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Browse Prior Art Database

TACTUAL PORTABLE KEYBOARD

IP.com Disclosure Number: IPCOM000007702D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-16
Document File: 2 page(s) / 101K

Publishing Venue

Motorola

Related People

Michael N. Gurevich: AUTHOR [+2]

Abstract

The market place has shown that consumers demand ever smaller computers. Impressive achieve- ments have been made in the area of computer min- iaturization However, the keyboard is the one com- ponent that has not successfully been reduced in size.

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MOTOROLA Technical Developments

TACTUAL PORTABLE KEYBOARD

by Michael N. Gurevich and David J. Fruin

  The market place has shown that consumers demand ever smaller computers. Impressive achieve- ments have been made in the area of computer min- iaturization However, the keyboard is the one com- ponent that has not successfully been reduced in size.

  Current palm-top and the smaller lap-top com- puters have had to sacrifice the ergonomics of the keyboard. In all known portable implementation of keyboards, the tactual feel and size of keys are compromised. This is because ofthe fact that a Molly equipped keyboard must have at least 101 keys and to make a keyboard portable the keys have to be made small.

  The invention of the Tactual Portable Keyboard described herein allows portable implementation of keyboards with virtually the same tactual feel as stationary keyboards have.

  In the Tactual Portable Keyboard keys are implemented as Fingertip Keys. The Fingertip Keys are worn on the user's fingertips. The Fingertip Key provides the user with the tactual feel and, along with a keypad, it allows to identify the position of a keystroke on the pad.

  One of the possible implementations of a Tac- tual Portable Keyboard is shown on Figure 1. The foldable keypad is composed of a number of keypad segments 1,2,3. Each segment contains a number of conductive Key Areas that represent positions ofkeys on a keyboard of a standard size. When it is unfolded the keypad makes rows (rl through r3) and columns (cl through c6) of Key Areas. The Fingertip Key (fl) is composed of a conductive outside cover and an internal push button. This button provides the user with the proper tactual feel when it is depressed. Furthermore, in a particular implementation the Fin- gertip Key can provide the user with the tactual feed-

back when the Fingertip Key is positioned on the edge or in a middle of...