Multi-sensor input device

• US 20130194235A1
• Filed: 02/07/2012
• Published: 08/01/2013
• Est. Priority Date: 02/01/2012
• Status: Abandoned Application

• Current Assignee: Logitech Europe S A (Logitech International SA)
• Original Assignee: Logitech Europe S A (Logitech International SA)
• Inventors: Zanone, Jean-Daniel, Jirousek, Jaroslav, Merminod, Baptiste, Mayor, Vincent
• Application Number:
  US13/368,232
• Publication Number:
  US 20130194235A1
• Time in Patent Office: Days
• US Class Current: 345/175
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/0421 by interrupting or reflecting a light beam, e.g. optical touch-screen

Abstract

A method of calibration including powering up an input device that includes a touch sensor and placing the touch sensor in a normal mode of operation. The input device scans the touch sensor to detect a user input data and determines whether the user input is detected within a predetermined time period. If no user input is received during the predetermined time period, the method includes placing the touch sensor in a calibration mode of operation, performing a calibration process for the touch sensor, and returning the touch sensor to the normal mode of operation. Typically, the predetermined time period is greater than or equal to 30 seconds. In certain embodiments, the calibration process is performed a single time after powering up the input device. In some embodiments, the method further includes detecting a user input on one or more additional sensors within the predetermined time period.

Claims

1. A method of calibration comprising:

powering up an input device comprising a touch sensor;

placing the touch sensor in a normal mode of operation;

scanning the touch sensor to detect a user input;

determining that the user input is not detected within a predetermined time period; and

placing the touch sensor in a calibration mode of operation.

2. The method of claim 1 wherein the input device further comprises one or more additional sensors.

3. The method of claim 2 further comprising scanning the one or more additional sensors to detect the user input.

4. The method of claim 3 wherein the one or more additional sensors includes an optical sensor operable to provide at least one of X-Y movement data or lift data.

5. The method of claim 3 wherein the one or more additional sensors includes at least one of an accelerometer or a gyroscope, wherein the at least one of the accelerometer or a gyroscope is operable to provide movement data or orientation data.

6. The method of claim 1 wherein performing the calibration process is executed a single time after powering up the input device.

7. The method of claim 1 further comprising:

performing a calibration process for the touch sensor; and

returning the touch sensor to the normal mode of operation.

8. The method of claim 1 wherein the predetermined time period is between 15 to 45 seconds.

9. The method of claim 1 wherein the touch sensor is operable to provide at least one of touch data or gesture data.

10. A non-transitory computer-readable storage medium comprising a plurality of computer-readable instructions tangibly embodied on the computer-readable storage medium, which, when executed by a data processor, provides a method of calibration, the plurality of instructions comprising:

instructions that cause the data processor to power up an input device comprising a touch sensor;

instructions that cause the data processor to place the touch sensor in a normal mode of operation;

instructions that cause the data processor to scan the touch sensor to detect a user input;

instructions that cause the data processor to determine that the user input is not detected within a predetermined time period; and

instructions that cause the data processor to place the touch sensor in a calibration mode of operation.

11. The non-transitory computer-readable storage medium of claim 10 wherein the input device further comprises one or more additional sensors.

12. The non-transitory computer-readable storage medium of claim 11 wherein the method further comprises scanning the one or more additional sensors to detect a user input.

13. The non-transitory computer-readable storage medium of claim 12 wherein the one or more additional sensors includes an optical sensor operable to provide at least one of X-Y movement data or lift data.

14. The non-transitory computer-readable storage medium of claim 12 wherein the one or more additional sensors includes at least one of an accelerometer or a gyroscope, wherein the at least one of an accelerometer or a gyroscope is operable to provide movement data or orientation data.

15. The non-transitory computer-readable storage medium of claim 10 wherein the method further comprises:

instructions that cause the data processor to perform a calibration process for the touch sensor; and

instructions that cause the data processor to return the touch sensor to the normal mode of operation.

16. The non-transitory computer-readable storage medium of claim 10 wherein performing the calibration process is performed a single time after powering up the input device.

17. The non-transitory computer-readable storage medium of claim 10 wherein the predetermined time period is between 15-45 seconds.

18. A system for calibrating an input device comprising:

a processor; and

a touch sensor coupled to the processor, wherein the processor is configured to scan the touch sensor to detect a user input, wherein the processor is further configured to calibrate the touch sensor after a predetermined period of no user activity on the touch sensor.

19. The system of claim 18 further comprising one or more additional sensors, wherein the processor is further configured to scan the one or more additional sensors to detect the user input, and wherein the processor is further configured to calibrate the touch sensor after the predetermined period of no user activity on the one or more additional sensors and the touch sensor.

20. The system of claim 19 wherein the predetermined period is between 15-45 seconds.