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61.发明申请Method and system for providing visually related content description to the physical layer 审中-公开用于向物理层提供与视觉相关的内容描述的方法和系统公开(公告)号：US20080025196A1
公开(公告)日：2008-01-31
申请号：US11492391
申请日：2006-07-25
IPC分类号： H04J11/00
CPC分类号： H04L29/06027 , H04L65/607 , H04W80/00 , H04W88/02
摘要： Aspects of a method and system for providing visually related content description to physical layer are provided. A MAC layer and/or a PHY layer in a wireless communication device may be controlled for processing at least one media object in an audiovisual scene based on metadata information that corresponds to the audiovisual scene. The metadata information may result from, for example, MPEG-4 encoding of the audiovisual scene. Each media object may be forward error corrected based on a determined priority level, such as foreground and background priorities, that results from the metadata information. In this regard, the number of bits utilized for protection and/or the RF modulated scheme may be selected in accordance with the priority level. The RF modulation may be, for example, QPSK modulation or 16 QAM modulation. The metadata information and the processed media objects may then be wireless communicated.
摘要翻译： 提供了一种用于向物理层提供与视觉相关的内容描述的方法和系统的方面。 可以控制无线通信设备中的MAC层和/或PHY层，用于基于与视听场景相对应的元数据信息来处理视听场景中的至少一个媒体对象。 元数据信息可以由例如视听场景的MPEG-4编码产生。 可以基于由元数据信息产生的确定的优先级，诸如前景和背景优先级，来对每个媒体对象进行前向纠错。 在这方面，可以根据优先级来选择用于保护和/或RF调制方案的比特数。 RF调制可以是例如QPSK调制或16QAM调制。 然后可以无线地传送元数据信息和经处理的媒体对象。
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公开(公告)号：US07203511B2
公开(公告)日：2007-04-10
申请号：US10760878
申请日：2004-01-20
IPC分类号： H04B7/00
CPC分类号： H04W52/24 , H04B17/318 , H04W52/226
摘要： A method for controlling transmit power of a radio frequency integrated circuit begins by sampling a continuous transmit signal strength indication (TSSI) for a predetermined number of sampling cycles to produce a plurality of TSSI samples. The process then proceeds to determine a normalized TSSI from the plurality of TSSI samples. The processing continues by converting the normalized TSSI into an estimated transmit power. The process continues by comparing the estimated transmit power with a desired transmit power. The processing then continues by determining a transmit power error based on the comparison of the estimated transmit power with the desired power. The process then continues by adjusting gain of a transmit section of the radio frequency integrated circuit based on the transmit power error such that the estimated transmit power substantially matches the desired transmit power.
摘要翻译： 一种用于控制射频集成电路的发射功率的方法是通过对连续的发射信号强度指示（TSSI）采样预定数量的采样周期来产生多个TSSI样本开始的。 然后，该过程继续以从多个TSSI样本中确定归一化TSSI。 通过将归一化TSSI转换成估计的发射功率继续处理。 该过程通过将估计的发射功率与期望的发射功率进行比较来继续。 然后通过基于估计的发射功率与期望功率的比较来确定发射功率误差来继续处理。 然后，该过程基于发射功率误差调整射频集成电路的发射部分的增益，使得所估计的发射功率基本上与期望的发射功率一致。
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公开(公告)号：US09516483B2
公开(公告)日：2016-12-06
申请号：US10857540
申请日：2004-05-28
摘要： A method for wireless communication between stations of differing protocols begins by determining whether protocols of target stations of a wireless communication are different than a protocol of a source station. The method continues by, when at least one of the target stations has a different protocol than the protocol of the source station, determining whether the wireless communication is a direct wireless communication or an indirect wireless communication. The method continues with the source station transmitting a frame to an access point, wherein the frame is formatted in accordance with the protocol of the source station, when the wireless communication is the indirect wireless communication. The method continues with the access point converting the frame into at least one alternate frame based on the protocol of the at least one of the target stations having the different protocol. The method continues with the access point transmitting the at least one alternate frame to the at least one of the target stations.
摘要翻译： 用于不同协议的站之间的无线通信的方法通过确定无线通信的目标站的协议是否不同于源站的协议来开始。 当至少一个目标站具有与源站的协议不同的协议时，该方法继续，确定无线通信是直接无线通信还是间接无线通信。 该方法继续源站向接入点发送帧，其中当无线通信是间接无线通信时，根据源站的协议对帧进行格式化。 该方法继续接入点，基于具有不同协议的至少一个目标站的协议将帧转换成至少一个替代帧。 该方法继续接入点将至少一个替代帧发送到目标站中的至少一个。
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64.发明授权Method and system for redundancy-based decoding of video content in a wireless system 有权无线系统中视频内容的基于冗余解码的方法和系统公开(公告)号：US08948309B2
公开(公告)日：2015-02-03
申请号：US11686876
申请日：2007-03-15
CPC分类号： H04N19/00545 , H04L1/0054 , H04L1/1671 , H04L1/1819 , H04N19/12 , H04N19/44 , H04N19/46
摘要： Aspects of a method and system for redundancy-based decoding of video content in a wireless system are provided. A wireless receiver may determine whether a received multimedia data stream comprises video content and may select a redundancy-based decoder when video content is detected. The wireless receiver may be a wireless local area network (WLAN) receiver or a cellular receiver. Video content may be indicated by at least one flag in a preamble or a reserved field of the received multimedia data. The redundancy-based decoder may be a Viterbi decoder. The wireless receiver may enable a standard Viterbi decoder to decode portions of the multimedia data that do not comprise video content. The wireless receiver may generate at least one signal to select the redundancy-based decoder or the standard Viterbi decoder.
摘要翻译： 提供了一种用于无线系统中的视频内容的基于冗余解码的方法和系统的方面。 无线接收机可以确定所接收的多媒体数据流是否包括视频内容，并且当检测到视频内容时可以选择基于冗余的解码器。 无线接收机可以是无线局域网（WLAN）接收机或蜂窝接收机。 视频内容可以由所接收的多媒体数据的前同步码或保留字段中的至少一个标志指示。 基于冗余的解码器可以是维特比解码器。 无线接收器可以使标准维特比解码器解码不包括视频内容的多媒体数据的部分。 无线接收器可以产生至少一个信号以选择基于冗余的解码器或标准维特比解码器。
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公开(公告)号：US08938032B2
公开(公告)日：2015-01-20
申请号：US13745994
申请日：2013-01-21
申请人： Jason A. Trachewsky
发明人： Jason A. Trachewsky
IPC分类号： H04L27/06 , H04B1/707 , H04J13/00 , H04K1/00 , H04L5/02 , H04L5/06 , H04W88/04 , H04L27/26 , H04W4/18 , H04W84/12
CPC分类号： H04B1/707 , H04J13/00 , H04K1/00 , H04L5/026 , H04L5/06 , H04L27/2626 , H04L27/2647 , H04W4/18 , H04W84/12 , H04W88/04
摘要： A system for implementing an orthogonal frequency division multiplexing scheme and providing an improved range extension. The system includes a transmitter for transmitting data to a receiver. The transmitter includes a symbol mapper for generating a symbol for each of a plurality of subcarriers and a spreading module for spreading out the symbol on each of the plurality of subcarriers by using a direct sequence spread spectrum. The symbol on each of the plurality of subcarriers is spread by multiplying the symbol by predefined length sequences. The receiver includes a de-spreader module for de-spreading the symbols on each of the plurality of subcarriers. The de-spreader module includes a simple correlator receiver for obtaining maximum detection. The correlator produces an output sequence of a same length as an input sequence and the de-spreader module uses a point of maximum correlation on the output sequence to obtain a recovered symbol.
摘要翻译： 一种用于实现正交频分复用方案并提供改进的范围扩展的系统。 该系统包括用于向接收机发送数据的发射机。 发射机包括用于生成多个子载波中的每一个的符号的符号映射器和用于通过使用直接序列扩展频谱在多个子载波中的每一个上扩展符号的扩展模块。 通过将符号乘以预定义的长度序列来扩展多个子载波中的每一个上的符号。 接收机包括用于对多个子载波中的每一个上的符号进行解扩的解扩机模块。 解扩器模块包括用于获得最大检测的简单相关器接收器。 相关器产生与输入序列相同长度的输出序列，并且解扩器模块使用输出序列上的最大相关点来获得恢复的符号。
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66.发明授权公开(公告)号：US08842624B2
公开(公告)日：2014-09-23
申请号：US13492291
申请日：2012-06-08
申请人： Jason A. Trachewsky
发明人： Jason A. Trachewsky
摘要： Provided is operation of a device in a plurality of frequency bands. A packet based network selects a frequency band of operation by determining a quality indicator. The WLAN further selects a communication protocol. WLAN devices include a baseband processor interface and a first radio for receiving the digital data and for transmitting RF signals in first and second frequency bands of a plurality of frequency bands, and for producing corresponding digital data to the baseband processor interface.
摘要翻译： 提供了多个频带中的设备的操作。 基于分组的网络通过确定质量指标来选择操作频带。 WLAN进一步选择通信协议。 WLAN设备包括基带处理器接口和用于接收数字数据并用于在多个频带的第一和第二频带中发送RF信号的第一无线电装置，以及用于向基带处理器接口产生相应的数字数据。
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公开(公告)号：US08797146B2
公开(公告)日：2014-08-05
申请号：US13092586
申请日：2011-04-22
CPC分类号： G06K19/0708 , G06K19/07749
摘要： An autonomous battery-free microwave frequency communication device which includes a capacitance, at least one antenna, a microwave energy harvesting system, a microwave frequency transceiver, and a control system. The energy harvesting system is configured to harvest and store microwave energy received via the antenna onto the capacitance. The transceiver is empowered by energy stored on the capacitance, and is configured to autonomously generate a microwave frequency carrier and to autonomously transmit information using the microwave frequency carrier according to a predetermined communications protocol via the antenna. The control system is empowered by energy stored on the capacitance, and is configured to provide information for transmission. Energy may be harvested from various communication forms, such as wireless network protocols or cellular communications. The frequency band from which energy is harvested may differ from the frequency band used for communications. The energy storage enables autonomous communications with external devices according to common or standard wireless communication protocols.
摘要翻译： 一种自主无电池的微波频率通信装置，其包括电容，至少一个天线，微波能量收集系统，微波频率收发器和控制系统。 能量收集系统被配置为收集并存储通过天线接收的微波能量到电容上。 收发器由存储在电容上的能量授权，并且被配置为自主地生成微波频率载波并且使用微波频率载波来根据预定的通信协议经由天线自主发送信息。 控制系统通过存储在电容上的能量赋予能力，并且被配置为提供用于传输的信息。 可以从诸如无线网络协议或蜂窝通信的各种通信形式收获能量。 收集能量的频带可能与用于通信的频带不同。 能量存储可以根据通用或标准的无线通信协议实现与外部设备的自主通信。
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68.发明授权Feedback of channel information in a closed loop beamforming wireless communication system 有权闭环波束成形无线通信系统中信道信息的反馈公开(公告)号：US08743994B2
公开(公告)日：2014-06-03
申请号：US13729881
申请日：2012-12-28
IPC分类号： H04W80/00
CPC分类号： H04W80/00 , H04B7/0421 , H04B7/0617 , H04B7/0628 , H04B7/0634 , H04L1/0026 , H04L1/0045 , H04L1/0068 , H04L1/06 , H04L27/2601
摘要： A method for feeding back transmitter beamforming information from a receiving wireless communication device to a transmitting wireless communication device includes a receiving wireless communication device receiving a preamble sequence from the transmitting wireless device. The receiving wireless device estimates a channel response based upon the preamble sequence and then determines an estimated transmitter beamforming unitary matrix based upon the channel response and a receiver beamforming unitary matrix. The receiving wireless device then decomposes the estimated transmitter beamforming unitary matrix to produce the transmitter beamforming information and then wirelessly sends the transmitter beamforming information to the transmitting wireless device.
摘要翻译： 将发射机波束形成信息从接收无线通信设备反馈到发射无线通信设备的方法包括从发射无线设备接收前同步码序列的接收无线通信设备。 接收无线设备基于前导序列估计信道响应，然后基于信道响应和接收机波束成形单位矩阵来确定估计的发射机波束成形单位矩阵。 接收无线设备然后分解估计的发射机波束成形单位矩阵以产生发射机波束形成信息，然后将发射机波束成形信息无线发送到发射无线设备。
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公开(公告)号：US20120321015A1
公开(公告)日：2012-12-20
申请号：US13593745
申请日：2012-08-24
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： H04B7/06
CPC分类号： H04B7/0667
摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval, and at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.
摘要翻译： 用于生成多输入多输出（MIMO）无线通信的帧的前同步码的方法由每个发射天线开始，生成载波检测场。 对于发射天线的第一组，产生第一保护间隔和至少一个信道探测场，继续该方法。 继续地，该方法在通过发射天线的第一组发射之前应用周期性移位。 当MIMO无线通信包括多于发射天线的第一组时，对于另一组发射天线。 对于发射天线的另一组，产生至少一个其它信道探测场。 该方法通过在至少一个其它信道探测场之前产生第一保护间隔，并且在经由另一组发射天线的传输之前应用另一个循环移位来进行。
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公开(公告)号：US08284651B2
公开(公告)日：2012-10-09
申请号：US13192964
申请日：2011-07-28
申请人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
发明人： Christopher J. Hansen , Jason A. Trachewsky , Rajendra Tushar Moorti , Matthew James Fischer , Christopher Young
CPC分类号： H04B7/0667
摘要： A method for generating a preamble of a frame for a multiple input multiple output (MIMO) wireless communication begins by, for each transmit antenna, generating a carrier detect field. The method continues by, for a first grouping of the transmit antennas, generating a first guard interval following the carrier detect field; and generating at least one channel sounding field. Continuing, the method applies cyclical shift prior to transmission via the first grouping of the transmit antennas. When the MIMO wireless communication includes more than the first grouping of the transmit antennas, for another grouping of the transmit antennas. For the another grouping of the transmit antennas, generating at least one other channel sounding field. The method proceeds by generating the first guard interval prior to the at least one other channel sounding field, and applying another cyclical shift prior to transmission via the another grouping of the transmit antennas.
摘要翻译： 用于生成多输入多输出（MIMO）无线通信的帧的前同步码的方法由每个发射天线开始，生成载波检测场。 对于发射天线的第一组，该方法继续生成载波检测场之后的第一保护间隔; 并产生至少一个声道探测场。 继续地，该方法在通过发射天线的第一组发射之前应用周期性移位。 当MIMO无线通信包括多于发射天线的第一组时，对于另一组发射天线。 对于发射天线的另一组，产生至少一个其它信道探测场。 该方法通过在至少一个其它信道探测场之前产生第一保护间隔，并且在经由另一组发射天线的传输之前应用另一个循环移位来进行。
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