Method and distance measuring device for determining the distance between an object and the device

摘要

The method involves transmitting a transmission signal, especially an optical signal, with time varying modulation frequency during an illumination phase through the distance measuring device. A reception signal is received in the form of a component of the transmission signal reflected from the object during a read out phase. The illumination phase and the read out phase together represent an image clock. The distance is then calculated by analyzing the transmission and reception signals. The modulation frequency of the transmission signal is individually reset for each illumination phase. Independent claims also cover a distance measuring device.