CN103986950A - Descrambling mode control method, device and equipment - Google Patents

Descrambling mode control method, device and equipment Download PDF

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Publication number
CN103986950A
CN103986950A CN201410197963.5A CN201410197963A CN103986950A CN 103986950 A CN103986950 A CN 103986950A CN 201410197963 A CN201410197963 A CN 201410197963A CN 103986950 A CN103986950 A CN 103986950A
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China
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digital television
descrambling
television signal
module
priority
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CN201410197963.5A
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Chinese (zh)
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CN103986950B (en
Inventor
汪桂兰
李现伟
张明远
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青岛海信电器股份有限公司
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Abstract

The invention discloses a descrambling mode control method, device and equipment. The method comprises the steps that digital television signal descrambling modules are detected according to the plugging state of a slot of each digital television signal descrambling module, and a digital television descrambling mode is set to correspond to the detected digital television signal descrambling module with the highest priority. According to the descrambling mode control method, device and equipment, the implementation scheme of selecting the digital television signal descrambling module with the highest priority from the detected two or more digital television signal descrambling modules is provided, and descrambling is carried out through the digital television descrambling mode corresponding to the selected digital television signal descrambling module. Thus, according to the technical scheme, one set of equipment can be compatible with digital television descrambling modes of different types of cards.

Description

A kind of control method, device and equipment of descrambling pattern

Technical field

The present invention relates to digital television techniques field, relate in particular to a kind of control method, device and equipment of descrambling pattern.

Background technology

What Digital Television (or digital TV integrated machine) received is the digital signal of compression.Need to pass through descrambling, the digital signal of compression is converted to the television content that Digital Television can be play.

Mostly adopt at present Conditional Access of Digital Television (Conditional Access Module, CAM) card descrambling pattern, claim again kilocalorie scheme, the scheme that CAM card and smart card are used in conjunction with.

CAM card is the personality card for digital television signal deciphering and conversion with smart card slot, claims to look again close card, kilocalorie.CAM card and smart card (claiming again lesser calorie) are used in conjunction with, and the digital signal of compression can be converted to television content.Concrete, smart card inserts the smart card slot of CAM card, and CAM card inserts the equipment (for example digital TV integrated machine) with common interface (Common Interface is called for short CI) interface.

While adopting kilocalorie scheme, there are the following problems:

On the one hand, zapping This move needs Digital Television and lesser calorie to communicate.In kilocalorie scheme, Digital Television can not with lesser calorie direct communication, need to be stuck in greatly forward signal between Digital Television and lesser calorie and realize zapping, therefore zapping speed is slow.

On the other hand, in kilocalorie scheme, by kilocalorie complete independently descrambling, but its descrambling speed is relatively slow.

Another aspect, Digital Television or Set Top Box need to obtain lesser calorie card number information, and then judge that whether lesser calorie card number is legal, if legal, could authorize business such as obtaining such as program request.In kilocalorie scheme, need to be stuck in greatly forward signal between Digital Television (Set Top Box) and lesser calorie, obtain lesser calorie card number, operator's informaiton and version information by kilocalorie from lesser calorie, then these information are sent to Digital Television or Set Top Box.Visible, the speed of obtaining these information is also slower.

For the problems referred to above of avoiding kilocalorie scheme to exist, also release successively smart card descrambling pattern, claim again lesser calorie scheme, use separately the scheme of smart card.

Smart card descrambling pattern, inserts the equipment (for example digital TV integrated machine) with CA interface by smart card, realizes digital television signal deciphering and conversion by smart card, and the digital signal of compression is converted to television content.

Current application only realizes single Digital Television descrambling pattern on an equipment.In the time only supporting kilocalorie scheme on an equipment, there is as above problem.In the time only supporting lesser calorie scheme on an equipment, due to the CA agreement disunity of lesser calorie, the CA interface of equipment cannot adaptive all lesser calories.Once the CA interface of equipment cannot the adaptive lesser calorie inserting, cannot realize the descrambling of digital television signal.How realizing the Digital Television descrambling pattern of supporting dissimilar card on an equipment, is the problem that needs solution.

Summary of the invention

The object of this invention is to provide a kind of control method, device and equipment of descrambling pattern, to solve the problem of the Digital Television descrambling pattern that how to realize compatible dissimilar card on an equipment.

The object of the invention is to be achieved through the following technical solutions:

A control method for Digital Television descrambling pattern, comprising:

According to the plug state of the slot of each digital television signal descrambling module, detect digital television signal descrambling module;

Be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations; Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, the digital television signal descrambling module of each insertion slot can be detected.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.

Preferably, in order to save space and input/output interface, can be by multiplexing the input/output interface of at least two slots.Accordingly, the implementation that is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding by Digital Television descrambling pattern configurations is: by the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to the highest operating state corresponding to digital television signal descrambling module of priority detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.

Preferably, after the state of above-mentioned multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, determine that the highest digital television signal descrambling module of priority detecting can use.

If two digital television signal descrambling modules detected, when digital television signal descrambling module that the priority that detects is the highest is unavailable, Digital Television descrambling pattern corresponding to digital television signal descrambling module using before still adopting.If at least three digital television signal descrambling modules detected, when digital television signal descrambling module that the priority that detects is the highest is unavailable, can select priority time high Digital Television descrambling pattern corresponding to digital television signal descrambling module, also Digital Television descrambling pattern corresponding to digital television signal descrambling module using before can adopting, can also select Digital Television descrambling pattern according to actual needs.

Based on above-mentioned any means embodiment, preferably, hang up the thread of the Digital Television descrambling pattern that is replaced, to can switch to fast this Digital Television descrambling pattern while needing.The Digital Television descrambling pattern being replaced is, before Digital Television descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.

Based on above-mentioned any means embodiment, preferably, if the highest digital television signal descrambling module of the priority detecting is for looking close card, after descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, obtains and insert the smart card information of looking close card by proprietary protocol; The display format identical according to the descrambling pattern corresponding with smart card shows the smart card information of obtaining.

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of control device of Digital Television descrambling pattern, comprising:

Detection module, for according to the plug state-detection digital television signal descrambling module of the slot of each digital television signal descrambling module;

Descrambling pattern configurations module, for by Digital Television descrambling pattern configurations being the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting; Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, the digital television signal descrambling module of each insertion slot can be detected.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.

Preferably, descrambling pattern configurations module is used for:

By the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to the highest operating state corresponding to digital television signal descrambling module of priority detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.

Preferably, after the state of described multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, described descrambling pattern configurations module also for: determine that the highest digital television signal descrambling module of priority detecting can use.

Based on above-mentioned any device embodiment, preferably, descrambling pattern configurations module also for:

The thread of the Digital Television descrambling pattern that hang-up is replaced; The described Digital Television descrambling pattern being replaced is, before descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of control appliance of Digital Television descrambling pattern, comprises the slot of processor, digital television signal descrambling module and at least two digital television signal descrambling modules:

In the slot of at least two digital television signal descrambling modules, each slot at least with a multiplexing input/output interface of all the other slots;

Described processor, for determining and detect after digital television signal descrambling module according to the plug state of each slot, be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations, wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, the digital television signal descrambling module of each insertion slot can be detected.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.In addition, the device that the embodiment of the present invention provides, by multiplexing the input/output interface of at least two slots, has effectively saved space and input/output interface.

Brief description of the drawings

The method flow diagram that Fig. 1 provides for the embodiment of the present invention;

A kind of control device schematic diagram that Fig. 2 provides for the embodiment of the present invention;

The another kind of control device schematic diagram that Fig. 3 provides for the embodiment of the present invention;

The electrical block diagram that Fig. 4 provides for the embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the technical scheme that the embodiment of the present invention is provided is elaborated.

The control method of the Digital Television descrambling pattern that the embodiment of the present invention provides as shown in Figure 1, specifically comprises following operation:

Step 100, according to the plug state of the slot of each digital television signal descrambling module, detect digital television signal descrambling module.

Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

Wherein, the priority of digital television signal descrambling module can be that device fabrication business is pre-configured, can be also that user arranges as required, and the present invention is not construed as limiting this.

If a digital television signal descrambling module detected, this digital television signal descrambling module is the highest digital television signal descrambling module of priority detecting.

Step 110, be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, the digital television signal descrambling module of each insertion slot can be detected.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.For example, the technical scheme that adopts the embodiment of the present invention to provide is provided with CAM card slot and smart card slot on an equipment.In the time that the interface of the smart card and the smart card slot that insert cannot adaptation, can't detect smart card.Now, if CAM card slot has CAM card to insert, because the descrambling of CAM card has unified standard, therefore still can use the CAM card of insertion to realize the descrambling of digital television signal, not affect the normal use of equipment.

Preferably, in order to save space and input/output interface, can be by multiplexing the input/output interface of at least two slots.Slot is realized different functions by different input/output interfaces, so-called multiplexing, refers to, two or more slots share at least one pin on hardware, and shared pin can be realized different functions for different slots.For example, CAM card slot and smart card slot share SOC (System on a Chip, SOC (system on a chip)) GOIP (output of General Purpose Input/Output universal input) 51 pins, under CAM mode card, this pin is used for carrying out input and output read operation, under smart card pattern, this pin is for power switch control.It should be noted in the discussion above that in order to ensure the plug state that each slot whenever can be detected, can not carry out multiplexing for detection of the input/output interface of plug state.Accordingly, the implementation that is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding by Digital Television descrambling pattern configurations is: by the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to operating state corresponding to digital television signal descrambling module detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.

Preferably, after the state of above-mentioned multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, determine that the highest digital television signal descrambling module of priority detecting can use.

If two digital television signal descrambling modules detected, when digital television signal descrambling module that the priority that detects is the highest is unavailable, Digital Television descrambling pattern corresponding to digital television signal descrambling module using before still adopting.If at least three digital television signal descrambling modules detected, when digital television signal descrambling module that the priority that detects is the highest is unavailable, can select priority time high Digital Television descrambling pattern corresponding to digital television signal descrambling module, also Digital Television descrambling pattern corresponding to digital television signal descrambling module using before can adopting, can also select Digital Television descrambling pattern according to actual needs.

Wherein, the disabled situation of digital television signal descrambling module can but be not limited only to comprise: digital television signal descrambling module is expired, in digital television signal descrambling module, there is no program operator, digital television signal descrambling module is set to the current period and can not watches, Digital Television descrambling module is not corresponding with Set Top Box, insufficient in amount in digital television signal descrambling module, digital television signal descrambling module region is incorrect, digital television signal descrambling module is upgraded, and smart card damage causes cannot proper reset or correctly communication etc.For CAM card, disabled situation can also be CAM card damage cause completing initialization, in CAM card without smart card etc.

If the disabled situation of digital television signal descrambling module do not detected, definite digital television signal descrambling module can be used.

Based on above-mentioned any means embodiment, if there is before the Digital Television descrambling pattern using, step 110 is specifically carried out the switching of Digital Television descrambling pattern.Preferably, hang up the thread of the Digital Television descrambling pattern that is replaced, to can switch to fast this Digital Television descrambling pattern while needing.The Digital Television descrambling pattern being replaced is, before Digital Television descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.

Wherein, detecting after digital television signal descrambling module, hanging up the thread of the Digital Television descrambling pattern being replaced.Concrete, be the highest Digital Television descrambling pattern corresponding to Digital Television descrambling module of priority detecting by Digital Television descrambling pattern configurations, and hang up the thread of the Digital Television descrambling pattern being replaced., can, after by Digital Television descrambling pattern configurations being the Digital Television descrambling pattern that Digital Television descrambling module that the priority that detects is the highest is corresponding, hang up the thread of the Digital Television descrambling pattern being replaced; Also can, being in the process of the Digital Television descrambling pattern that Digital Television descrambling module that the priority that detects is the highest is corresponding by Digital Television descrambling pattern configurations, hang up the thread of the Digital Television descrambling pattern being replaced.The present invention is not construed as limiting this.

Based on above-mentioned any means embodiment, preferably, if the highest digital television signal descrambling module of the priority detecting is for looking close card, after Digital Television descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, obtains and insert the smart card information of looking close card by proprietary protocol; The display format identical according to the Digital Television descrambling pattern corresponding with smart card shows the smart card information of obtaining.Wherein, smart card information can but be not limited only to comprise: the card number of smart card, operator's informaiton etc.

Concrete, can only passive demonstration by original host side and those message pop-ups that can not know in advance which kind of type of message are revised as the message that can Direct Recognition goes out type by customization mmi.Protocol layer is received after customization mmi message, intermediate layer is by message number and conditional access (Conditional Access, be called for short CA) in type of message shine upon, thereby show according to the identical display format of the descrambling pattern corresponding with smart card the smart card information of obtaining.

Customization mmi increases by three bytes before the titlestring of original mmi structure field, and first byte is 0x11, and second byte is 0x13, and the 3rd byte is message number.When two bytes above of finding the titlestring of the mmi receiving when us are like this 0x11 and 0x13, and can determine it is the mmi of customization, just can determine it is which kind of message by the message number of the 3rd byte.

The data structure of customization mmi is as follows:

0x11 0x13 Message number Title?string

The implication that each message number represents is as follows:

0x01: None-identified card

0x02: smart card is expired, please change card more

0x03: smart card is extracted

0x04: do not have program operator in card

0x05: condition is prohibited broadcasting

0x06: the current period is set to and can not watches

0x07: program circle is higher than the rank of watching of setting

0x08: smart card is not corresponding with this Set Top Box

0x09: with no authorized

0x0a: program decryption failure

0x0b: Igor Kanygin volume deficiency

0x0c: region is incorrect

0x0d: subcard needs and master card correspondence, please insert master card

0x0e: smart card verification failure, please contact operator

0x0f: smart card is during upgrading, does not please pull out card or shutdown

0x20: the smart card of please upgrading

0x21: frequently switching channels

0x22: smart card dormancy, ask after 5 minutes and restart

0x23: smart card is frozen, please contact operator

0x24: smart card is paused, please return rating and record to operation

0x25: please restart Set Top Box

In order to ensure depending on can normally using on the close equipment that is stuck in other unrealized proprietary protocols, customization mmi switch can also be set, in the time opening customization mmi switch, obtain and insert the smart card information of looking close card by proprietary protocol, in the time closing customization mmi switch, carry out information demonstration according to existing mode.

The form of proprietary protocol can but be not limited only to as shown in Table 1 and Table 2.

Table 1:Host Request form

Table 2:CAM Response

Below the several key orders in proprietary protocol are described:

Command_id0x20: the command list (CLIST) of supporting for inquiring about proprietary protocol.

Command_id0x40: obtain smart card numbers.

Command_id0x4c: customization mmi switch.

When inquiry is when a certain information, first need in command list (CLIST) that whether order that inquiry is used support at proprietary protocol.

The method that the embodiment of the present invention provides is applicable to the Set Top Box, digital TV integrated machine of cable digital TV card, satellite digital TV card, separation between machine and card etc. equipment.

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of control device of Digital Television descrambling pattern, as shown in Figure 2, comprising:

Detection module 201, for according to the plug state-detection digital television signal descrambling module of the slot of each digital television signal descrambling module;

Descrambling pattern configurations module 202, for by Digital Television descrambling pattern configurations being the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting; Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, can recognize the digital television signal descrambling module of each insertion slot.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.

Preferably, descrambling pattern configurations module 202 for:

By the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to the highest operating state corresponding to digital television signal descrambling module of priority detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.

Preferably, after the state of described multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, described descrambling pattern configurations module 202 also for: determine that the highest digital television signal descrambling module of priority detecting can use.

Based on above-mentioned any device embodiment, preferably, descrambling pattern configurations module 202 also for:

The thread of the Digital Television descrambling pattern that hang-up is replaced; The described Digital Television descrambling pattern being replaced is, before descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.

Based on the inventive concept same with method, the embodiment of the present invention also provides a kind of control appliance of Digital Television descrambling pattern, as shown in Figure 3, comprise the slot 301 of processor 302, digital television signal descrambling module 303 and at least two digital television signal descrambling modules:

In the slot 301 of at least two digital television signal descrambling modules, each slot at least with a multiplexing input/output interface of all the other slots;

Processor 302, for determining and detect after digital television signal descrambling module according to the plug state of each slot, be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations, wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.

The technical scheme that the embodiment of the present invention provides, be provided with the slot of at least two digital television signal descrambling modules, by detecting the plug state of slot of each digital television signal descrambling module, can recognize the digital television signal descrambling module of each insertion slot.Detecting that two even more after multiple digital TV signal descrambling module, the embodiment of the present invention has provided the implementation of therefrom selecting digital television signal descrambling module, select the digital television signal descrambling module that priority is the highest, use Digital Television descrambling pattern corresponding to digital television signal descrambling module of selecting to carry out descrambling.Visible, the technical scheme that the embodiment of the present invention provides can be supported the Digital Television descrambling pattern of dissimilar card on an equipment.In addition, the device that the embodiment of the present invention provides, by multiplexing the input/output interface of at least two slots, has effectively saved space and input/output interface.

The device that each embodiment of the invention described above provides can be the Set Top Box, digital TV integrated machine of cable digital TV card, satellite digital TV card, separation between machine and card etc. equipment, can be also the device being arranged in these equipment.

The equipment that each embodiment of the invention described above provides can be the Set Top Box, digital TV integrated machine of cable digital TV card, satellite digital TV card, separation between machine and card etc. equipment.

Taking concrete application scenarios as example, the technical scheme that the embodiment of the present invention is provided is elaborated below.

For two kinds of Digital Television descrambling patterns of compatible CAM card and smart card on digital TV integrated machine, on digital TV integrated machine, be provided with CAM card slot and smart card slot.In order to save space and input and output (IO) interface, these two slots adopt stacked mode in circuit design, and carry out the multiplexing of IO interface.As shown in Figure 4, wherein, PCMCIA is large card slot.

Under kilocalorie mode of operation, the GPIO51-54 of master chip SOC is as IORD (input and output read operation), IOWR (input and output write operation), RESET (reset), the REG (Register of kilocalorie, register) function, for realizing the operation such as data read-write control, RESET.

Under lesser calorie mode of operation, GPIO51 is for the control of lesser calorie power switch; GPIO54 selects to control for (3V, 5V) voltage of category-A, category-B card; GPIO52,53 are respectively used to lesser calorie DATA (data), CLK (clock) function.

In the time that GPIO is multiplexing, avoid occurring in addition signal cross-talk phenomenon, on segment signal line, use triode to carry out signal isolation.

It should be noted that: the IO mouth that large lesser calorie detects can not carry out multiplexing, guarantees whenever can detect the plug of two kinds of cards, this programme detects CD1, CD2 by the card under CAM card mode of operation and controls with the other common GPIO of SOC.

Based on foregoing circuit structure, digital TV integrated machine is in the time of control figure TV descrambling pattern, and its operation principle can be divided into following functions module:

Application interactive module, card detection module, card identification module and function handover module, circuit design module, workflow is as figure mono-.

Respectively based on each module, the control flow of Digital Television descrambling pattern is described below.

Application interactive module:

The prompt facility of the variety of event in display function and the descrambling process of ca/CI standard information is mainly provided.

This module meets smart card information by interaction design shows, the functions such as CAM card information displaying.

UI (User Interface, user interface) information comprises two parts, a part is the modular display information of CI or ca, the content of these information is fixed, comprise operator's informaiton, smart card information, version information etc., in the time that user wants to check these information, enter menu by certain menu entrance click keys and check; Another part is in program playing process, the various message that eject according to the situation of descrambling, the message of this part ca and CI in the communication protocol of standard are not identical, but by amendment CI communication protocol, this part are united, and have simplified like this logical construction of UI.

Current selection be which kind of Digital Television descrambling pattern, the UI information display entrance of which kind of Digital Television descrambling pattern is just provided.Taking the priority of smart card higher than the priority of CAM card as example, the UI of standard information shows according to detection and the recognition result of card can be divided into three kinds of scenes.

Scene one: in the time detecting that smart card is available, now, no matter whether have CAM and CAM whether can use, all only provide ca information display entrance.(smart card is preferential)

Scene two: when smart card not detected or intelligence being detected but when unavailable, only provide CI information display entrance.

Scene three: when all impossible used times of two kinds of cards, do not provide any ca/CI to show entrance.

Ejection information comprises: card is ready to, smart card is expired, do not have program operator etc. in unauthorized, card.

The outstanding feature of this module has two:

UI can detect with the result of identification and select flexibly to show content according to card.

Various Pop-up messages in descrambling process, by increasing proprietary protocol, guarantee that two kinds of UI Pop-up messages under Digital Television descrambling pattern are consistent.

Card detection module:

For detection of the insertion of CAM card and smart card with extract.

This module realizes the automatic detection to CAM card and smart card.

Concrete, thread of bottom layer driving startup detects the plug state of CAM card and smart card simultaneously.

The outstanding feature of this module is as follows:

Detect the plug state that thread can detect CAM card and smart card simultaneously.

Card identification module:

This module for recognition detection to module function whether normal/whether can use.

In the time detecting that CAM card or smart card insert, deciding to do before switching, first detect this card and whether can use, if unavailable, directly stop switching, return to original mode of operation.Can avoid so just finding after switching the situation of the impossible use of card.For smart card, the reset that this part need to be blocked and simple communication process, determine that smart card can normally work.For CAM card, need module to carry out initialization, can normal initialization represent that CAM card can normally work.At card cognitive phase, do not need to start the each task thread of ca or CI.

Because the performance of smart card is better than CAM card, preferably, once detect that smart card inserts, carry out immediately the reset operation of smart card, identify current smart card and whether can use, if available, be switched to smart card mode of operation.

In the inoperable situation of smart card, judge whether CAM card, if there is CAM card, carry out CAM card initialization, whether identification CAM can use, if can normal initialization, starts CI agreement, enters CAM card mode of operation.

The outstanding feature of this module is as follows:

By high the use rank contrast locating CAM card of smart card.

Increase card identification division, before enabling a kind of Digital Television descrambling pattern, first identified this card and whether can use, and then determined whether switch, avoided switching that rear card is unavailable needs again again to switch back and waste time.The identification of smart card need to reset and carry out the inspection of casystemid (CA system banner).The identification of CAM card need to be carried out module initialization.

Function handover module:

This module realizes the switching to Digital Television descrambling pattern.

When recognizing smart card when available, be switched to immediately and use smart card to carry out descrambling.In the time that smart card is unavailable, if detect, CAM can use, and is switched to CAM card descrambling pattern.In the time being switched to a kind of descrambling mode, first hanging up the related linear program in original descrambling mode, and switch multiplexing IO mouth to the operating state under new Digital Television descrambling pattern.

Due to multiplexing a lot of IO mouths between CAM draw-in groove and intelligent draw-in groove, before being switched to new Digital Television descrambling pattern, need to first discharge the shared resource of front a kind of Digital Television descrambling pattern, and call the software interface that switches IO mouth, make the mode of operation of multiplexing IO mouth in Contemporary Digital TV descrambling pattern, and then new Digital Television descrambling pattern is carried out to initialization.

Being switched to smart card by CAM card, to realize the flow process of descrambling as follows:

CI protocol stack related linear program is hung up, stop CAM descrambling-------" call the corresponding interface function, the function of multiplexing IO mouth is switched to the operating state of smart card-----" identification intelligent card available------" start ca related linear program and carry out descrambling and switch UI showing.

Being switched to CAM card by smart card, to realize the flow process of descrambling as follows:

Hang up ca related linear program, stop descrambling work-------" call the corresponding interface function, the function of multiplexing IO mouth is switched to the operating state-----of CAM card " start CI related linear program and carry out descrambling and switch UI showing.

The outstanding feature of this module is:

In the time stopping a kind of Digital Television descrambling pattern, be not thoroughly to destroy related linear program, and just by thread suspension, in the time switching back, can start fast so next time.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and amendment to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (10)

1. a control method for Digital Television descrambling pattern, is characterized in that, comprising:
According to the plug state of the slot of each digital television signal descrambling module, detect digital television signal descrambling module;
Be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations; Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.
2. method according to claim 1, is characterized in that, is the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations, comprising:
By the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to the highest operating state corresponding to digital television signal descrambling module of priority detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.
3. method according to claim 2, it is characterized in that, after the state of described multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, the method also comprises:
Definite the highest digital television signal descrambling module of priority detecting can be used.
4. according to the method described in claim 1~3 any one, it is characterized in that, the method also comprises:
The thread of the Digital Television descrambling pattern that hang-up is replaced; The described Digital Television descrambling pattern being replaced is, before Digital Television descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.
5. according to the method described in claim 1~3 any one, it is characterized in that, if the highest digital television signal descrambling module of the priority detecting is for looking close card, after Digital Television descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, the method also comprises:
Obtain the smart card information of looking close card described in insertion by proprietary protocol;
The display format identical according to the Digital Television descrambling pattern corresponding with smart card shows the smart card information of obtaining.
6. a control device for Digital Television descrambling pattern, is characterized in that, comprising:
Detection module, for according to the plug state-detection digital television signal descrambling module of the slot of each digital television signal descrambling module;
Descrambling pattern configurations module, for by Digital Television descrambling pattern configurations being the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting; Wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.
7. control device according to claim 6, is characterized in that, described descrambling pattern configurations module is used for:
By the state of the input/output interface multiplexing slot of the slot of digital television signal the descrambling module the highest priority detecting and other digital television signal descrambling modules, switch to the highest operating state corresponding to digital television signal descrambling module of priority detecting, and start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling.
8. control device according to claim 7, it is characterized in that, after the state of described multiplexing input/output interface is switched to the operating state that digital television signal descrambling module that the priority that detects is the highest is corresponding, start detection to the thread of Digital Television descrambling pattern corresponding to the highest digital television signal descrambling module of priority carry out descrambling before, described descrambling pattern configurations module also for: determine that the highest digital television signal descrambling module of priority detecting can use.
9. according to the control device described in claim 6~8 any one, it is characterized in that, described descrambling pattern configurations module also for:
The thread of the Digital Television descrambling pattern that hang-up is replaced; The described Digital Television descrambling pattern being replaced is, before descrambling pattern configurations is the Digital Television descrambling pattern that digital television signal descrambling module that the priority that detects is the highest is corresponding, and the Digital Television descrambling pattern using.
10. a control appliance for Digital Television descrambling pattern, comprises and it is characterized in that the slot of processor, digital television signal descrambling module and at least two digital television signal descrambling modules:
In the slot of described at least two digital television signal descrambling modules, each slot at least with a multiplexing input/output interface of all the other slots;
Described processor, for determining and detect after digital television signal descrambling module according to the plug state of each slot, be the highest Digital Television descrambling pattern corresponding to digital television signal descrambling module of priority detecting by Digital Television descrambling pattern configurations, wherein, the digital television signal descrambling module inserting on different slots has different priority, or dissimilar digital television signal descrambling module has different priority.
CN201410197963.5A 2014-05-12 2014-05-12 A kind of control method, device and the equipment of descrambling pattern CN103986950B (en)

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CN103200435A (en) * 2012-01-06 2013-07-10 北京东方广视科技股份有限公司 Set top box and control method and television signal transmission system used for same
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CN1262841A (en) * 1998-04-03 2000-08-09 松下电器产业株式会社 Portable viewing system
US20030110382A1 (en) * 2001-12-12 2003-06-12 David Leporini Processing data
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