会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 23. 发明申请
    • Time transfer using ultra wideband signals
    • 使用超宽带信号进行时间传输
    • US20080151967A1
    • 2008-06-26
    • US11980529
    • 2007-10-31
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • H04B1/707
    • G01S7/4052G01S13/0209G01S13/765G01S2007/4065G01S2007/4069G01S2007/4082G06K7/10306H04B1/7183
    • Time is transferred from an ultra wideband (UWB) transmitter to UWB receiver by transmitting a signal structure having an associated timing reference point together with a time value for the timing reference point. The UWB receiver receives the timing signal structure by synchronizing a receiver time base to the signal structure, demodulating the time value information, and using the demodulated time value information to set a receiver clock value. Propagation delay information is used to adjust the receiver clock value by advancing the receiver clock value to account for the propagation delay. In one embodiment, propagation delay is determined from a known distance between the transmitter and receiver. In another embodiment, the transmitter and receiver are part of a two-way link wherein propagation delay is measured by round trip timing measurements.
    • 通过发送具有相关联的定时参考点的信号结构以及定时参考点的时间值,将时间从超宽带(UWB)发射机传送到UWB接收机。 UWB接收机通过将接收机时基同步到信号结构,解调时间值信息,并使用解调时间值信息来设置接收机时钟值来接收定时信号结构。 传播延迟信息用于通过提高接收机时钟值来考虑传播延迟来调整接收机时钟值。 在一个实施例中,从发射机和接收机之间的已知距离确定传播延迟。 在另一个实施例中,发射机和接收机是双向链路的一部分,其中通过往返定时测量来测量传播延迟。
    • 25. 发明授权
    • Method for mitigating effects of interference in impulse radio communication
    • 减轻冲突无线电通信干扰影响的方法
    • US06823022B1
    • 2004-11-23
    • US09587033
    • 2000-06-02
    • Larry W. FullertonJames L. RichardsVernon R. BrethourMark D. RobertsMark A. BarnesIvan A. CowieDonald D. Mondul
    • Larry W. FullertonJames L. RichardsVernon R. BrethourMark D. RobertsMark A. BarnesIvan A. CowieDonald D. Mondul
    • H04B1500
    • H04B1/719H04B2001/6908
    • A method for mitigating interference in impulse radio communication conveying a message from a transmitting station to a receiving station. The method comprises the steps of: (a) conveying the message in packets; (b) repeating conveyance of selected packets to make up a repeat package; and (c) conveying the repeat package a plurality of times at a repeat period greater than twice the occurrence period of the interference. The communication may convey a message from a proximate transmitter to a distal receiver, and receive a message by a proximate receiver from a distal transmitter. In such a system, the method comprises the steps of: (a) providing interference indications by the distal receiver to the proximate transmitter; (b) using the interference indications to determine predicted noise periods; and (c) operating the proximate transmitter to convey the message according to at least one of the following: (1) avoiding conveying the message during noise periods; (2) conveying the message at a higher power during noise periods; (3) varying error detection coding in the message during noise periods; (4) retransmitting the message following noise periods; (5) avoiding conveying the message when interference is greater than a first strength; (6) conveying the message at a higher power when the interference is greater than a second strength; (7) varying error detection coding in the message when the interference is greater than a third strength; and (8) retransmitting a portion of the message after interference has subsided to less than a predetermined strength.
    • 一种用于减轻从发射站向接收站传送消息的脉冲无线电通信中的干扰的方法。 该方法包括以下步骤:(a)以消息的形式传送消息; (b)重复输送所选择的数据包以构成重复包; 和(c)以大于干扰发生周期的两倍的重复周期传送重复包多次。 通信可以将消息从邻近发射机传送到远端接收机,并且从远端发射机接收邻近接收机的消息。 在这种系统中,该方法包括以下步骤:(a)将远端接收机的干扰指示提供给邻近发射机; (b)使用干扰指示来确定预测的噪声周期; (c)根据以下至少一项操作近邻发射机传送消息:(1)避免在噪声周期期间传送消息; (2)在噪声期间以较高的功率传送消息; (3)在噪声周期期间在消息中改变错误检测编码; (4)在噪声周期后重传消息; (5)当干扰大于第一强度时避免传达消息; (6)当干扰大于第二强度时,以更高的功率传送消息; (7)当干扰大于第三强度时,在消息中改变错误检测编码; 和(8)在干扰之后将消息的一部分重新发送到小于预定的强度。
    • 29. 发明申请
    • Stepping motor with a coded pole pattern
    • 具有编码极点图案的步进电机
    • US20120026843A1
    • 2012-02-02
    • US13270823
    • 2011-10-11
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • Larry W. FullertonMark D. RobertsJames L. Richards
    • G04C3/14H02P8/08
    • G09F7/04H02K1/27H02K29/00
    • The present invention relates to a stepping motor with a magnet pole pattern having a predetermined pattern around the circumference of the stepping motor. In one embodiment, the pattern relates to a code having a unique single maximum autocorrelation peak over the period of the code. Example codes include Barker codes, PN codes, Kasami codes, Golomb ruler codes, and other codes. In one embodiment, the rotor and stator have a matching pole pattern. In one embodiment, the drive is arranged to align the poles in an inline configuration, alternatively, the drive may be arranged to align the poles in a diagonal configuration. In a further embodiment, one or more sets of poles are provided on the stator, each set being offset rotationally by a partial pole spacing. In one embodiment, the rotor is initially synchronized with the stator by capturing the rotor using a single unambiguous lock-in position based on the code autocorrelation.
    • 本发明涉及一种步进电动机,该步进电动机具有围绕步进电动机的圆周具有预定图案的磁极图案。 在一个实施例中,该模式涉及在代码周期中具有唯一的单个最大自相关峰值的代码。 示例代码包括Barker码,PN码,Kasami码,Golomb标尺码和其他码。 在一个实施例中,转子和定子具有匹配的极图。 在一个实施例中,驱动器被布置成将线杆对准配置,或者可以将驱动器布置成以对角线配置对准极点。 在另一实施例中,在定子上设置一组或多组极点,每组都以部分磁极间隔旋转偏移。 在一个实施例中,转子最初与定子同步,通过使用基于代码自相关的单个明确的锁定位置捕获转子。