FINGERPRINT IDENTIFICATION APPARATUS AND BIOMETRIC SIGNALS SENSING METHOD USING THE SAME

• US 20170083779A1
• Filed: 11/30/2016
• Published: 03/23/2017
• Est. Priority Date: 08/26/2014
• Status: Active Grant

• Current Assignee: Gingy Technology Inc.
• Original Assignee: Gingy Technology Inc.
• Inventors: Hung, Chun-Lang, CHEN, TSUNG-SHAN
• Granted Patent: US 10,140,536 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/1172 using fingerprinting
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/6826 Finger
• CPC Class Codes: G06V 10/143 Sensing or illuminating at different wavelengths
• CPC Class Codes: G06V 40/13 Sensors therefor
• CPC Class Codes: G06V 40/1341 Sensing with light passing through the finger
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: G06V 40/14 Vascular patterns
• CPC Class Codes: G06V 40/70 Multimodal biometrics, e.g. combining information from different biometric modalities
• CPC Class Codes: H04N 5/30 Transforming light or analogous information into electric information scanning details H04N3/00; cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00; circuitry of solid-state image sensors [SSIS] or control thereof H04N25/00

Abstract

This invention disclosures a fingerprint identification apparatus and biometric signals sensing method using the same. The fingerprint identification apparatus comprises: a photoelectric sensor, a light module and an identification unit in which the photoelectric sensor with a fingerprint sensing face is to transform light intensity signals into electronic signals; the light module is to produce test light; the identification unit is electrically connected with the photoelectric sensor, wherein, there are different sensing modes with corresponding actions; in the first sensing mode, the identification unit senses a fingerprint image by the photoelectric sensor; in the second mode, the identification unit senses a spectrum by the photoelectric sensor to determine the blood glucose information. Therefore, this fingerprint identification apparatus can detect the fingerprint and blood glucose at the same time.

Claims

1. A fingerprint identification apparatus adapted to sense fingerprint images and blood glucose information, comprising:

at least one photoelectric sensor having a fingerprint sensing face transforming light intensity signals into electronic signals,

at least one light module generating a test light to the finger, and

an identification unit electrically connected with the photoelectric sensor;

wherein, there are different sensing modes with corresponding actions;

in a first sensing mode, the identification unit senses a fingerprint image by the photoelectric sensor, and in a second mode, the identification unit senses a spectrum by the photoelectric sensor to determine the blood glucose information.

2. The fingerprint identification apparatus according to claim 1, wherein the light module is disposed around the photoelectric sensor.

3. The fingerprint identification apparatus according to claim 1, wherein the light module is disposed on the photoelectric sensor and an accommodating space for accommodating the finger is disposed between the photoelectric sensor and the light module.

4. The fingerprint identification apparatus according to claim 1, wherein the light module comprises a plurality of light sources having different wavelength ranges for generating the test light, and the test light has a wavelength range ranging from 700 nm-3000 nm

5. The fingerprint identification apparatus according to claim 1, wherein the light module comprises the plurality of light sources and a plurality of filters, and the plurality of filters are respectively disposed on the plurality of light sources for producing a spectrum having different wavebands.

6. The fingerprint identification apparatus according to claim 1, wherein in the second sensing mode, the light module sequentially generates the test light having different wavelength ranges, and the test light has a wavelength range ranging from 700 nm-3000 nm

7. The fingerprint identification apparatus according to claim 1, wherein the photoelectric sensor has a sensing array disposed below the fingerprint sensing face, a part of the sensing array is set as a spectrum sensing region, and the identification unit senses the spectrum information through the spectrum sensing region.

8. The fingerprint identification apparatus according to claim 1, wherein the photoelectric sensor has the sensing array and a spectrum sensing element, the sensing array is used to sense the fingerprint image, and the spectrum sensing element is used to sense the spectrum information.

9. The fingerprint identification apparatus according to claim 1, wherein the fingerprint identification apparatus verifies user data according to the fingerprint image, and determines a relationship between the blood glucose information and user according to the user data.

10. The fingerprint identification apparatus according to claim 1, wherein the fingerprint identification apparatus verifies whether the finger is real or not according to the spectrum information.

11. The fingerprint identification apparatus according to claim 1, wherein the photoelectric sensor comprises the sensing array formed of a plurality of photosensitive units, and each of the plurality of photosensitive units comprises a first type doped semiconductor layer and a second type doped semiconductor layer.

12. The fingerprint identification apparatus according to claim 1, wherein the identification unit comprises:

an analog/digital converter electrically connected to the photoelectric sensor for receiving the electronic signals outputted by the photoelectric sensor and converting the electronic signals into digital signals, and

a processing unit electrically connected to the analog/digital converter and receiving the digital signals to calculate the blood glucose information.

13. The fingerprint identification apparatus according to claim 1, further comprising a light controller electrically connected to the light module for controlling spectrum of the test light.

14. A biometric signals sensing method adapted to fingerprint identification apparatus, comprising:

sensing a fingerprint image by a photoelectric sensor;

verifying user data according to the fingerprint image;

sensing spectrum information by the photoelectric sensor;

calculating blood glucose information according to the spectrum information, and

obtaining a relationship between the blood glucose information and the user data.

15. The biometric signals sensing method according to claim 14, further comprising:

verifying whether a sensed finger is a real finger according to the spectrum information.

16. The biometric signals sensing method according to claim 14, wherein in the step of sensing the spectrum information by the photoelectric sensor further comprises:

providing the test light having different spectra to the sensed finger, wherein the test light is generated on or below the finger.