Electronic signalling device to alert CB radio equipped vehicles
OwnerDonald V. Carlesoninventor
Life of this patent
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Abstract
An electronic signalling device is disclosed whereby Citizens Band Radio equipped vehicles are provided with an independent signalling system whereby one vehicle may gain the attention of and alert a second vehicle equipped with the same system, in close proximity, preferably in visual contact, for the express purpose of requesting voice communication on their respective CB radios. The signalling system utilizes a tone signal device and electromagnetic radiant device to designate the CB Radio channel number requested for subsequent communication.
Claims4
A signalling transceiver for use by an operator of a CB transceiver equipped vehicle to alert the operator of a similarly equipped vehicle, said signalling transceiver being normally in a receive mode and having a momentary transmit mode, comprising in combination;
- means for connecting the signalling transceiver to the existing CB antenna and also to the existing CB transceiver;
- said means for connecting comprising a switch means having a plurality of sets of contacts, each set of contacts being in a steady state position when the signalling transceiver is in said receive mode and a momentary position when the signalling transceiver is in said momentary transmit mode;
- said signalling transceiver comprising means for receiving and detecting an alerting signal including;
- an RF protection circuit to prevent reception by the signalling transceiver during transmission and reception by the CB transceiver, and also to prevent reception of all strong RF signals from any source;
- a receiver means for receiving and amplifying an alerting signal;
- and circuit means for validating the received alerting signal;
- the valid reception of an alerting signal being displayed by an illumination device and having an accompanying audio tone;
- said signalling transceiver further comprising means for transmitting an alerting signal including;
- means to produce a carrier signal;
- means to produce an audio tone;
- means to modulate the carrier signal with the audio tone;
- means to amplify and transmit the modulated carrier signal upon activation of the switch means to the momentary position;
- range control means to control the distance of transmission of the alerting signal;
- and means for supplying the audio tone to the circuit means for validating upon activation of the switch means to provide a visual display and accompanying audio tone for the operator of the signalling transceiver to know that an alerting signal has been transmitted.
Dependencies are inferred from the claim text.