CN201886783U - Condition receiving card - Google Patents
Condition receiving card Download PDFInfo
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- CN201886783U CN201886783U CN 201020663139 CN201020663139U CN201886783U CN 201886783 U CN201886783 U CN 201886783U CN 201020663139 CN201020663139 CN 201020663139 CN 201020663139 U CN201020663139 U CN 201020663139U CN 201886783 U CN201886783 U CN 201886783U
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- module
- storage control
- receiving card
- condition receiving
- control module
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Abstract
The utility model relates to a condition receiving card which comprises a CA core module, a storage control module and storage equipment, wherein the storage control module is connected with the CA core module, and the storage equipment is connected with the storage control module. Based on the condition receiving cards provided in the prior art, a storage management module and the storage equipment are added to the condition receiving card provided by the utility model and can be used for carrying out storage and playback control on the original transport streams sent from a host to the condition receiving card so that Time-shift and PVR (Personal Video Recorder) functions are realized.
Description
Technical field
The utility model relates to the digital television techniques field, specifically is condition receiving card
Background technology
At present in digital TV field, Time-Shift (instant time shift) and PVR (Personal Video Recorder, the personal video recording machine) etc. to transport stream (Transport Stream, be called for short TS stream) store with the function of playback controls very common, but this function is finished in set-top box mostly, and go up almost also not having of this function of realization at condition receiving card (Conditional Access Module is called for short CAM).On the current market, the condition receiving card that provides substantially only possesses the CA descrambling module, function is very single, for the main frame that does not have the Time-Shift/PVR function (set-top box or the all-in-one of band CI interface), just can't store and playback controls TS stream, can not satisfy numerous clients' demand.This suitable utility model is that to old terms receiving card function replenishes, and has enlarged the range of application of condition receiving card.
The utility model content
Fundamental purpose of the present utility model provides a kind of condition receiving card, to realize Time-Shift (instant time shift) and PVR (Personal Video Recorder, personal video record) the TS stream that receives is stored and playback function.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of condition receiving card, it comprises: the storage control module and the memory device that is connected described storage control module of CA nucleus module, the described CA nucleus module of connection.
Preferably, described condition receiving card also comprises: the UI control module that is connected with described storage control module.
Preferably, described storage control module comprises: storage control nucleus module, Bypass Control switch, PID filtrator and selection gauge tap, wherein, described Bypass Control switch connects described PID filtrator, described PID filtrator connects described storage control nucleus module, and described storage control nucleus module connects described CA nucleus module by described selection gauge tap.
Preferably, described memory device comprises and is built in the built-in memory device on the described substrate and is connected on external storage on the described storage control nucleus module outward.
Implement the technical solution of the utility model, has following beneficial effect: the condition receiving card that the utility model provides, on the condition receiving card that prior art provides, increase memory management module and memory device, realization is stored and playback controls the original TS stream that main frame is sent to condition receiving card, thereby realizes Time-shift and PVR function.
Description of drawings
The structural representation of the condition receiving card that Fig. 1 provides for the utility model embodiment;
The structural representation that Fig. 2 uses for the condition receiving card that the utility model embodiment provides;
The concrete structure principle chart of the condition receiving card that Fig. 3 provides for the utility model embodiment.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment provides a kind of condition receiving card, as shown in Figure 1, this condition receiving card 100 comprises: comprising: the storage control module 110 and the memory device 130 that is connected described storage control module 110 of CA nucleus module 120, the described CA nucleus module 120 of connection.Described CA nucleus module 120 connects main frame by storage control module 110, this CA nucleus module 120 belongs to general CA descrambling module, the all functions that possessed general conditions receiving card, can be integrated into independent CPUs, described main frame is the set-top box or the digital TV integrated machine of band CI interface, described CI physical interface is a pcmcia interface, and the communication protocol of described condition receiving card and main frame is CI and extension standards agreement thereof.Storage control module 110 can be integrated on the condition receiving card master chip, also can be separately by outside companion chip (as: FPGA (field programmable gate array), DSP (digital processing unit) etc.), transport stream (Transport Stream, TS stream) enter before the CA nucleus module 120, earlier through storage control module 110, by storage of storage control module 110 control transmission stream and playback, the transport stream of needs storage and playback can be deposited in the described memory device 130 and carry out buffer memory.
In the additional embodiments, as shown in Figure 2, further described condition receiving card also comprises with this storage control module 110 and is arranged at UI control module 140 on the same substrate.This main frame comprises the DVB application and the decoder module that are used to receive TS stream, be used for the figure output module of figure output and be used to receive the human-computer interaction module of user instruction input, TS stream sends CAM (the TS stream of this moment may be transparent flow, also may be the stream of encrypting) by the CI interface to from main frame.CAM (condition receiving card) through memory management module 110, carries out performance recording earlier if desired after receiving TS stream, then TS stream is stored earlier, and according to user's input instruction, carried out playback; If do not need to record, then directly be sent to CA nucleus module 120 and be for further processing.Whether the user selects to record and the mode of playback in above-mentioned, is that the human-computer interaction module by main frame carries out.After human-computer interaction module receives the user instruction input, these instructions are sent to UI (User Interface, the user interface) control module 140 that CAM holds by the CI interface, carry out the mutual control in inside by UI control module 140 and memory management module 110.
