System and method for using a photodiode to self-test an optical drive

A system and method for using a photodiode to self-test an optical drive is disclosed. An optical drive includes a light source that emits a light for interacting with optical media. A photodiode placed adjacent the light source detects a portion of the light, such that the photodiode generates an e...

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Bibliographische Detailangaben
Hauptverfasser:	ERICKSON DIRK A, FARHAN MUNIF M
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS COLORIMETRY ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	A system and method for using a photodiode to self-test an optical drive is disclosed. An optical drive includes a light source that emits a light for interacting with optical media. A photodiode placed adjacent the light source detects a portion of the light, such that the photodiode generates an electrical signal proportional to the light that is detected. A circuit is electrically coupled to the photodiode. The circuit receives the electrical signal and, based on the electrical signal, the circuit tests the operability of the optical drive.