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:
Jul. 13, 2004
Filed:
Feb. 20, 2002
Takayuki Ono, Osaka, JP;
Funai Electric Co., Ltd., Osaka, JP;
Abstract
A disk apparatus includes a DSP . The DSP controls each circuit component under the instruction from an MCU . When a braking pulse is applied to a driver at the end of a jump, a corresponding tracking actuator control voltage is supplied to a tracking actuator . Then a DSP core determines whether the TE signal level becomes equal to or below the predetermined value within a predetermined period shorter than the zero crossing cycle of the TE signal. In case the TE signal level does not become equal to or below the predetermined value within the predetermined period, the DSP core determines that the travel direction of an objective lens with respect to a disk is reversed and applies a correction pulse having a polarity opposite to that of the braking pulse thus accelerating the objective lens
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile