Digital data processing from mutiple streams of data
First Claim
1. A data processing system for data received by a broadcast data receiver, said receiver provided for receiving multiple streams of digital data which are transmitted from a remote location, said data in each stream comprising a series of packets of data and provided with associated codes to indicate the type of data i.e. video, audio and/or auxiliary data, said receiver provided with means which allow the selection and combination of packets of data from the said multiple streams of data in response to control commands, said selected packets of data combined to form a single stream of data and said single stream of data further processed to generate video and/or audio and/or auxiliary data, each stream of data including a transport packet of identification codes for the packets of data in the stream and characterised in that an identification code is added to the streams of data which serves to identify and differentiate each of the streams of data received by the receiver.
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Accused Products
Abstract
The invention relates to a system and method for the generation of television channels and which allows the generation of the same by the processing and selection of designated packets of data from multiple data transport streams, with each transport stream including numerous packets of data. In each transport stream the packet of data is identified by the allocation of a packet identification Code (PID) and each is held in the transport packet which is transmitted as part of each transport stream. In accordance with the invention, and in order to prevent errors and inaccurate packet selection, a Transport Stream Identification Code (TSID) is allocated to each of the transport streams of data received. Typically the TSID is located in the transport packet for each transport stream of data. In the selection of a packet of data, the appropriate TSID is referred to identify the appropriate transport stream and the PID then referred to identify the packet of data from that transport stream.
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Citations
9 Claims
- 1. A data processing system for data received by a broadcast data receiver, said receiver provided for receiving multiple streams of digital data which are transmitted from a remote location, said data in each stream comprising a series of packets of data and provided with associated codes to indicate the type of data i.e. video, audio and/or auxiliary data, said receiver provided with means which allow the selection and combination of packets of data from the said multiple streams of data in response to control commands, said selected packets of data combined to form a single stream of data and said single stream of data further processed to generate video and/or audio and/or auxiliary data, each stream of data including a transport packet of identification codes for the packets of data in the stream and characterised in that an identification code is added to the streams of data which serves to identify and differentiate each of the streams of data received by the receiver.
- 7. A method for the generation of a single stream of data for subsequent processing, from multiple transport streams of data, said method comprising the steps of receiving a number of transport streams of data, and selecting packets of data in accordance with user and/or receiver selection criteria and multiplexing the said selected packets of data into a single stream of data and cbaracterised in that an identification code (TSID) is allocated to each of the received transport streams of data and when the selection of a data packet is required, the selection is controlled with reference to an appropriate identification code for the particular transport stream of data in which the data packet to be selected is located and the required data packet selected therefrom.
Specification