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1. 发明申请

US20130114622A1 BLOCK ACKNOWLEDGEMENT FOR WIRELESS COMMUNICATION METHODS, APPARATUSES AND SYSTEMS 有权
标题翻译：无线通信方法，设备和系统的块确认
公开(公告)号：US20130114622A1
公开(公告)日：2013-05-09
申请号：US13293021
申请日：2011-11-09
申请人： Marzieh VEYSEH , Ryosuke Fujiwara
发明人： Marzieh VEYSEH , Ryosuke Fujiwara
IPC分类号： H04L12/413 , H04L12/403
CPC分类号： H04L12/6418
摘要： Systems and methods for reducing overhead by using block acknowledgment with an all polling technique while attempting to meet latency and QoS requirements. Each node transmits a number of packets upon receiving a polling message. The Access Point (AP) then replies with a Block Acknowledgement (BlockAck), which is combined with a subsequent polling message and contains a bitmap that indicates 1 for a successfully received packet and 0 for a failed reception.
摘要翻译：在尝试满足延迟和QoS要求的同时，通过使用全部轮询技术的块确认来减少开销的系统和方法。每个节点在接收到轮询消息时发送多个分组。接入点（AP）然后使用块确认（BlockAck）进行回复，该确认与后续轮询消息组合，并且包含指示成功接收到的分组为1的位图，以及用于失败接收的位图。

2. 发明授权

US08289992B2 Wireless sensor-network system, sensing terminal node, and base station 有权
标题翻译：无线传感器网络系统，感应终端节点和基站
公开(公告)号：US08289992B2
公开(公告)日：2012-10-16
申请号：US12604682
申请日：2009-10-23
申请人： Ryosuke Fujiwara , Masayuki Miyazaki
发明人： Ryosuke Fujiwara , Masayuki Miyazaki
IPC分类号： H04J3/00
CPC分类号： H04L67/12
摘要： To correct a sensor data acquisition time with a simple hardware configuration, provided is a wireless sensor-network system including: a base station; and a plurality of sensing terminal nodes, the base station transmitting a beacon at predetermined intervals to the plurality of sensing terminal nodes, the plurality of sensing terminal nodes measuring data and transmitting, based on a reception of the beacon transmitted from the base station, the sensor data thus obtained to the base station, in which the plurality of sensing terminal nodes obtain, based on an internal clock, a time at which the beacon is received and transmit the time to the base station, and the base station corrects, based on the reception time transmitted from each of the plurality of sensing terminal nodes, the sensor data acquisition time.
摘要翻译：为了通过简单的硬件配置来校正传感器数据采集时间，提供了一种无线传感器网络系统，包括：基站; 以及多个感测终端节点，所述基站以预定间隔向所述多个感测终端节点发送信标，所述多个感测终端节点基于从所述基站发送的信标的接收来测量数据并进行发送，如此获得的传感器数据，其中多个感测终端节点根据内部时钟获取接收信标的时间并向基站发送时间到基站，基站根据从多个感测终端节点中的每一个发送的接收时间，传感器数据获取时间。

3. 发明授权

US07830953B2 Receiving apparatus, communication apparatus and control apparatus using the same 有权
标题翻译：接收装置，通信装置及使用其的控制装置
公开(公告)号：US07830953B2
公开(公告)日：2010-11-09
申请号：US11598687
申请日：2006-11-14
申请人： Ryosuke Fujiwara , Tatsuo Nakagawa , Masayuki Miyazaki
发明人： Ryosuke Fujiwara , Tatsuo Nakagawa , Masayuki Miyazaki
IPC分类号： H04B1/06
CPC分类号： H04L7/0058 , H04B1/7183 , H04L7/10
摘要： The present invention conducts the initial synchronization acquisition of the rapid and high precision ultra-wideband signal without complicatedness of hardware and increase in power consumption. For this purpose, a communication apparatus for exchanging information with an intermittent pulse train signal searches all phases among the pulses in the predetermined search resolution in the process to acquire initial synchronization of the input pulse, estimates the region where the peak phase of the largest output value exists, narrows the region where the peak phase exists up to the predetermined range by repeating the search for all phases in the estimated region in the next step, and conducts acquisition of detailed synchronization in the estimated region. In every step, the threshold value for judging existence of signal or a gain in the analog circuit is controlled for each step. Moreover, the search resolution is set coarse for estimation of the peak phase and set fine for acquisition of detailed synchronization.
摘要翻译：本发明对快速高精度超宽带信号进行初始同步采集，无需硬件复杂度和功耗增加。为此，用于与间歇脉冲串信号交换信息的通信装置在获取输入脉冲的初始同步的处理中在预定搜索分辨率的脉冲之中搜索所有相位，估计最大输出的峰值相位的区域存在，通过在下一步骤中重复对估计区域中的所有相位的搜索，将峰值相位存在的区域变窄到预定范围，并且在估计区域中进行详细同步的获取。在每个步骤中，对于每个步骤控制用于判断信号存在的阈值或模拟电路中的增益。此外，搜索分辨率被设置为粗略用于估计峰值相位并且设置为精细以用于获取详细同步。

4. 发明申请

US20100103986A1 Receiver 失效
公开(公告)号：US20100103986A1
公开(公告)日：2010-04-29
申请号：US12654659
申请日：2009-12-29
申请人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
发明人： Tatsuo Nakagawa , Ryosuke Fujiwara , Masayuki Miyazaki , Goichi Ono
IPC分类号： H04B1/707
CPC分类号： H04B1/71637
摘要： With the objective of enhancing receiving performance of a receiver with respect to pulse signals spread by spread codes, the receiver comprises an RF front-end section which performs amplification, an AD converter section which AD-converts signals outputted from the RF front-end section, a baseband section which inversely spreads the output of the AD converter section and performs signal detection and demodulation thereon, a reception environment measuring section which measures reception environment using the input signals of the baseband section, and a parameter setting section which sets parameters for respective parts on the basis of signals outputted from the reception environment measuring section. The parameter setting section sets the parameters for the respective parts to the optimum according to the environmental condition measured by the reception environment measuring section.

5. 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。

6. 发明申请

US20080232297A1 Node location method, node location system and server 审中-公开
标题翻译：节点定位方法，节点定位系统和服务器
公开(公告)号：US20080232297A1
公开(公告)日：2008-09-25
申请号：US12068291
申请日：2008-02-05
申请人： Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04B7/185
CPC分类号： G01S5/06 , H04W24/00 , H04W48/08 , H04W64/00 , H04W88/08
摘要： A node location system for detecting a node by receiving two or more access points. The node location system includes a node, a reference station, multiple access points, a server, and a network. After receiving a location signal, the reference station sends a reference signal, and the access points receive a position measurement signal and a reference signal, and detects a specified pattern from the received location signal and reference signal, and measures the time from detecting the specified pattern from the location signal until detecting the time from the reference signal, and sends the signal-receive-time information including that measured time to the server, and the server calculates the difference between the time the reference station received the location signal and the time that the access points received the location signal, and then calculates the node position based on this calculated differential.
摘要翻译：一种用于通过接收两个或多个接入点来检测节点的节点定位系统。节点定位系统包括节点，参考站，多个接入点，服务器和网络。在接收到位置信号后，参考站发送参考信号，接入点接收位置测量信号和参考信号，并从接收到的位置信号和参考信号中检测出指定的模式，并测量从指定的从位置信号发送图案，直到从参考信号检测到时间，并将包含该测量时间的信号接收时间信息发送到服务器，并且服务器计算参考站接收位置信号的时间与时间之间的差接收点接收位置信号，然后根据该计算的差分计算节点位置。

7. 发明申请

US20080075151A1 RECEIVER, RECEIVER FOR POSITIONING SYSTEM USING THE SAME, AND POSITIONING METHOD 有权
标题翻译：接收器，使用它的定位系统的接收器和定位方法
公开(公告)号：US20080075151A1
公开(公告)日：2008-03-27
申请号：US11767560
申请日：2007-06-25
申请人： Ryosuke FUJIWARA , Kenichi Mizugaki , Masayuki Miyazaki
发明人： Ryosuke FUJIWARA , Kenichi Mizugaki , Masayuki Miyazaki
IPC分类号： H04B1/707 , G01C21/00
CPC分类号： G01S5/0289 , G01S5/0215 , H04W64/00 , Y02D70/142
摘要： An invention for estimating the first path of an arrival signal by a method and device with a simple structure and lower power consumption. In this method, the nominal pulse repetition frequency or its integer multiple are A/D converted at a frequency less than the multiplicative inverse of the pulse width, the AD conversion timing is offset by time resolution Δt and the receive signal measured, data stored in a RAM, and the first path output time is estimated based on sequentially rearranging of the stored waveform data.
摘要翻译：一种用于通过具有简单结构和较低功耗的方法和装置来估计到达信号的第一路径的发明。在该方法中，标称脉冲重复频率或其整数倍以小于脉冲宽度的乘法反相的频率进行A / D转换，AD转换定时由时间分辨率Deltat和测量的接收信号偏移，存储在 RAM，并且基于所存储的波形数据的顺序重新排列来估计第一路径输出时间。

