P

Inventor

CAO ZHIHENG

US10 patents
⚠️ This page may combine multiple inventors who share the name “CAO ZHIHENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CAO ZHIHENG

3 patents
US8723610B2May 13, 2014

Voltage controlled oscillator

CAO ZHIHENG5 citations68
US8659419B2Feb 25, 2014

Method and apparatus for preventing person, animals or items from getting lost

CAO ZHIHENG2 citations50
US8493156B2Jul 23, 2013

High amplitude voltage-controlled oscillator with dynamic bias circuit

CAO ZHIHENG1 citations48

QUALCOMM INC

2 patents
US7948312B2May 24, 2011

Multi-bit class-D power amplifier system

QUALCOMM INC8 citations81
US7944309B2May 17, 2011

Transconductance bias circuit, amplifier and method

QUALCOMM INC7 citations81

AVAGO TECH INT SALES PTE LID

1 patent
US10511322B1Dec 17, 2019

High-speed digital transmitter for wireless communication systems

AVAGO TECH INT SALES PTE LID2 citations63

UNIV TEXAS

1 patent
US7595678B2Sep 29, 2009

Switched-capacitor circuit

UNIV TEXAS5 citations61

AMLOGIC SHANGHAI CO LTD

1 patent
US11089184B2Aug 10, 2021

Synchronous modulation method based on embedded player

AMLOGIC SHANGHAI CO LTD1 citations60

TEXAS INSTRUMENTS INC

1 patent
US7746177B2Jun 29, 2010

Self-biased bipolar ring-oscillator phase-locked loops with wide tuning range

TEXAS INSTRUMENTS INC0 citations51

INTELLECTUAL VENTURES HOLDING 40 LLC

1 patent
US8384573B2Feb 26, 2013

Low-power digital-to-analog converter

INTELLECTUAL VENTURES HOLDING 40 LLC0 citations39