Automatic POS loop switching apparatus

Details Automatic POS loop switching apparatus Automatic POS loop switching apparatus

1987-03-16

1990-05-22

Smith, Jerry

Excavating

371 91, 371 82, G06F 1120

Patent

active

049282794

ABSTRACT:
A POS loop switching apparatus includes a switching circuit for selectively connecting first and second transmission lines, to which at least one Point Of Sales (POS) terminal is connected, and first and second file control means for periodically supplying a control signal, so as to constitute at least one closed loop, and switch control means for supplying a first switching signal to a switching circuit, in response to control signals from the first and second file control means, to cause the switching circuit to connect the first and second file control means respectively to the first and second transmission lines, thereby to constitute first and second closed loops, and when one of the first and second file control means does not generate a control signal over a predetermined period of time, for supplying a second switching signal to the switching circuit, to cause the switching circuit to connect one of first and second transmission lines connected to the file control means which does not generate the control signal, to the other file control means, so as to constitute a new closed loop by the transmission line, the other file control means, and the other transmission line which was connected to the other file control means.

REFERENCES:
patent: 4006456 (1977-02-01), Wilk
patent: 4231015 (1980-10-01), Union
patent: 4354267 (1982-10-01), Mori
patent: 4623884 (1986-11-01), Ihara
patent: 4633468 (1986-12-01), Skatrud
patent: 4713811 (1987-12-01), Frey

Affiliated with

Also associated with

Rating

Automatic POS loop switching apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automatic POS loop switching apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic POS loop switching apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2139282