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    • 4. 发明授权
    • Signal processing device, method and receiving device
    • 信号处理装置,方法和接收装置
    • US08433011B2
    • 2013-04-30
    • US13014980
    • 2011-01-27
    • Keitaro OtsukaTakeshi Inoue
    • Keitaro OtsukaTakeshi Inoue
    • H03D1/00
    • H04L25/06H04L27/06
    • A signal processing device includes: a first correlator that sequentially multiplies a first receive signal including a pattern in a receive signal and a first reference pattern signal including a complex conjugate of a first partial signal of the first receive signal at a sampling timing to generate a first correlation voltage; a second correlator that sequentially multiplies the first receive signal and a second reference pattern signal including a complex conjugate of a second partial signal, which is behind the first partial signal, at a sampling timing to generate a second correlation voltage; and a phase difference generation circuit that generates a first phase difference between the first partial signal and the second partial signal based on a first correlation peak voltage obtained when the first correlation voltage has a peak value and a second correlation peak voltage obtained when the second correlation voltage has a peak value.
    • 信号处理装置包括:第一相关器,其在采样定时顺序地将包括接收信号中的模式的第一接收信号和包括第一接收信号的第一部分信号的复共轭的第一参考模式信号相乘以产生 第一相关电压; 第二相关器,其以采样定时顺序地乘以所述第一接收信号和第二参考图形信号,所述第二参考图形信号包括位于所述第一部分信号之后的第二部分信号的复共轭,以产生第二相关电压; 以及相位差生成电路,其基于当所述第一相关电压具有峰值时获得的第一相关峰值电压和当所述第二相关电压具有峰值时获得的第二相关峰值电压,产生所述第一部分信号和所述第二部分信号之间的第一相位差 电压有峰值。
    • 8. 发明申请
    • Biometric Authentication Method, Biometric Authentication System, IC Card, and Terminal
    • 生物识别认证方法,生物识别认证系统,IC卡和终端
    • US20100117791A1
    • 2010-05-13
    • US12609383
    • 2009-10-30
    • Takeshi InoueShoko HatanakaMakoto AikawaHideyuki Takeda
    • Takeshi InoueShoko HatanakaMakoto AikawaHideyuki Takeda
    • G05B19/00
    • G06F21/32
    • A biometric authentication system 10 includes an IC card 100 including a reading unit 110 sending generation information back to a terminal and a writing unit 111 writing biometric information in a storage area indicated in a write instruction, and a terminal 200 including a card generation acquisition unit 210 receiving from the IC card the generation information, a device generation acquisition unit 211 receiving from a biometric authentication device the generation information, a biometric information acquisition unit 212 receiving biometric information from the biometric authentication device 300, a first write instruction unit 213 identifying a storage area of the same generation as the generation of the biometric authentication device and transmitting a write instruction of the biometric information to the IC card, and a second write instruction unit 214 transmitting a write instruction for a storage area of the oldest generation to the IC card.
    • 生物体认证系统10包括:IC卡100,包括将生成信息发送回终端的读取单元110和将写入指令中指示的存储区域中的生物体信息写入的写入单元111,以及包括卡生成获取单元 210从IC卡接收生成信息,从生物体认证装置接收生成信息的装置生成获取部211,生物体认证装置300接收生物体信息的生物体信息获取部212,识别生物信息 存储区域与生物体认证装置的生成相同的一代,并将生物体信息的写入指令发送到IC卡;以及第二写入指令单元214,将最古老的存储区域的写入指令发送到IC 卡。