Digital telephone switching system having plural terminal device

Details Digital telephone switching system having plural terminal device Digital telephone switching system having plural terminal device

1996-01-11

1998-02-17

Nguyen, Chau

Multiplex communications

Duplex

Communication over free space

370421, 370524, H04J 312

Patent

active

057198551

ABSTRACT:
A plurality of digital telephones 2A, 2B are provided in direct multiple connection with a digital line 4 introduced from a private branch exchanging system. Each of the digital telephones 2A, 2B sends a burst signal containing its own telephone call data, and burst signals from the telephones 2A, 2B are combined into a single burst signal on the digital line 4 to transmit communication data of the telephones 2A, 2B in the form of the single burst signal to the private branch exchanger 1.

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patent: 5204860 (1993-04-01), Sparks
patent: 5309440 (1994-05-01), Nakamura et al.

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