Universal touch input driver

• US 8,760,416 B2
• Filed: 09/29/2010
• Issued: 06/24/2014
• Est. Priority Date: 10/02/2009
• Status: Expired due to Fees

• Current Assignee: Dedo Interactive, Inc.
• Original Assignee: Dedo Interactive, Inc.
• Inventors: Miller, Mark Frederick, Meng, Xiangying, Bugbee, Matthew Ryan
• Primary Examiner(s): Lee, Gene W
• Application Number:
  US12/893,375
• Publication Number:
  US 20110080360A1
• Time in Patent Office: 1,364 Days
• Field of Search: 345156-184, 463 36- 38, 715700-866
• US Class Current: 345/173
• CPC Class Codes: G06F 2203/04808 Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

A universal touch input driver includes a device driver interface through which touch data is obtained from a device driver. Also included is a computation module that processes the touch data and converts it into a standardized format. Also included is an application interface through which the standardized touch data is transferred to a touch input application.

Claims

1. A universal touch input driver comprising:

a device driver interface through which touch data is obtained from a device driver, wherein the device driver provides a set of parameters in each set of touch data;

a computation module that processes a set of touch data and converts it into standardized touch data in a standardized format by identifying a parameter in the standardized format that is missing in the set of parameters provided in each set of the touch data, generating a value for the missing parameter and including the value of the missing parameter together with data from the set of touch data from the device driver in the standardized touch data; and

an application interface through which the standardized touch data is transferred to a touch input application.

2. The universal touch input driver of claim 1, wherein the standardized touch data is formatted so as to include, for a record of a touch instance, an x-coordinate, a y-coordinate, a change in x, a change in y, a width of a touch, a height of a touch, and an acceleration.

3. The universal touch input driver of claim 1, wherein the standardized touch data is formatted in accordance with user datagram protocol.

4. The universal touch input driver of claim 1, wherein said transfer of standardized touch data is a transmission to a network port.

5. The universal touch input driver of claim 1, wherein the standardized touch data is formatted in extensible markup language.

6. The universal touch input driver of claim 1, wherein said transfer of standardized touch data is a transmission to a Transmission Control Protocol or UDP port.

7. The universal touch input driver of claim 1, wherein the standardized touch data is formatted so as to be consistent with both user datagram protocol and extensible markup language.

8. The universal touch input driver of claim 2, wherein the set of parameters in each set of touch data from the device driver is missing a change in x and a change in y parameter and includes a current x-coordinate and a current y-coordinate, the universal touch input driver further comprising:

a storage module that stores an x-coordinate and a y-coordinate in the touch data from the device driver, wherein the computation module computes a change in x and a change in y based in part on the stored x-coordinate, the stored y coordinate, the current x-coordinate and the current y-coordinate.

9. The universal touch input driver of claim 8, wherein the universal touch input driver incorporates the change in x and the change in y into the standardized touch data.

10. A method of providing standardized data to a touch input application, the method comprising:

obtaining first touch data comprising an x-coordinate and a y-coordinate of a touch from a device driver that only provides a limited number of parameters in the touch data for each touch;

storing the x-coordinate and the y-coordinate of the touch;

obtaining second touch data comprising a second x-coordinate and a second y-coordinate of a second touch from the device driver;

determining that at least one parameter of a standardized format is not in the limited number of parameters in the touch data for each touch provided by the device driver;

using the stored x-coordinate and stored y-coordinate and the second touch data to form touch data having the standardized format by determining a value for a parameter that is not in the limited number of parameters in touch data for each touch provided by the device driver; and

transferring the touch data having the standardized format to the touch input application.

11. The method of claim 10, wherein forming the touch data having the standardized format comprises setting a value for the parameter that is not in the limited number of parameters to a default value in the touch data having the standardized format.

12. The method of claim 11, wherein the parameter that is not present in the limited number of parameters comprises a width of a touch.

13. The method of claim 10, wherein converting the touch data to touch data having a standardized format comprises generating touch data in multiple formats.