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Browse Prior Art Database

DUAL KEYPAD DISPLAY BASED ON VIEWING ANGLE

IP.com Disclosure Number: IPCOM000009436D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2002-Aug-23
Document File: 2 page(s) / 67K

Publishing Venue

Motorola

Related People

Joseph PatiƱo: AUTHOR [+3]

Abstract

Keypads as used on two-way communication devices, telephones, computers, and the like require a specific size button to successfully display both alpha and numeric information. By incorporating the capability of displaying either the number or letter separately, the size of each can be increased or the keypad itself can be reduced in size.

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Developments Technical 69 MOTOROLA

DUAL KEYPAD DISPLAY BASED ON VIEWING ANGLE

by Joseph Patitio, John Buchalo and Val Jean Hillman

  Keypads as used on two-way communication devices, telephones, computers, and the like require a specific size button to successfully display both alpha and numeric information. By incorporating the capability of displaying either the number or letter separately, the size of each can be increased or the keypad itself can be reduced in size.

  By using existing angle of display technologies, a keypad can be constructed that, at one particular viewing angle, permits the user to see a number as associated with a button, whereas, at another viewing angle, permits the user to see a letter or group of letters associated with that same button.

  In this fashion, the keypad design can be con- structed such as to:

  1. Increase the size of the letters/numbers with- out increasing the size of the keypad.

  2. Reduce the size of the keypad buttons thus reducing the size of product, while not reducing the size of the letters/numbers.

  3. Offer additional buttons for dual use such as the * and # button for example which presently have no additional letters associated to them. Thus new button functions can be added without increasing the size of the keypad.

  4. Allow additional information to be displayed for a keypad button such as "C" and "Copy" to define the letter C or the command copy for a com- mand C input.

0 Molomla,lnc. ,999 65 September 1999

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