Xiaofen Chen

Person

West Linn, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Fault severity check and source identification
- Patent number 7,373,282
- Issue date May 13, 2008
- Tektronix, Inc.
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Visualization of active codes, their spreading factors and power le...
- Patent number 7,184,406
- Issue date Feb 27, 2007
- Tektronix, Inc.
- Kathryn A. Engholm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Enhanced constellation display for VSB television signals
- Patent number 6,741,642
- Issue date May 25, 2004
- Tektronix, Inc.
- Kyle L. Bernard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Calibration for vector network analyzer
- Patent number 6,701,265
- Issue date Mar 2, 2004
- Tektronix, Inc.
- Thomas C. Hill
- G01 - MEASURING TESTING
Information Patent Grant
Measurement receiver demodulator
- Patent number 6,671,334
- Issue date Dec 30, 2003
- Tektronix, Inc.
- Thomas L. Kuntz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Broadband receiver amplitude/phase normalization using a broadband...
- Patent number 6,636,722
- Issue date Oct 21, 2003
- Tektronix, Inc.
- Donald J. Dalebroux
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interference cancellation in antenna test
- Patent number 6,542,112
- Issue date Apr 1, 2003
- Tektronix, Inc.
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reference frequency spur cancellation in synthesized measurement re...
- Patent number 6,384,589
- Issue date May 7, 2002
- Tektronix, Inc.
- Linley F. Gumm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of estimating timing phase and rate offsets in digital data
- Patent number 6,366,629
- Issue date Apr 2, 2002
- Tektronix, Inc.
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of estimating pilot signal phase in a digitally modulated RF...
- Patent number 6,366,621
- Issue date Apr 2, 2002
- Tektronix, Inc.
- Thomas L. Kuntz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
In-service measurement of transmitter nonlinearities
- Patent number 6,275,523
- Issue date Aug 14, 2001
- Textronic, Inc.
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Measurement test set and method for in-service measurements of phas...
- Patent number 6,246,717
- Issue date Jun 12, 2001
- Tektronix, Inc.
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Derivation of composite step-function response
- Publication number 20060190201
- Publication date Aug 24, 2006
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Fault severity check and source identification
- Publication number 20040022195
- Publication date Feb 5, 2004
- Xiaofen Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Calibration for vector network analyzer
- Publication number 20030171886
- Publication date Sep 11, 2003
- Thomas C. Hill
- G01 - MEASURING TESTING
Information Patent Application
Visualization of active codes, their spreading factors and power le...
- Publication number 20030063586
- Publication date Apr 3, 2003
- Kathryn A. Engholm
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Derivation of composite step-function response
- Publication number 20030035376
- Publication date Feb 20, 2003
- Xiaofen Chen
- G01 - MEASURING TESTING

Xiaofen Chen

Person

Patents Grantslast 30 patents

Fault severity check and source identification

Visualization of active codes, their spreading factors and power le...

Enhanced constellation display for VSB television signals

Calibration for vector network analyzer

Measurement receiver demodulator

Broadband receiver amplitude/phase normalization using a broadband...

Interference cancellation in antenna test

Reference frequency spur cancellation in synthesized measurement re...

Method of estimating timing phase and rate offsets in digital data

Method of estimating pilot signal phase in a digitally modulated RF...

In-service measurement of transmitter nonlinearities

Measurement test set and method for in-service measurements of phas...

Patents Applicationslast 30 patents

Derivation of composite step-function response

Fault severity check and source identification

Calibration for vector network analyzer

Visualization of active codes, their spreading factors and power le...

Derivation of composite step-function response