CN108090398A - Identification of fingerprint module - Google Patents
Identification of fingerprint module Download PDFInfo
- Publication number
- CN108090398A CN108090398A CN201611033961.8A CN201611033961A CN108090398A CN 108090398 A CN108090398 A CN 108090398A CN 201611033961 A CN201611033961 A CN 201611033961A CN 108090398 A CN108090398 A CN 108090398A
- Authority
- CN
- China
- Prior art keywords
- fingerprint
- identification
- circuit board
- sensor chip
- microprocessor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The present invention is to provide a kind of identification of fingerprint module, and to recognize a fingerprint of a finger, which includes a sensor chip, a microprocessor and a piezoelectric element.The piezoelectric element has a fingerprint sensing area, so that the finger is pressed in the fingerprint sensing area.When the piezoelectric element is pressed by the finger and generates a driving voltage, which provides an electric power in the sensor chip and the microprocessor, to carry out an identification of fingerprint program.
Description
Technical field
The present invention relates to a kind of identification of fingerprint modules, particularly a kind of identification of fingerprint module equipped with piezoelectric element.
Background technology
With the fast development of science and technology, substantially everybody is equipped with an action electronic device or laptop, due to
Daily using the time of action electronic device or laptop also easily more than a few hours, action electronic device or notebook electricity
Therefore brain storage, to reach good secrecy, also develops identification of fingerprint module to be used in electronic product there are many significant data
Identity identification on.
Using action electronic device to enumerate for, action electronic device on the market is generally all interior at present has dormancy mould
Formula, so-called sleep mode are not used by action electronic device up to after a predetermined time (such as three minutes), portable electronic
The screen of device is automatically closed, and action electronic device is to stop carrying out sensing any letter for coming from user's input at this time
Number.That is, current use situation is, if during user's identification of fingerprint to be carried out it may first have to first press a button with
Action electronic device from sleep mode is waken up, action electronic device is made to be powered at its identification of fingerprint module, then fingerprint is distinguished
The state for being able to carry out fingerprint sensing can be come back to by knowing module.
Therefore, the identification of fingerprint module of action electronic device can not carry out fingerprint sensing when dormancy.It is electric as action is made
This action that sub-device is waken up from sleep mode, it is real to belong to extra and superfluous for the user of fingerprint sensing to be carried out
It is superfluous, it because this can allow user to need more one step of execution (such as one button of pressing in advance), just can obtain identification of fingerprint module
It must power and to start to perform sensing.Therefore, existing identification of fingerprint module stills need to improve.
The content of the invention
It is a primary object of the present invention to provide a kind of identification of fingerprint module, which in itself can be in response to using
The push action of person and generate electric power, using the electric power source as the identification of fingerprint module, and needn't wake up in advance and be configured with this
One electronic device of identification of fingerprint module.
The one of the present invention preferably implements concept, is to provide a kind of identification of fingerprint module, to recognize a finger of a finger
Line, the identification of fingerprint module include：
One circuit board；
One sensor chip is arranged on the circuit board, and is electrically connected at the circuit board, and the sensor chip element is feeling
It surveys the fingerprint and generates a fingerprint sensing characteristic information；
One microprocessor is arranged on the circuit board, and is electrically connected at the circuit board, which receives to come from and be somebody's turn to do
The fingerprint sensing characteristic information of sensor chip is to be compared；And
One piezoelectric element is stacked and placed on the sensor chip and the top of the microprocessor, and is electrically connected at the circuit board,
The piezoelectric element has a fingerprint sensing area, which presses thereon for the finger；
Wherein, when the fingerprint sensing area is pressed by the finger, which generates a driving voltage, to drive the sense
It surveys chip and the microprocessor is operated.
In a preferred embodiment, which further includes a memory, which is arranged at the circuit board
On, when the fingerprint sensing area is pressed by the finger, which generates the driving voltage to drive the sensor chip, this is micro-
Processor and the memory make the sensor chip sense the fingerprint and transmit the fingerprint sensing characteristic information to the microprocessor
Device, and the finger print data with being stored in memory is compared.
In a preferred embodiment, the sensor chip, the microprocessor and the memory are jointly by with a plane net
Lattice array package mode or ball grid array mode encapsulate packaged form.
In a preferred embodiment, which has two electrical pins, which is listed in piezoelectricity member
One lateral margin of part, and it is connected to the circuit board.
In a preferred embodiment, which further includes a structural strengthening piece, which is located at should
The lower section of circuit board, and bonded between the circuit board and the structural strengthening piece using a viscose glue.
The beneficial effects of the present invention are identification of fingerprint module of the present invention is by being configured with piezoelectric element so that fingerprint is distinguished
Knowledge module becomes can self-powered identification of fingerprint module.Identification of fingerprint module can not have to obtain power supply from electronic device, therefore in electricity
During sub-device dormancy, identification of fingerprint module still is able to independently execute identification.If this is set, it can treat that identification of fingerprint module judges to confirm
After fingerprint is correct, electronic device is waken up or starts shooting again, is disappeared whereby with simplifying operating procedure and reducing unnecessary electric power
Consumption.
Description of the drawings
Fig. 1 is for a stereoscopic schematic diagram of identification of fingerprint module of the present invention.
Fig. 2 is for an exploded perspective view of identification of fingerprint module of the present invention.
Fig. 3 is for a diagrammatic cross-section of identification of fingerprint module of the present invention.
Wherein, the reference numerals are as follows：
1 identification of fingerprint module
11 circuit boards
12 sensor chips
13 microprocessors
14 memories
15 piezoelectric elements
150 lateral margins
151 fingerprint sensing areas
The electrical pins of 15a
16 resin beds
17 annular sealings
18 viscose glues
19 structural strengthening pieces
6 fingers
S fingerprint sensing characteristic informations
Specific embodiment
As shown in Figure 1 and Figure 2, Fig. 1 is for a stereoscopic schematic diagram of identification of fingerprint module of the present invention, and Fig. 2 is for this hair
One exploded perspective view of bright identification of fingerprint module, Fig. 3 are for a diagrammatic cross-section of identification of fingerprint module of the present invention.The present invention refers to
Line identification module 1 is to recognize a fingerprint of a finger 6, to judge whether the fingerprint meets access right.Identification of fingerprint mould
Block 1 includes a circuit board 11, a sensor chip 12, a microprocessor 13, a memory 14 and a piezoelectric element 15.Sense core
Piece 12, microprocessor 13, memory 14 are electrically connected at circuit board 11, to make the transmission of signal, it is preferred that sensor chip 12,
Microprocessor 13, memory 14 are all arranged on circuit board 11.
Wherein, sensor chip 12, microprocessor 13 and memory 14 are jointly by with a plane grid array (Land
Grid Array；LGA) packaged type or ball grid array mode (Ball Grid Array；BGA) packaged type or
It is that other chip package modes are packaged in a resin bed 16 and form.It is preferred that in the edge that resin bed 16 connects with circuit board 11
Part has an annular sealing 17, to bind resin bed 16 and circuit board 11, and extraneous liquid or aqueous vapor is avoided to penetrate into.
Furthermore piezoelectric element 15 is stacked and placed on the sensor chip 12 and the top of the microprocessor 13, that is, it is located at and entirely refers to
Line identification module 1 is revealed in outer outermost one layer, is pressed in order to the finger 6 of user.Therefore, piezoelectric element 15 is designed
Have a fingerprint sensing area 151, positioned at a upper surface of piezoelectric element 15, for finger 6 fingerprint in fingerprint sensing area 151
Mode is pressed.
