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    • 1. 发明授权
    • Leakage location methods
    • 泄漏定位方法
    • US09021539B2
    • 2015-04-28
    • US13310041
    • 2011-12-02
    • Raleigh Benton Stelle, IV
    • Raleigh Benton Stelle, IV
    • H04N7/173H04N7/16G06F19/00G01R31/00H04N17/00H04B3/32H04L29/00G01R31/08
    • H04N17/00G01R31/001G01R31/083H04B3/32H04L29/00
    • “Cradle-to-grave” treatment of leaks begins with technicians logging leakage signal strengths and GPS latitude and longitude coordinates in technicians' vehicles as the technicians go about their daily assignments. Leakage signal strengths and GPS latitude and longitude coordinates are then uploaded to a leakage server. The server calculates leak latitude and longitude coordinates and signal strengths. The system sends the leakage signal strengths and/or calculated leak latitude and longitude coordinates to technicians' vehicles, for example, as components of, or attachments to, work orders. The latitudes and longitudes are converted by GPS navigators in the technicians' vehicles to turn-by-turn directions to the calculated leak locations. The technicians drive to the leaks, identify and repair them, and close the work orders.
    • “摇篮到坟墓”的泄漏处理开始于技术人员在技术人员的车辆中记录泄漏信号强度和GPS纬度和经度坐标,因为技术人员正在进行日常任务。 泄漏信号强度和GPS纬度和经度坐标然后上传到泄漏服务器。 服务器计算泄漏纬度和经度坐标和信号强度。 系统向技术人员的车辆发送泄漏信号强度和/或计算的泄漏纬度和经度坐标,例如作为工单的组成部分或附件。 纬度和经度由技术人员车辆中的GPS导航仪转换成计算出的泄漏位置的转弯方向。 技术人员开车泄漏,识别和修理,并关闭工单。
    • 3. 发明申请
    • Leakage Location Methods
    • 泄漏位置方法
    • US20120116697A1
    • 2012-05-10
    • US13310041
    • 2011-12-02
    • Raleigh Benton Stelle, IV
    • Raleigh Benton Stelle, IV
    • G06F19/00G01R31/00
    • H04N17/00G01R31/001G01R31/083H04B3/32H04L29/00
    • “Cradle-to-grave” treatment of leaks begins with technicians logging leakage signal strengths and GPS latitude and longitude coordinates in technicians' vehicles as the technicians go about their daily assignments. Leakage signal strengths and GPS latitude and longitude coordinates are then uploaded to a leakage server. The server calculates leak latitude and longitude coordinates and signal strengths. The system sends the leakage signal strengths and/or calculated leak latitude and longitude coordinates to technicians' vehicles, for example, as components of, or attachments to, work orders. The latitudes and longitudes are converted by GPS navigators in the technicians' vehicles to turn-by-turn directions to the calculated leak locations. The technicians drive to the leaks, identify and repair them, and close the work orders.
    • “摇篮到坟墓”的泄漏处理开始于技术人员在技术人员的车辆中记录泄漏信号强度和GPS纬度和经度坐标,因为技术人员正在进行日常任务。 泄漏信号强度和GPS纬度和经度坐标然后上传到泄漏服务器。 服务器计算泄漏纬度和经度坐标和信号强度。 系统向技术人员的车辆发送泄漏信号强度和/或计算的泄漏纬度和经度坐标,例如作为工单的组成部分或附件。 纬度和经度由技术人员车辆中的GPS导航仪转换成计算出的泄漏位置的转弯方向。 技术人员开车泄漏,识别和修理,并关闭工单。
    • 4. 发明申请
    • METHOD FOR DETECTING LEAKAGE IN DIGITALLY MODULATED SYSTEMS
    • 用于检测数字调制系统中泄漏的方法
    • US20140146864A1
    • 2014-05-29
    • US14128908
    • 2012-06-26
    • Raleigh Benton Stelle, IVDennis Lee Orndorff
    • Raleigh Benton Stelle, IVDennis Lee Orndorff
    • H04B3/46
    • H04N21/235H04B3/46H04N17/004
    • In a method for detecting leakage in a digital cable system, at least one first signal is inserted on the cable system. The at least one first signal has an amplitude multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received. The second signal is converted to an intermediate frequency (IF) signal. The IF signal is digitized and samples of the digitized IF signal are obtained. Digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are provided. The digitized IF signal and the digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are correlated. The presence of the inserted first signal is detected based upon the result of the correlation. In another method, a pair of first signals are inserted on the cable system. The pair of first signals are spaced apart a fixed frequency and with amplitudes multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received and converted to an intermediate frequency (IF) signal. The IF signal is digitized, samples of the digitized IF signal are obtained, and a large scale Fast Fourier Transform (FFT) is applied to the samples to generate an FFT output. The FFT output is examined for generally equally sized signals separated from each other by the fixed frequency in the FFT output. If generally equally sized signals separated from each other by the fixed frequency are detected in the FFT output, a decision is made that the second signal represents detected leakage from the digital cable system.
    • 在用于检测数字电缆系统中的泄漏的方法中,至少一个第一信号被插入到电缆系统上。 所述至少一个第一信号具有比所述电缆系统上承载的数字信道的数字信道功率低几十dB的幅度。 接收包含第一信号的第二信号。 第二信号被转换成中频(IF)信号。 IF信号被数字化,并获得数字化IF信号的采样。 提供了以最大幅度转换为IF的第一信号的标称频率的第三信号的数字化采样。 数字化IF信号和以最大幅度转换为IF的第一信号的标称频率的第三信号的数字化采样相关。 基于相关的结果来检测插入的第一信号的存在。 在另一种方法中,一对第一信号被插入到电缆系统上。 一对第一信号以固定频率间隔,并且具有比电缆系统上承载的数字信道的数字信道功率低几十dB的幅度。 接收包含第一信号的第二信号并转换成中频(IF)信号。 IF信号被数字化,获得数字化IF信号的采样,并将大规模快速傅里叶变换(FFT)应用于采样以产生FFT输出。 在FFT输出中,通过固定频率彼此分离的大致相等尺寸的信号检查FFT输出。 如果在FFT输出中检测到通常具有相同尺寸的信号彼此分离固定频率的信号,则判定第二信号表示来自数字电缆系统的检测到的泄漏。
    • 5. 发明授权
    • Method for detecting leakage in digitally modulated systems
    • 用于检测数字调制系统中泄漏的方法
    • US09160407B2
    • 2015-10-13
    • US14128908
    • 2012-06-26
    • Raleigh Benton Stelle, IVDennis Lee Orndorff
    • Raleigh Benton Stelle, IVDennis Lee Orndorff
    • H04L27/06H04B3/46H04N17/00
    • H04N21/235H04B3/46H04N17/004
    • In a method for detecting leakage in a digital cable system, at least one first signal is inserted on the cable system. The at least one first signal has an amplitude multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received. The second signal is converted to an intermediate frequency (IF) signal. The IF signal is digitized and samples of the digitized IF signal are obtained. Digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are provided. The digitized IF signal and the digitized samples of a third signal at the nominal frequency of the first signal at maximum amplitude converted to the IF are correlated. The presence of the inserted first signal is detected based upon the result of the correlation. In another method, a pair of first signals are inserted on the cable system. The pair of first signals are spaced apart a fixed frequency and with amplitudes multiple tens of dB below the digital channel power of the digital channels carried on the cable system. A second signal containing the first signal is received and converted to an intermediate frequency (IF) signal. The IF signal is digitized, samples of the digitized IF signal are obtained, and a large scale Fast Fourier Transform (FFT) is applied to the samples to generate an FFT output. The FFT output is examined for generally equally sized signals separated from each other by the fixed frequency in the FFT output. If generally equally sized signals separated from each other by the fixed frequency are detected in the FFT output, a decision is made that the second signal represents detected leakage from the digital cable system.
    • 在用于检测数字电缆系统中的泄漏的方法中,至少一个第一信号被插入到电缆系统上。 所述至少一个第一信号具有比所述电缆系统上承载的数字信道的数字信道功率低几十dB的幅度。 接收包含第一信号的第二信号。 第二信号被转换成中频(IF)信号。 IF信号被数字化,并获得数字化IF信号的采样。 提供了以最大幅度转换为IF的第一信号的标称频率的第三信号的数字化采样。 数字化IF信号和以最大幅度转换为IF的第一信号的标称频率的第三信号的数字化采样相关。 基于相关的结果来检测插入的第一信号的存在。 在另一种方法中,一对第一信号被插入到电缆系统上。 一对第一信号以固定频率间隔,并且具有比电缆系统上承载的数字信道的数字信道功率低几十dB的幅度。 接收包含第一信号的第二信号并转换成中频(IF)信号。 IF信号被数字化,获得数字化IF信号的采样,并将大规模快速傅里叶变换(FFT)应用于采样以产生FFT输出。 在FFT输出中,通过固定频率彼此分离的大致相等尺寸的信号检查FFT输出。 如果在FFT输出中检测到通常具有相同尺寸的信号彼此分离固定频率的信号,则判定第二信号表示来自数字电缆系统的检测到的泄漏。