Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 12, 2008
Patent Application Number
11017926
Date Filed
December 22, 2004
Patent Primary Examiner
Patent abstract
A method and a device for reading out keys of a keyboard. The read-out is realised by randomly generating a scanning pattern comprising for each row and column a read-out value to be applied on the rows and columns. The scanning pattern is preferably changed after having been applied to the keys. After application of the randomly generated pattern, the verification routine is applied in order to identify the selected keys.
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