| 摘要 |
<p>A time metering device particularly useful as an incar parking meter includes a storage device (14) for storing a variable representing pre-purchased time and at least one randomly selected recharge code, a time measuring device (24), an interface for entering a command to decrement pre-purchased time in accordance with passage of time measured by the time measuring device and for entering a code, and a display device (26) for displaying status information. When the user enters a code which matches a valid recharge code stored in the storage device, the value of the variable representing pre-purchased time is altered to indicate a predetermined increase in pre-purchased time.</p> |
