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:
Mar. 26, 2013
Filed:
Sep. 12, 2008
Tsuyoshi Nishioka, Tokyo, JP;
Tsuyoshi Nishioka, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
Provided is a photon detector that enables an APD response by a sinusoidal wave-shaped gate signal and is operable at an arbitrary drive frequency without requiring a special band removing filter. The photon detector of the present invention includes: a sinusoidal wave generator () that generates a sinusoidal wave-shaped gate signal; a beam splitter () that splits the gate signal; a bias circuit () that supplies a signal resulting from superimposing the gate signal which has passed through the beam splitter () on a predetermined DC voltage to an avalanche photodiode; a dummy circuit () which inputs the gate signal which has passed through the beam splitter (), and outputs a response signal simulating the avalanche photodiode; a differential amplifier () that amplifies a differential input between a response signal from the avalanche photodiode and the response signal from the dummy circuit (); and a comparator () that outputs a photon detection signal when an output from the differential amplifier () is equal to or higher than a predetermined threshold voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile