Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1996-04-01
1998-03-17
Hofsass, Jeffery
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
341 34, 200 5A, H03K 1794
Patent
active
057292213
ABSTRACT:
A keypad configuration for an electronic device has a housing (180) with one or more push buttons (110) having centers (113), a maximum radius (115), and a maximum height (215). A specific area (118) surrounds each push button and has a minimum radius (129) that is at least five times as long as the maximum radius of the push button or at least three times as long as the maximum height of the push button. No additional push buttons are within this specific area. The size, height, and spacing of the push buttons provide a point contact sensation to a user's fingertip, which prevents a user from pressing more than one key at a time and provides space for alphanumeric labels beside each push button. This keypad configuration is particularly suited for portable electronic devices where a small keypad is desirable, such as cellular telephones.
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Magnavox AZ 2615 Portable CD Mini System Operating Manual product brochure; Dec. 1994.
Errichiello Dominic
Krolopp Rudy
Reardon, deceased Thomas C.
Chen Sylvia
Hill Andrew
Hofsass Jeffery
Motorola Inc.
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