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.

Date of Patent:
Feb. 06, 1979

Filed:

Jul. 01, 1977
Applicant:
Inventors:

Jean-Pierre Huignard, Paris, FR;

Jean-Pierre Herriau, Paris, FR;

Francois Micheron, Paris, FR;

Assignee:

Thomson-CSF, Paris, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03H / ; G03H / ;
U.S. Cl.
CPC ...
350-364 ; 350-375 ; 365216 ;
Abstract

A holographic storage cell for storing volume holograms wherein a plate of either Bi.sub.12 SiO.sub.20 or Bi.sub.12 GeO.sub.20 is provided with electrodes producing an electric field transversed to the plate. These electrodes may be on opposite ends of the plate, or in the form of interdigitated combs. In one embodiment, such a cell is utilized as a holographic memory wherein the modulation of the object beam and the deflection of the reference and object beams are controlled electronically. The cell may also be utilized to perform calculations by superpositioning data to perform addition and substraction.


Find Patent Forward Citations

Huignard, Jean-Pierre. (1979). Holography using a bi.sub.12 sio or bi.sub.12 geo.sub.20 recording medium (U.S. Patent No. 4138189). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4138189

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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