Multi-format transport stream decoder
First Claim
1. A multi-format transport stream decoder being supplied with at least one of first transport streams formed by successive pieces of first packet data each generated based on one of a plurality of predetermined formats and provided with packet data identification information for identification, the decoder selectively performing a process desired by a user on the pieces of first packet data to generate a second transport stream, the decoder comprising:
- packet data process sequence storing means which stores at least one process sequence defined in advance for the respective pieces of first packet data;
process request information input means which inputs process request information indicative of a piece of said first packet data on which the process desired by the user is to be performed and a piece of a plurality of said process sequences that corresponds to the desired process;
transport stream identification information providing means which provides transport stream identification information indicative of the format defined for the first transport stream;
packet data retaining and identifying means which individually and sequentially retains the pieces of first packet data and extracts the transport stream identification information and the packet data identification information from the retained pieces of first packet data; and
data filtering means for process target packet data, the data filtering means comparing the extracted transport stream identification information and packet data identification information with the process request information, and generating a process target decision signal indicative of whether a piece of the retained pieces of first packet data is a target of the desired process.
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Accused Products
Abstract
In a multi-format transport stream decoder that performs a desired process on first transport streams of different formats to generate a second transport stream, a process request information input unit (APR) is supplied with process target packet data (Pi) and process request information (ScW) indicative of process details. A stream identification information providing unit (TSRi) provides stream identification information (TSID). A packet data retaining and identifying unit (DBA) retains each pieces of first packet data (Pi), and compares the stream identification information (TSIDe) and packet data identification information (PIDe) of the first packet data (Pi) with the process request information (ScW) to determine whether the information is to be processed.
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Citations
6 Claims
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1. A multi-format transport stream decoder being supplied with at least one of first transport streams formed by successive pieces of first packet data each generated based on one of a plurality of predetermined formats and provided with packet data identification information for identification, the decoder selectively performing a process desired by a user on the pieces of first packet data to generate a second transport stream, the decoder comprising:
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packet data process sequence storing means which stores at least one process sequence defined in advance for the respective pieces of first packet data;
process request information input means which inputs process request information indicative of a piece of said first packet data on which the process desired by the user is to be performed and a piece of a plurality of said process sequences that corresponds to the desired process;
transport stream identification information providing means which provides transport stream identification information indicative of the format defined for the first transport stream;
packet data retaining and identifying means which individually and sequentially retains the pieces of first packet data and extracts the transport stream identification information and the packet data identification information from the retained pieces of first packet data; and
data filtering means for process target packet data, the data filtering means comparing the extracted transport stream identification information and packet data identification information with the process request information, and generating a process target decision signal indicative of whether a piece of the retained pieces of first packet data is a target of the desired process. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification