Transmitter I/Q mismatch calibration for low IF design systems
    1.
    发明授权
    Transmitter I/Q mismatch calibration for low IF design systems 有权
    低IF设计系统的发射机I / Q不匹配校准

    公开(公告)号:US07382297B1

    公开(公告)日:2008-06-03

    申请号:US11503044

    申请日:2006-08-11

    CPC classification number: H04L27/3863 H03C5/00 H04L27/364

    Abstract: A calibration module includes a first input that receives a reference signal, a second input that receives a crosstalk signal, and first and second absolute value modules that generate first and second magnitude signals based on the reference signal and the crosstalk signal, respectively. A first module generates an amplitude correction signal for a quadrature-amplitude modulated (QAM) signal based on the first and second magnitude signals. A second module generates a phase correction signal for the QAM signal based on the reference signal and the crosstalk signal.

    Abstract translation: 校准模块包括接收参考信号的第一输入端,接收串扰信号的第二输入端以及分别基于参考信号和串扰信号产生第一和第二幅度信号的第一和第二绝对值模块。 第一模块基于第一和第二幅度信号产生用于正交幅度调制(QAM)信号的振幅校正信号。 第二模块基于参考信号和串扰信号产生用于QAM信号的相位校正信号。

    Power save mechanisms for dynamic ad-hoc networks
    2.
    发明授权
    Power save mechanisms for dynamic ad-hoc networks 有权
    动态自组织网络的节能机制

    公开(公告)号:US08891492B1

    公开(公告)日:2014-11-18

    申请号:US13561834

    申请日:2012-07-30

    Abstract: Techniques for establishing a dynamic ad-hoc wireless network are disclosed. A node transitions between wake and sleep modes during periods defined as beacon intervals. Before a network connection is established and while it is awake, the node transmits network connection request and also listens for network activity. If a beacon or response message is not detected while the node is listening, the node enters sleep mode and thereby conserves power. The node optionally changes the duration of its detection period and/or the time at which it listens for network activity relative to the start of each beacon interval. Information elements are optionally included with transmitted beacons or response messages.

    Abstract translation: 公开了用于建立动态自组织无线网络的技术。 在定义为信标间隔的周期期间,节点在唤醒和睡眠模式之间转换。 在建立网络连接并且清醒之前,节点发送网络连接请求,并监听网络活动。 如果在节点正在侦听时没有检测到信标或响应消息,则节点进入睡眠模式,从而节省电力。 节点可选地改变其检测周期的持续时间和/或其相对于每个信标间隔的开始监听网络活动的时间。 信息元素可选地包括在发送的信标或响应消息中。

    Power saving technique for a wireless device
    3.
    发明授权
    Power saving technique for a wireless device 有权
    无线设备省电技术

    公开(公告)号:US08462684B1

    公开(公告)日:2013-06-11

    申请号:US12357926

    申请日:2009-01-22

    Abstract: A system and method are disclosed for decreasing the amount of power consumed by a data transmitter in a wireless device when transmitting media (audio and/or visual) data or other data received from a media source or other source. A transmission circuit, such as an application specific integrated circuit (ASIC) or WLAN chip, is configured to deactivate the data transmitter for a deactivation interval and aggregate the media data (or other consistent-rate data) in a buffer while the data transmitter is deactivated. At the end of the deactivation interval, the data transmitter is activated and the aggregated data packets are transmitted. The data transmitter may be repetitively deactivated and activated for transmitting the data. The deactivation interval may be based on the data sampling rate, the transmission rate of the data transmitter, the capacity of the buffer, and/or other factors.

    Abstract translation: 公开了一种系统和方法,用于当传输从媒体源或其他源接收的媒体(音频和/或视频)数据或其他数据时,减少无线设备中的数据发射机消耗的功率量。 诸如专用集成电路(ASIC)或WLAN芯片之类的传输电路被配置为在数据发射机是数据发射机是缓冲器时将数据发射机停用于去激活间隔并且将缓冲器中的媒体数据(或其他一致速率数据)聚合在一起, 停用 在停用间隔结束时,数据发送器被激活,并且传送聚合的数据包。 数据发送器可以被重复地去激活并用于发送数据。 停用间隔可以基于数据采样率,数据发射机的传输速率,缓冲器的容量和/或其他因素。

    Pipelined packet encryption and decryption using counter mode with cipher-block chaining message authentication code protocol
    4.
    发明授权
    Pipelined packet encryption and decryption using counter mode with cipher-block chaining message authentication code protocol 有权
    使用带有密码锁链消息认证码协议的计数器模式进行流水线包加密和解密

    公开(公告)号:US08229110B1

    公开(公告)日:2012-07-24

    申请号:US12217928

    申请日:2008-07-10

    Abstract: An apparatus includes a key mixing circuit to generate N groups of decryption seeds, each generated based upon a predetermined key, a transmitter address, and a predetermined start value for a packet number. An input circuit receives N encrypted packets, each including the transmitter address and one of N values for the packet number. A decryption circuit decrypts each of the N encrypted packets using one of the N groups of decryption seeds that was generated based on the one of the N values in a respective one of the N encrypted packets. The key mixing circuit generates each of the N groups of decryption seeds before the input circuit receives the respective one of the N encrypted packets of the data. The predetermined start value is initialized when the apparatus is initialized and incremented when each of the N groups of decryption seeds is generated.

