Inventor · disambiguated record
Yuan Li
Also filed as: LI YUAN · LI YUAN-LU
10 granted patents·3 pending applications·308 citations·filing 1981–2018
89Inventor score
Top patents by PatentIndex Score
13 records- 0196US4390898AScrambling and unscrambling video signals in a pay TV systemNORTHERN TELECOM LTD·Filed 1981·Granted Jun 28, 1983·246 cites·16 claims
- 0293US11132810B2Three-dimensional measurement apparatusHITACHI LTD·Filed 2017·Granted Sep 28, 2021·15 cites·9 claims
- 0382US8964030B2Surveillance camera system having camera malfunction detection function to detect types of failure via block and entire image processingITOH MASAYA·Filed 2011·Granted Feb 24, 2015·11 cites·9 claims
- 0481US10652521B2Stereo camera and image pickup systemHITACHI LTD·Filed 2017·Granted May 12, 2020·3 cites·15 claims
- 0575US9805265B2Surveillance camera control device and video surveillance systemITOH MASAYA·Filed 2012·Granted Oct 31, 2017·3 cites·17 claims
- 0667US4488176AMethod of and apparatus for modifying a video signal to inhibit recording thereofNORTHERN TELECOM LTD·Filed 1981·Granted Dec 11, 1984·17 cites·11 claims
- 0744US2021020295A1Physical function independence support device of physical function and method thereforHITACHI LTD·Filed 2018·Application pending·0 cites
- 0843US9465998B2Object detecting device and object detecting methodHITACHI LTD·Filed 2013·Granted Oct 11, 2016·0 cites·12 claims
- 0943US4535201AGround start detection in telephone loop signalling circuitNORTHERN TELECOM LTD·Filed 1984·Granted Aug 13, 1985·7 cites·3 claims
- 1041US2013050483A1Apparatus, method, and program for video surveillance systemITOH MASAYA·Filed 2012·Application pending·0 cites
- 1141US2012076356A1Anomaly detection apparatusLI YUAN·Filed 2011·Application pending·0 cites
- 1231US4481677AOptical transmitting and receiving apparatusNORTHERN TELECOM LTD·Filed 1983·Granted Nov 6, 1984·4 cites·10 claims
- 1327US4622439ADetection of ground or loop start configuration in telephone loop signalling circuitNORTHERN TELECOM LTD·Filed 1984·Granted Nov 11, 1986·2 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →