Data processing apparatus, reproduction apparatus, data processing system and reproduction method
A technology of data processing equipment and reproduction equipment, which is applied to the parts of TV systems, TVs, and color TVs, etc., which can solve problems such as poor response and achieve the effect of reducing the processing load
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no. 1 example
[0042] FIG. 1 is a view of the overall configuration of a data processing system 1 according to an embodiment of the present invention. As shown in FIG. 1 , a data processing system 1 has, for example, a computer 2 and a reproduction device 4 .
[0043] [Computer 2]
[0044] As shown in FIG. 1 , the computer 2 has an HDD 12 , a bridge 14 , a memory 16 , a bridge 18 , an operating device 19 , and a CPU 20 . It is to be noted that the memory 16 stores a predetermined program PRG1 (the program of the fifth aspect of the present invention), and the CPU 20 reads out and executes this program to perform the following processing. The predetermined program may be stored in a semiconductor memory or other memory 16, or may be stored on an HDD, an optical disk, or other storage medium.
[0045] For example, the HDD 12 stores reproduction data ENC encoded by the MPEG scheme. As shown in FIG. 2 , the reproduction data ENC is composed of a plurality of GOPs (Group of Pictures) that are ...
no. 2 example
[0144] The second embodiment relates to the tenth to fourteenth aspects of the present invention. The computer 2a corresponds to the inventive data processing device, and the reproducing device 4a corresponds to the reproducing device of the present invention. As shown in FIG. 1, a data processing system 1a has, for example, a computer 2a and a reproduction device 4a. In the present embodiment, the CPU 20a of the computer 2a controls the overall progress of decoding picture data at the reproduction device 4a. When the CPU 42a of the reproducing apparatus 4a receives the transfer completion notification from the computer 2a, it causes the decoders 34_1 to 34_3 to perform decoding of the GOP (picture data) specified by the transfer completion notification. For this reason, the CPU 42a does not require complicated management of GOPs stored in the input memory 32, or scheduling of decoding of GOPs, and can be realized by a processing circuit of low processing performance.
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