Inventor · disambiguated record
Francois Le Carvennec
Also filed as: LE CARVENNEC FRANCOIS · LE CARVENNEC FRANÇOIS
18 granted patents·359 citations·filing 1974–2001
95Inventor score
Top patents by PatentIndex Score
18 records- 0191US4387452AOptical device for the recording and reading of data media and optical memory system incorporating such a deviceTHOMSON CSF·Filed 1981·Granted Jun 7, 1983·46 cites·18 claims
- 0288US4157931AProcess for producing information carrying discsTHOMSON BRANDT·Filed 1978·Granted Jun 12, 1979·43 cites·9 claims
- 0386US4001635AElectro-optical converter and an optical information recording system comprising such a converterTHOMSON CSF·Filed 1975·Granted Jan 4, 1977·33 cites·6 claims
- 0484US4037251AData carrier optically read out by transmission, and method of manufacturing said data carrierTHOMSON BRANDT·Filed 1975·Granted Jul 19, 1977·25 cites·15 claims
- 0580US4551733AProtected optical disc comprising a flexible closure elementTHOMSON CSF·Filed 1983·Granted Nov 5, 1985·23 cites·8 claims
- 0680US4038524AData carrier optically readable by transmission and method of manufacturing such a data carrierTHOMSON BRANDT·Filed 1975·Granted Jul 26, 1977·29 cites·21 claims
- 0778US4142208ASystem for automatically correcting the duty factor of the carrier wave arising from reading-out a data carrierTHOMSON BRANDT·Filed 1977·Granted Feb 27, 1979·23 cites·4 claims
- 0876US5680386AOptical method and system for writing/reading information on a recording mediumTHOMSON CSF·Filed 1994·Granted Oct 21, 1997·22 cites·40 claims
- 0975US4068258AMethod for compressing then expanding a television signalTHOMSON BRANDT·Filed 1976·Granted Jan 10, 1978·22 cites·8 claims
- 1071US5475672AVariable-length information recording with reference marks for time reference during information readingTHOMSON CSF·Filed 1993·Granted Dec 12, 1995·20 cites·15 claims
- 1167US6091697AOptical recording medium having a plurality of recording layersTHOMSON CSF·Filed 1996·Granted Jul 18, 2000·19 cites·16 claims
- 1266US4001564ACommunication system for disseminating coded digital data in analogue form utilizing an orthogonal transformationTHOMSON CSF·Filed 1974·Granted Jan 4, 1977·14 cites·10 claims
- 1353US6738331B2Copy-protected optical disk and protection process for such diskTHOMSON CSF·Filed 2001·Granted May 18, 2004·4 cites·26 claims
- 1453US4868804AOptical memory system which uses a different illumination mode when scanning reserved areasTHOMSON ALCATEL GIGADISC·Filed 1986·Granted Sep 19, 1989·9 cites·13 claims
- 1547US6452886B1Antihacking optical recording disc and method for reading sameTHOMSON CSF·Filed 1999·Granted Sep 17, 2002·7 cites·11 claims
- 1647US5864526AOptical focussing adjustment deviceTHOMSON CSF·Filed 1996·Granted Jan 26, 1999·8 cites·20 claims
- 1740US4253115AProcess for the transmission of an audiofrequency analog signal during line-frame synchronization intervals of a television signal and apparatus for performing this processTHOMSON CSF·Filed 1979·Granted Feb 24, 1981·7 cites·11 claims
- 1833US4001563ACommunication system for disseminating coded digital data in analogue form utilizing an orthogonal transformationTHOMSON CSF·Filed 1975·Granted Jan 4, 1977·5 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →