CN102497520B - Power supply control system of CI (Conditional Independence) card and CA (Conditional Access) card compatible system and power supply method thereof - Google Patents
Power supply control system of CI (Conditional Independence) card and CA (Conditional Access) card compatible system and power supply method thereof Download PDFInfo
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- CN102497520B CN102497520B CN 201110403357 CN201110403357A CN102497520B CN 102497520 B CN102497520 B CN 102497520B CN 201110403357 CN201110403357 CN 201110403357 CN 201110403357 A CN201110403357 A CN 201110403357A CN 102497520 B CN102497520 B CN 102497520B
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- 238000001514 detection method Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention relates to a digital television technology, solves the problem that a traditional system adopting a CI (Conditional Independence) card is taken as a main body for the design of a compatible system and cannot be simultaneously compatible with power input required by a CA (Conditional Access) card, and provides a power supply control system of a CI card and CA card compatible system and a power supply method thereof. A technical scheme disclosed by the invention is as follows: the power supply control system of the CI card and CA card compatible system comprises a control module, the CI card, an interface and a power output pin, wherein the control module is connected with the power output pin which is connected with the interface, and a power input pin of the CI card can be connected with the power output pin through the interface. The power supply control system is characterized by further comprising the CA card and a CA card seat, wherein the CA card can be connected with the power output pin through the CA card seat. The invention has the beneficial effects that the power output pins of the CA card and the CI card can be multiplexed, and the system and the method are suitable for the CI card and CA card compatible system.
Description
Technical field
The present invention relates to digital television techniques, particularly the compatible technique of CI card and CA card.
Background technology
in order to adapt to the different situation of CA system all over China, apparatus of digital television receiving has proposed the separation between machine and card scheme based on the CI interface, the CI scheme gives the PCMCIA physical interface and redefines pin, export and input control for data flow, carry out descrambling in kilocalorie (CI card), the shortcoming of doing like this is that the cost of kilocalorie is higher, the cost of kilocalorie has directly improved system cost, it is all a no small expense concerning radio and TV operator and consumer, seriously restricted the popularization of kilocalorie product, and system compatible kilocalorie and lesser calorie (CA card) simultaneously not now, it is the use that use that present neither one system can satisfy kilocalorie (CI card) can be satisfied again lesser calorie (CA card) simultaneously, use at present the system of kilocalorie all to comprise large card interface, master chip and pin, large card interface is used for being connected with kilocalorie, reach for a plurality of relevant pins that are connected with the kilocalorie pin and comprise a plurality of pins that do not use in pin, do not use pin not to be connected with the kilocalorie pin, and the relevant pins that is connected with the kilocalorie pin is connected with master chip, use the system of lesser calorie all to comprise master chip, little card interface and pin, basic identical with the kilocalorie connected mode, but pin definitions is different, and no matter use kilocalorie or its master chip of the system of lesser calorie is substantially all identical.
If be exactly that it adopts identical power pin input power if CI card and CA card compatibility wherein have a very important problem, the 3.3V power supply is inputted and the 5V power supply is inputted two kinds because the CI card mainly contains, but it can not require two kinds of power supply inputs at one time, and the CA card want the normal operation need 3.3V power supply and 5V power supply to input simultaneously, namely to need simultaneously two kinds of power supply inputs, if adopt the system of CI card to carry out the design of compatible system as body, the power supply of compatible CA calorie requirement input simultaneously.
Summary of the invention
The system that the objective of the invention is to overcome present employing CI card carries out the design of compatible system as body, the shortcoming of the power supply of compatible CA calorie requirement input simultaneously provides electric power supply control system and the method for supplying power to thereof of a kind of CI card and CA card compatible system.
The present invention solves its technical problem, the technical scheme that adopts is, the electric power supply control system of CI card and CA card compatible system, comprise master chip, CI card, interface and power supply output pin, described master chip is connected with the power supply output pin, and the power supply output pin is connected with interface, the power supply input pin of CI card can be connected with the power supply output pin by interface, it is characterized in that, also comprise CA card and CA deck, described CA card can be connected with the power supply output pin by the CA deck;
Described master chip is used for controlling power supply output pin output voltage, and judges the connected CI of being card or CA card;
Described interface is used for connecting CI card or CA deck;
Described power supply output pin is used for output dc voltage;
Described CA deck inputs to the CA card for two kinds of power supplys that the direct voltage with the output of power supply output pin is converted to the CA calorie requirement.
Concrete, described interface comprises CI card interface and CA deck interface, and described CI card interface CI card adapts, and described CA deck interface and CA deck adapt.
Further, described CA deck interface is connected with the CA deck, has the hole of inserting the CA card on described CA deck.
Concrete, described interface only has one, and interface and CI card adapt, and CA deck and interface adapt.
Further, described power supply output pin can be exported 3.3V direct voltage or 5V direct voltage.
Concrete, described CA card comprises 3.3V power supply input pin and the 5V power supply input pin of CA card, described CA deck comprises the step-down integrated circuit, the 3.3V power supply input pin of described CA card can be connected with the power supply output pin by the step-down integrated circuit in the CA deck, the 5V power supply input pin of CA card can be connected with the power supply output pin by the CA deck
The voltage transitions that described step-down integrated circuit is used for the output of power supply output pin is that the 3.3V power delivery is to the 3.3V power pins of CA card.
The method of supplying power to of the electric power supply control system of CI card and CA card compatible system is characterized in that, comprises the following steps:
Whether a. system's detection is at present connected is the CI card, if enter the b step, if not enter the c step;
B. judge the needed operating voltage of current C I card, if 5V controls power supply output pin output 5V direct voltage, if 3.3V controls power supply output pin output 3.3V direct voltage;
C. master chip is controlled power supply output pin output 5V direct voltage, and the 5V direct voltage is by the backward CA card output of CA deck conversion 3.3V direct voltage, and the power supply output pin is simultaneously to CA card output 5V direct voltage.
Further, further comprising the steps of:
If d. be connected with this system without card this moment, master chip is controlled power supply output pin output 3.3V direct voltage.
The invention has the beneficial effects as follows, electric power supply control system and method for supplying power to thereof by above-mentioned CI card and CA card compatible system, owing to being two kinds of power supplys input of CA calorie requirement by the CA deck with the voltage transitions of output, make the power supply output pin of CA card and CI card can be multiplexing.
Description of drawings
Fig. 1 is the system block diagram of the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
the electric power supply control system of CI card of the present invention and CA card compatible system is by master chip, the CI card, interface, the power supply output pin, CA card and CA deck form, wherein, master chip is connected with the power supply output pin, the power supply output pin is connected with interface, the power supply input pin of CI card can be connected with the power supply output pin by interface, the CA card can be connected with the power supply output pin by the CA deck, here, master chip is used for controlling power supply output pin output voltage, and judge the connected CI of being card or CA card, interface is used for connecting CI card or CA deck, the power supply output pin is used for output dc voltage, the CA deck inputs to the CA card for two kinds of power supplys that the direct voltage with the output of power supply output pin is converted to the CA calorie requirement.the method of supplying power to of the electric power supply control system of CI card of the present invention and CA card compatible system is: whether at first system's detection is at present connected is the CI card, if continue the needed operating voltage of judgement current C I card, if 5V controls power supply output pin output 5V direct voltage, if 3.3V controls power supply output pin output 3.3V direct voltage, if not the CI card is the CA card, master chip is controlled power supply output pin output 5V direct voltage, the 5V direct voltage is by the backward CA card output of CA deck conversion 3.3V direct voltage, and the power supply output pin is simultaneously to CA card output 5V direct voltage.
Embodiment
This routine power supply output pin can be exported 3.3V direct voltage or 5V direct voltage, its system block diagram such as Fig. 1.
at first by master chip, the CI card, interface, the power supply output pin, CA card and CA deck form the electric power supply control system of CI card and CA card compatible system, wherein, master chip is connected with the power supply output pin, the power supply output pin is connected with interface, the power supply input pin of CI card can be connected with the power supply output pin by interface, the CA card can be connected with the power supply output pin by the CA deck, here, master chip is used for controlling power supply output pin output voltage, and judge the connected CI of being card or CA card, interface is used for connecting CI card or CA deck, interface can comprise CI card interface and CA deck interface, this CI card interface CI card adapts, this CA deck interface can adapt with the CA deck, the convenience that also can only provide the CA deck to be connected with the power supply output pin, be that CA deck interface can be connected with the CA deck, has the hole of inserting the CA card on the CA deck, interface also can only have one, need this interface and CI card to adapt, CA deck and interface adapt, the power supply output pin is used for output dc voltage, this direct voltage is 3.3V direct voltage or 5V direct voltage, the CA deck inputs to the CA card for two kinds of power supplys that the direct voltage with the output of power supply output pin is converted to the CA calorie requirement, its concrete mode is: the 3.3V power supply input pin and the 5V power supply input pin that comprise the CA card due to the CA card, so include the step-down integrated circuit in the CA deck, wherein the 3.3V power supply input pin of CA card can be connected with the power supply output pin by the step-down integrated circuit in the CA deck, the 5V power supply input pin of CA card can be connected with the power supply output pin by the CA deck, the voltage transitions that this step-down integrated circuit is used for the output of power supply output pin is that the 3.3V power delivery is to the 3.3V power pins of CA card.
during use, whether at first system's detection is at present connected is the CI card, if continue the needed operating voltage of judgement current C I card, if 5V controls power supply output pin output 5V direct voltage, if 3.3V controls power supply output pin output 3.3V direct voltage, if not the CI card is the CA card, master chip is controlled power supply output pin output 5V direct voltage, during due to connection CA card, native system need to pass through the CA deck, and the CA deck can be converted to the 3.3V power delivery to the 3.3V power pins of CA card with the 5V direct voltage of power supply output pin output, and the 5V power pins of CA card is connected with the power supply output pin by the CA deck, power supply output pin output this moment 5V direct voltage, the 3.3V power pins that is the CA card is inputted the 3.3V direct voltage at this moment, the 5V power pins of CA card is inputted the 5V direct voltage at this moment, satisfy the operating voltage of CA card, if and without card when being connected with this system, master chip control power supply output pin is exported the 3.3V direct voltage.
Claims (8)
1.CI the electric power supply control system of card and CA card compatible system, comprise control module, CI card, interface and power supply output pin, described control module is connected with the power supply output pin, the power supply output pin is connected with interface, the power supply input pin of CI card can be connected with the power supply output pin by interface, it is characterized in that, also comprise CA card and CA deck, described CA card can be connected with the power supply output pin by the CA deck;
Described control module is used for controlling power supply output pin output voltage, and judges the connected CI of being card or CA card;
Described interface is used for connecting CI card or CA deck;
Described power supply output pin is used for output dc voltage;
Described CA deck inputs to the CA card for two kinds of power supplys that the direct voltage with the output of power supply output pin is converted to the CA calorie requirement.
2. the electric power supply control system of CI card and CA card compatible system according to claim 1, is characterized in that, described interface comprises CI card interface and CA deck interface, and described CI card interface CI card adapts, and described CA deck interface and CA deck adapt.
3. the electric power supply control system of CI card and CA card compatible system according to claim 2, is characterized in that, described CA deck interface is connected with the CA deck, has the hole of inserting the CA card on described CA deck.
4. the electric power supply control system of CI card and CA card compatible system according to claim 1, is characterized in that, described interface only has one, and interface and CI card adapt, and CA deck and interface adapt.
5. the electric power supply control system of CI card and CA card compatible system according to claim 1, is characterized in that, described power supply output pin can be exported 3.3V direct voltage or 5V direct voltage.
6. the electric power supply control system of according to claim 1 and 2 or 3 or 4 or 5 described CI cards and CA card compatible system, it is characterized in that, described CA card comprises 3.3V power supply input pin and the 5V power supply input pin of CA card, described CA deck comprises the step-down integrated circuit, the 3.3V power supply input pin of described CA card can be connected with the power supply output pin by the step-down integrated circuit in the CA deck, the 5V power supply input pin of CA card can be connected with the power supply output pin by the CA deck
The voltage transitions that described step-down integrated circuit is used for the output of power supply output pin is that the 3.3V power delivery is to the 3.3V power pins of CA card.
7.CI the method for supplying power to of the electric power supply control system of card and CA card compatible system is characterized in that, comprises the following steps:
Whether a. system's detection is at present connected is the CI card, if enter the b step, if not enter the c step;
B. judge the needed operating voltage of current C I card, if 5V controls power supply output pin output 5V direct voltage, if 3.3V controls power supply output pin output 3.3V direct voltage;
C. control module is controlled power supply output pin output 5V direct voltage, and the 5V direct voltage is by the backward CA card output of CA deck conversion 3.3V direct voltage, and the power supply output pin is simultaneously to CA card output 5V direct voltage.
8. the method for supplying power to of the electric power supply control system of CI card and CA card compatible system according to claim 1, is characterized in that, and is further comprising the steps of:
If d. be connected with this system without card this moment, control module is controlled power supply output pin output 3.3V direct voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110403357 CN102497520B (en) | 2011-12-07 | 2011-12-07 | Power supply control system of CI (Conditional Independence) card and CA (Conditional Access) card compatible system and power supply method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110403357 CN102497520B (en) | 2011-12-07 | 2011-12-07 | Power supply control system of CI (Conditional Independence) card and CA (Conditional Access) card compatible system and power supply method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102497520A CN102497520A (en) | 2012-06-13 |
| CN102497520B true CN102497520B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110403357 Expired - Fee Related CN102497520B (en) | 2011-12-07 | 2011-12-07 | Power supply control system of CI (Conditional Independence) card and CA (Conditional Access) card compatible system and power supply method thereof |
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| Country | Link |
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| CN (1) | CN102497520B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442273A (en) * | 2013-08-13 | 2013-12-11 | 四川长虹电器股份有限公司 | CI card and CA card compatible method based on digital television set-top box and all-in-one machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0655692A2 (en) * | 1993-11-26 | 1995-05-31 | Nokia Mobile Phones Ltd. | A multiple element interface |
| CN2793973Y (en) * | 2005-03-28 | 2006-07-05 | 上海莫仕连接器有限公司 | Electronic card connector |
| CN1853411A (en) * | 2003-09-19 | 2006-10-25 | 松下电器产业株式会社 | Digital television receiver module and digital television receiver using the same |
| CN1904913A (en) * | 2006-07-28 | 2007-01-31 | 凤凰微电子（中国）有限公司 | Smart card for implementing inside power management and power managing method |
| CN101099382A (en) * | 2004-11-12 | 2008-01-02 | 松下电器产业株式会社 | Digital television receiver circuit module |
| CN201518528U (en) * | 2009-10-20 | 2010-06-30 | 福建新大陆通信科技有限公司 | Automatic test device of digital television set-top box CA clamping plate |
-
2011
- 2011-12-07 CN CN 201110403357 patent/CN102497520B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0655692A2 (en) * | 1993-11-26 | 1995-05-31 | Nokia Mobile Phones Ltd. | A multiple element interface |
| CN1853411A (en) * | 2003-09-19 | 2006-10-25 | 松下电器产业株式会社 | Digital television receiver module and digital television receiver using the same |
| CN101099382A (en) * | 2004-11-12 | 2008-01-02 | 松下电器产业株式会社 | Digital television receiver circuit module |
| CN2793973Y (en) * | 2005-03-28 | 2006-07-05 | 上海莫仕连接器有限公司 | Electronic card connector |
| CN1904913A (en) * | 2006-07-28 | 2007-01-31 | 凤凰微电子（中国）有限公司 | Smart card for implementing inside power management and power managing method |
| CN201518528U (en) * | 2009-10-20 | 2010-06-30 | 福建新大陆通信科技有限公司 | Automatic test device of digital television set-top box CA clamping plate |
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| CN102497520A (en) | 2012-06-13 |
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