초록 ▼

A battery powered transponder in a vehicle for communicating with a toll station or weigh station lights one of a few LEDs to indicate whether a bypass of the station is authorized or denied. A transmit/receive circuit sends data to an IC which signals the instruction to a microprocessor which is pr

A battery powered transponder in a vehicle for communicating with a toll station or weigh station lights one of a few LEDs to indicate whether a bypass of the station is authorized or denied. A transmit/receive circuit sends data to an IC which signals the instruction to a microprocessor which is programmed to activate the proper LED when so instructed for a short period and then maintains a recall state for a long period. A pushbutton switch connected to the microprocessor, if operated within the long period, triggers a replay of the proper LED to verify the instruction while minimizing power consumption.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A battery powered transponder for a vehicle for activating appropriate indicators in response to transmitted data comprising:a receiver for receiving transmitted data;a circuit for

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.] A battery powered transponder for a vehicle for activating appropriate indicators in response to transmitted data comprising:a receiver for receiving transmitted data;a circuit for producing indicator signals in response to the data;a processor responsive to the indicator signals and coupled to the indicators;a pushbutton switch coupled to an input of the processor; andthe processor is programmed toactivate a selected indicator for a predetermined initial display period in response to an indicator signal to display the transmitted data, and deactivate the selected indicator upon expiration of said predetermined initial display period,reactivate the selected indicator for a period when the pushbutton switch is operated within a predetermined reactivation interval following the expiration of said predetermined initial display period; and t the transponder by activating all of the indicators at the same time when the push button switch is operated after the predetermined reactivation interval has expired.