Dennis R. Schaeffer

Person

Buffalo Grove, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for producing delay of a carrier signal for im...
- Patent number 5,953,659
- Issue date Sep 14, 1999
- Motorola, Inc.
- Michael D. Kotzin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for mitigating excess time delay in a wireless...
- Patent number 5,819,181
- Issue date Oct 6, 1998
- Motorola, Inc.
- Michael D. Kotzin
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for selecting two antennas from which to recei...
- Patent number 5,740,526
- Issue date Apr 14, 1998
- Jeffrey D. Bonta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of topographically displaying selected information in a cell...
- Patent number 5,490,285
- Issue date Feb 6, 1996
- Motorola, Inc.
- Mark T. Ahlenius
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Communication system resource allocation method
- Patent number 5,455,821
- Issue date Oct 3, 1995
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hopped-carrier dynamic frequency reuse
- Patent number 5,257,398
- Issue date Oct 26, 1993
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multiple user spread-spectrum communication system
- Patent number 5,210,771
- Issue date May 11, 1993
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cellular radiotelephone communications system
- Patent number 5,073,971
- Issue date Dec 17, 1991
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal routing system
- Patent number 5,048,116
- Issue date Sep 10, 1991
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reuse groups for scan monitoring in digital cellular systems
- Patent number 4,866,710
- Issue date Sep 12, 1989
- Motorola, Inc.
- Dennis R. Schaeffer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cellular radiotelephone system having colocated base sites
- Patent number 4,775,998
- Issue date Oct 4, 1988
- Motorola, Inc.
- Kenneth A. Felix
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
VOX remote unit control in a cellular system
- Patent number 4,751,725
- Issue date Jun 14, 1988
- Motorola, Inc.
- Jeffrey D. Bonta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scanning receiver allocation method and apparatus for cellular radi...
- Patent number 4,726,050
- Issue date Feb 16, 1988
- Motorola, Inc.
- Barry J. Menich
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Cellular voice and data radiotelephone system
- Patent number 4,654,867
- Issue date Mar 31, 1987
- Motorola, Inc.
- Gerald P. Labedz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR ALTERING MOBILE DEVICE BEHAVIOR BASED ON R...
- Publication number 20080160984
- Publication date Jul 3, 2008
- MOTOROLA, INC.
- Stanley J. Benes
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for pseudo-random noise offset reuse in a mult...
- Publication number 20030087640
- Publication date May 8, 2003
- Ron Rotstein
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Dennis R. Schaeffer

Person

Patents Grantslast 30 patents

Method and apparatus for producing delay of a carrier signal for im...

Apparatus and method for mitigating excess time delay in a wireless...

Method and apparatus for selecting two antennas from which to recei...

Method of topographically displaying selected information in a cell...

Communication system resource allocation method

Hopped-carrier dynamic frequency reuse

Multiple user spread-spectrum communication system

Cellular radiotelephone communications system

Signal routing system

Reuse groups for scan monitoring in digital cellular systems

Cellular radiotelephone system having colocated base sites

VOX remote unit control in a cellular system

Scanning receiver allocation method and apparatus for cellular radi...

Cellular voice and data radiotelephone system

Patents Applicationslast 30 patents

METHOD AND APPARATUS FOR ALTERING MOBILE DEVICE BEHAVIOR BASED ON R...

Method and apparatus for pseudo-random noise offset reuse in a mult...