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:
Jul. 30, 2024
Filed:
Jun. 03, 2019
National Institute of Information and Communications Technology, Tokyo, JP;
Keizo Inagaki, Tokyo, JP;
Toshimasa Umezawa, Tokyo, JP;
Naokatsu Yamamoto, Tokyo, JP;
Tetsuya Kawanishi, Tokyo, JP;
Abstract
[Problem] To provide a camera with high sensitivity even if an output to the outside is weak. [Solution] This camera includes a light source, a demultiplexing unitwhich demultiplexes light from the light sourceinto first demultiplexed light and second demultiplexed light, a first modulatorwhich modulates the first demultiplexed light to obtain a modulated signal, an emission unitwhich emits the modulation signal modulated by the first modulator, and a phase imparting meanswhich imparts a plurality of types of phase shifts to the second demultiplexed light to obtain phase-imparted local light. The camera further includes a multiplexing unitwhich multiplexes light incident from the outside of the camera and the phase-imparted local light and obtains multiplexed light, a light receiving elementwhich detects the multiplexed light, and includes a light receiving unit, and an analysis processing unitwhich, on the basis of the multiplexed light received by the light receiving element, analyzes the position of a subject or the distance between the subject and the camera.