PROCEDE D'INDEXATION DE DONNEES DANS UN SYSTEME DE TRANSMISSION DE TELEVISION NUMERIQUE

• Main Authors: STRAUB GILLES, DENIAU ERIC
• Format: Patent
• Language: French
• Published: 07.09.2001
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

Method for indexing data in a digital television transmission system, in particular DVB. The transmission system comprises at least one receiver, which performs the following steps: extracting from a transmitted digital data stream hierarchically organized lists of networks, channels, services, events or descriptors of the same type; creating for each extracted list an array comprising an address pointer for each element of said extracted list, each address pointer pointing towards a memory area of said receiver in which additional information concerning each element is stored; referring to a given element in a list using a logic key composed of the juxtaposition of the index of said given element in the array to which it belongs and indexes of elements above said given element in said hierarchy. The invention can be used in the field of digital television (DVB, DSS...)