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. 10, 2013
Filed:
Feb. 18, 2010
Daisuke Sato, Osaka, JP;
Tatsumi Watanabe, Osaka, JP;
Bunpei Toji, Gifu, JP;
Yasuhiro Kuwahara, Osaka, JP;
Takeshi Ito, Osaka, JP;
Shinya Kiuchi, Osaka, JP;
Yoshiaki Owaki, Osaka, JP;
Daisuke Sato, Osaka, JP;
Tatsumi Watanabe, Osaka, JP;
Bunpei Toji, Gifu, JP;
Yasuhiro Kuwahara, Osaka, JP;
Takeshi Ito, Osaka, JP;
Shinya Kiuchi, Osaka, JP;
Yoshiaki Owaki, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A distance measuring device using a multiple wave enables measurement of long distances with a high resolution and with a high precision by significantly reducing the circuit scale required for demultiplexing circuitry. A distance measuring device () includes an illumination unit () that illuminates using multiple modulated light having a plurality of frequencies satisfying a relationship in which one frequency is an even multiple of another frequency, a light receiving unit () that accumulates the charge of reflected light of the multiple modulated light into a plurality of accumulation units while switching an accumulation unit into which the charge is accumulated at a predetermined timing, and a distance calculation unit () that calculates a distance based on the charge.