Abstract:
A system may route media stream samples in time-stamped packets to a media interface. The system may determine a hash value from a stream identifier that identifies a source media stream corresponding to the media stream samples. The hash value may be determined based on a combination of a first portion of the stream identifier and a second portion of the stream identifier. The system may determine whether the stream identifier identifies a subscribed media stream by looking up the hash value in a hash table. The system may route the media stream samples to a media interface if source media stream is a subscribed media stream.
Abstract:
A memory management unit (MMU) may buffer media stream samples of one or more media streams, such as audio and/or video streams, in a buffer. The MMU may determine how much time a media stream sample is to be buffered by comparing a value of a real-time clock with a timestamp associated with the media stream sample. The MMU may determine a target output block in the buffer for the media stream sample based on the period of a media clock and on the amount of buffer time that the media stream sample is to be buffered. The target output block is determined relative to an output block identified by a read address. The MMU may store the media stream sample in the target output block. The MMU may increase or decrease the read address at a rate determined by the media clock.
Abstract:
A packet processing apparatus (100) includes a packet identifying unit (102) and a packet modifying unit (104). The packet identifying unit (102) is utilized for receiving a plurality of packets and checking identification information and data length information which are derived from the received packets to identify first packets from the received packets. The packet modifying unit (104) is coupled to the packet identifying unit (102), and is utilized for checking payloads of the first packets to identify second packets from the first packets, where each of the second packets has specific data included in a payload thereof, and for modifying at least the payload of each of the second packets.
Abstract:
A broadcast targeting system is provided where third party database information is utilized in conjunction with broadcast network client information to identify households within the broadcast network including one or more desired recipients of targeted assets. In instances where a user equipment device of the targeted household includes multiple users (i.e., a multiple-user device), use of third party data in conjunction with an indication of which household member is currently using the multiple user device (e.g., set top box, etc.) allows for more effectively delivering assets targeted to a specific member(s) of the household
Abstract:
A device to output video and/or audio data (for example, corresponding to a selected channel which is one of a plurality of channels of a broadcast spectrum), the device comprising (i) baseband processor circuitry to demodulate a baseband signal into a data stream (for example, MPEG type data stream, such as an MPEG-2 transport or program data stream) having a plurality of packets including a plurality of video and/or audio packets wherein each video and/or audio packet includes video and/or audio payload, (ii) de-multiplexer circuitry, coupled to the baseband processor circuitry, to: (a) de-multiplex the data stream to obtain the video and/or audio payload of the plurality of video and/or audio packets, (b) detect and locate one or more errors in one or more of the video and/or audio packets, and (c) generate error characterization data (for example, information which is representative of the type of error and/or the location of the error in the video and/or audio payload) which is representative of or characterizes one or more errors in the one or more of the video and/or audio packets; and (iii) decoder circuitry, coupled to the de-multiplexer circuitry, to: (a) receive the video and/or audio payload and the error characterization data, and (b) conceal the one or more errors in the video and/or audio payload using the error characterization data.