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Complex digit broadcasting method able to fully obtained complex digit broadcasting data

A digital broadcasting and digital data technology, applied in broadcasting, broadcasting devices, broadcasting-related systems, etc., can solve problems such as non-disclosure, and achieve the effect of improving broadcasting efficiency

Inactive Publication Date: 2002-12-04
RENESAS ELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known technique does not disclose at all to obtain data by retransmitting lost data if no signal is input to the demultiplexer or an illegal signal is input to the demultiplexer

Method used

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  • Complex digit broadcasting method able to fully obtained complex digit broadcasting data
  • Complex digit broadcasting method able to fully obtained complex digit broadcasting data
  • Complex digit broadcasting method able to fully obtained complex digit broadcasting data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] An embodiment of the present invention will be described below with reference to the drawings.

[0053] An embodiment of the multiplexed digital broadcasting system according to the present invention includes a receiving terminal together with the broadcasting station. Its receiving terminal 10 has a tuner and a digital demodulation error corrector. like figure 2 As shown, the tuner 1 receives broadcast waves sent from broadcasting stations, broadcasting satellites and the like according to selected desired frequencies. The broadcast data output from the tuner 1 is input to a digital demodulation error corrector 2, and if error correction is possible, error correction is performed simultaneously with demodulation, and the digital error corrector demodulates digital data 3 thereof.

[0054] The input switch 4 is connected with the digital demodulation error corrector 2, and the input switch 4 switches between the digital data 3 received from the digital demodulation e...

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Abstract

A multiplexing digital broadcasting system includes: a receiving terminal (10); and a broadcasting station (25). The receiving terminal (10) includes: a receiving side recording device (18) for demodulating selected explanatory digital data from the multiplexed digital data (3) transmitted from the broadcasting station (25) for recording; a receiving side meter (23) , recording the position in the data string corresponding to the data unit describing the digital data when the demodulation ends due to failure; the communication device (22), transmitting the position in the data string to the broadcasting station (25), wherein the broadcasting station (25 ) includes: a broadcast station side recording device (32) for recording raw data corresponding to the multiplexed digital data (3); a supplementary data transmitting device (33) for extracting from the raw data and in the data string The position corresponds to the description digital data and transmits it to the receiving terminal (10).

Description

technical field [0001] The present invention relates to a multiplexing digital broadcasting method. In particular, the present invention relates to a multiplexed digital broadcasting method for broadcasting or rebroadcasting data other than original broadcast program data, such as data after demodulation failure. Background technique [0002] In digital broadcasting, the importance related to broadcast data recording is high. A digital broadcast receiver for receiving digital broadcast data includes recording / playback means. Such a digital broadcast receiver is known from Japanese laid-open patent application (JP-A-Hei 9-238292). Such as figure 1 As shown, in such a digital broadcast receiver, when only a specific program is selected from a plurality of digital broadcast programs and recorded, if the user's selection signal 101 is input from the input device 102 by the user's operation, and the If a program is selected in the indicated program menu, then the system contr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/92H04H20/00H04H20/28H04H60/12H04J3/00H04N7/16H04N19/00H04N19/65H04N19/70H04N19/89H04N21/239H04N21/258H04N21/4425
CPCH04H60/11H04H2201/33
Inventor 二俣秀治
Owner RENESAS ELECTRONICS CORP
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