Assignee
QUANTEL LTD
112 granted patents·4 pending applications·3,476 citations·filing 1974–2013
Top patents by PatentIndex Score
116 records- 0197US4602286AVideo processing for composite imagesQUANTEL LTD·Filed 1983·Granted Jul 22, 1986·170 cites·19 claims
- 0294US5276787AElectronic graphic systemQUANTEL LTD·Filed 1990·Granted Jan 4, 1994·150 cites·36 claims
- 0394US4774583AVideo signal processing systemsQUANTEL LTD·Filed 1985·Granted Sep 27, 1988·133 cites·13 claims
- 0494US4524421AComputerized graphics system and method using an electronically synthesized paletteQUANTEL LTD·Filed 1982·Granted Jun 18, 1985·127 cites·26 claims
- 0593US5459529AVideo processing for composite imagesQUANTEL LTD·Filed 1989·Granted Oct 17, 1995·108 cites·31 claims
- 0693US4360831AMultiple image digital processing systemQUANTEL LTD·Filed 1980·Granted Nov 23, 1982·89 cites·17 claims
- 0792US4172264AControl arrangement for video synchronizersQUANTEL LTD·Filed 1978·Granted Oct 23, 1979·56 cites·10 claims
- 0891US5808628AElectronic video processing systemQUANTEL LTD·Filed 1995·Granted Sep 15, 1998·73 cites·25 claims
- 0991US4563703AVideo processing systemsQUANTEL LTD·Filed 1983·Granted Jan 7, 1986·53 cites·12 claims
- 1089US5479210AVideo image processing system having variable data compressionQUANTEL LTD·Filed 1994·Granted Dec 26, 1995·120 cites·11 claims
- 1187US6144391AElectronic video processing systemQUANTEL LTD·Filed 1998·Granted Nov 7, 2000·46 cites·20 claims
- 1287US4199780AVideo drop out compensator incorporating digital field storageQUANTEL LTD·Filed 1978·Granted Apr 22, 1980·35 cites·12 claims
- 1386US4633416AVideo image creation system which simulates drafting toolQUANTEL LTD·Filed 1985·Granted Dec 30, 1986·79 cites·34 claims
- 1486US3973817AInterconnection of circuit boardsQUANTEL LTD·Filed 1975·Granted Aug 10, 1976·47 cites·3 claims
- 1585US7103260B1Video editing systemQUANTEL LTD·Filed 2000·Granted Sep 5, 2006·31 cites·38 claims
- 1685US5649046AVideo processing system with random access framestore for video editingQUANTEL LTD·Filed 1993·Granted Jul 15, 1997·35 cites·19 claims
- 1784US4514818AVideo image creation system which simulates drafting toolQUANTEL LTD·Filed 1981·Granted Apr 30, 1985·73 cites·19 claims
- 1884US4065787ATime base correctorQUANTEL LTD·Filed 1977·Granted Dec 27, 1977·32 cites·10 claims
- 1983US5412402AElectronic graphic systemsQUANTEL LTD·Filed 1991·Granted May 2, 1995·77 cites·30 claims
- 2083US5142616AElectronic graphic systemQUANTEL LTD·Filed 1990·Granted Aug 25, 1992·76 cites·22 claims
- 2182US5940573AAudio editing systemQUANTEL LTD·Filed 1996·Granted Aug 17, 1999·40 cites·14 claims
- 2281US4688106AVideo processing system using multi-head disc storeQUANTEL LTD·Filed 1985·Granted Aug 18, 1987·59 cites·5 claims
- 2380US5216755AVideo image creation system which proportionally mixes previously created image pixel data with currently created dataQUANTEL LTD·Filed 1991·Granted Jun 1, 1993·67 cites·64 claims
- 2479US5418572AMethod of and apparatus for displaying images at different ratesQUANTEL LTD·Filed 1993·Granted May 23, 1995·52 cites·22 claims
- 2579US5361334AData processing and communicationQUANTEL LTD·Filed 1993·Granted Nov 1, 1994·85 cites·31 claims
