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    Fast response automatic gain control
    2.
    发明授权
    Fast response automatic gain control 失效
    快速响应自动增益控制

    公开(公告)号：US06212244B1

    公开(公告)日：2001-04-03

    申请号：US09005071

    申请日：1998-01-09

    申请人： Sorin Davidovici ,  Emmanuel Kanterakis ,  Izumi Iida ,  Norio Hama ,  Nobuhiko Kenmochi

    发明人： Sorin Davidovici ,  Emmanuel Kanterakis ,  Izumi Iida ,  Norio Hama ,  Nobuhiko Kenmochi

    IPC分类号： H04L2708

    CPC分类号： H04W52/52 ,  H03G3/3052

    摘要： A two-step automatic-gain-control (AGC) loop for use with a receiver. An AGC amplifier amplifies a received signal. From an output signal from the AGC amplifier, a received-signal-strength-indicator (RSSI) circuit generates an RSSI signal proportional to a received-signal-power level of the received signal. An RSSI-mapping circuit has an RSSI-mapping table. From the RSSI signal, the RSSI-mapping circuit, using the RSSI-mapping table, generates an AGC signal. An AGC-storing circuit stores the AGC signal. The AGC amplifier uses the stored-AGC signal to adjust the AGC gain. A converter circuit converts the output signal from the AGC amplifier to an in-phase component and a quadrature-phase component at a processing frequency. The error circuit determines an error signal from the in-phase component and the quadrature-phase component. When the error signal indicates the in-phase component and the quadrature-phase component are high, the integrate-and-dump circuit increments a counter of the integrate-and-dump circuit. When the error signal indicates the in-phase component and the quadrature-phase component are low, the integrate-and-dump circuit decrements the counter of the integrate-and-dump circuit. An AGC-convergence-rate multiplier normalizes an output of the integrate-and-dump circuit, thereby generating a normalized signal. The AGC-storing circuit updates the AGC signal from the normalized signal. From the updated AGC signal, the AGC circuit adjusts the AGC gain.

    摘要翻译： 用于接收机的两步自动增益控制（AGC）回路。 AGC放大器放大接收信号。 从AGC放大器的输出信号，接收信号强度指示器（RSSI）电路产生与接收信号的接收信号功率电平成比例的RSSI信号。 RSSI映射电路具有RSSI映射表。 根据RSSI信号，使用RSSI映射表的RSSI映射电路产生AGC信号。 AGC存储电路存储AGC信号。 AGC放大器使用存储的AGC信号来调整AGC增益。 A转换器电路将来自AGC放大器的输出信号以处理频率转换成同相分量和正交相分量。 误差电路确定来自同相分量和正交相分量的误差信号。 当误差信号表示同相分量且正交相位分量较高时，积分和转储电路会增加积分和转储电路的计数器。 当误差信号表示同相分量并且正交相位分量低时，积分和转储电路使积分和转储电路的计数器递减。 AGC收敛速率乘法器对积分和转储电路的输出进行归一化，从而产生归一化信号。 AGC存储电路从归一化信号更新AGC信号。 AGC电路根据更新的AGC信号调整AGC增益。

    Pulse receiving circuit, pulse receiving method and pulse wireless communication device
    3.
    发明授权
    Pulse receiving circuit, pulse receiving method and pulse wireless communication device 有权
    脉冲接收电路，脉冲接收方式和脉冲无线通信装置

    公开(公告)号：US08036320B2

    公开(公告)日：2011-10-11

    申请号：US12191240

    申请日：2008-08-13

    申请人： Izumi Iida

    发明人： Izumi Iida

    IPC分类号： H04L27/06

    CPC分类号： H04L25/4902 ,  H04B1/71637 ,  H04B1/7174 ,  H04L27/06

    摘要： A pulse receiving circuit which receives a receiving signal from the outside includes: a template pulse generating circuit which generates a first pulse signal and a second pulse signal having phase different from that of the first pulse signal based on a pulse position timing signal; a first multiplying circuit which multiplies the receiving signal by the first pulse signal and outputs a first multiplication signal; a second multiplying circuit which multiplies the receiving signal by the second pulse signal and outputs a second multiplication signal; a first low band pass filtering circuit which extracts low frequency component from frequency components of the first multiplication signal and outputs a first low frequency signal; a second low band pass filtering circuit which extracts low frequency component from frequency components of the second multiplication signal and outputs a second low frequency signal; and an envelope detection circuit which performs envelope calculation by using the first low frequency signal and the second low frequency signal and outputs a detection signal.

    摘要翻译： 从外部接收接收信号的脉冲接收电路包括：模板脉冲发生电路，其基于脉冲位置定时信号产生与第一脉冲信号的相位不同的第一脉冲信号和第二脉冲信号; 第一乘法电路，将接收信号乘以第一脉冲信号并输出​​第一乘法信号; 第二乘法电路，将接收信号乘以第二脉冲信号，并输出第二乘法信号; 第一低通滤波电路，其从所述第一乘法信号的频率分量中提取低频分量，并输出第一低频信号; 第二低通滤波电路，其从所述第二乘法信号的频率分量中提取低频分量，并输出第二低频信号; 以及包络检测电路，其通过使用第一低频信号和第二低频信号进行包络计算，并输出检测信号。

    Burst control pulse generating circuit
    4.
    发明授权
    Burst control pulse generating circuit 有权
    突发控制脉冲发生电路

    公开(公告)号：US07792198B2

    公开(公告)日：2010-09-07

    申请号：US11851068

    申请日：2007-09-06

    申请人： Izumi Iida

    发明人： Izumi Iida

    IPC分类号： H04L27/00

    CPC分类号： H03K5/00006 ,  H03K5/133 ,  H03K5/156 ,  H04L25/4902

    摘要： A burst control pulse generating circuit which generates a pulse signal used to provide communication includes a timing generating circuit containing a ring oscillation circuit which oscillates a periodic signal based on a burst signal for controlling the ON and OFF condition of the communication to output a plurality of timing signals based on the periodic signal, and a pulse generating logic circuit which generates the pulse signal based on the plural timing signals. The burst control pulse generating circuit generates the pulse signal one or more times when the burst signal is in an ON condition, and stops generation of the pulse signal when the burst signal is in an OFF condition.

    摘要翻译： 产生用于提供通信的脉冲信号的脉冲串控制脉冲发生电路包括定时产生电路，其包含环形振荡电路，其基于用于控制通信的ON和OFF状态的突发信号振荡周期性信号，以输出多个 基于周期信号的定时信号，以及基于多个定时信号产生脉冲信号的脉冲产生逻辑电路。 当脉冲串信号处于ON状态时，脉冲串控制脉冲发生电路产生一次或多次脉冲信号，并且当脉冲串信号处于OFF状态时停止产生脉冲信号。

    Wireless communication apparatus
    7.
    发明授权
    Wireless communication apparatus 有权
    无线通信装置

    公开(公告)号：US07627288B2

    公开(公告)日：2009-12-01

    申请号：US11550608

    申请日：2006-10-18

    申请人： Izumi Iida

    发明人： Izumi Iida

    IPC分类号： H04B5/00

    CPC分类号： H04B1/406 ,  H04M1/0214 ,  H04M1/0277

    摘要： An apparatus includes a wireless transmitter modulating a carrier wave by transmission data and wirelessly communicating a signal, a wireless receiver mixing the wireless transmitter signal and a carrier wave and receiving the transmission data, a power carrier wave clock generator provided on one of the wireless transmitter and receiver generating a power carrier wave clock, a non-contact power transmitter transmitting power between the wireless transmitter and receiver through electromagnetic induction from the power carrier wave clock, a carrier wave generator mounted on the one of the wireless transmitter or receiver, and generating a carrier wave based on the power carrier wave clock, and a carrier wave reproducer mounted on the other of the wireless transmitter or receiver, and reproducing a carrier wave having the same frequency as the carrier wave based on a clock having the same frequency as the power carrier wave clock.

