Qifa Wu

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Radio transmitter and radio receiver with channel condition assessment
- Patent number 8,712,354
- Issue date Apr 29, 2014
- QUINTIC Holdings
- Yifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency modulation (FM) clear channel scanning system and method...
- Patent number 8,478,218
- Issue date Jul 2, 2013
- Quintic Holdings
- Yifeng Zhang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radio transmitter and radio receiver with channel condition assessment
- Patent number 8,238,844
- Issue date Aug 7, 2012
- QUINTIC Holdings
- Yifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Radio Transmitter and Radio Receiver with Channel Condition Assessment
- Publication number 20120238228
- Publication date Sep 20, 2012
- QUINTIC HOLDINGS
- Yifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Radio Transmitter and Radio Receiver with Channel Condition Assessment
- Publication number 20090311973
- Publication date Dec 17, 2009
- QUINTIC HOLDINGS
- Yifeng Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
FREQUENCY MODULATION (FM) CLEAR CHANNEL SCANNING SYSTEM AND METHOD...
- Publication number 20090311982
- Publication date Dec 17, 2009
- Yifeng ZHANG
- H03 - BASIC ELECTRONIC CIRCUITRY