In the various embodiments described above, as shown in Figure 3, described storage control module 110 comprises: storage control nucleus module 111, Bypass Control switch 113, PID (Packet Identifier, the identification code transmission package) filtrator 112 and selection gauge tap 114, wherein, described Bypass Control switch 113 connects described PID filtrator 112, described PID filtrator 112 connects described storage control nucleus module 111, and described storage control nucleus module 111 connects described CA nucleus module 120 by described selection gauge tap 114.Bypass Control switch 113 is used to control the switch of whether storing; Select gauge tap 114 to be used for controls playing and record the switch that stream still flows in real time; PID filtrator 112 is used for control and at which program records; The functional module that storage control nucleus module 111 is used to manage storage of TS stream and playback.
Wherein, described memory device 130 comprises built-in memory device 131 that is built on the receiving card master chip and the outer external storage 132 that is connected on the described storage control nucleus module that is independent of described receiving card master chip.
When program was recorded: the TS stream of coming from main frame passed through Bypass Control switch 113 through PID filtrators 112, exported user-selected TS stream, passed through memory buffer then, was sent to memory device 131,132 afterwards again and stored.When program was carried out playback, TS stream was read from memory device 131,132, through memory buffer, is sent to CA nucleus module 120 then and handles.Preferably, condition receiving card can be selected two kinds of storage facilitiess---and built-in RAM storer (as: SDRAM (synchronous DRAM) etc.) adds the mode of external storage card (as: SD card (safe digital card) etc.), when can or recording in real-time play, built-in RAM, make user's playback at any time delay the content in district as buffer zone.External storage card can enlarge the storage space of storer, postpones the time of playback; Realize the PVR function, memory device the 131, the 132nd in the present embodiment, indispensable equipment.
When the utility model did not start TS stream buffer-stored, TS stream was selected gauge tap 114 by the CI interface through Bypass Control switch 113 flow directions, directly enters CA nucleus module 120.The function of this situation and general conditions receiving card is consistent.
When the utility model is carried out the Time-shift function, TS stream is by the CI interface, flow to PID filtrator 112 through Bypass Control switch 113, PID filtrator 112 will be according to the setting of program, the TS bag of the PID that current program is associated (perhaps with whole TS bags) outputs to storage control module 110, and storage control module 110 is saved in memory device 130 to these TS bags.Simultaneously, storage control module 110 is according to the selection of obtaining the user from UI control module 140, and the TS bag of memory device 130 being formulated the position outputs to CA nucleus module 120, thereby reaches the purpose of Time-shift.
When the utility model is carried out the PVR function, start when recording, UI control module 140 obtains the user instruction input from main frame, notice storage control module 110, storage control module stores target P ID into memory device 130 according to user's demand, and the relevant recorded information of record.When recording, allow TS stream also to flow to and select gauge tap 114, and be input to CA nucleus module 120 from Bypass Control switch 113, making the user limit record can play on the limit.During playback, UI control module 140 obtains user's play instruction from main frame, notifies storage control module 110 then, storage control module is according to user's requirement, relevant TS stream with memory device 130 storages outputs to CA nucleus module 120, thereby realizes the purpose of playback.
Below only be preferred embodiment of the present utility model,, all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model not in order to restriction the utility model.
Claims (4)
1. a condition receiving card is characterized in that, comprising: the storage control module and the memory device that is connected described storage control module of CA nucleus module, the described CA nucleus module of connection.
2. condition receiving card according to claim 1 is characterized in that, also comprises: the UI control module that is connected with described storage control module.
3. as condition receiving card as described in the claim 2, it is characterized in that, described storage control module comprises: storage control nucleus module, Bypass Control switch, PID filtrator and selection gauge tap, wherein, described Bypass Control switch connects described PID filtrator, described PID filtrator connects described storage control nucleus module, and described storage control nucleus module connects described CA nucleus module by described selection gauge tap.
4. as condition receiving card as described in the claim 3, it is characterized in that described memory device comprises and is built in the built-in memory device on the described substrate and is connected on external storage on the described storage control nucleus module outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020663139 CN201886783U (en) | 2010-12-15 | 2010-12-15 | Condition receiving card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020663139 CN201886783U (en) | 2010-12-15 | 2010-12-15 | Condition receiving card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886783U true CN201886783U (en) | 2011-06-29 |
Family
ID=44184331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020663139 Expired - Fee Related CN201886783U (en) | 2010-12-15 | 2010-12-15 | Condition receiving card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886783U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307317A (en) * | 2011-08-10 | 2012-01-04 | 深圳国微技术有限公司 | System for implementing data value-added service (VAS) by CAM (conditional access module) card |
| CN106375806A (en) * | 2016-08-31 | 2017-02-01 | 深圳国微技术有限公司 | User interface update method and system based on conditional access module, and frontend device |
-
2010
- 2010-12-15 CN CN 201020663139 patent/CN201886783U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307317A (en) * | 2011-08-10 | 2012-01-04 | 深圳国微技术有限公司 | System for implementing data value-added service (VAS) by CAM (conditional access module) card |
| CN106375806A (en) * | 2016-08-31 | 2017-02-01 | 深圳国微技术有限公司 | User interface update method and system based on conditional access module, and frontend device |
| CN106375806B (en) * | 2016-08-31 | 2019-05-03 | 深圳国微技术有限公司 | A kind of user interface updating method, system and fore device based on condition receiving card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20191215 |