H - Electricity – 04 – J
Patent
H - Electricity
04
J
363/10
H04J 3/02 (2006.01) H04J 3/04 (2006.01) H04L 5/22 (2006.01)
Patent
CA 1246251
HIERARCHICAL DATA TRANSMISSION SYSTEM ABSTRACT OF THE DISCLOSURE A hierarchical data transmission system is com- prised, in the transmitter side, of pre-group multi- plexers and a main-group multiplexer and, in the receiver side, of a main-group demultiplexer and pre-group demultiplexers. The main-group multiplexer is fabricated as a parallel-serial converting unit, and the main-group demultiplexer is fabricated as a serial-parallel con- verting unit. Each of the pre-group multiplexers produces a pre-group data train having a sub-data signal which is also utilized for distinguishing one pre-group data train from another. Each of the pre-group demulti- plexers is provided with a discriminator operative, by using the sub-data signal, to distinguish one received pre-group data train from another.
496752
Fujimoto Naonobu
Fukushima Takeo
Mori Masakazu
Fujitsu Limited
Mcfadden Fincham
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