Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Patent
1991-02-04
1992-10-06
Yusko, Donald J.
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
341 22, 362 31, 200317, H01H 1370, H01H 918
Patent
active
051535904
ABSTRACT:
A keypad apparatus for a radio telephone has the keypad circuit (200) inked onto the lightpipe (105), thereby, allowing freedom in designing the shape of the keypad (103) and reducing the amount of circuitry required on the main circuit board (109) contained within the housing (107) of the radiotelephone.
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Design News, Sep. 18, 1988, pp. 146-147, 3-D Circuit Boards Optimize Use of Space, this article describes the use of conductive ink for use in circuits.
Design News, Technology Focus, Apr. 23, 1990, pp. 56-58, Conductive Adhesives Do Double Duty, this article describes the use of conductive adhesives for use in circuits.
Micro Touch Systems, Inc, Woburn, Mass., Touch Screens Diversity, by James D. Logan, Nov. 1, 1985, this article discusses the use of resistive networks to detect touching of a screen.
EDN, Oct. 16, 1986, pp. 195-202, Touchscreen Displays Suit Multifarious Applications, This article discusses the use of resistive networks to detect touching of a screen.
Dailey Kirk W.
Kelly Robert H.
Krakovsky Michael
Motorola Inc.
Yusko Donald J.
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