Zhifang Du

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for communicating electronic messages over a tele...
- Patent number 6,084,952
- Issue date Jul 4, 2000
- PocketScience, Inc.
- Richard C. Beerman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for enhancing modem performance using digital sig...
- Patent number 6,085,347
- Issue date Jul 4, 2000
- PocketScience, Inc.
- Zhifang Du
- H04 - ELECTRIC COMMUNICATION TECHNIQUE