DISTANCE-MEASUREMENT DEVICE AND METHOD FOR POWERING DISTANCE-MEASUREMENT DEVICE

摘要

In a ranging device 10, a controlling unit CONT alternatively switches orders in time series of a first pulse-transfer-signal S 1 and a second pulse-transfer-signal S 2 per frame term T F and outputs the first and second pulse-transfer-signals S 1 , S 2 . Furthermore, an arithmetic unit ART arithmetizes a distance d to an object OJ based on total quantities of charges Q 1 and Q 2 of signal charges, in two frame term T F consecutive in the time series, accumulated in a first charge-accumulating region FD1 and a second charge-accumulating region FD2 in accordance with the first and second pulse-transfer-signals S 1 , S 2 having an identical phase.