Keyboard
First Claim
Patent Images
1. 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.
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Accused Products
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.
99 Citations
10 Claims
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1. A keyboard assembly having keys defining a keyboard for use in providing input signals to a processing unit, comprising:
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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. - View Dependent Claims (2, 3, 4)
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5. 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;
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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. - View Dependent Claims (6, 7, 8, 9, 10)
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Specification