公开(公告)号：US08290503B2

公开(公告)日：2012-10-16

申请号：US12695314

申请日：2010-01-28

Applicant: Ahmed K. Sadek ,  Alexei Gorokhov ,  Stephen J. Shellhammer

Inventor： Ahmed K. Sadek ,  Alexei Gorokhov ,  Stephen J. Shellhammer

IPC: H04W72/00

CPC classification number: H04W72/082 ,  H04W16/14 ,  H04W72/0406

Abstract: Multichannel dynamic frequency selection in wireless networks begins with an access point for a wireless network broadcasting a list of unused channels that are available for communication within the area served by the access point. The various access terminals within this service area receive the broadcast and measure various interference characteristics of each of the channels in the list. The access terminals then send this interference information to the access point, which compiles a matrix of interference information that is associated with the quality of each signal as related to each access terminal. Using this information, the access point selects the appropriate channels to serve the most number of access terminals at the highest possible channel qualities.

Abstract translation: 无线网络中的多信道动态频率选择开始于无线网络的接入点，该接入点广播可用于由接入点服务的区域内的通信的未使用信道的列表。 该服务区域内的各种接入终端接收广播并测量列表中每个频道的各种干扰特性。 接入终端然后将该干扰信息发送到接入点，该接入点编译与每个接入终端相关的每个信号的质量相关联的干扰信息矩阵。 使用该信息，接入点选择适当的信道以尽可能高的信道质量来服务于最多的接入终端。

公开(公告)号：US20120238226A1

公开(公告)日：2012-09-20

申请号：US13398842

申请日：2012-02-17

Applicant: Sameer Vermani ,  Santosh Paul Abraham ,  Vincent Knowles Jones ,  Stephen J. Shellhammer ,  Didier Johannes Richard Van Nee ,  Albert van Zelst ,  Rahul Tandra

Inventor： Sameer Vermani ,  Santosh Paul Abraham ,  Vincent Knowles Jones ,  Stephen J. Shellhammer ,  Didier Johannes Richard Van Nee ,  Albert van Zelst ,  Rahul Tandra

IPC: H04B1/04 ,  H04B1/16

CPC classification number: H04L5/0039 ,  H04L5/0007 ,  H04L27/0006 ,  H04W16/14

Abstract: Methods, systems, and/or devices are provided that permit data transmissions over unused television channels. An unused channel within a television broadcast frequency spectrum is first identified. A downclocked waveform (for data transmission) is then generated by applying a factor to a clock that causes a waveform bandwidth to be reduced from a first bandwidth to a second bandwidth, wherein the second bandwidth of the downclocked waveform is less than a channel bandwidth for the identified unused channel. The downclocked waveform may then be configured so that it coexists with a larger waveform having a third bandwidth that is greater than the channel bandwidth. The downclocked waveform is then wirelessly transmitted from the transmitter device over the identified unused channel.

Abstract translation: 提供允许在未使用的电视频道上进行数据传输的方法，系统和/或设备。 首先确定电视广播频谱内未使用的频道。 然后通过对使时钟产生波形带宽从第一带宽减小到第二带宽的因子来产生用于数据传输的倒频波形，其中，所述低频波形的第二带宽小于 识别的未使用的通道。 然后可以配置倒频波形，使得其与具有大于信道带宽的第三带宽的较大波形共存。 然后，通过所识别的未使用的信道，从发射机设备无线地发射该衰减的波形。

公开(公告)号：US08027690B2

公开(公告)日：2011-09-27

申请号：US12186500

申请日：2008-08-05

Applicant: Stephen J. Shellhammer

Inventor： Stephen J. Shellhammer

IPC: H04W72/00

CPC classification number: H04W16/14 ,  H04B17/391 ,  H04K3/822 ,  H04K2203/12

Abstract: Methods and apparatus for sensing the presence of a transmission signal type within a wireless channel in a wireless communication system, such as those including the use of wireless microphones, are described. Sensing the transmission signal type includes calculating a spectral density estimate of a signal on the wireless channel. A first test value, derived from the calculated spectral density estimate, is compared to a first threshold. A preliminary determination of the presence of the transmission signal type is made if the first test value exceeds the first threshold. Sensing the presence of the signal type after preliminary determination of the presence of the signal type is made by determining that an observed spectral density of a prescribed signal added to the signal on the wireless channel matches a model estimate of the spectral density of the prescribed signal to a sufficient degree.

