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:
Dec. 02, 1986
Filed:
Oct. 11, 1983
Applicant:
Inventors:
John L Glasper, Ledbury, GB;
Ian A Shanks, Pavenham, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340752 ; 340783 ; 340784 ; 3503 / ;
Abstract
A polar coordinate display of full 360.degree. arc comprises an electrically responsive medium between two electrode bearing substrates. One set of electrodes is configured as a number of concentric spirals, allowing connection at the display periphery. The other set of electrodes may be radial or counter spiral. The display may be addressed using a set of isogonal signals--for example psuedo-random binary sequence coded signals.
Glasper, John. (1986). Electronic display suitable for polar coordinate representations (U.S. Patent No. 4626840). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4626840
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile