公开(公告)号：US20120210167A1

公开(公告)日：2012-08-16

申请号：US13371560

申请日：2012-02-13

申请人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

发明人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

IPC分类号： G06F11/14 ,  H04W24/00

CPC分类号： H04L1/1854 ,  H04L1/1838 ,  H04L1/24 ,  H04W28/04

摘要： A method for fast and efficient data downloading in wireless communications. The method includes ways to download file data of a large size from a server (access point) to a user's client (mobile device) at high speed and efficiency by using both mmWave wireless communication and conventional wireless communication (WiFi, 3G, etc.). A server transmits packetized file data to a client. The file data is transmitted as data packets via mmWave. In parallel, the server transmits check packets (roll-call packets) corresponding to the data packets. As a test at the time of establishing links, the latency for each communication line is measured. The receiver side, upon completion of receiving the check packets, checks whether their corresponding mmWave packets have arrived. If any corresponding mmWave packet has not arrived, it is determined that the mmWave packet has been lost and a retransmission request is immediately returned to the server via WiFi.

摘要翻译： 一种无线通信中快速有效的数据下载方法。 该方法包括通过使用毫米波无线通信和常规无线通信（WiFi，3G等），以高速和高效的方式将大尺寸的文件数据从服务器（接入点）下载到用户的客户端（移动设备） 。 服务器将打包的文件数据发送给客户机。 文件数据通过mmWave作为数据包传输。 并行地，服务器发送对应于数据分组的检查分组（roll-call packet）。 作为建立链路时的测试，测量每条通信线路的延迟。 接收方在接收到检查数据包完成后，检查其对应的mmWave数据包是否到达。 如果没有到达任何相应的mmWave分组，则确定mmWave分组已经丢失，并且通过WiFi立即将重传请求返回给服务器。

公开(公告)号：US08943362B2

公开(公告)日：2015-01-27

申请号：US13599407

申请日：2012-08-30

申请人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

发明人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

IPC分类号： G06F11/00 ,  H04L1/18 ,  H04L1/24 ,  H04W28/04

CPC分类号： H04L1/1854 ,  H04L1/1838 ,  H04L1/24 ,  H04W28/04

摘要： A method for fast and efficient data downloading in wireless communications. The method includes ways to download file data of a large size from a server (access point) to a user's client (mobile device) at high speed and efficiency by using both mmWave wireless communication and conventional wireless communication (WiFi, 3G, etc.). A server transmits packetized file data to a client. The file data is transmitted as data packets via mmWave. In parallel, the server transmits check packets (roll-call packets) corresponding to the data packets. As a test at the time of establishing links, the latency for each communication line is measured. The receiver side, upon completion of receiving the check packets, checks whether their corresponding mmWave packets have arrived. If any corresponding mmWave packet has not arrived, it is determined that the mmWave packet has been lost and a retransmission request is immediately returned to the server via WiFi.

摘要翻译： 一种无线通信中快速有效的数据下载方法。 该方法包括通过使用毫米波无线通信和常规无线通信（WiFi，3G等），以高速和高效的方式将大尺寸的文件数据从服务器（接入点）下载到用户的客户端（移动设备） 。 服务器将打包的文件数据发送给客户机。 文件数据通过mmWave作为数据包传输。 并行地，服务器发送对应于数据分组的检查分组（roll-call packet）。 作为建立链路时的测试，测量每条通信线路的延迟。 接收方在接收到检查数据包完成后，检查其对应的mmWave数据包是否到达。 如果没有到达任何相应的mmWave分组，则确定mmWave分组已经丢失，并且通过WiFi立即将重传请求返回给服务器。

公开(公告)号：US08756456B2

公开(公告)日：2014-06-17

申请号：US13371560

申请日：2012-02-13

申请人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

发明人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

IPC分类号： G06F11/00

CPC分类号： H04L1/1854 ,  H04L1/1838 ,  H04L1/24 ,  H04W28/04

摘要： A method for fast and efficient data downloading in wireless communications. The method includes ways to download file data of a large size from a server (access point) to a user's client (mobile device) at high speed and efficiency by using both mmWave wireless communication and conventional wireless communication (WiFi, 3G, etc.). A server transmits packetized file data to a client. The file data is transmitted as data packets via mmWave. In parallel, the server transmits check packets (roll-call packets) corresponding to the data packets. As a test at the time of establishing links, the latency for each communication line is measured. The receiver side, upon completion of receiving the check packets, checks whether their corresponding mmWave packets have arrived. If any corresponding mmWave packet has not arrived, it is determined that the mmWave packet has been lost and a retransmission request is immediately returned to the server via WiFi.

摘要翻译： 一种无线通信中快速有效的数据下载方法。 该方法包括通过使用毫米波无线通信和常规无线通信（WiFi，3G等），以高速和高效的方式将大尺寸的文件数据从服务器（接入点）下载到用户的客户端（移动设备） 。 服务器将打包的文件数据发送给客户机。 文件数据通过mmWave作为数据包传输。 并行地，服务器发送对应于数据分组的检查分组（roll-call packet）。 作为建立链路时的测试，测量每条通信线路的延迟。 接收方在接收到检查数据包完成后，检查其对应的mmWave数据包是否到达。 如果没有到达任何相应的mmWave分组，则确定mmWave分组已经丢失，并且通过WiFi立即将重传请求返回给服务器。

公开(公告)号：US20120320786A1

公开(公告)日：2012-12-20

申请号：US13599407

申请日：2012-08-30

申请人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

发明人： Yasunao Katayama ,  Nobuyuki Ohba ,  Kohji Takano

IPC分类号： H04W24/00

CPC分类号： H04L1/1854 ,  H04L1/1838 ,  H04L1/24 ,  H04W28/04

摘要： A method for fast and efficient data downloading in wireless communications. The method includes ways to download file data of a large size from a server (access point) to a user's client (mobile device) at high speed and efficiency by using both mmWave wireless communication and conventional wireless communication (WiFi, 3G, etc.). A server transmits packetized file data to a client. The file data is transmitted as data packets via mmWave. In parallel, the server transmits check packets (roll-call packets) corresponding to the data packets. As a test at the time of establishing links, the latency for each communication line is measured. The receiver side, upon completion of receiving the check packets, checks whether their corresponding mmWave packets have arrived. If any corresponding mmWave packet has not arrived, it is determined that the mmWave packet has been lost and a retransmission request is immediately returned to the server via WiFi.

公开(公告)号：US20120143936A1

公开(公告)日：2012-06-07

申请号：US13300710

申请日：2011-11-21

申请人： Yasunao Katayama ,  Kohji Takano

发明人： Yasunao Katayama ,  Kohji Takano

IPC分类号： G06F17/14

CPC分类号： G06F17/142 ,  G06F17/141

摘要： A system and method to reduce roundoff error of Fast Fourier transform (FFT) operation. Data which comes out as an irrational number (a square root) out of twiddle factors on a complex plane, included in a butterfly operation (8p) is preserved intentionally without being calculated in one stage of multiple stages of a multi-stage pipelined FFT, and when it occurs again in a later stage, an operation to multiply the two twiddle factors with each other is performed. This enables to eliminate roundoff errors during the butterfly operation 8p of radix-8. Other applications are also possible such as by overlaying a further stage by a butterfly operation of radix-2 or radix-4.

摘要翻译： 一种降低快速傅里叶变换（FFT）运算误差的方法。 包含在蝴蝶操作（8p）中的复平面上的旋转因子中出现的非理性数（数平方根）的数据被有意保留，而不是在多级流水线FFT的多级的一个阶段中计算出来， 并且当在稍后阶段再次发生时，执行将两个旋转因子彼此相乘的操作。 这使得能够在基数-8的蝶形运算8p期间消除舍入误差。 其他应用也是可能的，例如通过用基数-2或基数-4的蝶形运算覆盖另外的阶段。

公开(公告)号：US20110075776A1

公开(公告)日：2011-03-31

申请号：US12924535

申请日：2010-09-29

申请人： Yasunao Katayama ,  Daiju Nakano ,  Kohji Takano

发明人： Yasunao Katayama ,  Daiju Nakano ,  Kohji Takano

IPC分类号： H04B1/10

CPC分类号： H04L27/34 ,  H04L25/0232

摘要： A method and circuit that gives a sequence pattern that represents directions of positive and negative transitions of the phase that continue over a predetermined number from a certain reference symbol to an adjoining next reference symbol; finds (heuristically) one or more interpolate symbols that meet conditions (such as standards for power spectra) of a predetermined frequency spectrum, i.e., band, and a predetermined (range of) amplitude with reference to the given sequence pattern; and stores the found sequence pattern and a phase value and an amplitude value corresponding to the found one or more interpolate symbols in a memory as a lookup table against the prepared memory area.

摘要翻译： 一种方法和电路，其给出表示从某个参考符号到相邻的下一个参考符号在预定数目上继续的相位的正和负转变的方向的序列模式; 参考给定的序列模式，发现（启发式）一个或多个满足预定频谱（即，频带）和预定（幅度范围）的条件（诸如功率谱的标准）的内插符号; 并将所找到的序列模式和与所找到的一个或多个内插符号相对应的相位值和振幅值存储在存储器中作为针对准备好的存储器区域的查找表。

公开(公告)号：US08838661B2

公开(公告)日：2014-09-16

申请号：US13300710

申请日：2011-11-21

申请人： Yasunao Katayama ,  Kohji Takano

发明人： Yasunao Katayama ,  Kohji Takano

IPC分类号： G06F17/14

CPC分类号： G06F17/142 ,  G06F17/141

摘要： A system and method to reduce roundoff error of Fast Fourier transform (FFT) operation. Data which comes out as an irrational number (a square root) out of twiddle factors on a complex plane, included in a butterfly operation (8p) is preserved intentionally without being calculated in one stage of multiple stages of a multi-stage pipelined FFT, and when it occurs again in a later stage, an operation to multiply the two twiddle factors with each other is performed. This enables to eliminate roundoff errors during the butterfly operation 8p of radix-8. Other applications are also possible such as by overlaying a further stage by a butterfly operation of radix-2 or radix-4.

摘要翻译： 一种降低快速傅里叶变换（FFT）运算误差的方法。 包含在蝴蝶操作（8p）中的复平面上的旋转因子中出现的非理性数（数平方根）的数据被有意保留，而不是在多级流水线FFT的多级的一个阶段中计算出来， 并且当在稍后阶段再次发生时，执行将两个旋转因子彼此相乘的操作。 这使得能够在基数-8的蝶形运算8p期间消除舍入误差。 其他应用也是可能的，例如通过用基数-2或基数-4的蝶形运算覆盖另外的阶段。

公开(公告)号：US08379708B2

公开(公告)日：2013-02-19

申请号：US12924535

申请日：2010-09-29

申请人： Yasunao Katayama ,  Daiju Nakano ,  Kohji Takano

发明人： Yasunao Katayama ,  Daiju Nakano ,  Kohji Takano

IPC分类号： H03H7/40

CPC分类号： H04L27/34 ,  H04L25/0232

摘要： A method and circuit that gives a sequence pattern that represents directions of positive and negative transitions of the phase that continue over a predetermined number from a certain reference symbol to an adjoining next reference symbol; finds (heuristically) one or more interpolate symbols that meet conditions (such as standards for power spectra) of a predetermined frequency spectrum, i.e., band, and a predetermined (range of) amplitude with reference to the given sequence pattern; and stores the found sequence pattern and a phase value and an amplitude value corresponding to the found one or more interpolate symbols in a memory as a lookup table against the prepared memory area.

