Disk device, and signal producing method

Abstract

A disk device capable of continuing the reproduction and recording of data at the time of condensation occurence without interrupting the processing. In case a condensation sensor (11) has not detected the occurrence of condensation, the quantity of reflected light at the ordinary time is measured by a drive control unit (9) through a light detector (14), a signal processing circuit (15), an RFIC (5) and a DSP (6). In case the condensation sensor (11) has detected the occurrence of condensation, on the other hand, the quantity of reflected light at the condensation time is measured by the drive control unit (9) through the light detector (14), the signal processing circuit (15), the RFIC (5) and the DSP (6). On the basis of the quantity of reflected light at the ordinary time and the quantity of reflected light at the condensation time, a driver (7) and / or the RFIC (5) are controlled by the drive control unit (9) thereby to control a laser power and / or a servo gain.

Description

technical field [0001] The present invention relates to an optical disc device using an optical disc recording medium, and an operation control method used in the optical disc device. Here, the so-called optical disk recording medium is an optical disk recording medium such as DVD (Digital Versatile Disc) or CD (Compact Disc), or a magneto-optical disk recording medium such as MD (Mini Disc (registered trademark)). Background technique [0002] Currently, playback devices, recording and playback devices, imaging devices, and the like using optical disk recording media such as DVDs, CDs, and MDs are widely used. In various electronic devices using optical disc recording media, dew condensation often occurs inside the electronic devices due to temperature changes in the use environment. [0003] Once condensation occurs inside an electronic device that uses an optical disc recording medium, the objective lens of the so-called pickup unit that irradiates laser light on the opt...

AI Technical Summary

Problems solved by technology

[0007] However, installing a large-capacity memory on an electronic device just to keep the process from being stopped when condensation occurs not only increases the cost, but also makes it difficult to obtain an equivalent effect equivalent to the increase in the cost.

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