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:
May. 06, 2025
Filed:
Aug. 10, 2022
Hamamatsu Photonics K.k., Hamamatsu, JP;
Shinya Iwashina, Hamamatsu, JP;
Terumasa Nagano, Hamamatsu, JP;
Masanori Okada, Hamamatsu, JP;
Shunsuke Adachi, Hamamatsu, JP;
Takuya Fujita, Hamamatsu, JP;
HAMAMATSU PHOTONICS K.K., Hamamatsu, JP;
Abstract
In a light detection device, switches are connected in parallel to each other. Each of the switches is connected to an APD. A read line electrically connects the switch and a signal processor to each other. The switch is configured such that a second terminal is connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in a conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage greater than or equal to a breakdown voltage is applied to the APD in the conductive state. The switch is configured such that the second terminal is not connected to the read line and a voltage less than a breakdown voltage is applied to the APD in the conductive state.