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    Liquid crystal driving circuit and load driving circuit
    22.
    发明授权
    Liquid crystal driving circuit and load driving circuit 失效
    液晶驱动电路和负载驱动电路

    公开(公告)号：US07358951B2

    公开(公告)日：2008-04-15

    申请号：US10895320

    申请日：2004-07-21

    申请人： Tetsuya Saito ,  Hironori Minamizaki ,  Tetsuro Itakura

    发明人： Tetsuya Saito ,  Hironori Minamizaki ,  Tetsuro Itakura

    IPC分类号： G09G3/36

    CPC分类号： G09G3/3696 ,  G09G3/2011 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2330/021 ,  G09G2360/16

    摘要： There is disclosed a liquid crystal driving circuit configured to supply an analog voltage in accordance with digital grayscale data to each of a plurality of signal lines, said circuit comprising: a reference voltage generation circuit configured to output analog reference voltages corresponding to each of said digital grayscale data; a plurality of buffer amplifiers configured to individually perform buffering of said respective analog reference voltages; a grayscale mode circuit configured to determine a grayscale number of said digital grayscale data based on a grayscale mode signal supplied from the outside; and an amplifier enable circuit configured to set each of said plurality of buffer amplifiers to an enable state or a disable state based on an output signal of said grayscale mode circuit.

    摘要翻译： 公开了一种液晶驱动电路，其被配置为将数字灰度数据的模拟电压提供给多条信号线中的每条信号线，所述电路包括：参考电压产生电路，被配置为输出对应于每个所述数字 灰度数据; 多个缓冲放大器，被配置为单独地执行所述各个模拟参考电压的缓冲; 灰度模式电路，被配置为基于从外部提供的灰度模式信号来确定所述数字灰度数据的灰度数; 以及放大器使能电路，被配置为基于所述灰度级模式电路的输出信号将所述多个缓冲放大器中的每一个设置为使能状态或禁用状态。

    RADIO RECEIVER
    23.
    发明申请
    RADIO RECEIVER 审中-公开
    无线接收器

    公开(公告)号：US20070111688A1

    公开(公告)日：2007-05-17

    申请号：US11558785

    申请日：2006-11-10

    申请人： Takeshi Ueno ,  Tetsuro Itakura ,  Rui Ito ,  Hiroshi Yoshida ,  Hidenori Okuni

    发明人： Takeshi Ueno ,  Tetsuro Itakura ,  Rui Ito ,  Hiroshi Yoshida ,  Hidenori Okuni

    IPC分类号： G06F3/033

    CPC分类号： H04B1/30

    摘要： A radio receiver, including: a receiver configured to receive a radio signal; a frequency converter configured to generate a baseband signal by converting frequency the radio signal; a subtractor configured to generate a differential signal by subtracting an analog signal from the baseband signal; an amplifier configured to generate an amplified differential signal by amplifying the difference signal by a first amplification factor or a second amplification factor; an analog-digital converter configured to convert the amplified difference signal to a digital signal; an integrator configured to generate an integration signal by integrating a value indicated by the digital signal; a memory configured to store the integration signal into a first address when the amplifier amplifies the difference signal by the first amplification factor, and configured to store the integration signal into a second address when the amplifier amplifies the difference signal by the second amplification factor; and a digital-analog converter configured to generate the analog signal by converting the integration signal stored in the first address of the memory when the amplifier amplifies the difference signal by the first amplification factor, and configured to generate the analog signal by converting the integration signal stored in the second address of the memory when the amplifier amplifies the difference signal by the second amplification factor.

    摘要翻译： 一种无线电接收机，包括：被配置为接收无线电信号的接收机; 变频器，被配置为通过将频率转换成无线电信号来产生基带信号; 减法器，被配置为通过从所述基带信号中减去模拟信号来产生差分信号; 放大器，被配置为通过以第一放大因子或第二放大因子放大差分信号来产生放大的差分信号; 模拟数字转换器，被配置为将放大的差分信号转换为数字信号; 积分器，被配置为通过对由数字信号指示的值进行积分来产生积分信号; 存储器，被配置为当放大器将差分信号放大第一放大因子时将积分信号存储到第一地址中，并且被配置为当放大器将差分信号放大第二放大因子时将积分信号存储为第二地址; 以及数模转换器，被配置为当放大器将差分信号放大第一放大因子时，通过转换存储在存储器的第一地址中的积分信号来产生模拟信号，并且被配置为通过转换积分信号 当放大器将差分信号放大第二放大因子时，存储在存储器的第二地址中。

    Amplifier, filter using the same, and radio communication device
    24.
    发明申请
    Amplifier, filter using the same, and radio communication device 审中-公开
    放大器，使用相同的滤波器和无线电通信设备

    公开(公告)号：US20070024359A1

    公开(公告)日：2007-02-01

    申请号：US11387317

    申请日：2006-03-23

    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。

    OPERATIONAL AMPLIFIER CIRCUIT, SAMPLE/HOLD CIRCUIT AND FILTER CIRCUIT USING THE OPERATIONAL AMPLIFIER CIRCUIT
    28.
    发明申请
    OPERATIONAL AMPLIFIER CIRCUIT, SAMPLE/HOLD CIRCUIT AND FILTER CIRCUIT USING THE OPERATIONAL AMPLIFIER CIRCUIT 失效
    操作放大器电路，采样/保持电路和使用运算放大器电路的滤波电路

    公开(公告)号：US20050285673A1

    公开(公告)日：2005-12-29

    申请号：US11216100

    申请日：2005-09-01

    申请人： Tetsuro Itakura ,  Takafumi Yamaji

    发明人： Tetsuro Itakura ,  Takafumi Yamaji

    IPC分类号： G11C27/02 ,  H03F3/45 ,  H03F3/68

    CPC分类号： H03F3/45475 ,  G11C27/024 ,  G11C27/026 ,  H03F3/45632 ,  H03F3/45928 ,  H03F3/45977 ,  H03F2203/45101 ,  H03F2203/45138 ,  H03F2203/45428 ,  H03F2203/45574 ,  H03H11/1243 ,  H03H11/32

    摘要： An operational amplifier circuit is constituted by first and second inverted amplifier circuits (A1, A2) that receive first and second input signals, a third inverted amplifier circuit (A3) that receives an estimated common-mode output signal and an output signal from the first inverted amplifier circuit and outputs first and second output signals, a fourth inverted amplifier circuit (A4) that receives the estimated common-mode output signal and an output signal from the second inverted amplifier circuit and outputs third and fourth output signals, where the estimated common-mode output signal is generated by adding the second output signal and the fourth output signal, and first and second non-inverted amplifier circuits (A5, A6) that receive the estimated common-mode output signal and feed it back to the first and second inverted amplifier circuits.

    摘要翻译： 运算放大器电路由接收第一和第二输入信号的第一和第二反相放大器电路（A 1，A 2）构成，第三反相放大器电路（A 3），其接收估计的共模输出信号和输出信号 从第一反相放大器电路输出第一和第二输出信号;第四反相放大电路（A 4），其接收估计的共模输出信号和来自第二反相放大器电路的输出信号，并输出第三和第四输出信号; 其中通过将第二输出信号和第四输出信号相加来产生估计的共模输出信号，以及接收估计的共模输出信号并将其馈送的第一和第二非反相放大器电路（A 5，A 6） 回到第一和第二反相放大器电路。

    Multiple input analog-to-digital conversion apparatus and radio receiver using the same
    29.
    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。

    Balanced amplifier and filter using the same
    30.
    发明授权
    Balanced amplifier and filter using the same 失效
    平衡放大器和滤波器使用相同

    公开(公告)号：US06781464B2

    公开(公告)日：2004-08-24

    申请号：US10281103

    申请日：2002-10-28

    申请人： Takeshi Ueno ,  Tetsuro Itakura ,  Zdzislaw Czarnul

    发明人： Takeshi Ueno ,  Tetsuro Itakura ,  Zdzislaw Czarnul

    IPC分类号： H03F345

    CPC分类号： H03F3/211 ,  H03F3/45475 ,  H03F3/45632 ,  H03F3/45766 ,  H03F3/45928 ,  H03F3/45991 ,  H03F2203/45138 ,  H03H11/045 ,  H03H11/32

    摘要： A balanced amplifier comprising a pair of voltage-to-current converters including a first input terminal, a second input terminal, a first output terminal and a second output terminal to convert an input voltage applied to the first input terminal into an output current output from each of the first output terminal and the second output terminal, the second input terminal and the second output terminal of one of the converters being connected to the second input terminal and the second output terminal of the other of the converters to cancel common-mode components each other and extract differential-mode components.

    摘要翻译： 一种平衡放大器，包括一对电压 - 电流转换器，包括第一输入端子，第二输入端子，第一输出端子和第二输出端子，用于将施加到第一输入端子的输入电压转换为从 第一输出端子和第二输出端子，其中一个转换器的第二输入端子和第二输出端子连接到另一个转换器的第二输入端子和第二输出端子，以抵消共模元件 并提取差分模式组件。