Method and apparatus for multi-mode handwritten input and hand directed control of a computing device

• US 6,128,007 A
• Filed: 07/29/1996
• Issued: 10/03/2000
• Est. Priority Date: 07/29/1996
• Status: Expired due to Term

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Seybold, John L.
• Primary Examiner(s): CHOW, DOON Y
• Application Number:
  US08/681,687
• Time in Patent Office: 1,527 Days
• Field of Search: 345/179, 345/180, 345/181, 345/182, 345/173, 345/156, 345/168, 345/145, 341/22, 178/18, 178/19
• US Class Current: 345/179
• CPC Class Codes: G06F 2221/2105 Dual mode as a secondary aspect
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/046 by electromagnetic means
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures

Abstract

Coordinates from a digitizing tablet are processed in two modes. In a first mode (denoted the Cursor Mode for convenience) the digitizing tablet operates similar to the well know computer "mouse" allowing the user to move the cursor around the display screen to select buttons and controls by mapping the coordinates to the display area of the monitor. In a second mode (denoted as the Input Mode for convenience), the digitizing tablet coordinates (especially generated by the motion of a pen) are mapped to an input area within a graphical interface of a computer program designed to accept handwritten input. Selection between the first mode and the second mode is made manually by switch input or automatically via analysis of the coordinates or by differentiating field sensing digitization from touch sensitive digitization.

Claims

1. A method, comprising the steps of:

receiving coordinate information in a cursor input area;

processing pressure sensitive coordinate to create cursor-coordinate information in a non-inking cursor mode for a display area of a graphical interface for a computer program;

receiving coordinate information in an inking input area, wherein the cursor input area and the inking input area are coextensive;

processing coordinate information received in the inking input area, to create ink input information in a inking input mode for an input area of the graphical interface for the computer program; and

switchlessly activating one of the input areas to enable automatic detection of the input mode.

2. The method of claim 1, which includes the step of launching the computer program having the input area within the graphical interface when the computer program is not yet running and responsive to a change of operation from the cursor mode to the inking input mode mode.

3. The method of claim 1, which includes the step of presenting the graphical interface with the input area in a foreground position within the display area when the computer program is running and a change of operation from the cursor mode to the inking input mode mode is detected.

4. The method of claim 1, which includes the step of presenting a first image at a corresponding display location within the display area in the cursor mode and presenting a inking input mode image at a corresponding input location within the input area of the graphical interface of the computer program in the second mode.

5. The method according to claim 1 further comprising automatically switching from the non-inking cursor mode to an inking input mode when field sensitive coordinate information is detected.

6. The method according to claim 5 wherein the step of automatically switching from the non-inking cursor mode to the inking input mode occurs only when the field sensitive coordinate information is detected within a handwriting entry area.

7. The method according to claim 5 further comprising returning to the non-inking cursor mode when field sensitive coordinate information is no longer detected.

8. A method for controlling data input on a digitizing device using an input device, comprising the steps of:

receiving coordinate information in a cursor input area and coordinate information in an inking input area, wherein the cursor input area and the inking area are coextensive;

processing coordinate information received from the cursor input area to create cursor coordinate information and coordinate information received from the inking input area to create ink input information representing coordinates of a digitizing area of a digitizing device to map the coordinate information from the digitizing area to a display area of a display device for presentation of an image at a corresponding display location in a non-inking cursor mode, and in an inking input mode to map coordinate information from the digitizing area to an input area of a graphical interface for a computer program capable of accepting handwritten or hand-drawn input for presentation of a second image at a corresponding input location to facilitate entry of the handwritten or hand-drawn input within the input area of the graphical interface; and

switchlessly activating one of the input areas to enable automatic detection of the input mode in response to the type of input device being used to provide the coordinate information.

9. The method of claim 8, which includes the step of launching the computer program having the input area within the graphical interface when the computer program is not yet running and responsive to a change of operation from the cursor mode to the inking input mode mode.

10. The method of claim 8, which includes the step of presenting the graphical interface with the input area in a foreground position within the display area when the computer program is running and a change of operation from the cursor mode to the inking input mode mode is detected.

11. The method of claim 8, which includes the step of echoing or displaying on an integral tablet display the presentation of the second image at the corresponding input location on the tablet to facilitate entry of the handwritten or hand-drawn input.

12. A device, comprising:

a cursor input area for receiving coordinate information;

an inking input are for receiving coordinate information, wherein the cursor input area and thinking input area are coextensive;

a field sensing and pressure sensing digitizing element having a digitizing area and capable of providing field sensitive and pressure sensitive coordinate information representing locations of activity within the digitizing area; and

processing circuitry capable of mapping pressure sensitive coordinate information to a display area of a display device and for mapping field sensitive coordinate information to an input area of a graphical interface for a computer program, the processing circuitry switchlessly enabling activation of one of the input areas.

13. The device of claim 12, which includes a memory having the computer program stored therein and wherein the processing circuitry is capable of launching the computer program when the computer program is not yet running and responsive to a detection of field sensitive coordinate information.

14. The device of claim 12, which includes a display for presenting the graphical interface of the computer program and wherein the processing circuitry is capable of presenting the graphical interface with the input area in a foreground position within the display area when the computer program is running and responsive to a detection of field sensitive coordinate information.

15. A device, comprising:

a digitizing input device, having a cursor input area, a capacitance sensing layer, an input inking area and an electromagnetic sensing layer, wherein the cursor and inking input provide pressure sensitive coordinate information and field sensitive coordinate information representing handwritten or hand directed input;

a memory having an operating system and application programs stored therein, and including at least one application program capable of accepting handwritten input;

a display device having a display area for presenting icons for command and control functions and icons representing the application programs, for presenting graphical interfaces for one or more running application programs; and

digital processing circuitry including a programmable digital processing device capable of processing the pressure sensitive coordinate information to map the pressure sensitive coordinate information to the display area of the display device in a first mode and in a second mode for mapping the field sensitive coordinate information to an input area of a graphical interface for the at least one application program capable of accepting handwritten input, the digital processing circuitry automatically and switchlessly changing from the first mode to the second mode.

16. The device of claim 15, wherein the digital processing circuitry is capable of launching a predetermined application program capable of accepting handwritten input when such application program is not yet running and responsive to a change from the non-inking cursor mode to the inking input mode.

17. The device of claim 15, wherein the digital processing circuitry is capable of presenting the graphical interface with the input area in a foreground position within the display area when the application program capable of accepting handwritten input is running and responsive to a change from the first mode to the second mode.

18. The device according to claim 15 wherein the programmable digital processing device is further capable of automatically switching from the non-inking cursor mode to the inking input mode when field sensitive coordinate information is detected.

19. The device according to claim 18 wherein the programmable digital processing device is further capable of returning to the non-inking cursor mode when field sensitive coordinate information is no longer detected.

20. The method according to claim 18 wherein the step of automatically switching from the non-inking cursor mode to the inking input mode occurs only when the field sensitive coordinate information is detected within a handwriting entry area.

21. A method of automatically controlling movement between a cursor mode and an input mode on a digitizing tablet using an input device, the method comprising:

providing a cursor input area and an inking input area on the digitizing tablet, wherein the cursor and inking input areas are coextensive;

providing a capacitance sensing layer and an electromagnetic sensing layer on the digitizing tablet;

operating in an input mode when field activity is detected prior to tablet activity with the digitizing tablet;

operating in a cursor mode when tablet activity with the digitizing tablet is detected without prior field activity; and

automatically switching between the input mode and the cursor mode in response to the input device being used.

22. The method according to claim 21 wherein the step of operating in an inking input mode further comprises:

sending field sensitive coordinate information to a computer; and

mapping the field sensitive coordinate information to an input area within a graphical interface of a computer program.

23. The method according to claim 22 further comprising echoing the field sensitive coordinate information to a transparent digitizing surface and integral tablet display.

24. The method according to claim 21 wherein the step of operating in a non-inking cursor mode further comprises:

sending pressure sensitive coordinate information to a computer; and

mapping the pressure sensitive coordinate information to a display area of a screen.

25. The method according to claim 24 further comprising echoing the pressure sensitive coordinate information to a transparent digitizing surface and integral tablet display.

26. The method according to claim 21 further comprising providing a stylus which contains a magnet, that can be sensed by the electromagnetic sensing layer, to produce field activity prior to tablet activity with the digitizing tablet.

27. The method according to claim 21 further comprising providing a stylus which contains a coil and associated circuitry, that can be sensed by the electromagnetic sensing layer, to produce field activity prior to tablet activity with the digitizing tablet.

28. The method according to claim 21 further comprising integrating a transparent digitizing surface with a tablet to echo a motion of a stylus by representing electronically on an integral tablet display where the stylus has touched the transparent digitizing surface.

29. The method according to claim 28 wherein areas in which the stylus has touched the transparent digitizing surface are echoed in the non-inking cursor mode to create cursor coordinate information and the inking input mode to create ink input information.

30. The method according to claim 28 wherein the integral tablet display only echoes the motion of the stylus to create ink input information when operating in the inking input mode.