Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Samuel Fumanti0
Date of Patent
May 19, 2009
0Patent Application Number
111767740
Date Filed
July 7, 2005
0Patent Primary Examiner
Patent abstract
Improvements to an optical recording apparatus comprising a laser light source are provided. The improvements include installing a photodiode in an optical path of at least a portion of the laser light beam from the laser light source, and connecting said photodiode to a detection circuit. The photodiode detects the laser light beam and generates a detection signal based on the detected beam. The detection circuit monitors the detection signal and generates an alarm signal if the detection signal indicates a dropout in the laser beam. The alarm signal can trigger an alarm indicator and/or cause a recording process to be halted.
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