Monitoring system for indicators utilizing individually energiza

Details Monitoring system for indicators utilizing individually energiza Monitoring system for indicators utilizing individually energiza

1979-05-10

1981-01-27

Trafton, David L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

315129, 340765, 340641, G08B 522

Patent

active

042478529

ABSTRACT:
One electrode each of at least selected ones of the segments of a seven segment liquid crystal indicator is connected to a test lead as well as an energizing lead. The voltage level of the energizing lead is compared to that of the test lead and an error signal is furnished if there is no correspondence therebetween. Where the seven segment indicator has a plurality of digits energized by a multiplexer, the electrodes of corresponding ones of the segments in each digit can be connected together and only one test lead is then provided for the so-formed set of segments.

REFERENCES:
patent: 3051955 (1962-08-01), Pfleger et al.
patent: 3548403 (1970-12-01), Johnson
patent: 3753226 (1973-08-01), Schnurmann et al.
patent: 3866171 (1975-02-01), Loshbough
patent: 3943500 (1976-03-01), Buchanan
patent: 4064485 (1977-12-01), Leyde

Affiliated with

Also associated with

Rating

Monitoring system for indicators utilizing individually energiza does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1184453