Electronic parking meter
First Claim
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1. An electrical communication interface between an electronic parking meter and an external device wherein said electronic parking meter comprises a microprocessor and said external device comprises a vehicle detector, said communication interface being coupled between said microprocessor and said vehicle detector.
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Abstract
An electronic parking meter which is capable of detecting presence of a parked vehicle, keeping track of the amount of money, including both U.S. and foreign coinage, in the meter, gathering statistics on the parking space and the meter, alerting the parking authority of meters that are expired in connection with vehicles still parked, and zeroing the remaining time off of any meter once the parked vehicle departs.
174 Citations
5 Claims
- 1. An electrical communication interface between an electronic parking meter and an external device wherein said electronic parking meter comprises a microprocessor and said external device comprises a vehicle detector, said communication interface being coupled between said microprocessor and said vehicle detector.
Specification