CN1766904A - Fingerprint recognition sensor and fingerprint recognition device of mobile communication mterminal - Google Patents
Fingerprint recognition sensor and fingerprint recognition device of mobile communication mterminal Download PDFInfo
- Publication number
- CN1766904A CN1766904A CNA2005100635956A CN200510063595A CN1766904A CN 1766904 A CN1766904 A CN 1766904A CN A2005100635956 A CNA2005100635956 A CN A2005100635956A CN 200510063595 A CN200510063595 A CN 200510063595A CN 1766904 A CN1766904 A CN 1766904A
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
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- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
A fingerprint recognition sensor and a finger print recognition device for a mobile terminal using the same are provided to solve a problem that a lock is released when wrongly recognizing an imitated fingerprint as a normal fingerprint. CONSTITUTION: A voltage generator(101) applies voltage to a surface of a touched finger by generating AC voltage. A power supplier(102) supplies operational power of the fingerprint recognition sensor(105) by properly transforming the voltage of a battery(103) of the mobile terminal. The fingerprint recognition sensor recognizes the fingerprint with a voltage difference generated from a fingerprint pattern by the voltage of a specific frequency applied to the surface of the fingerprint from the voltage generator. A controller(104) obtains a fingerprint image by using the detected voltage difference.
Description
Technical field
The present invention relates to a kind of fingerprint Identification sensor and device of mobile communication terminal, especially relate to and to solve existing fingerprint identification device and can't correctly discern the model fingerprint, it is identified as correct fingerprint and the fingerprint Identification sensor of the problem that unlocks and the fingerprint identification device that utilizes the mobile communication terminal of this sensor.
Background technology
Recently the mobile communication terminal that occurs has not only comprised the additional function relevant with communication, more built-in as Mobile banking etc. based on the various additional functions that utilize the userspersonal information, the importance of mobile phone lock function also becomes more and more important thereupon.
At present, the employed lock function of above-mentioned mobile communication terminal all is to use password to realize usually.Exactly to phone breathe out, 700 services of rate costliness, overseas call etc. lock, and must input the mode that correct password could normal use when needs use these functions.
But be to use the shortcoming of the lock function maximum of above-mentioned pin mode to be, just lost in all senses in case password is revealed.In order to prevent that this class situation from taking place, and all needs to change password and remember new password at every turn.
So, recently for the lock function of auxiliary above-mentioned pin mode so that improve locking effect, making great efforts to have loaded terminal device development based on the locking device of fingerprint identification technology.
Carry above-mentioned fingerprint identification device and can improve the security performance of functions such as Mobile banking, and develop the fingerprint recognition mobile phone of functions such as supports sales point fingerprint clearing service even automobile starting, also discuss in the research.Can use the various fields such as finger print identifying login button of using in addition, all utilize the device of fingerprint identification technology at active development in the USB port of terminal device.
In addition, most important fingerprint Identification sensor improves research work and is also carrying out in anxiety in above-mentioned fingerprint identification device.Traditional fingerprint Identification sensor is meant the square shape that can contact all surfaces of thumb, but consider the size issue of small handsets recently, carrying out on the sensor of left and right directions rectangular (Bar) shape, discerning the development of " sliding type " of fingerprint by the finger that slides.
But aforesaid fingerprint recognition engines easily also has its problem, can not distinguish model fingerprint and true fingerprint exactly.The induction identification fingerprint of thermoinduction (Thermal) technology can be used traditionally, but, also true fingerprint might be identified as long as the model fingerprint is enclosed within on the finger by heat.
Summary of the invention
Technical matters to be solved by this invention is the mobile communication terminal fingerprint identification device that a kind of fingerprint Identification sensor is provided and utilizes this sensor, it can solve existing fingerprint identification device can't correctly discern the model fingerprint, with its problem that is identified as true fingerprint and unlocks.Communication
To achieve these goals, fingerprint Identification sensor provided by the present invention possesses the alternating voltage that produces assigned frequency and contacts to institute to be pointed outer fingerprint the one-piece type voltage generator of voltage is provided, and comprises and be used to detect the above-mentioned a plurality of fingerprint identification unit that flow through outer fingerprint voltage; To utilize the detected magnitude of voltage of above-mentioned fingerprint identification unit to amplify a plurality of voltage amplifiers of output.
In addition, fingerprint identification device provided by the present invention comprises: provide the alternating voltage of assigned frequency to the fingerprint Identification sensor surface, and provide the voltage generator of above-mentioned voltage for contacting its surperficial finger surface; Appropriate change terminal device cell voltage also provides the power suppling part of working power to above-mentioned fingerprint Identification sensor; According to the assigned frequency voltage that is provided to above-mentioned finger surface from above-mentioned voltage generator, utilize the voltage difference that produces by fingerprint pattern (fingerprint crest line) to identify the fingerprint Identification sensor of fingerprint; The control part of fingerprint pattern is obtained in utilization by the detected voltage difference of above-mentioned fingerprint Identification sensor.
Fingerprint Identification sensor of the present invention and the mobile communication terminal fingerprint identification device that utilizes this sensor, it is the conductive characteristic that utilizes skin, produce the voltage of assigned frequency on the surface of fingerprint Identification sensor, detection is obtained fingerprint from the voltage difference of pattern (fingerprint crest line) generation of formation fingerprint and with this.Can solve existing fingerprint identification device like this and can't correctly discern the model fingerprint, with its problem that is identified as correct fingerprint and unlocks.
Description of drawings
Fig. 1 has been to use the block diagram of mobile communication terminal fingerprint identification device structure of the present invention;
Fig. 2 is to use the needed fingerprint Identification sensor structured flowchart of the fingerprint identification device among the present invention;
Fig. 3 is to use the fingerprint Identification sensor among the present invention and the example schematic of utilizing directionkeys to control.
Wherein, Reference numeral:
101: voltage generator 102: power suppling part
103: battery 104: control part
105: fingerprint Identification sensor
Embodiment
Below, will it be further specified with reference to the accompanying drawing of subsidiary feasibility embodiment of the present invention.
At first need to prove, add reference marks, when same inscape is represented, used identical symbol as far as possible on other accompanying drawing by inscape to each accompanying drawing.
In addition, the explanation to carrying out in following explanation as concrete many detailed features such as treatment scheme, its purpose is to help better to understand the present invention.Do not have these detailed features can realize this point of the present invention yet, will be perfectly clear as long as have the people of this technical field rudimentary knowledge.
In addition, be an impediment to known function and formation that main points of the present invention are described cheer and brightly, with the explanation of omitting to its content.
Usually, fingerprint recognition mode up to now what generally use is optical mode.Be about to high light directive glass plate, make that the fingerprint shape obtains reflection between the finger that is placed on the glass plate, and the fingerprint image of reflection will be input to CCD by the lens of high index of refraction.
The fingerprint image of input will utilize special algorithm to obtain the numberization processing.Be not and special mode can make the fingerprint shape more accurately obtain graphically, but moisture that fingerprint carries or lubricant component change its refractive index, make fingerprint image can accurately be input to CCD.
The fingerprint identification method that also has diode mode in addition, comprise changing and obtain the method for finger print information, and utilize magnetic field or ultrasonic to convert the fingerprint image of acquisition to electronic signal to obtain the method for fingerprint by the amount of charge that reads the finger pressure that is placed on semiconductor integrated package top and hot state sensor.
The development trend that presents recently is that the optical mode to fingerprint image scanning from simple is converted to the semiconductor integrated package mode of having utilized physiology characteristic (Biometrics).The present invention utilizes this physiology characteristic to prevent the use of model fingerprint, and the technology that only can discern user's actual fingerprint is provided.
Fig. 1 is the block diagram that has used mobile communication terminal fingerprint identification device structure of the present invention.As shown in the figure, it is included in the alternating voltage of the part generation assigned frequency on fingerprint Identification sensor 105 surfaces, the voltage generator 101 of above-mentioned voltage is provided to its surperficial finger surface of contact, appropriate change battery 103 voltages also provide the power suppling part 102 of working power to above-mentioned fingerprint Identification sensor 105, according to the assigned frequency voltage that is provided to above-mentioned finger surface from above-mentioned voltage generator, identification is obtained fingerprint pattern by the fingerprint Identification sensor 105 and the utilization of the semiconductor integrated package type of the voltage difference of fingerprint pattern (fingerprint crest line) generation by the detected voltage difference of above-mentioned fingerprint Identification sensor control part 104.
Above-mentioned voltage generator can produce the voltage of about 2MHz frequency and be provided to the surface of fingerprint Identification sensor 105, contact the voltage that also can flow through assigned frequency on the user's finger that has conductive characteristic on its surface, detect the voltage that flows through outer fingerprint by each unit that constitutes fingerprint Identification sensor.
But the model fingerprint did not stay so do not have voltage because be non-conductive material, and each unit of fingerprint Identification sensor also can't detect voltage, thereby can't carry out fingerprint recognition.
Certainly, above-mentioned voltage generator can not provide voltage to fingerprint Identification sensor integral body, but only should provide voltage by the regional area (as the finger both-side ends) to finger when the user contacts finger.That is to say that even fingerprint Identification sensor and voltage generator are integrated, portion also should distinguish within it.
Below, the concrete structure of 2 pairs of above-mentioned fingerprint Identification sensors is in conjunction with the accompanying drawings described.
Fig. 2 is for using the needed fingerprint Identification sensor structured flowchart of fingerprint identification device among the present invention, and the voltage that produces by the voltage generator 101 that is integrated with fingerprint Identification sensor or installs separately can flow through the outer fingerprint of finger.Fingerprint Identification sensor 105 of the present invention be constituted by being used to detect above-mentioned a plurality of fingerprint identification unit 105a of outer fingerprint voltage, a plurality of voltage amplifier 105b that can utilize the detected magnitude of voltage amplification of above-mentioned fingerprint identification unit to export of flowing through.
Though in said structure, omit, recommend A/D converter (being to mark among the figure) and will output to the interim before internal memory of preserving (not marking among the figure) of control part (MSM) to be integrated with fingerprint Identification sensor through the finger print data of A/D conversion.If consider production unit cost and interface problem, also it can be separated.
The fingerprint Identification sensor of structure as implied above, when having 16*192 unit under graphic model the electric current of the about 20 ~ 30mA of scanning fingerprint needs.As shown in Figure 3, to fingerprint detection territory element mobile monitor can also the detection side to, then need the electric current of about 3mA this moment.And under usual waiting status, only need very faint electric current (about 350uA).
As mentioned above, fingerprint Identification sensor of the present invention and the mobile communication terminal fingerprint identification device that utilizes this sensor, it is the conductive characteristic that utilizes skin, produce the voltage of assigned frequency on the surface of fingerprint Identification sensor, detection is obtained fingerprint from the voltage difference of pattern (fingerprint crest line) generation of formation fingerprint and with this.Can solve existing fingerprint identification device like this and can't correctly discern the model fingerprint, with its problem that is identified as correct fingerprint and unlocks.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (9)
1. fingerprint Identification sensor, it is characterized in that, possess the alternating voltage that produces assigned frequency and contact and point outer fingerprint the one-piece type voltage generator of voltage is provided, and comprise and be used to detect the above-mentioned a plurality of fingerprint identification unit that flow through outer fingerprint voltage to institute; To utilize the detected magnitude of voltage of above-mentioned fingerprint identification unit to amplify a plurality of voltage amplifiers of output.
2. fingerprint Identification sensor according to claim 1 is characterized in that, separation voltage generator from above-mentioned fingerprint Identification sensor makes it be independent of fingerprint identification device.
3. fingerprint Identification sensor according to claim 2, it is characterized in that, also possess with detected voltage in each fingerprint identification unit in the above-mentioned fingerprint Identification sensor carry out digitizing conversion A/D converter, will output to the internal memory of interim preservation before the control part through the finger print data of A/D conversion, described A/D converter and described internal memory and described fingerprint Identification sensor are integrated.
4. the fingerprint identification device of a mobile communication terminal is characterized in that, comprising:
Part on the fingerprint Identification sensor surface produces the alternating voltage of assigned frequency and the voltage generator of above-mentioned voltage is provided to the finger surface that is contacted;
Appropriate change terminal device cell voltage, and the power suppling part of working power is provided to above-mentioned fingerprint Identification sensor;
According to the assigned frequency voltage that is provided to above-mentioned finger surface from above-mentioned voltage generator, the voltage difference of utilizing fingerprint pattern to produce is discerned the fingerprint Identification sensor of fingerprint;
The control part of fingerprint pattern is obtained in utilization by the detected voltage difference of above-mentioned fingerprint Identification sensor.
5. mobile communication terminal fingerprint identification device according to claim 4 is characterized in that, above-mentioned fingerprint Identification sensor is by semiconductor integrated package type constitution.
6. mobile communication terminal fingerprint identification device according to claim 4, it is characterized in that, above-mentioned voltage generator produces the voltage of about 2MHz frequency and is provided to the part on fingerprint Identification sensor surface, makes the voltage that also can flow through assigned frequency on the user's finger that has conductive characteristic that contacts its surface.
7. mobile communication terminal fingerprint identification device according to claim 6 is characterized in that, when above-mentioned voltage generator provided voltage in fingerprint Identification sensor, only the end portion in the user's finger contacts part provided voltage.
8. mobile communication terminal fingerprint identification device according to claim 4 is characterized in that, described fingerprint pattern is the fingerprint crest line.
9. mobile communication terminal fingerprint identification device according to claim 7 is characterized in that, the end portion in the described user's finger contacts part is the finger both-side ends.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040087497 | 2004-10-29 | ||
| KR1020040087497A KR20060038274A (en) | 2004-10-29 | 2004-10-29 | Fingerprint sensor and fingerprint recognition device of mobile communication terminal using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1766904A true CN1766904A (en) | 2006-05-03 |
| CN100382092C CN100382092C (en) | 2008-04-16 |
Family
ID=36742779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100635956A Expired - Fee Related CN100382092C (en) | 2004-10-29 | 2005-04-13 | Fingerprint recognition sensor and fingerprint recognition device of mobile communication mterminal |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR20060038274A (en) |
| CN (1) | CN100382092C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281589B (en) * | 2007-04-04 | 2010-06-16 | 鸿富锦精密工业（深圳）有限公司 | Fingerprint identification device and portable electronic device |
| CN104252621A (en) * | 2014-09-29 | 2014-12-31 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and fingerprint identification method |
| CN104866803A (en) * | 2014-02-20 | 2015-08-26 | 上海思立微电子科技有限公司 | Fingerprint information detection circuit |
| WO2016041174A1 (en) * | 2014-09-18 | 2016-03-24 | 华为技术有限公司 | Fingerprint identification apparatus |
| CN105518707A (en) * | 2013-09-09 | 2016-04-20 | 三星电子株式会社 | Apparatus and method for recognizing fingerprint |
| CN106133748A (en) * | 2012-05-18 | 2016-11-16 | 苹果公司 | Apparatus, method and graphical user interface for manipulating user interface based on fingerprint sensor input |
| CN106845402A (en) * | 2017-01-20 | 2017-06-13 | 海迪科（南通）光电科技有限公司 | A kind of novel finger print identification sensor |
| US10275585B2 (en) | 2007-09-24 | 2019-04-30 | Apple Inc. | Embedded authentication systems in an electronic device |
| US11409410B2 (en) | 2020-09-14 | 2022-08-09 | Apple Inc. | User input interfaces |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6259804B1 (en) * | 1997-05-16 | 2001-07-10 | Authentic, Inc. | Fingerprint sensor with gain control features and associated methods |
| CA2289073C (en) * | 1998-03-30 | 2004-06-22 | Enix Corporation | Information recorder/processor and equipment/system controller both provided with fingerprint sensor |
| JP2003075135A (en) * | 2001-08-31 | 2003-03-12 | Nec Corp | Fingerprint image input device and biometric identification method using fingerprint image |
-
2004
- 2004-10-29 KR KR1020040087497A patent/KR20060038274A/en not_active Ceased
-
2005
- 2005-04-13 CN CNB2005100635956A patent/CN100382092C/en not_active Expired - Fee Related
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101281589B (en) * | 2007-04-04 | 2010-06-16 | 鸿富锦精密工业（深圳）有限公司 | Fingerprint identification device and portable electronic device |
| US10275585B2 (en) | 2007-09-24 | 2019-04-30 | Apple Inc. | Embedded authentication systems in an electronic device |
| US11468155B2 (en) | 2007-09-24 | 2022-10-11 | Apple Inc. | Embedded authentication systems in an electronic device |
| US10956550B2 (en) | 2007-09-24 | 2021-03-23 | Apple Inc. | Embedded authentication systems in an electronic device |
| US11989394B2 (en) | 2012-05-18 | 2024-05-21 | Apple Inc. | Device, method, and graphical user interface for manipulating user interfaces based on fingerprint sensor inputs |
| CN106133748A (en) * | 2012-05-18 | 2016-11-16 | 苹果公司 | Apparatus, method and graphical user interface for manipulating user interface based on fingerprint sensor input |
| US11209961B2 (en) | 2012-05-18 | 2021-12-28 | Apple Inc. | Device, method, and graphical user interface for manipulating user interfaces based on fingerprint sensor inputs |
| CN111310619A (en) * | 2012-05-18 | 2020-06-19 | 苹果公司 | Device, method and graphical user interface for manipulating a user interface |
| CN111310619B (en) * | 2012-05-18 | 2021-06-04 | 苹果公司 | Device, method and graphical user interface for manipulating a user interface |
| CN106133748B (en) * | 2012-05-18 | 2020-01-31 | 苹果公司 | Apparatus, method, and graphical user interface for manipulating a user interface based on fingerprint sensor input |
| CN105518707A (en) * | 2013-09-09 | 2016-04-20 | 三星电子株式会社 | Apparatus and method for recognizing fingerprint |
| CN105518707B (en) * | 2013-09-09 | 2020-06-12 | 三星电子株式会社 | Apparatus and method for identifying fingerprints |
| CN104866803A (en) * | 2014-02-20 | 2015-08-26 | 上海思立微电子科技有限公司 | Fingerprint information detection circuit |
| CN104866803B (en) * | 2014-02-20 | 2018-06-05 | 上海思立微电子科技有限公司 | A kind of finger print information detection circuit |
| CN105612532A (en) * | 2014-09-18 | 2016-05-25 | 华为技术有限公司 | Fingerprint identification apparatus |
| CN105612532B (en) * | 2014-09-18 | 2019-08-13 | 华为技术有限公司 | fingerprint identification device |
| US10296774B2 (en) | 2014-09-18 | 2019-05-21 | Huawei Technologies Co., Ltd. | Fingerprint recognition apparatus |
| WO2016041174A1 (en) * | 2014-09-18 | 2016-03-24 | 华为技术有限公司 | Fingerprint identification apparatus |
| CN104252621A (en) * | 2014-09-29 | 2014-12-31 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and fingerprint identification method |
| CN106845402A (en) * | 2017-01-20 | 2017-06-13 | 海迪科（南通）光电科技有限公司 | A kind of novel finger print identification sensor |
| US11409410B2 (en) | 2020-09-14 | 2022-08-09 | Apple Inc. | User input interfaces |
| US11703996B2 (en) | 2020-09-14 | 2023-07-18 | Apple Inc. | User input interfaces |
| US12430000B2 (en) | 2020-09-14 | 2025-09-30 | Apple Inc. | User input interfaces |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060038274A (en) | 2006-05-03 |
| CN100382092C (en) | 2008-04-16 |
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Owner name: LANGCHAO LEJIN DIGITAL MOBILE COMMUNICATION CO., L Free format text: FORMER OWNER: LG ELECTRONICS (CHINA) R + D CENTER CO., LTD. Effective date: 20120323 |
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Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 264001 YANTAI, SHANDONG PROVINCE |
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Effective date of registration: 20120323 Address after: 264001 No. 228 Changjiang Road, Yantai economic and Technological Development Zone, Shandong, China Patentee after: Langchao Lejin Digital Mobile Communication Co., Ltd. Address before: Two Beijing 100102 Chaoyang District city in Wangjing Lize Park No. 203 Petrova building block B Patentee before: LG Electronic (China) Research and Development Center Co., Ltd. |
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