Inventor · disambiguated record
John E. Welch
Also filed as: WELCH JOHN · WELCH JOHN E
7 granted patents·1 pending application·140 citations·filing 1998–2018
86Inventor score
Technology areasH04N
Top patents by PatentIndex Score
8 records- 0191US7474357B1Decoding video signals to separate luma and chroma componentsCONEXANT SYSTEMS INC·Filed 2007·Granted Jan 6, 2009·21 cites·6 claims
- 0287US7227585B1Luminance and chrominance separation systemCONEXANT SYSTEMS INC·Filed 2004·Granted Jun 5, 2007·37 cites·8 claims
- 0376US7167213B1Comb filter design for separating luminance and chrominance in video signalsCONEXANT SYSTEMS INC·Filed 2004·Granted Jan 23, 2007·17 cites·36 claims
- 0475US7750976B2Automatic video detectorCONEXANT SYSTEMS INC·Filed 2005·Granted Jul 6, 2010·8 cites·8 claims
- 0569US6175389B1Comb filtered signal separationCONEXANT SYSTEMS INC·Filed 1999·Granted Jan 16, 2001·38 cites·22 claims
- 0654US6055024AAdaptive method for Y-C separation in video signalsROCKWELL SEMICONDUCTOR SYS INC·Filed 1998·Granted Apr 25, 2000·19 cites·25 claims
- 0738US8072547B2Comb filter that utilizes host memoryWELCH JOHN E·Filed 2006·Granted Dec 6, 2011·0 cites·25 claims
- 0836US2019313026A1Multi-context real time inline image signal processingQUALCOMM INC·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →