Optical read device, information processing device and information reproduction method
An information processing device and optical reading technology, applied in optical recording/reproduction/erasing methods, optical recording/reproduction, information storage, etc., can solve the problem of eliminating common mode components, signal imbalance, and difficult to obtain Issues such as address information to achieve the effect of eliminating common mode components
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[0027] The present invention relates to an optical reading unit that irradiates light on an optical recording medium, an information processing device using the optical recording medium (for example, a recording / reproducing device), and an information reproducing method. The present invention assumes detection of light returned from an optical recording medium to obtain a push-pull signal, and the present invention is preferably applicable to, for example, an optical recording medium having address information recorded as wobble information, and reproducing said address information contained in a push-pull signal .
[0028] figure 1 The basic structure of the present invention is shown, which illustrates a typical structure of an optical disk recording / reproducing apparatus.
[0029] Various types of information including user data are recorded on the optical recording medium 2 used in the information processing apparatus 1, and such information is read out by irradiation wi...
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