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1. EP1757096 - LOCATION DETECTOR FOR DIGITAL CABLE TELEVISION APPLIANCES

Office
European Patent Office
Application Number 05751940
Application Date 13.05.2005
Publication Number 1757096
Publication Date 28.02.2007
Publication Kind A4
IPC
H04N 7/10
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
10Adaptations for transmission by electrical cable
H04N 7/16
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
16Analogue secrecy systems; Analogue subscription systems
H04N 7/173
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
16Analogue secrecy systems; Analogue subscription systems
173with two-way working, e.g. subscriber sending a programme selection signal
CPC
H04N 7/106
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
10Adaptations for transmission by electrical cable
106for domestic distribution
H04N 7/163
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
16Analogue secrecy systems; Analogue subscription systems
162Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
163by receiver means only
H04N 7/17336
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
16Analogue secrecy systems; Analogue subscription systems
173with two-way working, e.g. subscriber sending a programme selection signal
17309Transmission or handling of upstream communications
17336Handling of requests in head-ends
H04N 21/44209
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
44209Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
H04N 21/44236
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
44236Monitoring of piracy processes or activities
H04N 21/4424
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
442Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
4424Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
Applicants SONY ELECTRONICS INC
Inventors PEDLOW LEO M JR
SADJA ARAN LONDON
HOLCOMB ERIC JAMES
Designated States
Priority Data 58015304 15.06.2004 US
11085369 21.03.2005 US
Title
(DE) STANDORTDETEKTOR FÜR DIGITALE KABELFERNSEHANWENDUNGEN
(EN) LOCATION DETECTOR FOR DIGITAL CABLE TELEVISION APPLIANCES
(FR) DETECTEUR D'EMPLACEMENT POUR APPAREILS DE CABLODISTRIBUTION
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 applicance to carry out a normal operational function; and if the fingerprint value is outside of spsecified limits of the stored reference value, inhibiting the cable television applicance from carrying out a normal operational function. This abstract is not to be considered limiting, since other embodiments may deviate from the featurs described in this abstract.
(FR) Selon certains modes de réalisation, l'invention concerne un procédé destiné à vérifier le fonctionnement d'un appareil de câblodistribution et consistant à détecter un événement qui déclenche une vérification, à générer une valeur d'empreinte, cette valeur d'empreinte dépendant des caractéristiques du réseau de câblodistribution au niveau d'un emplacement d'installation autorisé, à comparer la valeur d'empreinte avec une valeur de référence stockée, à permettre à l'appareil de câblodistribution de fonctionner normalement si la valeur d'empreinte est comprise dans des limites spécifiées de la valeur de référence stockée, et à empêcher l'appareil de câblodistribution de fonctionner normalement si la valeur d'empreinte sort des limites spécifiées pour la valeur de référence stockée. Le présent abrégé ne doit pas être considéré comme restrictif, d'autres modes de réalisation pouvant s'écarter des caractéristiques décrites ci-dessus.