Keming J. Chen

Person

San Diego, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Radio frequency switch for use in satellite receivers
- Patent number 8,174,337
- Issue date May 8, 2012
- General Instrument Corporation
- Keming J. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Control system for controlling an output signal power level of a wi...
- Patent number 7,177,606
- Issue date Feb 13, 2007
- General Instrument Corporation
- Keming Joseph Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulation system for modulating data onto a carrier signal with of...
- Patent number 7,167,528
- Issue date Jan 23, 2007
- General Instrument Corporation
- Keming Joseph Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Automatic detection of HDTV video format
- Patent number 6,108,046
- Issue date Aug 22, 2000
- General Instrument Corporation
- Siu-Wai Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct digital synthesis frequency-agile QPSK modulator
- Patent number 5,784,413
- Issue date Jul 21, 1998
- General Instrument Corporation
- Keming Joseph Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal-seeking tuning system with a seaching mode activated by the...
- Patent number 4,624,014
- Issue date Nov 18, 1986
- RCA Corporation
- Keming J. Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
On-screen display
- Patent number 4,549,218
- Issue date Oct 22, 1985
- RCA Corporation
- Ronald R. Norley
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Television receiver with high voltage protection circuit
- Patent number 4,544,954
- Issue date Oct 1, 1985
- RCA Corporation
- Keming J. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Video sync validity detector
- Patent number 4,543,614
- Issue date Sep 24, 1985
- RCA Corporaton
- Keming J. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
RADIO FREQUENCY SWITCH FOR USE IN SATELLITE RECEIVERS
- Publication number 20120064823
- Publication date Mar 15, 2012
- General Instrument Corporation
- Keming J. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Control system for controlling an output signal power level of a wi...
- Publication number 20040092237
- Publication date May 13, 2004
- Keming Joseph Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Modulation system for modulating data onto a carrier signal with of...
- Publication number 20030227982
- Publication date Dec 11, 2003
- Keming Joseph Chen
- H03 - BASIC ELECTRONIC CIRCUITRY

Keming J. Chen

Person

Patents Grantslast 30 patents

Radio frequency switch for use in satellite receivers

Control system for controlling an output signal power level of a wi...

Modulation system for modulating data onto a carrier signal with of...

Automatic detection of HDTV video format

Direct digital synthesis frequency-agile QPSK modulator

Signal-seeking tuning system with a seaching mode activated by the...

On-screen display

Television receiver with high voltage protection circuit

Video sync validity detector

Patents Applicationslast 30 patents

RADIO FREQUENCY SWITCH FOR USE IN SATELLITE RECEIVERS

Control system for controlling an output signal power level of a wi...

Modulation system for modulating data onto a carrier signal with of...