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.

Date of Patent:
Apr. 07, 1998

Filed:

Apr. 09, 1996
Applicant:
Inventors:

Itaru Sato, Chiba, JP;

Shigeto Yanagi, Chiba, JP;

Susumu Matsunaga, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
369 32 ; 369 50 ;
Abstract

An apparatus for reproducing information from a disc-shaped record medium, which comprises an optical reading head for reading a program information signal and absolute time data from an optical disc, a reading position driving portion for moving a reading position set by the optical reading head on the optical disc, an information reproducing portion for obtaining a reproduced program information signal and reproduced absolute time data based on outputs from the optical reading head, a memory portion for storing the reproduced absolute time data, a reference time data supplying portion for supplying reference time data corresponding to the absolute time data, a data comparing portion for comparing the reproduced absolute time data read from the memory portion with the reference time data supplied from the reference time data supplying portion, a control signal producing portion for forming a reading position control signal in response to a comparison output from the data comparing portion, and a reading position control portion for controlling in response to the reading position control signal the reading position driving portion so as to cause the reading position set by the optical reading head on the optical disc to reach a position corresponding to the reference time data.


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