Inventor · disambiguated record
Duc Ngo
Also filed as: NGO DUC · NGO DUC TRONG
27 granted patents·1 pending application·297 citations·filing 1990–2001
96Inventor score
Top patents by PatentIndex Score
28 records- 0189US5675392AMixer with common-mode noise rejectionSONY CORP·Filed 1996·Granted Oct 7, 1997·124 cites·19 claims
- 0269US5105108ADelay circuit with phase locked loop controlZENITH ELECTRONICS CORP·Filed 1990·Granted Apr 14, 1992·22 cites·5 claims
- 0358US5121015AVoltage controlled delay elementZENITH ELECTRONICS CORP·Filed 1990·Granted Jun 9, 1992·14 cites·5 claims
- 0457US5138320ASkew code generator for measuring pulses width using a delay lineZENITH ELECTRONICS CORP·Filed 1990·Granted Aug 11, 1992·13 cites·7 claims
- 0550US5719532AHorizontal lock detectorSONY CORP·Filed 1996·Granted Feb 17, 1998·15 cites·25 claims
- 0648US5815212AVideo overlay circuit for synchronizing and combining analog and digital signalsSONY CORP·Filed 1996·Granted Sep 29, 1998·12 cites·27 claims
- 0746US5864371ALuminance signal generation circuit with single clamp in closed loop configuration and horizontal synchronization pulse generationSONY CORP·Filed 1997·Granted Jan 26, 1999·11 cites·36 claims
- 0845US6028640ACurrent source and threshold voltage generation method and apparatus for HHK video circuitSONY CORP·Filed 1997·Granted Feb 22, 2000·9 cites·26 claims
- 0945US5784122AChroma lock detectorSONY CORP·Filed 1996·Granted Jul 21, 1998·12 cites·13 claims
- 1044US5686974AMethod of and apparatus for providing a high speed video switchSONY CORP·Filed 1996·Granted Nov 11, 1997·10 cites·19 claims
- 1141US5907367AVideo overlay circuit for synchronizing and combining analog and digital signalsSONY CORP·Filed 1998·Granted May 25, 1999·8 cites·25 claims
- 1239US5247229AAdaptive scan control having horizontal scan locked clock systemZENITH ELECTRONICS CORP·Filed 1992·Granted Sep 21, 1993·9 cites·5 claims
- 1339US2002140866A1Method and circuit for an improved adaptive comb filter for separation of chrominance and luminance components from a composite video signalFiled 2001·Application pending·0 cites
- 1438US5689309AControl circuit for mixing two video signalsSONY CORP·Filed 1996·Granted Nov 18, 1997·7 cites·23 claims
- 1535US5774188ABlack and white video signal detector for detecting the absence of a burst signal from a video signalSONY CORP·Filed 1996·Granted Jun 30, 1998·4 cites·21 claims
- 1634US5689308AVertical reset genereator circuitSONY CORP·Filed 1996·Granted Nov 18, 1997·4 cites·18 claims
- 1733US6141064ALuminance signal generation circuit with single clamp in closed loop configurationSONY CORP·Filed 1997·Granted Oct 31, 2000·3 cites·13 claims
- 1833US6018370ACurrent source and threshold voltage generation method and apparatus for HHK video circuitSONY CORP·Filed 1997·Granted Jan 25, 2000·3 cites·25 claims
- 1932US6043850ABurst gate pulse generator circuitSONY CORP·Filed 1997·Granted Mar 28, 2000·2 cites·18 claims
- 2032US6008864AComposite video signal backporch soft-clamp system using servo loopSONY CORP·Filed 1996·Granted Dec 28, 1999·2 cites·19 claims
- 2132US5999221AHorizontal synchronization pulse generation circuitSONY CORP·Filed 1997·Granted Dec 7, 1999·2 cites·22 claims
- 2232US5844621ABurst gate pulse generatorSONY CORP·Filed 1996·Granted Dec 1, 1998·3 cites·17 claims
- 2332US5774185AMethod of and apparatus for removing equalizing pulses without using external pinsSONY CORP·Filed 1996·Granted Jun 30, 1998·3 cites·19 claims
- 2431US6046776ABurst gate pulse generatorSONY CORP·Filed 1998·Granted Apr 4, 2000·2 cites·21 claims
- 2531US5926063AMethod of and apparatus for selectively engaging an internal trap filter and implementing an external trap filter through a single pinSONY CORP·Filed 1997·Granted Jul 20, 1999·1 cites·28 claims
- 2631US5812208ABurst separator and slicer circuitSONY CORP·Filed 1996·Granted Sep 22, 1998·1 cites·14 claims
- 2730US5828254AError regulator circuit for sample and hold phase locked loopsSONY CORP·Filed 1996·Granted Oct 27, 1998·1 cites·14 claims
- 2820US6072341ADriver circuit with pull down npn transistor and gain reductionSONY CORP·Filed 1997·Granted Jun 6, 2000·0 cites·29 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →