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Function module card, host device, and control method thereof

A technology of functional modules and hosts, applied in mechanical equipment, color TV parts, TV system parts, etc., can solve problems such as inability to protect digital content copyrights

Inactive Publication Date: 2006-06-28
GK BRIDGE 1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the second problem that arises is that the copyright of the digital content transmitted by the broadcasting station cannot be protected.

Method used

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  • Function module card, host device, and control method thereof
  • Function module card, host device, and control method thereof
  • Function module card, host device, and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0052] use Figure 1 ~ Figure 3 , Describe the function module card, host and their control methods of the first embodiment of the present invention.

[0053] figure 1 It is a diagram showing the structure of a digital broadcast receiving device having a functional module card and a host according to Embodiment 1 of the present invention. in figure 1 Among them, 110 is the function module card, and 160 is the host. The function module card 110 receives terrestrial digital broadcast signals, and transmits the transport stream (hereinafter referred to as "TS") of the broadcast signal (including video signal and audio signal) of the channel selected by the tuner 112 to the host 160. The host 160 decodes and descrambles the input TS, and outputs video signals and audio signals of terrestrial digital broadcasting.

[0054] The function module card 110 has an antenna 150, a tuning unit 111, a card control unit 114, and a memory 118. The tuning unit 111 has a tuner 112 and a demodulati...

Embodiment approach 2

[0088] use image 3 , Figure 4 with Figure 5 , Describe the function module card, host and their control methods of the second embodiment of the present invention.

[0089] Figure 4 It is a diagram showing the structure of a digital broadcast receiving device having a functional module card and a host computer according to Embodiment 2 of the present invention. in Figure 4 Among them, 410 is the function module card, and 460 is the host. The functional module card 410 of the second embodiment is the functional module card 110 of the first embodiment ( figure 1 The card control unit 114 and the communication unit 115 of) are replaced with the card control unit 414 and the communication unit 415, and a selector 420 is added. The selector 420 has a switch 421 and a switch 422. The host 460 of the second embodiment is the host 160 of the first embodiment ( figure 1 The host control unit 164 of) is replaced by the host control unit 464, and a selector 470 is added. The selector 4...

Embodiment approach 3

[0106] When connecting the functional module card 110 of the first embodiment and the functional module card 410 of the second embodiment to a host that cannot perform TS transfer in the second data transfer mode, or does not allow TS transfer in the second data transfer mode If the host is used in combination, users cannot watch terrestrial digital broadcasts. The function module card of Embodiment 3 solves this problem. use image 3 , Figure 5 with Figure 6 A description will be given of the function module card, the host computer, and their control method according to the third embodiment of the present invention.

[0107] Figure 6 It is a diagram showing the structure of a digital broadcast receiving device having a functional module card and a host computer according to Embodiment 3 of the present invention. in Figure 6 Among them, 610 is the function module card, and 460 is the host. Figure 6 The digital broadcast receiving device shown will Figure 4 The functional mod...

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Abstract

The present invention provides a digital broadcast receiving device capable of installing a function module card having a digital broadcast receiving function on a host computer as an option unit. The function module card has: a card control unit; and a tuner unit, which inputs digital broadcast signals, generates TS and TS clock for TS transfer, and directly transfers it to the decoder and descrambler of the host through the bus. The host has a host control unit for communicating with the card control unit, an input / output unit, and a decoder and descrambler. Data transfer between the card control unit and the host control unit is performed through the master / slave data transfer method in which the host control unit is in charge and the clock of the host control unit is used, and the TS clock is used for the tuner unit and decoder and descrambling Data transfer between frequency converters.

Description

Technical field [0001] The invention relates to a function module card, a host and their control method. Background technique [0002] In recent years, terrestrial wave digital broadcasting has started. In response to this, various digital broadcast receiving devices and digital broadcast receiving methods have been proposed (for example, refer to Japanese Patent Laid-Open Nos. 2002-300128, 2002-218341, 2002-135808, and 2001-197025 Bulletin No. and Patent No. 3389943 Bulletin). [0003] Among digital broadcast receiving devices, digital broadcast receiving function modules are relatively expensive. Therefore, generally speaking, a device that can install a digital broadcast receiving function module as an optional unit and is an inexpensive device as the main body of the device is more attractive to users than an expensive device that has a built-in digital broadcast receiving function module. The present invention realizes a functional module card with digital broadcast receivin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/56A61B17/00A61B17/04A61B17/06A61B17/064A61B17/70A61B17/86A61B17/88A61F2/00A61F2/02A61F2/28A61F2/30A61F2/44A61F2/46H04N5/44H04N7/173H04N21/426H04N21/4363
CPCA61F2210/0019H04N21/4183H04N21/426H04N21/434G06F1/00
Inventor 中村清治加藤勇雄足立达也岩田和也
Owner GK BRIDGE 1
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