Methods for using a multiresolution touch interface
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Assignees
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Publication Number
US-11625123-B2
Publication Date
2023-04-11
Expiration Date
Abstract
A method for touch detection and fingerprint unlocking includes detecting a finger of a user being in contact with a multiresolution touch interface having a low-resolution mode and a high-resolution mode. The method also includes in response to the detecting the finger of the user being in contact with the multiresolution touch interface, determining a touch interaction associated with the detected finger under the low-resolution mode. The method also includes in response to the multiresolution touch interface being locked, switching a finger contact area of the multiresolution touch interface into the high-resolution mode, wherein the finger contact area is determined based at least in part on the determined touch interaction associated with the detected finger. The method also includes detecting a fingerprint in the finger contact area, and unlocking the multiresolution touch interface based at least in part on the detected fingerprint.
Core Innovation
The document describes a smartwatch with an electrode touch display system that integrates a multiresolution touch interface and fingerprint unlocking. The multiresolution touch interface includes a low-resolution mode and a high-resolution mode, and the interface detects a finger of a user in contact with the multiresolution touch interface. In response to the detecting, a touch interaction associated with the detected finger is determined under the low-resolution mode.
When the multiresolution touch interface is locked, the document switches a finger contact area of the multiresolution touch interface into the high-resolution mode. The finger contact area is determined based at least in part on the determined touch interaction associated with the detected finger, and a fingerprint is then detected in the finger contact area. The multiresolution touch interface is unlocked based at least in part on the detected fingerprint.
The multiresolution touch interface includes infrared sensor arrays arranged into sensing columns. The infrared sensor arrays include a central cluster of infrared sensor units and a peripheral cluster of infrared sensor units, and a switching column connected to each of the central cluster and the peripheral cluster of each infrared sensor array is engaged under the high-resolution mode, while the switching column of the peripheral cluster of the infrared sensor array is disengaged under the low-resolution mode.
Claims Coverage
The partial content provides two independent methods that cover touch detection, touch-interaction determination in a low-resolution mode, conditional switching into a high-resolution mode for localized fingerprint detection, and unlocking based on the detected fingerprint. Both independent claims additionally define infrared sensor-array hardware with central and peripheral clusters and switching columns engaged and disengaged across modes.
Multiresolution touch interaction-driven fingerprint unlocking
Detecting a finger of a user in contact with a multiresolution touch interface having a low-resolution mode and a high-resolution mode; determining a touch interaction associated with the detected finger under the low-resolution mode; determining whether the multiresolution touch interface is locked; in response to the multiresolution touch interface being locked, switching a finger contact area into the high-resolution mode, wherein the finger contact area is determined based at least in part on the determined touch interaction; detecting a fingerprint in the finger contact area; and unlocking the multiresolution touch interface based at least in part on the detected fingerprint.
Infrared sensor-array multiresolution architecture with engaged/disengaged switching columns
The multiresolution touch interface includes a plurality of infrared sensor arrays each including a central cluster of infrared sensor units and a peripheral cluster of infrared sensor units; and a switching column connected to each of the central cluster and the peripheral cluster of each infrared sensor array, wherein both the switching columns of the central cluster and the peripheral cluster of the infrared sensor array are engaged under the high-resolution mode, and wherein the switching column of the peripheral cluster of the infrared sensor array is disengaged under the low-resolution mode.
Partial switching of sensing columns for high-resolution fingerprint capture
The multiresolution touch interface includes a plurality of sensing columns, and switching the finger contact area into the high-resolution mode includes switching a portion of the plurality of sensing columns into the high-resolution mode; wherein the multiresolution touch interface includes a plurality of infrared sensor arrays arranged into the sensing columns with central and peripheral clusters and switching columns that are engaged under the high-resolution mode and disengaged under the low-resolution mode for the peripheral cluster switching column.
Across the independent claims, the inventive coverage centers on determining a touch interaction in a low-resolution mode, conditionally switching a finger contact area into a high-resolution mode based on that interaction when the interface is locked, detecting a fingerprint in the switched contact area, and unlocking based on the detected fingerprint, supported by an infrared sensor-array architecture with central and peripheral clusters and switching columns that are engaged and disengaged by resolution mode.
Stated Advantages
Documented Applications
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