CN107153813A - Fingerprint recognition system and operation method - Google Patents
Fingerprint recognition system and operation method Download PDFInfo
- Publication number
- CN107153813A CN107153813A CN201710210768.5A CN201710210768A CN107153813A CN 107153813 A CN107153813 A CN 107153813A CN 201710210768 A CN201710210768 A CN 201710210768A CN 107153813 A CN107153813 A CN 107153813A
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- Prior art keywords
- fingerprint
- fingerprint recognition
- recognition system
- light source
- identification sensor
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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)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Image Input (AREA)
Abstract
A kind of fingerprint recognition system, operation method and electronic product.Wherein, the fingerprint recognition system includes：Fingerprint Identification sensor；Light source, the light source includes breath light；Fingerprint image analytic unit.The fingerprint recognition system sets breath light in light source, so that the fingerprint recognition system while fingerprint recognition is realized, can realize that the breathing of breath light indicates function.
Description
Technical field
The present invention relates to fingerprint recognition field, more particularly to a kind of fingerprint recognition system, operation method.
Background technology
Fingerprint identification technology, is the fingerprint pattern that fingerprint is collected by fingerprint sensor, then with having in system
Fingerprint imaging information is compared, and whether carrys out correct judgment, and then realizes the technology of identification.The convenience used due to it
Property, and fingerprint fingerprint uniqueness, fingerprint identification technology has been widely used in every field, such as public security bureau, customs etc.
Consumer product areas such as field of safety check, the gate control system of building, and PC and mobile phone etc..
Fingerprint identification technology has a variety of concrete methods of realizing.Wherein, optical finger print recognition methods is generally included：Utilize light source
Send light beam, the finger print of light beam irradiation pressing on the transparent substrate；The reflection light of fingerprint passes to imaging sensor, by scheming
As sensor generation fingerprint pattern data, and fingerprint recognition is carried out to fingerprint pattern data.
In the prior art, the function Shortcomings of fingerprint recognition system, with being restricted.
The content of the invention
The problem of present invention is solved is to provide a kind of fingerprint recognition system, operation method and electronic product, to improve fingerprint
The function of identifying system, extends the operation strategies of fingerprint recognition system, and expands operation method, so that correspondingly improving has
The function of the electronic product of the fingerprint recognition system.
To solve the above problems, the present invention provides a kind of fingerprint recognition system, including：
Fingerprint Identification sensor；
Light source, the light source includes breath light；
Fingerprint image analytic unit.
Optionally, the fingerprint recognition system also includes protective substrate, and the fingerprint Identification sensor is that TFT drives fingerprint
Identification sensor, the fingerprint Identification sensor is located between the protective substrate and the light source.
Optionally, the fingerprint image analytic unit includes PMU and Date Conversion Unit, the power supply pipe
Manage unit and electrically connect the light source and the fingerprint Identification sensor, the Date Conversion Unit electrically connects the fingerprint recognition and passed
Sensor.
Optionally, the fingerprint recognition system also includes the PMU for electrically connecting the fingerprint image analytic unit
And Date Conversion Unit, the PMU electrical connection light source, the Date Conversion Unit electrical connection fingerprint
Identification sensor.
Optionally, the PMU and Date Conversion Unit are integrated in same unit.
Optionally, the light source has one or more LEDs, and at least one described LED is the breath light.
To solve the above problems, present invention also offers a kind of operation method, the fingerprint recognition system is as described above
Fingerprint recognition system, the operation method includes：
When fingerprint Identification sensor realizes fingerprint recognition, the fingerprint image analytic unit controls the light source to carry out long brighten the hair
Light or strobe light emission；
When fingerprint recognition system carries out breathing display, the fingerprint image analytic unit controls the breath light of the light source
Type of respiration is carried out to light, and the fingerprint image analytic unit closes the fingerprint Identification sensor.
Optionally, by the pulse of the pulse voltage size, pulse voltage dutycycle or pulse voltage that control the light source
Waveform, makes the breath light carry out type of respiration and lights.
Compared with prior art, technical scheme has advantages below：
In technical scheme, breath light is set in the light source of fingerprint recognition system, so that the fingerprint recognition system
System while fingerprint recognition is realized, can realize that the breathing of breath light indicates function.More importantly it is, due to breathing
Lamp, when fingerprint recognition system does not carry out fingerprint recognition, can be shown by making breath light progress type of respiration luminous to user
Which kind of state it is in, so as to first close fingerprint Identification sensor, reaches saving power supply and improves fingerprint Identification sensor
The purpose of useful life.Also, breath light can not only indicate the working condition of fingerprint Identification sensor, it can also refer to user
Show the correspondence work shape of the equipment (this equipment can be electronic product, such as mobile phone or computer) using fingerprint recognition system
State, and when user uses fingerprint Identification sensor, then reopen fingerprint Identification sensor.In addition, this fingerprint recognition system
Breath light in light source can also be opened when indicating that fingerprint Identification sensor is used, indicate fingerprint Identification sensor without using
When close, i.e., fingerprint recognition system can be entirely as breath light, so that the use function of fingerprint recognition system in itself increases
Plus, expand the operation strategies of fingerprint recognition system.
Further, two discrete devices of fingerprint Identification sensor and breath light are integrated into fingerprint recognition system, subtracted
Device count is lacked, it is possible to save light source.
Brief description of the drawings
Fig. 1 is the fingerprint recognition system structural representation that the embodiment of the present invention is provided；
Fig. 2 is fingerprint sensor construction schematic diagram in fingerprint recognition system shown in Fig. 1；
Fig. 3 is the electrical block diagram in fingerprint recognition system shown in Fig. 1.
Embodiment
As described in background, there is functional defect in existing fingerprint recognition system.Usual existing fingerprint recognition system bag
Light source and fingerprint Identification sensor are included, the light that light source is sent by finger print after reflecting, by fingerprint Identification sensor
Receive, fingerprint Identification sensor is forming fingerprint image analytic unit according to the reflection light formation fingerprint signal received
Read, obtain corresponding fingerprint pattern for fingerprint recognition.But, under many circumstances, at fingerprint recognition system long-time
In working condition, and fingerprint Identification sensor is constantly in working condition, not only wastes electricity, and make fingerprint Identification sensor
Useful life shortens.In addition, existing fingerprint recognition system, which also has user, is difficult to know whether fingerprint recognition system can be immediately
The problem of carrying out fingerprint recognition.
Therefore, the present invention provides a kind of new fingerprint recognition system, the fingerprint recognition system is sensed including fingerprint recognition
Device, light source and fingerprint image analytic unit, wherein the light source includes breath light.Because the light source includes breath light, therefore,
The fingerprint recognition system can realize that the breathing of breath light indicates function simultaneously.More importantly it is, due to breath light,
Not carrying out fingerprint recognition in fingerprint recognition system is, can be shown by making breath light progress type of respiration luminous to user at it
In holding state, so as to first close fingerprint Identification sensor, reach that saving power supply and raising fingerprint Identification sensor are used
The purpose in time limit, in user in use, reopening fingerprint Identification sensor again.
In addition, two discrete devices of fingerprint Identification sensor and breath light are integrated into fingerprint recognition system, reduce
Device count, it is possible to save light source.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
The embodiment of the present invention provides a kind of fingerprint recognition system, incorporated by reference to referring to figs. 1 to Fig. 3.
Fig. 1 is refer to, the fingerprint recognition system includes fingerprint Identification sensor 140, light source 130 (Lightsource)
With fingerprint image analytic unit 110.Wherein, the light source 130 includes breath light.In the present embodiment, the fingerprint recognition system
Also include light guide plate (lightguide) 131, the light that light source 130 is sent is dispersed by light guide plate 131.The fingerprint is known
Other system also includes protective substrate 150, and the fingerprint Identification sensor 140 is located at the protective substrate 150 and the light source 130
Between.Meanwhile, the fingerprint recognition system also includes processing unit 120, and (processing unit 120 includes PMU and data
Converting unit, refer to Fig. 3), and processing unit 120 and fingerprint Identification sensor 140, light source 130 and fingerprint image analysis
Unit 110 is electrically connected.
Fig. 2 is refer to, the fingerprint Identification sensor 140 is that TFT drives fingerprint Identification sensor, and Fig. 2 is TFT drive fingers
The structural representation of line identification sensor.
The fingerprint Identification sensor of imaging sensor formation is driven to be referred to as TFT driving fingerprint Identification sensors using TFT.And
TFT driving imaging sensors refer to the image sensing of the thin film transistor (TFT) (ThinFilmTransistor, TFT) based on field-effect
Device.TFT driving imaging sensors are different from conventional CMOS image sensor.Shadow of the conventional CMOS image sensor by wafer size
Ring, and TFT driving imaging sensors are that (thickness of glass plate can be with such as glass plate by the thin film deposition of different layers
Less than 1mm), therefore arbitrary size can be made.Also, TFT driving imaging sensors can accomplish very thin, and quality is again light,
Be conducive to being integrated into other equipment, portable product is also easily made, can be applied to payment terminal, consumer digital product and vapour
The every field such as car terminal.And TFT driving imaging sensors are used in fingerprint recognition field.
Please continue to refer to Fig. 2, TFT driving fingerprint Identification sensors (i.e. fingerprint Identification sensor 140) include bottom glass
Substrate 141, top glass substrates 142 and positioned at a series of light-sensitive elements between them.These light-sensitive elements include multiple pictures
Element (pixel) 143, pixel 143 can generally include photodiode (photodiode), and photodiode is pixel 143
Photosensitive part, photodiode can be used as switch using TFT.Pixel 143 is embarked on journey or address wire in column by parallel
(addressline) link together.(such as fingerprint pattern sensing is carried out in the present embodiment) when carrying out image sensing, to it
The address wire making alive of middle one-row pixels 143, the TFT switch being connected in that a line is opened, the electric signal in photodiode
Read via data wire (dataline).
Please continue to refer to Fig. 2, dispersed light that light source 130 is produced (light as shown in the arrow in Fig. 2 obliquely,
Do not mark) it is irradiated to the finger being placed on protective substrate 150 through the gap between pixel 143, and through protective substrate 150
On, 162 pairs of irradiation lights in peak (ridge) 161 and paddy (vally) of finger print form discrepant reflection, and reflection light is (anti-
Light is penetrated as shown in the arrow in Fig. 2 obliquely, is not marked) it is irradiated to TFT driving imaging sensor pictures through protective substrate 150
Plain 143 surfaces, optical signal is read, you can carry out fingerprint recognition.
In the present embodiment, the fingerprint image analytic unit 110 can be micro computer, such as CPU.
In the present embodiment, breath light refers to the light of breath light under the control of fingerprint image analytic unit 110, completes
By bright to secretly or by secretly to the bright process that gradually changes, perceptual image is in breathing.Breath light can be specifically in itself fluorescent lamp or
Person's LED.The use of breath light can make whole system more power saving.And the light source 130 of system includes breath light, it can also make
Whole fingerprint recognition system plays other functions, such as reminder announced user is corresponding in addition to carrying out fingerprint identification function
The function of information.
In the present embodiment, the material of protective substrate 150 can be with organic material substrate or inorganic material substrate, example
Such as it is specifically as follows fluorinated plastic optical fiber (Plasticopticalfiber) guide plate or anti-fouling glass substrate.
Fig. 3 is refer to, the circuit structure of fingerprint recognition system is shown.It can be seen in figure 3 that processing unit 120 is wrapped
Include the PMU and Date Conversion Unit for electrically connecting the fingerprint image analytic unit 110, the PMU
The light source 130 is electrically connected, the Date Conversion Unit electrically connects the fingerprint Identification sensor 140.I.e. described power management
Unit and Date Conversion Unit are integrated in same unit, and this mode can simplify the circuit structure of whole system.
