Computer device with digitizer calibration system and method

• US 20070075988A1
• Filed: 09/30/2005
• Published: 04/05/2007
• Est. Priority Date: 09/30/2005
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Homer, Steven, Mohi, Pasha, Love, Scott
• Granted Patent: US 8,712,717 B2
• Time in Patent Office: Days
• US Class Current: 345/179
• CPC Class Codes: G01D 18/002 Automatic recalibration G01D18/008 takes precedence
• CPC Class Codes: G01R 23/15 Indicating that frequency of pulses is either above or below a predetermined value or within or outside a predetermined range of values, by making use of non-linear or digital elements (indicating that pulse width is above or below a certain limit)
• CPC Class Codes: G06F 13/00 Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units interface circuits for specific input/output devices G06F3/00 ; multiprogram control therefor G06F9/46; multiprocessor systems G06F15/16
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G16Z 99/00 Subject matter not provided for in other main groups of this subclass
• CPC Class Codes: H04B 17/12 of transmit antennas, e.g. of the amplitude or phase

Abstract

A computer device comprises a calibration module adapted to detect an input frequency for at least one input mode of a digitizer device. The calibration module is configured to determine whether the input frequency is within a frequency tolerance band corresponding to the at least one input mode.

Claims

1. A computer device, comprising:

a calibration module adapted to detect an input frequency for at least one input mode of a digitizer device, the calibration module configured to determine whether the input frequency is within a frequency tolerance band corresponding to the at least one input mode.

2. The system of claim 1, wherein the calibration module is adapted to associate the detected input frequency to the at least one input mode.

3. The system of claim 1, wherein the calibration module is adapted to adjust the frequency tolerance band based on the detected input frequency.

4. The system of claim 1, wherein the calibration module is adapted to display a prompt requesting actuation of the digitizer device in the at least one input mode.

5. The system of claim 1, wherein the calibration module is adapted to shift the frequency tolerance band to center the detected input frequency within the frequency tolerance band.

6. The system of claim 1, wherein the calibration module is adapted to initiate calibration of the computer device to the digitizer device pursuant to a predetermined schedule.

7. The system of claim 1, wherein the calibration module is adapted to initiate calibration of the computer device to the digitizer device in response to a user input.

8. The system of claim 1, wherein the calibration module is configured to adjust the frequency tolerance band to capture the detected input frequency.

9. The system of claim 1, wherein the calibration module is configured to receive a designation of the at least one input mode.

10. A digitizer calibration method, comprising:

detecting, by a computer device, an input frequency for at least one input mode of a digitizer device; and

determining whether the input frequency is within a frequency tolerance band corresponding to the at least one input mode.

11. The method of claim 10, further comprising associating the detected input frequency to the at least one input mode.

12. The method of claim 10, further comprising displaying a prompt requesting actuation of the digitizer device in the at least one input mode.

13. The method of claim 10, further comprising adjusting the frequency tolerance band based on the detected input frequency.

14. The method of claim 10, further comprising automatically initiating calibration of the computer device to the digitizer device pursuant to a predetermined schedule.

15. The method of claim 10, further comprising initiating calibration of the computer device to the digitizer device in response to a user input.

16. The method of claim 10, further comprising displaying a prompt requesting actuation of a different input mode of the digitizer device.

17. The method of claim 10, further comprising adjusting the frequency tolerance band to capture the detected input frequency.

18. The method of claim 10, further comprising receiving a designation of the at least one input mode.

19. A computer device, comprising:

means for detecting an input frequency for at least one input mode of a digitizer device; and

means for determining whether the input frequency is within a frequency tolerance band corresponding to the at least one input mode.

20. The computer device of claim 19, further comprising means for displaying a prompt requesting actuation of the digitizer device in the at least one input mode.

21. The computer device of claim 19, further comprising means for associating the detected input frequency to the at least one input mode.

22. The computer device of claim 19, further comprising means for adjusting the frequency tolerance band to capture the detected input frequency.

23. The computer device of claim 19, further comprising means for receiving a designation of the at least one input mode.

24. A computer device, comprising:

a calibration module configured to detect an input frequency of a digitizer device in at least one input mode, the calibration module configured to adjust a frequency tolerance band associated with the at least one input mode to capture the detected frequency within the frequency tolerance band.

25. The computer device of claim 24, wherein the calibration module is configured to display a prompt requesting actuation of the digitizer device in the at least one input mode.

26. The computer device of claim 24, wherein the calibration module is configured to request actuation of a different input mode of the digitizer device.

27. The computer device of claim 24, wherein the calibration module is configured to receive a designation of the at least one input mode.

28. The computer device of claim 24, wherein the calibration module is configured to adjust the frequency tolerance band associated with the at least one input mode to center the detected frequency within the frequency tolerance band.

29. The computer device of claim 24, wherein the calibration module is configured to initiate calibration of the computer device to the digitizer device pursuant to a predetermined schedule.

30. The computer device of claim 24, wherein the calibration module is adapted to initiate calibration of the computer device to the digitizer device in response to a user input.

31. A computer-readable medium having stored thereon an instruction set to be executed, the instruction set, when executed by a processor, causes the processor to:

detect an input frequency of at least one input mode of a digitizer device; and

adjust a frequency tolerance band associated with the at least one input mode to capture the detected frequency within the frequency tolerance band.

32. The computer-readable medium of claim 31, wherein the instruction set, when executed by the processor, causes the processor to receive a designation of the at least one input mode.

33. The computer-readable medium of claim 31, wherein the instruction set, when executed by the processor, causes the processor to adjust the frequency tolerance band associated with the at least one input mode to center the detected frequency within the frequency tolerance band.

34. The computer-readable medium of claim 31, wherein the instruction set, when executed by the processor, causes the processor to initiate calibration of the computer device to the digitizer device pursuant to a predetermined schedule.

35. The computer-readable medium of claim 31, wherein the instruction set, when executed by the processor, causes the processor to initiate calibration of the computer device to the digitizer device in response to a user input.