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. 18, 1995
Filed:
Jun. 29, 1994
Applicant:
Inventor:
Jari Muurinen, Pernio, FI;
Assignee:
Nokia Mobile Phones Ltd., Salo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
200314 ; 200310 ; 200311 ; 200312 ; 200D / ;
Abstract
An illuminated keyboard in which the keys are operable in at least two different modes. Each key is provided with symbols or areas of color which denote the different modes. The symbols or areas are selectively illuminated depending upon which mode is selected. Thus, in one mode, one area of the keys will be illuminated, while in another mode, another area of the keys will be illuminated. Thus, only the symbols or areas of color on denoting a selected mode are differentially visibly distinguishable by the user, assisting the user to press the correct key, in any selected mode.
Published as:
FI910419L; EP0508563A1; FI88345B; FI88345C; JPH06111661A; US5408060A; EP0508563B1; DE69213293D1; DE69213293T2;