USOO696366OB1
`
`(12) United States Patent
`Tsukamura et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 6,963,660 B1
`Nov. 8, 2005
`
`(54) FINGERPRINT COLLATING DEVICE AND
`FINGERPRINT COLLATING METHOD
`(75) Inventors: Yoshihiro Tsukamura, Kanagawa (JP);
`Takeshi Funahashi, Saitama (JP)
`(73) Assignee: Sony Corporation, (JP)
`(*) Notice:
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 700 days.
`(21) Appl. No.: 09/639,171
`(22) Filed:
`Aug. 16, 2000
`(30)
`Foreign Application Priority Data
`Aug. 18, 1999 (JP)
`............................... P11-231683
`(51) Int. Cl. ............................. G06K 9/00; G06F 7/04
`(52) U.S. Cl. ..................... 382/124; 382/127; 340/5.53;
`340/5.83; 348/161
`(58) Field of Search ........................ 382/115, 116, 117,
`382/118, 119, 120, 121, 122, 123, 124, 125;
`340/5.53, 5.83; 348/161
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`3,533,823 A * 10/1970 Newkirk et al. ............... 427/1
`3,619,060 A * 11/1971 Johnson ....................... 356/71
`4,650,978 A * 3/1987 Hudson et al. ............. 235/380
`5,180,901. A
`1/1993 Hiramatsu .................. 235/380
`5,493,621. A
`2/1996 Matsumura ................. 382/125
`5,618,232 A * 4/1997 Martin ........................ 463/25
`
`9/1997 Hirakawa et al. ........... 345/751
`5,664,126 A
`5,719,950 A * 2/1998 Osten et al. ................ 382/115
`5,903.225 A * 5/1999 Schmitt et al. ............ 340/5.25
`2. R. 3. E. cket al... 3.
`ergeneK el al. . . . . . . . . . . . . .
`24 - -a-
`6,400,836 B2 * 6/2002 Senior ..............
`... 382/124
`6,438.257 B1 * 8/2002 Morimura et al. .......... 382/124
`6,490,366 B1* 12/2002 Haneda et al. ........
`... 382/126
`6647.133 B1
`11/2003 Morita et al. ............... 38.2/124
`Y/
`f
`Ola et a
`f
`FOREIGN PATENT DOCUMENTS
`JP
`2000-067236
`3/2000
`JP
`2001056858 A * 2/2001
`f
`* cited by examiner
`Primary Examiner Jingge Wu
`Assistant Examiner-Ryan J. Hesseltine
`(74) Attorney, Agent, or Firm-Rader, Fishman & Grauer
`PLLC; Ronald P. Kananen
`(57)
`ABSTRACT
`
`............ GO6T 7/OO
`f
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`A fingerprint collating device and a fingerprint collating
`method which can prevent an illicit use of fingerprint. The
`fingerprint collating device includes fingerprint reader for
`reading a user's fingerprint to create read fingerprint infor
`mation, and to create read history information indicating that
`the read fingerprint information has been created, read
`history Storage for storing the read history information, and
`collator for collating the read fingerprint information with
`the registered fingerprint information to effect personal
`authentication and output a result of authentication when the
`read history information is Stored in the read history Storage.
`
`19 Claims, 3 Drawing Sheets
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`50 PRISM
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`5 LENS BARREL
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`40 C C D
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`37
`ANALOG/DIGITAL
`CONVERTER
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`L2
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`Temp, Attb
`35
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`D37
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`34
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`COLLATION
`CONTROLLER
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`COLLATION
`FLASH ROM
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`D37
`36
`COLLATION
`RAM
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`Reg, Ref, Nindex
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`38
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`31
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`32
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`RS-232C
`DRVER
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`(TO PERSONAL
`COMPUTER)
`
`PROGRAM
`RAM
`
`PROGRAM
`FLASH ROM
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`39
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`33
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`U.S. Patent
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`Nov. 8, 2005
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`Sheet 1 of 3
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`US 6,963,660 B1
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`
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`FIG. 1
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`U.S. Patent
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`Nov. 8, 2005
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`Sheet 3 of 3
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`US 6,963,660 B1
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`INDEX EO
`(512Byte)
`INDEX 1
`(512Byte)
`INDEX 2
`(512Byte)
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`FINGERPRINT - Temp
`TEMPLATE
`(256Byte)
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`Attb
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`ATRIBUTE
`(256Byte)
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`NDEX 1415
`(512Byte)
`NDEX 1416
`(512Byte)
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`F.G. 3
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`1
`FINGERPRINT COLLATING DEVICE AND
`FINGERPRINT COLLATING METHOD
`
`US 6,963,660 B1
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`2
`BRIEF DESCRIPTION OF THE DRAWINGS
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`5
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`In the accompanying drawings:
`FIG. 1 is a block diagram Showing the configuration of a
`fingerprint collation System according to the present inven
`tion;
`FIG. 2 is a block diagram Showing the configuration of a
`fingerprint collating unit; and
`FIG. 3 is a diagram showing a stored State of fingerprint
`data.
`
`BACKGROUND OF THE INVENTION
`
`1. Field of the Invention
`The present invention relates to a fingerprint collating
`device and a fingerprint collating method, and more particu
`larly, is Suitably applied to a fingerprint collating device to
`effect personal authentication by using the fingerprint, for
`example.
`2. Description of the Related Art
`Conventionally, there is a fingerprint collating unit for
`effecting personal authentication by using the fingerprint.
`Such fingerprint collating unit uses an image pick-up ele
`ment to photograph a user's fingerprint, and produce a
`fingerprint image. And the fingerprint collating unit collates
`the photographed fingerprint image with the registered fin
`gerprint image for collation to effect personal authentication.
`The fingerprint is unchanged throughout one’s life and
`different from person to perSon. Therefore, the fingerprint
`can Securely assure the personal authentication.
`However, the third party may pick up the other's finger
`print from a cup or the like, for example, to falsify a
`fingerprint image, and enter the falsified fingerprint image
`into the fingerprint collating unit for the fingerprint colla
`tion. The third party may abuse the falsified fingerprint for
`personal authentication.
`
`SUMMARY OF THE INVENTION
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`In View of the foregoing, an object of this invention is to
`provide a fingerprint collating device and a fingerprint
`collating method which can prevent an illicit use of the
`other's fingerprint.
`The foregoing object and other objects of the invention
`have been achieved by the provision of a fingerprint collat
`ing device for collating a user's fingerprint the registered
`fingerprint information to effect personal authentication,
`comprising fingerprint reader for reading the user's finger
`print to create read fingerprint information, and to create
`read history information indicating that the read fingerprint
`information has been created, read history Storage for Storing
`the read history information, and collator for collating the
`read fingerprint information with the registered fingerprint
`information to effect personal authentication and output a
`result of authentication when the read history information is
`Stored in the read history Storage.
`The read history information indicating that the read
`fingerprint information has been created is Stored in the read
`history Storage, and the read fingerprint information is
`collated with the registered fingerprint information to effect
`personal authentication when the read history information is
`Stored in the read history Storage. Therefore, even if the read
`fingerprint information is improperly entered from the out
`Side, the personal authentication is not effected, leading to
`prevention of an illicit use.
`The nature, principle and utility of the invention will
`become more apparent from the following detailed descrip
`tion when read in conjunction with the accompanying draw
`ings in which like parts are designated by like reference
`numerals or characters.
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`DETAILED DESCRIPTION OF THE
`EMBODIMENT
`
`Preferred embodiments of this invention will be described
`with reference to the accompanying drawings:
`(1) Overall Configuration of a Fingerprint Collation System
`In FIG. 1, reference numeral 1 denotes a fingerprint
`collation System of the invention as a whole, in which a card
`reader 20 for reading or writing data from or to an Integrated
`Circuit (IC) card 21 and a fingerprint collating unit 30 as a
`fingerprint collating device are connected to a personal
`computer 10. The personal computer 10 is connected to the
`card reader 20, as well as the fingerprint collating unit 30,
`via an RS-232C serial interface.
`The fingerprint collating unit 30 accepts a user's finger
`print, and collates the fingerprint with either a fingerprint
`template (reference fingerprint data for the person for
`authentication) registered in the fingerprint collating unit 30
`or a fingerprint template registered in the IC card 21, a result
`of fingerprint collation being output to the personal com
`puter 10.
`The fingerprint collating unit 30 has a plurality of finger
`print templates registered, each fingerprint template being
`identified by an index number N index. Also, the IC card 21
`has a fingerprint template of an owner of the IC card 21
`registered.
`(2) Fingerprint Registration Process
`When the fingerprint of a person for authentication is
`registered in the fingerprint collating unit 30, the personal
`computer 10 Sends a fingerprint registration instruction Reg
`and an index number N index specified by the user to the
`fingerprint collating unit 30 in response to the fingerprint
`registration operation of the user.
`FIG. 2 is a diagram of the fingerprint collating unit 30 as
`a whole. A CPU 31, a program Random Access Memory
`(RAM) 32, a program flash Read Only Memory (ROM) 33,
`and a collation controller 34 are connected to a main bus 39.
`The CPU 31 reads a control program from the program flash
`ROM 33 and executes the control program in the program
`RAM32 to control the whole of the fingerprint collating unit
`30.
`That is, the CPU 31 receives the fingerprint registration
`instruction Reg and the index number N index sent from the
`personal computer 10 via a RS232C driver 38. And the CPU
`31 controls the collation controller 34 in accordance with the
`fingerprint registration instruction Reg to start reading the
`fingerprint.
`The collation controller 34 turns on an LED 41 under the
`control of the CPU 31 to apply an illuminating light L1 onto
`the bottom face of a prism 50. Then, the user puts one's
`finger with fingerprint face to be registered on the Slant of
`the prism 50 firmly.
`The prism 50 reflects the illuminating light L1 on the
`interior of the Slant of prism to cause a reflected light L2 to
`be outgoing via a lens (not shown) provided within a lens
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`US 6,963,660 B1
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`barrel 51 to a Charge Coupled Device (CCD) 40. The prism
`50 reflects totally the illuminating light L1, when there is an
`air layer on the Outer face of the Slant, while diffusing the
`illuminating light L1, when there is no air layer on the outer
`face of the Slant. Therefore, when the user puts one's finger
`with fingerprint face firmly on the slant of the prism 50, the
`illuminating light L1 is reflected at a concave portion of the
`fingerprint due to the presence of air layer, while being
`diffused at a convex portion of the fingerprint due to the
`absence of air layer. Consequently, the reflected light L2
`results in an image which is bright in the concave portion of
`fingerprint and dark in the convex portion offingerprint. The
`CCD 40 produces an image signal S40 by picking up the
`reflected light L2, and outputs the image Signal S40 to an
`analog/digital converter 37. In this way, the fingerprint is
`optically read.
`The analog/digital converter 37 converts the image Signal
`S40 into a digital signal, which is binarized and output as the
`fingerprint image data D37 to the collation controller 34. At
`this time, the collation controller 34 displays the fingerprint
`image data D37 via the RS232C driver 38 on a monitor 11
`of the personal computer 10 (FIG. 1). Thereby, the user
`confirms one's own fingerprint photographed to adjust the
`disposition of the finger with respect to the prism 50.
`The collation controller 34 extracts the feature points of
`fingerprint (central or branch point of fingerprint pattern)
`from the fingerprint image data D37 to produce a fingerprint
`template Temp. And the collation controller 34 registers the
`fingerprint template Temp and an attribute Attb associated
`with the fingerprint template Temp at an index (address)
`specified by the index number N index within the collation
`flash ROM 35, as shown in FIG. 3, and notifies the personal
`computer 10 that the registration of fingerprint has been
`completed (FIG. 1).
`(3) Fingerprint Collation Process
`(3-1) Fingerprint Collation Process with Fingerprint Tem
`plate within Fingerprint Collating Unit
`When the fingerprint collation is performed by using a
`fingerprint template Temp registered within the fingerprint
`collating unit 30, the user uses the personal computer 10 to
`Start a fingerprint collation proceSS and input an indeX
`number N index. The personal computer 10 sends a finger
`print collation instruction Ref and the index number Nindex
`specified by the user to the fingerprint collating unit 30 in
`response to this.
`In FIG. 2, the CPU 31 receives the fingerprint collation
`instruction Ref and the index number N index sent from the
`personal computer 10 via the RS232C driver 38, controls the
`collation controller 34 in accordance with the fingerprint
`collation instruction Ref to Start reading the fingerprint.
`The collation controller 34 turns on the LED 41 under the
`control of the CPU 31, like when registering the fingerprint,
`and applies an illuminating light L1 on the bottom face of
`the prism 50. At this time, the user puts one's finger with
`fingerprint face on the slant of the prism 50 firmly.
`The prism 50 reflects the illuminating light L1 at the
`interior of the Slant of prism, and causes the reflected light
`L2 representing the user's fingerprint image to be outgoing
`via a lens (not shown) provided within the lens barrel 51 to
`the CCD 40 which is fingerprint reading means. The CCD 40
`picks up the reflected light L2 to produce an image Signal
`S40 for output to the analog/digital converter 37. The
`analog/digital converter 37 converts the image Signal S40
`into a digital Signal, which is binarized and output as the
`fingerprint image data D37 to the collation controller 34.
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`Here, when the fingerprint image data D37 is normally
`produced, the collation controller 34 which is fingerprint
`reading means Sets a fingerprint accepting flag as reading
`history information indicating that the fingerprint has been
`read in the program RAM 32 which is reading history
`Storing means.
`And the collation controller 34 as collating means reads
`the fingerprint template Temp Specified by the index number
`N index from the collation flash ROM 35 and collates the
`fingerprint image data D37 with the read fingerprint tem
`plate Temp.
`At this time, the collation controller 34 executes the
`collation between the fingerprint template Temp and the
`fingerprint image data D37, only when the fingerprint
`accepting flag has been Set in the program RAM32, but does
`not execute the collation when the fingerprint accepting flag
`has not been set in the program RAM 32. Namely, the
`fingerprint collating unit 30 performs the collation of fin
`gerprint only with the fingerprint image data D37 read by the
`fingerprint collating unit 30, but does not perform the
`collation of fingerprint even if the fingerprint image data
`D37 is input externally. Thereby, it is possible to prevent an
`illicit use of fingerprint, using the falsified fingerprint image
`data.
`After the collation between the fingerprint template Temp
`and the fingerprint image data D37 has been completed, the
`collation controller 34 resets the fingerprint accepting flag in
`the program RAM32, and outputs a result of collation to the
`personal computer 10 (FIG. 1).
`(3-2) Fingerprint Collation Process with Fingerprint Tem
`plate within IC Card
`When the collation of fingerprint is made using the
`fingerprint template Temp registered within the IC card 21,
`the user inserts the IC card 21 into the card reader 20, and
`uses the personal computer 10 to Start the fingerprint colla
`tion operation. The personal computer 10 Sends a fingerprint
`collation instruction Ref to the fingerprint collating unit 30
`in response to this.
`The CPU 31 (FIG. 2) controls the collation controller 34
`in accordance with the fingerprint collation instruction Ref
`to Start reading the fingerprint. The collation controller 34
`reads a user's fingerprint to produce the fingerprint image
`data D37 and store it in the collation RAM 36 under the
`control of the CPU 31, like when registering the fingerprint.
`Herein, when the fingerprint image data D37 can be nor
`mally produced, the collation controller 34 sets the finger
`print accepting flag indicating that the fingerprint has been
`read in the program RAM. 32.
`The collation controller 34 reads the fingerprint template
`Temp registered within the IC card 21 via the personal
`computer 10, and Stores the fingerprint template Temp at an
`index #0 in the collation flash ROM 35. And the collation
`controller 34 reads the fingerprint template Temp from the
`index #0 in the collation flash ROM 35, and performs the
`collation between the fingerprint template Temp and the
`fingerprint image data D37.
`At this time, the collation controller 34 executes the
`collation between the fingerprint template Temp and the
`fingerprint image data D37, only when the fingerprint
`accepting flag has been Set in the program RAM32, but does
`not execute the collation when the fingerprint accepting flag
`has not been set in the program RAM 32.
`After the collation between the fingerprint template Temp
`and the fingerprint image data D37 has been completed, the
`collation controller 34 resets the fingerprint accepting flag in
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`the program RAM32, and outputs a result of collation to the
`personal computer 10 (FIG. 1).
`(4) Operation and Effect
`In the above configuration, the fingerprint collating unit
`30 accepts a user's fingerprint to produce the fingerprint
`image data D37. At this time, when the fingerprint image
`data D37 is normally produced, the collation controller 34
`Sets the fingerprint accepting flag in the program RAM 32.
`And the collation controller 34 performs the collation
`between the fingerprint template Temp within the fingerprint
`collating unit 30 or the IC card 21 and the fingerprint image
`data D37, only when the fingerprint accepting flag has been
`set in the program RAM. 32.
`With the above configuration, the fingerprint accepting
`flag is Set when the user's fingerprint is accepted to produce
`the fingerprint image data D37. Only when the fingerprint
`accepting flag has been Set, the collation of fingerprint is
`performed. Therefore, even if the fingerprint image data D37
`is entered externally into the fingerprint collating unit 30, the
`collation of fingerprint is not performed. Consequently, it is
`possible to prevent an illicit use of fingerprint, using the
`falsified fingerprint image data.
`AS described above, according to the present invention,
`the read history information representing that the read
`fingerprint information has been produced is Stored in the
`read history Storing means. When the read history informa
`tion is Stored in the read history Storing means, the collation
`between the read fingerprint information and the registered
`fingerprint information is performed to effect personal
`authentication. Even if the read fingerprint information is
`entered externally and illicitly, the personal authentication is
`not performed. Consequently, it is possible to provide the
`fingerprint collating device which can prevent an illicit use
`of fingerprint.
`While there has been described in connection with the
`preferred embodiments of the invention, it will be obvious
`to those skilled in the art that various changes and modifi
`cations may be aimed, therefore, to cover in the appended
`claims all Such changes and modifications as fall within the
`true Spirit and Scope of the invention.
`What is claimed is:
`1. A fingerprint collating device for collating a user's
`fingerprint with registered fingerprint information to effect
`personal authentication, Said device comprising:
`an external computer;
`a prism for reading Said fingerprint to create read finger
`print information, and to create read history informa
`tion indicating that Said read fingerprint information
`has been created;
`a read history Storage for Storing Said read history infor
`mation and executing a control program when
`instructed by the external computer;
`a controller for Setting a fingerprint accepting flag asso
`ciated with Said read fingerprint information indicating
`that read fingerprint information is normally produced
`through Said prism; and
`a collator collating Said read fingerprint information with
`Said registered fingerprint information to effect per
`Sonal authentication and output a result of authentica
`tion when Said fingerprint accepting flag is Set, Said
`read history information is Stored in Said read history
`Storage, and the control program is executed.
`2. The fingerprint collating device according to claim 1,
`wherein Said collator effects Said personal authentication
`by using Said registered fingerprint information Sup
`plied from an external Storage medium, wherein Said
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`US 6,963,660 B1
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`registered finger print information includes a finger
`print template that corresponds to an owner of the
`external Storage medium.
`3. A fingerprint collating method for collating a user's
`fingerprint with registered fingerprint information to effect
`personal authentication, Said method comprising the Steps
`of:
`reading Said fingerprint through a prism to create read
`fingerprint information, and to create read history infor
`mation indicating that Said read fingerprint information
`has been created;
`Storing Said read history information in read history
`Storing means;
`Setting a fingerprint accepting flag associated with Said
`read fingerprint information indicating that read finger
`print information is normally produced through the
`prism; and
`executing a control program in Said read history Storage
`means when an instruction Signal is received from an
`external computer; and
`collating Said read fingerprint information with Said reg
`istered fingerprint information to effect personal
`authentication and output a result of authentication
`when said fingerprint accepting flag is Set, Said read
`history information is Stored in Said read history Storing
`means, and Said read history Storage means executes
`the control program.
`4. A fingerprint collating System comprising:
`means for generating a collation instruction and an indeX
`number;
`means for illuminating a bottom face of a prism based on
`the collation instruction;
`means for generating a fingerprint image of a user when
`an air layer exists between a finger of a user and a top
`face of the prism;
`means for Setting a fingerprint accepting flag in a first
`memory unit when a fingerprint image of the user is
`normally produced through the prism;
`means for reading a fingerprint template associated with
`the index number from a Second memory unit; and
`means for collating the fingerprint image and the finger
`print template when the fingerprint image of the user is
`generated and the fingerprint accepting flag is Set.
`5. The system of claim 4, further comprising:
`means for converting the fingerprint image to a digital
`Signal.
`6. The System of claim 4, further comprising:
`means for resetting the fingerprint accepting flag when the
`collation between the fingerprint image and the finger
`print template has been completed.
`7. The system of claim 4, further comprising:
`means for outputting a result of the collation to a personal
`computer.
`8. The system of claim 4, wherein the second memory unit
`is an IC card.
`9. A method for collating a fingerprint in a fingerprint
`collating System that includes a personal computer and a
`collating unit, the method comprising:
`generating a collation instruction and an index number;
`illuminating a bottom face of a prism based on the
`collation instruction;
`generating a fingerprint image of a user when an air layer
`exists between a finger of a user and a top face of the
`prism;
`Setting a fingerprint accepting flag in a first memory unit
`when a fingerprint image is normally produced through
`the prism;
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`ASSA ABLOY Ex. 1005 - Page 7
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`reading a fingerprint template associated with the indeX
`number from a Second memory unit; and
`collating the fingerprint image and the fingerprint tem
`plate when the fingerprint image of the user is gener
`ated and the fingerprint accepting flag is Set.
`10. The method of claim 9, further comprising:
`converting the fingerprint image to a digital Signal.
`11. The method of claim 9, further comprising:
`resetting the fingerprint accepting flag when the collation
`between the fingerprint image and the fingerprint tem
`plate is complete.
`12. The method of claim 9, further comprising:
`outputting a result of the collation to the computer.
`13. A System for collating a fingerprint of a user, com
`prising:
`15
`a computer that generates a fingerprint collation instruc
`tion and an index number, wherein the computer has a
`first memory unit;
`a prism that generates a fingerprint image of a user when
`the collation instruction is received from the computer
`and an air layer exists between a portion a finger of the
`user and a top face of the prism; and
`a collating unit that retrieves a fingerprint template of the
`user from a Second memory unit based on the indeX
`number and collates the fingerprint image of the user
`with the fingerprint template when a fingerprint accept
`ing flag is Set in the Second memory unit, wherein the
`fingerprint accepting flag is Set when a fingerprint
`image is normally produced through the prism.
`14. The system of claim 13, wherein the fingerprint
`accepting flag is Set when the fingerprint image is generated.
`15. The system of claim 13, wherein the fingerprint
`accepting flag is reset when the collation of the fingerprint
`image and the fingerprint template is complete.
`16. The system of claim 13, wherein the collating unit
`Sends the collation result to the computer.
`17. The system of claim 13, wherein the second memory
`unit is an IC card.
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`18. A fingerprint collating device for collating a user's
`fingerprint with registered fingerprint information to effect
`personal authentication, Said device comprising:
`an external computer;
`a prism for reading Said fingerprint to create read finger
`print information, and to create a fingerprint accepting
`flag indicating that Said read fingerprint information has
`been created;
`a first memory unit for Storing Said fingerprint accepting
`flag and executing a control program when receiving a
`collating instruction and an index number of the user
`from Said external computer;
`a Second memory unit for registering a plurality of
`fingerprint templates corresponding to each received
`index number of Said registered fingerprint informa
`tion;
`a controller for Setting a fingerprint accepting flag asso
`ciated with Said read fingerprint information indicating
`that read fingerprint information is normally produced
`through Said prism; and
`a collator for collating Said read fingerprint information
`with one of Said plurality of fingerprint templates
`corresponding to Said received index number to effect
`personal authentication when Said fingerprint accepting
`flag is Set, and outputting a result of the authentication
`to Said external computer,
`wherein Said fingerprint accepting flag is reset when Said
`collating is complete.
`19. The fingerprint collating device according to claim 18,
`wherein Said collator effects Said personal authentication
`by using Said registered fingerprint information Sup
`plied from an external Storage medium, wherein Said
`registered finger print information includes a finger
`print template that corresponds to an owner of the
`external Storage medium.
`
`US 6,963,660 B1
`
`25
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`35
`
`ASSA ABLOY Ex. 1005 - Page 8
`ASSA ABLOY AB v. CPC Patent Technologies Pty Ltd.
`IPR2022-01093 - U.S. Patent No. 8,620,039
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