公开(公告)号：US08254489B2

公开(公告)日：2012-08-28

申请号：US12406948

申请日：2009-03-18

申请人： Wen-Chung Liu ,  Gin-Kou Ma ,  Muh-Rong Yang

发明人： Wen-Chung Liu ,  Gin-Kou Ma ,  Muh-Rong Yang

IPC分类号： H04B7/02 ,  H04K1/10 ,  H04L27/28 ,  H03C5/00 ,  H03K7/02

CPC分类号： H04B7/0426

摘要： A transmission method executed in a multiple input multiple output wireless communication system may include the following steps: receiving a transmitting bit sequence; providing an X level pulse amplitude modulation (X-PAM) signal set, wherein distances between any two adjacent signal points in the X-PAM are the same; generating M signal sets according to the X-PAM signal set, wherein the ith signal set is formed by multiplying the X-PAM signal set with a parameter (1/X)(i−1), wherein i is an integer from 1 to M, and generating a X-PAM signal set joint coding/decoding table according a superposition result of the M signal sets; generating M transmitting bit sub-sequences according to the transmitting bit sequence; generating M transmitting signals according to the M transmitting bit sub-sequences and the X-PAM signal set joint coding/decoding table; transmitting the M transmitting signals to a wireless transmission channel via M transmitting antennae.

摘要翻译： 在多输入多输出无线通信系统中执行的发送方法可以包括以下步骤：接收发送比特序列; 提供X级脉冲幅度调制（X-PAM）信号组，其中X-PAM中任意两个相邻信号点之间的距离相同; 根据X-PAM信号组生成M个信号组，其中第i个信号组是通过将X-PAM信号集合与参数（1 / X）（i-1）相乘形成的，其中i是从1到 M，并根据M个信号集合的叠加结果生成X-PAM信号集合编码/解码表; 根据发送比特序列产生M个发送比特子序列; 根据M个发送比特子序列和X-PAM信号集合编码/解码表生成M个发送信号; 通过M个发送天线将M个发送信号发送到无线传输信道。

公开(公告)号：US20100166096A1

公开(公告)日：2010-07-01

申请号：US12406948

申请日：2009-03-18

申请人： Wen-Chung Liu ,  Gin-Kou Ma ,  Muh-Rong Yang

发明人： Wen-Chung Liu ,  Gin-Kou Ma ,  Muh-Rong Yang

IPC分类号： H04B7/02

CPC分类号： H04B7/0426

摘要： A transmission method executed in a multiple input multiple output wireless communication system may include the following steps: receiving a transmitting bit sequence; providing an X level pulse amplitude modulation (X-PAM) signal set, wherein distances between any two adjacent signal points in the X-PAM are the same; generating M signal sets according to the X-PAM signal set, wherein the ith signal set is formed by multiplying the X-PAM signal set with a parameter (1/X)(i-1), wherein i is an integer from 1 to M, and generating a X-PAM signal set joint coding/decoding table according a superposition result of the M signal sets; generating M transmitting bit sub-sequences according to the transmitting bit sequence; generating M transmitting signals according to the M transmitting bit sub-sequences and the X-PAM signal set joint coding/decoding table; transmitting the M transmitting signals to a wireless transmission channel via M transmitting antennae.

摘要翻译： 在多输入多输出无线通信系统中执行的发送方法可以包括以下步骤：接收发送比特序列; 提供X级脉冲幅度调制（X-PAM）信号组，其中X-PAM中任意两个相邻信号点之间的距离相同; 根据X-PAM信号组生成M个信号组，其中第i个信号组是通过将X-PAM信号集合与参数（1 / X）（i-1）相乘形成的，其中i是从1到 M，并根据M个信号集合的叠加结果生成X-PAM信号集合编码/解码表; 根据发送比特序列产生M个发送比特子序列; 根据M个发送比特子序列和X-PAM信号集合编码/解码表生成M个发送信号; 通过M个发送天线将M个发送信号发送到无线传输信道。

公开(公告)号：US06279040B1

公开(公告)日：2001-08-21

申请号：US09300826

申请日：1999-04-27

申请人： Gin-Kou Ma ,  Chiung-Shien Wu ,  Muh-Rong Yang

发明人： Gin-Kou Ma ,  Chiung-Shien Wu ,  Muh-Rong Yang

IPC分类号： G06F1300

CPC分类号： H04L29/06 ,  H04J3/0632 ,  H04J3/247 ,  H04L67/42 ,  H04L2012/5651 ,  H04L2012/5672 ,  H04L2012/5679 ,  H04Q11/0478

