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1.发明授权Hardware synchronizer for 802.15.4 radio to minimize processing power consumption 有权用于802.15.4无线电的硬件同步器，以最大限度地减少处理能耗公开(公告)号：US08023557B2
公开(公告)日：2011-09-20
申请号：US11968105
申请日：2007-12-31
申请人： Nicolas Constantinidis , Guillaume Crinon , Alexandre Rouxel , Alan Westwick , Gary Franzosa , Didier Gallais , Marty Lynn Pflum
发明人： Nicolas Constantinidis , Guillaume Crinon , Alexandre Rouxel , Alan Westwick , Gary Franzosa , Didier Gallais , Marty Lynn Pflum
CPC分类号： H04W52/028 , Y02D70/142 , Y02D70/144 , Y02D70/162 , Y02D70/22
摘要： A method is disclosed for controlling the operation of a low power radio platform that realizes the physical layer (PHY) with a software portion and an analog front end, the analog front end disposed between the DSP and an antenna, and realizes the MAC layer with a microcontroller unit (MCU). The DSP, analog front end and MCU are maintained in a low power mode of operation when not in data communication. When data communication is initiated, a hardware controller controls at least one hardware interface disposed between the DSP and the analog front end to initiate multiple time based tasks to transfer data to and from a buffer. During the execution of these tasks, the controller causes a task in the DSP to be initiated for processing of data in the buffers and, upon completion of at least one of the tasks, notifying the MCU of such. The controller controls the hardware interface to terminate operation when predetermined time based events have occurred. The MCU in at least one mode of operation thereof is operable to initiate the operation of the hardware controller and then convert to a low power mode of operation to await notification.
摘要翻译： 公开了一种用于控制利用软件部分和模拟前端实现物理层（PHY）的低功率无线电平台的操作的方法，模拟前端设置在DSP和天线之间，并且实现MAC层与 微控制器单元（MCU）。 DSP，模拟前端和MCU在不进行数据通信时，都处于低功耗操作模式。 当数据通信发起时，硬件控制器控制至少一个配置在DSP和模拟前端之间的硬件接口，以启动多个基于时间的任务，以将数据传送到缓冲器和从缓冲器传输数据。 在执行这些任务期间，控制器使得DSP中的任务被启动以处理缓冲器中的数据，并且在完成至少一个任务时通知MCU。 当发生预定的基于时间的事件时，控制器控制硬件接口终止操作。 MCU中的至少一种操作模式可操作以启动硬件控制器的操作，然后转换为低功率操作模式以等待通知。
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公开(公告)号：US08050313B2
公开(公告)日：2011-11-01
申请号：US11968113
申请日：2007-12-31
CPC分类号： H04B1/707 , H04B1/69 , H04B2201/70709
摘要： A single chip radio platform is disclosed for communicating with an RF channel. An RF front end is provided having a receive/transmit capability to receive an RF carrier modulated with digital data and convert the data to analog baseband data, and modulate an RF carrier with baseband data. A digital signal processor (DSP) engine is provided for interfacing with the RF front end to form in conjunction therewith the PHY layer, and interfacing with the MAC layer to demodulate the baseband data and in the transmit mode to generate the baseband data for modulation and transmission by the RF front end. A microcontroller unit (MCU) is provided for performing the functionality of the MAC, network and application layers and interfacing with the DSP. Clock circuitry is provided including a stable reference clock for generating a first fixed clock for providing MCU clocks for the operation of the MCU, and for providing a reference for a local oscillator at substantially the channel frequency for use by the RF front end and a DSP clock for use by the DSP, both the MCU clocks, the local oscillator and the DSP clock having the stability of the first fixed clock. Periodic power management circuitry is provided for controlling the operation of the radio platform to operate in a sleep.
摘要翻译： 公开了用于与RF信道通信的单芯片无线电平台。 提供RF前端，其具有接收/发射能力，以接收利用数字数据调制的RF载波，并将数据转换为模拟基带数据，并用基带数据调制RF载波。 提供数字信号处理器（DSP）引擎，用于与RF前端接口以与其结合形成PHY层，并与MAC层接口以解调基带数据，并在发送模式下生成用于调制的基带数据， 由射频前端传输。 提供了一个微控制器单元（MCU），用于执行MAC，网络和应用层的功能，并与DSP接口。 提供时钟电路，包括用于产生用于为MCU的操作提供MCU时钟的第一固定时钟的稳定参考时钟，以及为基本上由RF前端和DSP使用的信道频率的本地振荡器提供参考 时钟由DSP使用，MCU时钟，本地振荡器和DSP时钟均具有第一个固定时钟的稳定性。 提供了周期性电源管理电路，用于控制无线电平台在睡眠中操作的操作。
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公开(公告)号：US20120196646A1
公开(公告)日：2012-08-02
申请号：US13502040
申请日：2010-10-20
CPC分类号： H04W16/24 , G06Q30/02 , H04L12/18 , H04L51/20 , H04L67/1095 , H04W4/021 , H04W4/06 , H04W4/20 , H04W40/22
摘要： A mobile network comprising a central unit (102) for communicating with a first network (104); at least one intermediate base station (106) for communication with the central unit (102) over the first network (104) and for transmitting data to a second network; at least one mobile unit (112) for receiving data from the base station over the second network, a memory for storing the data, a display and a processor running an application to display at least a portion of the stored data; and at least one geolocation marker (116) external to the mobile unit for generating a signal including position information indication a relative position, wherein the signal is received by the mobile unit when it is proximate to the base station wherein the central unit broadcasts at least one portion of the data to the mobile unit through the intermediate base station; and wherein the application running on the processor displays a portion of the stored data associated with the relative position.
摘要翻译： 一种移动网络，包括用于与第一网络（104）进行通信的中央单元（102）。 至少一个中间基站（106），用于通过所述第一网络（104）与所述中央单元（102）通信，并用于将数据发送到第二网络; 用于通过所述第二网络从所述基站接收数据的至少一个移动单元（112），用于存储所述数据的存储器，显示器和运行应用以显示所存储的数据的至少一部分的处理器; 以及移动单元外部的至少一个地理位置标记（116），用于产生包括指示相对位置的位置信息的信号，其中当所述信号靠近所述基站时，所述信号被所述移动单元接收，其中所述中心单元至少广播 数据的一部分通过中间基站传送到移动单元; 并且其中在所述处理器上运行的所述应用显示与所述相对位置相关联的所存储的数据的一部分。
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公开(公告)号：US09054899B2
公开(公告)日：2015-06-09
申请号：US13502040
申请日：2010-10-20
CPC分类号： H04W16/24 , G06Q30/02 , H04L12/18 , H04L51/20 , H04L67/1095 , H04W4/021 , H04W4/06 , H04W4/20 , H04W40/22
摘要： A mobile network comprising a central unit (102) for communicating with a first network (104); at least one intermediate base station (106) for communication with the central unit (102) over the first network (104) and for transmitting data to a second network; at least one mobile unit (112) for receiving data from the base station over the second network, a memory for storing the data, a display and a processor running an application to display at least a portion of the stored data; and at least one geolocation marker (116) external to the mobile unit for generating a signal including position information indication a relative position, wherein the signal is received by the mobile unit when it is proximate to the base station wherein the central unit broadcasts at least one portion of the data to the mobile unit through the intermediate base station; and wherein the application running on the processor displays a portion of the stored data associated with the relative position.
摘要翻译： 一种移动网络，包括用于与第一网络（104）进行通信的中央单元（102）。 至少一个中间基站（106），用于通过所述第一网络（104）与所述中央单元（102）通信，并用于将数据发送到第二网络; 用于通过所述第二网络从所述基站接收数据的至少一个移动单元（112），用于存储所述数据的存储器，显示器和运行应用以显示所存储的数据的至少一部分的处理器; 以及移动单元外部的至少一个地理位置标记（116），用于产生包括指示相对位置的位置信息的信号，其中当所述信号靠近所述基站时，所述信号被所述移动单元接收，其中所述中心单元至少广播 数据的一部分通过中间基站传送到移动单元; 并且其中在所述处理器上运行的所述应用显示与所述相对位置相关联的所存储的数据的一部分。
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公开(公告)号：US20060126768A1
公开(公告)日：2006-06-15
申请号：US11011660
申请日：2004-12-14
IPC分类号： H04B1/10
CPC分类号： H04B1/71
摘要： A method is disclosed for filtering a received RF signal modulated with a time series sampled data signal, each data sample occurring within a bit time. At least a portion of the signal is filtered such that in the frequency domain a portion of the high frequency energy therein is rejected to provide a filtered signal. In the time domain, substantial attenuation regions are disposed forward in time with the step of filtering such that the attenuation regions are disposed within the bit time of subsequent data samples of the time series sampled data signal in the time domain. Sampling of a given filtered received time series sampled data signal occurs substantially proximate in time to the substantial attenuation contributed by prior received data samples.
