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US 5,629,689 AGranted
Warning system
AssigneeWholesale Publications Pty. Ltd.
InventorRobert J. Curwood
Life of this patent
Estimating the term…
Abstract
A warning system comprises a receiver adapted to receive and recognize a coded signal, and upon reception and recognition thereof to generate a warning signal; and a transmitter selectively actuable to transmit a coded signal receivable and recognizable by the receiver and including a monitor for monitoring the presence of an extraneous signal originating from another transmitter, the transmitter delaying transmission of the coded signal upon detection of the extraneous signal.
Claims7
A warning system comprising:
- a receiver to receive and recognize a coded signal, and upon reception and recognition thereof to generate a warning signal;
- and
- a transmitter selectively actuable to transmit the coded signal receivable and recognizable by the receiver and including monitoring means for monitoring the presence of an extraneous signal originating from another transmitter, said transmitter delaying transmission of the coded signal upon detection of the extraneous signal from said another transmitter;
- wherein the transmission of the coded signal is delayed by a predetermined time interval or is delayed until the monitoring means determines that the extraneous signal has terminated or dropped below a pre-selected signal strength.
1 more element
A warning system comprising:
- a receiver to receive and recognize a coded signal, and upon reception and recognition thereof to generate a warning signal;
- and
- a transmitter selectively actuable to transmit the coded signal receivable and recognizable by the receiver and including monitoring means for monitoring the presence of an interfering signal originating from another signal source,
- wherein said transmitter delays transmission of the coded signal when said interfering signal is present;
- wherein said transmitter is enabled to begin transmitting a pre-determined time after the monitor first indicates the presence of said interfering signal, or when the strength of said interfering signal terminates or drop below a pre-determined threshold.
2 more elements
Dependencies are inferred from the claim text.