Time measuring circuit, time measuring chip, laser detection / ranging system, automatic device, and time measuring method

摘要

The delay chain (12) includes a delay chain (12) and a latch unit (14), and the delay chain (12) simultaneously transmits the rising edge of the signal to be measured starting from a plurality of delay units in the delay chain (12). A time measuring circuit (10), a time measuring method, and related chips, systems, and devices capable of obtaining a plurality of sampling results of rising edges. The latch unit (14) can latch the output signal of the delay unit on the delay chain (12). The function of TDC can be realized by a dedicated circuit, and the volume and cost of the rider system can be reduced.