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1. 发明申请

US20070286102A1 Wireless Communication System Capable of Switching Protocol 审中-公开
标题翻译：无线通信系统能够开关协议
公开(公告)号：US20070286102A1
公开(公告)日：2007-12-13
申请号：US10587181
申请日：2004-03-05
申请人： Isao Shimokawa , Masayuki Miyazaki , Akira Maeki , Masaaki Shida
发明人： Isao Shimokawa , Masayuki Miyazaki , Akira Maeki , Masaaki Shida
IPC分类号： H04B7/00
CPC分类号： H04W74/08 , H04W36/14 , H04W48/18 , H04W52/0206 , H04W52/0216 , H04W52/0219 , H04W74/006 , H04W80/00 , H04W88/06 , H04W92/10
摘要： A wireless communication system comprising a management server, base stations, and a plurality of node terminals, wherein a wireless communication protocol to be applied is switched dynamically based on such indices as but error, packet error rate, the number of times of retransmitting packets, throughput/power consumption that may occur between each base station and nodes.
摘要翻译：一种无线通信系统，包括管理服务器，基站和多个节点终端，其中，基于诸如错误，分组错误率，重传分组的次数等指标动态地切换要应用的无线通信协议，每个基站和节点之间可能发生的吞吐量/功耗。

2. 发明申请

US20080037665A1 RADIO COMMUNICATION APPARATUS FOR CONTROLLING BANDWIDTH OF CHANNEL 审中-公开
标题翻译：用于控制通道带宽的无线电通信设备
公开(公告)号：US20080037665A1
公开(公告)日：2008-02-14
申请号：US11734358
申请日：2007-04-12
申请人： Akira MAEKI , Masayuki Miyazaki
发明人： Akira MAEKI , Masayuki Miyazaki
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04W16/16
摘要： Provided is a wireless communication apparatus for communicating by a single channel using ultra wide band impulse signals, being configured to: detect the signal transmitted by other wireless systems in a frequency band where the signal can be transmitted; determine a transmission band avoiding the band in which the signal has been detected; and control the bandwidth of the channel so that the transmission signals may be included in the determined transmission band.
摘要翻译：提供一种用于通过使用超宽带脉冲信号的单个信道进行通信的无线通信装置，其被配置为：在可以发送信号的频带中检测由其他无线系统发送的信号; 确定避免已经检测到信号的频带的传输频带; 并且控制信道的带宽，使得传输信号可以被包括在确定的传输频带中。

3. 发明申请

US20060197618A1 Pulse generator and the transmitter with a pulse generator 有权
标题翻译：脉冲发生器和带脉冲发生器的变送器
公开(公告)号：US20060197618A1
公开(公告)日：2006-09-07
申请号：US11334573
申请日：2006-01-19
申请人： Takayasu Norimatsu , Ryosuke Fujiwara , Masaru Kokubo , Akira Maeki
发明人： Takayasu Norimatsu , Ryosuke Fujiwara , Masaru Kokubo , Akira Maeki
IPC分类号： H03B29/00
CPC分类号： H04B1/7174 , H04L25/03834
摘要： The object is simplification of a configuration in a pulse generator for UWB transmission, lower power consumption, and suppression of LO leakage by nonuse of the LO signal. A pulse generator comprises: a clock generator (CLK) for giving clock of a predetermined period; a delay circuit (DLY) equipped with a function of controlling a delay time and for delaying the clock; a square-wave pulse generation circuit (SWPG), by receiving information being spread by a spread code, modulates phases of square wave pulses that have a pulse width corresponding to a differential delay for one stage of the delay circuit by comparing the signals outputted from the delay circuit and having different delay times, and outputs the square wave pulses; and an amplitude control unit (AMPC) that outputs an impulse sequence having the pulse width of the square wave in a predetermined amplitude by receiving a square wave pulse sequence outputted from the square-wave pulse generation circuit at different timings, and combines the impulses; and outputs pulses that have a predetermined envelope form.
摘要翻译：目的是简化用于UWB传输的脉冲发生器中的配置，降低功耗，并且通过不使用LO信号来抑制LO泄漏。脉冲发生器包括：用于给定预定周期的时钟的时钟发生器（CLK）; 具有控制延迟时间和延迟时钟的功能的延迟电路（DLY）; 方波脉冲发生电路（SWPG）通过接收由扩展码进行扩展的信息，通过比较输出的信号来调制具有对应于延迟电路的一级的差分延迟的脉冲宽度的方波脉冲的相位延迟电路并具有不同的延迟时间，并输出方波脉冲; 以及振幅控制单元（AMPC），通过在不同的定时接收从方波脉冲发生电路输出的方波脉冲序列，输出具有预定振幅的方波脉冲宽度的脉冲序列，并组合脉冲; 并输出具有预定包络形式的脉冲。

4. 发明授权

US06566956B2 High frequency power amplifier 失效
标题翻译：高频功率放大器
公开(公告)号：US06566956B2
公开(公告)日：2003-05-20
申请号：US09810547
申请日：2001-03-19
申请人： Masami Ohnishi , Akira Maeki
发明人： Masami Ohnishi , Akira Maeki
IPC分类号： H03F368
CPC分类号： H03F3/607 , H03F2200/372
摘要： A high frequency power amplifier is provided that prevents loop oscillation at a low frequency caused by a closed loop formed between combined semiconductor devices. Previously, coupled-line directional couplers or capacitors for low frequency rejection have been used to prevent the closed loop from being formed. Also, a circuit including a resistance component required for attenuating self-oscillation has been provided. Therefore, to prevent both loop oscillation and self oscillation, two circuits have been required. Accordingly, a high frequency power amplifier is provided with a low frequency prevention circuit that attenuates the passing of each frequency of loop oscillation and self oscillation to each signal line divided by a power divider. Thus, the two circuits respectively required for preventing the loop oscillation and self oscillation of a travelling wave combine type amplifier can be formed by one low frequency prevention circuit.
摘要翻译：提供了一种高频功率放大器，其防止由组合的半导体器件之间形成的闭环引起的低频环路振荡。以前，已经使用用于低频抑制的耦合线路定向耦合器或电容器来防止形成闭环。此外，还提供了包括衰减自振荡所需的电阻分量的电路。因此，为了防止环路振荡和自振荡，需要两个电路。因此，高频功率放大器设置有低频防止电路，其衰减每个由功率分配器划分的信号线的环路振荡和自振荡的每个频率的通过。因此，可以通过一个低频防止电路来形成分别用于防止行波组合放大器的环路振荡和自振荡所需的两个电路。

5. 发明授权

US08030995B2 Power circuit used for an amplifier 有权
标题翻译：用于放大器的电源电路
公开(公告)号：US08030995B2
公开(公告)日：2011-10-04
申请号：US12644833
申请日：2009-12-22
申请人： Yoichi Okubo , Manabu Nakamura , Junya Dosaka , Yasuhiro Takeda , Taizo Ito , Naoki Hongo , Taizo Yamawaki , Takashi Kawamoto , Akira Maeki
发明人： Yoichi Okubo , Manabu Nakamura , Junya Dosaka , Yasuhiro Takeda , Taizo Ito , Naoki Hongo , Taizo Yamawaki , Takashi Kawamoto , Akira Maeki
IPC分类号： H03G3/00
CPC分类号： H03F1/0227 , H03F3/19 , H03F2200/451 , H03F2200/462
摘要： A power circuit used for an amplifier, which includes an amplifier provided with a linear amplifier serving as a voltage source, a DC/DC converter serving as a current source, a hysteresis comparator controlling the DC/DC converter, and a current detector detecting output current from the linear amplifier to output the detected output current to the hysteresis comparator; and a switching restricting device for restricting a switching interval in the DC/DC converter such that the switching interval is not equal to or less than a constant time or is not shorter than the constant time.
摘要翻译：用于放大器的电源电路，其包括放大器，该放大器设置有用作电压源的线性放大器，用作电流源的DC / DC转换器，控制DC / DC转换器的滞环比较器以及电流检测器检测输出电流从线性放大器输出检测输出电流到滞后比较器; 以及用于限制DC / DC转换器中的切换间隔使得切换间隔不等于或小于恒定时间或不短于恒定时间的切换限制装置。

6. 发明申请

US20070288995A1 Authentication system for authenticating based on measured distance and exchanged identifier 审中-公开
标题翻译：基于测量距离和交换的标识符进行认证的认证系统
公开(公告)号：US20070288995A1
公开(公告)日：2007-12-13
申请号：US11785377
申请日：2007-04-17
申请人： Takahide Terada , Akira Maeki , Masayuki Miyazaki
发明人： Takahide Terada , Akira Maeki , Masayuki Miyazaki
IPC分类号： H04L9/32
CPC分类号： H04W12/06 , H04L63/08 , H04L63/107 , H04W8/26 , H04W24/00 , Y02D70/164 , Y02D70/20
摘要： To provide compact, low power consumption authenticating devices and authentication target device, and capable of simultaneous communication for acquiring an identifier, and acquiring distance information. Provided is an authentication system comprising an authenticating device and an authentication target device which communicates by using ultra wide band impulse signals, wherein the authentication system measures the distance between the authenticating device and the authentication target device by using ultra wide band impulse signal to exchange identification information of the authenticating device and identification information of the authentication target device between each device, wherein the authenticating device authenticates the authentication target device based on a combination of the measured distance between the authenticating device and the authentication target device, and the exchanged identification information of the authentication target device, and wherein the authenticating device generate control signal to control a control target based on the authentication results.
摘要翻译：提供紧凑，低功耗的认证装置和认证目标装置，并且能够同时进行通信以获取标识符，并获取距离信息。提供了一种认证系统，其包括通过使用超宽带脉冲信号进行通信的认证装置和认证对象装置，其中，认证系统通过使用超宽带脉冲信号来测量认证装置与认证对象装置之间的距离，以交换识别认证装置的信息以及认证对象装置在每个装置之间的识别信息，其中认证装置基于认证装置与认证对象装置之间的测量距离的组合来认证认证目标装置，以及所交换的识别信息认证目标设备，并且其中所述认证设备基于所述认证结果生成控制信号以控制控制目标。

7. 发明授权

US07170252B2 Location aware automata 失效
标题翻译：位置感知自动机
公开(公告)号：US07170252B2
公开(公告)日：2007-01-30
申请号：US10626123
申请日：2003-07-23
申请人： Akira Maeki
发明人： Akira Maeki
IPC分类号： G05D1/00 , B25J19/02
CPC分类号： G05D1/0274 , A47L2201/04 , G05D1/0225 , G05D1/028 , G05D2201/0203 , G05D2201/0215
摘要： An automaton configured to perform a task comprises a communication interface to communicate positional information with one or more anchor points provided within a given environment. The positional information enables generation of mapping information of the given environment. A motor provides the automation with mobility. A memory stores the mapping information. A controller controls the motor to enable the automaton to perform the task in the given environment using a first task route that has been generated using the mapping information.
摘要翻译：被配置为执行任务的自动机包括通信接口，用于将位置信息与给定环境内提供的一个或多个锚点进行通信。位置信息使得能够生成给定环境的映射信息。电机为自动化提供了移动性。存储器存储映射信息。控制器控制电动机使得自动机能够使用已使用映射信息生成的第一任务路线在给定环境中执行任务。

8. 发明申请

US20100171553A1 POWER CIRCUIT 有权
标题翻译：电源电路
公开(公告)号：US20100171553A1
公开(公告)日：2010-07-08
申请号：US12644833
申请日：2009-12-22
申请人： Yoichi Okubo , Manabu Nakamura , Junya Dosaka , Yasuhiro Takeda , Taizo Ito , Naoki Hongo , Taizo Yamawaki , Takashi Kawamoto , Akira Maeki
发明人： Yoichi Okubo , Manabu Nakamura , Junya Dosaka , Yasuhiro Takeda , Taizo Ito , Naoki Hongo , Taizo Yamawaki , Takashi Kawamoto , Akira Maeki
IPC分类号： H03G1/00
CPC分类号： H03F1/0227 , H03F3/19 , H03F2200/451 , H03F2200/462
摘要： A power circuit used for an amplifier, which includes an amplifier provided with a linear amplifier serving as a voltage source, a DC/DC converter serving as a current source, a hysteresis comparator controlling the DC/DC converter, and a current detector detecting output current from the linear amplifier to output the detected output current to the hysteresis comparator; and a switching restricting means for restricting a switching interval in the DC/DC converter such that the switching interval is not equal to or less than a constant time or is not shorter than the constant time.
摘要翻译：用于放大器的电源电路，其包括放大器，该放大器设置有用作电压源的线性放大器，用作电流源的DC / DC转换器，控制DC / DC转换器的滞环比较器以及电流检测器检测输出电流从线性放大器输出检测输出电流到滞后比较器; 以及切换限制装置，用于限制DC / DC转换器中的切换间隔，使得切换间隔不等于或小于恒定时间或不短于恒定时间。

