Inventor · disambiguated record
Zhiheng Cao
Also filed as: CAO ZHIHENG
10 granted patents·3 pending applications·31 citations·filing 2007–2020
85Inventor score
Files withCAO ZHIHENG6QUALCOMM INC2AMLOGIC SHANGHAI CO LTD1AVAGO TECH INT SALES PTE LID1INTELLECTUAL VENTURES HOLDING 40 LLC1
Top patents by PatentIndex Score
13 records- 0179US8723610B2Voltage controlled oscillatorCAO ZHIHENG·Filed 2012·Granted May 13, 2014·5 cites·20 claims
- 0274US7948312B2Multi-bit class-D power amplifier systemQUALCOMM INC·Filed 2009·Granted May 24, 2011·8 cites·27 claims
- 0370US11089184B2Synchronous modulation method based on embedded playerAMLOGIC SHANGHAI CO LTD·Filed 2020·Granted Aug 10, 2021·1 cites·14 claims
- 0470US7944309B2Transconductance bias circuit, amplifier and methodQUALCOMM INC·Filed 2009·Granted May 17, 2011·7 cites·25 claims
- 0564US10511322B1High-speed digital transmitter for wireless communication systemsAVAGO TECH INT SALES PTE LID·Filed 2019·Granted Dec 17, 2019·2 cites·20 claims
- 0663US7595678B2Switched-capacitor circuitUNIV TEXAS·Filed 2007·Granted Sep 29, 2009·5 cites·7 claims
- 0755US8493156B2High amplitude voltage-controlled oscillator with dynamic bias circuitCAO ZHIHENG·Filed 2011·Granted Jul 23, 2013·1 cites·19 claims
- 0851US8659419B2Method and apparatus for preventing person, animals or items from getting lostCAO ZHIHENG·Filed 2010·Granted Feb 25, 2014·2 cites·16 claims
- 0949US2013181839A1Method and Apparatus for Energy Efficient and Low Maintenance Cost Wireless Monitoring of Physical Items and Animals from the InternetCAO ZHIHENG·Filed 2012·Application pending·0 cites
- 1041US7746177B2Self-biased bipolar ring-oscillator phase-locked loops with wide tuning rangeTEXAS INSTRUMENTS INC·Filed 2008·Granted Jun 29, 2010·0 cites·25 claims
- 1139US2014125130A1Power Stealing Thermostat Circuit With Over Current ProtectionCAO ZHIHENG·Filed 2014·Application pending·0 cites
- 1239US2014135998A1Method and Apparatus for Energy Efficient Heating and Air Conditioning AutomationCAO ZHIHENG·Filed 2014·Application pending·0 cites
- 1336US8384573B2Low-power digital-to-analog converterINTELLECTUAL VENTURES HOLDING 40 LLC·Filed 2008·Granted Feb 26, 2013·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →