CN1529277A - Optical fingerprint collecting instrument for automatic inducing living-finger - Google Patents
Optical fingerprint collecting instrument for automatic inducing living-finger Download PDFInfo
- Publication number
- CN1529277A CN1529277A CNA2003101079332A CN200310107933A CN1529277A CN 1529277 A CN1529277 A CN 1529277A CN A2003101079332 A CNA2003101079332 A CN A2003101079332A CN 200310107933 A CN200310107933 A CN 200310107933A CN 1529277 A CN1529277 A CN 1529277A
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- Prior art keywords
- optical fingerprint
- prism
- probe
- finger
- processing circuit
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Abstract
The instrument comprises optical fingerprint collector and automatic sensing module for finger of living body. Characters of the invention are that the sensing module is composed of probe and signal processing circuit. The probe installed around image taking face of prism in the optical fingerprint collector covers the prism. The probe is connected to signal processing circuit. Output signal of the signal processing circuit is connected to the host of the fingerprint collector. Based on original optical fingerprint collector, the automatic sensing module is added into the invented collector so that the invented collector is capable of sensing finger of living body, and not sensing feigned finger of not living body. The invented collector transfers instruction to host actively, simplifies design of software and hardware utilized in host, increases processing speed, and reduces developing cost, providing features of compact module structure, low cost, suitable to volume production.
Description
Technical field
The present invention relates to a kind of fingerprint acquisition instrument, particularly can respond to the optical fingerprint acquisition instrument of a kind of automatic induction live finger of live finger and active transfer instruction starting host soft or hard work automatically.
Technical background
Existing optical finger print acquisition technique can not be responded to live finger automatically, causes host to inquire about it, constantly images acquired, and do a large amount of Flame Image Process work and can judge and have or not living body finger print, make the host software and hardware complicated, speed slows down, and power consumption increases.
Summary of the invention
The objective of the invention is to provide a kind of automatic induction module of live finger that on original optical fingerprint acquisition instrument basis, increases for the deficiency that solves above-mentioned technology, make it can respond to live finger automatically, improve induction speed, simplify the optical fingerprint acquisition instrument of automatic induction live finger of the design of hardware and software of host greatly.
In order to achieve the above object, the optical fingerprint acquisition instrument of a kind of automatic induction live finger that the present invention is designed, it comprises optical fingerprint acquisition instrument and the automatic induction module of live finger, it is characterized in that mobile points automatic induction module and is made up of probe and signal processing circuit, probe is installed on around the capture prism capture face of optical fingerprint acquisition instrument, and frame is lived the capture prism, probe is connected with signal processing circuit, and the output signal of signal processing circuit is connected with host in the optical fingerprint acquisition instrument; Described optical fingerprint acquisition instrument comprises: one, Optical system module, optical system is by light source, capture prism, lens are formed, the capture prism is an isosceles right-angle prism, light source and capture prism advance the light face and join, vertical and the lens axis of exiting surface is finished capture, focusing, conditioning and the imaging of fingerprint image; Two, digital image capturing module, digital image capturing module comprises optics COMS element and corresponding peripheral circuit, optics COMS element is an image acquisition quantization sensing device, optical axis with the sensor array centrally aligned optical system of optics COMS element, the lens of adjusting time system make its image planes overlap with the COMS target surface, finish optical system and become the work of image graph digital quantization, and finish interface sequence with host.At this, the automatic induction module of live finger, finishing the detection and the active transfer of live finger instructs to host, when finger is pinned the capture prism simultaneously and probe contact and will pass to signal processing circuit by probe from the faint power frequency component that civil power is sensed, the signal that signal processing circuit transmits according to probe is made the differentiation of live finger whether and is further transmitted and instruct to host.
The optical fingerprint acquisition instrument of the resulting a kind of automatic induction live finger of the present invention, on original optical fingerprint acquisition instrument, increase the automatic induction module of live finger, make it to respond to automatically live finger, active transfer is instructed to host, simplify the host design of hardware and software, performances such as the processing speed of increase host, power consumption reduce host development time and cost; Sensed activity body finger does not produce induction to the non-living body finger of forging, and improves the security of safe machine system; Each modular structure is simply compact, and production cost is low, is fit to produce in enormous quantities.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation;
Fig. 2 is the signal processing circuit embodiment circuit theory diagrams that mobile points automatic induction module;
Fig. 3 is digital image capturing module embodiment circuit theory diagrams.
Embodiment
The invention will be further described in conjunction with the accompanying drawings below by embodiment, but following embodiment does not limit content of the present invention.
Embodiment 1
As shown in Figure 1, the optical fingerprint acquisition instrument of a kind of automatic induction live finger that present embodiment is described, it comprises optical fingerprint acquisition instrument 1 and the automatic induction module 2 of live finger, mobile points automatic induction module 2 and is made up of probe 3 and signal processing circuit 4, probe 3 is installed on around the capture face of capture prism 5 of optical fingerprint acquisition instrument 1, and frame is lived capture prism 5, probe 3 is connected with signal processing circuit 4, as shown in Figure 2, the output signal of signal processing circuit 4 is connected with host 6 in the optical fingerprint acquisition instrument 1; Described optical fingerprint acquisition instrument 1 comprises: one, Optical system module, Optical system module comprises light source 7, capture prism 5, lens 8 are formed, capture prism 5 is isosceles right-angle prisms, light source 7 advances the light face with the capture prism and joins, vertical and lens 8 optical axises of exiting surface are finished capture, focusing, conditioning and the imaging of fingerprint image; Two, digital image capturing module, digital image capturing module comprises optics COMS element 9 and corresponding peripheral circuit 10, optics COMS element 9 is image acquisition quantization sensing devices, optical axis with the sensor array centrally aligned optical system of optics COMS element 9, the lens 8 of adjusting time system make its image planes overlap with the COMS target surface, finish optical system and become the work of image graph digital quantization, and finish interface sequence with host 6, at this, COMS element 9 can be bought the OV6630 model, as shown in Figure 3, wherein pin 3,4,9,12,17,19-26 and 47 is empty pin, all the other each pins are connected with peripheral circuit 10, because this content is a prior art, are not described in detail at this.The automatic induction module 2 of live finger, finishing the detection and the active transfer of live finger instructs to host 6, simultaneously and probe 3 contact and the faint power frequency component that will sense from civil power 3 is passed to signal processing circuit 4 by popping one's head in when finger is pinned capture prism 5, and the signal that signal processing circuit 4 transmits according to probe is made the differentiation of live finger whether and further transmitted and instruct to host 6.
Claims (1)
1, a kind of optical fingerprint acquisition instrument of automatic induction live finger, it comprises optical fingerprint acquisition instrument and the automatic induction module of live finger, it is characterized in that mobile points automatic induction module and is made up of probe and signal processing circuit, probe is installed on around the capture prism capture face of optical fingerprint acquisition instrument, and frame is lived the capture prism, probe is connected with signal processing circuit, and the output signal of signal processing circuit is connected with host in the optical fingerprint acquisition instrument; Described optical fingerprint acquisition instrument comprises: one, Optical system module, optical system are by light source, and capture prism, lens are formed, and the capture prism is an isosceles right-angle prism, and light source and capture prism advance the light face and join, the vertical and lens axis of exiting surface; Two, digital image capturing module, digital image capturing module comprises optics COMS element and corresponding peripheral circuit, optics COMS element is an image acquisition quantization sensing device, with the optical axis of the sensor array centrally aligned optical system of optics COMS element, adjust the lens that the time learns system its image planes are overlapped with the COMS target surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101079332A CN1529277A (en) | 2003-10-16 | 2003-10-16 | Optical fingerprint collecting instrument for automatic inducing living-finger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101079332A CN1529277A (en) | 2003-10-16 | 2003-10-16 | Optical fingerprint collecting instrument for automatic inducing living-finger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1529277A true CN1529277A (en) | 2004-09-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101079332A Pending CN1529277A (en) | 2003-10-16 | 2003-10-16 | Optical fingerprint collecting instrument for automatic inducing living-finger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1529277A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107251046A (en) * | 2015-10-23 | 2017-10-13 | 深圳市汇顶科技股份有限公司 | Optical fingerprint sensor and encapsulation |
| CN108268830A (en) * | 2016-12-30 | 2018-07-10 | 曦威科技股份有限公司 | Optical identification method |
| CN108564075A (en) * | 2018-06-29 | 2018-09-21 | 长春鸿达光电子与生物统计识别技术有限公司 | A kind of fingerprint image of four fingers acquisition method and device |
| US10635878B2 (en) | 2015-10-23 | 2020-04-28 | Shenzhen GOODIX Technology Co., Ltd. | Optical fingerprint sensor with force sensing capability |
-
2003
- 2003-10-16 CN CNA2003101079332A patent/CN1529277A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107251046A (en) * | 2015-10-23 | 2017-10-13 | 深圳市汇顶科技股份有限公司 | Optical fingerprint sensor and encapsulation |
| US10635878B2 (en) | 2015-10-23 | 2020-04-28 | Shenzhen GOODIX Technology Co., Ltd. | Optical fingerprint sensor with force sensing capability |
| CN107251046B (en) * | 2015-10-23 | 2021-02-12 | 深圳市汇顶科技股份有限公司 | Optical fingerprint sensor and package |
| CN108268830A (en) * | 2016-12-30 | 2018-07-10 | 曦威科技股份有限公司 | Optical identification method |
| CN108268830B (en) * | 2016-12-30 | 2021-03-30 | 莆田杰木科技有限公司 | Optical recognition method |
| CN108564075A (en) * | 2018-06-29 | 2018-09-21 | 长春鸿达光电子与生物统计识别技术有限公司 | A kind of fingerprint image of four fingers acquisition method and device |
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