Electronic digital logic circuitry – Interface – Current driving
Patent
1997-01-17
1999-07-13
Tokar, Michael
Electronic digital logic circuitry
Interface
Current driving
326 90, 326 80, 326 81, 326 62, H03K 190175, H03K 19094
Patent
active
059231874
ABSTRACT:
The invention offers a data transmission device comprising two lines A and B through which digital data flow whose logic levels are defined for each line A or B by potentials taken off positive supply terminals Va or Vb and negative supply terminals Gnda and Gndb of said line A or B, and an interface module 100 which forms the link between the lines A and B. The interface module 100 comprises two management devices, Ga and Gb, dedicated each to one transmission line A or B. The interface module 100 also comprises two devices called potential monitoring devices, Ca and Cb, each monitoring one transmission line A or B. Each monitoring device Ca or Cb has an input called control input INCA or INCB and comprises means for reproducing on the line it controls, A or B, a data defined by a signal received on said control input INCA or INCB. Each management device Ga or Gb comprises means for permitting it to be disabled by the other management device Gb or Ga. Each management device Ga and Gb further comprises means for detecting on the line it is dedicated to, A or B, the presence of a data to be transmitted to the other line, B or A, respectively. Each management device, Ga or Gb further comprises means for controlling the disabling of the other management device, Gb or Ga, dedicated to the other line, B or A. Each management device Ga or Gb finally comprises defining means for defining for the monitoring device Cb or Ca the data it is to reproduce which has the potential of said other line B or A.
REFERENCES:
patent: 4154978 (1979-05-01), Tu
patent: 4695740 (1987-09-01), Carter
patent: 4713557 (1987-12-01), Carter
patent: 5122691 (1992-06-01), Balakrishnan
patent: 5202593 (1993-04-01), Huang et al.
patent: 5399926 (1995-03-01), Adams et al.
patent: 5736870 (1998-04-01), Greason et al.
Roseen Richard
Tokar Michael
U.S. Philips Corporation
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