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. 07, 2003
Filed:
Oct. 31, 2000
Toni Östergård, Turku, FI;
Jaakko Nousiainen, Marttila, FI;
Nokia Corporation, Espoo, FI;
Abstract
A double-sided keyboard having a first keymat and a second keymat located on two sides of a circuit board, wherein the first and second keymats share an activation mat located between the first keymat and the circuit board. The first keymat has a plurality of keys, and the second keymat has a plurality of keys so that any key can be used to activate the circuit board through the same activation mat. The double-sided keyboard can be used on the cover of an electronic device so that the first keymat is used to enter information in the electronic device when the cover is closed and the second keymat is used when the cover is open. Preferably,.the activation mat has a plurality of dome-shaped, electrically conducted sections which make contact with the circuit board when one of the keys is pressed.