Digital data input circuit

Details Digital data input circuit Digital data input circuit

1983-09-16

1986-06-24

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

307117, 34082582, H01H 3500, H04Q 100

Patent

active

045969841

ABSTRACT:
In a digital data input circuit, a number of switches arranged in matrix of m rows by n columns (m, n: integer being equal to one or more) are operated in ON/OFF state and signals are obtained to represent setting state of the switches, amplifying means which are additionally connected before and after the switches are driven directly by power including ripple voltage generated by rectifying AC power, and pulse train signal for strobing output signal of the amplifier is generated from the power including the ripple voltage.

REFERENCES:
patent: 3818451 (1974-06-01), Coleman
patent: 4234872 (1980-11-01), Halder
patent: 4310754 (1982-06-01), Check
patent: 4320388 (1982-03-01), McCarthy et al.

Affiliated with

Also associated with

Rating

Digital data input circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital data input circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital data input circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2086799