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Keyboard With Programmable Threshold Setting Disclosure Number: IPCOM000053118D
Original Publication Date: 1981-Sep-01
Included in the Prior Art Database: 2005-Feb-12

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Aaron, RT [+details]


Electronic keyboards utilizing capacitive sensing are susceptible to signal degradation caused by dust resulting in intermittent failures which are difficult to isolate by service personnel. By building in a programmable key sensing threshold, service personnel may readily check for marginal operation causing intermittent errors to become continuous errors.