Zhiheng Cao

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Dallas, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Low-power digital-to-analog converter
- Patent number 8,384,573
- Issue date Feb 26, 2013
- Intellectual Ventures Holding 40 LLC
- Xiaohong Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multi-bit class-D power amplifier system
- Patent number 7,948,312
- Issue date May 24, 2011
- Qualcomm, Incorporated
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Transconductance bias circuit, amplifier and method
- Patent number 7,944,309
- Issue date May 17, 2011
- Qualcomm, Incorporated
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Self-biased bipolar ring-oscillator phase-locked loops with wide tu...
- Patent number 7,746,177
- Issue date Jun 29, 2010
- Texas Instruments Incorporated
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switched-capacitor circuit
- Patent number 7,595,678
- Issue date Sep 29, 2009
- The Board of Regents, University of Texas System
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
MULTI-BIT CLASS-D POWER AMPLIFIER SYSTEM
- Publication number 20100289578
- Publication date Nov 18, 2010
- QUALCOMM Incorporated
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
TRANSCONDUCTANCE BIAS CIRCUIT, AMPLIFIER AND METHOD
- Publication number 20100237950
- Publication date Sep 23, 2010
- QUALCOMM Incorporated
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SELF-BIASED BIPOLAR RING-OSCILLATOR PHASE-LOCKED LOOPS WITH WIDE TU...
- Publication number 20090322431
- Publication date Dec 31, 2009
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
LOW-POWER DIGITAL-TO-ANALOG CONVERTER
- Publication number 20090016544
- Publication date Jan 15, 2009
- Xiaohong Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Switched-Capacitor Circuit
- Publication number 20080061858
- Publication date Mar 13, 2008
- Zhiheng Cao
- H03 - BASIC ELECTRONIC CIRCUITRY