Inventor · disambiguated record
Keith Lucas
Also filed as: LUCAS KEITH · LUCAS KEITH V
22 granted patents·3 pending applications·3,005 citations·filing 1983–2012
97Inventor score
Top patents by PatentIndex Score
25 records- 0199US5400401ASystem and method for transmitting a plurality of digital servicesSCIENTIFIC ATLANTA·Filed 1992·Granted Mar 21, 1995·633 cites·52 claims
- 0299US4885775AInformation display scheme for subscribers of a subscription television systemSCIENTIFIC ATLANTA·Filed 1984·Granted Dec 5, 1989·323 cites·18 claims
- 0397US4890321ACommunications format for a subscription television system permitting transmission of individual text messages to subscribersSCIENTIFIC ATLANTA·Filed 1988·Granted Dec 26, 1989·482 cites·13 claims
- 0497US4829569ACommunication of individual messages to subscribers in a subscription television systemSCIENTIFIC ATLANTA·Filed 1986·Granted May 9, 1989·512 cites·7 claims
- 0596US4719642AError detection and concealment using predicted signal valuesSCIENTIFIC ATLANTA·Filed 1985·Granted Jan 12, 1988·70 cites·18 claims
- 0695US4866770AMethod and apparatus for communication of video, audio, teletext, and data to groups of decoders in a communication systemSCIENTIFIC ATLANTA·Filed 1986·Granted Sep 12, 1989·208 cites·25 claims
- 0795US4642688AMethod and apparatus for creating encrypted and decrypted television signalsSCIENTIFIC ATLANTA·Filed 1985·Granted Feb 10, 1987·169 cites·24 claims
- 0892US4890319AMethod for controlling copying of protected information transmitted over a communications linkSCIENT ATLANTIC INC·Filed 1988·Granted Dec 26, 1989·150 cites·3 claims
- 0989US5231485AMethod and apparatus for transforming between fixed-rate vector quantized data and variable rate vector quantized dataSCIENTIFIC ATLANTA·Filed 1991·Granted Jul 27, 1993·97 cites·53 claims
- 1086US5237413AMotion filter for digital television systemSCIENTIFIC ATLANTA·Filed 1991·Granted Aug 17, 1993·74 cites·24 claims
- 1185US4652903AFrequency generation for multiplexed analog component color television encoding and decodingSCIENTIFIC ATLANTA·Filed 1984·Granted Mar 24, 1987·37 cites·16 claims
- 1284US5553141AEncryption and decryption (scrambling and unscrambling) of video signalsSCIENTIFIC ATLANTA·Filed 1983·Granted Sep 3, 1996·38 cites·55 claims
- 1374US6546113B1Method and apparatus for video watermarkingLEITCH TECHNOLOGY INTERNAT INC·Filed 1999·Granted Apr 8, 2003·58 cites·31 claims
- 1472US4989091AScan converter for a high definition television systemSCIENTIFIC ATLANTA·Filed 1989·Granted Jan 29, 1991·25 cites·15 claims
- 1571US5361098AMethods and apparatus for generating a picture-in-picture digital television frame by inserting a mean-only frame into a full-size frameSCIENTIFIC ATLANTA·Filed 1992·Granted Nov 1, 1994·32 cites·12 claims
- 1666US5204899AVector quantization method employing mirrored input vectors to search codebookSCIENTIFIC ATLANTA·Filed 1991·Granted Apr 20, 1993·26 cites·20 claims
- 1764US5235418AMethod and apparatus for low frequency removal in vector quantizationSCIENTIFIC ATLANTA·Filed 1991·Granted Aug 10, 1993·23 cites·46 claims
- 1862US5247348AMethod for selecting reproduction quality of transmitted vector quantized dataSCIENTIFIC ATLANTA·Filed 1991·Granted Sep 21, 1993·21 cites·36 claims
- 1960US4866519AMethod and apparatus for increasing the vertical definition of a transmitted television signalSCIENTIFIC ATLANTA·Filed 1987·Granted Sep 12, 1989·16 cites·22 claims
- 2050US2005198114A1Communication system and protocol for an interactive portable deviceFiled 2004·Application pending·0 cites
- 2144US9199170B2Pass-structured game platformLUCAS KEITH V·Filed 2012·Granted Dec 1, 2015·0 cites·9 claims
- 2243US5053859AHigh definition B-MAC television signal transmission systemSCIENTIFIC ATLANTA·Filed 1988·Granted Oct 1, 1991·7 cites·22 claims
- 2337US4965661AMethod and apparatus for increasing the definiton of an NTSC video signal using an augmentation channelSCIENTIFIC ATLANTA·Filed 1988·Granted Oct 23, 1990·4 cites·22 claims
- 2433US2011289432A1Community-Based Moderator System for Online ContentLUCAS KEITH V·Filed 2010·Application pending·0 cites
- 2533US2013137518A1System for Pre-Caching Game Content Based on Game Selection ProbabilityLUCAS KEITH V·Filed 2011·Application pending·0 cites
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