Furthermore, there are piezoelectric element 15 two electrical pin 15a, two electrical pin 15a to be listed in piezoelectric element 15
A lateral margin 150, and be electrically connected to the circuit board 11.Since piezoelectric element 15 is a kind of electricity by mechanical energy and electric energy exchange
Made by dielectric material, therefore when user is subject to press, suffered pressure can generate a drive between 15 both ends of the surface of piezoelectric element
Dynamic voltage, and this driving voltage can be used as an electric power source, and further sensor chip 12, Wei Chu are powered at via circuit board 11
Device 13 and memory 14 are managed, sensor chip 12, microprocessor 13 and memory 14 is allow to have electric power to be operated.
For example, identification of fingerprint module 1 is built in an action electronic device, wherein, identification of fingerprint module 1 has
The effect of input password is identical to, this action electronic device can be unlocked.In the present invention, by the setting of piezoelectric element 15,
User is while identification of fingerprint to be carried out, and because force presses on piezoelectric element 15, and then generates a voltage, using as fingerprint
The electric power source of module 1 is recognized, and power supply needn't be obtained from this action electronic device.The identification of fingerprint module of the present invention can be in the row
Sensing is performed during dynamic electronic device dormancy, also therefore, this action electronic device can treat that identification of fingerprint module 1 judges confirming fingerprint just
It is waken up or starts shooting again after really, so as to simplifying operating procedure and reducing power consumption.
Furthermore, it is understood that while finger 6 presses piezoelectric element 15, the sensor chip 12 positioned at 15 lower section of piezoelectric element
It can be sensed for being intended for the fingerprint in fingerprint sensing area 151.That is, spy of the sensor chip 12 according to its fingerprint sensed
Sign generates a fingerprint sensing characteristic information S.It is then various as the mode that generates fingerprint sensing characteristic information and generally, it is also non-
The technology of the present invention feature, therefore be no longer described in detail in this.
The person of connecing, fingerprint sensing characteristic information are sent to microprocessor 13, to be compared.It is micro- in a preferred embodiment
Processor 13 be the fingerprint sensing characteristic information for being received it and be stored in a finger print data (not shown) of memory 14 into
Row compares, wherein, which is the correct fingerprint using owner to store in advance.
On the other hand, identification of fingerprint module 1 of the invention further includes a structural strengthening piece 19, and structural strengthening piece 19 is located at electricity
The lower section of road plate 11 is binded between circuit board 11 and structural strengthening piece 19 using a viscose glue 18.It sets, is distinguished with improving fingerprint whereby
Know the overall construction intensity of module 1, when identification of fingerprint module 1 is depressed by a user, just do not allow to tend to have part deformation or
The facts to come off occurs.
In conclusion identification of fingerprint module of the present invention is by being configured with piezoelectric element so that identification of fingerprint module 1 becomes can
Self-powered identification of fingerprint module 1.Identification of fingerprint module can not have to obtain power supply from electronic device, therefore in electronic device dormancy
When, identification of fingerprint module still is able to independently execute identification.If this is set, it can treat that identification of fingerprint module 1 judges to confirm that fingerprint is correct
Afterwards, electronic device is waken up or starts shooting again, whereby to simplify operating procedure and reduce unnecessary power consumption.
Above-described embodiment is only that the principle of the present invention and its effect is illustrated, and illustrates the technical characteristic of the present invention,
Protection category and is not intended to limit the present invention.Any those skilled in the art can without prejudice to the present invention technical principle and
In the case of spirit, it unlabored can change or the arrangement of isotropism belongs to the scope that the present invention is advocated.Therefore, this hair
Listed by claims that bright rights protection scope should be as be described hereinafter.
Claims (5)
1. a kind of identification of fingerprint module, to recognize a fingerprint of a finger, which includes：
One circuit board；
One sensor chip is arranged on the circuit board, and is electrically connected at the circuit board, and the sensor chip element is sensing this
Fingerprint and generate a fingerprint sensing characteristic information；
One microprocessor is arranged on the circuit board, and is electrically connected at the circuit board, which receives from the sensing
The fingerprint sensing characteristic information of chip is to be compared；And
One piezoelectric element is stacked and placed on the sensor chip and the top of the microprocessor, and is electrically connected at the circuit board, the pressure
Electric device has a fingerprint sensing area, which presses thereon for the finger；
Wherein, when the fingerprint sensing area is pressed by the finger, which generates a driving voltage, to drive the sensing core
Piece and the microprocessor are operated.
