Patent ID: 6911970
Filing Date: 2005-06-28
Classification: G06F

Abstract:
1. A data inputting device for use in combination with a device requiring data input comprising: a plurality of keys; said keys having a static position and a depressed position; a plurality of contacts attached to each of said keys; a plurality of contact pads, each of said contact pads corresponding to one of said plurality of contacts on each of said keys and communicates therewith when said key is in said depressed position; a key depression detector communicating with each of said plurality of contact pads and detecting a key depression when one of said keys is moved to said depressed position once and at least one contact of said key is touched to at least one of said plurality of contact pads; said key depression detector detecting said key depression by repeatedly taking a measurement of the potential of all of said plurality of contact pads and determining said key depression only when said measurement of said potential is equal in at least two successive measurements over a defined period of time; and a logic value generator communicating with said key depression detector and producing a logic value on the basis of a specific contact from said plurality of contacts brought into communication with a corresponding contact pad, wherein data corresponding to the logic value is inputted to said device requiring data input.