Method and apparatus for receiving digital broadcasts
3 Assignments
0 Petitions
Accused Products
Abstract
In a digital broadcast receiving apparatus, digital broadcast signals provided by a digital broadcast method are supplied to various types of external units and are effectively utilized. In the above apparatus, a descrambler descrambles a transport stream output from a front end unit and supplies it to a digital interface and a demultiplexer. The demultiplexer extracts from the transport stream a compressed video signal and a compressed audio signal of a program specified by a user, and supplies the extracted signals to an MPEG decoder. The MPEG decoder decompresses the supplied video signal and the audio signal and supplies them to the digital interface, an NTSC encoder, and an audio signal D/A converter. The digital interface supplies either of the transport stream or the decompressed data to a digital external unit under the control of the controller.
34 Citations
27 Claims
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1-11. -11. (canceled)
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12. A digital broadcast receiving apparatus for receiving broadcast program signals, comprising:
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receiving means for receiving the broadcast program signals in which a plurality of programs are compressed and multiplexed, and for outputting a transport stream;
broadcast program extraction means for extracting a program selected by a user from the transport stream;
decompression means for decompressing the compressed program extracted by the broadcast program extraction means and for outputting decompressed data;
digital interface means for receiving the compressed program extracted by the broadcast program extraction means and the decompressed data from the decompression means, and for outputting each of the compressed program and the decompressed data to a digital external unit; and
control means for controlling, based on an instruction from the user, the selection of an output from the digital interface means to the digital external unit, the output being selected from the compressed program extracted by the broadcast program extraction means and the decompressed data from the decompression means. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A method for receiving broadcast program signals, comprising the steps of:
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receiving said broadcast program signals in which a plurality of programs are compressed and multiplexed, and outputting a transport stream;
extracting a compressed program selected by a user from the transport stream;
decompressing the compressed program extracted during the step of extracting and outputting decompressed data;
receiving the compressed program extracted during the step of extracting and the decompressed data decompressed during the step of decompressing, and outputting each of the compressed program and the decompressed data to a digital external unit; and
controlling, based on an instruction from the user, the selection of an output to the digital external unit, said output being selected from the compressed program extracted during the step of extracting and the decompressed data decompressed during the step of decompressing. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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Specification