throbber
(19) United States
`(12) Patent Application Publication (10) Pub. No.: US 2001/0036297 A1
`Ikegami et al.
`(43) Pub. Date:
`Nov. 1, 2001
`
`US 20010036297A1
`
`(54) PERSONAL AUTHENTICATION SYSTEM
`AND METHOD USING BIOMETRICS
`INFORMATION, AND REGISTERING
`APPARATUS, AUTHENTICATING
`APPARATUS AND PATTERN INFORMATION
`INPUT MEDIUM FOR THE SYSTEM
`(76) Inventors: Jun Ikegami, Kawasaki (JP), Takashi
`Shinzaki, Kawasaki (JP); Yusaku Fujii,
`Kawasaki (JP)
`
`Correspondence Address:
`STAAS & HALSEY LLP
`700 11TH STREET, NW
`SUTE 500
`WASHINGTON, DC 20001 (US)
`(21) Appl. No.:
`09/791,790
`(22) Filed:
`Feb. 26, 2001
`(30)
`Foreign Application Priority Data
`
`Apr. 27, 2000 (JP)...................................... 2000-127960
`
`Publication Classification
`
`(51) Int. Cl." ............................. G06K 9/00; H04O 1/00;
`H04B 1/00; H04B 3/00
`(52) U.S. Cl. ........................................... 382/115; 340/5.52
`(57)
`ABSTRACT
`A System performing Secondary verification using only
`existing apparatuses to accomplish a measure for relief in
`personal authentication without causing complexity or with
`out increasing cost. The System has a registering apparatus
`for obtaining data for Verification from information inputted
`using an inputting unit and registering the data. The regis
`tering apparatus has a first extracting unit for extracting
`biometricS characteristic data from the biometrics informa
`tion obtained by the inputting unit, and registering the
`biometricS characteristic data as registry biometricS charac
`teristic data for primary verification, and a Second extracting
`unit for extracting data, which is different from the registry
`biometricS characteristic data, from information inputted
`using the inputting unit and registering the data as registry
`data for Secondary verification. The System is used for
`personal authentication using biometrics information Such
`as fingerprint, palm print, finger shape, palm Shape, Voice,
`retina, iris, face image, dynamic Signature, blood vessel
`pattern, keystroke, or the like.
`
`STAR
`
`INPUT BOMETRICS CHARACTERISC
`DATA FOR PRIMARY VERIFICATION
`
`S.
`
`5
`
`WERFY BOMETRICS CHARACTERISTC
`DATA FOR PRIMARY VERIFICATION by
`REGSERED BOMETRICS
`CHARACTERSTC DAA
`
`DATA STORAGE
`UNIT FOR
`RMARY
`WERFICAON
`
`RATE OF MATCHING > n ? )YES
`NO
`S3
`
`NO RATE OF MATCHING 2 s
`YES
`
`DOES SHIFT TO SeconARY
`wer FICATION ?
`YES
`
`MPUT DATA FOR SeCONDARY
`werficATION
`
`WERFY DATA FOR SECONDARY
`VERIFICATION BY
`REGISTERED AA
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`S4
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`S5
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`S16
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`S17
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`6
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`DATA SORAGE
`UN FOR
`SECONDARY
`WERFICATION
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`RATE OF MATCHING > m?
`YES
`
`S18
`
`NOT
`AUTHENCATE
`
`At them CAT
`
`S19
`
`END
`
`Page 1 of 64
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`GOOGLE EXHIBIT 1017
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`

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`Patent Application Publication
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`Nov. 1, 2001 Sheet 1 of 27
`FG.
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`US 2001/0036297 A1
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`3 (3A^3G)
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`AUTHENTICATING
`APPARATUS
`
`AUTHENTICATING
`APPARATUS
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`3 (3AM3G)
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`5 (5A)
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`6 (6A ~ 6G)
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`Page 2 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 2 of 27
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`US 2001/0036297 A1
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`CN--
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 3 of 27
`FG. 3
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`US 2001/0036297 A1
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`5 (5A)
`
`S
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`DATA STORAGE
`UNT FOR
`PRIMARY
`VERIFICATION
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`S2
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`S3
`
`S4
`
`INPUT REGISTRY BIOMETRICS CHARACTERISTIC
`DATA FOR PRIMARY VERIFICATION
`
`INPUT BIOMETRICS CHARACTERISTIC DATA
`FOR TEST VERIFICATION
`
`VERIFY BOMETRICS CHARACTERISTC DATA
`FOR PRIMARY VERIFICATION BY BOMETRICS
`CHARACTERISTIC DATA FOR TEST
`VERIFICATION
`
`6 (6 AM 6G)
`
`RATE OF MATCHING 2 p 2
`
`YES
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
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`S5
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`NPUT DATA FOR SECONDARY
`VERIFICATION
`
`END
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`Page 4 of 64
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`US 2001/0036297 A1
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`N)
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`O
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`Page 5 of 64
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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 5 of 27
`F.G. 5
`
`US 2001/0036297 A1
`
`NPUT BOMETRICS CHARACTERISTIC
`DATA FOR PRIMARY VERIFICATION
`
`S 1
`
`5
`
`$12 O
`
`DATA STORAGE
`UNIT FOR
`PRIMARY
`VERIFICATION
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
`
`VERIFY BOMETRICS CHARACTERISTIC
`DATA FOR PRIMARY VERIFICATION BY
`REGISTERED BOMETRICS
`CHARACTERISTC DATA
`
`RATE OF MATCHING 2 n 2
`NO
`
`YES
`
`NO RATE OF MATCHING 2 s 2
`YES
`
`DOES SHIFT TO SECONDARY
`VERIFICATION ?
`YES
`
`INPUT DATA FOR SECONDARY
`VERIFICATION
`
`VERIFY DATA FOR SECONDARY
`VERIFICATION BY
`REGISTERED DATA
`
`
`
`
`
`RATE OF MATCHING 2 m ?
`YES
`
`
`
`
`
`
`
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`
`
`NOT
`AUTHENTCATE
`
`AUTHENTCATE
`
`S19
`
`END
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`Page 6 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 6 of 27
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`US 2001/0036297 A1
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`SO I?? „LE WOIE
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`LINTI
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`Page 7 of 64
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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 7 of 27
`FG.7
`
`US 2001/0036297 A1
`
`INPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`-
`
`S21
`S22
`
`VERIFY FINGERPRINT DATA OF THE
`FIRST FINGER BY REGISTERED DATA
`
`RATE OF MATCHING > n ?
`
`YES
`
`DATA STORAGE
`UNIT FOR
`PRIMARY
`VERIFICATION
`
`NOK RATE OF MATCHING > s?
`
`. S SHIFT TO SECONDARY
`VERIFICATION ALLOWED 2
`
`NPUT FINGERPRINT DATA
`OF THE i-TH FNGER
`
`
`
`VERIFY FINGERPRINT DATA OF THE
`i-TH FINGER BY REGISTERED DATA
`
`RATE OF MATCHING > m ?
`YES
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
`
`
`
`
`
`
`
`
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`NOT
`AUTHENTCATE
`
`AUTHENTICATE
`
`END
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`Page 8 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 8 of 27
`FIG. 8
`
`US 2001/0036297 A1
`
`NFPUT FINGERPRNT DATA
`OF THE i-TH FINGER
`
`
`
`
`
`VERIFY FINGERPRINT DATA OF THE
`i-TH FINGER BY REGISTERED DATA
`
`RATE OF MATCHING 2 m ?
`YES
`
`
`
`
`
`
`
`
`
`5A (6A)
`
`DATA SORAGE
`UNIT FOR
`PRIMARY
`VERIFICATION
`
`
`
`
`
`NOT
`AUTHENTCATE
`
`AUTHENCATE
`
`Page 9 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 9 of 27
`
`US 2001/0036297 A1
`
`8.12
`
`- - - - - - - -
`
`89
`
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`
`
`
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`
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`LINT) ØNIJLOV? J.LXB V LVCI
`
`NAJB. L.LV/c}
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`Page 10 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 10 of 27 US 2001/0036297 A1
`FIG. O
`
`START
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`
`
`
`
`VERIFY FINGERPRINT DATA OF THE
`FIRST FINGER BY REGISTERED DATA
`
`
`
`
`
`5A
`
`DATA STORAGE
`UNIT FOR
`PRIMARY
`VERIFICATION
`
`RATE OF MATCHING 2 m
`NO
`
`RATE OF MATCHING 2 s ?
`YES
`
`N
`
`NPUT FINGERPRINT PATTERN
`DATA OF THE i-TH FINGER
`
`VERIFY FINGERPRINT DATA
`OF THE i-TH FINGER BY
`REGISTERED PATTERN DATA
`
`
`
`
`
`DO PATTERNS MATCH 2
`YES
`
`S46
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`
`
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`NOT
`AUTHENTCATE
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`
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`AUTHENTCATE
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
`
`Page 11 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001
`
`Sheet 11 Of 27
`
`US 2001/0036297 A1
`
`
`
`
`
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`
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`c-JOOT LEXHOOG
`
`
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`Ti\7}}_LNEO L-WETT
`
`
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`c-JOOT] IL-JET
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`Page 12 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 12 of 27
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`US 2001/0036297 A1
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`02 Z
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`O9
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`DOZ
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`SO [8] LEWO|8
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`Page 13 of 64
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`

`

`Patent Application Publication
`
`Nov. 1, 2001 Sheet 13 of 27 US 2001/0036297 A1
`F.G. 13
`
`
`
`5A
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`VERIFY FINGERPRINT DATA OF THE
`FRST FINGER BY REGISTERED DATA
`
`
`
`
`
`
`
`DATA SORAGE
`UNT FOR
`PRIMARY
`VERIFICATION
`
`
`
`
`
`
`
`
`RATE OF MATCHING > n ?
`NO
`
`RATE OF MATCHING 2 s?
`YES
`
`
`
`NPUT SIGNAL BY TAPPNG
`
`VERIFY SIGNAL BY REGISTERED
`SIGNAL DATA
`
`
`
`
`
`
`
`DO SIGNALS MATCH2
`YES
`
`S54
`
`
`
`AUTHENTCATE
`
`NOT
`AUTHENTCATE
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
`
`Page 14 of 64
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`

`

`Patent Application Publication
`
`Nov. 1, 2001 Sheet 14 of 27
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`US 2001/0036297 A1
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`(J.J. Z
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`C19
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`Page 15 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 15 of 27 US 2001/0036297 A1
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`F.G. 5
`
`START
`
`
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`S21
`S22
`
`VERIFY FINGERPRINT DATA OF THE
`FIRST FINGER BY REGISTERED DATA
`
`DATA STORAGE
`UNIT FOR
`PRIMARY
`VERFICATION
`
`RATE OF MATCHING > n ?
`NO
`NOK RATE OF MATCHING > s?
`YES
`
`YES
`
`VERIFY NFPUT ANGLE BY
`REGISTERED ANGLE DATA
`
`
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VERIFICATION
`
`
`
`
`
`
`
`
`
`DO ANGLES MATCHP
`YES
`
`AUTHENTCATE
`
`NOT
`AUTHENTCATE
`
`S64
`
`END
`
`Page 16 of 64
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`

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`Patent Application Publication
`
`Nov. 1, 2001 Sheet 16 of 27
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`US 2001/0036297 A1
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`
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`E 22
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`Page 17 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 17 of 27 US 2001/0036297 A1
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`FIG 7
`
`
`
`DATA STORAGE
`UNT FOR
`PRIMARY
`VERIFICATION
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`S2
`S22
`
`VERIFY FINGERPRINT DATA OF THE
`FIRST FINGER BY REGISTERED DATA
`
`RATE of MATCHING
`NO
`
`> n e YYES
`
`RATE OF MATCHING 2 s 2
`YES
`
`
`
`NPUT SIGNATURE INFORMATION
`
`VERIFY INPUTTED HANDWRITTEN
`SIGNATURE BY REGISTERED
`HANDWRITTEN SGNATURE DATA
`
`
`
`DATA STORAGE
`UNT FOR
`SECONDARY
`VERIFICATION
`
`
`
`
`
`
`
`
`
`
`
`DO HANDWRITINGS MATCH p
`YES
`
`AUTHENTICATE
`
`S74
`
`NOT
`AUTHENCATE
`
`END
`
`Page 18 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 18 of 27
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`US 2001/0036297 A1
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`8 | 9 | -
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`Page 19 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 19 of 27 US 2001/0036297 A1
`FIG. 19
`
`DATA STORAGE
`UNT FOR
`PRIMARY
`VERIFICATION
`
`START
`
`
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`S2
`S22
`
`VERIFY FINGERPRINT DATA OF THE
`FIRST FINGER BY REGISTERED DATA
`
`RATE OF MATCHING > n e YYES
`NO
`
`RATE OF MATCHING 2 s 2
`YES
`
`NFUT SEAL DATA
`
`VERIFY INPUTTED SEAL DATA
`BY REGISTERED SEAL DATA
`
`
`
`
`
`
`
`DATA STORAGE
`UNT FOR
`SECONDARY
`VERIFICATION
`
`
`
`DO TWO SORTS OF
`SEAL DATA MATCH 2
`YES
`
`AUTHENTCATE
`
`
`
`
`
`
`
`NOT
`AUTHENTCATE
`
`END
`
`Page 20 of 64
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`

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`Patent Application Publication
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`Nov. 1, 2001 Sheet 20 of 27 US 2001/0036297 A1
`F G. 2O
`
`
`
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`
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`11, %
`E. %
`AAAA
`
`J. 33
`
`
`
`2Ob
`
`2OA (10)
`
`
`
`PATTERN ON
`FINGERPRINT
`INPUT SCREEN
`
`Page 21 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 21 of 27
`
`US 2001/0036297 A1
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`2OA(O)
`
`PATTERN ON
`FNGERPRINT
`INPUT SCREEN
`
`2Ob
`
`le1 2OA(O)
`
`34
`
`34b
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`Page 22 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 22 of 27 US 2001/0036297 A1
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`34-d
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`
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`
`
`37. ZFS Xfrtu34
`2NNN2
`F. G. 24A 38 3.
`% 38
`2Ob 2. NNNN N2-34b
`36 EM 2OC
`-2OA
`
`
`
`FG. 24B
`
`O O
`O O
`O O
`O O
`
`NERN
`NPUT SCREEN
`
`--2OA
`
`Y
`
`2OC 20 b
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`Page 23 of 64
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`Patent Application Publication
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`US 2001/0036297 A1
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 24 of 27 US 2001/0036297 A1
`FIG. 26
`
`
`
`DATA STORAGE
`UNIT FOR
`PRIMARY
`VERIFICATION
`
`NPUT FINGERPRINT DATA
`OF THE FIRST FINGER
`
`S2
`S22
`
`WERFY FNGERPRINT DATA OF THE
`FRST FINGER BY REGISTERED DATA
`
`RATE OF MATCHING 2 in ?
`NO
`NOK RATE OF MATCHING > s?
`YES
`
`YES
`
`
`
`
`
`INPUT DATA FROM KEYBOARD
`
`VER FY DATA INPUTTED FROM
`KEYBOARD BY REGISTERED DATA
`
`
`
`DATA STORAGE
`UNIT FOR
`SECONDARY
`VER FCATION
`
`DO TWO SORTS OF
`DATA MATCH 2
`YES
`
`AUTHENTICAE
`
`
`
`S94
`
`
`
`
`
`
`
`NOT
`AUTHENTICATE
`
`END
`
`Page 25 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 25 of 27 US 2001/0036297 A1
`
`
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`F. G. 27A
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`F. G. 27B
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`Page 26 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 26 of 27 US 2001/0036297 A1
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`
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`22
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`FNEESR
`INPUT SCREEN
`
`2Ob
`
`-2OA (1O)
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`F. G. 28B
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`Page 27 of 64
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`Patent Application Publication
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`Nov. 1, 2001 Sheet 27 of 27 US 2001/0036297 A1
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`
`
`F. G. 3OA
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`F. G. 3OB
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`FNERN
`
`INPUT SCREEN
`
`2OC
`N 2OA
`
`2Ob
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`Page 28 of 64
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`US 2001/0036297 A1
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`Nov. 1, 2001
`
`PERSONAL AUTHENTICATION SYSTEMAND
`METHOD USING BIOMETRICS INFORMATION,
`AND REGISTERING APPARATUS,
`AUTHENTICATING APPARATUS AND PATTERN
`INFORMATION INPUT MEDIUM FOR THE
`SYSTEM
`
`BACKGROUND OF THE INVENTION
`0001) 1. Field of the Invention
`0002 The present invention relates to a system and a
`method for authenticating a perSon using biometrics infor
`mation Such as fingerprint, palm print, finger shape, palm
`shape, Voice, retina, iris, face image, dynamic signature,
`blood vessel pattern, keystroke, or the like, and a registering
`apparatus, an authenticating apparatus, and a pattern infor
`mation input medium for the System.
`0003 2. Description of the Related Art
`0004.
`In recent years, there is growing interest in security
`with wide introduction of computers into Social Systems. ID
`cards or passwords are heretofore used as a means for
`Verifying a person when he or she enters into a computer
`room or uses a terminal. However, this leaves a lot of
`problems in respect to Security.
`0005. As a more reliable means than passwords for
`Verifying a perSon, a personal authenticating technique using
`biometrics information Such as fingerprint, palm print, finger
`shape, palm shape, Voice, retina, iris, face image, dynamic
`Signature, blood vessel pattern, keystroke, or the like,
`attracts public attention. Verification of a person using
`biometrics information inherent in a person produces a very
`high reliability.
`0006. In a personal authentication system using such
`biometrics information, biometrics information on each per
`Son who should be authenticated in the System is obtained,
`characteristic data is extracted from the biometrics informa
`tion, and the characteristics data is beforehand registered as
`registry characteristic data of each perSon to be authenti
`cated. When the biometrics information is verified in order
`to authenticate a perSon, biometrics information on the
`person to be authenticated is obtained, characteristics data to
`be authenticated is extracted from the biometrics informa
`tion, the above characteristic data to be authenticated is
`compared and matched with the registry characteristic data
`registered beforehand, and a rate of matching of these two
`Sorts of characteristic data is calculated. When the rate of
`matching between the registry characteristic data and the
`characteristic data to be authenticated is not less than a
`predetermined value (or exceeds a predetermined value), the
`person to be authenticated is determined to be the registered
`perSon.
`0007 Next, personal authentication using fingerprint,
`which is one piece of biometrics information that can be
`used to verify a person, will be briefly described. Fingerprint
`is Said to have two characteristics that are “no two perSons
`have exactly the same fingerprint” and “the fingerprint of
`anyone individual remain unchanged through life'. There
`fore, fingerprint is considered to be a Strong means for
`Verifying a perSon. A lot of researches and developments
`relating to personal authentication Systems using finger
`prints are made in recent years.
`
`0008 Fingerprints are minute irregularities on fingertips
`of a perSon. Ranges of the minute irregularities are called
`ridges. The ridges form various patterns inherent to a perSon.
`When the ridge is followed, a bifurcation at which the ridge
`branches (bifurcation) or a dead-end (ending) appears. Dis
`tribution of bifurcations and endings differs in individuals,
`which is thus called minutiae of fingerprints. Matching of a
`State of distribution of the minutiae is used as a strong means
`to specify a perSon.
`0009. When personal authentication is performed using
`Such a fingerprint as biometrics information, coordinates of
`an interSection of ridges of the fingerprint, coordinates of a
`center of the fingerprint, coordinates of a delta of the
`fingerprint, a direction of a ridge of the fingerprint, a
`distance between minutiae, the number of ridges between
`minutiae of the fingerprint, etc. are extracted along with a
`position (coordinates), a type, and a direction of the minutia
`described above.
`0010. In a personal authentication system using finger
`prints, fingerprint characteristic data of a perSon is before
`hand registered. Namely, a user (person) of the System inputs
`fingerprint image data into a predetermined apparatus, char
`acteristic data is extracted from the fingerprint image data
`and registered as registry characteristic data.
`0011 When fingerprint image data of an authenticating
`object perSon is obtained by a fingerprint Scanner at the time
`of Verification, characteristic data to be authenticated is
`extracted from the fingerprint image data, and it is verified
`whether the characteristic data to be authenticated matches
`the registry characteristic data registered beforehand. When
`a rate of matching is not less than a predetermined value, it
`is determined that the person to be authenticated is the
`perSon registered in the personal authentication System.
`0012 Generally, a fingerprint pattern is obtained in a
`form of a fingerprint image, by photographing the image by
`a CCD camera while a finger is contacted with a special
`optical System, or by detecting only a ridged part on the skin
`by a capacitance Sensor. However, when an image of an
`unclear fingerprint, that is, an blurred image of a fingerprint
`or an image of a fingerprint in which ridges are adhered by
`Sweat, is obtained, it is impossible to Verify whether a perSon
`to be authenticated is a registered perSon because a rate of
`matching becomes less than the predetermined value when
`the Verification is performed.
`0013 In another case, it is likely that a rate of matching
`becomes less than the predetermined value due to unex
`pected factors in the personal authorization System using
`biometricS information. AS the factors, there are dryness,
`roughness, etc. of the fingertips in winter time along with
`deformation due to injury in the case of personal authenti
`cation using a fingerprint, and deformation due to injury or
`disease in the case of perSon authorization using a face or an
`S.
`In the above-mentioned personal authorization
`0014.
`technique using biometrics information, when a rate of
`matching becomes less than the predetermined value and the
`personal authentication thus results in failure due to any
`factor, the process is completed in consideration that the
`person is not the person himself/herself (registered person),
`or personal authentication is performed by inputting a pass
`word or the like as a measure for relief. When the latter
`
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`means is used, a device for inputting a password Such as a
`ten key pad, a keyboard or the like is beforehand provided
`to the apparatus for fingerprint verification, and the perSon
`to be authenticated inputs a password registered beforehand
`from the device.
`0.015 When the authentication is failed because of an
`input error of the biometrics information or the like, re
`Verification is performed again by re-inputting the same
`biometrics information, which Sometimes allows normal
`authentication. However, when it becomes impossible to
`exceed a predetermined rate of matching due to a factor Such
`as injury or the like, a System without a measure for relief
`cannot authenticate the person to be authenticated as the
`person himself/herself (registered person).
`0016. When a measure for relief by inputting a password
`is employed, an advantage of personal authentication using
`biometrics information that can eliminate a trouble of key
`board inputting is lost, which leads to complexity or an
`increase in cost of the System.
`0.017. When personal authentication is failed, as another
`idea, biometrics information which is different from the one
`that has been used when the authentication was failed, is
`obtained to authenticate the person (for, example, the
`authentication is performed using a face or an iris when the
`personal authentication using a fingerprint is failed). In order
`to realize this System, it is necessary to provide plural kinds
`of biometrics information inputting apparatus to each of the
`registering apparatus and the authenticating apparatus.
`Namely, a biometrics information inputting apparatus (for
`example, an apparatus that obtains a face or an iris as image
`data) of a different type from the biometrics information
`inputting apparatus used in the first verification (primary
`verification) is required, which also leads to complication or
`an increase in cost of the System.
`0.018. In the personal authentication system using bio
`metrics information, the user has to beforehand register
`registry characteristic data, as Stated above. When a finger
`print is used as the biometrics information, the user inputs
`fingerprint image data in registration. However, it is not
`possible to register a person whose fingerprint is in unstable
`conditions due to dryneSS or roughness of the finger in
`winter time, or a person whose fingerprint cannot be prima
`rily obtained due to injury or the like, which Sometimes
`unables personal authentication. Therefore, a measure for
`relief in Such case is further necessary.
`0.019 When the measure for relief by inputting a pass
`word is employed to cope with it, it is necessary to provide
`a device Such as a ten key pad, a keyboard or the like, as
`Stated above, which leads to complexity or an increase in
`cost of the System. Alternatively, it is considered that registry
`characteristic data is extracted from biometrics information
`which is different from the biometrics information that failed
`to be registered, and is registered (for example, a face or an
`iris is used to be registered when registry using, for example,
`a fingerprint is impossible). In order to realize this system,
`it is necessary to provide plural kinds of biometrics infor
`mation inputting apparatuses, which also leads to complex
`ity or an increase in cost of the System.
`SUMMARY OF THE INVENTION
`0020. In the light of the above problems, an object of the
`present invention is to provide a personal authentication
`
`System and method using biometrics information, and a
`registering apparatus, an authenticating apparatus and a
`pattern information input medium for the System, which
`allows Secondary verification using only existing structural
`apparatuses when personal authentication becomes impos
`Sible in primary verification Since a rate of matching
`between biometrics information (registry characteristic
`data), obtained in registration, and biometrics information
`(characteristic data to be authenticated), obtained in verifi
`cation, is decreased by an unexpected factor, or when
`registration of biometrics information (registry characteris
`tic data) becomes impossible in registration due to a State of
`a predetermined part of a body, thereby realizing a measure
`for relief in personal authentication without causing com
`plexity or an increase in cost.
`0021. The present invention therefore provides a personal
`authentication System using biometricS information com
`prising a registering apparatus including a first biometrics
`information inputting unit for obtaining biometrics informa
`tion of a person to be registered, the registering apparatus
`obtaining data for Verification from information inputted
`using the first biometrics information inputting unit and
`registering the same, and an authenticating apparatus for
`determining whether a person to be authenticated is a perSon
`registered by the registering apparatus, on the basis of the
`data for Verification registered by the registering apparatus,
`the registering apparatus including a first extracting unit for
`extracting biometricS characteristic data from the biometrics
`information obtained by the first biometrics information
`inputting unit, and registering the biometrics characteristic
`data as registry biometricS characteristic data for primary
`Verification, and a Second extracting unit for extracting data,
`which is different from the registry biometrics characteristic
`data for primary verification, from information inputted
`using the first biometrics information inputting unit, and
`registering the data as registry data for Secondary verifica
`tion.
`0022. The registering apparatus may comprise a State
`determining unit for determining a State of the registry
`biometricS characteristic data for primary verification
`extracted by the first extracting unit, and the Second extract
`ing unit may carry out extraction and registration according
`to a result of determination by the State determining unit.
`0023 The authenticating apparatus may comprise a Sec
`ond biometrics information inputting unit for obtaining
`biometricS information of the perSon to be authenticated, a
`third extracting unit for extracting biometricS characteristic
`data from biometrics information of the person to be authen
`ticated obtained by the Second biometrics information input
`ting unit, a primary verifying unit for Verifying whether the
`biometricS characteristic data extracted by the third extract
`ing unit matches the registry biometricS characteristic data
`for primary verification registered by the registering appa
`ratus, a Secondary verification shift determining unit for
`determining whether to carry out Secondary verification, on
`the basis of a result of verification by the primary verifying
`unit, a fourth extracting unit for extracting data for Second
`ary Verification from information inputted using the Second
`biometricS information inputting unit, when the Secondary
`Verification shift determining unit determines that the Sec
`ondary verification is required to be carried out, a Secondary
`verifying unit for verifying whether data extracted by the
`fourth extracting unit matches the registry data for Second
`
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`Nov. 1, 2001
`
`ary verification registered by the registering apparatus, and
`a personal determining unit for determining whether the
`person to be authenticated is a perSon registered by the
`registering apparatus, on the basis of a result of Verification
`by the primary verifying unit or the Secondary verifying unit.
`0024. The authenticating apparatus may further comprise
`an instruction unit for prompting the perSon to be authenti
`cated to input data for Secondary verification by using the
`Second biometrics information inputting unit, when the
`Secondary verification shift determining unit determines that
`Secondary verification is required to be carried out. The
`authenticating apparatus may still further comprise a Sec
`ondary verification shift Setting unit for arbitrarily Setting
`whether to carry out verification by the Secondary verifying
`unit. The authenticating apparatus may still further comprise
`a personal information Setting unit for Setting in advance
`information on whether to carry out verification by the
`Secondary verifying unit as personal information for each
`registered perSon.
`0.025 The registry data for secondary verification may be
`biometricS characteristic data extracted from biometrics
`information, which is of the same type as biometrics infor
`mation in primary verification and which is obtained from a
`part which is deferent from a part from which the biometrics
`information has been obtained in the primary verification. At
`this time, the biometrics information may be fingerprint
`image data, and the registry data for Secondary verification
`may be biometricS characteristic data extracted from finger
`print image data of one or more fingers which are differed
`from a finger from which the registry characteristic data for
`primary verification has been obtained.
`0026. Alternatively, the registry data for secondary veri
`fication may be biometricS characteristic data of a different
`type from biometricS characteristic data in primary verifi
`cation extracted from biometrics information, which is of
`the same type as biometrics information in primary verifi
`cation and which is obtained from the Same part or a
`different part. At this time, the biometrics information
`maybe fingerprint image data, and the registry data for
`Secondary verification may be biometricS characteristic data
`of a different type from biometricS characteristic data in the
`primary verification, extracted from fingerprint image data
`of the same finger as a registered finger from which the
`registry biometricS characteristic data for primary verifica
`tion has been obtained, or, one or more fingers which are
`different from the registered finger.
`0.027
`Still alternatively, the registry data for secondary
`Verification may be non-biometricS characteristic data inten
`tionally inputted by the perSon to be registered using the first
`biometrics information inputting unit. At this time, as the
`non-biometrics characteristic data, described in CD to (6)
`below may be used. In (2) to (6), the biometrics information
`is image data of a predetermined part of a body. The image
`data is inputted through an image input Screen of the first
`biometrics information inputting unit.
`0028) CD Time Series data having a pattern deter
`mined by the person to be registered.
`0029) (2) Input angle, of the predetermined part of
`the body on the image input Screen, which is detected
`as image data by the first biometricS information
`inputting unit.
`
`0030) (3) Contact position, of the predetermined
`part of the body on the image input Screen, which is
`detected as image data by the first biometrics infor
`mation inputting unit for registry.
`0031) (4) Contact trace information, on the image
`input Screen, which is detected as image data by the
`first biometrics information inputting unit.
`0032) (5) Contact pattern, on the image input Screen,
`which is detected as image data by the first biomet
`rics information inputting unit. At this time, the
`contact pattern may be formed by a pattern informa
`tion input medium, which is able to be possessed and
`carried by the perSon to be registered or a registered
`perSon, and the pattern information input medium
`may comprise one or more contact parts contacting
`with the image input Screen of the first biometrics
`information inputting unit to form the contact pat
`tern. Further, the pattern information input medium
`may form a pattern changing in time Series as the
`contact pattern by the one or more contact parts.
`0033) (6) When character data corresponding to
`each of a plurality of different contact patterns or a
`plurality of different contact points on the image
`input Screen is Set beforehand, the character data
`corresponding to the contact pattern or the contact
`point detected as image data by the first biometrics
`information inputting unit is used as the non-biomet
`rics characteristic data. At this time, the non-biomet
`rics characteristic data may be a character data String
`Successively inputted in time Series. The registering
`apparatus and the authenticating apparatus may com
`prise a keyboard unit attachably and detachably
`disposed to the biometrics information inputting unit
`to be able to form the contact pattern or the contact
`point by contacting with the image input Screen
`according to a key operation, and a keyboard infor
`mation extracting unit for converting the contact
`pattern or the contact point formed according to the
`key operation of the keyboard unit into correspond
`ing character data, and outputting the same.
`0034. The present invention further provides a personal
`authentication method using biometrics information com
`prising the Steps of a registering Step of obtaining first
`biometricS information of a person to be registered using a
`first biometricS information inputting unit, registering bio
`metricS characteristic data extracted from the first biometrics
`information as registry biometricS characteristic data for
`primary verification, inputting registry data for Secondary
`verification, which is different from the registry biometrics
`characteristic data for primary verification, using the first
`biometricS information inputting unit, and registering the
`Same, and an authenticating Step of determining whether a
`person to be authenticated is a perSon registered in the
`registering Step, on the basis of the registry biometrics
`characteristic data for primary verification or the registry
`data for Secondary verification registered in the registering
`Step.
`0035. At the authenticating step, second biometrics infor
`mation of the person to be authenticated may be obtained via
`a Second biometrics information inputting unit, it may be
`Verified whether biometricS characteristic data extracted
`from the Second biometrics information matches the registry
`
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`US 2001/0036297 A1
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`Nov. 1, 2001
`
`biometricS characteristic data for primary verification reg
`istered beforehand, whether to carryout Secondary verifica
`tion may be determined on the basis of a result of the
`Verification, data corresponding to the registry data for
`Secondary verificat

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