INTERACTIVE TOUCHSCREEN AND SENSOR ARRAY

• US 20160246396A1
• Filed: 02/20/2015
• Published: 08/25/2016
• Est. Priority Date: 02/20/2015
• Status: Abandoned Application

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Dickinson, Timothy Alan, Archibald, Fitzgerald John, Dennis, Ravit, Barenboim, Lior, Burns, David William, Schneider, John Keith
• Application Number:
  US14/628,025
• Publication Number:
  US 20160246396A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• 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 2203/04108 Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/043 using propagating acoustic waves
• CPC Class Codes: G06F 3/0436 in which generating transducers and detecting transducers are attached to a single acoustic waves transmission substrate
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• CPC Class Codes: G06V 10/147 Details of sensors, e.g. sensor lenses fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19
• CPC Class Codes: G06V 40/1306 non-optical, e.g. ultrasonic or capacitive sensing
• CPC Class Codes: G06V 40/1335 Combining adjacent partial images (e.g. slices) to create a composite input or reference pattern; Tracking a sweeping finger movement
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/1382 Detecting the live character of the finger, i.e. distinguishing from a fake or cadaver finger

Abstract

An object detection system for capturing one or more sensor images of an object is provided that includes a touch system including a touch-sensitive screen and a display of a device. The object detection system also includes a sensor system including a sensor array and a processing component. The sensor array is coupled to the touch-sensitive screen, and the processing component is configured to capture one or more images of an object when the object is detected by the touch-sensitive screen. At least a portion of the sensor array overlaps with at least a portion of the touch-sensitive screen.

Claims

1. A system for capturing one or more sensor images of an object, the system comprising:

a touch system including a touch-sensitive screen and a display of a device; and

a sensor system including a sensor array and a processing component, wherein the sensor array is coupled to the touch-sensitive screen and the processing component is configured to capture one or more images of an object when the object is detected by the touch-sensitive screen, and wherein at least a portion of the sensor array overlaps with at least a portion of the touch-sensitive screen.

2. The system of claim 1, wherein the sensor array is an ultrasonic sensor array that transmits and receives ultrasonic waves.

3. The system of claim 2, wherein the processing component extracts ultrasonic signals detected by the ultrasonic sensor array and captures one or more ultrasonic images of an object.

4. The system of claim 1, further including:

an object detection system including the touch system and the sensor system, wherein the object detection system determines one or more parameters based on an interaction with the object and captures the one or more sensor images based on the one or more parameters,

wherein the one or more parameters is at least one parameter selected from the group consisting of a location of the object, a size of the object, a movement of the object, and a duration of time in which the object touches the touch-sensitive screen of the device.

5. The system of claim 1, further including:

an object detection system including the touch system and the sensor system, wherein the object detection system determines one or more parameters based on an interaction with the object and captures the one or more sensor images based on the one or more parameters,

wherein the object is one or more of a user'"'"'s fingers and a parameter of the one or more parameters includes the number of fingers.

6. The system of claim 1, wherein the object is a finger, and wherein the touch-sensitive screen is configured to detect the finger on a surface of the touch-sensitive screen.

7. The system of claim 1, wherein the touch system is configured to detect an outline based on the object'"'"'s touch on the surface of the touch-sensitive screen.

8. The system of claim 7, wherein the processing component stitches one or more image templates with the one or more captured images, and determines a new image template based on the stitched one or more image templates with the one or more captured images.

9. The system of claim 7, wherein the processing component extracts one or more features from the one or more captured images, stitches one or more feature templates with the one or more extracted features, and determines a new feature template based on the stitched one or more feature templates with the one or more extracted features.

10. The system of claim 7, wherein the processing component identifies an imaging region based on the finger outline and insonifies the imaging region to capture the one or more images of the object.

11. The system of claim 1, wherein the object is a stylus.

12. The system of claim 11, wherein the sensor system reconfigures the touch-sensitive screen for sensing the stylus.

13. The system of claim 1, wherein the sensor array is positioned underneath the touch-sensitive screen.

14. The system of claim 1, wherein the sensor array is incorporated into the touch-sensitive screen.

15. The system of claim 1, wherein the touch-sensitive screen is above the display.

16. The system of claim 1, wherein the touch-sensitive screen is incorporated into the display.

17. The system of claim 1, wherein the device is at least one of a smartphone, tablet computer, wearable health monitor, personal digital assistant, or laptop.

18. The system of claim 1, wherein the object is a finger, and wherein the touch system includes capacitive electrodes that are configured to detect liveness of the finger.

19. The system of claim 18, wherein the capacitive electrodes are incorporated into the touch-sensitive screen.

20. The system of claim 18, wherein the capacitive electrodes are peripheral to the sensor array.

21. The system of claim 18, wherein the capacitive electrodes are segmented on an upper layer of the sensor array.

22. The system of claim 1, wherein the object is a fingerprint.

23. The system of claim 1, wherein the sensor array captures the one or more images of the object.

24. A method of capturing one or more sensor images of an object, the method comprising:

detecting, by a sensor array coupled to a touch-sensitive screen of a device, signals reflected from the object with respect to the touch-sensitive screen; and

capturing, based on the reflected signals, one or more images of the object, wherein at least a portion of the sensor array overlaps with at least a portion of the touch-sensitive screen.

25. The method of claim 24, further including:

determining an object outline based on detecting the object'"'"'s touch on a surface of the touch-sensitive screen;

determining a rotation of the object from the object outline;

identifying an image template based on the object outline and the rotation, the image template being a partial image of the object;

stitching one or more images of the object with the image template; and

creating a new image template based on the stitching.

26. The method of claim 24, further including:

determining an object outline based on detecting the object'"'"'s touch on a surface of the touch-sensitive screen;

determining a rotation of the object from the object outline;

extracting one or more features from the one or more captured images;

identifying a feature template based on the object outline, rotation, and extracted features, the feature template being a partial image of the object;

stitching one or more features of the object with the feature template; and

creating a new feature template based on the stitching.

27. A computer-readable medium having stored thereon computer-executable instructions for performing operations, comprising:

detecting, by a sensor array coupled to a touch-sensitive screen of a device, signals reflected from an object with respect to the touch-sensitive screen; and

capturing, based on the reflected signals, one or more images of the object, wherein at least a portion of the sensor array overlaps with at least a portion of the touch-sensitive screen.

28. The computer-readable medium of claim 27, the computer-executable instructions for performing operations further including:

determining one or more parameters based on an interaction with the object; and

capturing the one or more images of the object based on the one or more parameters.

29. A system for capturing one or more sensor images of an object, comprising:

means for detecting signals reflected from the object with respect to a touch-sensitive screen of a device; and

means for capturing one or more images of the object based on the reflected signals, wherein when the object is located above the means for capturing the one or more images, the object is located above at least a portion of the touch-sensitive screen.

30. The system of claim 29, further including:

means for determining one or more parameters based on an interaction with the object; and

means for capturing the one or more images of the object based on the one or more parameters.