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    • 1. 发明授权
    • Early-late correlation for timing error correction in data communication receivers
    • 数据通信接收机定时纠错的早期相关性
    • US07190709B2
    • 2007-03-13
    • US10464960
    • 2003-06-19
    • Uwe EckhardtJörg BorowskiTilo Ferchland
    • Uwe EckhardtJörg BorowskiTilo Ferchland
    • H04L27/00
    • H04L7/007H04B1/7085H04L7/0029
    • A timing error correction technique for use in data communications receivers such as WLAN (Wireless Local Area Network) receivers is provided where an input signal is received that has a timing error, the timing error is corrected, and a signal having a corrected timing error is output. The timing error correction comprises performing an early-late correlation on the signal that has the corrected timing error. The early-late correlation comprises the generation of at least one early and late sample pair, the generation of an error signal that is indicative of the difference between the early and late samples, and the generation of at least one control signal based on the error signal. A time offset correction algorithm is performed dependent on the control signal.
    • 提供了一种在诸如WLAN(无线局域网)接收机的数据通信接收机中使用的定时误差校正技术,其中接收到具有定时误差的输入信号,定时误差被校正,并且具有校正的定时误差的信号是 输出。 定时误差校正包括对具有校正的定时误差的信号执行早期相关。 早期相关性包括产生至少一个早期和晚期样本对,产生指示早期和晚期样本之间的差异的误差信号,以及基于误差产生至少一个控制信号 信号。 根据控制信号执行时间偏移校正算法。
    • 2. 发明申请
    • Receiver and Method for the Reception of a Node by a Receiver in a Wireless Network
    • 用于在无线网络中由接收机接收节点的接收机和方法
    • US20140315508A1
    • 2014-10-23
    • US14257473
    • 2014-04-21
    • Tilo FerchlandRolf JaehneFrank PoegelEric Sachse
    • Tilo FerchlandRolf JaehneFrank PoegelEric Sachse
    • H04B17/00H04W4/00H04W24/00
    • H04B17/318H04B1/7073H04L7/042H04W4/80H04W24/00
    • In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base.
    • 在一个实施例中,一种方法包括接收射频(RF)信号; 将接收到的RF信号与前导码同步以确定时基; 通过在第一时间段内平均所接收的RF信号的接收信号强度指示(RSSI)值来确定所接收的RF信号的第一能量值; 在第二时间段内确定所接收的RF信号的第二能量值; 确定所述第一能量值和所述第二能量值之间的差值; 将所述差值与预定能量阈值进行比较; 确定所接收的RF信号的质量值; 将所接收的RF信号的质量值与预定质量阈值进行比较; 并且如果差值超过预定能量阈值或质量值低于预定质量阈值,则擦除时基。
    • 3. 发明授权
    • Receiver and method for operating a receiver
    • 用于操作接收机的接收器和方法
    • US08831553B2
    • 2014-09-09
    • US12648987
    • 2009-12-29
    • Tilo FerchlandEric SachseRolf Jaehne
    • Tilo FerchlandEric SachseRolf Jaehne
    • H04B1/16H04W52/02
    • H04W52/0229Y02D70/144
    • A receiver and method for operating a receiver, in particular of a radio network, is provided, whereby the receiver includes circuit blocks in a receive path for detecting a preamble of a received signal, and a controller for controlling a receive mode. Whereby at least some of the circuit blocks are designed to be capable of being turned on for a turn-on duration and turned off for a turn-off duration. Whereby, the controller is configured to alternately turn on at least some of the circuit blocks for the turn-on duration and off for the turn-off duration during the receive mode, wherein the turn-off duration is shorter than the preamble. Whereby, the controller is configured to compare a first measured value measured in the receive path to a first threshold, and the controller is configured to change the turn-on duration and/or the turn-off duration on the basis of a result of the comparison with the first threshold, and whereby the controller is configured to compare a second measured value to a second threshold in order to detect a valid signal of the preamble and, on the basis of a result of the comparison with the second threshold, to terminate the turn-off and to drive the portion of the circuit blocks into a turned-on state for a synchronization by means of the preamble.