It should be noted that in other embodiments of the invention, the fingerprint image analytic unit can directly include
PMU and Date Conversion Unit, and the PMU still electrically connects the light source, the data conversion
Unit still electrically connects the fingerprint Identification sensor.That is, PMU and Date Conversion Unit can be direct
It is integrated in the fingerprint image analytic unit.This mode can make the overall structure of fingerprint recognition system simpler, from
And make fingerprint recognition system volume smaller, it is more easy to be integrated in corresponding electronic product.
It should be noted that in other embodiments of the invention, the light source can have multiple lamps, the luminaire body
Can be LED or fluorescent lamp.In other embodiments, can using it is more than one or two in multiple lamps as described
Breath light.This is not limited by the present invention.
It is therefore, described to refer to because the light source 130 includes breath light in the fingerprint recognition system that the present embodiment is provided
Line identifying system can realize that the breathing of breath light indicates function simultaneously.More importantly it is, due to breath light, in fingerprint
Identifying system does not carry out fingerprint recognition, to user it can be shown in standby by making breath light progress type of respiration luminous
State, so as to first close fingerprint Identification sensor 140, reaches that saving power supply and raising fingerprint Identification sensor 140 are used
The purpose in time limit.
In the fingerprint recognition system that the present embodiment is provided, the breath light can not only indicate fingerprint Identification sensor
Working condition, can also indicate to the user that using fingerprint recognition system equipment (this equipment can be electronic product, such as mobile phone
Or computer etc.) the other working conditions of correspondence, other working conditions can include the work shape unrelated with fingerprint recognition
State.For example when the equipment is the mobile phone with this fingerprint recognition system, the breath light can also show that user mobile phone is
It is no to have missed call or unread short messages etc..
In the fingerprint recognition system that the present embodiment is provided, due to there is breath light in light source, therefore, when fingerprint recognition system
Unite and do not receive the signal of any finger print in a period of time (described a period of time can be 30 seconds, 60 seconds or 90 seconds etc.)
When, fingerprint Identification sensor is closed automatically, so as to save power supply.Meanwhile, it can now be informed with specific breathing modulating signal
Now fingerprint Identification sensor is closed user.And when user will reuse fingerprint Identification sensor, Ke Yitong
Cross and set a capacitance sensor in fingerprint recognition system to reopen fingerprint Identification sensor, it is of course also possible to refer to
One mechanical key is set in line identifying system, to reopen fingerprint Identification sensor.Also, opening fingerprint recognition sensing
After device, corresponding breathing modulating signal can be closed or changed, so as to overcome user in existing fingerprint recognition system to be difficult to know
The problem of whether fingerprint recognition system can carry out fingerprint recognition immediately so that fingerprint recognition system is with more flexible.
In the fingerprint recognition system that the present embodiment is provided, the breath light in light source 130 can also indicate fingerprint recognition
Open, can also when not in use be closed indicating fingerprint Identification sensor when sensor is used.I.e. can be by fingerprint recognition system
It is whole as breath light so that the use function of fingerprint recognition system in itself increases, expanded the fortune of fingerprint recognition system
Use scope.
In addition, two discrete devices of fingerprint Identification sensor and breath light are integrated into fingerprint recognition system, reduce
Device count, saves the quantity of light source.
Another embodiment of the present invention additionally provides a kind of operation method, and the fingerprint recognition system can be previous embodiment
The fingerprint recognition system provided.
The operation method includes：When fingerprint Identification sensor realizes fingerprint recognition, the fingerprint image analytic unit
The light source is controlled to carry out long brighten the hair light or strobe light emission；When fingerprint recognition system carries out breathing display, the fingerprint image
Lighted as analytic unit controls the breath light of the light source to carry out type of respiration, and the fingerprint image analytic unit is closed
The fingerprint Identification sensor.Specifically can be by controlling the pulse voltage size, pulse voltage dutycycle or arteries and veins of the light source
The impulse waveform of voltage is rushed, the breath light is carried out type of respiration and lights.
Incorporated by reference to Fig. 3 is referred to, when the fingerprint image analytic unit receives fingerprint recognition instruction, to the power supply
Administrative unit issue order, the PMU is that fingerprint recognition system and light source provide power supply (power), also, institute
State Date Conversion Unit and the data that fingerprint recognition is gathered are changed into the recognizable information of the fingerprint image analytic unit, pass on
Fingerprint recognition is carried out to fingerprint image analytic unit processing.
It specifically may be referred to following two utilization examples：
Example one, is directly set to breath light by the light source of fingerprint recognition system, but this breath light still can otherwise be sent out
Light.
When the fingerprint image analytic unit indicates fingerprint recognition state, the PMU is breath light
The power supply signal for supporting fingerprint recognition is provided, so that breath light carries out the luminous of continuous or stroboscopic.Meanwhile, the power supply pipe
Reason unit provides power supply for fingerprint Identification sensor, and fingerprint recognition data are read by the Date Conversion Unit, and described
The fingerprint recognition data are converted to the accessible signal output of fingerprint image analytic unit to institute by Date Conversion Unit
Fingerprint image analytic unit is stated, fingerprint identification function is completed.
When the fingerprint image analytic unit does not indicate fingerprint recognition state, that is, it is in non-fingerprint recognition state
When, the fingerprint image analytic unit points out the PMU only to be powered to breath light, and according to different states,
Different voltage pulses are provided.The state can be according to the different and different of this fingerprint recognition system.Such as computer dormancy,
Mobile phone has short message prompting, or has the voltage pulse or electric current to breath light such as incoming call, passes through pulse strength (intensity) and arteries and veins
The pulse width modulation (pulsewidthmodulation, PWM) for rushing voltage changes, and the intensity and change for modulating breath light are saved
Play, indicate to the user that different information.
Example two, light source can also have a number of other lamps simultaneously in addition to the breath light required for having fingerprint recognition, and
Other lamps can show various different colours.Due to that can have the lamp of a variety of different colours, it is therefore possible to use by difference
The lamp of color is as breath light, or using the lamp of different colours as long bright light and stroboscopic lamp, to provide more different signals
Prompting.
When the fingerprint image analytic unit indicates fingerprint recognition state, the fingerprint image analytic unit control
Only fingerprint recognition needs the LED used bright, the closing of other lamps.
When the fingerprint image analytic unit does not indicate fingerprint recognition state, that is, it is in non-fingerprint recognition state
When, the fingerprint image analytic unit indicates that the PMU provides power supply for some or all of lamp therein,
And can modulate the bright or dark change of different colours lamp by the dutycycle or electric current of control voltage pulse, realize flicker or
The brightness change of different frequency, realizes breath light function.Wherein, the PMU can produce the electricity of any dutycycle
Pulse is pressed, the voltage of random waveform can also be produced to control the bright dark state of each lamp of light source, so that each lamp realizes different frequencies
The flicker of rate or the change of luminous intensity, and single or multiple LEDs can be modulated.
In the application method that the present embodiment is provided, by controlling the bright dark state of each lamp in the fingerprint recognition system,
The purpose for saving power supply is reached, and makes the fingerprint recognition system that there are various prompting functions.
Although present disclosure is as above, the present invention is not limited to this.Any those skilled in the art, are not departing from this
In the spirit and scope of invention, it can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
The scope of restriction is defined.
Claims (8)
1. a kind of fingerprint recognition system, it is characterised in that including：Fingerprint Identification sensor；Light source, the light source includes breathing
Lamp；Fingerprint image analytic unit.
2. fingerprint recognition system as claimed in claim 1, it is characterised in that the fingerprint recognition system also includes protection group
Plate, the fingerprint Identification sensor is that TFT drives fingerprint Identification sensor, and the fingerprint Identification sensor is located at the protection group
Between plate and the light source.
3. fingerprint recognition system as claimed in claim 1 or 2, it is characterised in that the fingerprint image analytic unit includes electricity
Source control unit and Date Conversion Unit；The PMU electrically connects the light source and fingerprint Identification sensor；It is described
Date Conversion Unit electrically connects the fingerprint Identification sensor.
4. fingerprint recognition system as claimed in claim 1 or 2, it is characterised in that the fingerprint recognition system also includes being electrically connected
The PMU and Date Conversion Unit of the fingerprint image analytic unit are connect, the PMU electrical connection is described
Light source, the Date Conversion Unit electrically connects the fingerprint Identification sensor.
5. fingerprint recognition system as claimed in claim 4, it is characterised in that the PMU and Date Conversion Unit
It is integrated in same unit.
6. fingerprint recognition system as claimed in claim 1 or 2, it is characterised in that the light source has one or more LED
Lamp, at least one described LED is the breath light.
7. a kind of operation method, it is characterised in that the fingerprint recognition system is as described in claim 1 to 6 any one
Fingerprint recognition system, the operation method includes：When fingerprint Identification sensor realizes fingerprint recognition, the fingerprint image analysis
Unit controls the light source to carry out long brighten the hair light or strobe light emission；When fingerprint recognition system carries out breathing display, the finger
Print image analytic unit controls the breath light progress type of respiration of the light source to light, and the fingerprint image analytic unit
Close the fingerprint Identification sensor.
8. operation method as claimed in claim 7, it is characterised in that by the pulse voltage size, the arteries and veins that control the light source
The impulse waveform of voltage duty cycle or pulse voltage is rushed, the breath light is carried out type of respiration and lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210768.5A CN107153813A (en) | 2017-03-31 | 2017-03-31 | Fingerprint recognition system and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710210768.5A CN107153813A (en) | 2017-03-31 | 2017-03-31 | Fingerprint recognition system and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107153813A true CN107153813A (en) | 2017-09-12 |
Family
ID=59792859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710210768.5A Withdrawn CN107153813A (en) | 2017-03-31 | 2017-03-31 | Fingerprint recognition system and operation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107153813A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110177175A (en) * | 2019-05-24 | 2019-08-27 | Oppo广东移动通信有限公司 | Based reminding method and relevant apparatus |
| CN110443204A (en) * | 2018-10-11 | 2019-11-12 | 神盾股份有限公司 | Luminous signal intensity control method and electronic device |
| CN110490122A (en) * | 2018-10-11 | 2019-11-22 | 神盾股份有限公司 | The fingerprint sensing region of display element and the alignment schemes of fingerprint sensing mould group |
| CN110598660A (en) * | 2019-09-19 | 2019-12-20 | 上海图正信息科技股份有限公司 | Method for realizing surface luminous pattern of fingerprint sensor |
-
2017
- 2017-03-31 CN CN201710210768.5A patent/CN107153813A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110443204A (en) * | 2018-10-11 | 2019-11-12 | 神盾股份有限公司 | Luminous signal intensity control method and electronic device |
| CN110490122A (en) * | 2018-10-11 | 2019-11-22 | 神盾股份有限公司 | The fingerprint sensing region of display element and the alignment schemes of fingerprint sensing mould group |
| TWI701483B (en) * | 2018-10-11 | 2020-08-11 | 神盾股份有限公司 | Method for aligning fingerprint sensing area of display element with fingerprint sensing module |
| CN110177175A (en) * | 2019-05-24 | 2019-08-27 | Oppo广东移动通信有限公司 | Based reminding method and relevant apparatus |
| CN110598660A (en) * | 2019-09-19 | 2019-12-20 | 上海图正信息科技股份有限公司 | Method for realizing surface luminous pattern of fingerprint sensor |
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Application publication date: 20170912 |