Multiplex communications – Wide area network – Packet switching
Patent
1992-07-21
1994-05-31
Chin, Wellington
Multiplex communications
Wide area network
Packet switching
370108, 370111, 370116, H04L 704, H04J 306
Patent
active
053175727
ABSTRACT:
Disclosed are a hybrid multiplex synchronizing method and apparatus therefor, in which, when time-shared multiplexed data having different frame patterns and different frame lengths are inputted in different phases every time slot, the data are transmitted upon making the phases of the data in each time slot identical. The apparatus stores in advance, in correlation with the time slots, types of frame patterns and frame lengths of time-shared multiplexed data allocated to each time slot, and performs frame-pattern detection processing in correspondence with each of the different frame patterns. A synchronized-phase detection signal is output in response to detection of the frame pattern, and when the synchronized-phase detection signal is generated in response to detection of the frame pattern of the time-shared multiplexed data allocated to each time slot, the time-shared multiplexed data in the each time slot is rearranged in memory, taking into consideration the frame length of these data, based upon the synchronized-phase detection signal. The phases of the data in each of the time slots are then identical to one another.
REFERENCES:
patent: 4547877 (1985-10-01), Lehman et al.
patent: 4622666 (1986-11-01), Graves et al.
patent: 4984238 (1991-01-01), Watanabe et al.
patent: 5025458 (1991-06-01), Casper et al.
Chin Wellington
Fujitsu Limited
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