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Применить Всего найдено 3. Отображено 3.
02-10-2013 дата публикации

Concurrent decoding of a composite packetized audio-video data stream according to packet arrival times

Номер: GB0002500616A
Автор: GUTTA SRI GOPIKANTH [GB], YAMAMOTO KOHEI [GB], GUTTA SRI GOPIKANTH, YAMAMOTO KOHEI, SRI GOPIKANTH GUTTA, KOHEI YAMAMOTO
Принадлежит:

An audio/video content receiver has a content decoder capable of concurrently decoding two or more audio/video programmes from a single packetized data stream of encoded audio/video data packets 400, 402. The receiver receives encoded audio/video content as two or more packetized data streams TS1 and TS2, each data stream comprising one or more programmes having respective encoded audio/video data packets. It then generates a composite packetized data stream having programme data from the packetized data streams by selecting a subset of data packets from the received packetized data streams, the subset including those audio/video data packets relating to those programmes to be decoded. Timing data indicating at least an arrival time of those audio/video data packets included in the composite packetized data stream is stored, preferably adjacent to each packet as private data or in a DVB table. The receiver then decodes and outputs audio/video programme data from the composite packetized ...

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Номер записи: 1
02-10-2013 дата публикации

Method of processing received audio/visual data stream, selecting further data packets when packet identifiers (PIDs) are not included

Номер: GB0002500615A
Автор: GUTTA SRI GOPIKANTH [GB], HILL-JOWETT DAVID RICHARD [GB], SZUCS PAUL [DE], GUTTA SRI GOPIKANTH, HILL-JOWETT DAVID RICHARD, SZUCS PAUL, SRI GOPIKANTH GUTTA, DAVID RICHARD HILL-JOWETT, PAUL SZUCS
Принадлежит:

A method of operating an audio/video (AV) content receiver (e.g., set-top box (STB)) having a decoder for an audio/video programme from a packetized data stream, using data packets defining decryption information, comprises: receiving encoded content as a packetized data stream comprising one or more programmes having data packets identified by respective sets of one or more packet identifiers (PIDs) and comprising identification (ID) data mapping programmes to respective sets of PIDs; selecting data packets from the stream for a required programme according to the set of packet identifiers defined by the identification data for that stream in respect of the required programme; selecting further, additional data packets from the stream which have packet identifiers (PIDs) not included in the identification data for that packetized data stream; generating a composite packetized data stream from selected packets; generating composite stream identification data indicating packet identifiers ...

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Номер записи: 2
16-07-2014 дата публикации

Receiving audio/visual content-related non-viewing information via unused transmission channels

Номер: GB0002509759A
Автор: GUTTA SRI GOPIKANTH [GB], GUTTA SRI GOPIKANTH, SRI GOPIKANTH GUTTA
Принадлежит:

A method of operating an audio/video (AV) content receiver for receiving and decoding AV data signals modulated onto transmission channels as packetized transport streams (TS), at least one transmission channel carrying non-viewing information, comprises: concurrently tuning to two or more transmission channels, outputting two or more packetized transport streams; generating a composite (multiplexed) data signal from the received AV signals for decoding; allocating, at the receiver, a local identification (ID) value to each packetized transport stream to identify data in the composite data signal; detecting (e.g., using a conditional access unit, CAM) 362 whether one or more transmission channels tuned by the tuner arrangement are not currently in use for providing a programme for decoding; and, in response, controlling the tuner to tune that (unused) channel to a transmission channel carrying a packetized TS including non-viewing information; identifying packets of the non-viewing information ...

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Номер записи: 3