发明名称 Identification of a fault
摘要 An apparatus, method, and system are provided for determining a location of an error source. Equalization coefficients may be retrieved and an average period of time between localized peak amplitudes may be determined. The average period of time may be multiplied by a velocity of propagation associated with a communication channel to determine an approximate location of the error source. The equalization coefficients may correspond to the inverse of the frequency response associated with the communication channel and may be updated over time using replacement or combination (e.g., convolution) techniques.
申请公布号 US9479515(B2) 申请公布日期 2016.10.25
申请号 US201313782573 申请日期 2013.03.01
申请人 Comcast Cable Communications, LLC 发明人 Wolcott Lawrence D.;Chang Philip F.
分类号 H04L25/03;H04L29/06;H04L12/26;H04L29/08;H04L25/02 主分类号 H04L25/03
代理机构 Banner & Witcoff, Ltd. 代理人 Banner & Witcoff, Ltd.
主权项 1. A method comprising: transmitting, by a computing device and to a user terminal, a first set of equalization coefficients and a parameter indicating that the user terminal is to replace a second set of equalization coefficients with the first set of equalization coefficients; receiving, by the computing device and from the user terminal, a communication having distortion compensation based, at least in part, on the first set of equalization coefficients; determining, by the computing device, a third set of equalization coefficients associated with the communication; determining, by the computing device, a location of an error source relative to a location of the user terminal based, at least in part, on the third set of equalization coefficients; and in response to determining that the first set of equalization coefficients does not match the third set of equalization coefficients within a threshold amount, determining that the error occurred at one or more of the computing device or the user terminal.
地址 Philadelphia PA US