公开(公告)号：US07706338B2

公开(公告)日：2010-04-27

申请号：US11181548

申请日：2005-07-14

申请人： George D. Kondylis ,  Ling Su ,  Neal Nuckolls ,  Bruce E. Edwards ,  Matthew J. Fischer ,  Jason Trachewsky ,  Stephen R. Palm

发明人： George D. Kondylis ,  Ling Su ,  Neal Nuckolls ,  Bruce E. Edwards ,  Matthew J. Fischer ,  Jason Trachewsky ,  Stephen R. Palm

IPC分类号： H04W4/00

CPC分类号： H04W74/0816 ,  H04W28/065 ,  H04W80/02

摘要： A method and system for a bandwidth efficient medium access control (MAC) protocol is provided, which may comprise communicating a request to transmit (RTS) signal to a receiving station to determine if a channel is available for transmission. A clear to send (CTS) acknowledgement signal may be received from the receiving station if the channel is available for transmission. A plurality of medium access control (MAC) protocol data unit (MPDU) fragments separated by a point coordination function (PCF) interframe space (PIFS) interval may be transmitted in response to the received CTS acknowledgement signal.

摘要翻译： 提供了一种用于带宽有效的媒体接入控制（MAC）协议的方法和系统，其可以包括传送向接收站发送（RTS）信号的请求以确定信道是否可用于传输。 如果信道可用于传输，则可以从接收站接收清除发送（CTS）确认信号。 响应于所接收的CTS确认信号，可以发送由点协调功能（PCF）帧间间隔（PIFS）间隔分离的多个介质访问控制（MAC）协议数据单元（MPDU）片段。

公开(公告)号：US20090262721A1

公开(公告)日：2009-10-22

申请号：US12494770

申请日：2009-06-30

申请人： Bruce E. Edwards ,  Matthew J. Fischer

发明人： Bruce E. Edwards ,  Matthew J. Fischer

IPC分类号： H04J3/24

CPC分类号： H04W28/06

摘要： A method of combining multiple frames of data into a single access to a shared communications medium improves network efficiency transmitting in a fashion compatible with legacy network equipment. An increase in the efficiency of use of a shared communications medium is realized by amortizing the overhead of fixed elements of a communication protocol over multiple frames. The sharing of preamble signaling, elimination of multiple inter-frame gaps or spaces, and the use of a legacy signal field permits a representative embodiment of the present invention to more effectively use a shared communication medium, while in addition providing backward compatible support for legacy network stations.

摘要翻译： 将多帧数据组合成对共享通信介质的单一访问的方法以与传统网络设备兼容的方式提高网络效率传输。 通过在多个帧上分摊通信协议的固定元件的开销来实现共享通信介质的使用效率的提高。 前导码信令的共享，多个帧间间隙或空格的消除以及传统信号字段的使用允许本发明的代表性实施例更有效地使用共享通信介质，而另外提供向后兼容的支持传统 网站。

公开(公告)号：US07586881B2

公开(公告)日：2009-09-08

申请号：US10973212

申请日：2004-10-26

申请人： Christopher J. Hansen ,  Jason A. Trachewsky ,  R. Tushar Moorti ,  Matthew J. Fischer ,  Christopher Young

发明人： Christopher J. Hansen ,  Jason A. Trachewsky ,  R. Tushar Moorti ,  Matthew J. Fischer ,  Christopher Young

IPC分类号： H04Q7/00

CPC分类号： H04W72/044 ,  H04L1/0001 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/06 ,  H04L1/1867 ,  H04L25/0226 ,  H04L25/0228 ,  H04L27/2613 ,  H04W84/12

摘要： A method for multiple input multiple output wireless communication begins by determining protocols of wireless communication devices within the proximal region. The method continues by determining whether the protocols of the wireless communication devices within a proximal region are of a like protocol. The method continues by determining the a number of transmit antennas. The method continues, when the protocols of the wireless communication devices within a proximal region are of the like protocol, formatting preamble of a frame of a wireless communication utilizing at least one of cyclic shifting of symbols, cyclic shifting of tones, sparse tone allocation, and sparse symbol allocation based on the number of transmit antennas.

摘要翻译： 用于多输入多输出无线通信的方法通过确定近端区域内的无线通信设备的协议来开始。 该方法通过确定近端区域内的无线通信设备的协议是否具有类似协议来继续。 该方法通过确定多个发射天线来继续。 该方法继续，当近端区域内的无线通信设备的协议类似协议时，使用符号的循环移位，音调的循环移位，稀疏音分配等的格式化无线通信的帧的前导码， 和基于发射天线数量的稀疏符号分配。

公开(公告)号：US20090219847A1

公开(公告)日：2009-09-03

申请号：US12464205

申请日：2009-05-12

申请人： Matthew J. Fischer

发明人： Matthew J. Fischer

IPC分类号： G08C17/02 ,  H04W4/00 ,  H04B7/00

CPC分类号： H04W52/0212 ,  Y02D70/142

摘要： A method and apparatus for communicating information between networked devices. Various aspects of the present invention may comprise, for example, a first networked device communicating information over a wireless communication network to a second networked device having power-save mode capability. The first networked device receives an incoming message from the second networked device. A first outgoing message is transmitted to the second networked device prior to transmitting a previously queued outgoing message. A second outgoing message is transmitted to the second networked device prior to the previously queued outgoing message being transmitted. Information may be communicated to the second networked device in a particular manner that depends on whether the second networked device has power-save capability. Communication medium access may be performed in a particular manner, depending on whether the second networked device has power-save capability.

摘要翻译： 一种用于在联网设备之间传送信息的方法和设备。 本发明的各个方面可以包括例如通过无线通信网络向具有省电模式能力的第二网络设备传送信息的第一联网设备。 第一联网设备从第二网络设备接收传入消息。 在发送先前排队的传出消息之前，将第一传出消息发送到第二联网设备。 在发送先前排队的传出消息之前，将第二传出消息发送到第二联网设备。 信息可以以取决于第二联网设备是否具有节电能力的特定方式传送到第二联网设备。 根据第二联网设备是否具有节电能力，可以以特定方式执行通信介质访问。

公开(公告)号：US07324468B2

公开(公告)日：2008-01-29

申请号：US10770171

申请日：2004-02-02

申请人： Matthew J. Fischer

发明人： Matthew J. Fischer

IPC分类号： G08C17/00 ,  H04L12/413

CPC分类号： H04L12/413 ,  H04L12/12 ,  H04W52/0219 ,  H04W74/08 ,  Y02D50/20 ,  Y02D50/40 ,  Y02D50/42 ,  Y02D70/142 ,  Y10S370/912

摘要： A method and apparatus for accessing, controlling and utilizing a network communication medium. Various aspects of the present invention may comprise a first networked device with power-save capability. The first networked device may acquire control of a communication medium utilizing a medium access protocol, which may be contention-based. The first networked device may utilize the communication medium to communicate information to a second networked device. The first networked device may transfer control of the communication medium to the second networked device, whereby the second networked device may control the communication medium without having to acquire control of the communication medium by utilizing the medium access protocol. The second networked device may utilize the communication medium to communicate information to the first networked device while maintaining control over the communication medium. The second networked device may have buffered such information for delayed delivery to the first networked device.

摘要翻译： 一种用于访问，控制和利用网络通信介质的方法和装置。 本发明的各个方面可以包括具有省电能力的第一联网设备。 第一网络设备可以利用可能是基于争用的介质访问协议来获取对通信介质的控制。 第一网络设备可以利用通信介质将信息传送到第二网络设备。 第一联网设备可以将通信介质的控制传送到第二网络设备，由此第二网络设备可以控制通信介质，而不必通过利用介质访问协议获取对通信介质的控制。 第二联网设备可以利用通信介质来向第一网络设备传送信息，同时保持对通信介质的控制。 第二联网设备可能已经缓冲了用于延迟传送到第一联网设备的信息。

公开(公告)号：US06937571B1

公开(公告)日：2005-08-30

申请号：US09597370

申请日：2000-06-19

申请人： Yatin R. Acharya ,  Philip J. Keller ,  Matthew J. Fischer

发明人： Yatin R. Acharya ,  Philip J. Keller ,  Matthew J. Fischer

IPC分类号： H04J3/14 ,  H04L12/26

CPC分类号： H04L43/50

摘要： A method of testing a network physical layer device (PHY) having a media independent interface (MII) includes sending information between the PHY and a tester along the data buses of the MII. The information may be sent in the form of special frames, the special frames being sent from the tester to the PHY including an identifier. The PHY includes means for detecting the identifier, for extracting control information from the special frames, and for using the control information to execute write operations to and read operations accessing the memory registers of the PHY, and for sending information to the tester. The information may be passed between the PHY at an exemplary rate of 100 Mb/sec.

摘要翻译： 一种测试具有媒体独立接口（MII）的网络物理层设备（PHY）的方法包括沿着MII的数据总线在PHY和测试仪之间发送信息。 信息可以以特殊帧的形式发送，特殊帧从测试器发送到包括标识符的PHY。 PHY包括用于检测标识符的装置，用于从特殊帧中提取控制信息，以及使用控制信息来执行访问PHY的存储寄存器的读操作和读操作，以及向测试者发送信息。 信息可以以100Mb / sec的示例性速率在PHY之间传递。

公开(公告)号：US5760730A

公开(公告)日：1998-06-02

申请号：US826585

申请日：1997-04-03

申请人： Matthew J. Fischer ,  Eugen Gershon

发明人： Matthew J. Fischer ,  Eugen Gershon

IPC分类号： H03M1/10 ,  H03M1/36 ,  H03M1/38

CPC分类号： H03M1/367 ,  H03M1/1019

摘要： A circuit is provided to carry out conversion and an analog signal into a digital signal, simultaneously with compression of the analog signal. An input analog signal buffered by a sample-and-hold circuit is supplied to a chain of amplifier stages having equal gains greater than 1. A set of comparators compares the output signal of each amplifier stage with a reference value. As soon as the output of any amplifier stage exceeds the reference value, an output of the corresponding comparator becomes active indicating the number of amplifier stages that were required to make the input signal higher than the reference value. A digital output device uses the comparator output signals to produce a digital signal proportional to the input signal level. As the amplifier chain is arranged so as to increase its total gain for a lower level of the input analog signal with respect to its total gain for a higher level of the input analog signal, the conversion circuit compresses the input analog signal simultaneously with its conversion into the digital signal.

摘要翻译： 提供一个电路，用于与压缩模拟信号同时进行数字信号转换和模拟信号。 由采样和保持电路缓冲的输入模拟信号被提供给具有大于1的相等增益的放大器级链。一组比较器将每个放大器级的输出信号与参考值进行比较。 一旦任何放大器级的输出超过参考值，相应比较器的输出将变为有效，指示使输入信号高于参考值所需的放大器级数。 数字输出设备使用比较器输出信号产生与输入信号电平成比例的数字信号。 由于放大器链被布置成为输入模拟信号的较低电平相对于输入模拟信号的较高电平的总增益增加其总增益，所以转换电路在其转换时同时压缩输入模拟信号 进入数字信号。

公开(公告)号：US5533203A

公开(公告)日：1996-07-02

申请号：US437068

申请日：1995-05-09

申请人： Matthew J. Fischer ,  Glen Gibson ,  Jeffrey Dwork ,  Thomas J. Runaldue

发明人： Matthew J. Fischer ,  Glen Gibson ,  Jeffrey Dwork ,  Thomas J. Runaldue

IPC分类号： G06F13/00 ,  G06F13/12 ,  H04L12/56 ,  G06F15/173

CPC分类号： H04L49/9052 ,  G06F13/128 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9021 ,  H04L49/9057 ,  H04L49/9073 ,  H04L49/9078

摘要： A system is provided for ensuring that a ethernet controller operates to optimize bus latency and central processing unit (CPU) utilization in a network environment when reviewing data packets. Through the efficient use of a plurality of buffer memories and a driver, the bus utilization in conjunction with the controller the system provides for the receipt and transfer of data packets from the ethernet controller during the latency period of the network. In so doing, the overall performance of the network is enhanced.