摘要翻译： 一种方法和电路，其给出表示从某个参考符号到相邻的下一个参考符号在预定数目上继续的相位的正和负转变的方向的序列模式; 参考给定的序列模式，发现（启发式）一个或多个满足预定频谱（即，频带）和预定（幅度范围）的条件（诸如功率谱的标准）的内插符号; 并将所找到的序列模式和与所找到的一个或多个内插符号相对应的相位值和振幅值存储在存储器中作为针对准备好的存储器区域的查找表。

公开(公告)号：US07743199B2

公开(公告)日：2010-06-22

申请号：US12108158

申请日：2008-04-23

申请人： Zhang Gang ,  Yasuteru Kohda ,  Nobuyuki Ohba ,  Kohji Takano

发明人： Zhang Gang ,  Yasuteru Kohda ,  Nobuyuki Ohba ,  Kohji Takano

IPC分类号： G06F13/00 ,  G01R31/28

CPC分类号： G06F11/349 ,  G06F11/3485

摘要： An integrated bus architecture for transmitting trace information from a plurality of processors included on an integrated chip having one or more peripheral I/O channels comprises a segmented bus having a plurality of segments arranged in a ring topology and configured to transmit trace information in a circular pathway from upstream segments to downstream segments, and one or more trace output circuits each connected to a respective segment and each including a switch configured to be dynamically toggled between enabled and disabled states. The plurality of segments includes a respective segment for each processor having a coupling unit connected to a trace port of the processor. The coupling unit is configured to receive trace information from the trace port, to receive trace information from the adjacent upstream segment, and to transmit items of trace information to the adjacent downstream segment. Each trace output circuit is configured to transmit trace information to a respective peripheral I/O channel when in the enabled state. Each trace output circuit is configured to transmit trace information to the adjacent downstream segment when in the disabled state.

摘要翻译： 用于从包括在具有一个或多个外设I / O通道的集成芯片上的多个处理器发送跟踪信息的集成总线架构包括分段总线，其具有以环形拓扑布置的多个段，并且被配置为以圆形方式传送跟踪信息 路径从上游段到下游段，以及一个或多个跟踪输出电路，每个跟踪输出电路各自连接到相应的段，并且每个跟踪输出电路都包括被配置为在启用和禁用状态之间动态切换的交换机 多个段包括用于每个处理器的相应段，其具有连接到处理器的跟踪端口的耦合单元。 耦合单元被配置为从跟踪端口接收跟踪信息，以从相邻的上游段接收跟踪信息，并将跟踪信息的项目发送到相邻的下游段。 每个跟踪输出电路被配置为当处于使能状态时将跟踪信息发送到相应的外设I / O通道。 每个跟踪输出电路被配置为当处于禁用状态时将跟踪信息发送到相邻的下游段。

公开(公告)号：US20070203675A1

公开(公告)日：2007-08-30

申请号：US11680542

申请日：2007-02-28

申请人： Nobuyuki Ohba ,  Kohji Takano

发明人： Nobuyuki Ohba ,  Kohji Takano

IPC分类号： G06F15/00

CPC分类号： G01R31/31704

摘要： An observation apparatus which observers operations of an observation target apparatus, and which includes: an output signal acquisition unit for sequentially acquiring signal values by observing signals outputted by the observation target apparatus; a state storage unit for sequentially storing the acquired signal values; a determination unit for determining whether a first signal value newly acquired is identical with a second signal value which is acquired prior to the first signal value, and which is stored in the state storage unit; and a separation unit for separating and outputting a signal sequence, which includes a plurality of signal values acquired between the first signal value and the second signal value, as transactions of the output signals, on condition that it is determined that the first signal value is identical with the second signal value.

摘要翻译： 观察观察对象装置的观察装置，其特征在于，包括：输出信号获取部，其通过观察观察对象装置输出的信号顺次取得信号值; 状态存储单元，用于顺序地存储所获取的信号值; 确定单元，用于确定新获取的第一信号值是否与在所述第一信号值之前获取的第二信号值相同，并且被存储在所述状态存储单元中; 以及分离单元，用于在确定所述第一信号值为（否）的情况下，分离并输出包括在所述第一信号值和所述第二信号值之间获取的多个信号值的信号序列作为所述输出信号的交易; 与第二信号值相同。