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Fingerprint acquisition method and electronic device
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A technology for fingerprint collection and electronic equipment, which can be used in printing image collection, acquisition/organization of fingerprints/palmprints, instruments, etc., and can solve problems such as hidden dangers and attacks of electronic equipment.
Active Publication Date: 2019-07-05
LENOVO (BEIJING) CO LTD
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Description
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Problems solved by technology
Therefore, the existence of this vulnerability poses a serious security risk to electronic devices. How to avoid attacks on electronic devices through "remnant reuse" has become an urgent problem to be solved in the application of under-screen fingerprint technology.
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Embodiment 1
[0021] The embodiment of the present application provides a fingerprint collection method, which is applied to electronic equipment, such as figure 1 As shown, the fingerprint collection method may include:
[0022] Step 101: Obtain at least one historical valid area of fingerprint collection; wherein, the historical valid area is a part of the fingerprint collection area of the electronic device; the fingerprint collection area corresponds to the display output area of the display screen, and the fingerprint collection The area is less than or equal to the display output area;
[0023] Step 102: Based on the at least one historical valid area, determine a target valid area for performing a fingerprint collection operation; wherein, the target valid area is at least partially different from the historical valid area;
[0024] Step 103: Based on the target effective area, generate first indication information; wherein, the first indication information is used to indicate...
Embodiment 2
[0053] Based on the same inventive concept, the embodiment of the present application also provides an electronic device. Such as Figure 5 As shown, the electronic device 50 includes: a display screen 501, a fingerprint collection device 502 and a processor 503, wherein,
[0054] A display screen 501, the display screen includes a display output area;
[0055] A fingerprint collection device 502, the fingerprint collection device is arranged below the display screen, the fingerprint collection device includes a fingerprint collection area, the fingerprint collection area corresponds to the display output area, and the fingerprint collection area is less than or equal to the The display output area described above;
[0056] Processor 503, configured to acquire at least one historically valid area of fingerprint collection; wherein, the historically valid area is a partial area in the fingerprint collection area; based on the at least one historically valid area, determine ...
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Abstract
The embodiment of the invention discloses a fingerprint collection method. The method comprises the steps of obtaining at least one historical effective area of fingerprint collection, wherein the historical effective region is a partial region in a fingerprint acquisition region of the electronic equipment, the fingerprint acquisition area corresponds to a display output area of a display screen,and the fingerprint acquisition area is smaller than or equal to the display output area; based on the at least one historical effective region, determining a target effective region for executing afingerprint acquisition operation, wherein the target effective area is at least partially different from the historical effective area; generating the first indication information based on the targeteffective area, wherein the first indication information is used for indicating a target display area in the display output area to display guide contents, and the target effective areas are in one-to-one correspondence with the target display areas. The embodiment of the invention further discloses an electronic device.
Description
technical field [0001] The present application relates to fingerprint technology, in particular to a fingerprint collection method and electronic equipment. Background technique [0002] With the development of fingerprint collection technology, the ordinary fingerprint recognition function configured in electronic devices with full screens such as mobile phones has developed into an off-screen fingerprint recognition function. The under-screen fingerprint recognition function uses optical technology to capture the user's fingerprint image for fingerprint recognition. [0003] However, the study found that when using the under-screen fingerprint technology, the remaining fingerprint traces on the screen can be used to make the under-screen fingerprint sensor think that the owner of the electronic device is unlocking the fingerprint through the method of reflector deception. Using this attack method, as long as one The mobile phone can be unlocked in seconds, and this techni...
Claims
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Application Information
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