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1. CN101124821 - Location detector for digital cable television appliances

Office
China
Application Number 200580019228.4
Application Date 13.05.2005
Publication Number 101124821
Publication Date 13.02.2008
Publication Kind A
IPC
H04N 7/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
16Analogue secrecy systems; Analogue subscription systems
Applicants Sony Electronics Inc.
索尼电子有限公司
Inventors Pedlow Leo M. Jr.
L·M·小佩德洛
Sadja Aran London
A·L·萨亚
Holcomb Eric James
E·J·霍尔库姆
Agents wangyong
中国专利代理(香港)有限公司
中国专利代理(香港)有限公司
Priority Data 11085369 21.03.2005 US
60/580,153 15.06.2004 US
Title
(EN) Location detector for digital cable television appliances
(ZH) 数字有线电视设备的位置检测器
Abstract
(EN) A method of auditing operation of a cable television appliance consistent with certain embodiments involves detecting an event that triggers an audit; generating a fingerprint value, wherein the fingerprint value is function of the cable television network characteristics at an authorized installation location; comparing the fingerprint value with a stored reference value; if the fingerprint value is within specified limits of the stored reference value, permitting the cable television appliance to carry out a normal operational function; and if the fingerprint value is outside of specified limits of the stored reference value, inhibiting the cable television appliance from carrying out a normal operational function. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.
(ZH)

一种符合某些实施例的有线电视设备的审核操作方法包括:检测触发审核的事件;生成指纹值,该指纹值是授权安装地点的有线电视网络特性的函数;将指纹值和存储的参考值进行比较;如果指纹值处于存储的参考值的指定范围之内,则允许有线电视设备执行正常的操作功能;如果指纹值处于存储的参考值的指定范围之外,则禁止有线电视设备执行正常的操作功能。不应将该摘要视为限制性的,因为其他实施例可能具有不同于本摘要所描述的特征。