Com Sim Inc Marketing Research & Public Open Polling
1515 Black Rock Tpke #B, Fairfield, CT 06825 1838 Black Rock Tpke #215, Fairfield, CT 06825 203 336-3360
Joseph Litterer President, President Finance Executive
COMSIM, INC Commercial Nonphysical Research Computer Related Services · Computer Related Consulting Services · Computer Related Services Commercial Nonphysical Research
1515 Black Rock Tpke, Fairfield, CT 06825 1838 Black Rock Tpke, Fairfield, CT 06825 2375 Black Rock Tpke, Fairfield, CT 06828 203 336-3360, 203 371-0835
Us Patents
Communications System Having Voice And Digital Data Capability And Employing A Plurality Of Voice And Data Buses In Main Service Unit And Serial Packetized Transmission To And From Telephones
Joseph W. Litterer - Fairfield CT John E. Anderson - Milford CT Gary Mason - Middletown CT Minoru Shigematsu - Kawasaki, JP Fumikazu Hamatani - Milford CT
Assignee:
TIE/Communications, Inc. - Shelton CT Nitsuko Ltd. - Kawasaki
International Classification:
H04Q 1104
US Classification:
370 67
Abstract:
A communications system having a common equipment unit and a plurality of telephone station sets coupled to the common equipment unit comprises a common equipment unit having at least one trunk interface for coupling at least one central office telephone line to the common equipment unit and an analog to digital converter for converting analog signals on the telephone line into digital form, and at least one station interface coupling the common equipment unit to at least one of the station sets by a single wire pair. A plurality of buses couple the trunk interface and the station interface together, the plurality of buses comprising at least one digital voice bus for carrying digitized voice signals, a digital data bus for carrying digital data signals originating from a digital data device and a control data bus for carrying digital data comprising control information for controlling functions in the station sets for routing the data on the digital voice bus and the digital data bus between at least one of the station sets and the telephone line.