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:
Nov. 22, 2011
Filed:
May. 09, 2006
Russell J. Wilcox, Natick, MA (US);
Gregory L. Goldfarb, San Francisco, CA (US);
Holly G. Gates, Somerville, MA (US);
Pehr C. Anderson, Wauwatosa, WI (US);
Russell J. Wilcox, Natick, MA (US);
Gregory L. Goldfarb, San Francisco, CA (US);
Holly G. Gates, Somerville, MA (US);
Pehr C. Anderson, Wauwatosa, WI (US);
E Ink Corporation, Cambridge, MA (US);
Abstract
A portable electronic device, for example a cellular telephone or a personal digital assistant, has an internal screen for the display of information, the electronic device also having an external screen arranged to receive information from the electronic device and being capable of displaying this information on an electro-optic medium. There is also provided a cellular telephone having a visual indicator comprising an electro-optic medium having at least two different display states, the electro-optic medium being arranged to change its display state when a call is received by the telephone.