Electrical digital display indicators

Details Electrical digital display indicators Electrical digital display indicators

1979-02-12

1980-12-16

Robinson, Thomas A.

Communications: electrical

Land vehicle alarms or indicators

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

340792, G08B 2500, G06F 314, G09F 932

Patent

active

042400740

ABSTRACT:
An electrical indicator for providing a digital display representation of the value of an input variable has four display areas, each area being arranged to display an individual one of the digits of a four digit number representative of the value of the input variable. Each display area is in the form of a matrix array of light-emitting diodes. The indicator includes a computing unit which is arranged to energize those diodes making up each digit and, by varying the energization, to cause displacement of the least-significant digit within its display area upon change in value of the input variable. Digits within the other areas remain stationary until an adjacent less-significant digit is moved between `0` and `9` when the more-significant digit is displaced in synchronism with the less-significant digit. The computing unit includes a store which contains information as to which diodes should be energized to represent any particular digit. The computing unit initially addresses only those locations in the store relating to diodes along one row of the matrix, and is incremented subsequently to read out information relating to other rows.

REFERENCES:
patent: 3275871 (1966-09-01), Yiotis
patent: 3343155 (1967-09-01), Pahlavan
patent: 3460127 (1969-08-01), Pahlavan
patent: 3594757 (1971-07-01), Gard et al.
patent: 3914758 (1975-10-01), Ingle
patent: 4155084 (1979-05-01), Klees

Affiliated with

Also associated with

Rating

Electrical digital display indicators does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-610631