利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

95 条记录 (耗时 0.04 秒)

    AD converter and radio receiver
    51.
    发明授权
    AD converter and radio receiver 失效
    AD转换器和无线电接收器

    公开(公告)号：US07532144B2

    公开(公告)日：2009-05-12

    申请号：US12104488

    申请日：2008-04-17

    申请人： Takafumi Yamaji ,  Takeshi Ueno

    发明人： Takafumi Yamaji ,  Takeshi Ueno

    IPC分类号： H03M1/12

    CPC分类号： H03M1/123 ,  H03M1/44 ,  H03M1/46

    摘要： Disclosed is an AD converter including: a first conversion stage including a quantizing part to generate m parallel pieces of quantized signals from m pieces of input analog signals representing n-dimensional vectors (n≦m≦2n), a decoding part to generate m pieces of decoded analog signals from the m parallel pieces of quantized signals, and a residual amplifying part to output m pieces of amplified residual signals by multiplying respective differences between each of the m pieces of analog signals and each of the m pieces of decoded analog signals; a second conversion stage including a quantizing part to generate m parallel pieces of quantized signals from the m pieces of amplified residual signals; and a synthesizing part to generate m parallel pieces of digital signals by synthesizing each of the quantized signals in the first conversion stage and in the second conversion stage at each parallel position.

    摘要翻译： 公开了一种AD转换器，包括：第一转换级，包括量化部分，用于从表示n维向量（n <= m <= 2n）的m个输入模拟信号生成m个并行量化信号，生成 m个来自m个并行量化信号的解码模拟信号，以及残余放大部分，通过将m个模拟信号中的每一个与m个解码模拟信号中的每一个相乘来输出m个放大残差信号 信号; 第二转换级，包括从所述m个放大残差信号中产生m个并行量化信号的量化部分; 以及通过在每个平行位置合成第一转换级和第二转换级中的每个量化信号来产生m个并行数字信号的合成部分。

    SAMPLE RATE CONVERTER
    52.
    发明申请
    SAMPLE RATE CONVERTER 审中-公开
    采样率转换器

    公开(公告)号：US20090079598A1

    公开(公告)日：2009-03-26

    申请号：US12057647

    申请日：2008-03-28

    申请人： Masanori Furuta ,  Takafumi Yamaji ,  Takeshi Ueno

    发明人： Masanori Furuta ,  Takafumi Yamaji ,  Takeshi Ueno

    IPC分类号： H03M7/00

    CPC分类号： H03H17/04 ,  H03H17/0416

    摘要： The sample rate converter includes a synthesizing unit which synthesizes an input signal sampled with frequency fs with a feedback signal of the frequency fs, in a frequency band from 0 to fs/N (where N indicates a natural number), with a gain greater than at least 1, to generate a synthesized signal, a downsampler which downsamples the synthesized signal to obtain an output signal of sample rate fs/N, and an upsampler which upsamples the output signal to generate the feedback signal.

    摘要翻译： 采样率转换器包括合成单元，其将从频率fs采样的输入信号与频率fs的反馈信号在0至fs / N（其中N表示自然数）的频带中合成，增益大于 至少1，以产生合成信号，下采样器，其对合成信号进行下采样以获得采样率fs / N的输出信号;以及上采样器，其对输出信号进行采样以产生反馈信号。

    COMPARATOR AND ANALOG-TO-DIGITAL CONVERTER USING THE SAME
    53.
    发明申请
    COMPARATOR AND ANALOG-TO-DIGITAL CONVERTER USING THE SAME 失效
    使用相同的比较器和模拟数字转换器

    公开(公告)号：US20090045995A1

    公开(公告)日：2009-02-19

    申请号：US12175209

    申请日：2008-07-17

    申请人： Mai NOZAWA ,  Daisuke Kurose ,  Takeshi Ueno ,  Tetsuro Itakura

    发明人： Mai NOZAWA ,  Daisuke Kurose ,  Takeshi Ueno ,  Tetsuro Itakura

    IPC分类号： H03M1/34

    CPC分类号： H03K5/2481 ,  H03K5/249

    摘要： A comparator includes a first inverter which is inserted between a power source terminal and one end of a first variable resistor, includes a first FinFET provided with a first gate terminal for receiving a positive phase output signal, and a second gate terminal for receiving a clock signal changing between a first level and a second level, inverts the positive phase output signal, and outputs a negative phase output signal, and a second inverter which is inserted between the power source terminal and one end of a second variable resistor, includes a second FinFET provided with a third gate terminal for receiving the negative phase output signal, a fourth gate terminal for receiving the clock signal, and the same polarity as the first FinFET, inverts the negative phase output signal, and outputs the positive phase output signal.

    摘要翻译： 比较器包括插入在电源端子和第一可变电阻器的一端之间的第一反相器，包括：第一FinFET，其具有用于接收正相输出信号的第一栅极端子和用于接收时钟的第二栅极端子 信号在第一电平和第二电平之间变化，使正相输出信号反相，并输出负相输出信号，并且插入在电源端和第二可变电阻的一端之间的第二反相器包括第二 FinFET具有用于接收负相输出信号的第三栅极端子，用于接收时钟信号的第四栅极端子和与第一FinFET相同的极性，反相负相输出信号，并输出正相输出信号。

    AD converter and radio receiver
    54.
    发明授权
    AD converter and radio receiver 失效
    AD转换器和无线电接收器

    公开(公告)号：US07379009B2

    公开(公告)日：2008-05-27

    申请号：US11623803

    申请日：2007-01-17

    申请人： Takafumi Yamaji ,  Takeshi Ueno

    发明人： Takafumi Yamaji ,  Takeshi Ueno

    IPC分类号： H03M1/12

    CPC分类号： H03M1/123 ,  H03M1/44 ,  H03M1/46

    摘要： Disclosed is an AD converter including: a first conversion stage including a quantizing part to generate m parallel pieces of quantized signals from m pieces of input analog signals representing n-dimensional vectors (n

    摘要翻译： 公开了一种AD转换器，包括：第一转换级，包括量化部分，用于从表示n维向量（n

    Receiving device and automatic gain control method
    55.
    发明授权
    Receiving device and automatic gain control method 失效
    接收装置和自动增益控制方法

    公开(公告)号：US07352310B2

    公开(公告)日：2008-04-01

    申请号：US11753819

    申请日：2007-05-25

    申请人： Hiroki Mori ,  Takeshi Ueno ,  Kazumi Sato

    发明人： Hiroki Mori ,  Takeshi Ueno ,  Kazumi Sato

    IPC分类号： H03M1/62

    CPC分类号： H03M1/185

    摘要： A receiving device includes a receiver; a frequency converter; an A/D converter; and a digital signal processor, wherein the A/D converter includes a variable gain amplifier adjusting a signal level of the analog signal from the frequency converter; an A/D converting portion converting an analog signal from the variable gain amplifier into an m-bit digital signal and an n-bit digital signal and outputting the m-bit digital signal and the n-bit digital signal, the n-bit digital signal serving as an output signal to the digital signal processor; and a gain controller calculating a coarse adjustment gain of the variable gain amplifier on the basis of a power of the m-bit digital signal to control the gain of the variable gain amplifier and calculating a fine adjustment gain on the basis of a power of the n-bit digital signal to control the gain of the variable gain amplifier.

    摘要翻译： 接收装置包括接收机; 变频器; A / D转换器; 以及数字信号处理器，其中所述A / D转换器包括调节来自所述变频器的模拟信号的信号电平的可变增益放大器; A / D转换部分将来自可变增益放大器的模拟信号转换为m位数字信号和n位数字信号，并输出m位数字信号和n位数字信号，n位数字信号 信号作为数字信号处理器的输出信号; 以及增益控制器，其基于所述m位数字信号的功率，计算所述可变增益放大器的粗调增益，以控制所述可变增益放大器的增益，并且基于所述可变增益放大器的功率计算微调整增益 n位数字信号来控制可变增益放大器的增益。

    Clock generator, radio receiver using the same, function system, and sensing system
    56.
    发明申请
    Clock generator, radio receiver using the same, function system, and sensing system 审中-公开
    时钟发生器，使用相同的无线电接收器，功能系统和传感系统

    公开(公告)号：US20070011482A1

    公开(公告)日：2007-01-11

    申请号：US11438589

    申请日：2006-05-22

    申请人： Akihide Sai ,  Takeshi Ueno ,  Takafumi Yamaji ,  Tetsuro Itakura

    发明人： Akihide Sai ,  Takeshi Ueno ,  Takafumi Yamaji ,  Tetsuro Itakura

    IPC分类号： G06F1/00

    CPC分类号： H03L7/23 ,  H03L7/18

    摘要： A clock generator having phase locked loops to receive reference signals from a shared reference signal source and generate clock signals differing in frequency, respectively, includes a phase comparator which generates a voltage signal in response to a phase difference between a phase of the reference signal and a phase of a feedback signal, a VCO controlled by a voltage signal from the phase comparator, and a frequency divider group connected in cascade in a feedback loop between an output of the VCO and an input of a feedback signal, and takes out a clock signals from each output of the frequency divider group.

    摘要翻译： 具有锁相环的时钟发生器分别接收来自共享参考信号源的参考信号并且分别产生频率不同的时钟信号，该相位比较器响应于参考信号的相位和相位差之间的相位差产生电压信号 反馈信号的相位，由来自相位比较器的电压信号控制的VCO和在VCO的输出与反馈信号的输入之间的反馈回路中级联连接的分频器组，并且取出时钟 来自分频器组的每个输出的信号。

    Smoke detector
    58.
    发明申请
    Smoke detector 有权
    烟雾探测器

    公开(公告)号：US20050242967A1

    公开(公告)日：2005-11-03

    申请号：US11108747

    申请日：2005-04-19

    申请人： Ryoichi Yamasaki ,  Takeshi Ueno ,  Yasunori Oya

    发明人： Ryoichi Yamasaki ,  Takeshi Ueno ,  Yasunori Oya

    IPC分类号： G01N21/53 ,  G08B17/10 ,  G08B17/107

    CPC分类号： G08B17/107 ,  G08B17/113

    摘要： A dark chamber is adapted to accommodate smoke particles. A photo emitter and a photo detector are disposed in the dark chamber. In a first region, a region where light emitted from the photo emitter passes and a region where the photo detector is capable of detecting light are overlapped, so that light emitted from the photo emitter and scattered by the smoke particles is detected by the photo detector. A photo converger converges light passed through the first region at a second region where is an outside of the first region.

    摘要翻译： 暗室适应烟雾颗粒。 一个光电发射器和一个光电探测器设置在暗室中。 在第一区域中，从光发射器发射的光通过的区域和光检测器能够检测光的区域重叠，使得由光发射器发射并由烟雾颗粒散射的光由光检测器检测 。 照片会聚器在第一区域的外侧的第二区域会聚经过第一区域的光。

    BALANCED AMPLIFIER AND FILTER USING THE SAME
    59.
    发明申请
    BALANCED AMPLIFIER AND FILTER USING THE SAME 失效
    使用平衡放大器和滤波器

    公开(公告)号：US20050146381A1

    公开(公告)日：2005-07-07

    申请号：US11059380

    申请日：2005-02-17

    申请人： Takeshi Ueno ,  Tetsuro Itakura ,  Zdzislaw Czarnul ,  Krystyna Czarnul

    发明人： Takeshi Ueno ,  Tetsuro Itakura ,  Zdzislaw Czarnul ,  Krystyna Czarnul

    IPC分类号： H03F3/45 ,  H03H11/04

    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。