Jeonghyeon Cha

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Kyungsangbuk-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Power amplifying apparatus using asymmetric power drive
- Patent number 7,342,444
- Issue date Mar 11, 2008
- Postech Foundation
- Bumman Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Doherty amplifier
- Patent number 6,853,245
- Issue date Feb 8, 2005
- Pohang University of Science and Technology Foundation
- Bumman Kim
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Base station power amplifier for memory effect minimization
- Publication number 20070120606
- Publication date May 31, 2007
- SAMSUNG ELECTGRONICS CO., LTD.
- Jong-Sung Lee
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Power amplifying apparatus using asymmetric power drive
- Publication number 20060145757
- Publication date Jul 6, 2006
- Postech Foundation
- Bumman Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Doherty amplifier using adaptive bias control
- Publication number 20040174212
- Publication date Sep 9, 2004
- Postech Foundation
- Bumman Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Doherty amplifier
- Publication number 20040041627
- Publication date Mar 4, 2004
- Pohang University of Science and Technology Foundation
- Bumman Kim
- H03 - BASIC ELECTRONIC CIRCUITRY