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:
May. 22, 2007
Filed:
Feb. 14, 2002
Applicant:
Yorio Takahashi, Onsen-gun, JP;
Inventor:
Yorio Takahashi, Onsen-gun, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/085 (2006.01);
U.S. Cl.
CPC ...
Abstract
The direction in which an information disk apparatus (for example, a DVD-ROM player) is installed is judged without employing a sensor. A controller measures a number of track crossings when a reading unit is moved by a driving unit in a direction corresponding to the radius of an optical disk for a predetermined period of time, and judges a direction in which the DVD-ROM player is installed on the basis of the measured number of track crossings.
Takahashi, Yorio. (2007). Information disk device and method for detecting direction of installed information disk device (U.S. Patent No. 7221635). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7221635
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile