CN1331343C - Conversion device and method for public interfacing digital television CI to IEEE-1394 interface - Google Patents

Conversion device and method for public interfacing digital television CI to IEEE-1394 interface Download PDF

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Publication number
CN1331343C
CN1331343C CNB2004100515358A CN200410051535A CN1331343C CN 1331343 C CN1331343 C CN 1331343C CN B2004100515358 A CNB2004100515358 A CN B2004100515358A CN 200410051535 A CN200410051535 A CN 200410051535A CN 1331343 C CN1331343 C CN 1331343C
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interface
digital television
file
decoder
ieee
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CN1602045A (en
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严显峰
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Guowei Group Shenzhen Co ltd
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Shenzhen State Micro Technology Co Ltd
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Abstract

The present invention relates to a conversion device and a conversion method from digital television CI public interfaces to IEEE-1394 interfaces, which switches an IEEE-1394 device into a digital TV device and supports the data in the IEEE-1394 device to be directly displayed in the digital TV via the device, and television programs are saved in an outside IEEE-1394 device. A digital TV receiver is connected with a conversion device with common interfaces via the common interfaces. The conversion method comprises the procedures of a judging procedure, an executing procedure and a sending procedure; in the judging procedure, the device judges whether the files of the user selection IEEE-1394 device can be decoded by a built-in decoder of the digital TV; in the executing procedure, when the files selected by the IEEE-1394 device can not be decoded by the built-in decoder of the digital TV, a microprocessor can decode and recode via a logic unit of the conversion device; in the sending procedure, the formatted files which can be identified by the built-in decoder of the digital TV via decoding by the built-in decoder of the digital TV or encoding and decoding are divided and packaged into normal TS stream format, and the formatted files can be supplied to the digital TV via the CI data stream interfaces and can be displayed.

Description

Digital television CI interface is to the conversion equipment and the conversion method thereof of IEEE-1394 interface
Technical field
The present invention relates to a kind of IEEE-1394 equipment is inserted the equipment of digital television and supports data play-overing in digital television in the IEEE-1394 equipment by this equipment, and TV programme is stored in conversion equipment and the conversion method thereof of the digital television CI interface of exterior I EEE-1394 equipment to the IEEE-1394 interface.
Background technology
In the separation between machine and card scheme of digital television broadcast system (DVB), digital television and conditional access module are separately, digital television is finished the work that receives the decode of signal, conditional access module is finished the descrambling and the decryption work of signal, between digital television and conditional access module, adopt disclosed interface standard, utilize this standard interface just can finish visit, and needn't consider concrete realization details digital television and conditional access module.
In order to realize the communication between digital television and the conditional access module, Europe has defined a disclosed standard interface-CI interface (EN50221: the common interface of visiting with other digital video application that is used to have ready conditions is described), this standard C I interface definition two logic interfacings: data stream interface and command interface, by this CI interface, can realize communicating by letter to conditional access module, digital television and other digital-video equipments.
IEEE-1394 interfacing: Apple is referred to as FireWire (live wire), and Sony is referred to as i.Link, and TexasInstruments is referred to as Lynx.Although the brand name difference of manufacturer registration separately, essence all is a technology, via Institute of Electrical and Electronics Engineers IEEE (Institute of Electrical and ElectronicsEngineers) audit by after name and be IEEE-1394.IEEE-1394 never only is the new technology that can only use in some field, and it has the market space widely, even might replace present pci bus.IEEE-1394 allows the maximum transfer speed of every equipment can reach 400Mbps (be expected to from now on rise to 800Mbps, 1.6Gbps, even 3.2Gbps), controls without any need for main frame, can support simultaneously synchronously and asynchronous transfer mode.
Although IEEE-1394 is not also extensively adopted by institute of PC manufacturer at present, its important function in the digital imagery field is paid close attention to by common people.Sony as the industry bellwether sets an example for the rank-and-file, and at digital camera, digital camera provides comprehensive support to the IEEE-1394 technology in the numerous product such as notebook computer even desktop PC.Apple company as IEEE-1394 standard development person also is to have poured into great painstaking effort to it.In addition, software industry giant Microsoft has also begun the product development towards IEEE-1394.Undoubtedly, this will promote popularizing and promoting of IEEE-1394 technology greatly.
As a kind of open technical standard of transfer of data, IEEE-1394 is used in numerous fields.Certainly, present, the IEEE-1394 technology is used the widest still digital imagery field, and the product of support comprises digital camera or gamma camera etc.Yet the potential market of IEEE-1394 is far from these, and being all has its wide ample scope for abilities at aspects such as hard disc of computer or network interconnections.The HotDrive hard disk that Evergreen company releases has just adopted the IEEE-1394 technology.
On the whole, IEEE-1394 has following characteristics: the cheapness-little-speed that takes up room is fast-open-standards-supports hot plug-extendible message transmission rate-topological structure is versatile and flexible-fully numeral compatible-can set up peer-to-peer network-support simultaneously synchronously with asynchronous two kinds of data-transmission modes.
At present, the IEEE1394 interface bus has been widely used in all kinds of large buffer memory equipment, particularly as equipment such as laptop computer, digital camera, digital cameras.A large amount of audio-video frequency contents is stored in the various kinds of equipment, particularly in the memory of digital image device, along with Digital Television extensively popularize with and the enriching constantly of service, Digital Television will become optimal player, the High Data Rate that the IEEE-1394 interface can satisfy audio frequency and video transmission requires and user's hot plug requirement, is the Perfected process that inserts Digital Television.Simultaneously, more and more Feng Fu digital television program will cause digital television program is selected the demand of preserving, and directly be saved in digital TV contents in user's the mass-memory unit fast by the IEEE-1394 interface, equipment such as computer, portable hard drive for example will be simply a kind of and mode easily.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point of the prior art and a kind of equipment that the IEEE-1394 interface equipment is inserted Digital Television is provided, and by image file the play-overing and editing in Digital Television in this equipment support IEEE-1394 interface equipment, and the method that TV programme is stored in exterior I EEE-1394 interface equipment.Provide a kind of IEEE-1394 equipment is inserted the equipment of digital television, and support data in the IEEE-1394 equipment play-overing and TV programme is stored in conversion equipment and the conversion method thereof of the digital television CI interface of exterior I EEE-1394 equipment to the IEEE-1394 interface in digital television by this equipment.
Purpose of the present invention can reach by following measure:
This digital television CI interface is to the conversion equipment of IEEE-1394 interface, and its special character is: be connected by the CI interface between the conversion equipment of a digital television and an employing CI interface.
This CI interface is made up of the coffret and the command interface of parallel and two-way operation.
Wherein: have seven kinds of conversion equipments and can realize the object of the invention.
First kind of conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One IEEE-1394 terminal is arranged at the front end of casing, in order to transmission IEEE1394 digital signal;
One display module is arranged at the front end of casing, in order to realize the visual of system;
One PCMCIA PCMCIA (personal computer memory card international association) terminal is arranged at the rear end of casing, in order to transmission TS stream and communication information;
One radio receiving transmitting module is arranged at the casing front end;
One control unit is arranged in the casing between the digital television and other functional modules of conversion equipment, in order to control whole system operation process and with digital television between communicate by letter;
One logical block is arranged between casing inner control unit and the large capacity cache, in order to realize bi-directional data conversion and the output between IEEE-1394 equipment and the standard TS stream;
One large capacity cache is arranged between casing inner control unit and the logical block, in order to the storage original document and through the file of recompile;
One remote controller combines with radio receiving transmitting module, to realize user's controlled function;
Wherein, when the file in the IEEE-1394 equipment is play in user's selection, control unit will read user-selected fileinfo and this document will be write large capacity cache, decode accordingly and recompile by logical block again, finally the form output file of the coded system that can discern with the digital television decoder is to large capacity cache, and the TS stream format of this document being cut apart the standard of being packaged into by control unit offers digital television by the CI data stream interface and plays again;
When the user selects to preserve the digital television program, control unit will carry out communication by CI command interface and Digital Television machine controller, large capacity cache in the IEEE-1394 equipment is offered the digital television internal control circuit as a resource, and require the digital television control circuit from decoded TS stream format, the information of this program to be extracted, spread the large capacity cache of delivering to conversion equipment by the CI data stream interface, and under the control of conversion equipment control unit, this program stream by the logical block recompile, is write access customer IEEE-1394 equipment by control unit control with file then.
The described coffret of this CI interface and command interface are the setting of parallel and two-way operation.
Second kind of conversion equipment comprises:
This conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microcontroller, be arranged between other functional module of digital television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microcontroller in the casing, comprehensive decoder and CI interface, in order to store original document and through the file of recompile;
One encoder is arranged in the casing microcontroller with comprehensively between the decoder, in order to being the form that the built-in decoder of Digital Television can be decoded with decoded file recompile;
One comprehensive decoder is arranged between interior large capacity cache of casing and the encoder, in order to the various audio-video documents in the user IEEE-1394 equipment are decoded;
One radio receiving transmitting module is arranged at the casing front end;
Wherein, insert in the digital television process at equipment, conversion equipment will and digital television between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form can't find the information of coupling in corresponding information list, microcontroller will read the fileinfo of user's selection and file will be write large capacity cache, decode accordingly by comprehensive decoder again after encoder carries out recompile, make it meet the standard coding format that the digital television decoder can be decoded, finally the form output file of the coded system that can discern with the digital television decoder is to microcontroller, and the TS stream format of this document being cut apart the standard of being packaged into by microcontroller is sent to the broadcast of decoding in the digital television by CI transport stream interface again.
The described coffret of this CI interface and command interface are the setting of parallel and two-way operation.
The third conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microcontroller, be arranged between other functional module of digital television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microcontroller in the casing, comprehensive decoder and CI interface, in order to store original document and through the file of recompile;
Conversion equipment will directly cushion file, and be packaged into the TS stream format when confirming the file that the digital television decoder can be supported to choose, and is sent to the broadcast of decoding in the digital television by CI transport stream interface;
Wherein, insert in the digital television process at equipment, conversion equipment will and digital television between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form finds the information that is complementary in corresponding information list, microcontroller will directly read in large capacity cache to file, and the TS stream format of this document being cut apart the standard of being packaged into is sent to the broadcast of decoding in the digital television by CI transport stream interface.
This CI interface is made up of the coffret and the command interface of parallel and two-way operation.
The 4th kind of conversion equipment comprises:
This conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One decoder module is arranged at respectively between microcontroller, large capacity cache and the encoder, is made of several decoders in parallel, in order to select corresponding decoder under the control of microcontroller file is decoded;
One large capacity cache is arranged at respectively between microcontroller and the decoder module, in order to the storage original document and through the file of recompile;
One encoder is connected to decoder module, carries out recompile in order to the form that will adopt the built-in decoder of digital television to decode through the file of decoding;
Wherein, when the digital coding in the IEEE-1394 equipment and decode procedure are finished by the integrated circuit ASIC of special use, microcontroller will directly read in large capacity cache to file, under the control of microcontroller, decoder module selects corresponding decoder that file is decoded, and encoded device will adopt the built-in decoder of digital television to decode through the file of decoding form carry out recompile, be sent to the broadcast of decoding in the digital television with the TS stream format of standard by CI transport stream interface.The described coffret of this CI interface and command interface are the setting of parallel and two-way operation.
The 5th kind of conversion equipment comprises:
This conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU, the two-way linker memory of difference, coprocessor, large capacity cache, its unidirectional connection microcontroller, coding output are used for the control of program and decode procedure;
One program storage, its two-way connection CPU is made of several decoder modules, coding module, and each module is decoded to user-selected file at different coded formats, recompile output then;
One coprocessor, its two-way connection CPU in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
Wherein, digital coding in IEEE-1394 equipment and decode procedure are by CPU, coprocessor, software, when program storage is finished, microcontroller will directly read in large capacity cache to file, and under the control of CPU, program storage selects corresponding decoder module that file is decoded, and encoded module will adopt the built-in decoder of digital television to decode through the file of decoding form carry out recompile, after the TS stream format that CPU will encode with standard is sent to the broadcast of decoding in the digital television by CI transport stream interface.
The described coffret of this CI interface and command interface are the setting of parallel and two-way operation.
The 6th kind of conversion equipment comprises:
This conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU, the two-way linker memory of difference, coprocessor, large capacity cache, its unidirectional connection microcontroller, coding module are used for the control of program and decode procedure;
One program storage, its two-way connection CPU is made of several decoder modules, and each module is decoded to user-selected file at different coded formats;
One coprocessor, its two-way connection CPU in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
One coding module, it is connected in CPU, carrying out recompile through the form that the file of decoding can be decoded with the built-in decoder of digital television;
Wherein, the The data software function in IEEE-1394 equipment is finished comprehensive decoding, and when adopting special-purpose integrated circuit ASIC to carry out the encoding and decoding of hardware encoding, decoding function is finished with the various program modules that reside in the program storage by CPU.
The described coffret of this CI interface and command interface are the setting of parallel and two-way operation.
The 7th kind of conversion equipment comprises:
This conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU, the two-way linker memory of difference, coprocessor, large capacity cache, its unidirectional connection microcontroller, coding module are used for the control of program and decode procedure;
One program storage, its two-way connection CPU is made of several decoder modules, and each module is decoded to user-selected file at different coded formats;
One coprocessor, its two-way connection CPU in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
One coding module, it is connected in CPU, carrying out recompile through the form that the file of decoding can be decoded with the built-in decoder of digital television;
Wherein, the The data software function in IEEE-1394 equipment is finished comprehensive decoding, and when adopting special-purpose integrated circuit ASIC to carry out the encoding and decoding of hardware encoding, decoding function is finished with the various program modules that reside in the program storage by CPU.
This device can be plugged into computer peripheral device respectively.
Purpose of the present invention can also reach by following measure:
This digital television CI interface is to the conversion method of IEEE-1394 interface, and its special character is:
It comprises following steps:
Determining step judges whether the file of the IEEE-1394 equipment that the user selects can be by the built-in decoder decode of digital television;
Execution in step, if determining step is judged file selected in the IEEE-1394 equipment can't be by the built-in decoder decode of digital television the time, microcontroller will be decoded and recompile by the logical block of conversion equipment;
Forwarding step, for being cut apart packing by built-in decoder decode of digital television or the formatted file that behind coding and decoding, can discern with the built-in decoder of digital television, the TS stream format of generation standard offers digital television by the CI data stream interface and plays.
The present invention has following advantage compared to existing technology:
1. by this equipment, realized the exchanges data of digital television and computer, can be linked in the television set easily after making audiovisual content in the Computer IP network download in the IEEE-1394 apparatus carriers and go.
2. this remote control of equipment self band and decoding device, after the content in the IP network was linked in the television set, existing digital television need not increase any software just can realize that audio frequency and video frequency program play in computer.
3. by this equipment, the audio frequency that television set is received, video frequency program can directly be sent to by the IEEE-1394 interface and go in the computer and note.
4. by this equipment, can be connected, wherein content is shown on television set with the digital camera and the video camera of band IEEE-1394 interface.
5. can content record be got off being connected by the DVD burner of IEEE-1394 interface with the outside.
