video
US5313304A Chroma keyer with fringe control offset
GB9307091D0 Auto-translating recursive effects apparatus and method
GB9518092D0 Circuit for preserving a timing relationship and a circuit for selectively delaying a digital signal