×

Object detection using sonic waves

  • US 10,209,358 B2
  • Filed: 02/16/2017
  • Issued: 02/19/2019
  • Est. Priority Date: 03/03/2016
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus having a sensor including an output unit for outputting a sonic wave and an input unit for inputting a sonic wave from outside, the apparatus comprising:

  • a control unit configured to cause the output unit to output a first sonic wave for a first time period and a second sonic wave for a second time period following the first time period and which is shorter than the first time period; and

    a determination unit configured to determine whether there is an object in a first area, based on a first reflected wave of the first sonic wave input to the input unit after the output unit outputs the first sonic wave and after a first masking period longer than the first time period and overlapping with the first time period, and to determine whether there is an object in a second area which is closer to the apparatus than the first area, based on a second reflected wave of the second sonic wave input to the input unit after the output unit outputs the second sonic wave and after a second masking period longer than the second time period and overlapping the second time period and which is shorter than the first masking period.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×