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:
Aug. 30, 2011
Filed:
Oct. 29, 2008
Mei LI Hsieh, Taipei, TW;
Shiuan Huei Lin, Taipei, TW;
Jui Hsin Wang, Taipei, TW;
Ken Yuh Hsu, Taipei, TW;
Don Yau Chiang, Taipei, TW;
Mei Li Hsieh, Taipei, TW;
Shiuan Huei Lin, Taipei, TW;
Jui Hsin Wang, Taipei, TW;
Ken Yuh Hsu, Taipei, TW;
Don Yau Chiang, Taipei, TW;
CMC Magnetics Corporation, Taipei, TW;
National Chiao Tung University, Hsin Chu, TW;
Abstract
In a holographic information recording and reproducing apparatus, an optical fiber guides a reference beam toward a recording medium for holographic recording, and a precision rotator is turned, so that the reference beam is incident on the recording medium at different angles and interferes with a data-carrying signal beam to complete the recording of holographic information on the recording medium. To reproduce the holographic information, the optical fiber guides a reading beam, and the reading beam is incident on the recording medium at an angle the same as the reference beam for the recording to reproduce the holographic information stored on the recording medium. With the optical fiber and the precision rotator, a simplified light path system and a wide range of incident angles for the reference and reading beams may be achieved, and the transmissive, reflective, and 90-degree holographic storage techniques may be integrated in one single apparatus.