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:
Jan. 09, 2001
Filed:
Nov. 18, 1998
Hitoshi Ogata, Sakai, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A disk recording or playback device has mounted on a chassis a pickup for detecting addresses on a disk, and a sensor switch SW for detecting the pickup as brought to the inner peripheral side of the disk. The pickup is moved toward a lead-in area of the disk to turn on the switch SW, thereafter reversely moved and caused to overrun for a predetermined period of time from a position where the switch SW is turned off. The pickup reads an address on the disk and is thereafter returned. When the address is outside a target region within the lead-in area, the pickup is repeatedly moved toward the lead-in area again with the overrun time altered. The overrun time is stored which enables the pickup to read an address within the target region upon overrunning.