Multiplex communications – Wide area network – Packet switching
Patent
1993-02-16
1994-11-15
Hsu, Alpus H.
Multiplex communications
Wide area network
Packet switching
370 581, 34082579, 3408258, 371 81, 371 111, H04Q 100, H04Q 1104
Patent
active
053655117
ABSTRACT:
In a cross-connection network including first and second matrix switching units supplied with input digital signals through a branching circuit, first through N-th transmit switching circuits includes primary and secondary first through primary and secondary N-th transmit input terminals connected to primary and secondary first through primary and secondary N-th matrix output terminals of the first and the second matrix switching units, respectively, first through N-th transmit output terminals, and primary and secondary first through primary and secondary N-th abnormal signal detectors, respectively. The transmit switching circuits supply the input digital signals from the primary transmit input terminals to the transmit output terminals, respectively, when the secondary abnormal signal detectors detect abnormalities of the input digital signals, respectively. The transmit switching circuits supply the input digital signals from the secondary transmit input terminals to the transmit output terminals, respectively, when the primary abnormal signal detectors detect abnormalities of the input digital signals, respectively. The transmit switching circuits may supply the input digital signals from the primary transmit input terminals to the transmit output terminals, respectively, when secondary demand data detectors detect switch demand data of the input digital signals that represent failures of matrix switching circuits included in the matrix switching units, respectively. The transmit switching circuits may supply the input digital signals from the secondary transmit input terminals to the transmit output terminals, respectively, when primary switch demand data detectors detect the switch demand data, respectively.
REFERENCES:
patent: 4417244 (1983-11-01), Melas
patent: 4495615 (1985-01-01), Wilke
patent: 4630045 (1986-12-01), Georgiou
patent: 4970505 (1990-11-01), Hirata et al.
patent: 4975695 (1990-12-01), Almond et al.
Hsu Alpus H.
NEC Corporation
LandOfFree
Reliable cross-connection network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reliable cross-connection network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reliable cross-connection network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1103495