Browse Prior Art Database

Virtual Keyboard

IP.com Disclosure Number: IPCOM000100258D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Hirota, G: AUTHOR [+2]

Abstract

This article describes a concept of a new input method which enables a keyboard input without a physical keyboard. This is accomplished by a "virtual keyboard". The new features of this disclosure are as follows: -Concept of the virtual keyboard -Method to make the virtual keyboard possible Although ideas of a virtual keyboard already exist, they do not satisfy all the criteria of the virtual keyboard. The virtual keyboard should satisfy the following criteria: -The manipulation of input is not much different from the one on the physical keyboard. -There is no physical keyboard. -The configuration of keys is flexible. The first and the second criteria require that the virtual keyboard provide the physical keyboard's functionalities and essential interface without actually having a physical keyboard.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Virtual Keyboard

       This article describes a concept of a new input method
which enables a keyboard input without a physical keyboard. This is
accomplished by a "virtual keyboard". The new features of this
disclosure are as follows:
  -Concept of the virtual keyboard
  -Method to make the virtual keyboard possible
Although ideas of a virtual keyboard already exist, they do not
satisfy all the criteria of the virtual keyboard. The virtual
keyboard should satisfy the following criteria:
   -The manipulation of input is not much different from the one on
the physical keyboard.
  -There is no physical keyboard.
  -The configuration of keys is flexible.
The first and the second criteria require that the virtual keyboard
provide the physical keyboard's functionalities and essential
interface without actually having a physical keyboard. The essential
interface means that a user can input as he or she types a physical
keyboard. The third criterion says that in the configuration, the
positions and the size of the keys can be changed by software so that
a user or an application can customize them.

      The system consists of the four components which are:
1) The device which measures the position and the orientation of both
hands
2) The device which measures the angles of the joints of fingers and
the angles between fingers
 3) The software which converts the data given by the above two parts
to positions and figures of hands according to previously calculated
calibration data
4) The software that detects...