  The soft keyboards are onscreen representation of physical keyboard having
alphanumeric characters and other controls. The user operates the soft keyboard
with the mouse, a stylus or other pointing device. The soft keys dont have any
mechanical component.
  The soft keyboards are used in many public places for informational purpose,
educational systems and financial transactional systems. A soft keyboard is
convenient in some cases where a hard keyboard is difficult to manage. The soft
keyboard is a substitute of a physical keyboard and is displayed on the screen.
It displays the same type of alphanumeric and control keys like the keys on the
actual keyboard.
  There are many inventions on a soft keyboard which makes the soft keyboard
more efficient and effective. This article illustrates some inventions on soft
keyboards from US patent database.
