Multiplex communications – Wide area network – Packet switching
Patent
1994-11-21
1996-11-26
Hsu, Alpus H.
Multiplex communications
Wide area network
Packet switching
370106, 370108, 375365, H04J 306, H04L 700
Patent
active
055793258
ABSTRACT:
A method and an apparatus for data transmission permit a time offset between individual transmission channels in a multichannel transmission system (ISDN) to be ascertained in a simple manner. After an initialization of the receiving channels, a numerical sequence is simultaneously sent from the transmitter over all of the channels. If a value is received at the receiver over all of the channels which is different from the initializing value, the relative time offset between the channels can be ascertained directly from the received values.
REFERENCES:
patent: 3603735 (1971-09-01), Cleobury
patent: 4383316 (1983-05-01), Seidel
patent: 4658397 (1987-04-01), Kawamura et al.
patent: 4984251 (1991-01-01), Perloff et al.
patent: 5043982 (1991-08-01), Werner
patent: 5177739 (1993-01-01), Basnuevo et al.
patent: 5229998 (1993-07-01), Weisser
Data Communications, Sep. 1993, pp. 108-114 (Turner) "Inverse Muxes: High Bandwidth, Low Cost".
Garweg Kai
Lipfert Reinhard
Greenberg Laurence A.
Hsu Alpus H.
Lerner Herbert L.
Siemens Aktiengesellschaft
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