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51. 发明申请

US20100264751A1 FILTER CIRCUIT AND COMMUNICATION APPARATUS 失效
标题翻译：滤波电路及通讯装置
公开(公告)号：US20100264751A1
公开(公告)日：2010-10-21
申请号：US12757744
申请日：2010-04-09
申请人： Sachio Iida , Atsushi Yoshizawa
发明人： Sachio Iida , Atsushi Yoshizawa
IPC分类号： H02M3/06
CPC分类号： H03H19/004 , H03H15/00
摘要： A filter circuit according to the present invention includes a voltage-current conversion unit that converts a voltage signal input to an input end to a current signal, a capacitor group that is made up of a plurality of capacitors, where the current signal output from the voltage-current conversion unit is sequentially input to each capacitor at every cycle, a first switch that connects a set of capacitors to which the current signal is input with each other and adds charges accumulated in the set of capacitors together, and a second switch that connects at least one capacitor of the set of capacitors to an output end after charges are added by the first switch.
摘要翻译：根据本发明的滤波器电路包括将输入到输入端的电压信号转换为电流信号的电压电流转换单元，由多个电容器组成的电容器组，其中从电压电流转换单元在每个周期顺序地输入到每个电容器，第一开关，其将电流信号输入的一组电容器彼此连接并将累积在该组电容器中的电荷加在一起;第二开关，其将将电容器组中的至少一个电容器连接到由第一开关添加电荷之后的输出端。

52. 发明授权

US07636012B2 Charge domain filter device 失效
标题翻译：电荷域滤波器
公开(公告)号：US07636012B2
公开(公告)日：2009-12-22
申请号：US11754763
申请日：2007-05-29
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H03B1/00
CPC分类号： H03H15/00 , H03H19/004
摘要： A charge domain filter device includes a SINC filter with a frequency characteristic expressed by a SINC function, and a bandpass filter connected to an output end of the SINC filter and having a frequency characteristic with a particular center frequency.
摘要翻译：电荷域滤波器装置包括具有由SINC功能表示的频率特性的SINC滤波器和连接到SINC滤波器的输出端并具有特定中心频率的频率特性的带通滤波器。

53. 发明申请

US20090225208A1 Solid-State Image Sensing Device, Amplification Method, and Imaging Apparatus 审中-公开
标题翻译：固态图像感测装置，放大方法和成像装置
公开(公告)号：US20090225208A1
公开(公告)日：2009-09-10
申请号：US12369912
申请日：2009-02-12
申请人： Atsushi Yoshizawa , Sachio Iida
发明人： Atsushi Yoshizawa , Sachio Iida
IPC分类号： H04N5/335
CPC分类号： H04N5/217 , G11C27/04 , H04N5/3577 , H04N5/3742
摘要： A solid-state image sensing device includes a pixel unit that includes pixels, each of pixels outputting the pixel signal to a signal line connected thereto; and an amplifying unit that includes amplifiers connected to the corresponding signal lines. The amplifier includes a first variable capacitance element, a second variable capacitance element, and an input unit that selectively inputs the pixel signal to the first variable capacitance element and the second variable capacitance element. The amplifier sets the capacitances of the first variable capacitance element and the second variable capacitance element to a first value when the pixel signal is input to the first variable capacitance element and the second variable capacitance element. And the amplifier changes the capacitances of the first variable capacitance element and the second variable capacitance element to a second value that is smaller than the first value, thereby amplifying the pixel signal.
摘要翻译：固态图像感测装置包括像素单元，其包括像素，每个像素将像素信号输出到与其连接的信号线; 以及放大单元，其包括连接到相应的信号线的放大器。放大器包括第一可变电容元件，第二可变电容元件和输入单元，其选择性地将像素信号输入到第一可变电容元件和第二可变电容元件。当像素信号被输入到第一可变电容元件和第二可变电容元件时，放大器将第一可变电容元件和第二可变电容元件的电容设置为第一值。并且放大器将第一可变电容元件和第二可变电容元件的电容改变为小于第一值的第二值，从而放大像素信号。

54. 发明授权

US07580689B2 Transmission method, transmitter, reception method, and receiver 有权
标题翻译：传输方式，发射机，接收方式和接收机
公开(公告)号：US07580689B2
公开(公告)日：2009-08-25
申请号：US11488021
申请日：2006-07-18
申请人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
发明人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
IPC分类号： H04B1/18
CPC分类号： H04B1/7176 , H04B1/40 , H04B1/71635 , H04B1/71637
摘要： For the purpose of efficient transmission based on the UWB system, first and second baseband waveforms are generated at a cycle equivalent to an integral multiple of a carrier to have a specified phase difference from each other. The first baseband waveform is multiplied by the carrier and a first transmission data sequence to acquire a first transmission waveform. The second baseband waveform is multiplied by a phase shifted carrier and a second transmission data sequence to acquire a second transmission waveform. The first transmission waveform is mixed with the second transmission waveform to acquire a transmission signal. The transmission signal is transmitted as a π/2 shift BPSK signal to transmit a UWB signal. Selecting the baseband waveforms and the carrier makes it possible to configure the transmission band and easily provide division multiplexing transmission.
摘要翻译：为了基于UWB系统的有效传输的目的，第一和第二基带波形以等于载波的整数倍的周期产生，以具有指定的相位差。将第一基带波形乘以载波和第一传输数据序列以获取第一传输波形。将第二基带波形与相移载波和第二发送数据序列相乘以获取第二发送波形。第一传输波形与第二传输波形混合以获取传输信号。发送信号作为pi / 2移位BPSK信号发送以发送UWB信号。选择基带波形和载波使得可以配置传输频带并轻松提供分路复用传输。

55. 发明申请

US20090135039A1 Switched Capacitor Circuit, Switched Capacitor Filter, and Sigma-Delta A/D Converter 有权
标题翻译：开关电容电路，开关电容滤波器和Sigma-Delta A / D转换器
公开(公告)号：US20090135039A1
公开(公告)日：2009-05-28
申请号：US12273287
申请日：2008-11-18
申请人： Sachio Iida , Atsushi Yoshizawa
发明人： Sachio Iida , Atsushi Yoshizawa
IPC分类号： H03B1/00 , H03M3/00 , H03M1/12 , G06G7/10
CPC分类号： H03H19/004 , H03M3/458
摘要： A switched capacitor circuit includes a capacitor that performs sampling, a first switch that is provided between the capacitor and an input terminal, and a second switch that is provided between the capacitor and an output terminal. The first switch and the second switch receive an input of a clock signal and turn on and off. The capacitor is a variable capacitance element in which the value of the capacitance changes in synchronization with the clock signal.
摘要翻译：开关电容电路包括执行采样的电容器，设置在电容器和输入端子之间的第一开关和设置在电容器和输出端子之间的第二开关。第一开关和第二开关接收时钟信号的输入并接通和断开。电容器是可变电容元件，其中电容值与时钟信号同步地改变。

56. 发明申请

US20080088389A1 Charge Domain Filter Device 失效
标题翻译：充电域过滤设备
公开(公告)号：US20080088389A1
公开(公告)日：2008-04-17
申请号：US11754763
申请日：2007-05-29
申请人： Sachio Iida
发明人： Sachio Iida
IPC分类号： H03H7/03
CPC分类号： H03H15/00 , H03H19/004
摘要： A charge domain filter device includes a SINC filter with a frequency characteristic expressed by a SINC function, and a bandpass filter connected to an output end of the SINC filter and having a frequency characteristic with a particular center frequency.
摘要翻译：电荷域滤波器装置包括具有由SINC功能表示的频率特性的SINC滤波器和连接到SINC滤波器的输出端并具有特定中心频率的频率特性的带通滤波器。

57. 发明申请

US20070071115A1 Frequency combining apparatus and frequency combining method 失效
标题翻译：频率组合装置和频率组合方法
公开(公告)号：US20070071115A1
公开(公告)日：2007-03-29
申请号：US10575082
申请日：2004-10-08
申请人： Mitsuhiro Suzuki , Sachio Iida
发明人： Mitsuhiro Suzuki , Sachio Iida
IPC分类号： H04K1/10
CPC分类号： H04B1/7136 , H04B1/71635 , H04B2001/71365 , H04L27/18
摘要： A reference frequency of 4224 MHz is divided into ½ to obtain a sampling frequency of 2112 MHz, and further the frequency division into ½ is sequentially performed and the values of three bits outputted by the ½, ¼ and ⅛ frequency division are decoded in response to frequency selection. From one set of nonlinear 2-bit DA converters which output amplitudes {−1.7, −0.7, 0.7, 1.7} using these decoded values as input, complex amplitudes corresponding to eight phases in a complex plane are outputted, so that complex sine waves are generated. Using these complex sine waves, the frequency switching is performed. Center frequencies of respective bands can be obtained without a phase error or an amplitude error.
摘要翻译： 4224MHz的参考频率被分成1/2以获得2112MHz的采样频率，并且进一步分频成1/2，并且由1/2，1/4和1/8分频输出的三位的值被解码为响应频率选择。从使用这些解码值作为输入输出幅度{-1.7，-0.7,0.7,1.7}的一组非线性2位DA转换器，输出对应于复平面中的八个相位的复振幅，使得复数正弦波为生成。使用这些复杂的正弦波，进行频率切换。可以在没有相位误差或振幅误差的情况下获得各个频带的中心频率。

58. 发明申请

US20050009557A1 Transmission method, transmitter, reception method, and receiver 有权
标题翻译：传输方式，发射机，接收方式和接收机
公开(公告)号：US20050009557A1
公开(公告)日：2005-01-13
申请号：US10764448
申请日：2004-01-27
申请人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
发明人： Katsumi Watanabe , Sachio Iida , Mitsuhiro Suzuki
IPC分类号： H04J13/00 , H04B1/40 , H04B1/707 , H04B1/717 , H04B1/44 , H04B1/02 , H04B1/04 , H04B1/00
CPC分类号： H04B1/7176 , H04B1/40 , H04B1/71635 , H04B1/71637
摘要： For the purpose of efficient transmission based on the UWB system, first and second baseband waveforms are generated at a cycle equivalent to an integral multiple of a carrier to have a specified phase difference from each other. The first baseband waveform is multiplied by the carrier and a first transmission data sequence to acquire a first transmission waveform. The second baseband waveform is multiplied by a phase shifted carrier and a second transmission data sequence to acquire a second transmission waveform. The first transmission waveform is mixed with the second transmission waveform to acquire a transmission signal. The transmission signal is transmitted as a π/2 shift BPSK signal to transmit a UWB signal. Selecting the baseband waveforms and the carrier makes it possible to configure the transmission band and easily provide division multiplexing transmission.
摘要翻译：为了基于UWB系统的有效传输的目的，第一和第二基带波形以等于载波的整数倍的周期产生，以具有指定的相位差。将第一基带波形乘以载波和第一传输数据序列以获取第一传输波形。将第二基带波形与相移载波和第二发送数据序列相乘以获取第二发送波形。第一传输波形与第二传输波形混合以获取传输信号。发送信号作为pi / 2移位BPSK信号发送以发送UWB信号。选择基带波形和载波使得可以配置传输频带并轻松提供分路复用传输。

59. 发明授权

US5374896A Distortion compensating circuit of high-frequency power amplifier 失效
标题翻译：高频功率放大器失真补偿电路
公开(公告)号：US5374896A
公开(公告)日：1994-12-20
申请号：US171660
申请日：1993-12-21
申请人： Hideaki Sato , Sachio Iida
发明人： Hideaki Sato , Sachio Iida
IPC分类号： H03F1/32 , H03G3/20 , H03G3/30 , H03G5/16 , H03F1/30 , H03G3/32
CPC分类号： H03G3/3042 , H03F1/3247
摘要： A high-frequency power amplifier in which the negative feedback control system linearity is maintained and non-linear distortion is stably compensated has: a variable gain circuit, disposed as a prestage of the power amplifier, in which the control voltage vs. gain characteristic is an inverse logarithm characteristic, which performs variable control on the level of the input signal supplied to the power amplifier; a gain detecting circuit, which detects the combined gain of the high frequency power amplifier and the variable gain circuit; and a loop filter, which supplies the output signal of this gain detecting circuit to the variable gain circuit as a control voltage. This gain detecting circuit includes: a first logarithmic convertor circuit, which performs logarithmic conversion on an envelope detection signal of the signal inputted into the variable gain circuit; a second logarithmic convertor circuit, which performs logarithmic conversion on an envelope detection signal of the output signal of the high-frequency power amplifier; and a subtraction circuit, which outputs the differential, or subtraction, signal of the output signals of the first and second logarithmic conversion circuits.
摘要翻译：保持负反馈控制系统线性度并且稳定地补偿非线性失真的高频功率放大器具有设置为功率放大器的前置功率的可变增益电路，其中控制电压对增益特性为反对数特性，对提供给功率放大器的输入信号的电平进行可变控制; 增益检测电路，其检测高频功率放大器和可变增益电路的组合增益; 以及环路滤波器，其将该增益检测电路的输出信号作为控制电压提供给可变增益电路。该增益检测电路包括：对输入到可变增益电路的信号的包络检测信号进行对数转换的第一对数转换电路; 第二对数转换器电路，对高频功率放大器的输出信号的包络检测信号进行对数转换; 以及减法电路，其输出第一和第二对数转换电路的输出信号的差分或减法信号。

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