Telephone system using pulse code modulated subscriber lines

Details Telephone system using pulse code modulated subscriber lines Telephone system using pulse code modulated subscriber lines

1980-05-09

1982-06-01

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 87, H04J 308

Patent

active

043331750

ABSTRACT:
In an all-digital telephone system for communication between a central office and widely scattered subscriber locations, means are disclosed for carrying digital service from the central office to various distribution locations over T1-type equipment and from the distribution locations to subscriber locations over ordinary two-wire lines using time-shared bidirectional pulse code modulation.
A salient feature of the system is the provision of "smart repeater" means which permit unidirectional or bidirectional access between any digital subscriber line and any channel of the T1 line under the control of the central office. Provisions are also made in the system for the transmission of slow-speed signals suitable for the remote reading information from sensing devices at the subscriber locations and for the remote operation of suitable devices at the subscriber locations.

REFERENCES:
patent: Re28958 (1976-09-01), Zafiropulo et al.
patent: 3796835 (1974-03-01), Closs et al.
patent: 4071706 (1978-01-01), Warren
patent: 4229815 (1980-10-01), Cummiskey
patent: 4251880 (1981-02-01), Baugh et al.

Affiliated with

Also associated with

Rating

Telephone system using pulse code modulated subscriber lines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone system using pulse code modulated subscriber lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone system using pulse code modulated subscriber lines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1852809