摘要翻译： 公开了一种用于对用时间序列采样数据信号调制的接收RF信号进行滤波的方法，每个数据样本在一个位时间内发生。 信号的至少一部分被滤波，使得在频域中，其中的高频能量的一部分被拒绝以提供滤波信号。 在时域中，实质衰减区域以滤波步骤在时间上向前布置，使得衰减区域设置在时域中的时间序列采样数据信号的后续数据样本的位时间内。 给定的滤波的接收时间序列采样数据信号的采样在时间上基本上接近于先前接收的数据样本所贡献的实质衰减。
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公开(公告)号：US06792254B1
公开(公告)日：2004-09-14
申请号：US09671128
申请日：2000-09-27
IPC分类号： H04B106
CPC分类号： H03D3/009
摘要： An apparatus and method for comparing the amplitudes of two electric signals Iout and Qout are disclosed. The method includes a step wherein powers conveyed by the signals Iout and Qout are compared. One feature of the method and apparatus is that it is not necessary to storing the maxima of the signals to be compared when these signals are out of phase with respect to each other. One application of the method or apparatus is for the correction of differences in amplitude between I, Q signals that are separated in phase by 90° inside QAM, QPSK or QBSK demodulators.
摘要翻译： 公开了用于比较两个电信号Iout和Qout的振幅的装置和方法。 该方法包括比较由信号Iout和Qout传送的功率的步骤。 该方法和装置的一个特征是当这些信号彼此相位异相时，不需要存储要比较的信号的最大值。 该方法或装置的一个应用是用于校正在QAM，QPSK或QBSK解调器内相位分离90°的I，Q信号之间的幅度差异。
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公开(公告)号：US06642783B2
公开(公告)日：2003-11-04
申请号：US09950851
申请日：2001-09-12
IPC分类号： H03F124
CPC分类号： H03F1/3211 , H03F3/602 , H03F3/68
摘要： The invention relates to an amplification device AD, comprising a first and a second amplifier AMP1 and AMP2, arranged in cascade, each amplifier being provided with a feedback loop Zi (where i=1 or 2) and having a gain proper Gi equal to Ai/(1+Ai.Zi). In accordance with the invention, the value of the inverse of the gain proper Gi of the first amplifier AMP1 is substantially equal to three times the value of the inverse of the gain proper G2 of the second amplifier AMP2 raised to the power of three: (1/G1)=3/(G2)3. Such a choice provides the amplification device AD with an optimum linearity.
摘要翻译： 本发明涉及放大装置AD，其包括级联布置的第一和第二放大器AMP1和AMP2，每个放大器设置有反馈环Zi（其中i = 1或2）并且具有等于Ai的增益正确Gi /(1+Ai.Zi）。 根据本发明，第一放大器AMP1的增益适当Gi的倒数的值基本上等于第三放大器AMP2的增益适当G2的反向增加到三的幂的三倍： 1 / G1）= 3 /（G2）<3>。 这种选择为放大装置AD提供了最佳线性。
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公开(公告)号：US20080160945A1
公开(公告)日：2008-07-03
申请号：US11618425
申请日：2006-12-29
申请人： Guillaume Crinon , Rouxel Alexandre
发明人： Guillaume Crinon , Rouxel Alexandre
IPC分类号： H04B1/06
CPC分类号： H03G3/3052 , H01Q1/241
摘要： The present invention comprises an automatic gain controller for an RF transceiver that comprises a digital engine that selects a gain level responsive to a signal power level of a signal of interest received by the RF transceiver. The digital engine is configured to select the gain level from a plurality of possible gain levels to maximize the signal power of the signal of interest while providing at least a selected signal of interest to noise ratio. The digital engine provides a control signal enabling amplification of a received signal according to the selected gain level.
摘要翻译： 本发明包括用于RF收发器的自动增益控制器，其包括响应于由RF收发器接收的感兴趣的信号的信号功率电平来选择增益电平的数字引擎。 数字引擎被配置为从多个可能的增益电平中选择增益电平，以使感兴趣的信号的信号功率最大化，同时至少提供所选择的感兴趣的噪声信噪比。 数字引擎提供控制信号，使得能够根据所选择的增益级别对接收到的信号进行放大。
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