Multi-chain signal detection and gain control for automatic gain control systems
    31.
    发明授权
    Multi-chain signal detection and gain control for automatic gain control systems 有权
    用于自动增益控制系统的多链信号检测和增益控制

    公开(公告)号:US07463704B1

    公开(公告)日:2008-12-09

    申请号:US10884787

    申请日:2004-07-01

    IPC分类号: H04L27/08

    CPC分类号: H03G3/3068 H03G3/3078

    摘要: A wireless local area network (WLAN) system can have multiple antennas to improve signal detection and decoding. A WLAN receiver in such a system includes multiple amplifiers that can appropriately size an incoming signal and an automatic gain control unit to process the received incoming signals. The amplifiers of a chain of the WLAN receiver, i.e. an antenna and associated receiver components, can be adjusted with computed gains. To optimize the wireless system detection and decoding, the automatic gain control unit can advantageously compute these gains for each amplifier in the WLAN receiver.

    摘要翻译: 无线局域网(WLAN)系统可以具有多个天线来改善信号检测和解码。 这种系统中的WLAN接收机包括可以适当地调整输入信号的大小的放大器和自动增益控制单元来处理接收到的输入信号。 可以利用计算的增益来调整WLAN接收器链的放大器,即天线和相关联的接收器组件。 为了优化无线系统检测和解码,自动增益控制单元可以有利地计算WLAN接收机中每个放大器的这些增益。

    Wireless HD AV packet format
    32.
    发明申请
    Wireless HD AV packet format 有权
    无线高清AV数据包格式

    公开(公告)号:US20080130741A1

    公开(公告)日:2008-06-05

    申请号:US11982209

    申请日:2007-10-31

    IPC分类号: H04N11/04

    摘要: An audio/video (AV) processor is coupled to a media access controller (MAC) to generate a composite packet having an optimized format for carrying audio, video, and data traffic with fields in a header of the composite packet specifying video-specific information. A physical device interface (PHY) is coupled to the MAC. The PHY encodes and decodes between a digital signal and a modulated analog signal. The PHY comprises a high rate physical layer circuit (HRP) and a low rate physical layer circuit (LRP). A radio frequency (RF) transmitter is coupled to the PHY to transmit data.

    摘要翻译: 音频/视频(AV)处理器被耦合到媒体接入控制器(MAC)以产生具有优化格式的复合分组,所述优化格式用于承载音频,视频和数据业务,其中所述组合分组的报头中的字段指定视频专用信息 。 物理设备接口(PHY)耦合到MAC。 PHY在数字信号和调制的模拟信号之间进行编码和解码。 PHY包括高速物理层电路(HRP)和低速物理层电路(LRP)。 射频(RF)发射机耦合到PHY以传输数据。

    Multi-channel binding in data transmission
    34.
    再颁专利
    Multi-channel binding in data transmission 有权
    数据传输中的多通道绑定

    公开(公告)号:USRE45236E1

    公开(公告)日:2014-11-11

    申请号:US13231733

    申请日:2011-09-13

    IPC分类号: H04J1/00

    摘要: A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the channels to be bound is compatible with existing standards-based wireless data communications equipment. The master channel serves to perform MAC association and flow control. Aggregate throughput is improved by sending and receiving either multiple sets of separately encoded packets, commonly encoded packets or redundantly encoded packets.

    摘要翻译: 描述了用于将多个无线数据通信信道绑定在一起的系统和方法,从而实现了聚合吞吐量的提高。 要绑定的频道中的主频道与现有的基于标准的无线数据通信设备兼容。 主信道用于执行MAC关联和流控制。 通过发送和接收多组单独编码的数据包(通常是编码数据包或冗余编码数据包)来提高总体吞吐量。

    Wireless LAN using transmission monitoring
    35.
    发明授权
    Wireless LAN using transmission monitoring 有权
    无线局域网使用传输监控

    公开(公告)号:US08699367B1

    公开(公告)日:2014-04-15

    申请号:US13107850

    申请日:2011-05-13

    IPC分类号: H04L12/26

    CPC分类号: H04W36/0083 Y02D70/142

    摘要: Transmission monitoring can be used to determine the optimum data rate for a channel. The transmission monitoring can include sending data packets in the channel using various data rates. At least some data packets are sent using the current optimum data rate, a rate lower than the current optimum data rate, and a rate higher than the current optimum data rate. One of these data rates can be selected as the new optimum data rate. In one embodiment, if the current optimum data rate is less than a predetermined data rate, then the client is triggered to begin scanning for other available access points.

    摘要翻译: 传输监控可用于确定通道的最佳数据速率。 传输监视可以包括使用各种数据速率在信道中发送数据分组。 使用当前最佳数据速率,比当前最佳数据速率低的速率以及高于当前最佳数据速率的速率来发送至少一些数据分组。 可以选择这些数据速率之一作为新的最佳数据速率。 在一个实施例中,如果当前最佳数据速率小于预定数据速率,则触发客户端开始扫描其他可用接入点。

    Spur mitigation techniques
    37.
    发明授权
    Spur mitigation techniques 有权
    刺激减轻技术

    公开(公告)号:US08184754B1

    公开(公告)日:2012-05-22

    申请号:US13081452

    申请日:2011-04-06

    IPC分类号: H04B1/00

    摘要: Spurs cause significant problems with signal detecting, amplifier gain adjustment, and signal decoding. Various techniques can be used to mitigate the effects of spurs on a received signal. Generally, these techniques work by either canceling or ignoring the spurs. For example, a pilot mask can be used to ignore pilot information in one or more sub-channels. A Viterbi mask can determine the weighting given to bits in a sub-channel based on spur and data rate information. Channel interpolation can compute a pseudo channel estimate for a sub-channel known to have a spur location can be computed by interpolating the channel estimates of adjacent good sub-channels. Filtering of the received signal using a low-pass filter, a growing box filter, or a low-pass filter with self-correlation can be used to cancel a spur.

