Fingerprint identification device and fingerprint identification method thereof

A fingerprint identification and finger technology, applied in the field of fingerprint identification, can solve the problems of increasing the manufacturing cost of the fingerprint identification device, reducing the visibility of the display surface, etc., and achieving the effect of reducing the manufacturing cost

Pending Publication Date: 2021-10-22
IMAGE MATCH DESIGN
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the known capacitive fingerprint recognition device needs to be equipped with an additional frame (such as an iron frame) to contact the user's finger to determine whether a touch event occurs, if the fingerprint recognition device is to be attached to the display surface of an electronic product , which will reduce the visibility of the display surface, thereby limiting the application of the fingerprint identification device to a specific position of electronic products, and the additional matching of the outer frame also increases the manufacturing cost of the fingerprint identification device

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fingerprint identification device and fingerprint identification method thereof
  • Fingerprint identification device and fingerprint identification method thereof
  • Fingerprint identification device and fingerprint identification method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Please refer to Figure 1 to Figure 3 , a fingerprint identification device according to an embodiment of the present invention, comprising:

[0027] A substrate 1; a sensor 2, located on the substrate 1, and the sensor 2 is surrounded by a plurality of sensing finger touch pads 21; an oscillator 3, which is electrically connected to the plurality of nodes NA Sensing the finger touch pad 21, and outputting at least one oscillating frequency signal 31; a timer 4, outputting a clock signal 41 to the oscillator 3; and a counting and digital comparator 5, receiving the oscillating frequency signal 31, and The oscillating frequency signal 31 is counted and compared to determine whether a finger 6 touches the sensor 2 .

[0028] The sensor 2 of the fingerprint recognition device is further covered with a dielectric layer 71 and another dielectric layer 72, the dielectric layer 71 is shown as a dielectric material for packaging the sensing finger touch pad 21, and the dielect...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a fingerprint identification device, which comprises a substrate; a sensor located on the substrate, and a plurality of sensing finger touch pads on the periphery of the sensor; an oscillator electrically connected with the plurality of sensing finger touch pads and outputting at least one oscillation frequency signal; a timer used for outputting a clock pulse signal to the oscillator; and a counting and digital comparator used for counting and comparing the oscillation frequency signals. A fingerprint identification method comprises: the oscillator receives the clock pulse signal and outputs the oscillation frequency signal; a finger touches the plurality of sensing finger touch pads; and the oscillation frequency signals and the oscillation frequency signals after touching are counted and compared. The fingerprint identification device is applied to a display surface of an electronic product and is used for sensing whether a finger touches the fingerprint identification device or not.

Description

technical field [0001] The present invention relates to the field of fingerprint identification, in particular to a fingerprint identification device and a fingerprint identification method thereof. Background technique [0002] Biometric technologies, such as fingerprint recognition, voiceprint recognition and retinal recognition, have gradually matured and are widely used in personal identification and confirmation. Since fingerprint feature data requires less storage space than other types of biometric feature data, fingerprint identification has become the mainstream of biometric identification technology. Therefore, many products currently on the market, such as notebook computers, tablet computers, mobile phones, etc., have integrated fingerprint recognition functions to enhance the security of use. [0003] Since the known capacitive fingerprint recognition device needs to be equipped with an additional frame (such as an iron frame) to contact the user's finger to de...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06F21/32G06V40/1306G06F1/1684G06F3/0443G06F1/08G06F3/03547G06F3/0418
Inventor 罗炎国颜业烜
Owner IMAGE MATCH DESIGN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap