Stephen C. Ma

Person

Mesa, AZ, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for generating digitally modulated signals
- Patent number 6,441,694
- Issue date Aug 27, 2002
- Motorola, Inc.
- Randy L. Turcotte
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low cost beam steering planar array antenna
- Patent number 6,184,827
- Issue date Feb 6, 2001
- Motorola, Inc.
- Deborah Sue Dendy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Combined mechanical scanning and digital beamforming antenna
- Patent number 6,169,522
- Issue date Jan 2, 2001
- Motorola, Inc.
- Stephen Chihhung Ma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and apparatus for high efficiency power amplification
- Patent number 6,100,756
- Issue date Aug 8, 2000
- Motorola, Inc.
- Shay-Ping T. Wang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for robust estimation of directions of arrival...
- Patent number 6,075,484
- Issue date Jun 13, 2000
- Motorola, Inc.
- Sam Mordochai Daniel
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for producing wide null antenna patterns
- Patent number 6,061,023
- Issue date May 9, 2000
- Motorola, Inc.
- Sam Mordochai Daniel
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for amplifying a signal using digital pulse width modulators
- Patent number 6,038,265
- Issue date Mar 14, 2000
- Motorola, Inc.
- Shaowei Pan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multi-substrate radio-frequency circuit
- Patent number 6,002,375
- Issue date Dec 14, 1999
- Motorola, Inc.
- David Warren Corman
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus using a logarithm based processor
- Patent number 5,961,579
- Issue date Oct 5, 1999
- Motorola, Inc.
- ShaoWei Pan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for amplifying a signal using a digital processor
- Patent number 5,920,596
- Issue date Jul 6, 1999
- Motorola, Inc.
- Shaowei Pan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and system for digital beam forming
- Patent number 5,917,447
- Issue date Jun 29, 1999
- Motorola, Inc.
- Shay-Ping T. Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and intelligent digital beam forming system with improved si...
- Patent number 5,856,804
- Issue date Jan 5, 1999
- Motorola, Inc.
- Randy Lee Turcotte
- G01 - MEASURING TESTING
Information Patent Grant
Method and intelligent digital beam forming system for interference...
- Patent number 5,754,138
- Issue date May 19, 1998
- Motorola, Inc.
- Randy Lee Turcotte
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and intelligent digital beam forming system responsive to tr...
- Patent number 5,754,139
- Issue date May 19, 1998
- Motorola, Inc.
- Randy Lee Turcotte
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Position locating and communication system using multiple satellite...
- Patent number 5,619,211
- Issue date Apr 8, 1997
- Motorola, Inc.
- Philip R. Horkin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
CPS transform correlation receiver and method
- Patent number 4,998,111
- Issue date Mar 5, 1991
- Motorola, Inc.
- Stephen C. Ma
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR GENERATING DIGITALLY MODULATED SIGNALS
- Publication number 20020075092
- Publication date Jun 20, 2002
- MOTOROLA, INC.
- Randy L. Turcotte
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Stephen C. Ma

Person

Patents Grantslast 30 patents

Method and apparatus for generating digitally modulated signals

Low cost beam steering planar array antenna

Combined mechanical scanning and digital beamforming antenna

Method and apparatus for high efficiency power amplification

Method and apparatus for robust estimation of directions of arrival...

Method and apparatus for producing wide null antenna patterns

Apparatus for amplifying a signal using digital pulse width modulators

Multi-substrate radio-frequency circuit

Apparatus using a logarithm based processor

Apparatus for amplifying a signal using a digital processor

Method and system for digital beam forming

Method and intelligent digital beam forming system with improved si...

Method and intelligent digital beam forming system for interference...

Method and intelligent digital beam forming system responsive to tr...

Position locating and communication system using multiple satellite...

CPS transform correlation receiver and method

Patents Applicationslast 30 patents

METHOD AND APPARATUS FOR GENERATING DIGITALLY MODULATED SIGNALS