Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Li Sheng Lo0
Date of Patent
May 14, 2019
Patent Application Number
15441721
Date Filed
February 24, 2017
Patent Primary Examiner
Patent abstract
Distance detection method and device are provided. The distance detection method comprises: providing a directional signal emitting module; providing a directional signal receiving module having a constant bandwidth; providing a distance detection signal to the directional signal emitting module; changing a frequency of the distance detection signal provided to the directional signal emitting module, and judging whether the directional signal receiving module can decode a reflected directional signal into a received signal; and judging a distance between an external object and the directional signal receiving module according to whether the received signal corresponding to the frequency of the distance detection signal can be decoded.
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