Keyboard
AssigneeMichael Phillips
InventorsMichael Phillips, Rodney H. Neumann
Life of this patent
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Abstract
A keyboard assembly having keys which provide input signals to a processing unit includes a flexible printed circuit and underlying mat which enable the keyboard to be warped upward at its center by a system of cams which are driven by a controlled motor. Such warping induces rotation of the forearms of the user so as to have ergonomic value with respect to repetitive stress trauma.
Claims10
A keyboard assembly having keys defining a keyboard for use in providing input signals to a processing unit, comprising:
- flexible circuit means forming a substrate of said keyboard;
- a flexible mat supporting said substrate;
- resilient means for connecting said mat to said keyboard;
- and
- automatically controlled means for warping said mat and said substrate upward in a central portion thereof during lengthy use of said keyboard in order to induce forearm rotation of the user.
A keyboard assembly having an array of keys used to provide input signals to a processing unit, said keyboard having a rigid frame including end members and a floor, comprising;
- flexible substrate means forming electrical circuits for said keys;
- a generally rectangular, flexible mat underlying and supporting said substrate and having a central portion extending from front to rear of said substrate;
- resilient means connecting said mat to said end members to hold said mat taunt over said floor;
- and
- controlled means for automatically warping said central portion of said mat and said substrate overlying said central portion upwardly in order to induce forearm rotation of a user who is operating said keyboard.
Dependencies are inferred from the claim text.