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:
Nov. 02, 2010
Filed:
Jan. 11, 2007
Kazutatsu Tokuyama, Tokyo, JP;
Kazutatsu Tokuyama, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A recording and reproducing apparatus for recording data to and reproducing data from a hologram recording medium is provided. The recording and reproducing apparatus includes a light emitting unit for emitting light to be directed to the recording medium set at a predetermined position, a spatial light modulation unit for performing spatial light modulation on incident light by pixels, an image sensor for receiving incident light by pixels and converting the incident light into an electrical signal, an optical system for guiding the light emitted by the light emitting unit to the recording medium via the spatial light modulation unit while guiding, to the image sensor, light reflected from the recording medium in response to the light emitted by the light emitting unit, and a determination unit for controlling the spatial light modulation unit.