Frame transmission system

Details Frame transmission system Frame transmission system

1994-06-16

1996-04-23

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

375363, H04J 307

Patent

active

055110770

ABSTRACT:
In a frame transmission system for transmitting multi-frames of a DS3.C-bit parity frame system as prescribed in American National Standard and also in Proposed Contribution to CCITT (ITU-T), C1-bits assigned to the prior art DS3.C-bit parity frame, i.e., 3.times.3=9 C-bits (fixed bits) for the 2nd, 6th and 7th channels, are used as control bits of DS2 level signal for intrinsic purposes. These bits may be processed in their entirely in the same manner as with the prior art control bits.

REFERENCES:
patent: 4667324 (1987-05-01), Graves
patent: 4884268 (1989-11-01), Goto
patent: 4935921 (1990-06-01), Ishizaki et al.
"American National Standard for Telecommunications", Aug. 1990, pp. 1-12.
Beatriz Ugrinovic, "Proposed Contribution to CCITT (ITU-T), T1.times.1. 4 AT&T", Jan. 1992, pp. 1-11.
David Smith, "Digital Transmission System", 1993, pp. 235-237.

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