Browse Prior Art Database

Image Orientation Sensing and Correction for Notepads

IP.com Disclosure Number: IPCOM000104294D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2005-Mar-19
Document File: 1 page(s) / 28K

Publishing Venue

IBM

Related People

Balasubramanian, PS: AUTHOR [+3]

Abstract

Small computer software traditionally assumes the screen will be in the conventional horizontal (landscape) orientation. There are many instances where a vertical (portrait) orientation, similar to a sheet of paper, is more appropriate. CRT displays are hard to rotate, but portable notebook and especially tablet display are very easy to rotate. This disclosure shows how it is possible to sense the orientation of the display.

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Image Orientation Sensing and Correction for Notepads

      Small computer software traditionally assumes the screen will
be in the conventional horizontal (landscape) orientation.  There are
many instances where a vertical (portrait) orientation, similar to a
sheet of paper, is more appropriate.  CRT displays are hard to
rotate, but portable notebook and especially tablet display are very
easy to rotate.  This disclosure shows how it is possible to sense
the orientation of the display.

      There are several methods of sensing the orientation of the
display, depending upon the physical or mechanical construction.  One
way is to mount the display in a rotating mount with a switch sensor
to detect which orientation is current.  Another method is to use a
gravity sensitive switch, such as a mercury switch, to detect the
orientation of the screen.  The display controller software can make
the appropriate corrections to the screen data  when the current
orientation is detected.  With the correct configuration of sensors,
it should be possibleto detect the degree and angle of rotation and
correct for any angle that the note book is resting at through 360
degrees and therefore maintain the correct screen display regardless
of how the notebook is held or positioned.

Disclosed Anonymously.