H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 7/027 (2006.01) H03K 7/08 (2006.01) H03K 9/08 (2006.01) H04L 7/06 (2006.01) H04L 12/00 (2006.01) H04L 25/49 (2006.01)
Patent
CA 2041222
Transmissions of synchronous digital data from a master control unit (50A) to a slave, network termination unit (50B) are via a pulse width modulated data stream including pulse width modulated binary code pulses (20, 22) with a pulse width modulated synchronization pulse (24) all of which have a preselected leading edge transition (28) at the same point in each cycle of a master clock signal. A clock signal is derived at the network termination unit (50B) from the received pulse width modulated binary data stream for decoding and for nonself- clocking, synchronous transmissions from the slave, network termination unit (50B) to the master, control unit (50A). The phase synchronization pulse (24) is employed to maintain phase synchronization between the transmission to and from the control unit (50A).
de Long Steven T.
Jones Barry W.
de Long Steven T.
Jones Barry W.
Rockwell International Corporation
Shapiro Cohen
LandOfFree
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