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:
Apr. 06, 1976
Filed:
Mar. 12, 1974
Suehiro Miyazaki, Yokohama, JA;
Itsuo Matsubara, Fujisawa, JA;
Masahiro Moriwaki, Tokyo, JA;
Mitsuhito Sakaguchi, Tokyo, JA;
Nobuo Nishida, Tokyo, JA;
Nippon Telegraph & Telephone Public Corporation, Tokyo, JA;
Nippon Electric Company Limited, Tokyo, JA;
Abstract
Relatively large hologram storage plates, e.g., those storing a large number of discrete entries such as character definitions for a large character set, comprise an array of mini-holograms arranged in different memory plate sections. A different photodiode array is associated with each hologram plate section (for efficiency, some elements of different diode arrays may be common). When the stored contents of any mini-hologram are interrogated by a coherent light beam, the stored information is derived via the associated photodiode array and converged (as by OR logic) to memory output terminals.