Multiplex communications – Wide area network – Packet switching
Patent
1988-09-27
1990-05-08
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 55, H04J 322
Patent
active
049244590
ABSTRACT:
A plurality of digital signals of one or more digital transmission bit rates are combined into a single transmission signal by employing a unique common channel frame format and one step multiplexing process. The channel frame format includes a plurality of data bit positions and a plurality of overhead bit positions. The number of data bit positions used is dependent on the particular incoming signal. Similarly, the number of frames generated during a specific common framing interval is dependent on the digital transmission bit rate of the particular signal. Specifically, the number of channel frames generated during the common channel frame interval is dependent on a number of equivalent so-called lowest transmission bit rate signals included in the particular signal being formatted. The overhead bits are distributed in the channel frame format. Digital words from the channel frames are inserted into predetermined groups of data word positions in a repetitive frame of a single transmission signal. The number of data words in a group is also dependent on the number of equivalent lowest transmission bit rate signals in the particular signal being combined.
REFERENCES:
patent: 3982077 (1976-09-01), Clark et al.
patent: 4122309 (1978-10-01), Jacobson
patent: 4520479 (1985-05-01), Grima et al.
patent: 4716561 (1987-12-01), Angell et al.
J. C. Billy, An Experimental Multi-Purpose Multiplexing Equipment, Proceedings IEEE Global Telecommunications Conference, Nov. 28-Dec. 1, 1983, vol. 1, pp. 16.3-1-16.3.5.
Wiz. Ove, CMOS Circuits for PCM Transmission in Remote Control Technology, Electrotechnology and Machine Fabrication, vol. 92, No. 10, Oct. 1975, pp. 419-424.
Patent Abstracts of Japan, vol. 6, No. 182 (E-31) [1060], Sep. 18, 1982.
K. Ishii et al., Digital Data Multiplexers for Datran Network, NEC Research and Development, No. 37138, Apr./Jul. 1975, pp. 1-14.
Angell Eric H.
Aprille Thomas J.
Fang Rong-Chin
Lee Byeong G.
Spalink Jan-Dieter
AT & T Bell Laboratories
Chin Wellington
Olms Douglas W.
Stafford Thomas
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