    Abstract translation: 一种装置包括密钥混合电路,用于产生N组解密种子,每组解密种子基于预定密钥生成,发送器地址和分组号的预定起始值。 输入电路接收N个加密分组,每个加密分组包括发送机地址和分组号的N个值中的一个。 解密电路使用N个加密分组中的相应一个中的N个值之一生成的N组解密种子中的N个解密N个加密分组中的每一个。 密钥混合电路在输入电路接收数据的N个加密分组中的相应一个之前,生成N组解密种子中的每一个。 当设备初始化时,预定的起始值被初始化,并且在生成了N组解密种子中的每一个时递增。

    Pipelined packet encapsulation and decapsulation for temporal key integrity protocol employing arcfour algorithm
    5.
    发明授权
    Pipelined packet encapsulation and decapsulation for temporal key integrity protocol employing arcfour algorithm 有权
    使用arcfour算法的时间密钥完整性协议的流水线封包和解封装

    公开(公告)号:US08208632B1

    公开(公告)日:2012-06-26

    申请号:US12758865

    申请日:2010-04-13

    Abstract: An apparatus including a key mixing circuit, an input circuit, and a decapsulation circuit. The key mixing circuit generates a plurality of seeds, each based on a predetermined temporal key, a transmitter MAC address, and a predetermined start value for a Temporal Key Integrity Protocol (TKIP) Sequence Count (TSC). The input circuit receives a message including the transmitter MAC address and the predetermined start value. The key mixing circuit generates the plurality of seeds based on the message. The input circuit receives a plurality of encapsulated MAC Payload Data Units (MPDUs). The input circuit receives the message before receiving the plurality of encapsulated MPDUs. The decapsulation circuit decapsulates each of the plurality of encapsulated MPDUs using one of the plurality of seeds that was generated based on the value for the TSC in the respective one of the N encapsulated MPDUs.

    Abstract translation: 一种包括密钥混合电路,输入电路和解封装电路的装置。 密钥混合电路基于预定的时间密钥,发送机MAC地址和用于时间密钥完整性协议(TKIP)序列计数(TSC)的预定起始值)生成多个种子。 输入电路接收包含发送器MAC地址和预定起始值的消息。 密钥混合电路基于该消息生成多个种子。 输入电路接收多个封装的MAC有效载荷数据单元(MPDU)。 输入电路在接收多个封装的MPDU之前接收该消息。 解封装电路使用基于N个封装的MPDU的相应一个中的TSC的值生成的多个种子之一来解封装多个封装的MPDU中的每一个。

    Pipelined packet encryption and decryption using counter mode with cipher-block chaining message authentication code protocol
    6.
    发明授权
    Pipelined packet encryption and decryption using counter mode with cipher-block chaining message authentication code protocol 有权
    使用带有密码锁链消息认证码协议的计数器模式进行流水线包加密和解密

    公开(公告)号:US07742594B1

    公开(公告)日:2010-06-22

    申请号:US10974458

    申请日:2004-10-27

    Abstract: An apparatus and corresponding method and computer program comprises a key mixing circuit to generate N groups of AES Blocks, each generated based upon a key, a transmitter MAC address, and a start value for a packet number. An input circuit receives N encrypted MPDUs, each comprising the transmitter address and one of N values for the packet number. Each of the N values for the packet number is greater than, or equal to, the start value for the packet number. A decryption circuit decrypts each of the N encrypted MPDUs using the respective one of the N groups of AES Output Blocks. The key mixing circuit generates each of the N groups of AES Output Blocks before the input circuit receives the respective one of the N encrypted MPDUs. The predetermined start value is initialized when the apparatus is initialized and incremented when each of the N groups of AES Output Blocks is generated.

    Abstract translation: 装置和相应的方法和计算机程序包括密钥混合电路,用于产生N组AES块,每组基于密钥产生,发送器MAC地址和分组号的起始值。 输入电路接收N个加密的MPDU,每个加密的MPDU包括发送器地址和分组号的N个值之一。 分组号的N个值中的每一个大于或等于分组号的起始值。 解密电路使用N组AES输出块中的相应一个解密N个加密MPDU中的每一个。 密钥混合电路在输入电路接收到N个加密的MPDU中的相应一个之前,生成N组AES输出块中的每一个。 当生成每个N个AES输出块组时,初始化预定的初始值并递增。

    Diffusion bucket scheduler for wireless network devices
    7.
    发明授权
    Diffusion bucket scheduler for wireless network devices 有权
    用于无线网络设备的扩散桶调度器

    公开(公告)号:US07502358B1

    公开(公告)日:2009-03-10

    申请号:US11101047

    申请日:2005-04-06

    CPC classification number: H04W74/06 H04L12/4035 H04W72/1236

    Abstract: A scheduler for a wireless network including N wireless stations having N bandwidth parameters, respectively, comprises a framing module that generates a schedule frame including schedule slots. An assigning module assigns N sets of TxOps to the N wireless stations based on the N bandwidth parameters, respectively. Each of the schedule slots includes zero or one transmission opportunity (TxOp) for each of the N wireless stations. A polling module polls the N wireless stations based on the TxOps defined in respective ones of the N sets of TxOps.