Abstract translation: 描述了在无线通信系统（例如包括使用无线麦克风的那些）中的用于感测无线信道内的传输信号类型的存在的方法和装置。 感测传输信号类型包括计算无线信道上的信号的频谱密度估计。 将从计算的频谱密度估计导出的第一测试值与第一阈值进行比较。 如果第一测试值超过第一阈值，则进行传输信号类型的存在的初步确定。 通过确定添加到无线信道上的信号的规定信号的观测频谱密度与规定信号的频谱密度的模型估计相匹配来进行信号类型的存在的初步确定之后，感测出信号类型的存在 足够的程度。

公开(公告)号：US20100184435A1

公开(公告)日：2010-07-22

申请号：US12357797

申请日：2009-01-22

Applicant: Stephen J. Shellhammer ,  Ahmed K. Sadek ,  Cong T. Nguyen

Inventor： Stephen J. Shellhammer ,  Ahmed K. Sadek ,  Cong T. Nguyen

IPC: H04W36/00 ,  H04W72/04

CPC classification number: H04W36/385

Abstract: Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.

Abstract translation: 用于提供无线扩展网络的方法和装置。 一方面，一种装置包括：扩展电路，被配置为识别由主网络和扩展网络中的一个提供的所选择的上行链路（UL）信道和选择的下行链路（DL）信道中的至少一个，以及处理电路 被配置为切换到所选择的UL和DL信道中的至少一个。 一种装置包括用于获得与主网络和扩展网络相关联的链路参数的装置，用于基于所述链路参数识别在主网络和扩展网络上分配了传输信道的客户端的装置，以及用于向客户端发送消息的装置 以指示分配的传输信道。

公开(公告)号：US07039358B1

公开(公告)日：2006-05-02

申请号：US09714803

申请日：2000-11-16

Applicant: Stephen J. Shellhammer ,  Jacob Sharony ,  Anthony D. Biuso ,  Sean A. Connolly ,  William Sackett ,  Joseph Cabana ,  Patrick Tilley ,  Robert Beach

Inventor： Stephen J. Shellhammer ,  Jacob Sharony ,  Anthony D. Biuso ,  Sean A. Connolly ,  William Sackett ,  Joseph Cabana ,  Patrick Tilley ,  Robert Beach

IPC: H04B7/00

CPC classification number: H04W16/14 ,  Y02D70/10

Abstract: Techniques are provided for frequency coordination among two different wireless network protocols, such as the IEEE 802.11 and Bluetooth protocols, operating in proximity with one another. Coordination is accomplished by the use of a first radio transceiver operating in accordance with a first communication protocol (which may be the 802.11 protocol) and using a frequency band (which may be the 2.4 GHz band), a base station connected to a wired network and operating in accordance with the first communication protocol, a second radio transceiver operating in accordance with a second communication protocol (which may be the Bluetooth protocol) and using the frequency band, and a coordinator associated with the base station for, in turn, activating the first radio transceiver, deactivating the first radio transceiver, activating the second radio transceiver, and deactivating the second radio transceiver.

Abstract translation: 提供技术用于两个不同的无线网络协议之间的频率协调，诸如IEEE 802.11和蓝牙协议，彼此靠近地操作。 通过使用根据第一通信协议（可以是802.11协议）和使用频带（其可以是2.4GHz频带）操作的第一无线电收发机，连接到有线网络的基站来实现协调 并且根据第一通信协议进行操作，根据第二通信协议（可以是蓝牙协议）和使用该频带操作的第二无线电收发机以及与该基站相关联的协调器，从而进行激活 所述第一无线电收发器，去激活所述第一无线电收发器，激活所述第二无线电收发器，以及停用所述第二无线电收发器。

公开(公告)号：US06853293B2

公开(公告)日：2005-02-08

申请号：US10253177

申请日：2002-09-24

Applicant: Jerome Swartz ,  Michael Slutsky ,  Simon Bard ,  Stephen J. Shellhammer ,  James Connelly ,  Margaret L. Hetfield ,  Jacob Sharony ,  Michael A. Ramputi ,  Paul R. Poloniewicz ,  Joseph Katz ,  Robert E. Beach

Inventor： Jerome Swartz ,  Michael Slutsky ,  Simon Bard ,  Stephen J. Shellhammer ,  James Connelly ,  Margaret L. Hetfield ,  Jacob Sharony ,  Michael A. Ramputi ,  Paul R. Poloniewicz ,  Joseph Katz ,  Robert E. Beach

IPC: G06F1/16 ,  H04Q1/00

CPC classification number: G06F1/1698 ,  G06F1/163 ,  G06F1/1662 ,  G06F1/1684

Abstract: A portable data input or computer system includes an input/output device such as a keyboard and a display, another data input device such as an optical bar code scanner, and a data processor module. To scan bar code type indicia, the operator points the scanner at the bar code and triggers the scanner to read the indicia. All the system components are distributed on an operator's body and together form a personal area system (PAS). Components may include a scanner or imager, a wrist unit, a headpiece including an eyepiece display, speaker and a microphone. Components within a particular PAS communicate with each other over a personal area network (PAN). Individual PASs may be combined into a network of PASs called a PAS cluster. PASs in a particular PAS cluster can communicate with each other over another wireless communication channel. Individual PAS can gain access to a Local Area Network (LAN) and/or a Wide Area Network (WAN) via an access point. Individual PASs can use devices, such as servers and PCs situated either on the LAN or the WAN to retrieve and exchange information. Individual PAS components can provide automatic speech and image recognition. PAS components may also act a telephone, a pager, or any other communication device having access to a LAN or a WAN. Transmission of digitized voice and/or video data can be achieved over an Internet link.

Abstract translation: 便携式数据输入或计算机系统包括诸如键盘和显示器之类的输入/输出设备，诸如光学条形码扫描器的另一数据输入设备和数据处理器模块。 要扫描条形码类型标记，操作员将扫描仪指向条形码并触发扫描仪读取标记。 所有系统组件分布在操作员的身体上，并且一起形成个人区域系统（PAS）。 组件可以包括扫描器或成像器，腕部单元，包括目镜显示器，扬声器和麦克风的头戴耳机。 特定PAS中的组件通过个人区域网络（PAN）彼此通信。 个人PAS可以组合成称为PAS集群的PAS网络。 特定PAS集群中的PAS可以通过另一无线通信信道彼此通信。 个人PAS可以通过接入点访问局域网（LAN）和/或广域网（WAN）。 个人PAS可以使用设备，如位于LAN或WAN上的服务器和PC来检索和交换信息。 个人PAS组件可以提供自动语音和图像识别。 PAS组件还可以对电话，寻呼机或具有访问LAN或WAN的任何其他通信设备起作用。 数字化语音和/或视频数据的传输可以通过因特网链路实现。

公开(公告)号：US09281924B2

公开(公告)日：2016-03-08

申请号：US13445753

申请日：2012-04-12

Applicant: Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Hemanth Sampath ,  Didier Johannes Richard Van Nee ,  Sameer Vermani ,  Stephen J. Shellhammer

Inventor： Santosh Paul Abraham ,  Vincent Knowles Jones, IV ,  Hemanth Sampath ,  Didier Johannes Richard Van Nee ,  Sameer Vermani ,  Stephen J. Shellhammer

IPC: H04W4/00 ,  H04L5/00 ,  H04W72/04 ,  H04W16/14 ,  H04W84/12

CPC classification number: H04L5/0023 ,  H04L5/0044 ,  H04W16/14 ,  H04W72/044 ,  H04W72/0453 ,  H04W84/12

Abstract: Certain aspects of the present disclosure relate to a technique for generating 40+40 MHz and 40+40+40+40 MHz transmission modes for IEEE 802.11 wireless communications systems using Very High Throughput (VHT) waveforms with application to Television White Space (TVWS) spectrum.

