CN101097598A - Device for building and inputting finger print image by voltage-sensitive sensor - Google Patents
Device for building and inputting finger print image by voltage-sensitive sensor Download PDFInfo
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- CN101097598A CN101097598A CNA2007100871680A CN200710087168A CN101097598A CN 101097598 A CN101097598 A CN 101097598A CN A2007100871680 A CNA2007100871680 A CN A2007100871680A CN 200710087168 A CN200710087168 A CN 200710087168A CN 101097598 A CN101097598 A CN 101097598A
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Abstract
The invention relates to a kind of method to produce input device of fingerprint image using pressure sensor, which belongs to the field of fingerprint identification, picture transmission and sensor. Firstly, several pressure sensors are mounted transversely and longitudinally whose biggest radius is smaller than single pressure sensor on the insulated board whose square is bigger that one finger to form an array that consists of pressure sensors, and every sensor can generate one heavy current signal when pressed, and the sensor without pressed can not generate current signal; when finger is put on the sensor array, the protruding part of finger will trigger the sensor, and the sensor will generate one heavy current signal; because every sensor in array represents one pixel on the finger image, and the weak and strong signal generated by sensor array can form a binary finger image. The advantages of invention are that the binary finger image can be gathered by the method, and provide convenience for subsequent finger identification, and improve the speed of finger identification.
Description
Technical field
The present invention relates to a kind of method of utilizing the voltage sensitive sensor device for building and inputting finger print image, belong to fingerprint recognition, image transmission, sensor technical field.
Background technology
The pattern that fingerprint has is unique for the individual, is to be used to identify a sign that the people is very useful therefore.In recent years, developing the fingerprint identification device that fingerprint application is identified in the individual.More particularly, this fingerprint identification device compares by fingerprint image that finger print input device is read in and the people's of registration fingerprint image data in advance and carries out individual evaluation.Attempting this fingerprint identification device is installed in the massaging device, as personal computer, PDA (personal digital assistant) and cell phone.
For the fingerprint equipment or the system that in various fields, use this technology, the collection of finger print data and the transmission ring that is absolutely necessary, no matter this equipment or system utilizes computing machine or utilize flush bonding processor to carry out fingerprint recognition all will obtain fingerprint image data from sensor earlier.The quality height of the fingerprint image of sensor output is very big to the performance impact of using system.The high-quality fingerprint image data generally is that data volume is very big with corresponding each the analog acquisition signal of the multiple bit digital signal after the analog to digital conversion.
The defective of existing fingerprint input technology: the one, existing finger print input device generally adopts optical device to read in fingerprint image, changing fingerprint image into binary image then handles, therefore, the place one's entire reliance upon quality of light source and the sensitivity of optical device of the quality of fingerprint image; The 2nd, the fingerprint image data amount that adopts optical device to read in is very big, is unfavorable for that embedded device handles (especially mobile communications device).
Goal of the invention
The objective of the invention is to propose a kind of method of utilizing the voltage sensitive sensor device for building and inputting finger print image, can directly gather the binary image of fingerprint.
The method of utilizing the voltage sensitive sensor device for building and inputting finger print image that the present invention proposes may further comprise the steps:
(1) a plurality of surface of contact maximum radius is arranged in horizontal and vertical mode respectively less than the voltage sensitive sensor of fingerprint wall scroll gully width at area greater than the insulcrete of single finger area, form an array of forming by voltage sensitive sensor, produce a forceful electric power signal when each sensor triggers being under pressure, the sensor that is not under pressure does not produce electric signal;
(2) when finger was positioned on the sensor array, the projection of finger print will trigger sensor, and sensor produces the forceful electric power signal;
(3) because each sensor unit in the sensor array is all represented a picture element in the fingerprint image, therefore, the strong and weak signals that is produced by sensor array has just formed the fingerprint image after the binaryzation.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1, the 1st, the array that a plurality of sensor units are formed, the 2nd, single-sensor unit.
Embodiment
The method of utilizing the voltage sensitive sensor device for building and inputting finger print image that the present invention proposes, at first a plurality of surface of contact maximum radius are arranged in horizontal and vertical mode respectively less than the voltage sensitive sensor of fingerprint wall scroll gully width on greater than the insulcrete of single finger area at area, form an array of forming by voltage sensitive sensor, produce a forceful electric power signal when each sensor triggers being under pressure, the sensor that is not under pressure does not produce electric signal; When finger was positioned on the sensor array, the projection of finger print will trigger sensor, and sensor produces the forceful electric power signal; Because each sensor unit in the sensor array is all represented a picture element in the fingerprint image, therefore, the strong and weak signals that is produced by sensor array has just formed the fingerprint image after the binaryzation.
Claims (2)
1, a kind of method of utilizing the voltage sensitive sensor device for building and inputting finger print image is characterized in that this method may further comprise the steps:
(1) a plurality of surface of contact maximum radius is arranged in horizontal and vertical mode respectively less than the voltage sensitive sensor of fingerprint wall scroll gully width at area greater than the insulcrete of single finger area, form an array of forming by voltage sensitive sensor, produce a forceful electric power signal when each sensor triggers being under pressure, the sensor that is not under pressure does not produce electric signal;
(2) when finger was positioned on the sensor array, the projection of finger print will trigger sensor, and sensor produces the forceful electric power signal;
(3) because each sensor unit in the sensor array is all represented a picture element in the fingerprint image, therefore, the strong and weak signals that is produced by sensor array has just formed the fingerprint image after the binaryzation.
2, the method for claim 1 is characterized in that the contact area of single-sensor unit and finger must be less than the width in fingerprint wall scroll gully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100871680A CN101097598A (en) | 2007-03-23 | 2007-03-23 | Device for building and inputting finger print image by voltage-sensitive sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100871680A CN101097598A (en) | 2007-03-23 | 2007-03-23 | Device for building and inputting finger print image by voltage-sensitive sensor |
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| Publication Number | Publication Date |
|---|---|
| CN101097598A true CN101097598A (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100871680A Pending CN101097598A (en) | 2007-03-23 | 2007-03-23 | Device for building and inputting finger print image by voltage-sensitive sensor |
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| CN (1) | CN101097598A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021374A (en) * | 2014-05-28 | 2014-09-03 | 上海思立微电子科技有限公司 | Fingerprint sensor array |
| WO2015101266A1 (en) * | 2013-12-30 | 2015-07-09 | Byd Company Limited | Sensor for detecting fingerprint and fingerprint identification apparatus and controlling method of sensor for detecting fingerprint |
| CN105791548A (en) * | 2016-02-25 | 2016-07-20 | 努比亚技术有限公司 | Voice information broadcast device and method |
| CN106022047A (en) * | 2016-05-24 | 2016-10-12 | 广东欧珀移动通信有限公司 | Fingerprint unlocking method and terminal |
| CN106529454A (en) * | 2016-10-28 | 2017-03-22 | 京东方科技集团股份有限公司 | Biological recognition device and biological recognition method |
| CN106570442A (en) * | 2015-10-09 | 2017-04-19 | 小米科技有限责任公司 | Fingerprint identification method and device |
| US9679186B2 (en) | 2013-12-27 | 2017-06-13 | Byd Company Limited | Capacitance detecting device for fingerprint identification and fingerprint identification apparatus comprising the same |
| CN108599955A (en) * | 2018-03-26 | 2018-09-28 | 郑州工程技术学院 | A kind of authentication system and method based on big data |
| CN109725769A (en) * | 2018-12-24 | 2019-05-07 | 北京华大九天软件有限公司 | A kind of optimization method of finger model |
-
2007
- 2007-03-23 CN CNA2007100871680A patent/CN101097598A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9679186B2 (en) | 2013-12-27 | 2017-06-13 | Byd Company Limited | Capacitance detecting device for fingerprint identification and fingerprint identification apparatus comprising the same |
| US9990529B2 (en) | 2013-12-30 | 2018-06-05 | Byd Company Limited | Sensor for detecting fingerprint and identification apparatus and controlling method of sensor for detecting fingerprint |
| WO2015101266A1 (en) * | 2013-12-30 | 2015-07-09 | Byd Company Limited | Sensor for detecting fingerprint and fingerprint identification apparatus and controlling method of sensor for detecting fingerprint |
| CN104021374B (en) * | 2014-05-28 | 2018-03-30 | 上海思立微电子科技有限公司 | A kind of fingerprint sensor array |
| CN104021374A (en) * | 2014-05-28 | 2014-09-03 | 上海思立微电子科技有限公司 | Fingerprint sensor array |
| CN106570442A (en) * | 2015-10-09 | 2017-04-19 | 小米科技有限责任公司 | Fingerprint identification method and device |
| CN105791548A (en) * | 2016-02-25 | 2016-07-20 | 努比亚技术有限公司 | Voice information broadcast device and method |
| CN106022047A (en) * | 2016-05-24 | 2016-10-12 | 广东欧珀移动通信有限公司 | Fingerprint unlocking method and terminal |
| CN106022047B (en) * | 2016-05-24 | 2017-10-24 | 广东欧珀移动通信有限公司 | A kind of unlocked by fingerprint method and terminal |
| CN106529454A (en) * | 2016-10-28 | 2017-03-22 | 京东方科技集团股份有限公司 | Biological recognition device and biological recognition method |
| CN108599955A (en) * | 2018-03-26 | 2018-09-28 | 郑州工程技术学院 | A kind of authentication system and method based on big data |
| CN108599955B (en) * | 2018-03-26 | 2021-07-20 | 郑州工程技术学院 | Identity verification system and method based on big data |
| CN109725769A (en) * | 2018-12-24 | 2019-05-07 | 北京华大九天软件有限公司 | A kind of optimization method of finger model |
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Effective date of registration: 20090327 Address after: Room 413A, Violet building, east gate, Tsinghua University, Haidian District, Beijing, Beijing Applicant after: Beijing purple best code technology Co., Ltd. Address before: Room 415, Violet building, east gate, Tsinghua University, Haidian District, Beijing, Beijing Applicant before: UNIS JIETONG TECHNOLOGY CO., LTD. |
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Owner name: BEIJING ZHIGUANG YOUMA SCIENCE + TECHNOLOGY CO., L Free format text: FORMER OWNER: ZIGUANG JIETONG SCIENCE CO., LTD. Effective date: 20090327 |
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Open date: 20080102 |