KR200209160Y1 - Shape recognition device - Google Patents

Abstract

The present invention is a shape recognition device that detects the presence or absence of an object or abnormality and shape by directly contacting an object, and object shape recognition capable of detecting a conductive object such as a finger by a direct contact method even if the electrical resistance is high. The present invention relates to an apparatus, and more particularly, to a configuration of a shape sensing unit for detecting a shape and a movement of an object. The shape recognition apparatus of the present invention as described above transmits a signal upward on a signal transmission line formed on an insulating substrate whose main surfaces are parallel to each other. A shape detecting unit having an electrode arranged to be connected to the electrode, a sealing layer encapsulating the electrode and the signal transmission line together with one side of the substrate, and a shape or moving direction of an object by receiving a signal detected by the shape detecting unit. A shape discriminating unit for discriminating a signal and a display / control unit for displaying or controlling the signal determined by the shape discriminating unit It includes.

Description

Shape Recognition Device {SHAPE RECOGNITION DEVICE}

The present invention is a shape recognition device that detects the presence or absence of an object and the shape and movement through direct contact with the object, even if the electrical resistance is high, the sensing unit that can detect a conductive object such as a finger by a direct contact method In more detail, the present invention relates to a configuration of a shape detecting unit that detects a shape and a movement thereof.

As one embodiment of a device for recognizing and determining a shape of an object according to the prior art, there is a fingerprint shape recognition device of a human body, and the fingerprint shape recognition device distinguishes an owner of a selected specific fingerprint shape, thereby accessing a specific object. It can be allowed selectively.

In the prior art as described above, the use of a mechanical lock, the structural principle of the lock is well understood, and the problem that the security is easily released by a person with impure intention, improves the problem, each person has a different form inherent By using a fingerprint recognition or sensing device that recognizes a fingerprint, only certain selected people could be restricted to allow access to certain objects of use.

In the shape detecting unit of the fingerprint shape recognizing apparatus having the function of recognizing the shape of the fingerprint as described above, the means of the detecting device for detecting the shape of the fingerprint includes an optical sensing device using an imaging element, a human body or an object as an indirect contact type. Indirect contact shape detection unit that measures the amount of electric charge charged in the electricity as the minute distance between the acid and the bone of the fingerprint or the object, and shape detection which directly detects the electric signal flowing minutely through the human body or object as a direct contact type. Wealth and so on.

Hereinafter, a shape detecting unit of an object shape recognition apparatus according to the related art will be described with reference to the accompanying drawings.

1 is a functional block diagram of an apparatus for recognizing a shape of an object, and FIGS. 2A and 2B are diagrams illustrating a configuration and use state of an indirect contact shape detecting unit according to an exemplary embodiment of the prior art.

Referring to the drawings, in general, the object shape recognition device for recognizing the shape of the fingerprint or the object, the shape detecting unit 10 for detecting an electric signal flowing finely through the fingerprint 40 or the object or the amount of charged charges ), And a shape discrimination unit 20 for outputting a control signal by comparing / determining whether an electric signal corresponding to the shape of an object or a fingerprint applied from the shape detecting unit 10 is of a specific shape selected, and outputting a control signal. And a display / control unit 30 which performs a necessary shape display or control function by the control signal applied from the shape discriminating unit 20.

Although not shown in the drawing, as an embodiment according to the prior art, the optical shape detecting unit 10 using the image pickup device is difficult to determine the authenticity and the optical equipment when using a photograph instead of the real object. There is an expensive problem, some of which have been used for limited purposes.

As an embodiment of the prior art, the description of the indirect contact shape detecting unit 10 shown in Figures 2a and 2b is as follows.

The charges charged in the valleys 42 and the valleys 42, which are the protruding portions due to the bending of the fingerprint 40 or a specific object, are more than the distance between the valleys 42 and the valleys 44. A plurality of first electrodes 121 and a plurality of second electrodes 122 formed at small intervals are sensed, and the plurality of first electrodes 121 and second electrodes 122 are disposed on the insulating substrate 110. Each of the first and second electrodes 121 and 122 is formed in a line through a semiconductor manufacturing process, and the plurality of first and second electrodes 121 and 122 are respectively connected to the shape determining unit 20 through a line (not shown).

An abrasion resistant dielectric 130 is also covered over the first and second electrodes 121 and 122 through a semiconductor manufacturing process.

The action of the indirect contact shape sensing unit 10 by the above configuration is such that the electric charges charged by the fingerprint 40 or the object are sensed by the plurality of first and second electrodes 121 and 122. do. At this time, the amount of charge sensed by the electrode by the minute distance difference between the plurality of first and second electrodes 121 and 122 and the fingerprint 40 or the acid 42 and the valley 44 of the object is There will be a difference.

The plurality of electrodes may be arranged in a plurality of rows as necessary, and the shape of the signal is determined by the shape of the fingerprint 40 or the object through a signal transmission line not shown in the figure of the difference in the amount of charge detected by the plurality of electrodes It is applied to the unit 20.

The shape determining unit 20 processes the received signal and converts the received signal into data corresponding to the shape of the fingerprint 40 or the object, and the shape of the fingerprint or object recorded and stored as data in the shape determining unit 20. By determining whether or not the selected shape is compared and applying the necessary control signal to the display / control unit 30, the display / control unit 30 drives the opening and closing of the security device or the electronic circuit.

In addition, when the fingerprint 40 or the object detected by the shape detecting unit 10 moves in a specific direction, the shape determining unit 20 receives a change in the amount of charge detected by the electrodes arranged in a plurality of rows and a plurality of shapes. Functions of a mouse or a joy stick used in a multimedia device by processing a detection signal to determine a moving direction of an object and applying a necessary control signal to the display / control unit 30. can do.

However, the prior art of the indirect contact type as described above is eventually worn out by repeated use of the wear-resistant dielectric 130 to which the fingerprint 40 or the object is contacted, and the plurality of electrodes by the wear of the dielectric 130 Many errors occur in the amount of charge detection due to the minute distance between the fingerprint 40 or the object, there was a problem that the shape or position of the object can not be accurately identified.

The dielectric 130 as described above has a limitation in increasing abrasion resistance, and the indirect contact shape sensing unit 10 as described above is manufactured using a thin film manufacturing process of a semiconductor, which is expensive, and thus has a limited problem. Had been used.

In order to solve the problems of the prior art as described above, an object of the present invention is to connect the electrode and the signal transmission line and the electrode disposed in the signal transmission line formed on an insulating substrate parallel to the main surface to enable signal transmission A shape detector having a sealing layer encapsulated together with one side of the substrate, a shape determiner configured to determine a shape or a moving direction of an object by receiving a signal detected by the shape detector, and determined by the shape determiner The present invention provides a precise shape recognition apparatus through direct contact with an object by including a display / control unit for displaying or controlling a signal.

1 is a functional block diagram of an object shape recognition device for detecting a shape of an object;

2a and b is a configuration and use state diagram of the indirect contact shape detection apparatus according to an embodiment of the prior art,

3 is a configuration diagram in which a beam member, a wire disposed radially, and an electrode disposed across the beam member are disposed on a substrate formed according to the present invention;

4A to 4C are cross-sectional views sequentially illustrating electrode arrangement, molding, and polishing steps according to line A-A of FIG.

FIG. 5 is a cross-sectional view after grinding along line B-B in FIG. 3,

6 is an object shape recognition state diagram of the direct contact shape detection unit according to the present invention,

Figure 7 is a modified embodiment formed in accordance with the present invention is a configuration diagram in which the wires arranged in a row arranged on the substrate half-turned and the electrode installed on the end of the wire is arranged,

8 is a cross-sectional view taken along the line C-C of FIG.

9 is an enlarged perspective view of the electrode erected on the wire of FIG. 8;

10 is a processing flowchart of the first embodiment,

Fig. 11 is a processing flowchart of the second embodiment.

Explanation of symbols on the main parts of the drawings

10: shape detection unit 20: shape determination unit

30: display / control unit 40: fingerprint

42: mountain portion of fingerprint 44: bone portion of fingerprint

110, 250, 280: substrate 121, 122, 263, 283: electrode

265, 285: transmission line 270: insulating beam member

The present invention is devised to achieve the above object, the shape recognition device of the first embodiment of the present invention is capable of transmitting the signal upward on the signal transmission line 265 formed on the insulating substrate 250 whose main surface is parallel to each other A shape detecting unit 10 which detects contact and movement of an object by having a conductive layer 263 connected to the conductive electrode 263 and a sealing layer encapsulating the conductive electrode and the signal transmission line together with one side of the substrate; A shape discriminating unit 20 that receives the signal sensed by 10 to determine a shape or a moving direction of an object, and a display / control unit 30 which displays or controls the signal determined by the shape discriminating unit 20. It consists of.

More specifically, referring to FIG. 3 for the configuration of the shape detecting unit 10 of the first embodiment, a flat insulating substrate 250 is placed at the bottom of the insulating substrate 250. All materials can be used as long as they have excellent wear resistance and good insulation such as glass, glass or reinforced plastics. In a preferred embodiment of the present invention, a plurality of signal transmission lines 265 are formed to be arranged left and right around the insulating triangular beam member 270. Alternatively, the beam member may be any polygonal beam member suitable for the purpose of the present invention. The conductive electrode 263 is placed on the beam member and bent along the shape of the beam member 265, one end of which is coupled to the signal transmission lines 265 arranged on one side of the beam member, and the other end is arranged on the other side. It is combined with the signal transmission lines. At this time, the coupling may be used a variety of known coupling techniques, such as wire bonding, welding, bonding.

4A to 5, a substrate on which the coupling between the conductive electrode 263 and the signal transmission line 265 is completed as described above is molded. The bent portions of the electrodes are polished into a concave curved shape so that both ends of the conductive electrodes are exposed in pairs oppositely. Both ends of this electrode are insulated by an insulating beam member which is polished at the same time during polishing. In this way, when all the electrodes are exposed, a plurality of rows of electrodes are exposed so that the shape sensing unit is formed as a sensing electrode. The concave curved surface of the sensing unit is polished to improve contact with an object, for example, a finger, thereby making it easy to detect a minute electric signal flowing through the object.

The method for manufacturing the shape discriminating unit 20 includes first preparing an insulating substrate 250 whose main surfaces are parallel to each other, and having one end aligned in a row on the insulating substrate and the other end extending out of the substrate. Forming a column of signal transmission lines 265 made up of a plurality of opposing pairs, mounting an insulating beam member 270 between the opposing pairs of signal transmission line rows, and interposing the beam members 270 therebetween. Coupling electrodes between the signal transmission line 265 of each of the signal transmission line columns across the beam member; the electrode 263, the beam member 270, and the signal transmission line 265 together with the substrate. ) And molding the sealing to a predetermined thickness, and flat polishing the molding layer 273 so that the electrode 263 is exposed. In the above polishing process, the peripheral portion of the electrode may be polished so that the molding layer has a concave curved shape, and the contact sensitivity of the fingers can be made even.

Referring to Fig. 8, the configuration of the shape detecting unit 10 of the second embodiment according to the present invention, a flat insulating substrate 280 is placed at the bottom, and one end is aligned in a row on the insulating substrate 280 And the other ends of the groups arranged so as to extend out of the substrate face each other, the signal transmission line (285) formed of a plurality of opposing pairs are formed, the leading edges (287) of the signal transmission line (285) of the opposite pair The electrode is standing up and coupled. At this time, the electrode has an expanded portion having a substantially disc-shaped cross section at the lower end for easy standing, and any polygonal shape suitable for use may be used. The electrode 283 and the signal transmission line 285 which are erected together with the substrate are molded and sealed to a constant thickness, and the molding layer 293 is subjected to a flat polishing process so that the electrode is exposed. Will be. At this time, in the polishing process, as described above, the peripheral portion of the electrode may be polished to have a concave curved shape.

The electrode having the expanded portion having the expanded portion having the expanded portion having the lower end portion of the disk portion 287 in the form of an expanded portion 287 is expanded in order to erect the electrode 283 on the signal transmission line 285. It is built on the statue. Combination of electrode and transmission line does not interfere with signal transmission between electrode and transmission line such as wire bonding, bonding, welding, plating, electroforming, etc., so long as it does not cause damage such as noise generation and signal leakage It can be combined by all known coupling means.

The method for manufacturing the shape sensing unit 10 of the second embodiment of the present invention comprises the steps of providing an insulating substrate 280 whose main surfaces are parallel to each other, one end aligned in a row on the insulating substrate and the other end out of the substrate Forming a signal transmission line 283 composed of a plurality of opposing pairs arranged to extend, establishing and coupling an electrode to the high end portions of the signal transmission line 285, and the electrode 283 together with the substrate; And molding sealing the signal transmission line 285 to a predetermined thickness, and planar polishing the molding layer 293 to expose the electrode 283. In addition, as described above, the polishing may further include polishing the peripheral portion of the electrode so that the molding layer has a concave curved shape.

The sensing unit 10 may detect an object or a fingerprint by forming cross sections of a plurality of conductive electrodes. Detection of the object to be detected or the shape of the fingerprint is possible by the object in contact with the shape detecting unit 10 in which the plurality of electrode cross-sections are formed by a program embedded in the shape determining unit 20, and the movement direction detection is The direction of movement can be detected by detecting a change in the electrical signal formed by the electrodes. When determining the position of a moving object, the direction of movement can be immediately determined in which direction the object moves in the two-dimensional plane, and it is possible to accurately determine which direction in the 360 degree direction on the plane, as well as the movement speed. You can also detect

The shape determining unit 20 detects a change in an electrical signal applied through the electrode cross section, and then detects the shape of the stationary object, recognizes the shape of the moving object, or recognizes the moving direction of the moving object. The recognition is judged by a built-in program, and a necessary control signal is applied to the display / control unit 30 based on the identified data.

In one embodiment, the electrode cross section of the shape detecting unit 20 as described above is detected by being in direct contact with a weakly flowing electrical signal through a fingerprint, that is, the electrode cross section of the linear electrode is detected in FIG. 6. And a microelectric signal transmitted by the sensor and a signal in a state where the electrode cross section of the linear electrode that is not in direct contact with the fingerprint are not detected from the fingerprint, respectively, to the opposite end of the cross section of the plurality of electrodes, that is, the transmission line The shape determining unit 20 is applied to the shape determining unit 20, and the shape determining unit 20 may recognize and determine a shape of a fingerprint, which is an object detected by the shape detecting unit, by processing the received signals through a program. Corresponding control and data signals are displayed on the display / control unit, in one embodiment, the shape of the fingerprint recognized by the monitoring monitor.

When the fingerprint placed on the electrode cross section of the shape detecting unit 10 is moved, the shape discriminating unit is applied with a weak electric signal through the electrode cross section formed at one end of the plurality of linear electrodes directly contacted with the fingerprint. A weak electrical signal is applied from an electrode cross section by a plurality of linear electrodes which are stopped and not in direct contact with the object.

Accordingly, the shape discriminating unit 20, which receives the change of the minute electric signal due to the movement of the fingerprint through the plurality of electrode cross-sections, has the fingerprint formed by the data processing of the applied signal. From the point where the cross section is located, it is determined that the electrode cross section is moved to the point where the plurality of linear electrodes are located, and by outputting a control signal corresponding to the display / control unit 30 of the mouse or joystick used for multimedia, etc. Function.

The minute electric signals detected from the shape of the object by a plurality of electrode cross-sections formed at one end end surface of the shape detecting unit 10 as described above are connected to the shape discriminating unit 20 through a signal transmission line connected to the electrode end surface. The detected electrical signal is transmitted through the shape.

Therefore, the shape determining unit 20 analyzes and processes the applied signal to recognize and determine the shape of the fingerprint or the object or determine the direction of movement of the object or the fingerprint to provide data and control signals to the display / control unit 30. Will be authorized.

In addition, the conductive electrode cross sections as described above may not only be arranged in a plurality of lines, but may also be arranged in multiple rows by the width of a fingerprint or an object, and the sensing direction of an object may vary depending on the size of the object. Can be arranged.

As described above, the present invention does not merely use the conductive electrode of the substrate as a role of passage of electricity, but also forms a flat surface of one side to detect a minute electric signal flowing through the irregularities of the fingerprint or the object. By using it as the electrode cross section of a sensing apparatus, productivity and mass productivity are good, and a defect rate can be remarkably reduced, and a large quantity of shape sensing apparatus can be supplied at low price.

In addition, by sensing the weak electric signal flowing through the object to process data, and additionally applied electronic circuit and software application technology, it can be widely applied to the application field of similar functions, if used in the security device using a fingerprint, There is no need to carry the key.

Claims (4)

A shape sensing unit having a rod-shaped electrode arranged to be connected to a signal transmission line formed on an insulated substrate having a main surface parallel to each other, and a sealing layer encapsulating the electrode and the signal transmission line together with one side of the substrate; , A shape discriminating unit which receives a signal detected by the shape detecting unit and determines a shape or a moving direction of an object; And a display / control unit for displaying or controlling the signal determined by the shape discriminating unit. The method of claim 1, The electrode is a shape recognition device, characterized in that arranged to face each other by the insulating beam member across the signal transmission line. The method according to claim 1 or 2, One end of the electrode has a shape recognition device characterized in that it has an expansion unit to be fixed on the signal transmission line. The method of claim 3, The electrode is a shape recognition device, characterized in that the cross section of the polygon.