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1. WO2005094212 - VERIFYING 22KHZ TONE OPERATION IN A SET-TOP BOX

Publication Number WO/2005/094212
Publication Date 13.10.2005
International Application No. PCT/US2004/026213
International Filing Date 13.08.2004
IPC
H04N 7/20 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
20Adaptations for transmission via a GHz frequency band, e.g. via satellite
CPC
H04H 40/90
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
HBROADCAST COMMUNICATION
40Arrangements specially adapted for receiving broadcast information
18Arrangements characterised by circuits or components specially adapted for receiving
27specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
90specially adapted for satellite broadcast receiving
H04N 21/42607
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
41Structure of client; Structure of client peripherals
426Internal components of the client ; ; Characteristics thereof;
42607for processing the incoming bitstream
H04N 21/438
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
438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
H04N 21/6143
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client ; , e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
61Network physical structure; Signal processing
6106specially adapted to the downstream path of the transmission network
6143involving transmission via a satellite
H04N 7/20
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
20Adaptations for transmission via a GHz frequency band, e.g. via satellite
Applicants
  • THOMSON LICENSING [FR]/[FR] (AllExceptUS)
  • BAJGROWICZ, Brian, David [US]/[US] (UsOnly)
Inventors
  • BAJGROWICZ, Brian, David
Agents
  • TRIPOLI, Joseph, S.
Priority Data
60/551,43509.03.2004US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) VERIFYING 22KHZ TONE OPERATION IN A SET-TOP BOX
(FR) VERIFICATION DE FONCTIONNEMENT DE LA TONALITE 22 KHZ DANS UN DECODEUR
Abstract
(EN)
A set top box (100) arrangement includes transmitting circuitry (104) for transmitting a message and an emulated reply to the message, and receiver circuitry (105) for receiving the control message and comparing the control message to the emulated reply to the message. The transmitted message and emulated reply message are each a digital satellite equipment control message. The emulated reply message that was received is compared with the reply that was transmitted to verify 22kHz tone operation of a low noise block downconverter power supply.
(FR)
La présente invention a trait à un agencement de décodeur comportant un circuit de transmission pour la transmission d'un message et d'une réponse émulée au message, et un circuit de réception pour la réception du message de contrôle et la comparaison du message de contrôle avec la réponse émulée au message. Le message transmis et le message de réponse émulée sont chacun un message de contrôle d'équipement par satellite numérique. Le message de réponse émulée qui a été reçue est comparée avec la réponse qui a été transmise pour la vérification de fonctionnement de la tonalité 22 KHz d'une alimentation de convertisseur-abaisseur de fréquence à faible bruit.
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