JP2009116516A - Electronic equipment - Google Patents

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Publication number
JP2009116516A
JP2009116516A JP2007287367A JP2007287367A JP2009116516A JP 2009116516 A JP2009116516 A JP 2009116516A JP 2007287367 A JP2007287367 A JP 2007287367A JP 2007287367 A JP2007287367 A JP 2007287367A JP 2009116516 A JP2009116516 A JP 2009116516A
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JP
Japan
Prior art keywords
image input
provided
main body
surface
input sensors
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007287367A
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Japanese (ja)
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JP2009116516A5 (en
Inventor
Minoru Kanbara
Jun Mawatari
実 神原
惇 馬渡
Original Assignee
Casio Comput Co Ltd
カシオ計算機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Casio Comput Co Ltd, カシオ計算機株式会社 filed Critical Casio Comput Co Ltd
Priority to JP2007287367A priority Critical patent/JP2009116516A/en
Publication of JP2009116516A publication Critical patent/JP2009116516A/en
Publication of JP2009116516A5 publication Critical patent/JP2009116516A5/ja
Application status is Pending legal-status Critical

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Abstract

An object of the present invention is to input images of a plurality of subjects such as fingers in a short time.
A portable device includes a main body and a plurality of image input sensors provided on a front surface of the main body. The front surface 3 of the main body 2 is provided with a recess, a ball joint is provided at the bottom of the recess, and the lower surface of the image input sensor 11 is connected to the ball joint.
[Selection] Figure 1

Description

  The present invention relates to an electronic device, and more particularly to an electronic device having an image input function.

  In recent years, the demand for reliability and safety for the management and protection of personal information or security such as crime prevention has increased socially, and personal authentication has been recognized as a very important issue. Yes. In order to meet such a growing social demand, technology for personal authentication using fingerprints has been actively developed, and such personal authentication technology has been applied to portable electronic devices such as mobile phones.

As shown in Patent Document 1, various sensors have been developed in order to capture a fingerprint as an image in a portable electronic device. Optical, electrostatic capacitance, electric field, thermal, pressure, ultrasonic There are other types of sensors. The sensor is provided so as to be exposed on the surface of the portable electronic device, and the fingerprint of the finger touching the contact surface of the sensor is captured as an image by the sensor, and the captured image is collated by the controller of the portable electronic device. The
JP 2007-229164 A

By the way, in order to improve security, it is desired to authenticate fingerprints or finger vein patterns of a plurality of fingers instead of authenticating a fingerprint or finger vein pattern of one finger. In such a case, it is necessary for the user to place a plurality of fingers on one sensor in order to read the fingerprint or finger vein pattern, which is complicated and requires a lot of operation time.
Therefore, an object of the present invention is to enable input of images of a plurality of subjects such as fingers in a short time.

In order to solve the above problems, according to the invention according to claim 1,
The body,
There is provided an electronic apparatus comprising a plurality of image input sensors provided on a surface of a main body corresponding to each subject.

According to a second aspect of the present invention, any one of the plurality of image input sensors is provided on the front surface of the main body, and the other is provided on the rear surface of the main body. Electronic devices are provided.
According to the invention of claim 3, at least one of the plurality of image input sensors is in a floating state, or provided in the main body with one-axis freedom, two-axis freedom, or three-axis freedom. An electronic device according to claim 1 or 2 is provided.

  According to the present invention, since a plurality of image input sensors are provided on the surface of the main body, image input of a plurality of subjects can be performed collectively, and the time required for image input can be shortened.

  Hereinafter, preferred embodiments for carrying out the present invention will be described with reference to the drawings. However, although various technically preferable limitations for implementing the present invention are given to the embodiments described below, the scope of the invention is not limited to the following embodiments and illustrated examples.

  FIG. 1 is a perspective view showing the mobile device 1 together with the user's right hand. The portable device 1 is a notebook personal computer, a mobile phone, a PDA (Personal Digital Assistant), an electronic notebook, a wristwatch, a digital still camera, a digital video camera, a game device, a game machine, or other portable electronic devices.

  As shown in FIG. 1, a plurality of input keys 5 are provided on the front surface 3 of the main body 2 of the mobile device 1. The input key 5 includes a push switch provided on the main body 2 and a key top provided so as to cover the push switch.

  The front surface 3 of the main body 2 is provided with five contact-type image input sensors 11 to 15. The positions of the image input sensors 11 to 15 on the front surface 3 and the distance between them are set so as to match those when the hand is opened lightly. The image input sensors 11 to 15 are sensors whose upper surface is a sensing surface, and the surface form of the subject (for example, a finger or the like) that touches the upper surface (for example, a pattern with unevenness (when the subject is a finger) Or fingerprint))) or an internal form of the subject positioned on the upper surface (for example, a vein pattern inside the finger when the subject is a finger) is input as an image. As the image input sensors 11 to 15, a sensor that senses the surface form or the internal form of the subject by an optical method, a capacitance method, an electric field method, a heat sensitive method, a pressure sensitive method, an ultrasonic method, or other methods can be used. . Since the image input sensors 11 to 15 simultaneously sense or at least partially overlap the sensing time, the work is less complicated and the work time is shortened than reading the fingerprint image or the finger vein pattern image individually with one sensor. be able to.

When the image input sensors 11 to 15 are optical sensors, the image input sensors 11 to 15 can be light transmissive and transparent solid-state imaging devices. A transparent solid-state imaging device will be described as the image input sensors 11 to 15. The solid-state imaging device is a solid-state imaging device having a double-gate transistor, which is a photoelectric conversion device, as a pixel, and a plurality of double-gate transistors are arranged in a matrix on a transparent glass substrate. Here, when the solid-state imaging device is viewed from the sensing surface which is the upper surface, the portion between the double gate transistors is transparent, and light is transmitted through the portion between the double gate transistors. In the double gate transistor, gate electrodes are arranged above and below the semiconductor layer, respectively, and the bottom gate on the lower side is made light-shielding and the top gate on the upper side is made light transmissive so that the opposite side of the sensing surface. Thus, the light incident on the opposite surface does not enter the semiconductor layer of the double gate transistor, and the light incident on the sensing surface enters the semiconductor layer of the double gate transistor. The semiconductor layer of the double gate transistor is a photosensitive portion.
Note that when the image input sensors 11 to 15 are optical fingerprint reading sensors, a light source that emits light emitted to the finger may be disposed in the main body 2. Further, when the image input sensors 11 to 15 are optical vein pattern reading sensors, the vein pattern can be read by a shadow formed by the infrared component of external light such as sunlight passing through the finger. A focus lens may be appropriately provided on the upper surfaces of the image input sensors 11 to 15.

  The image input sensors 11 to 15 are movable and are provided on the front surface 3 of the main body 2. Below, some examples are given about the mounting structure for making the image input sensor 11 movable.

  FIG. 2 is a cross-sectional view showing an example of the mounting structure of the image input sensor 11. As shown in FIG. 2, the front surface 3 of the main body 2 is provided with a recess 31. A ball joint 32 is provided at the bottom of the recess 31, and the ball joint 32 is fixed to the center of the lower surface 31 </ b> A of the image input sensor 11. The ball joint 32 is connected to the image input sensor 11 in a movable joint state, and is provided on the front surface 3 of the main body 2 particularly with three-axis freedom. In a state where the sensing surface that is the upper surface of the image input sensor 11 is parallel to the front surface 3 of the main body 2, the sensing surface is flush with the front surface 3. Instead of the ball joint 32, the lower surface of the image input sensor 11 and the bottom of the recess 31 may be connected by a joint having another three-axis degree of freedom. Further, instead of the ball joint 32, the lower surface of the image input sensor 11 and the bottom of the concave portion 31 may be connected by a joint having a two-axis degree of freedom or a joint having a one-axis degree of freedom. For example, a universal joint may be used instead of the ball joint 32. For this reason, when the finger contacts the image input sensor 11, the image input sensor 11 is appropriately tilted with the ball joint 32 as an axis according to the force applied at that time, and the fingerprint portion always including the feature point of the finger is the image input sensor. Since the finger vein pattern can be kept at the same distance and not tilted with respect to the image input sensor 11, the feature point of the fingerprint cannot be read or the vein pattern is distorted and read. Can be prevented. Although not shown, a resilient spring is provided between the image input sensor 11 and the lower surface 31A of the recess 31 so that the sensing surface of the image input sensor 11 is flush with the front surface 3 after the image is read by the image input sensor 11. You may attach to.

  FIG. 3 is a cross-sectional view showing another example of the mounting structure of the image input sensor 11. As shown in FIG. 3, a recess 31 is formed on the front surface 3 of the main body 2, a plurality of springs 33 are provided on the bottom of the recess 31, and these springs 33 are connected to the lower surface of the image input sensor 11. As a result, the image input sensor 11 is movable and is provided in the front surface 3 of the main body 2 in a floating state. When the spring 33 is in a natural state, the sensing surface that is the upper surface of the image input sensor 11 is flush with the front surface 3 of the main body 2. By providing the spring 33, the fingerprint or finger vein pattern can be read appropriately as described above. In addition to the spring 33 or in place of the spring 33, a cushioning material such as a damper, an insulator, or a rubber insulator may be provided between the lower surface of the image input sensor 11 and the bottom of the recess 31.

  The image input sensors 12 to 15 are also attached to the main body 2 in the same manner as the image input sensor 11. Note that only the image input sensor 11 or the image input sensor 15 at the end of the arranged image input sensors 11 to 15 is provided movably as shown in FIG. 2 or FIG. 3, and the other image input sensors 11 to 14 are provided. Or 12-15 may be fixed. In this case, a sensor having a movable sensing surface among the image input sensors 11 to 15 is configured such that when the finger is opened, the main surface of the fingerprint portion including the feature point is the main surface of the fingerprint portion including the feature point of the other finger. On the other hand, it is suitable to use another sensor with a sensing surface fixed as an index finger, a middle finger, a ring finger, and a little finger for a thumb that tends to tilt. Not limited to this, all the image input sensors are movable, and only the image input sensor corresponding to the thumb is set to have a larger allowable tilt angle of the sensing surface than the image input sensors corresponding to other fingers. Also good.

  Although not shown in FIGS. 2 and 3, when the image input sensors 11 to 15 are transparent solid-state imaging elements such as the double gate transistors described above, a thin display device is provided on the lower surface of the image input sensors 11 to 15. The display screen may come into contact with each other, and each of the image input sensors 11 to 15 may be unitized with the thin display device. The display device can be displayed through the transparent image input sensor. For this reason, since the area occupied by the image input sensors 11 to 15 is eliminated, the size can be reduced. Further, an image input sensor may be provided above the plurality of input keys 5 instead of the thin display device. At this time, since the input key 5 is touched when the biometric authentication image is read, it is necessary to stop the input mode of the input key 5 in order to prevent erroneous input of the input key 5. In the case of such a lamination mechanism, the ball joint 32 and the spring 33 are provided between the back surface of the thin display device and the bottom of the recess 31. As the thin display device, a backlit liquid crystal display or a self-luminous display (for example, an organic EL display, an inorganic EL display, an LED display, or the like) can be used. When image input is not performed by the image input sensors 11 to 15, various displays are performed by the thin display device, and the display contents are displayed on the sensing surfaces of the image input sensors 11 to 15. On the other hand, when fingerprint image input is performed by the image input sensors 11 to 15, light emitted from the thin display device passes through the image input sensors 11 to 15, so that it touches the sensing surface of the image input sensors 11 to 15. A subject is irradiated with light. Further, when the operation guidance or the like is displayed on the thin display device immediately before the image input is performed, the user can visually grasp the operation method, so that the operability is improved and the completeness of the system is increased.

  A controller is built in the main body 2. The controller has a function of performing personal authentication. In other words, the controller compares the storage unit that stores the fingerprint or vein pattern sample image registered in advance with the image captured by the image input sensors 11 to 15 and determines whether the two images match. It functions as a determination means for determining and a processing means for performing processing according to the determination result of the determination means.

  As shown in FIG. 1, when a user places his / her five fingers on the sensing surface of the image input sensors 11 to 15, a fingerprint image or finger vein pattern on the surface of each finger is obtained by the image input sensors 11 to 15. An image is captured. Therefore, image input and personal authentication can be performed collectively for five fingers, and the time required for this can be shortened.

  In addition, since the image input sensors 11 to 15 are provided so as to be movable, even if there is an individual difference in inclination when placing a hand, the inclination of the image input sensors 11 to 15 is adjusted according to the user to be used. Is done. Therefore, the portable device 1 that can be used by everyone can be provided, and the occurrence of personal authentication mistakes can be reduced.

  4 and 5, any one of the image input sensors 11 to 15 (in FIG. 4 and FIG. 5, the image input sensor 11) is provided on the back surface 4 of the main body 2. Also good. By doing so, the user can hold the main body 2 by placing the thumb on the image input sensor 11 and the other fingers on the image input sensors 12 to 15. Even if the user holds the mobile device 1 with one hand, image input and personal authentication can be performed. The number of image input sensors provided on the back surface 4 and the number of image input sensors provided on the surface need not be as shown in FIG.

Even when the image input sensor 11 is provided on the back surface 4 of the main body 2, the mounting structure is as described with reference to FIG. 2 or FIG. 3, and the image input sensors 11 to 15 are movable. Of course, at least one of the image input sensors 11 to 15 may be fixed to the main body 2.
In each of the above embodiments, the number of image input sensors 11 to 15 is set to five in accordance with the number of fingers of one hand.
Further, in each of the above embodiments, only the finger of one hand is read together. However, the present invention is not limited to this, and one or more finger images may be read together from both hands.
In the above embodiments, the image input sensors 11 to 15 are two-dimensional image sensors. However, a two-dimensional image may be obtained by scanning a finger using a one-dimensional line sensor.

FIG. 1 is a perspective view showing an electronic apparatus. FIG. 2 is a cross-sectional view showing the mounting structure of the image input sensor. FIG. 3 is a cross-sectional view showing the mounting structure of the image input sensor. FIG. 4 is a perspective view showing another example of the electronic apparatus. FIG. 5 is a cross-sectional view showing another example of the electronic apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic device 2 Main body 3 Front surface 4 Back surface 11-15 Image input sensor

Claims (3)

  1. The body,
    An electronic apparatus comprising: a plurality of image input sensors provided on a surface of a main body corresponding to each subject.
  2.   2. The electronic apparatus according to claim 1, wherein any one of the plurality of image input sensors is provided on a front surface of the main body, and the other is provided on a rear surface of the main body.
  3.   The at least one of the plurality of image input sensors is in a floating state, or is provided in the main body with one-axis degree of freedom, two-axis degree of freedom, or three-axis degree of freedom. The electronic device according to 1 or 2.
JP2007287367A 2007-11-05 2007-11-05 Electronic equipment Pending JP2009116516A (en)

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JP2009116516A5 JP2009116516A5 (en) 2010-07-08

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014081736A (en) * 2012-10-15 2014-05-08 Kaname Hayashi Finger information reading device
JP2016024580A (en) * 2014-07-18 2016-02-08 富士通株式会社 Information processing apparatus, input control method, and input control program
WO2018150684A1 (en) * 2017-02-17 2018-08-23 ソニー株式会社 Information processing device, information processing system, information processing method, and program

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290780A (en) * 1985-10-16 1987-04-25 Fujitsu Ltd Fingerprint input device
JP2002358512A (en) * 2001-03-06 2002-12-13 Trw Inc Method and system for identity verification using multiple simultaneously scanned biometric images
JP2003242464A (en) * 2002-02-13 2003-08-29 Dainippon Printing Co Ltd Ic card and management device using it
JP2005071216A (en) * 2003-08-27 2005-03-17 Matsushita Electric Ind Co Ltd Image input device
JP2006280835A (en) * 2005-04-05 2006-10-19 Aruze Corp Personal authentication apparatus and game machine with personal authentication apparatus
JP2006338122A (en) * 2005-05-31 2006-12-14 Olympus Imaging Corp Portable terminal device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6290780A (en) * 1985-10-16 1987-04-25 Fujitsu Ltd Fingerprint input device
JP2002358512A (en) * 2001-03-06 2002-12-13 Trw Inc Method and system for identity verification using multiple simultaneously scanned biometric images
JP2003242464A (en) * 2002-02-13 2003-08-29 Dainippon Printing Co Ltd Ic card and management device using it
JP2005071216A (en) * 2003-08-27 2005-03-17 Matsushita Electric Ind Co Ltd Image input device
JP2006280835A (en) * 2005-04-05 2006-10-19 Aruze Corp Personal authentication apparatus and game machine with personal authentication apparatus
JP2006338122A (en) * 2005-05-31 2006-12-14 Olympus Imaging Corp Portable terminal device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014081736A (en) * 2012-10-15 2014-05-08 Kaname Hayashi Finger information reading device
JP2016024580A (en) * 2014-07-18 2016-02-08 富士通株式会社 Information processing apparatus, input control method, and input control program
WO2018150684A1 (en) * 2017-02-17 2018-08-23 ソニー株式会社 Information processing device, information processing system, information processing method, and program

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