Inventor · disambiguated record
David Koo
Also filed as: KOO DAVID · KOO DAVID D
22 granted patents·321 citations·filing 1986–2024
95Inventor score
Files withPHILIPS CORP10KONINKL PHILIPS ELECTRONICS NV5PRATT & WHITNEY CANADA4HUAWEI TECH CO LTD1PANASONIC CORP NORTH AMERICA1
Top patents by PatentIndex Score
22 records- 0189US4665438APicture-in-picture color television receiverPHILIPS CORP·Filed 1986·Granted May 12, 1987·84 cites·7 claims
- 0284US9335904B2Context dependent application/event activation for people with various cognitive ability levelsPANASONIC CORP NORTH AMERICA·Filed 2013·Granted May 10, 2016·9 cites·14 claims
- 0376US4791597AMultiplierless FIR digital filter with two to the Nth power coefficientsPHILIPS CORP·Filed 1986·Granted Dec 13, 1988·26 cites·5 claims
- 0475US6952238B2Method and apparatus for echo cancellation in digital ATV systems using an echo cancellation reference signalKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Oct 4, 2005·14 cites·22 claims
- 0573US6806915B2Method and apparatus for echo cancellation in digital communications using an echo cancellation reference signalKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Oct 19, 2004·12 cites·15 claims
- 0672US4782458AArchitecture for power of two coefficient FIR filterPHILIPS CORP·Filed 1986·Granted Nov 1, 1988·20 cites·16 claims
- 0768US9377842B2Method and apparatus for realizing CPU power conservationHUAWEI TECH CO LTD·Filed 2013·Granted Jun 28, 2016·2 cites·24 claims
- 0863US7010269B2Pre-equalizer structure based on PN511 sequence for terrestrial DTV receptionKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Mar 7, 2006·8 cites·17 claims
- 0961US5121211ASystem for echo cancellation comprising an improved ghost cancellation reference signalPHILIPS CORP·Filed 1991·Granted Jun 9, 1992·39 cites·3 claims
- 1059US5568202ASystem for echo cancellation comprising an improved ghost cancellation reference signalPHILIPS CORP·Filed 1992·Granted Oct 22, 1996·14 cites·3 claims
- 1159US5179444ASystem for echo cancellation comprising an improved ghost cancellation reference signalPHILIPS CORP·Filed 1992·Granted Jan 12, 1993·14 cites·11 claims
- 1258US12352209B1Aircraft engine fluid separation system and methodPRATT & WHITNEY CANADA·Filed 2024·Granted Jul 8, 2025·0 cites·20 claims
- 1358US11585269B1Apparatus for removing particulate matter from bleed gasPRATT & WHITNEY CANADA·Filed 2022·Granted Feb 21, 2023·0 cites·20 claims
- 1457US6898614B2Round-off algorithm without bias for 2's complement dataKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted May 24, 2005·6 cites·20 claims
- 1555US6687317B1Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulationKONINKL PHILIPS ELECTRONICS NV·Filed 2000·Granted Feb 3, 2004·3 cites·4 claims
- 1654US5111298AMethod and apparatus for communication channel identification and signal restorationPHILIPS CORP·Filed 1991·Granted May 5, 1992·27 cites·5 claims
- 1754US5047859AMethod and apparatus for communication channel identification and signal restorationPHILIPS CORP·Filed 1990·Granted Sep 10, 1991·26 cites·14 claims
- 1851US5172232AMethod and apparatus for communication channel identification and signal restorationPHILIPS CORP·Filed 1992·Granted Dec 15, 1992·12 cites·3 claims
- 1946US11821363B1Apparatus for removing particulate matter from bleed gas and gas turbine engine including samePRATT & WHITNEY CANADA·Filed 2022·Granted Nov 21, 2023·0 cites·12 claims
- 2044US11731778B1Apparatus for removing particulate matter from bleed gasPRATT & WHITNEY CANADA·Filed 2022·Granted Aug 22, 2023·0 cites·20 claims
- 2132US5283650ASystem for ghost cancellation comprising an improved GCR signal sequencePHILIPS CORP·Filed 1992·Granted Feb 1, 1994·5 cites·4 claims
- 2230US6133963ASystem for echo cancellation comprising an improved ghost cancellation reference signalPHILIPS ELECTRONICS NA·Filed 1998·Granted Oct 17, 2000·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →