Asymmetric digital subscriber line control system

Details Asymmetric digital subscriber line control system Asymmetric digital subscriber line control system

1994-02-18

1995-10-24

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 857, 3701101, 348 14, 379102, H04N 714

Patent

active

054616166

ABSTRACT:
An asymmetric digital subscriber line (ADSL) control system is adapted to transmit an audio signal and a control signal from at least one subscriber terminal to an exchange via a multiplexed line of an audio signal line, a control signal line and an image signal line, and to transmit an audio signal and an image signal from the exchange to the subscriber terminal. The ADSL control system includes a unit for allocating an unused image signal line between the subscriber terminal and the exchange to the control signal line from the subscriber terminal to the exchange, and a unit for allocating 2 lines for each subscriber terminal at the exchange.

REFERENCES:
patent: 4763191 (1988-08-01), Gordon et al.
patent: 4849811 (1989-07-01), Kleinerman
patent: 5247347 (1993-09-01), Litteral et al.
patent: 5305318 (1994-04-01), Ozeki et al.

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