Multiplex communications – Wide area network – Packet switching
Patent
1992-03-30
1994-06-28
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
370 13, 3701001, 3701051, 370112, 371 81, 371 82, 371 111, 371 112, 34082501, H04J 314
Patent
active
053253540
ABSTRACT:
Pointer information that shows the bit time slot in a frame of low order group signals in which a leading location of substantial data of the low order group signals is placed, is utilised to provide a synchronous terminal station system of a 1:N redundancy configuration type having first to M-th main receiving units and a standby receiving unit which are housed separately. Each main receiving unit has a switching section which receives particular low order group signals demultiplexed in it and standby low order group signals from the standby receiving unit and transfers selected signals to a pointer conversion circuit. The pointer conversion circuit modifies pointer information to make the selected signal comply with a particular signal format of the main receiving unit.
REFERENCES:
patent: 4601028 (1986-07-01), Huffman et al.
patent: 4774703 (1988-09-01), Force et al.
patent: 5051979 (1991-09-01), Chaudhuri et al.
patent: 5128939 (1992-07-01), Takatori et al.
patent: 5172376 (1992-12-01), Chopping et al.
Blum Russell W.
NEC Corporation
Olms Douglas W.
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