The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 1992
Filed:
Feb. 01, 1991
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An apparatus for monitoring a reading position for use in a disc player includes a positional information generating device for generating positional information of an information reading point in a direction of disc radius in accordance with the movement of the information reading point. The apparatus is configured to perform operations of detecting a condition that the information reading point is in one of at least lead-in and lead-out areas on the disc, storing each positional information by the positional information generating device at the time of the detection, comparing the positional information by the positional information generating device during the movement of the information reading point, and monitoring the position of the information reading point with respect to the lead-in and lead-out areas on the basis of a result of the comparison.