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:
Oct. 16, 2012
Filed:
Nov. 07, 2007
Applicants:
Robert W. Zehner, Belmont, MA (US);
Karl R. Amundson, Cambridge, MA (US);
Theodore A. Sjodin, Waltham, MA (US);
Holly G. Gates, Somerville, MA (US);
Inventors:
Robert W. Zehner, Belmont, MA (US);
Karl R. Amundson, Cambridge, MA (US);
Theodore A. Sjodin, Waltham, MA (US);
Holly G. Gates, Somerville, MA (US);
Assignee:
E INK Corporation, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bistable electro-optic display is updated by writing an image on the display using a first drive scheme capable of driving pixels to multiple gray levels, and thereafter varied using a second drive scheme using only two gray levels, at least one of which is not an extreme optical state of the pixel.