摘要翻译： 提供了一种系统，用于确保以太网控制器在查看数据包时可以在网络环境中优化总线延迟和中央处理单元（CPU）利用率。 通过有效利用多个缓冲存储器和驱动器，总线利用与控制器结合，该系统在网络的等待时间期间提供从以太网控制器接收和传送数据分组。 这样做，网络的整体性能得到提升。

公开(公告)号：US08799692B2

公开(公告)日：2014-08-05

申请号：US12888344

申请日：2010-09-22

申请人： Matthew J. Fischer ,  Qi Wang ,  Raymond Hayes

发明人： Matthew J. Fischer ,  Qi Wang ,  Raymond Hayes

IPC分类号： G06F1/32 ,  G06F15/16 ,  G06F15/173 ,  G08C17/00 ,  H04H20/71

CPC分类号： G06F1/3287 ,  G06F1/3209 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0225 ,  H04W52/0229 ,  H04W52/0235 ,  H04W52/0241 ,  Y02D10/171 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

摘要： Aspects in a method and system for no buffered traffic indication for wireless local area network (WLAN) power save may enable a peer communication device to determine a time duration for remaining in an active operating state based on communication with other peer communication devices. In one aspect, a given peer communication device may determine that it has no data to communicate to any of the remaining peer communication devices. The given communication device may communicate to each of the peer communication devices that there is no data to transmit to the peer communication device. Each of the peer communication devices may communicate that there is no data to transmit to the given peer communication device. Based on the communications, the given peer communication device may exit the active operating state and enter a low power operating state.

摘要翻译： 用于无线局域网（WLAN）功率节省的无缓冲业务指示的方法和系统中的方面可以使得对等通信设备可以基于与其他对等通信设备的通信来确定用于保持在主动操作状态的持续时间。 在一个方面，给定的对等通信设备可以确定其没有数据与任何剩余的对等通信设备通信。 给定的通信设备可以向每个对等通信设备通信没有数据传送到对等通信设备。 每个对等通信设备可以通信没有数据传送给给定的对等通信设备。 基于通信，给定的对等通信设备可以退出活动操作状态并进入低功率操作状态。

公开(公告)号：US20120236777A1

公开(公告)日：2012-09-20

申请号：US13479434

申请日：2012-05-24

申请人： Matthew J. Fischer

发明人： Matthew J. Fischer

IPC分类号： H04W4/06

CPC分类号： H04L12/1868

摘要： Aspects of multicast retry in a communication network includes a terminal device serving as an originator station device within a multicast group configured to provide transmission of one or more protocol data units via a network utilizing a multicast address. Subsequent to transmission of the one or more protocol data units, the terminal device may receive an acknowledgment protocol data unit via one of many destination terminal devices configured to serve as a responder. The received acknowledgment protocol data unit provides a basis to determine whether the transmitted protocol data units were successfully received by one or more destination terminal devices. One or more of the protocol data units may be retransmitted based on the determination. Also, following retransmission, a supplemental acknowledgment protocol data unit may be provided via a destination terminal device of the destination terminal devices exclusive of the responder destination terminal device.

摘要翻译： 通信网络中的多播重试的方面包括作为组播组内的发起者站设备的终端设备，被配置为经由网络利用组播地址提供一个或多个协议数据单元的传输。 在发送一个或多个协议数据单元之后，终端设备可以经由被配置为用作响应者的许多目的地终端设备中的一个接收确认协议数据单元。 所接收的确认协议数据单元提供确定发送的协议数据单元是否被一个或多个目的地终端设备成功接收的基础。 可以基于确定来重传一个或多个协议数据单元。 此外，在重发后，补充确认协议数据单元也可以经由目的地终端装置，不包括响应方目的地终端装置。