Information processing system

An information processing system which displays an object on a display, comprising:

• an integral input and display unit comprising a display and a tablet having an input face overlaid on a display face of said display, the input and display face being disposed substantially horizontally;
• an additional display device whose display screen is upright with respect to said integral input and display unit;
• pen detection means for detecting the user picking up a pen of said tablet;
• and
• display position determination means, when an object is to be presented to the user, for displaying the object on said integral input and display unit if it is recognized that the user picks up the pen based on a detection result of said pen detection means.

An information processing system which displays an object on a display, comprising:

• an integral input and display unit comprising a display and a tablet having an input face overlaid on a display face of said display, the input and display face being disposed substantially horizontally;
• an additional display device whose display screen is upright with respect to said integral input and display unit;
• keyboard position detection means for detecting a relative position between the user and a keyboard;
• and
• display position determination means, when an object is to be presented to the user, for displaying the object on said additional display device if it is recognized that the keyboard is placed in front of the user based on a detection result of said keyboard detection means.

An information processing system which displays an object on a display comprising:

• a display;
• a camera for taking a picture on a display face of said display;
• and
• a processor connected to said display and said camera, said processor comprising:
• means for displaying a document represented by document data to be processed on said display;
• means for recognizing a hand of an operator and a position and motion of the hand contained in the picture taken by said camera;
• means responsive to the recognized hand position for determining whether or not the operator hand is placed on a display position of the document on the display face of said display;
• and
• display operation means, if the operator hand is placed on the display position of the document, responsive to motion of the operator hand subsequently recognized for performing corresponding operation on the document on which the hand is placed.

An information processing system which displays an object on a display, comprising:

• a display;
• a camera for taking a picture on a display face of said display;
• and
• a processor connected to said display and said camera, said processor including:
• means for displaying a document containing a plurality of pages represented by document data to be processed on said display;
• means for recognizing a hand of an operator and a position and motion of the hand contained in the picture taken by said camera;
• means responsive to the recognized hand position for determining whether or not the operator hand is placed on a display position of the document on the display face of said display;
• and
• display operation means, when the operator hand is placed on the display position of the document, for displaying a part or all of each of the pages of the document on which the operator hand is placed in sequence on said display if motion of the operator hand subsequently recognized is a wave of a thumb of the operator.