TDM data transmission system

Details TDM data transmission system TDM data transmission system

1989-05-02

1990-10-16

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

371 501, 3701051, H04J 307

Patent

active

049641220

ABSTRACT:
A system for transmitting digital data by time division multiplex (TDM) includes a transmission terminal for transmitting a TDM data stream having a frame structure which includes fixed stuff bytes and/or frame overheads forming part of the payload but not normally available to the user. The system includes a processor for locating said fixed stuff bytes, and overwriting at least some of the fixed stuff bytes to introduce mark parity, and a receive terminal having a processor for detecting the introduced parity bytes and determining whether or not there has been an error in transmission. The processor at the receive terminal includes an AND-gate to which the transmitted TDM signal containing mark parity is fed, a clock for supplying a clock signal to the AND-date, a bistable flip-flop connected to the output of the AND-gate, and a band pass filter for filtering the output of the AND-gate.

REFERENCES:
patent: 3404372 (1968-10-01), Robbins
patent: 4644529 (1987-02-01), Amstutz et al.
patent: 4660202 (1987-04-01), Woodsum
patent: 4719624 (1988-01-01), Bellisio
patent: 4835768 (1989-05-01), Hubbard et al.

Affiliated with

Also associated with

Rating

TDM data transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with TDM data transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TDM data transmission system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-855533