Apparatus for automatically selectively displaying information o

Details Apparatus for automatically selectively displaying information o Apparatus for automatically selectively displaying information o

1978-03-24

1980-11-04

Yusko, Donald J.

Communications: electrical

Land vehicle alarms or indicators

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

340 52F, 34087016, 235 92ST, 235 92TF, 455154, 368 70, G08B 1900, G04B 1924, H04B 116

Patent

active

042323010

ABSTRACT:
Supplied usually with a first information signal, an indicator displays information carried by the signal, such as time indicated by a clock. Information carried by a second information signal, such as a frequency to which a radio receiver is tuned, is optionally variable. The second information is successively memorized in a memory and supplied to a comparator to be compared with the second information signal. The comparator produces an anticoincidence signal when the second information is subjected to a change. A timer produces a switch signal for a predetermined duration after the change of the variable information. Responsive to the switch signal, a switch temporarily supplies the indicator with the memorized information relating to the second information instead of the first information signal.

REFERENCES:
patent: 3816730 (1974-06-01), Yamamoto et al.
patent: 3964018 (1976-06-01), Strait et al.
patent: 3973205 (1976-08-01), Tanaka
patent: 3996451 (1976-12-01), Harrington et al.
patent: 4031363 (1977-06-01), Freeman et al.
patent: 4078375 (1978-03-01), Kashio
patent: 4109315 (1978-08-01), Pan

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