Intercom system having unified control and audio data transport

Details Intercom system having unified control and audio data transport Intercom system having unified control and audio data transport

2006-09-05

2006-09-05

Lee, Andy (Department: 2663)

Multiplex communications

Channel assignment techniques

Combining or distributing information via time channels...

C370S451000, C370S489000

Reexamination Certificate

active

07103062

ABSTRACT:
An intercom system utilizing peer-to-peer computer network hardware that shares bandwidth between digital audio transport and inter-processor data communications on a common time-division-multiplexed (TDM) parallel bus. The system hardware automates symmetric, simultaneous, variable-length data block transfers among all of the microprocessor-controlled cards in the system. These cards communicate without intervention by or assistance from a central controller or intermediary communications processor, thereby improving system throughput and reliability and decreasing system complexity. An additional benefit of the communication scheme employed herein is that all system cards automatically track changes in the population of other cards in the system. The intercom system described employs a Configuration Card connected to a configuration computer to provides the system supervisor with the ability to quickly configure the system for a particular use without altering the system's hardware configuration.

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patent: 6061348 (2000-05-01), Castrigno et al.
patent: 6069878 (2000-05-01), Christensen
patent: 6249527 (2001-06-01), Verthein et al.

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