Timothy Lis

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Framingham, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for detecting amplitude modulated answer back...
- Patent number 5,787,116
- Issue date Jul 28, 1998
- Motorola Inc.
- Thanh Lam
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Call progress decoder for multiple cadenced tones on telephone lines
- Patent number 5,483,593
- Issue date Jan 9, 1996
- Motorola, Inc.
- Sanjay Gupta
- H04 - ELECTRIC COMMUNICATION TECHNIQUE