Browse Prior Art Database

One Hand Cursor Control for Palmtop Devices using Trackpoint

IP.com Disclosure Number: IPCOM000014569D
Original Publication Date: 1999-Sep-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 2 page(s) / 85K

Publishing Venue

IBM

Related People

Pla, C: AUTHOR [+2]

Abstract

Personal Digital Assistants (PDA) is a growing class of computing devices. This disclosure addresses a need for the palmtop class of PDA devices devices that typically are held in one hand while user interaction is done by the other hand via buttons and/or stylus (ex: IBM WorkPad). The ability to use these devices to access data (and in a limited way to input data) using one hand will make these devices substantially more user friendly. A typical use that demonstrates this need is when a user holds a phone and needs to access information on her PDA at the same time. The invention disclosed here addresses the above need user interaction with one hand. We suggest to put a trackpoint device at the back of the palmtop device as shown in the picture here: As the pictures indicate, a user manipulates the Trackpoint with her finger which is located at the back of the device. For selection, a few alternatives can be realized: selection button by thumb, by buttons located next to the TrackPoint or by pressing the TrackPoint. The location of the TrackPoint will be optimized for typical user and will be centered in order to allow either left or right hand operation. A software utility will be provided in order to 1

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One Hand Cursor Control for Palmtop Devices using Trackpoint

     Personal Digital Assistants (PDA) is a growing class of computing devices. This disclosure addresses a need for the palmtop class of PDA devices -- devices that typically are held in one hand while user interaction is done by the other hand via buttons and/or stylus (ex: IBM WorkPad). The ability to use these devices to access data (and in a limited way to input data) using one hand will make these devices substantially more user friendly. A typical use that demonstrates this need is when a user holds a phone and needs to access information on her PDA at the same time.

The invention disclosed here addresses the above need -- user interaction with one hand. We suggest to put a trackpoint device at the back of the palmtop device as shown in the picture here:

As the pictures indicate, a user manipulates the Trackpoint with her finger which is located at the back of the device. For selection, a few alternatives can be realized: selection button by thumb, by buttons located next to the TrackPoint or by pressing the TrackPoint. The location of the TrackPoint will be optimized for typical user and will be centered in order to allow either left or right hand operation. A software utility will be provided in order to

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tune the vertical movement of the cursor to the user's movement of the finger. This type software is used by Logitech for thei...