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:
Feb. 28, 1995
Filed:
Apr. 20, 1993
Osamu Hira, Tokorozawa, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
The reproduction finish of an optical disc reproducing apparatus is controlled. The optical disc has a program area, in which information is recorded one after another in a radial direction from an inner circumference toward an outer circumference. The information includes recording position information arranged at a predetermined interval in the radial direction. The controlling method includes the steps of: reading the recording position information one after another; continually comparing a presently read recording position information with a previously read recording position information; moving a reading position toward the outer circumference; distinguishing whether reading of the information at the reading position after moving is normal or not; and moving the reading position toward the inner circumference, and finishing the information reproduction.