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:
Jan. 01, 2013
Filed:
Dec. 29, 2010
John Erik Hershey, Ballston Lake, NY (US);
Kenneth Brakeley Welles, Scotia, NY (US);
John Anderson Fergus Ross, Niskayuna, NY (US);
Xiaolei Shi, Niskayuna, NY (US);
Zhiyuan Ren, Malta, NY (US);
Victor Petrovich Ostroverkhov, Ballston Lake, NY (US);
John Erik Hershey, Ballston Lake, NY (US);
Kenneth Brakeley Welles, Scotia, NY (US);
John Anderson Fergus Ross, Niskayuna, NY (US);
Xiaolei Shi, Niskayuna, NY (US);
Zhiyuan Ren, Malta, NY (US);
Victor Petrovich Ostroverkhov, Ballston Lake, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
Techniques are provided for increasing storage capacity in a holographic storage system. While typical holographic storage systems involve binary storage for each data position in a holographic disk, present techniques involve storing data such that more than two data levels may be recorded in each data position. In some embodiments, a recording beam directed to the disk may be adjusted to different power levels depending on the data level to be recorded. Furthermore, the recording time at a data position may be adjusted to increase the energy directed to the data position by increasing the amount of time the recording beam is impinged on the data position. Embodiments are suitable for different types of holographic storage, including dye-based medium.