2. identification of fingerprint module as described in claim 1, further includes a memory, which is arranged on the circuit board,
When the fingerprint sensing area is pressed by the finger, which generates the driving voltage to drive the sensor chip, micro- place
Device and the memory are managed, the sensor chip is made to sense the fingerprint and transmits the fingerprint sensing characteristic information to the microprocessor,
And the finger print data with being stored in memory is compared.
3. identification of fingerprint module as claimed in claim 2, the wherein sensor chip, the microprocessor and the memory, are
Jointly by a manner of a plane grid array package or ball grid array mode encapsulates packaged form.
4. identification of fingerprint module as described in claim 1, the wherein piezoelectric element have two electrical pins, the two electrical pin
A lateral margin of the piezoelectric element is listed in, and is connected to the circuit board.
5. identification of fingerprint module as described in claim 1 further includes a structural strengthening piece, which is located at the circuit
The lower section of plate, and bonded between the circuit board and the structural strengthening piece using a viscose glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033961.8A CN108090398A (en) | 2016-11-22 | 2016-11-22 | Identification of fingerprint module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033961.8A CN108090398A (en) | 2016-11-22 | 2016-11-22 | Identification of fingerprint module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108090398A true CN108090398A (en) | 2018-05-29 |
Family
ID=62169920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033961.8A Pending CN108090398A (en) | 2016-11-22 | 2016-11-22 | Identification of fingerprint module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108090398A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008319A (en) * | 2014-05-14 | 2014-08-27 | 深圳市汇顶科技股份有限公司 | Terminal based on fingerprint recognition and method and system for logging into same in stand-by state |
| CN104951159A (en) * | 2015-06-12 | 2015-09-30 | 小米科技有限责任公司 | Touch key and fingerprint identification method |
| CN105205483A (en) * | 2014-06-13 | 2015-12-30 | 奇景光电股份有限公司 | Fingerprint sensing device |
| CN105388992A (en) * | 2015-11-03 | 2016-03-09 | 广东欧珀移动通信有限公司 | Fingerprint recognition method and apparatus and terminal |
| CN105844130A (en) * | 2016-03-17 | 2016-08-10 | 上海与德通讯技术有限公司 | Fingerprint unlocking method under standby state |
| CN105956573A (en) * | 2016-05-17 | 2016-09-21 | 广东欧珀移动通信有限公司 | Fingerprint identification module, fingerprint identification module control method and terminal |
-
2016
- 2016-11-22 CN CN201611033961.8A patent/CN108090398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008319A (en) * | 2014-05-14 | 2014-08-27 | 深圳市汇顶科技股份有限公司 | Terminal based on fingerprint recognition and method and system for logging into same in stand-by state |
| CN105205483A (en) * | 2014-06-13 | 2015-12-30 | 奇景光电股份有限公司 | Fingerprint sensing device |
| CN104951159A (en) * | 2015-06-12 | 2015-09-30 | 小米科技有限责任公司 | Touch key and fingerprint identification method |
| CN105388992A (en) * | 2015-11-03 | 2016-03-09 | 广东欧珀移动通信有限公司 | Fingerprint recognition method and apparatus and terminal |
| CN105844130A (en) * | 2016-03-17 | 2016-08-10 | 上海与德通讯技术有限公司 | Fingerprint unlocking method under standby state |
| CN105956573A (en) * | 2016-05-17 | 2016-09-21 | 广东欧珀移动通信有限公司 | Fingerprint identification module, fingerprint identification module control method and terminal |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20180529 |