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. 12, 2013
Filed:
Jun. 06, 2008
Takayuki Suzuki, Hamamatsu, JP;
Takayuki Suzuki, Hamamatsu, JP;
Hamamatsu Photonics K.K., Hamamatsu-shi, Shizuoka, JP;
Abstract
In the case in which an input voltage to a comparator COMP reaches (½)×Vcc from initial Vcc in accordance with lowering of the electric potential at a nodal point N, an output level of the comparator COMP is inverted to make the output level LOW. In the case in which the output level of the comparator COMP is made LOW, a switch for amplifying part SWis connected, and an optical receiver circuitmakes the shift to a half start-up state. A signal detector circuit SD as well is started up by the connection of the switch for amplifying part SW. In the case in which an amplifying partis started up, the signal detector circuit SD judges whether a transmission signal is included in an output from the amplifying part. In the case in which the signal detector circuit SD shows that a transmission signal is not included, the resetting switch SWis connected to reset a capacitor C