Signaling system

Details Signaling system Signaling system

1944-06-30

1976-06-22

Birmiel, Howard A.

Telegraphy

Systems

Printing

178 72, H04K 102

Patent

active

039652963

ABSTRACT:
1. In a signaling system, a plurality of input circuits carrying signal currents, a corresponding plurality of individual output channels, a privacy equipment common to said circuits and channels for rendering said signal currents unintelligible, a first set of relays for operatively associating said input circuits one at a time with said privacy equipment, a second set of relays for operatively associating said privacy equipment with said channels one at a time, and a common timing circuit for operating the relays of each set in timed sequence.

REFERENCES:
patent: 1752485 (1930-04-01), Hartley
patent: 2048081 (1936-07-01), Riggs
patent: 2098956 (1937-11-01), Dudley
patent: 2151091 (1939-03-01), Dudley
patent: 2185367 (1940-01-01), Blumlein
patent: 2199634 (1940-05-01), Koch
patent: 2256085 (1941-09-01), Goodale
patent: 2296920 (1942-09-01), Goodale
patent: 2329073 (1943-09-01), Mitchell et al.
patent: 2451484 (1948-10-01), Gould

Affiliated with

No affiliations

Also associated with

Rating

Signaling system does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2289134