Abstract translation: 本公开的某些方面涉及用于为应用于电视白色空间（TVWS）的非常高吞吐量（VHT）波形的IEEE 802.11无线通信系统生成40 + 40MHz和40 + 40 + 40 + 40MHz传输模式的技术。 光谱。

公开(公告)号：US09124347B2

公开(公告)日：2015-09-01

申请号：US13438355

申请日：2012-04-03

Applicant: Santosh Paul Abraham ,  Stephen J. Shellhammer

Inventor： Santosh Paul Abraham ,  Stephen J. Shellhammer

IPC: H04B1/38 ,  H04W16/14 ,  H04W48/14

CPC classification number: H04B1/38 ,  H04W16/14 ,  H04W48/14

Abstract: Systems, methods, and devices to communicate in a white space are described herein. In some aspects, wireless communication transmitted in the white space authorizes an initial transmission by a device. The wireless communication may include power information for determining a power at which to transmit the initial transmission. The initial transmission may be used to request information identifying one or more channels in the white space available for transmitting data.

Abstract translation: 这里描述了在白色空间中通信的系统，方法和设备。 在一些方面，在白色空间中发送的无线通信授权设备的初始传输。 无线通信可以包括用于确定发送初始传输的功率的功率信息。 初始传输可以用于请求识别可用于发送数据的空白区域中的一个或多个信道的信息。

公开(公告)号：US09107078B2

公开(公告)日：2015-08-11

申请号：US13349498

申请日：2012-01-12

Applicant: Stephen J. Shellhammer ,  Cong Shen ,  Rahul Tandra ,  Santosh Paul Abraham ,  Sameer Vermani ,  Hemanth Sampath

Inventor： Stephen J. Shellhammer ,  Cong Shen ,  Rahul Tandra ,  Santosh Paul Abraham ,  Sameer Vermani ,  Hemanth Sampath

IPC: H04B1/00 ,  H04W16/14 ,  H04W84/12

CPC classification number: H04W16/14 ,  H04W84/12

Abstract: Certain aspects of the present disclosure relate to techniques for supporting television white space (TVWS) communication. In an aspect of the present disclosure, a low-rate TVWS enabler (Mode II wireless communication device) may provide initial enablement for all Mode I devices (e.g., access points and user terminals), as well as it may transmit a contact verification signal (CVS) on a regular basis to keep the Mode I devices enabled for the TVWS communication.

Abstract translation: 本公开的某些方面涉及用于支持电视空白（TVWS）通信的技术。 在本公开的一方面，低速率TVWS使能器（模式II无线通信设备）可以为所有模式I设备（例如，接入点和用户终端）提供初始启用，并且其可以发送接触验证信号 （CVS），以保持模式I设备启用TVWS通信。

公开(公告)号：US08997165B2

公开(公告)日：2015-03-31

申请号：US13609198

申请日：2012-09-10

Applicant: Andrea Garavaglia ,  Juan Montojo ,  Christian Pietsch ,  Stephen J. Shellhammer ,  Nicola Varanese

Inventor： Andrea Garavaglia ,  Juan Montojo ,  Christian Pietsch ,  Stephen J. Shellhammer ,  Nicola Varanese

IPC: H04N7/173 ,  H04N21/61

CPC classification number: H04N21/61 ,  H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0064 ,  H04Q2011/0079

Abstract: A media converter is to be coupled to an optical line terminal via an optical link and to a plurality of coax network units via coax links in a cable plant. The media converter includes an optical physical-layer device to receive and transmit optical signals via the optical link and a coax physical-layer device to receive and transmit electrical signals via the coax links. The media converter also includes an implementation of an optical-coax convergence layer to schedule transmissions of electrical signals from the plurality of coax network units by allocating coax resources among the plurality of coax network units in accordance with resource allocation for the optical link.

Abstract translation: 媒体转换器将经由光链路耦合到光线路终端，并通过电缆设备中的同轴电缆连接到多个同轴电缆网络单元。 媒体转换器包括用于经由光链路接收和发送光信号的光物理层设备和同轴电缆物理层设备，以经由同轴电缆链路接收和发送电信号。 媒体转换器还包括光同轴会聚层的实现，以根据光链路的资源分配来分配多个同轴电缆网络单元之间的同轴电缆资源来调度来自多个同轴电缆网络单元的电信号的传输。