    摘要翻译： 一种装置，包括：无线发射机，通过传输数据和无线通信信号调制载波;混合无线发射机信号的无线接收机;载波;接收传输数据;无线发射机;其中一个无线发射机 以及接收器，其生成功率载波时钟，非接触式功率发射器，通过来自所述功率载波时钟的电磁感应，在所述无线发射机和接收机之间发射功率;安装在所述无线发射机或接收机之一上的载波发生器， 基于功率载波时钟的载波和安装在无线发射机或接收机的另一个上的载波再现器，并且基于具有与所述载波频率相同的频率的时钟来再现与载波具有相同频率的载波 电力载波时钟。

    Semiconductor integrated circuit, checking device and method of checking semiconductor integrated circuit
    8.
    发明授权
    Semiconductor integrated circuit, checking device and method of checking semiconductor integrated circuit 失效
    半导体集成电路，检查装置和半导体集成电路检查方法

    公开(公告)号：US07450964B2

    公开(公告)日：2008-11-11

    申请号：US11168073

    申请日：2005-06-28

    申请人： Izumi Iida ,  Makoto Inoguchi

    发明人： Izumi Iida ,  Makoto Inoguchi

    IPC分类号： H04B1/38

    CPC分类号： G01R31/318572 ,  G01R31/3025

    摘要： A semiconductor integrated circuit including: a circuit function section; a bus connected to the circuit function section; an information fetch register for fetching data flowing over the bus; and a radio communicating circuit for wirelessly transmitting the data fetched into the information fetch register.

    摘要翻译： 一种半导体集成电路，包括：电路功能部分; 连接到电路功能部分的总线; 用于获取在总线上流动的数据的信息提取寄存器; 以及无线电通信电路，用于将获取的数据无线发送到信息取出寄存器。

    Electronic device, radio communication terminal and data transmission method
    9.
    发明申请
    Electronic device, radio communication terminal and data transmission method 失效

    公开(公告)号：US20060194607A1

    公开(公告)日：2006-08-31

    申请号：US11362584

    申请日：2006-02-24

    申请人： Izumi Iida

    发明人： Izumi Iida

    IPC分类号： H04M1/00

    CPC分类号： H04B7/26

    摘要： An electronic device includes: a radio transmitting part which transmits, by radio, transmission data having a real transmission data portion and a preamble portion mixed, the preamble portion constituted by pseudo noise signals arranged in a given pattern; a radio receiving part near the radio transmitting part, which receives transmission data transmitted from the radio transmitting part and has a phase-adjusting control part, the phase-adjusting control part adjusting a phase of a received local oscillator output based on the pseudo noise signals of the preamble portion; and a wire communication part which communicates a timing of transmitting the preamble portion in the transmission data transmitted by the radio transmitting part to the radio receiving part by wire.

    Template pulse generating circuit, communication device, and communication method
    10.
    发明授权
    Template pulse generating circuit, communication device, and communication method 有权
    模板脉冲发生电路，通讯装置及通讯方式

    公开(公告)号：US08031809B2

    公开(公告)日：2011-10-04

    申请号：US12038199

    申请日：2008-02-27

    申请人： Izumi Iida

    发明人： Izumi Iida

    IPC分类号： H03K9/00

    CPC分类号： H03K3/66 ,  H04B1/71637 ,  H04B1/7174

    摘要： A template pulse generating circuit that generates a template pulse used for detection of a received pulse in pulse communication includes an output mode switching circuit for switching an output mode in accordance with a supplied control signal between a continuous output mode that continuously outputs the template pulses and an intermittent output mode that intermittently outputs the template pulses so that the template pulse is generated in either one of the continuous output mode and the intermittent output mode.

    摘要翻译： 产生脉冲通信中用于检测接收脉冲的模板脉冲的模板脉冲发生电路包括：输出模式切换电路，用于根据连续输出模板脉冲的连续输出模式和连续输出模板脉冲的连续输出模式切换输出模式;以及 间歇输出模式，间歇地输出模板脉冲，使得在连续输出模式和间歇输出模式中的任一个中产生模板脉冲。