Multiplex communications – Wide area network – Packet switching
Patent
1992-09-14
1995-06-20
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 306
Patent
active
054266440
ABSTRACT:
A parallel transmission method includes a submethod of transmitting portion for transmitting parallel data of a plurality of channels as encoded data of a plurality of lines and a submethod of receiving portion for decoding parallel data of a plurality of lines from encoded data of the plurality of channels. The submethod of transmitting portion includes the steps of multiplying the frequency of a clock by a predetermined number to generate a multiplexing clock, separating input signals composed of parallel data of a plurality of channels and additional data for code transformation into a plurality of groups, transforming parallel data into serial data with the multiplexing clock, mutually substituting the resultant data of the plurality of channels from time to time, and generating encoded data containing the additional data of the plurality of lines. The submethod of receiving portion includes the steps of synchronizing encoded data of the plurality of lines with the additional data, substituting the resultant data of the plurality of lines in the inverse order of the transmitting portion, removing the additional data from the resultant data, successively arranging the resultant data of each group, dividing the frequency of a transmission clock by a predetermined number to generate an original clock, and transforming serial data of each group into parallel data.
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Patent Abstracts of Japan, vol. 6, No. 182 (E-131) & JP-A-57 095 737 (Fujitsu Ltd.) *abstract*.
Patent Abstracts of Japan, vol. 7, No. 119 (E-177)(1264) & JP-A-58 36 052 (Fujitsu K.K.) *abstract*.
Fujitsu Limited
Olms Douglas W.
Ton Dang
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