    Abstract translation: 包括分别具有N个带宽参数的N个无线站的无线网络的调度器分别包括生成包括调度时隙的调度帧的成帧模块。 分配模块分别基于N个带宽参数向N个无线站分配N组TxOps。 每个调度时隙包括N个无线站中的每一个的零个或一个发送机会(TxOp)。 轮询模块基于在N组TxOps中的相应的一组中定义的TxOps轮询N个无线站。

    Wi-Fi BASED GEO-LOCATION CONNECTIVITY
    8.
    发明申请
    Wi-Fi BASED GEO-LOCATION CONNECTIVITY 审中-公开
    基于Wi-Fi的地理位置连接

    公开(公告)号:US20130005386A1

    公开(公告)日:2013-01-03

    申请号:US13608638

    申请日:2012-09-10

    CPC classification number: G06Q30/0633 H04L67/16 H04L67/303 H04W8/005 H04W8/18

    Abstract: A wireless device capable of matching a user with content based on the user's proximity to other users, by searching for a match between profiles of wireless devices within a wireless coverage area. Wireless devices broadcast profiles within a wireless coverage area. Other wireless devices within the wireless coverage area receive the broadcasted profiles, determine a match between the received profile and a profile stored on the wireless device, and display a match indicator if a match is determined. In this manner, a user having a wireless device may be matched with content based on the user's proximity to other users.

    Abstract translation: 一种无线设备,其能够通过搜索无线覆盖区域内的无线设备的配置文件之间的匹配,基于用户与其他用户的接近度来匹配用户与内容。 无线设备在无线覆盖区域内广播配置文件。 无线覆盖区域内的其他无线设备接收广播的简档,确定所接收的简档和存储在无线设备上的简档之间的匹配,并且如果确定匹配,则显示匹配指示符。 以这种方式,具有无线设备的用户可以基于用户与其他用户的接近度与内容匹配。

    Wi-Fi based geo-location connectivity
    9.
    发明授权
    Wi-Fi based geo-location connectivity 有权
    基于Wi-Fi的地理位置连接

    公开(公告)号:US08265621B2

    公开(公告)日:2012-09-11

    申请号:US11840557

    申请日:2007-08-17

    CPC classification number: G06Q30/0633 H04L67/16 H04L67/303 H04W8/005 H04W8/18

    Abstract: A wireless device capable of matching a user with content based on the user's proximity to other users, by searching for a match between profiles of wireless devices within a wireless coverage area. Wireless devices broadcast profiles within a wireless coverage area. Other wireless devices within the wireless coverage area receive the broadcasted profiles, determine a match between the received profile and a profile stored on the wireless device, and display a match indicator if a match is determined. In this manner, a user having a wireless device may be matched with content based on the user's proximity to other users.

    Abstract translation: 一种无线设备,其能够通过搜索无线覆盖区域内的无线设备的配置文件之间的匹配,基于用户与其他用户的接近度来匹配用户与内容。 无线设备在无线覆盖区域内广播配置文件。 无线覆盖区域内的其他无线设备接收广播的简档,确定所接收的简档和存储在无线设备上的简档之间的匹配,并且如果确定匹配,则显示匹配指示符。 以这种方式,具有无线设备的用户可以基于用户与其他用户的接近度与内容匹配。

    Power save mechanisms for dynamic ad-hoc networks
    10.
    发明授权
    Power save mechanisms for dynamic ad-hoc networks 有权
    动态自组织网络的节能机制

    公开(公告)号:US08233456B1

    公开(公告)日:2012-07-31

    申请号:US11867665

    申请日:2007-10-04

    Abstract: Techniques for establishing a dynamic ad-hoc wireless network are disclosed. A node transitions between wake and sleep modes during periods defined as beacon intervals. Before a network connection is established and while it is awake, the node transmits network connection request and also listens for network activity. If a beacon or response message is not detected while the node is listening, the node enters sleep mode and thereby conserves power. The node optionally changes the duration of its detection period and/or the time at which it listens for network activity relative to the start of each beacon interval. Information elements are optionally included with transmitted beacons or response messages.

    Abstract translation: 公开了用于建立动态自组织无线网络的技术。 在定义为信标间隔的周期期间,节点在唤醒和睡眠模式之间转换。 在建立网络连接并且清醒之前,节点发送网络连接请求,并监听网络活动。 如果在节点正在侦听时没有检测到信标或响应消息,则节点进入睡眠模式,从而节省电力。 节点可选地改变其检测周期的持续时间和/或其相对于每个信标间隔的开始监听网络活动的时间。 信息元素可选地包括在发送的信标或响应消息中。

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