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. 14, 2003
Filed:
Dec. 21, 2000
Terho Kaikuranta, Piispanristi, FI;
Seppo Salminen, Turku, FI;
Bror Svarfvar, Kaarina, FI;
Petri Vuori, Salo, FI;
Nokia Mobile Phones Ltd., Espoo, FI;
Abstract
A keypad arrangement for an electronic device comprises a keypad comprising activatable keys. It comprises also input signal means ( ) for bringing an electric input signal to the keypad, and signal conversion means ( ) for responding to a key activation by selectively converting the input signal into an electric output signal the value of which depends on the activated key. Additionally there are output signal detection means ( ) for detecting the value of the electric output signal. The arrangement comprises a first electromagnetic coupling ( ) between the input signal means and the signal conversion means, and a second electromagnetic coupling ( ) between the signal conversion means and the output signal detection means.