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. 24, 1984
Filed:
Oct. 20, 1981
Applicant:
Inventors:
Jean F Clerc, 38240 Meylan, FR;
Jacques Robert, 92410 Ville d'Avray, FR;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340805 ; 340784 ; 340793 ; 350332 ; 358241 ;
Abstract
Process for the control of an optical characteristic of a material intercalated between two electrodes to which are applied excitation signals, wherein in order to bring about an excitation of the material a series of elementary signals is applied to the electrodes for increasing periods of time, each elementary signal either being equal to a constant or zero, all these elementary signals constituting a decomposition of the desired excitation into a given base. An application is in the field of optoelectronics and more particularly in the control of liquid crystal cells.