INFORMATION PROCESSING DEVICE, INPUT DEVICE, INFORMATION PROCESSING METHOD, AND PROGRAM

• US 20150280708A1
• Filed: 03/23/2015
• Published: 10/01/2015
• Est. Priority Date: 03/31/2014
• Status: Abandoned Application

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Goto, Tetsuro, Kawaguchi, Hiroto, Itaya, Takashi, Kano, Toshio, Ebisui, Akira
• Application Number:
  US14/665,063
• Publication Number:
  US 20150280708A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/023 Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
• CPC Class Codes: H03K 17/98 having a plurality of control members, e.g. keyboard
• CPC Class Codes: H03K 2217/0027 Measuring means of, e.g. currents through or voltages across the switch
• CPC Class Codes: H03K 2217/94031 Calibration involving digital processing

Abstract

There is provided an information processing device including a temperature compensation unit configured to correct an operation input value indicating an operation input to each of a plurality of key regions provided on a sheet-like operation member based on ambient temperature of an input device in which the operation input to each of the key regions is detected as a capacitance variation amount of a capacitive element depending on a change in a distance between the key region and the capacitive element, the capacitive element being provided in a manner that the capacitive element corresponds to each of the key regions.

Claims

1. An information processing device comprising:

a temperature compensation unit configured to correct an operation input value indicating an operation input to each of a plurality of key regions provided on a sheet-like operation member based on ambient temperature of an input device in which the operation input to each of the key regions is detected as a capacitance variation amount of a capacitive element depending on a change in a distance between the key region and the capacitive element, the capacitive element being provided in a manner that the capacitive element corresponds to each of the key regions.

2. The information processing device according to claim 1,

wherein the temperature compensation unit includes

a temperature detection unit configured to detect the ambient temperature based on an output value of a temperature detection element provided in the input device,

a correction amount decision unit configured to decide a correction amount for the operation input value based on the detected temperature, and

an operation input value correction unit configured to correct the operation input value using the decided correction amount.

3. The information processing device according to claim 2,

wherein the temperature detection element is a capacitive element for temperature detection that is the capacitive element provided in a region different from the key regions to detect temperature, and

wherein the temperature detection unit detects the ambient temperature based on temperature dependence of a capacitance value of the capacitive element for temperature detection.

4. The information processing device according to claim 3,

wherein the capacitive element for temperature detection is provided in a region corresponding to an end portion on a far side when viewed from a user who performs an operation input to the key region in the input device.

5. The information processing device according to claim 3,

wherein the capacitive element for temperature detection is provided in a region unaffected by heat generated from an element provided together with the input device.

6. The information processing device according to claim 3,

wherein a plurality of the capacitive elements for temperature detection are provided, and

wherein the temperature detection unit detects the ambient temperature based on a statistical value of capacitance values of the plurality of capacitive elements for temperature detection.

7. The information processing device according to claim 3,

wherein a plurality of the capacitive elements for temperature detection are provided, and

wherein the temperature detection unit excludes, among capacitance values of the plurality of capacitive elements for temperature detection, a capacitance value in which a difference value from different capacitance values is greater than a predetermined threshold, and detects the ambient temperature based on the different capacitance values.

8. The information processing device according to claim 3,

wherein a space is between the capacitive element for temperature detection and the operation member is filled with another member in a region provided with the capacitive element for temperature detection.

9. The information processing device according to claim 2,

wherein the temperature detection element is a temperature detection IC on which a thermistor element is mounted.

10. The information processing device according to claim 2,

wherein the correction amount is set for each temperature compensation area defined depending on the detected ambient temperature in a manner that the correction amount is changed stepwise relative to the ambient temperature.

11. The information processing device according to claim 2,

wherein the correction amount is set in a manner that the corrected operation input value does not exceed an operation input value at temperature to be a reference.

12. The information processing device according to claim 2,

wherein the correction amount is set in a manner that the corrected operation input value does not exceed a predetermined threshold within a predetermined period from a time when the operation input to the key region is completed.

13. The information processing device according to claim 10,

wherein the correction amount is set in a manner that a difference of the correction amounts between the temperature compensation areas adjacent to each other does not exceed a predetermined threshold.

14. An input device comprising:

a sheet-like operation member that includes a plurality of key regions and is deformable depending on an operation input to the key region;

an electrode board that includes at least one capacitive element at a position corresponding to each of the key regions and is capable of detecting an amount of change in a distance between the key region and the capacitive element as a capacitance variance amount of the capacitive element, the amount of change being dependent on the operation input; and

a controller configured to correct an operation input value indicating an operation input to the key region based on ambient temperature.

15. An information processing method comprising:

correcting, by a processor, an operation input value indicating an operation input to each of a plurality of key regions provided on a sheet-like operation member based on ambient temperature of an input device in which the operation input to each of the key regions is detected as a capacitance variation amount of a capacitive element depending on a change in a distance between the key region and the capacitive element, the capacitive element being provided in a manner that the capacitive element corresponds to each of the key regions.

16. A program for causing a processor of a computer to execute the function of:

correcting an operation input value indicating an operation input to each of a plurality of key regions provided on a sheet-like operation member based on ambient temperature of an input device in which the operation input to each of the key regions is detected as a capacitance variation amount of a capacitive element depending on a change in a distance between the key region and the capacitive element, the capacitive element being provided in a manner that the capacitive element corresponds to each of the key regions.