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. 13, 2008
Filed:
May. 15, 2002
Yukinobu Sugiyama, Hamamatsu, JP;
Seiichiro Mizuno, Hamamatsu, JP;
Tetsuya Taka, Hamamatsu, JP;
Takashi Suzuki, Hamamatsu, JP;
Yukinobu Sugiyama, Hamamatsu, JP;
Seiichiro Mizuno, Hamamatsu, JP;
Tetsuya Taka, Hamamatsu, JP;
Takashi Suzuki, Hamamatsu, JP;
Hamamatsu Photonics K.K., Shizuoka, JP;
Abstract
A VI conversion circuitinputs a voltage output from a hold circuit, converts this input voltage to a current based on the resistance value of a resistor R, and outputs this current from a drain terminal of a MOS transistor T. An amp Ahas an adequate open loop gain and MOS transistor Toperates in the saturated region. Here, if the resistance value of resistor Ris R, the current value I that is output from VI conversion circuitis in the proportional relationship expressed by the equation, 'I=V/R,' with respect to the voltage V input into VI conversion circuit.