- 2677US5384667AVideo processing systemQUANTEL LTD·Filed 1993·Granted Jan 24, 1995·46 cites·33 claims
- 2777US4288815AVideo picture processing including movement detectionQUANTEL LTD·Filed 1980·Granted Sep 8, 1981·26 cites·14 claims
- 2876US4667221AVideo editing systems with allowable range for key signal set by detecting the range in a selected areaQUANTEL LTD·Filed 1985·Granted May 19, 1987·41 cites·10 claims
- 2976US3949416ADrop out compensation systemQUANTEL LTD·Filed 1974·Granted Apr 6, 1976·18 cites·17 claims
- 3075US4240104AMeasurement of chroma key area in television systemsQUANTEL LTD·Filed 1979·Granted Dec 16, 1980·19 cites·17 claims
- 3174US5212544AMethod and apparatus for manipulating video image signalsQUANTEL LTD·Filed 1989·Granted May 18, 1993·28 cites·16 claims
- 3274US5006939AVideo editing and processing system with reverse video with forward audio reproductionQUANTEL LTD·Filed 1989·Granted Apr 9, 1991·19 cites·7 claims
- 3373US6445874B1Video processing systemQUANTEL LTD·Filed 1998·Granted Sep 3, 2002·28 cites·20 claims
- 3473US5986665AElectronic graphic systemQUANTEL LTD·Filed 1997·Granted Nov 16, 1999·61 cites·57 claims
- 3572US5077610APreviewing cuts and transformations in an electronic image composition systemQUANTEL LTD·Filed 1990·Granted Dec 31, 1991·47 cites·15 claims
- 3670US5107252AVideo processing systemQUANTEL LTD·Filed 1989·Granted Apr 21, 1992·48 cites·20 claims
- 3769US5404427AVideo signal processing with added probabilistic ditherQUANTEL LTD·Filed 1992·Granted Apr 4, 1995·26 cites·19 claims
- 3869US4829455AGraphics system for video and printed imagesQUANTEL LTD·Filed 1987·Granted May 9, 1989·42 cites·20 claims
- 3968US5825967AVideo processing system with randow access frame store for video editingQUANTEL LTD·Filed 1997·Granted Oct 20, 1998·19 cites·19 claims
- 4068US5175807AVideo signal processing with added probabilistic ditherQUANTEL LTD·Filed 1991·Granted Dec 29, 1992·25 cites·25 claims
- 4168US4757384AVideo signal processing systemsQUANTEL LTD·Filed 1985·Granted Jul 12, 1988·29 cites·10 claims
- 4265US6225978B1Video processing system for movement simulationQUANTEL LTD·Filed 1997·Granted May 1, 2001·39 cites·14 claims
- 4365US4931956AVideo image creation systemsQUANTEL LTD·Filed 1986·Granted Jun 5, 1990·20 cites·20 claims
- 4464US5982364AVideo processing system including frame position indicatorsQUANTEL LTD·Filed 1996·Granted Nov 9, 1999·32 cites·18 claims
- 4564US5175625AVideo image creation systems combining overlapping stamps in a frame period before modifying the imageQUANTEL LTD·Filed 1992·Granted Dec 29, 1992·32 cites·19 claims
- 4664US5090909AVideo graphic simulator systemsQUANTEL LTD·Filed 1990·Granted Feb 25, 1992·34 cites·10 claims
- 4764US4951040AImage transformation processingQUANTEL LTD·Filed 1988·Granted Aug 21, 1990·32 cites·10 claims
- 4863US10747722B2Methods and systems for providing file data for a media fileQUANTEL LTD·Filed 2013·Granted Aug 18, 2020·1 cites·20 claims
- 4963US6262778B1Image processing systemQUANTEL LTD·Filed 1998·Granted Jul 17, 2001·31 cites·21 claims
- 5063US5289566AVideo image creationQUANTEL LTD·Filed 1993·Granted Feb 22, 1994·31 cites·9 claims
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