Data selection/storage apparatus and data processing apparatus using data selection/storage apparatus
First Claim
1. A data selection/storage apparatus having a data selection means for selecting specific kinds of data from multiplexed data in which plural kinds to data are multiplexed, and a data storage means having plural storage areas for holding the data selected by the data selection means, wherein among the data selected by the data selection means, plural kinds of data which have previously been specified are multiplexed and stored in one storage area by the data storage means.
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Accused Products
Abstract
A demultiplexer is provided with a PID extractor for extracting a PID of each TS packet from an inputted transport stream; a PID comparator for detecting whether or not the extracted PID matches any of PIDs which are set on a PID table, and outputting an entry number of the PID table where the corresponding PID is set, as a matching PID entry number, when a match is detected; a packet selector for selecting TS packets whose PIDs are detected by the PID comparator; and a data storage controller for determining an area in a memory where each TS packet is to be stored, according to the matching PID entry number; wherein TS packets having different PIDs are multiplexed and stored into a video data storage area in the memory. Therefore, when plural kinds of video data are included in the same program on digital broadcasting, these plural kinds of video data can be reproduced simultaneously.
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Citations
12 Claims
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1. A data selection/storage apparatus having a data selection means for selecting specific kinds of data from multiplexed data in which plural kinds to data are multiplexed, and a data storage means having plural storage areas for holding the data selected by the data selection means, wherein
among the data selected by the data selection means, plural kinds of data which have previously been specified are multiplexed and stored in one storage area by the data storage means.
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9. A data selection/storage apparatus as defined in claim 0, wherein
when the kind of data to be inputted to the data selection/storage apparatus should be changed, information indicating the kind of data to be newly inputted is transmitted, in advance of the change, to the external control circuit; - and
the information in each identification number entry which is stored in the identification number storage means is newly set on the basis of the information indicating the kind of data to be newly inputted.
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10. A data processing apparatus comprising:
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a data selection/storage unit having a data selection means for selecting specific kinds of data from multiplexed data in which plural kinds of data are multiplexed, and a data storage means having plural storage areas for holding the data selected by the data selection means; and
a data reproduction unit for reading the data stored in the data storage means of the data selection/storage unit, and reproducing the read data;
wherein said data selection/storage unit stores plural kinds of data, among the data selected by the data selection means, into plural storage areas, respectively; and
said data reproduction unit is able to output plural data request signals as many as the number of kinds of data to be reproduced simultaneously.
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Specification