Assignee
PROLIFIC TECHNOLOGY INC
TW·69 granted patents·26 pending applications·550 citations·filing 2001–2025
Top patents by PatentIndex Score
95 records- 0190US6631098B2Dual-mode MP3 playerPROLIFIC TECHNOLOGY INC·Filed 2001·Granted Oct 7, 2003·80 cites·5 claims
- 0288US6737860B2System for controlling rotational speed of fan according to reference clock frequencyPROLIFIC TECHNOLOGY INC·Filed 2002·Granted May 18, 2004·51 cites·13 claims
- 0383US7170439B1Self-calibration circuit for capacitance mismatchPROLIFIC TECHNOLOGY INC·Filed 2006·Granted Jan 30, 2007·40 cites·18 claims
- 0483US7075267B1Space vector-based current controlled PWM inverter for motor drivesPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Jul 11, 2006·46 cites·11 claims
- 0583US6522093B1Method for driving a brushless DC motorPROLIFIC TECHNOLOGY INC·Filed 2001·Granted Feb 18, 2003·34 cites·22 claims
- 0682US6862643B2USB compound device operates a plurality of devices by using the same USB logic circuit and the method for implementation thereofPROLIFIC TECHNOLOGY INC·Filed 2002·Granted Mar 1, 2005·46 cites·31 claims
- 0781US7148720B2Impedance matching circuit and methodPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Dec 12, 2006·24 cites·12 claims
- 0880US10998147B2Switch device capable of automatically detecting and adjusting zero cross pointPROLIFIC TECHNOLOGY INC·Filed 2020·Granted May 4, 2021·1 cites·13 claims
- 0980US7898210B2To obtain the three-phase current via adjusting width of pulses with single DC-link current sensorPROLIFIC TECHNOLOGY INC·Filed 2008·Granted Mar 1, 2011·19 cites·16 claims
- 1078US7924209B2Self-calibration circuit and method for capacitorsPROLIFIC TECHNOLOGY INC·Filed 2009·Granted Apr 12, 2011·14 cites·9 claims
- 1178US7761647B2Storage device with automatic interface-switching functionPROLIFIC TECHNOLOGY INC·Filed 2007·Granted Jul 20, 2010·10 cites·18 claims
- 1278US7254650B2Method for determining transmitting mode of a memory card with multiple interface functionsPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Aug 7, 2007·36 cites·6 claims
- 1374US7194057B2System and method of oversampling high speed clock/data recoveryPROLIFIC TECHNOLOGY INC·Filed 2005·Granted Mar 20, 2007·7 cites·13 claims
- 1473US10372652B2USB hubPROLIFIC TECHNOLOGY INC·Filed 2018·Granted Aug 6, 2019·2 cites·9 claims
- 1570US7895386B2USB interface provided with host/device function and its control methodPROLIFIC TECHNOLOGY INC·Filed 2007·Granted Feb 22, 2011·6 cites·15 claims
- 1670US7649329B2Method and circuit for controlling motor and brushless motor system using the samePROLIFIC TECHNOLOGY INC·Filed 2007·Granted Jan 19, 2010·8 cites·17 claims
- 1768US9772358B2Electrical energy transferring device showing power consumption/charging statusPROLIFIC TECHNOLOGY INC·Filed 2015·Granted Sep 26, 2017·1 cites·7 claims
- 1868US7906952B2Voltage regulatorPROLIFIC TECHNOLOGY INC·Filed 2009·Granted Mar 15, 2011·8 cites·24 claims
- 1966US7596655B2Flash storage system with data storage securityPROLIFIC TECHNOLOGY INC·Filed 2006·Granted Sep 29, 2009·5 cites·25 claims
- 2065US2026078763A1Smart fan compatible with various control boxPROLIFIC TECHNOLOGY INC·Filed 2025·Application pending·0 cites
- 2164US12478239B2Device for conducting motor recognition and protection and vacuum cleaner using the samePROLIFIC TECHNOLOGY INC·Filed 2023·Granted Nov 25, 2025·0 cites·14 claims
- 2261US7725626B2Multi-media KVM switchPROLIFIC TECHNOLOGY INC·Filed 2007·Granted May 25, 2010·4 cites·7 claims
- 2361US7310739B2Universal serial bus and method for transmitting serial clock and serial data signals during power-saving modePROLIFIC TECHNOLOGY INC·Filed 2004·Granted Dec 18, 2007·8 cites·8 claims
- 2460US12417204B2Serial-bus system provided with dynamic address assignment and its method for controlling the samePROLIFIC TECHNOLOGY INC·Filed 2023·Granted Sep 16, 2025·0 cites·18 claims
