公开(公告)号：US09455766B2

公开(公告)日：2016-09-27

申请号：US14812916

申请日：2015-07-29

Applicant: Cable Television Laboratories, Inc.

Inventor： Thomas H. Williams ,  Colin Justis

IPC: H04B3/46 ,  H04B1/16 ,  G01R31/08 ,  G01S5/02 ,  G01R31/02

CPC classification number: H04B3/46 ,  G01R31/025 ,  G01R31/08 ,  G01R31/083 ,  G01S5/02 ,  H04B1/16

Abstract: Embodiments described provide detection of RF leaks in a coaxial cable of a cable plant. One embodiment comprises a mobile device that includes an antenna, a quadrature demodulator, and a controller. The antenna receives an RF signal from an RF leak in the coaxial cable. The quadrature demodulator demodulates the RF signal to generate IQ data. The controller determines changes in a phase angle of the RF signal based on the IQ data generated as the mobile device is in motion, and identifies that the mobile device is travelling toward the RF leak responsive to determining that the phase angle is advancing. The controller identifies that the mobile device is travelling away from the RF leak responsive to determining that the phase angle is retarding.

Abstract translation: 所描述的实施例提供了对电缆设备的同轴电缆中的RF泄漏的检测。 一个实施例包括包括天线，正交解调器和控制器的移动设备。 天线从同轴电缆中的RF泄漏接收RF信号。 正交解调器解调RF信号以产生IQ数据。 控制器基于随着移动设备在运动中生成的IQ数据来确定RF信号的相位角的变化，并且响应于确定相位角正在前进，识别移动设备正朝向RF泄漏行进。 响应于确定相位角正在延迟，控制器识别移动设备正在远离RF泄漏。

公开(公告)号：US20160036492A1

公开(公告)日：2016-02-04

申请号：US14812916

申请日：2015-07-29

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： Thomas H. Williams ,  Colin Justis

IPC: H04B3/46 ,  G01S3/14 ,  H04B1/16

CPC classification number: H04B3/46 ,  G01R31/025 ,  G01R31/08 ,  G01R31/083 ,  G01S5/02 ,  H04B1/16

Abstract: Embodiments described provide detection of RF leaks in a coaxial cable of a cable plant. One embodiment comprises a mobile device that includes an antenna, a quadrature demodulator, and a controller. The antenna receives an RF signal from an RF leak in the coaxial cable. The quadrature demodulator demodulates the RF signal to generate IQ data. The controller determines changes in a phase angle of the RF signal based on the IQ data generated as the mobile device is in motion, and identifies that the mobile device is travelling toward the RF leak responsive to determining that the phase angle is advancing. The controller identifies that the mobile device is travelling away from the RF leak responsive to determining that the phase angle is retarding.

Abstract translation: 所描述的实施例提供了对电缆设备的同轴电缆中的RF泄漏的检测。 一个实施例包括包括天线，正交解调器和控制器的移动设备。 天线从同轴电缆中的RF泄漏接收RF信号。 正交解调器解调RF信号以产生IQ数据。 控制器基于随着移动设备在运动中生成的IQ数据来确定RF信号的相位角的变化，并且响应于确定相位角正在前进，识别移动设备正朝向RF泄漏行进。 响应于确定相位角正在延迟，控制器识别移动设备正在远离RF泄漏。