摘要： A scalable server architecture for use in implementing scaled media servers capable of simultaneous real-time data stream retrieval for large numbers of subscribers. A scalable server includes a plurality of stream pumping engines each accessing a particular storage device of a storage subsystem, and a server processor which receives retrieval requests from subscribers and directs the stream pumping engines to retrieve the requested data streams. Each of the stream pumping engines may include a storage controller coupled to its corresponding storage device for directing retrieval of the requested stream therefrom, a network controller for supplying the retrieved stream to a client network, and a processor for directing the operation of the storage and network controllers. Each of the stream pumping engines may also include a shared memory accessible by the corresponding stream pumping engine processor and the server processor. The shared memory facilitates communication with other stream pumping engines via the server processor and server system bus. A scaled media server may be implemented by cross-connecting several scalable servers with a plurality of stream multiplexers. Each of the stream multiplexers can include a separate packet input unit for processing the packets of each media stream such that two distinct levels of transmission priority are provided and quality of server restrictions are satisfied for all streams.

摘要翻译： 一种可扩展的服务器体系结构，用于实现能够为大量用户同时进行实时数据流检索的缩放媒体服务器。 可扩展服务器包括每个访问存储子系统的特定存储设备的多个流泵送引擎，以及服务器处理器，其接收来自订户的检索请求并指示流泵送引擎检索所请求的数据流。 每个流泵送引擎可以包括耦合到其相应的存储设备的存储控制器，用于指示从其中检索所请求的流，网络控制器，用于将检索到的流提供给客户端网络;以及处理器，用于指导存储器的操作，以及 网络控制器 每个流泵送引擎还可以包括由相应的流泵送引擎处理器和服务器处理器可访问的共享存储器。 共享内存便于通过服务器处理器和服务器系统总线与其他流泵送引擎进行通信。 可以通过将多个可扩展服务器与多个流多路复用器交叉连接来实现缩放的媒体服务器。 每个流多路复用器可以包括单独的分组输入单元，用于处理每个媒体流的分组，使得提供两个不同级别的传输优先级，并且对于所有流来满足服务器限制的质量。

公开(公告)号：US5856977A

公开(公告)日：1999-01-05

申请号：US856557

申请日：1997-05-15

申请人： Muh-rong Yang ,  Gin-Kou Ma

发明人： Muh-rong Yang ,  Gin-Kou Ma

IPC分类号： H04L12/56 ,  H04L12/28

CPC分类号： H04L12/5601 ,  H04L49/108 ,  H04L49/153 ,  H04L49/1561 ,  H04L2012/5647 ,  H04L2012/5681

摘要： An inventive switch for transporting information cells without cell contention is described. The switch includes at least one parallel distribution network. Each distribution network includes an N.times.N first routing network for receiving cells at a plurality of input ports, where N equals the number the input ports. Illustratively, the routing network is self-routing and non-blocking, such as a Banyan Network. Connected to the N.times.N network are .rho..sup.k groups of shared buffers for storing the cells routed through the network for a period of time not greater than one cell cycle, where k is incremented from 1 to �log.sub.2 N/log.sub.2 .rho.!.sup.-1 and .rho. equals a predetermined speed-up factor. In one aspect of this embodiment, the number of shared buffers is simply equal to N/.rho.. To prevent cell contention and cell loss, all of the contentious cells (cells destined for the same output during the same cycle) are stored in the same shared buffer. Connected to the shared buffers are .rho..sup.k groups of (N/.rho..sup.k).times.(N/.rho..sup.k) routing networks each having a plurality of output ports for outputting the cells, stored in the shared buffers, based on the destination addresses of each cell. Due in part to the utilization of .rho..sup.k groups of shared buffers, a large reduction in both hardware costs and chip real estate is realized. Specifically, a decrease in the number of switching stages is achieved.

摘要翻译： 描述了用于在没有信元争用的情况下传送信息单元的本发明的开关。 交换机包括至少一个并行分发网络。 每个分配网络包括用于在多个输入端口处接收小区的NxN第一路由网络，其中N等于输入端口的数量。 说明性地，路由网络是自路由和非阻塞的，例如Banyan网络。 连接到NxN网络是共享缓冲器组，用于存储经由网络路由的小区不超过一个小区周期，其中k从1增加到[log2N / log2rho] -1，rho等于 预定的加速因子。 在该实施例的一个方面，共享缓冲器的数量简单地等于N / rho。 为了防止信元争用和信元丢失，所有有争议的信元（在相同周期期间注定为相同输出的信元）被存储在相同的共享缓冲器中。 连接到共享缓冲器的是（N / rho k）x（N / rho k）路由网络的rho k组，每个路由网络具有多个输出端口，用于基于每个的目的地地址存储在共享缓冲器中的单元 细胞。 部分由于使用rhok组的共享缓冲区，实现了硬件成本和芯片空间的大幅度降低。 具体地说，实现了切换级数的减少。

公开(公告)号：US5940389A

公开(公告)日：1999-08-17

申请号：US854395

申请日：1997-05-12

申请人： Muh-rong Yang ,  Gin-Kou Ma

发明人： Muh-rong Yang ,  Gin-Kou Ma

IPC分类号： H04J3/14

CPC分类号： H04L49/1507 ,  H04L49/254

摘要： A system and method are provided for assigning routing tag bits for routing signals through a Benes network comprising an input stage and an output stage. The input and output stages each comprise a column of 2.times.2 .beta. elements which route an inputted signal to an upper output if the control sequence bit is 0 and to a lower output if the control sequence bit is 1. Each signal inputted to the Benes network is associated with control sequence. For a particular Benes, in a particular control stage of the Benes network, a 0 is assigned to a control sequence bit associated with a signal q.sub.0 received at an upper input of a topmost input stage .beta. element. A 1 is assigned to a control sequence bit associated with a signal q.sub.k received at the same output stage p element as the signal q.sub.0. A 1 is assigned to a control sequence bit associated with a signal q.sub.1 received at a lower input of the topmost input stage .beta. element. A 0 to is assigned to a control sequence bit associated with a signal q.sub.k ' received at the same output stage .beta. element as the signal q.sub.1. For at least one signal q.sub.p for which no control sequence bit is yet assigned, either a 0 or a 1 is assigned to the control sequence bit associated with the signal q.sub.p. The complement of the chosen control sequence bit is assigned to a control sequence bit associated with a signal q.sub.k " received at the same output stage .beta. element as the signal q.sub.p.

摘要翻译： 提供了一种系统和方法，用于通过包括输入级和输出级的Benes网络为路由信号分配路由标签位。 如果控制序列位为0，则输入和输出级各自包括2×2β元件的列，其将输入的信号路由到上输出，并且如果控制序列位为1，则将其输入到较低的输出。输入到Benes网络的每个信号是 与控制序列相关。 对于特定的Benes，在Benes网络的特定控制级中，将0分配给与在最上面的输入级β元件的上部输入处接收的信号q0相关联的控制序列位。 A 1被分配给与在与信号q0相同的输出级p元件处接收的信号qk相关联的控制序列位。 A 1被分配给与在最上面的输入级β元件的较低输入处接收的信号q1相关联的控制序列位。 A 0被分配给与在与信号q1相同的输出级β元件处接收的信号qk'相关联的控制序列位。 对于尚未分配控制序列位的至少一个信号qp，将0或1分配给与信号qp相关联的控制序列位。 所选择的控制序列位的补码被分配给与在与信号qp相同的输出级β元件处接收的信号qk“相关联的控制序列位。

公开(公告)号：US5926649A

公开(公告)日：1999-07-20

申请号：US736215

申请日：1996-10-23

申请人： Gin-Kou Ma ,  Chiung-Shien Wu ,  Muh-Rong Yang

发明人： Gin-Kou Ma ,  Chiung-Shien Wu ,  Muh-Rong Yang

IPC分类号： G06F9/48 ,  G06F13/37

CPC分类号： G06F9/4887

摘要： A method and apparatus for storage and retrieval of multiple data streams in a multimedia distribution system. A given data stream is separated into a plurality of portions, and the portions are stored in a multi-disk storage system with Y disks each having X zones such that the ith portion of the given stream is stored in zone (i mod X) of disk (i mod Y). The number X of zones per disk and the number Y of disks are selected as relatively prime numbers. The stored data are retrieved using Y independent retrieval schedulers which are circulated among the Y disks over a number of scheduling intervals. Each retrieval scheduler processes multiple requests separated into X groups, with the requests of each group accessing the same disk zone during a given scheduling interval. The retrieval schedulers are also configured such that the retrieval requests of a given retrieval scheduler access the same disk during a given scheduling interval. The data stream placement technique in conjunction with the retrieval schedulers provide sequential-like parallel retrieval suitable for supporting real-time multimedia data distribution for large numbers of clients.

