Radio transmitter display indicator

Details Radio transmitter display indicator Radio transmitter display indicator

1977-03-28

1979-11-27

Murray, Richard

Communications: electrical

Land vehicle alarms or indicators

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

325 25, 325455, 340715, 340756, H04B 102, H04B 1700

Patent

active

041763181

ABSTRACT:
Apparatus for visually indicating a particular operational condition of a radio transmitter, such as the transmitter being activated or the percentage amplitude modulation of the transmitted carrier. An electrical or electronic character display module having an integral decimal point display portion is utilized to visually indicate a transmitter circuit condition. Transmitter activation may be shown by coupling the push-to-talk circuit to the decimal point display. More specifically, the character display module is oriented to be viewed with the decimal point portion in a superscript position relative to the character.
A method for visually indicating the operational status of a radio transmitter includes the steps of providing a character display module having an integral decimal point, generating a signal indicative of a transmit circuit condition, and activating the decimal point display in response to the indicative signal. The indicative signal may be a transmitter activation signal obtained from a push-to-talk circuit or it may be a signal indicating percentage amplitude modulation of the transmit signal. The method also includes the step of orienting the character display module such that it may be viewed with the decimal point portion in a superscript position with respect to the character.

REFERENCES:
patent: 3580421 (1971-05-01), Bickford
patent: 3719849 (1973-03-01), Steward
patent: 3775690 (1973-11-01), Ravenelle
patent: 3886453 (1975-05-01), Quintiliani et al.
patent: 3983484 (1976-09-01), Hodama
patent: 4010456 (1977-03-01), Erni
patent: 4048561 (1977-09-01), Wilcox et al.
patent: 4048564 (1977-09-01), Gleeson, Jr.

Affiliated with

Also associated with

Rating

Radio transmitter display indicator does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-804343