Ward; Jean R., et. al.
Date of Patent: Feb. 13, 1996
Inventors:
Assignee:
Appl. Number: 90US-613416
Filed: Nov. 13, 1990
Int. Cl.-6
U.S. Cl.
US4028695 6/1977 Saich US4202041 5/1989 Kaplow et al US4562304 12/1985 Ward et al US4587633 5/1986 Wang et al US4602286 7/1986 Kellar et al US4641354 2/1987 Fukunaga et al US4803463 2/1989 Sado US4839634 6/1989 More et al US4859995 8/1989 Hansen et al US4899136 2/1990 Beard et al US4901221 2/1990 Kodosky et al US4972496 11/1990 Sklarew
EP0254561A2 1/1988 EP0271280 6/1988 EP0395469 10/1990 JP2127720 7/1990 WOWO8911695 11/1989
Brad A. Myers; "Creating Interaction Techniques by Demonstration"; IEE CG&A; Sep. 1987; pp. 51-60.
Randall B. Smith; "Experiences with the Alternate Reality Kit: An example of the tension between literalism and magic"; IEEE CG&A; Sep. 1989; pp. 42-50.
Apple Computer, Macintosh Plus Owner's Guide, 1987, pp. 72-73, 148-149.
Baran, "Agilis Hand-Held Workstations: Computing Power in the Field", Byte, Aug. 1989, pp. 91-94.
Fisher, "New Computer Reads Handwriting", New York Times, Sep. 28, 1989.
Microsoft Corp., "Microsoft Windows Desktop Applications User's Guide", pp. 63-67, in Microsoft Windows User's Guide, Version 2.0, 1987.
Schmeupe, "A Pair of Digitizing Tablets", Macworld, Mar. 1987, pp. 144-145.
Ward & Philips, "Digitizer Technology: Performance Characteristics and the Effects on the User Interface", IEEE Computer Graphics and Applications, Apr. 1987, pp. 31-44.
Berlis & Borden, "Building a Better Mouse", Macuser, Oct. 1989, pp. 124-139.
IBM Technical Disclosure Bulletin, vol. 32, No. 10B, Mar. 1990, (Armonk, US) "Briefcase icon for take-home and disconnected user support" pp. 88-89.
Primary Examiner - Weldon; Ulysses
Assistant Examiner - Fatahiyar; M.
Attorney, Agent, or Firm - Milik; Kenneth L.
A computer system having a digitizing tablet overlaying the display screen. The tablet serves as a user's primary input device. Various features of the system make it possible for the user to run and interact with standard programs designed for keystroke and mouse input and not designed for use with a tablet. In addition to the main processor, on which the user's programs are executed, there is an interface processor. In addition to a standard display buffer, there is an ink plane buffer for interface display data that is combined with the data from the standard display buffer on a pixel-by-pixel basis according to data from a mask plane buffer. The interface processor manages input from the tablet, presents feedback to the user by means of the ink and mask planes, and provides keystroke and mouse data to the main processor as if from a standard keyboard controller. The interface processor presents the user with a collection of simulated devices, including standard devices such as a keyboard and a mouse. A nonstandard simulated device performs character recognition, permitting handwritten characters to be used for program input. During interaction with one of the user's programs, the user can activate and deactivate simulated devices (by removing them from and returning them to a device tray) and can make adjustments in their operation and location on the screen.
18 Claims, 12 Drawing Figures
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