摘要翻译： 一种用于在多媒体分发系统中存储和检索多个数据流的方法和装置。 给定的数据流被分成多个部分，并且这些部分被存储在多盘存储系统中，每个Y盘具有X个区域，使得给定流的第i个部分被存储在 磁盘（i mod Y）。 选择每个磁盘区域的数量X和磁盘的数量Y作为相对素数。 使用Y个独立的检索调度器检索存储的数据，这些调度器在多个调度间隔中在Y个盘之间循环。 每个检索调度程序处理分离成X组的多个请求，每个组的请求在给定的调度间隔期间访问相同的磁盘区。 检索调度器还被配置为使得给定检索调度程序的检索请求在给定调度间隔期间访问相同的盘。 数据流放置技术与检索调度器一起提供了适合于支持大量客户端的实时多媒体数据分发的顺序式并行检索。

公开(公告)号：US20080117848A1

公开(公告)日：2008-05-22

申请号：US11753532

申请日：2007-05-24

申请人： Muh-Rong Yang ,  Gin-Kou Ma ,  Cheng-Hsiang Chiu

发明人： Muh-Rong Yang ,  Gin-Kou Ma ,  Cheng-Hsiang Chiu

IPC分类号： G08C17/00

CPC分类号： H04W52/0216 ,  H04W76/20 ,  Y02D70/146 ,  Y02D70/23

摘要： A method for power management in a communication system is disclosed. The communication system is capable of operating in a first mode, and comprises at least one device having first module corresponding to the first mode. The device can be configured to a normal mode or a power saving mode. First, map data is retrieved from frame data, in which the map data indicates a first time point corresponding to the first mode. Then, when the communication system operates in the first mode, the first module of the device is determined to be configured to the normal mode or the power saving mode according to the first time point.

摘要翻译： 公开了一种通信系统中的电力管理方法。 通信系统能够以第一模​​式操作，并且包括具有对应于第一模式的第一模块的至少一个设备。 该设备可以配置为正常模式或省电模式。 首先，从帧数据检索地图数据，其中地图数据表示与第一模式对应的第一时间点。 然后，当通信系统在第一模式下工作时，根据第一时间点确定设备的第一模块被配置为正常模式或省电模式。

公开(公告)号：US5987028A

公开(公告)日：1999-11-16

申请号：US854394

申请日：1997-05-12

申请人： Muh-Rong Yang ,  Gin-Kou Ma

发明人： Muh-Rong Yang ,  Gin-Kou Ma

IPC分类号： H04L12/56 ,  H04L12/50 ,  H04L12/28 ,  H04Q11/06

CPC分类号： H04L49/1507 ,  H04L49/1561 ,  H04L49/3018

摘要： A system and method are provided for routing received cells through a switch fabric. A plurality of output channels are organized into a plurality of channel groups, wherein each of the channels groups is associated with one or more unique output ports of a Benes network. A plurality of cells destined to one or more of the plurality of channel groups is received at plural input queues. A different output port of the Benes network is selected for one or more of the input queues that contains a cell. Then, one cell is switched from each of one or more input queues through the Benes network to the respective selected output port.

摘要翻译： 提供了一种用于通过交换结构路由接收的小区的系统和方法。 多个输出通道被组织成多个通道组，其中每个通道组与Benes网络的一个或多个唯一的输出端口相关联。 在多个输入队列处接收多个指向多个信道组中的一个或多个信道组的小区。 为包含单元格的一个或多个输入队列选择Benes网络的不同输出端口。 然后，通过Benes网络将一个单元从一个或多个输入队列中的每一个切换到相应的选择的输出端口。

公开(公告)号：US5978843A

公开(公告)日：1999-11-02

申请号：US736216

申请日：1996-10-23

申请人： Chiung-Shien Wu ,  Gin-Kou Ma ,  Muh-Rong Yang

发明人： Chiung-Shien Wu ,  Gin-Kou Ma ,  Muh-Rong Yang

IPC分类号： H04Q3/00 ,  H04J3/06 ,  H04J3/24 ,  H04L12/56 ,  H04L29/06 ,  H04Q11/04 ,  G06F15/16

CPC分类号： H04L29/06 ,  H04J3/0632 ,  H04J3/247 ,  H04Q11/0478 ,  H04L2012/5651 ,  H04L2012/5672 ,  H04L2012/5679 ,  H04L67/42

摘要： A scalable server architecture for use in implementing scaled media servers capable of simultaneous real-time data stream retrieval for large numbers of subscribers. A scalable server includes a plurality of stream pumping engines each accessing a particular storage device of a storage subsystem, and a server processor which receives retrieval requests from subscribers and directs the stream pumping engines to retrieve the requested data streams. Each of the stream pumping engines may include a storage controller coupled to its corresponding storage device for directing retrieval of the requested stream therefrom, a network controller for supplying the retrieved stream to a client network, and a processor for directing the operation of the storage and network controllers. Each of the stream pumping engines may also include a shared memory accessible by the corresponding stream pumping engine processor and the server processor. The shared memory facilitates communication with other stream pumping engines via the server processor and server system bus. A scaled media server may be implemented by cross-connecting several scalable servers with a plurality of stream multiplexers. Each of the stream multiplexers can include a separate packet input unit for processing the packets of each media stream such that two distinct levels of transmission priority are provided and quality of server restrictions are satisfied for all streams.

摘要翻译： 一种可扩展的服务器体系结构，用于实现能够为大量用户同时进行实时数据流检索的缩放媒体服务器。 可扩展服务器包括每个访问存储子系统的特定存储设备的多个流泵送引擎，以及服务器处理器，其接收来自订户的检索请求并指示流泵送引擎检索所请求的数据流。 每个流泵送引擎可以包括耦合到其相应的存储设备的存储控制器，用于指示从其中检索所请求的流，网络控制器，用于将检索到的流提供给客户端网络;以及处理器，用于指导存储器的操作，以及 网络控制器 每个流泵送引擎还可以包括由相应的流泵送引擎处理器和服务器处理器可访问的共享存储器。 共享内存便于通过服务器处理器和服务器系统总线与其他流泵送引擎进行通信。 可以通过将多个可扩展服务器与多个流多路复用器交叉连接来实现缩放的媒体服务器。 每个流多路复用器可以包括单独的分组输入单元，用于处理每个媒体流的分组，使得提供两个不同级别的传输优先级，并且对于所有流来满足服务器限制的质量。

公开(公告)号：US20080118003A1

公开(公告)日：2008-05-22

申请号：US12023341

申请日：2008-01-31

申请人： Wen-Chung Liu ,  Gin-Kou Ma

发明人： Wen-Chung Liu ,  Gin-Kou Ma

IPC分类号： H04L27/20

CPC分类号： H04L27/186 ,  H04L1/0618

摘要： A communication system comprising a channel encoder to generate a binary bit stream, a mapping unit coupled to the channel encoder, the mapping unit configured to receive the binary bit stream from the channel encoder and to map every “n” consecutive bits of the binary bit stream into a symbol in accordance with a mapping table, wherein the symbol has a symbol value related to a modulation mode, “n” being a positive integer, and a number of “m” modulation units coupled to the mapping unit, “m” being a positive integer, the modulation units configured to receive a set of “m” symbols from the mapping unit and modulate the set of “m” symbols based on the modulation mode, wherein a combined value of the symbol values of the set of “m” symbols from the mapping unit is distinguishable from another combined value of the symbol values of another set of “m” symbols from the mapping unit, and wherein a combined value of the symbol values of a set of “m” symbols from the mapping unit corresponds to a distinguishable bit value of the “n” consecutive bits in the binary bit stream.

摘要翻译： 一种通信系统，包括用于产生二进制比特流的信道编码器，耦合到信道编码器的映射单元，该映射单元被配置为从信道编码器接收二进制比特流并映射二进制位的每个“n”个连续比特 根据映射表流入符号，其中符号具有与调制模式相关的符号值，“n”为正整数，以及耦合到映射单元的“m”个调制单元的数量，“m” 作为正整数，所述调制单元被配置为从所述映射单元接收一组“m”个符号，并且基于所述调制模式来调制所述一组“m”个符号，其中，所述“ 来自映射单元的“m”符号与来自映射单元的另一组“m”符号的符号值的另一组合值是可区分的，并且其中来自映射的一组“m”符号的符号值的组合值 单位对应 到二进制比特流中的“n”个连续比特的可区分比特值。