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Digital broadcasting receiver
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A technology for digital broadcasting and receiving devices, applied in the field of digital broadcasting receiving devices, can solve the problems of inability to record video and the like
Inactive Publication Date: 2004-08-11
PANASONIC CORP
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Problems solved by technology
[0006] Like this, in the existing digital broadcast receiving device, there is such a problem: when not allowing the external recording device to copy the received image signal, it cannot be recorded into the VTR etc. Watch the show when it airs
Method used
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Embodiment 1
[0029] Using Figure 1, figure 2 , FIG. 3 and FIG. 4 to illustrate Embodiment 1 corresponding to Claim 1 and Claim 2 of the present invention.
[0030] Fig. 1 shows the block diagram of the digital broadcast receiving device of embodiment 1 of the present invention, in Fig. 1, 11 is a digital broadcast receiving device, 12 is a tuner, 13 is a transport decoder, 14 is a switching switch, 15 is an MPEG decoder 16 is an NTSCencoder, 17 is a scrambler, 18 is a descrambler, 19 is a record pointer control unit, 20 is a read (replay) pointer control unit, 21 is a simultaneous delete pointer control unit, and 22 is a hard disk Interface, 23 is a hard disk, 26 is an input operation part, 27 is an output control part.
[0031] Next, the operation of the digital broadcast receiving apparatus of the first embodiment configured in this way will be described.
[0032] First, the tuner 12 is connected to an antenna, and the digital broadcast received by the tuner 12 is digitally demodulat...
Embodiment 2
[0055] Use below figure 2 , Figure 3, Figure 4, Figure 5 Embodiment 2 corresponding to claim 3 and claim 4 of the present invention will be described with reference to FIG. 6 .
[0056] Figure 5 A block diagram showing a digital broadcast receiving apparatus according to Embodiment 2 of the present invention, in Figure 5 Among them, 51 is a digital broadcast receiving device, 52 is a tuner, 53 is a transport decoder, 54 is a switch, 55 is an MPEG decoder, 56 is an NTSCencoder, 57 is a scrambler, 58 is a descrambler, 59 is a storage pointer control section, 60 is a read pointer control section, 61 is a simultaneous delete pointer control section, 62 is a hard disk interface, 63 is a hard disk drive, 64 is a copy mark, and 65 is an OSD (On Screen Demand) picture synthesis section, 66 is an input operation part, 67 is an output control part, 68 is a message screen generation part, and 69 is a switching switch.
[0057] Next, the operation of the digital broadcast receivi...
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Abstract
A digital broadcastingreceiver includes a tuner unit for receiving digital broadcasting in formation, an information storage unit for storing the digital broadcasting information together with copyright information, and a decoder unit for decoding the digital broadcasting information into an output signal in a form to be displayed. When a copy-disallowance signal is detected during an operation for reading and reproducing digital broadcasting information from the information storage unit, by employing a reproducing pointer, the digital broadcastingreceiver simultaneously erases the digital broadcasting information by employing a simultaneous erasing pointer. On the other hand, when a copy-disallowance signal is detected while digital broadcasting information is being received and stored in the information storage unit, the digital broadcasting receiver inhibits outputting the received digital broadcasting information as an output signal in a form to be displayed through the decoder unit. Thereby, the digital broadcasting receiver can satisfy the condition of disallowing the copying of copyright protected digital broadcasting by realizing the copyright protection for digital broadcasting information, and can shift a viewing time of the digital broadcasting information to a later time.
Description
technical field [0001] The present invention relates to a digital broadcast receiving device, especially a device characterized in preventing illegal duplication under the copyright protection of digital broadcasting. Background technique [0002] In the prior art, when a digital broadcast receiving apparatus displays a received image signal, copy protection is provided for the displayed output image signal in the case that the received image signal is not allowed to be copied. [0003] Figure 7 Shows the configuration of a conventional digital broadcast receiver. exist Figure 7 Among them, 1 is a digital broadcast receiving device, 2 is a tuner, 3 is a transport decoder, 4 is a switch, 5 is an MPEG decoder, 6 is an NTSCencoder, 7 is a digital interface, and 8 is copy flag information. [0004] The operation of the digital broadcast receiving apparatus configured in this way will be described below. [0005] First, the tuner 2 is connected to an antenna, and the digital...
Claims
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Application Information
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