8. 发明授权

US07321575B2 Node position measuring system 有权
标题翻译：节点位置测量系统
公开(公告)号：US07321575B2
公开(公告)日：2008-01-22
申请号：US11293215
申请日：2005-12-05
申请人： Kenichi Mizugaki , Ryosuke Fujiwara
发明人： Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04Q7/00
CPC分类号： G01S5/021 , G01S5/06
摘要： A node position measuring system according to this invention includes a node, a reference station, base stations, a server that calculates a position of the node, and a network. The reference station includes a positioning signal reception module and a reference signal generation module that transmits a reference signal after the positioning signal reception module receives the positioning signal. Each of the base stations includes a signal reception module, a reception time measuring module that detects specific patterns from the positioning signal and the reference signal received by the signal reception module to measure a detection time, and a communication module that transmits time information, which is generated from the time measured by the reception time measuring module, to the server. The server includes a position calculation module that calculates the position of the node based on the time information transmitted from the base station.
摘要翻译：根据本发明的节点位置测量系统包括节点，参考站，基站，计算节点的位置的服务器和网络。参考站包括定位信号接收模块和在定位信号接收模块接收到定位信号之后发送参考信号的参考信号产生模块。每个基站包括信号接收模块，接收时间测量模块，其根据定位信号和由信号接收模块接收的参考信号检测特定模式以测量检测时间;以及通信模块，其传送时间信息，其中从由接收时间测量模块测量的时间生成到服务器。服务器包括基于从基站发送的时间信息来计算节点的位置的位置计算模块。

9. 发明申请

US20070116104A1 Receiving apparatus, communication apparatus and control apparatus using the same 有权
标题翻译：接收装置，通信装置及使用其的控制装置
公开(公告)号：US20070116104A1
公开(公告)日：2007-05-24
申请号：US11598687
申请日：2006-11-14
申请人： Ryosuke Fujiwara , Tatsuo Nakagawa , Masayuki Miyazaki
发明人： Ryosuke Fujiwara , Tatsuo Nakagawa , Masayuki Miyazaki
IPC分类号： H04B1/00 , H04L7/00
CPC分类号： H04L7/0058 , H04B1/7183 , H04L7/10
摘要： The present invention conducts the initial synchronization acquisition of the rapid and high precision ultra-wideband signal without complicatedness of hardware and increase in power consumption. For this purpose, a communication apparatus for exchanging information with an intermittent pulse train signal searches all phases among the pulses in the predetermined search resolution in the process to acquire initial synchronization of the input pulse, estimates the region where the peak phase of the largest output value exists, narrows the region where the peak phase exists up to the predetermined range by repeating the search for all phases in the estimated region in the next step, and conducts acquisition of detailed synchronization in the estimated region. In every step, the threshold value for judging existence of signal or a gain in the analog circuit is controlled for each step. Moreover, the search resolution is set coarse for estimation of the peak phase and set fine for acquisition of detailed synchronization.
摘要翻译：本发明对快速高精度超宽带信号进行初始同步采集，无需硬件复杂度和功耗增加。为此，用于与间歇脉冲串信号交换信息的通信装置在获取输入脉冲的初始同步的处理中在预定搜索分辨率的脉冲之中搜索所有相位，估计最大输出的峰值相位的区域存在，通过在下一步骤中重复对估计区域中的所有相位的搜索，将峰值相位存在的区域变窄到预定范围，并且在估计区域中进行详细同步的获取。在每个步骤中，对于每个步骤控制用于判断信号存在的阈值或模拟电路中的增益。此外，搜索分辨率被设置为粗略用于估计峰值相位并且设置为精细以用于获取详细同步。

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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