Interactive touchscreen and sensor array

A sensor array and sensor technology, applied in instruments, character and pattern recognition, fingerprint/palmprint acquisition/sorting, etc., can solve the problems of unable to form fingerprint ridges and valleys, shallow fingerprints, low resolution, etc.

Inactive Publication Date: 2017-09-26
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Conventional capacitive touchscreens have difficulty capturing fingerprint images due to inherently low resolution and the inability to form a clear image of fingerprint ridges and valleys, partly due to the typical spacing between ITO electrodes, which can vary from typical fingerprint ridges to Ten times the valley spacing, and due in part to the relatively shallow valleys of most fingerprints
Capacitive-based fingerprint sensors with higher resolution can function well using thin pressure plates, but are difficult to image through cover glass or protective lenses of the typical thickness of mobile device displays

Method used

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  • Interactive touchscreen and sensor array
  • Interactive touchscreen and sensor array
  • Interactive touchscreen and sensor array

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] I. Example system architecture

[0031] A. Touch system

[0032] B. Sensor system

[0033] II. Sensor system coupled to touch system for object detection and imaging

[0034] A. Touch Data

[0035] B. Fingerprint data

[0036] C. Sensor data and device status information

[0037] D. Processing Touch Data, Fingerprint Data, Sensor Data, and / or Device State Information

[0038] III. Components of the Object Detection System

[0039] IV. Sensor Array

[0040] A. Power reduction

[0041] B. Size reduction

[0042] C. Self-calibration of sensor position

[0043] V. Object Outline and Rotation

[0044] A. Adoption of touch assist

[0045] B. Touch-assisted query

[0046] VI. Multi-finger verification

[0047] VII. Activity detection

[0048] VIII. EXAMPLE COMPUTER SYSTEM

[0049] In the following description, specific details describing certain embodiments are set forth. It will be apparent, however, to one skilled in the art that the disclosed embodiments may...

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PUM

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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.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 14 / 628,025, filed February 20, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] Embodiments disclosed herein are directed generally to detecting an object, and more particularly to capturing an image of the object using a sensor array coupled to a touch-sensitive screen. Background technique [0004] Mobile devices are ubiquitous and may include smart phones, tablet computers, personal digital assistants (PDAs), portable game consoles, palmtop computers, wearable health monitors, and other portable electronic devices. A mobile device can be "locked," preventing access to the mobile device by anyone other than the owner of the mobile device. The owner may set a password on the mobile device and verify by entering the password correctly into the mobile device, which may be an inconvenience. Instead of having ...

Claims

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Application Information

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IPC IPC(8): G06F3/043G06F3/044G06V10/147
CPCG06F3/0436G06F3/044G06F2203/04106G06F3/0446G06F3/0445G06V40/1335G06V40/1347G06V40/1306G06V40/1382G06V10/147G06F3/03545G06F3/0412G06F3/043G06F2203/04104G06F2203/04108
Inventor T·A·迪金森D·W·伯恩斯F·J·阿奇博尔德J·K·施奈德R·丹尼斯L·巴伦博伊姆
Owner QUALCOMM INC
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