Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahiro Yamamoto0
Date of Patent
August 15, 2006
Patent Application Number
10632185
Date Filed
July 30, 2003
Patent Primary Examiner
Patent abstract
A photodetector and optical pickup device which comprises: a monitoring photodetection element (photodiode) 23 for receiving laser beams having different wavelengths from laser light sources; a light source-discriminating photoreceiver 24 represented by a photodiode (240) and a wavelength selection filter (241) for discriminating the wavelength spectra of the laser light sources; and a sensitivity regulation circuit (25) for regulating the sensitivity of the monitoring photodetection element 23 in response to the light source-discriminating photoreceiver 24.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
