Browse Prior Art Database

Display scrolling method for PDA

IP.com Disclosure Number: IPCOM000123691D
Original Publication Date: 1999-Mar-01
Included in the Prior Art Database: 2005-Apr-05
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Ishii, S: AUTHOR [+2]

Abstract

Disclosure is the scrolling method for the PDA which has a display.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Display scrolling method for PDA

   Disclosure is the scrolling method for the PDA which has
a display.

   This scrolling method can scroll the display by moving
the PDA.

   The typical characteristic of this scrolling method is
shown in Figure 1.  If the user move the PDA to right side, the
display is also scrolled to right side.  If the user move the PDA to
downward, the display is scrolled to downward.  This is like seeing a
part of documentation through a window and user is moving a window to
see other part of documentation.

   The PDA has a gravity sensor to detect the movement
of the PDA.  The display is scrolled by the output of this sensor.
It is imagined that the user use the PDA in train or car where the
user is always shook.  In this situation, a gravity sensor in the PDA
is not sufficient.  The display is scrolled by the vibration from
train or car.

   1 additional gravity sensor solve this problem.  User
also have a gravity sensor to detect the movement of the user.  The
output from the sensor on PDA and output from the sensor on user can
define the relative movement of PDA to user.  The 1 additional
gravity sensor can be mounted on the PDA case and user wear the case
on its body.  This is one example of this application.