James J. Ferenc

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Building-block architecture of a multi-node circuit-and packet-swit...
- Patent number 4,962,497
- Issue date Oct 9, 1990
- AT&T Bell Laboratories
- James J. Ferenc
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Combined circuit switch and packet switching system
- Patent number 4,731,785
- Issue date Mar 15, 1988
- American Telephone & Telegraph Company
- James J. Ferenc
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for checking time slot integrity of a switchin...
- Patent number 4,592,044
- Issue date May 27, 1986
- AT&T Information Systems Inc.
- James J. Ferenc
- H04 - ELECTRIC COMMUNICATION TECHNIQUE