    摘要翻译: 马刺在信号检测,放大器增益调整和信号解码方面造成重大问题。 可以使用各种技术来减轻杂散对接收信号的影响。 一般来说,这些技术通过取消或忽略杂散来工作。 例如,可以使用导频掩码来忽略一个或多个子信道中的导频信息。 维特比掩码可以基于支线和数据速率信息来确定子信道中的比特的加权。 信道内插可以计算已知具有支路位置的子信道的伪信道估计,可以通过内插相邻的良好子信道的信道估计来计算。 使用低通滤波器,增长盒滤波器或具有自相关的低通滤波器对接收信号进行滤波可以用于取消杂散。

    Wireless LAN using transmission monitoring
    38.
    发明授权
    Wireless LAN using transmission monitoring 有权
    无线局域网使用传输监控

    公开(公告)号:US08014305B1

    公开(公告)日:2011-09-06

    申请号:US10139935

    申请日:2002-05-06

    IPC分类号: H04L12/26

    CPC分类号: H04W36/0083 Y02D70/142

    摘要: Transmission monitoring can be used to determine the optimum data rate for a channel. The transmission monitoring can include sending data packets in the channel using various data rates. At least some data packets are sent using the current optimum data rate, a rate lower than the current optimum data rate, and a rate higher than the current optimum data rate. One of these data rates can be selected as the new optimum data rate. In one embodiment, if the current optimum data rate is less than a predetermined data rate, then the client is triggered to begin scanning for other available access points.

    摘要翻译: 传输监控可用于确定通道的最佳数据速率。 传输监视可以包括使用各种数据速率在信道中发送数据分组。 使用当前最佳数据速率,比当前最佳数据速率低的速率以及高于当前最佳数据速率的速率来发送至少一些数据分组。 可以选择这些数据速率之一作为新的最佳数据速率。 在一个实施例中,如果当前最佳数据速率小于预定数据速率,则触发客户端开始扫描其他可用接入点。

    RF integrated circuit test methodology and system
    39.
    发明授权
    RF integrated circuit test methodology and system 有权
    射频集成电路测试方法和系统

    公开(公告)号:US07915909B2

    公开(公告)日:2011-03-29

    申请号:US12059757

    申请日:2008-03-31

    IPC分类号: G01R31/00

    CPC分类号: G01R31/2822

    摘要: Over the air or radiated testing of an RF microelectronic or integrated circuit device under test (DUT) that has an integrated millimeter wave (mmw) antenna structure, is described. The antenna structure may have multiple elements in an array design that may be driven and/or sensed by integrated RF transmitter and/or receiver circuitry. An interface printed wiring board (e.g., a tester load board or a wafer probe card assembly) has formed in it a mmw radiation passage that is positioned to pass mmw radiation to and/or from the integrated antenna of the DUT. Test equipment may be conductively coupled to contact points of the interface board, to transmit and/or receive signals for testing of the DUT and/or provide dc power to the DUT. A test antenna is designed and positioned to receive and/or transmit mmw radiation through the passage, from and/or to the integrated DUT antenna. Other embodiments are also described and claimed.

    摘要翻译: 描述了具有集成毫米波(mmw)天线结构的RF微电子或被测试的集成电路器件(DUT)的空中或辐射测试(DUT)。 天线结构可以具有可由集成RF发射器和/或接收器电路驱动和/或感测的阵列设计中的多个元件。 接口印刷电路板(例如,测试仪负载板或晶片探针卡组件)中形成有一个mmw辐射通道,该辐射通道定位成通过与DUT的集成天线之间的辐射。 测试设备可以导电耦合到接口板的接触点,以发射和/或接收用于测试DUT的信号和/或向DUT提供直流电力。 测试天线被设计和定位成接收和/或传输穿过通道,从和/或到集成的DUT天线的mmw辐射。 还描述和要求保护其他实施例。

    Spur mitigation techniques
    40.
    发明授权
    Spur mitigation techniques 有权
    刺激减轻技术

    公开(公告)号:US07835456B2

    公开(公告)日:2010-11-16

    申请号:US11952040

    申请日:2007-12-06

    IPC分类号: H04L27/28

    摘要: Spurs cause significant problems with signal detecting, amplifier gain adjustment, and signal decoding. Various techniques can be used to mitigate the effects of spurs on a received signal. Generally, these techniques work by either canceling or ignoring the spurs. For example, a pilot mask can be used to ignore pilot information in one or more sub-channels. A Viterbi mask can determine the weighting given to bits in a sub-channel based on spur and data rate information. Channel interpolation can compute a pseudo channel estimate for a sub-channel known to have a spur location can be computed by interpolating the channel estimates of adjacent good sub-channels. Filtering of the received signal using a low-pass filter, a growing box filter, or a low-pass filter with self-correlation can be used to cancel a spur.

    摘要翻译: 马刺在信号检测,放大器增益调整和信号解码方面造成重大问题。 可以使用各种技术来减轻杂散对接收信号的影响。 一般来说,这些技术通过取消或忽略杂散来工作。 例如,可以使用导频掩码来忽略一个或多个子信道中的导频信息。 维特比掩码可以基于支线和数据速率信息来确定子信道中的比特的加权。 信道内插可以计算已知具有支路位置的子信道的伪信道估计,可以通过内插相邻的良好子信道的信道估计来计算。 使用低通滤波器,增长盒滤波器或具有自相关的低通滤波器对接收信号进行滤波可以用于取消杂散。