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:
Jun. 29, 2010
Filed:
Nov. 27, 2006
Katsuhisa Ogawa, Machida, JP;
Katsuhisa Ogawa, Machida, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A servo controlling method for controlling an information processing apparatus using a hologram. The method includes a step of irradiating a holographic recording medium with light having a first wavelength and irradiating the holographic recording medium with light having a second wavelength, different from the first wavelength, a step of directing first return light by the light of the first wavelength and second return light by the light of the second wavelength to be incident on the same light receiving element, and a step of performing servo control by separating the first return light from the second return light at the light receiving element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile