Assignee
HOLTEK SEMICONDUCTOR INC
TW·59 granted patents·39 pending applications·414 citations·filing 1997–2020
Top patents by PatentIndex Score
98 records- 0183US7636014B1Digitally programmable transconductance amplifier and mixed-signal circuit using the sameHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Dec 22, 2009·13 cites·12 claims
- 0283US7612548B2Low drop-out voltage regulator with high-performance linear and load regulationHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Nov 3, 2009·14 cites·5 claims
- 0382US8004447B2Successive approximation analog to digital converter and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2010·Granted Aug 23, 2011·14 cites·10 claims
- 0479US7579889B2Delay lock loop and phase angle generatorHOLTEK SEMICONDUCTOR INC·Filed 2007·Granted Aug 25, 2009·9 cites·4 claims
- 0576US7532058B2Fuse option circuitHOLTEK SEMICONDUCTOR INC·Filed 2007·Granted May 12, 2009·9 cites·7 claims
- 0675US7315216B2Adjusting frequency device of built-in oscillator for USB interface and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2006·Granted Jan 1, 2008·10 cites·26 claims
- 0774US8379041B2Method for extending duration of a display apparatus having brightness compensation and apparatus realizing the sameHOLTEK SEMICONDUCTOR INC·Filed 2009·Granted Feb 19, 2013·4 cites·22 claims
- 0872US7777555B2Temperature compensating circuit and methodHOLTEK SEMICONDUCTOR INC·Filed 2009·Granted Aug 17, 2010·13 cites·20 claims
- 0972US7330802B2Method for calibrating parameter of integrated circuitHOLTEK SEMICONDUCTOR INC·Filed 2006·Granted Feb 12, 2008·8 cites·17 claims
- 1071US7940876B2USB frequency synchronizing apparatus and method of synchronizing frequenciesHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted May 10, 2011·6 cites·13 claims
- 1167US7728750B2Display panel driverHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Jun 1, 2010·2 cites·4 claims
- 1266US5953697AGain estimation scheme for LPC vocoders with a shape index based on signal envelopesHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Sep 14, 1999·58 cites·6 claims
- 1366US5942942ADifferential amplifier with double output stagesHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Aug 24, 1999·20 cites·5 claims
- 1464US7936131B2AC power feedback control deviceHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted May 3, 2011·1 cites·17 claims
- 1563US10753899B2Whole blood measurement method associated to hematocritHOLTEK SEMICONDUCTOR INC·Filed 2018·Granted Aug 25, 2020·0 cites·10 claims
- 1663US7355152B2Power control apparatus and method for electric cookersHOLTEK SEMICONDUCTOR INC·Filed 2006·Granted Apr 8, 2008·2 cites·2 claims
- 1762US7859812B2Power IC with an over-current protection circuit and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Dec 28, 2010·7 cites·15 claims
- 1861US7356141B2Baud rate modulation encoding/decoding method and device for remote controllerHOLTEK SEMICONDUCTOR INC·Filed 2003·Granted Apr 8, 2008·7 cites·13 claims
- 1960US7639074B2Linear programmable switch-capacitance gain amplifierHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Dec 29, 2009·4 cites·16 claims
- 2058US7348817B2Circuit and method for generating circuit power on reset signalHOLTEK SEMICONDUCTOR INC·Filed 2006·Granted Mar 25, 2008·5 cites·18 claims
- 2158US5977893AMethod for testing charge redistribution type digital-to-analog and analog-to-digital convertersHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Nov 2, 1999·22 cites·12 claims
- 2257US7816957B2Power on reset generating circuit and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Oct 19, 2010·2 cites·18 claims
- 2356US6211786B1Battery-free circuit device for RF identifying tagHOLTEK SEMICONDUCTOR INC·Filed 1999·Granted Apr 3, 2001·23 cites·15 claims
- 2454US10151721B2Whole blood measurement method associated to hematocrit (HCT) and whole blood measurement circuit thereofHOLTEK SEMICONDUCTOR INC·Filed 2016·Granted Dec 11, 2018·0 cites·6 claims
