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    Multiple input analog-to-digital conversion apparatus and radio receiver using the same
    2.
    发明授权
    Multiple input analog-to-digital conversion apparatus and radio receiver using the same 有权
    多输入模数转换装置和使用其的无线电接收机

    公开(公告)号：US07250895B2

    公开(公告)日：2007-07-31

    申请号：US11409603

    申请日：2006-04-24

    申请人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： H03M1/12

    CPC分类号： H03M1/123 ,  H03M1/0695 ,  H03M1/1205 ,  H03M1/44

    摘要： A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade to convert a second analog input signal to a second digital output signal, and an operational amplifier shared between the first conversion stage and the second conversion stage in a time sharing.

    摘要翻译： 多输入AD转换装置包括：第一单元AD转换器，包括级联连接的多个第一转换级，以将第一模拟输入信号转换为第一数字输出信号;第二单元AD转换器，包括多个第二转换级， 级联以将第二模拟输入信号转换为第二数字输出信号，以及在时间共享中在第一转换级与第二转换级之间共享的运算放大器。

    Multiple input analog-to-digital conversion apparatus and radio receiver using the same
    3.
    发明授权
    Multiple input analog-to-digital conversion apparatus and radio receiver using the same 有权
    多输入模数转换装置和使用其的无线电接收机

    公开(公告)号：US07088278B2

    公开(公告)日：2006-08-08

    申请号：US11088077

    申请日：2005-03-23

    申请人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： H03M1/12

    CPC分类号： H03M1/123 ,  H03M1/0695 ,  H03M1/1205 ,  H03M1/44

    摘要： A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade to convert a second analog input signal to a second digital output signal, and an operational amplifier shared between the first conversion stage and the second conversion stage in a time sharing.

    摘要翻译： 多输入AD转换装置包括：第一单元AD转换器，包括级联连接的多个第一转换级，以将第一模拟输入信号转换为第一数字输出信号;第二单元AD转换器，包括多个第二转换级， 级联以将第二模拟输入信号转换为第二数字输出信号，以及在时间共享中在第一转换级与第二转换级之间共享的运算放大器。

    Multiple input analog-to-digital conversion apparatus and radio receiver using the same
    6.
    发明申请
    Multiple input analog-to-digital conversion apparatus and radio receiver using the same 有权
    多输入模数转换装置和使用其的无线电接收机

    公开(公告)号：US20050219101A1

    公开(公告)日：2005-10-06

    申请号：US11088077

    申请日：2005-03-23

    申请人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Daisuke Kurose ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： H03M1/12 ,  H03M1/06 ,  H03M1/10 ,  H03M1/44

    CPC分类号： H03M1/123 ,  H03M1/0695 ,  H03M1/1205 ,  H03M1/44

    摘要： A multiple input AD conversion apparatus includes a first unit AD converter including a plurality of first conversion stages connected in cascade to convert a first analog input signal to a first digital output signal, a second unit AD converter including a plurality of second conversion stages connected in cascade to convert a second analog input signal to a second digital output signal, and an operational amplifier shared between the first conversion stage and the second conversion stage in a time sharing.

    摘要翻译： 多输入AD转换装置包括：第一单元AD转换器，包括级联连接的多个第一转换级，以将第一模拟输入信号转换为第一数字输出信号;第二单元AD转换器，包括多个第二转换级， 级联以将第二模拟输入信号转换为第二数字输出信号，以及在时间共享中在第一转换级与第二转换级之间共享的运算放大器。

    A/D converting apparatus
    7.
    发明授权
    A/D converting apparatus 失效
    A / D转换装置

    公开(公告)号：US07884749B2

    公开(公告)日：2011-02-08

    申请号：US12349180

    申请日：2009-01-06

    申请人： Masanori Furuta ,  Tomohiko Ito ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Masanori Furuta ,  Tomohiko Ito ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： H03M1/38

    CPC分类号： H03M1/1215 ,  H03M1/162 ,  H03M1/164 ,  H03M1/468

    摘要： An A/D converting apparatus includes a first A/D converter to sample an analog input signal having a D/A converter to generate a comparative signal for successive comparison with the analog input signal, a signal generator generate a differential signal between the analog input signal and the comparative signal, and a comparator to compare the comparative signal with a standard value to generate a first digital signal exhibiting high-order bit; an amplifier to amplify the differential signal to generate a residue signal; and a second A/D converter to sample the residue signal to generate a second digital signal exhibiting low-order bit.

    摘要翻译： A / D转换装置包括：第一A / D转换器，对具有D / A转换器的模拟输入信号进行采样以产生用于与模拟输入信号连续比较的比较信号，信号发生器在模拟输入端之间产生差分信号 信号和比较信号，以及比较器，用于将比较信号与标准值进行比较，以产生呈现高位的第一数字信号; 放大器，用于放大差分信号以产生残余信号; 以及第二A / D转换器，用于对残留信号进行采样以产生呈现低阶位的第二数字信号。

    Amplifier, filter using the same, and radio communication device
    8.
    发明授权
    Amplifier, filter using the same, and radio communication device 失效
    放大器，使用相同的滤波器和无线电通信设备

    公开(公告)号：US07414468B2

    公开(公告)日：2008-08-19

    申请号：US11928766

    申请日：2007-10-30

    申请人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

    发明人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

    IPC分类号： H03F3/45

    CPC分类号： H03F3/193 ,  H03F3/45085 ,  H03F3/45183 ,  H03F2203/45352

    摘要： An amplifier includes an amplification unit which amplify a first difference between first and second input signals, a second difference between second and third input signals and a third difference between third and first input signals by a differential mode gain, and amplify an average of the first, second and third input signal by a common mode gain, for outputting a first output signal corresponding to a sum of the amplified first difference and the amplified average, a second output signal corresponding to a sum of the amplified second difference and the amplified average, and a third output signal corresponding to a sum of the amplified third difference and amplified average; first, second; and a reduction circuit which reduces the common mode gain less than the differential mode gain.

    摘要翻译： 放大器包括放大单元，其放大第一和第二输入信号之间的第一差值，第二和第三输入信号之间的第二差值以及第三和第一输入信号之间的差分模式增益的第三差值，并放大第一和第二输入信号的平均值 通过共模增益输出第二和第三输入信号，用于输出对应于放大的第一差值和放大的平均值的和的第一输出信号，对应于放大的第二差值和放大的平均值之和的第二输出信号， 以及对应于放大的第三差和放大的平均值之和的第三输出信号; 第一秒; 以及减小电路，其减小小于差分模式增益的共模增益。

    AMPLIFIER, FILTER USING THE SAME, AND RADIO COMMUNICATION DEVICE
    9.
    发明申请
    AMPLIFIER, FILTER USING THE SAME, AND RADIO COMMUNICATION DEVICE 失效
    放大器，使用其的滤波器和无线电通信设备

    公开(公告)号：US20080064359A1

    公开(公告)日：2008-03-13

    申请号：US11928766

    申请日：2007-10-30

    申请人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

    发明人： Takafumi Yamaji ,  Rui Ito ,  Tetsuro Itakura

    IPC分类号： H04Q7/20 ,  H03F3/45 ,  H03K9/00 ,  H04B1/02 ,  H04B1/10 ,  H04L27/00

    CPC分类号： H03F3/193 ,  H03F3/45085 ,  H03F3/45183 ,  H03F2203/45352

    摘要： An amplifier includes an amplification unit which amplify a first difference between first and second input signals, a second difference between second and third input signals and a third difference between third and first input signals by a differential mode gain, and amplify an average of the first, second and third input signal by a common mode gain, for outputting a first output signal corresponding to a sum of the amplified first difference and the amplified average, a second output signal corresponding to a sum of the amplified second difference and the amplified average, and a third output signal corresponding to a sum of the amplified third difference and amplified average; first, second; and a reduction circuit which reduces the common mode gain less than the differential mode gain.

    摘要翻译： 放大器包括放大单元，其放大第一和第二输入信号之间的第一差值，第二和第三输入信号之间的第二差值以及第三和第一输入信号之间的差分模式增益的第三差值，并放大第一和第二输入信号的平均值 通过共模增益输出第二和第三输入信号，用于输出对应于放大的第一差和放大的平均的和的第一输出信号，对应于放大的第二差和放大的平均之和的第二输出信号， 以及对应于放大的第三差和放大的平均值之和的第三输出信号; 第一秒; 以及减小电路，其减小小于差分模式增益的共模增益。

    FREQUENCY CONVERTING CIRCUIT AND RECEIVER
    10.
    发明申请
    FREQUENCY CONVERTING CIRCUIT AND RECEIVER 审中-公开
    频率转换电路和接收器

    公开(公告)号：US20100112971A1

    公开(公告)日：2010-05-06

    申请号：US12503199

    申请日：2009-07-15

    申请人： Junya Matsuno ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Junya Matsuno ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： H04B1/16 ,  H04B15/00

    CPC分类号： H04B1/30

    摘要： A receiver includes a multiphase mixer that multiplies a received radio signal by multiphase local signals the number of which is the same as an integer having a first prime factor and a second prime factor different from the first prime factor, and generates first multiphase baseband signals the number of which is the same as the integer, a first processing circuit that suppresses common modes for first multiphase signal groups formed by dividing the first multiphase baseband signals into groups of signals the number of which is the same as the first prime factor, and generates second multiphase baseband signals, and a second processing circuit that suppresses common modes for second multiphase signal groups formed by dividing the second multiphase baseband signals into groups of signals the number of which is the same as the second prime factor, and generates third multiphase baseband signals.

    摘要翻译： 接收机包括：多相混合器，其通过多个本地信号乘以接收的无线电信号，多相本地信号的数量与具有不同于第一素因子的第一素因子和第二素因子的整数相同，并且生成第一多相基带信号 其数量与整数相同，第一处理电路抑制通过将第一多相基带信号划分成与第一素数相同数量的信号组而形成的第一多相信号组的共模，并产生 第二多相基带信号，以及第二处理电路，其抑制通过将第二多相基带信号划分成与第二素因数相同的信号组而形成的第二多相信号组的共模，并且产生第三多相基带信号 。