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:
Feb. 18, 2025
Filed:
Oct. 17, 2018
Nec Corporation, Tokyo, JP;
Hidemi Noguchi, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A generation unit () generates a plurality of transmission pulses of which the strength of an optical signal changes in a pulse-like manner. Note that the generation part () generates a plurality of transmission pulses having frequency offsets different from each other. The transmission unit () repeatedly transmits transmission pulses generated by the generation unit (). The reception part () receives reflected pulses of the respective transmission pulses reflected on a distance-measurement-target object. The detection unit () detects the frequency offsets of the reflected pulses received by the reception unit (). The distance calculation unit () calculates a distance to the distance-measurement-target object based on the receiving timings of the reflected pulses received by the reception unit () and the transmitting timings of the transmission pulses corresponding to the frequency offsets detected from the reflected pulses.