The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2026
Filed:
Aug. 18, 2021
Hokuyo Automatic Co., Ltd., Osaka, JP;
Keisuke Inoue, Osaka, JP;
Kentaro Nishimura, Osaka, JP;
HOKUYO AUTOMATIC CO., LTD., Osaka, JP;
Abstract
A TOF optical rangefindercalculates a distance to an object based on the time of flight measured based on a sum of voltage pulses output from a plurality of photon-counting light receiving elements, where the optical rangefinderis configured to generate a histogram showing a distribution frequency of the times of flight, as calculated by a time-of-flight measurement circuit for repeated emission of measurement light at predetermined periods, over respective regions on a time axis divided into a plurality of regions at predetermined time intervals, calculate a representative value of the times of flight for the object from the times of flight distributed over the regions where the histogram frequency reaches a predetermined histogram threshold, and correct the representative value of the times of flight based on a frequency-error characteristic obtained by a histogram generation circuit with intensity of the reflected light varied in advance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile