Source: http://www.google.com/patents/US7965874?dq=6,921,985
Timestamp: 2016-10-24 23:10:43
Document Index: 745296688

Matched Legal Cases: ['Application No. 03', 'Application No. 03', 'Application No. 03725787', 'Application No. 03725787', 'Application No. 03725787', 'Application No. 2004']

Patent US7965874 - Biological information detecting device - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsWhen an image representing biological information is input from a biological information input unit 10, such as a fingerprint sensor or the like, for obtaining an image representing biological information, such as a fingerprint or the like, statistical quantities, such as the mean value and standard...http://www.google.com/patents/US7965874?utm_source=gb-gplus-sharePatent US7965874 - Biological information detecting deviceAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7965874 B2Publication typeGrantApplication numberUS 11/268,708Publication dateJun 21, 2011Filing dateNov 8, 2005Priority dateMay 15, 2003Fee statusPaidAlso published asDE60325422D1, EP1624412A1, EP1624412A4, EP1624412B1, US20060056700, WO2004102481A1Publication number11268708, 268708, US 7965874 B2, US 7965874B2, US-B2-7965874, US7965874 B2, US7965874B2InventorsYukihiro Abiko, Takashi ShinzakiOriginal AssigneeFujitsu LimitedExport CitationBiBTeX, EndNote, RefManPatent Citations (35), Non-Patent Citations (10), Classifications (13), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetBiological information detecting device
US 7965874 B2Abstract
μ=(1/N)ΣΣf(x,y)
σ=√((1/N)ΣΣf(x,y)−μ)2)
G x=(ΣF(x,y)�x)/(ΣF(x,y))
G y=(ΣF(x,y)�y)/(ΣF(x,y))
if f(x,y)≦T, F(x, y)=1
and if f(x,y)>T, F(x,y)=0 (the second equation)
S x=ξ�√(M20/ΣF(X,Y))
S y=η�√(M02/ΣF(x,y))
M pq=ΣΣ((x−G x)P(y−G y)q)�F(x,y) (the third equation)
S x=ξ�√(M20/ΣF(x,y))=�
S y=η�√(M02/ΣF(x,y))=� (the fourth equation)
S=(Σ(i−μH)3 �H(i))/σH 3 (the eighth equation)
K=(Σ(i−μH)4 �H(i))/σH 4 (the ninth equation)
O(y)=μB−(μLB(y)−μ(y))�σ/σ(y)−μ (the twelfth equation)
L′(x,y)=L(x,y)+O(y) (the thirteenth equation)
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mailed Oct. 2, 2006.2European Patent Office Action, mailed Jan. 17, 2007, and issued in corresponding European Patent Application No. 03 725 787.0-2218.3European Patent Office Invitation pursuant to Article 94(3) and Rule 71(1) EPC, dated Jun. 5, 2008 and issued in corresponding European Patent Application No. 03725787.0-2218.4European Patent Office Summons to Attend Oral Proceedings, mailed Jan. 16, 2008 and issued in corresponding European Patent Application No. 03725787.0-2218.5European Search Report for Application No. 03725787.0-2218; mailed Jul. 11, 2006.6Japanese Patent Office Action, mailed Aug. 19, 2008 and issued in corresponding Japanese Patent Application No. 2004-571858.7Kim, B.-G., et al., "Adaptive image normalisation based on block processing for enhancement of fingerprint image", Electronics Letters, vol. 38, No. 14, Jul. 2002, pp. 696-698.8Maltoni et al, "Handbook of Fingerprints Recognition" 2003; Sectio 3.5: Segmentation. pp. 94-95.9 *New enhancement algorithm for fingerprint images, Kim et al., IEEE, 1051-4651, 2002, pp. 879-882.10Teruyuki Higuchi, "Fingerprint Authentication System / New Fingerprint Sensor", NEC Technical Journal, vol. 55, No. 3, 2002.* Cited by examinerClassifications U.S. Classification382/116International ClassificationG06T7/60, G06T7/00, G06K9/00, G06T5/00Cooperative ClassificationG06T7/606, G06K9/00067, G06K9/036, G06K9/0002European ClassificationG06K9/00A1A, G06K9/00A2, G06T7/60M, G06K9/03QLegal EventsDateCodeEventDescriptionNov 8, 2005ASAssignmentOwner name: FUJITSU LIMITED, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ABIKO, YUKIHIRO;SHINZAKI, TAKASHI;REEL/FRAME:017196/0582Effective date: 20050422Aug 16, 2011CCCertificate of correctionNov 19, 2014FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services