Data transmission system with double lines

Details Data transmission system with double lines Data transmission system with double lines

1991-04-01

1992-08-18

Heyman, John S.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

340505, 340506, 340508, 340664, G08B 108, G08C 1902, G08C 1302

Patent

active

051406225

ABSTRACT:
A data transmission system with double lines comprises a plurality of sensor terminals connected to the current line in cascade, and a controller connected to a current input side of the first sensor terminal. A switch device in each sensor terminal connects the current line to a sensor circuit for a specified time after a current begins to flow to the current input side of the sensor terminal, and connects the current line to the current output side of the sensor terminal after an elapse of the specified time. After that switching, the current begins to flow to the next sensor terminal. If the sensor turns on while the current is flowing to the sensor circuit, the value of the current of the current line may be greater. The controller detects value of the current and decides state of the sensor circuit in the sensor terminal according to the value of the current.

REFERENCES:
patent: 3967259 (1976-06-01), Lecuyer
patent: 4468746 (1984-08-01), Davis
patent: 4536748 (1985-08-01), Tonello
patent: 4603318 (1986-07-01), Philp
patent: 4612534 (1986-09-01), Buehler et al.
patent: 4745398 (1988-05-01), Abel et al.

Affiliated with

Also associated with

Rating

Data transmission system with double lines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data transmission system with double lines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data transmission system with double lines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1254765