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:
Sep. 12, 1989
Filed:
Dec. 21, 1987
Applicant:
Inventor:
Masanao Okatani, Tokyo, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358342 ;
Abstract
A reproduction method for a digital disk player capable of playing both a standard compact disk containing only audio information and a composite disk having a first region containing only audio information and a second region containing both audio information and video information. The difference value between a present address as extracted from the information read from the disk and an expected address is continuously monitored. If the difference exceeds a prescribed value, it is judged that the reading spot of the pickup has jumped tracks. The beam is then moved back toward the expected address until the present address agrees with the expected address.