Philip Ching

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Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Analog PLL with switched capacitor resampling filter
- Patent number 7,078,946
- Issue date Jul 18, 2006
- Zarlink Semiconductor Inc.
- Robertus Laurentius van der Valk
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for detecting dual tone alerting signal in tel...
- Patent number 6,813,350
- Issue date Nov 2, 2004
- Zarlink Semiconductor Inc.
- Philip Ching
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Analog PLL with switched capacitor resampling filter
- Publication number 20030155950
- Publication date Aug 21, 2003
- Zarlink Semiconductor Inc.
- Robertus Laurentius van der Valk
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method and apparatus for detecting dual tone alerting signal in tel...
- Publication number 20010033648
- Publication date Oct 25, 2001
- Philip Ching
- H04 - ELECTRIC COMMUNICATION TECHNIQUE