Patent ID: 11914082
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A ranging method performed by a ranging device including transducers, the ranging method comprising:
causing at least one of the transducers to transmit a transmission wave;
outputting a received signal obtained by digitizing a reflected wave of the transmission wave by using a sampling frequency equal to or more than a frequency of the transmission wave, the reflected wave being received by each of the transducers;
separating, into a target period and a non-target period, time-series received signals output by the outputting, the target period being a period in which a wave height is equal to or more than a threshold, the non-target period being a period in which a wave height is less than the threshold;
performing thinning-out processing on received signals in the non-target period;
generating waveform information indicating a waveform received by the transducer; and
outputting the waveform information generated by the generating.