Roger K. Loper

Person

Marion, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
System for correcting quadrature gain and phase errors in a direct...
- Patent number 5,604,929
- Issue date Feb 18, 1997
- Rockwell International
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
AM demodulation receiver using digital signal processor
- Patent number 5,339,040
- Issue date Aug 16, 1994
- Rockwell International Coproration
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase and gain error control system for use in an I/Q direct conver...
- Patent number 5,249,203
- Issue date Sep 28, 1993
- Rockwell International Corporation
- Roger K. Loper
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
System for controlling phase and gain errors in an I/Q direct conve...
- Patent number 5,230,099
- Issue date Jul 20, 1993
- Rockwell International Corporation
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Selectivity system for a direct conversion receiver
- Patent number 5,179,730
- Issue date Jan 12, 1993
- Rockwell International Corporation
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct conversion receiver with tri-phase architecture
- Patent number 5,095,536
- Issue date Mar 10, 1992
- Rockwell International Corporation
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic gain control system for a direct conversion receiver
- Patent number 5,095,533
- Issue date Mar 10, 1992
- Rockwell International Corporation
- Roger K. Loper
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital voice and data frequency modulation circuit
- Patent number 4,682,123
- Issue date Jul 21, 1987
- Rockwell International Corporation
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Battery monitor circuit
- Patent number 4,387,334
- Issue date Jun 7, 1983
- Rockwell International Corporation
- Roger K. Loper
- G01 - MEASURING TESTING

Roger K. Loper

Person

Patents Grantslast 30 patents

System for correcting quadrature gain and phase errors in a direct...

AM demodulation receiver using digital signal processor

Phase and gain error control system for use in an I/Q direct conver...

System for controlling phase and gain errors in an I/Q direct conve...

Selectivity system for a direct conversion receiver

Direct conversion receiver with tri-phase architecture

Automatic gain control system for a direct conversion receiver

Digital voice and data frequency modulation circuit

Battery monitor circuit