Computer graphics processing and selective visual display system – Display peripheral interface input device – Including keyboard
Patent
1996-04-03
1998-02-10
Bayerl, Raymond J.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Including keyboard
200 5A, 200344, 200513, 200534, 400472, 400490, H01H 312, H01H 1370, B41J 512
Patent
active
057174296
ABSTRACT:
Portable electronic devices, such as notebook computers, are provided with the capability of a low profile and light weight keyboard, allowing greater reduction in the size and weight of portable computers without compromising the functionality. In specific embodiments, the present invention provides laptops, notebooks, and sub-notebooks with a low profile keyboard having a polymer top surface. In an embodiment of the invention, a structural rib 214 surrounds at least some portion of the key to advantageously provide a firm offset of the key top from the circuit board 206 for increased key travel over prior art designs. In another embodiment of the present invention, the keyboard key includes alignment pistons 218 affixed to the flexible key layer 202 and extend into holes in the circuit board 206 to provide advantages such as keeping the key's top surface flat, preventing the key from tilting or collapsing on only one or two sides.
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Coulon Kenneth E.
Faris Jeffrey E.
Bayerl Raymond J.
Donaldson Richard
Kesterson James
Petersen Bret J.
Texas Instruments Incorporated
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