- 2554US6020833AMethod and interface circuit for scanning keys and external resistors in keypadHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Feb 1, 2000·19 cites·11 claims
- 2653US7629758B2Driving apparatus and a driving method for a single phase motorHOLTEK SEMICONDUCTOR INC·Filed 2007·Granted Dec 8, 2009·4 cites·9 claims
- 2751US7453762B1Apparatus and method of auto frequency calibration for transducerHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Nov 18, 2008·1 cites·18 claims
- 2851US6009207AMethod for speeding up JPEG quantization operations in image compressionHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Dec 28, 1999·21 cites·3 claims
- 2950US7974348B2Two-wire serial handshaking communication interface and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Jul 5, 2011·1 cites·17 claims
- 3049US7872509B2Delay lock loop and phase angle generatorHOLTEK SEMICONDUCTOR INC·Filed 2009·Granted Jan 18, 2011·1 cites·5 claims
- 3149US7339480B2Power processing interface for passive radio frequency identification systemHOLTEK SEMICONDUCTOR INC·Filed 2005·Granted Mar 4, 2008·1 cites·20 claims
- 3249US7005905B2Stable timing clock circuitHOLTEK SEMICONDUCTOR INC·Filed 2004·Granted Feb 28, 2006·5 cites·13 claims
- 3349US2008157683A1Vacuum fluorescent display and filament driving method thereofHOLTEK SEMICONDUCTOR INC·Filed 2007·Application pending·0 cites
- 3448US8040193B2Oscillation adjusting circuit and methodHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Oct 18, 2011·1 cites·20 claims
- 3548US7656737B2Pumping circuit for multiple nonvolatile memoriesHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Feb 2, 2010·2 cites·9 claims
- 3648US6148418AComputer environment monitor deviceHOLTEK SEMICONDUCTOR INC·Filed 1998·Granted Nov 14, 2000·23 cites·20 claims
- 3748US2007286414A1Baud rate modulation encoding/decoding method and device for remote controllerHOLTEK SEMICONDUCTOR INC·Filed 2007·Application pending·0 cites
- 3847US6526536B1Apparatus within an integrated circuit for preventing the integrated circuit from erroneously entering a test mode operationHOLTEK SEMICONDUCTOR INC·Filed 1997·Granted Feb 25, 2003·15 cites·17 claims
- 3946US7863879B2AC signal producer and method thereofHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Jan 4, 2011·1 cites·15 claims
- 4046US7764200B2Capacitive button deviceHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Jul 27, 2010·2 cites·7 claims
- 4146US7669025B2Apparatus for security of accessing data and method of the sameHOLTEK SEMICONDUCTOR INC·Filed 2007·Granted Feb 23, 2010·0 cites·17 claims
- 4246US2010066342A1Control circuit for single chip icHOLTEK SEMICONDUCTOR INC·Filed 2008·Application pending·0 cites
- 4345US5999443ALow-voltage triple-well non-volatile semiconductor memoryHOLTEK SEMICONDUCTOR INC·Filed 1998·Granted Dec 7, 1999·10 cites·4 claims
- 4445US2009129598A1Microprocessor locking circuit and locking method therefor with locking functionHOLTEK SEMICONDUCTOR INC·Filed 2008·Application pending·0 cites
- 4545US2008183980A1Method and system for locking data of program memory embedded in microcontrollerHOLTEK SEMICONDUCTOR INC·Filed 2007·Application pending·0 cites
- 4644US2007075986A1Proximity sensing device and sensing method thereofHOLTEK SEMICONDUCTOR INC·Filed 2006·Application pending·0 cites
- 4743US2009018789A1Image auto-calibration method and systemHOLTEK SEMICONDUCTOR INC·Filed 2008·Application pending·0 cites
- 4842US7800025B2Apparatus for controlling an electrical cooker and related method thereofHOLTEK SEMICONDUCTOR INC·Filed 2007·Granted Sep 21, 2010·1 cites·6 claims
- 4942US7663425B2Fuse option circuitHOLTEK SEMICONDUCTOR INC·Filed 2008·Granted Feb 16, 2010·0 cites·7 claims
- 5042US6653692B2Double access path mask ROM cell structureHOLTEK SEMICONDUCTOR INC·Filed 2002·Granted Nov 25, 2003·4 cites·12 claims
Showing the top 50 of 98 patent records by PatentIndex Score.
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