    • 提供了用于操作特别是无线电网络的接收机的接收机和方法,由此接收机包括用于检测接收到的信号的前同步码的接收路径中的电路块和用于控制接收模式的控制器。 由此至少一些电路块被设计成能够被接通以接通持续时间,并且关断持续时间。 由此,控制器被配置为在接收模式期间交替地接通导通持续时间中的至少一些电路块并且关闭关断持续时间,其中关断持续时间短于前导码。 由此,控制器被配置为将在接收路径中测量的第一测量值与第一阈值进行比较,并且所述控制器被配置为基于所述接收路径的结果来改变所述接通持续时间和/或所述关断持续时间 与第一阈值进行比较,由此控制器被配置为将第二测量值与第二阈值进行比较,以便检测前导码的有效信号,并且基于与第二阈值的比较结果,终止 关断并且通过前置码将电路块的一部分驱动成用于同步的导通状态。
    • 4. 发明授权
    • Receiver and method for the reception of a node by a receiver in a wireless network
    • 用于由无线网络中的接收机接收节点的接收机和方法
    • US08705670B2
    • 2014-04-22
    • US13182286
    • 2011-07-13
    • Tilo FerchlandRolf JaehneFrank PoegelEric Sachse
    • Tilo FerchlandRolf JaehneFrank PoegelEric Sachse
    • H04L27/06
    • H04B17/318H04B1/7073H04L7/042H04W4/80H04W24/00
    • In one embodiment, a method includes receiving a radio frequency (RF) signal; synchronizing the received RF signal with a preamble to determine a time base; determining a first energy value of the received RF signal by averaging received signal strength indication (RSSI) values of the received RF signal over a first period of time; determining a second energy value of the received RF signal over a second period of time; determining a difference value between the first energy value and the second energy value; comparing the difference value with a predetermined energy threshold value; determining a quality value of the received RF signal; comparing the quality value of the received RF signal with a predetermined quality threshold value; and, if the difference value exceeds the predetermined energy threshold value or the quality value is below the predetermined quality threshold value, then erasing the time base.
    • 在一个实施例中,一种方法包括接收射频(RF)信号; 将接收到的RF信号与前导码同步以确定时基; 通过在第一时间段内平均所接收的RF信号的接收信号强度指示(RSSI)值来确定所接收的RF信号的第一能量值; 在第二时间段内确定所接收的RF信号的第二能量值; 确定所述第一能量值和所述第二能量值之间的差值; 将所述差值与预定能量阈值进行比较; 确定所接收的RF信号的质量值; 将所接收的RF信号的质量值与预定质量阈值进行比较; 并且如果差值超过预定能量阈值或质量值低于预定质量阈值,则擦除时基。
    • 8. 发明授权
    • Circuit and method for operating a circuit
    • 用于操作电路的电路和方法
    • US08193792B2
    • 2012-06-05
    • US12481330
    • 2009-06-09
    • Wolfram KlugeJeannette ZarbockTilo Ferchland
    • Wolfram KlugeJeannette ZarbockTilo Ferchland
    • G05F1/44
    • G11C5/14G11C5/143G11C5/147
    • A circuit and method for operating a circuit is provided that includes a circuit section that has a number of memory elements, a first voltage regulator that can be connected or is connected to the circuit section in order to operate the circuit section, a second voltage regulator that can be connected or is connected to the circuit section in order to preserve an information item stored in the memory elements, a switching device that is connected to the circuit section and is designed to deactivate and activate inputs of the circuit section. The circuit being configured to control a deactivation and activation of the first voltage regulator and the deactivation and activation of the inputs of the circuit section.
    • 提供了一种用于操作电路的电路和方法,其包括具有多个存储元件的电路部分,可以连接或连接到电路部分以便操作电路部分的第一电压调节器,第二电压调节器 可以连接或连接到电路部分,以便保存存储在存储元件中的信息项,连接到电路部分并被设计为停用和激活电路部分的输入的开关装置。 电路被配置为控制第一电压调节器的去激活和激活以及电路部分的输入的去激活和激活。
    • 10. 发明授权
    • Circuit of a node and method for transit time measurement in a radio network
    • 节点的电路和无线电网络中的传输时间测量方法
    • US09239370B2
    • 2016-01-19
    • US12824874
    • 2010-06-28
    • Tilo FerchlandMichael SchmidtEric Sachse
    • Tilo FerchlandMichael SchmidtEric Sachse
    • H04L1/16G01S5/02H04J3/06H04L1/18H04L1/20H04W56/00G01S13/76
    • H04W4/02G01S5/0289G01S13/765H04J3/0682H04L1/1848H04L1/188H04L1/205H04W56/0055H04W56/0065
    • A circuit of a node in a radio network and method for transit time measurement between a first node and a second node of a radio network is provided. A frame is transmitted by the first node, wherein the frame requires an acknowledgment of reception by the second node. A first point in time of the transmission of the frame is established by the first node by a time counter. The frame is received by the second node at a second point in time. The acknowledgment is transmitted by the second node to the first node at a third point in time, wherein the third point in time depends on the second point in time by a predetermined time interval between the second point in time and the third point in time. A fourth point in time is established by the first node by the time counter when the acknowledgment is received. The transit time or the change in transit time is determined from the first point in time established by the time counter and from the established fourth point in time and from the predetermined time interval.
    • 提供无线电网络中的节点的电路和无线电网络的第一节点和第二节点之间的传输时间测量方法。 帧由第一节点发送,其中帧需要由第二节点接收的确认。 帧的发送的第一时间点由第一节点通过时间计数器建立。 帧在第二时间点由第二节点接收。 所述确认在第三时间点由所述第二节点发送到所述第一节点,其中所述第三时间点在所述第二时间点上依赖于所述第二时间点在所述第二时间点和所述第三时间点之间的预定时间间隔。 当接收到确认时,由第一节点通过时间计数器建立第四时间点。 从通过时间计数器建立的第一时间点和从建立的第四时间点到预定的时间间隔确定通行时间或通行时间的变化。