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Fingerprint sensing device and operating method thereof

A sensing device and fingerprint technology, applied in the field of sensing technology, can solve the problems of poor practicability of electronic devices, increased device cost and volume, etc.

Pending Publication Date: 2022-03-25
EGIS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if an electronic device with a fingerprint sensing function is to have a physiological feature sensing function at the same time, an additional light source and an image sensor need to be installed on the electronic device to realize this, which will increase the cost and volume of the device. and make the practicality of the electronic device poor

Method used

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  • Fingerprint sensing device and operating method thereof
  • Fingerprint sensing device and operating method thereof
  • Fingerprint sensing device and operating method thereof

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Embodiment Construction

[0050] Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or like parts.

[0051] figure 1 is a schematic diagram of a fingerprint sensing device according to an embodiment of the present invention. refer to figure 1 , the fingerprint sensing device 100 includes a processing circuit 110 and a sensing pixel array 120 . The processing circuit 110 includes a fingerprint sensing module 111 and a physiological feature sensing module 112 . The processing circuit 110 is coupled to the sensing pixel array 120 . In this embodiment, the fingerprint sensing device 100 can be an optical fingerprint sensor, and can be a single-chip structure. The processing circuit 110 and the sensing pixel array 120 can be integrated into the same module, and the fingerprint sensing device ...

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Abstract

The invention provides a fingerprint sensing device and an operation method thereof. The fingerprint sensing device comprises a sensing pixel array and a processing circuit. The sensing pixel array senses a finger in a fingerprint sensing period to obtain a fingerprint sensing signal. At least one pixel region of the sensing pixel array also continuously senses a finger during the fingerprint sensing period to obtain a physiological feature signal. The processing circuit is coupled to the sensing pixel array. The processing circuit generates a fingerprint image according to the fingerprint sensing signal and generates physiological feature information according to the physiological feature signal.

Description

technical field [0001] The present invention relates to a sensing technology, and in particular to a fingerprint sensing device and its operating method. Background technique [0002] The general way of sensing the physiological feature information of the finger is to irradiate the finger with a green light or infrared light source, and then take pictures of the continuously reflected light intensity changes of the finger through a light sensor. Physiological feature information can be obtained after image analysis of continuous reflected light intensity changes of fingers. However, if an electronic device with a fingerprint sensing function is to have a physiological feature sensing function at the same time, an additional light source and an image sensor need to be installed on the electronic device to realize this, which will increase the cost and volume of the device. As a result, the practicability of the electronic device is poor. Contents of the invention [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/12
CPCG06V40/70G06V40/15G06V40/1365G06V40/1382G06V40/14G06V40/1318
Inventor 周正三傅同龙
Owner EGIS TECH