9. 发明授权

US07664161B2 Pulse generator and the transmitter with a pulse generator 有权
标题翻译：脉冲发生器和带脉冲发生器的变送器
公开(公告)号：US07664161B2
公开(公告)日：2010-02-16
申请号：US11334573
申请日：2006-01-19
申请人： Takayasu Norimatsu , Ryosuke Fujiwara , Masaru Kokubo , Akira Maeki
发明人： Takayasu Norimatsu , Ryosuke Fujiwara , Masaru Kokubo , Akira Maeki
IPC分类号： H04B1/00
CPC分类号： H04B1/7174 , H04L25/03834
摘要： A pulse generator for UWB transmission, lower power consumption, and suppression of LO leakage by nonuse of the LO signal. The pulse generator includes a clock generator (CLK) for giving clock of a predetermined period; a delay circuit (DLY) equipped with a function of controlling a delay time and for delaying the clock; a square-wave pulse generation circuit (SWPG) that receives information being spread by a spread code and modulates phases of square wave pulses that have a pulse width corresponding to a differential delay for one stage of the delay circuit; and an amplitude control unit (AMPC) that outputs an impulse sequence having the pulse width of the square wave in a predetermined amplitude and combines the impulses; and outputs pulses that have a predetermined envelope form.
摘要翻译：用于UWB传输的脉冲发生器，较低的功耗，并且通过不使用LO信号来抑制LO泄漏。脉冲发生器包括用于给定预定周期的时钟的时钟发生器（CLK）; 具有控制延迟时间和延迟时钟的功能的延迟电路（DLY）; 接收由扩展码扩展的信息的方波脉冲发生电路（SWPG），并且对延迟电路的一级具有对应于差分延迟的脉冲宽度的方波脉冲的相位进行调制; 以及幅度控制单元（AMPC），其以预定的幅度输出具有所述方波的脉冲宽度的脉冲序列并组合所述脉冲; 并输出具有预定包络形式的脉冲。

10. 发明申请

US20060140253A1 Ultra-wideband transmitter and transceiver using the same 审中-公开
标题翻译：超宽带发射机和收发器使用相同
公开(公告)号：US20060140253A1
公开(公告)日：2006-06-29
申请号：US11316729
申请日：2005-12-27
申请人： Akira Maeki , Ryosuke Fujiwara , Masaaki Shida , Masaru Kokubo , Takayasu Norimatsu
发明人： Akira Maeki , Ryosuke Fujiwara , Masaaki Shida , Masaru Kokubo , Takayasu Norimatsu
IPC分类号： H04B1/707 , H04B1/69
CPC分类号： H04B1/7174
摘要： An ultra-wideband transmitter is provided which can reduce a leak of a local signal into a transmitted signal with a pulse train output from an antenna in UWB-IR communication. The transmitter comprises a pulse generator 0140 for generating a pulse signal having a pulse train of pulses produced intermittently according to data to be transmitted, an oscillator 0120 for producing a local signal, a frequency converter 0130 to which the pulse signal output from the pulse generator and the local signal output from the oscillator are input, and for frequency-converting the pulse signal to output a RF signal, an amplifier 0110 for amplifying the RF signal output from the frequency converter, and an antenna 0000 for emitting the RF signal output from the amplifier in the air. In a period corresponding to a pause period of the pulses produced intermittently, a leak of the local signal into the RF signal output from the antenna is reduced using a control signal 0300.
摘要翻译：提供了一种超宽带发射器，其可以通过在UWB-IR通信中从天线输出的脉冲串来减少本地信号泄漏到发射信号中。发射机包括脉冲发生器0140，用于根据要发射的数据产生具有间歇产生的脉冲脉冲串的脉冲信号;振荡器0120，用于产生本地信号;频率转换器0130，从脉冲发生器输出的脉冲信号并输入从振荡器输出的本地信号，为了对脉冲信号进行频率转换以输出RF信号，放大器0110用于放大从频率转换器输出的RF信号，以及用于发射RF信号的天线0000 放大器在空气中。在对应于间歇产生的脉冲的暂停时段的时间段内，使用控制信号0300，将本地信号的泄漏从天线输出的RF信号中减少。

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