- 2560US9293108B2Transmission apparatus and system of using the samePROLIFIC TECHNOLOGY INC·Filed 2013·Granted Mar 22, 2016·1 cites·8 claims
- 2659US7526014B2Correlator for spread spectrum receiverPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Apr 28, 2009·5 cites·12 claims
- 2759US6956726B2Power protection devicePROLIFIC TECHNOLOGY INC·Filed 2002·Granted Oct 18, 2005·10 cites·8 claims
- 2858US7441165B2Read-only memory and operational control method thereofPROLIFIC TECHNOLOGY INC·Filed 2005·Granted Oct 21, 2008·5 cites·6 claims
- 2957US7240369B2Plug and play device and access control method thereforPROLIFIC TECHNOLOGY INC·Filed 2003·Granted Jul 3, 2007·7 cites·29 claims
- 3057US6707332B1Clock generating circuit and method thereofPROLIFIC TECHNOLOGY INC·Filed 2003·Granted Mar 16, 2004·7 cites·24 claims
- 3156US6617818B2Voltage independent PWM base frequency generating methodPROLIFIC TECHNOLOGY INC·Filed 2001·Granted Sep 9, 2003·8 cites·20 claims
- 3256US2026075033A1Method for Inter-Integrated Circuit (I2C) Address AllocationPROLIFIC TECHNOLOGY INC·Filed 2024·Application pending·0 cites
- 3355US9210086B2Transmission system capable of dynamically setting transmission profile and its control methodPROLIFIC TECHNOLOGY INC·Filed 2013·Granted Dec 8, 2015·1 cites·16 claims
- 3455US6810202B2Apparatus for controlling rotational speed of motorPROLIFIC TECHNOLOGY INC·Filed 2002·Granted Oct 26, 2004·12 cites·31 claims
- 3554US7117589B2Method of installing a plug and play device driverPROLIFIC TECHNOLOGY INC·Filed 2003·Granted Oct 10, 2006·4 cites·24 claims
- 3653US12322988B2Device and method for achieving dynamic charging and balance of battery cells and rechargeable battery devicePROLIFIC TECHNOLOGY INC·Filed 2022·Granted Jun 3, 2025·0 cites·7 claims
- 3753US7772921B2Filter and filtering methodPROLIFIC TECHNOLOGY INC·Filed 2009·Granted Aug 10, 2010·3 cites·20 claims
- 3853US7395155B2Global positioning system receiver and correlating circuit thereofPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Jul 1, 2008·9 cites·5 claims
- 3953US7250735B2Driving circuit of a fanPROLIFIC TECHNOLOGY INC·Filed 2006·Granted Jul 31, 2007·3 cites·6 claims
- 4051US12468648B2Bridge device having data monitoring function and USB to UART converter having the samePROLIFIC TECHNOLOGY INC·Filed 2024·Granted Nov 11, 2025·0 cites·20 claims
- 4151US10908189B2Current sensing device and methodPROLIFIC TECHNOLOGY INC·Filed 2018·Granted Feb 2, 2021·0 cites·13 claims
- 4250US2020218681A1Method for automatically identifying host operating systemsPROLIFIC TECHNOLOGY INC·Filed 2020·Application pending·0 cites
- 4350US2025028666A1DEVICE CAPABLE OF DIRECTLY DIVERTING DATA THROUGH UART PORT AND USB to UART CONVERTER HAVING THE SAMEPROLIFIC TECHNOLOGY INC·Filed 2024·Application pending·0 cites
- 4449US11216401B2USB host-to-USB host chipPROLIFIC TECHNOLOGY INC·Filed 2020·Granted Jan 4, 2022·0 cites·6 claims
- 4548US11221605B2Intelligent fan control system with interface compatibilityPROLIFIC TECHNOLOGY INC·Filed 2020·Granted Jan 11, 2022·0 cites·25 claims
- 4648US2004002314A1Integrating apparatusPROLIFIC TECHNOLOGY INC·Filed 2003·Application pending·0 cites
- 4747US11566629B2Device for real-time self diagnosis of a fan and the method using the samePROLIFIC TECHNOLOGY INC·Filed 2020·Granted Jan 31, 2023·0 cites·22 claims
- 4847US2008170811A1Image capture apparatusPROLIFIC TECHNOLOGY INC·Filed 2007·Application pending·0 cites
- 4946US10082543B2Non-contact intelligent battery sensing system and methodPROLIFIC TECHNOLOGY INC·Filed 2017·Granted Sep 25, 2018·0 cites·14 claims
- 5046US7124235B2USB apparatus with switchable host/hub functions and control method thereofPROLIFIC TECHNOLOGY INC·Filed 2004·Granted Oct 17, 2006·4 cites·4 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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