Multiplex communications – Wide area network – Packet switching
Patent
1986-03-19
1987-12-01
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 94, H04J 324
Patent
active
047109181
ABSTRACT:
A composite data transmission system wherein packet switching stations adapted to transmit data of the kind for which transfer delay and periodicity do not matter and operated to detect collisions between packets in the light of alterations in the DC voltage level of packet signals and circuit switching stations adapted to transmit data of the kind requiring periodic transmission are connected to one and the same transmission line, which composite data transmission system is characterized by causing DC voltage signals of a fixed magnitude to flow with prescribed periods through the transmission line thereby enabling the packet switching stations to recognize collisions and permitting the circuit switching stations to exchange communication during the existence of the packet switching stations' recognition of collisions and permitting the packet switching stations to exchange communication during the absence of the DC voltage signals' flow.
REFERENCES:
patent: 4332027 (1982-05-01), Malcolm
patent: 4412326 (1983-10-01), Limb
patent: 4435804 (1984-03-01), Tan
patent: 4494231 (1985-01-01), Slawy et al.
patent: 4502137 (1985-02-01), Tan
patent: 4507778 (1985-03-01), Tan
patent: 4510600 (1985-04-01), Tan
patent: 4516240 (1985-05-01), Kume et al.
patent: 4525832 (1985-06-01), Miyao
patent: 4525837 (1985-06-01), Tan et al.
patent: 4539676 (1985-09-01), Lucas
patent: 4569041 (1986-02-01), Takeuchi et al.
patent: 4592048 (1986-05-01), Beckner et al.
Fuji 'Xerox Co., Ltd.
Olms Douglas W.
Scutch III Frank M.
LandOfFree
Composite 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 Composite data transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite data transmission system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1935936