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:
Sep. 18, 2007
Filed:
Apr. 07, 2003
Applicants:
Esa Määttä, Viiala, FI;
Jari Saukko, Tampere, FI;
Henri Vähä-ypyä, Tampere, FI;
Inventors:
Assignee:
Nokia Corporation, Espoo, FI;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/94 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switch arrangement comprises a photoconductor to be illuminated. The switch arrangement also comprises a conductor which is intended to further transmit light escaping from the photoconductor and directed to the conductor by a local contact, wherein the conductor and the photoconductor are further under the control of an external force, arranged to move in relation to each other and to cause the development, loss or change of the contact in such a way that a detectable change is caused in the light guided through it.