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Raised keys on a miniature keyboard
   
Document Number
US Patent 7394456
Issued Date
July 1, 2008
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Inventors
Kim; Suen (Barrington, IL)
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Abstract
A miniature keyboard wherein the keys are arranged in a way to improve data entry and decrease the chance of depressing multiple keys at a time. Accordingly, the height of the keys are patterned to decrease the chance of multiple key depressions thus increasing the accuracy of data input into the personal digital assistant. In one embodiment, the height of the keys is alternated down the individual rows of keys. In another embodiment, the height of the keys is alternated across individual columns of keys. Similarly, in another embodiment, the heights of the keys are arranged in a checkered pattern on the keyboard. In addition, another embodiment staggers the heights of the keys and incorporates embodiments mentioned above. By incorporating different key arrangements and alternating the height of the keys, key differentiation, key navigation, and data input accuracy is greatly improved due to the improved tactile feedback provided by the miniature keyboard.
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Number of Claims:
18
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Owner
Palm, Inc. (Sunnyvale, CA)
Published
July 1, 2008
Application Number
11/151,848
Filed
June 13, 2005
US Classification
345/168   341/21 341/23 341/27 345/169
Int'l Classification
G09G   5/00   (20060101)  
Examiner
Assistant Examiner
Attorney/Law Firm
USPTO Field of Search
345/168   345/169   341/21   341/23   341/27  
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