6. above audio frequency and video includes but not limited to following form: MP3, MPEG2, MPEG4, MPEG7.
7. can also other IEEE-1394 interface equipment be linked into digital television by this equipment.
Description of drawings
Fig. 1 is the CI interface block diagram of digital television broadcast system of the present invention.
Fig. 2 is the protocol architecture figure of the CI interface command interface of PCMCIA PCMCIA (personal computer memory card international association) interface standard of the present invention.
Fig. 3 is that the present invention is at the functional block diagram of confirming whole system under the situation that user-selected played file can't be decoded by the digital television inner demoder.
Fig. 4 is that the present invention is at the functional block diagram of confirming whole system under the situation that user-selected played file can be decoded by the digital television inner demoder.
Fig. 5 is the block diagram that the present invention uses the functional module of hardware encoding and decode logic.
Fig. 6 is that the present invention uses software function to finish the codec functions module frame chart of coding and comprehensive decoding.
Fig. 7 is that the present invention adopts software function to finish comprehensive decoding, adopts special integrated circuit to carry out the codec functions module frame chart of hardware encoding.
Embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
Fig. 1, Fig. 2 show first embodiment of the present invention.
Be connected by CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One IEEE-1394 terminal is arranged at the front end of casing, in order to transmission IEEE1394 digital signal;
One display module is arranged at the front end of casing, in order to realize the visual of system;
One PCMCIA PCMCIA (personal computer memory card international association) terminal is arranged at the rear end of casing, in order to transmission TS stream and communication information;
One radio receiving transmitting module is arranged at the casing front end;
One control unit is arranged in the casing between the digital television and other functional modules of conversion equipment, in order to control whole system operation process and with digital television between communicate by letter;
One logical block is arranged between casing inner control unit and the large capacity cache, in order to realize bi-directional data conversion and the output between IEEE-1394 equipment and the standard TS stream;
One large capacity cache is arranged between casing inner control unit and the logical block, in order to the storage original document and through the file of recompile;
One remote controller combines with radio receiving transmitting module, to realize user's controlled function;
Wherein, when the file in the IEEE-1394 equipment 4 is play in user's selection, control unit will read user-selected fileinfo and this document will be write large capacity cache, decode accordingly and recompile by logical block again, finally the form output file of the coded system that can discern with the digital television decoder is to large capacity cache, and the TS stream format of this document being cut apart the standard of being packaged into by control unit offers digital television 1 by the CI data stream interface and plays again;
When the user selects to preserve the digital television program, control unit will carry out communication by CI command interface and Digital Television machine controller, large capacity cache in the IEEE-1394 equipment 4 is offered the digital television internal control circuit as a resource, and require the digital television control circuit from decoded TS stream format, the information of this program to be extracted, spread the large capacity cache of delivering to conversion equipment by the CI data stream interface, and under the control of conversion equipment 2 control units, this program stream by the logical block recompile, is write access customer IEEE-1394 equipment 4 by control unit control with file then.
Conversion equipment 2 is as the IEEE-1394 server in the downloading process, support is communicated by letter with various IEEE-1394 portable equipments and computer, by program data stream being repackaged into the IEEE-1394 transmission format protocol, in data preservation and user IEEE-1394 equipment 2, when just having inserted, reads IEEE-1394 equipment 2 fileinfo in the conversion equipment 2, and show all audio-video document information and picture file information to the user by display screen, the user can select to handle to file, control unit will select the user information to send to logical block, and the control logic unit is operated accordingly.In file process and playing process, control unit will show relevant information in real time, inquire about the audio-video document information in the IEEE-1394 equipment in real time, and listed files is shown on display screen, and the user can select to handle to file by remote controller.
These CI interface 3 described coffrets and command interface are the setting of parallel and two-way operation.CI interface 3 comprises two parts: transport stream interface and command interface, two interfaces all are the stratification designs, allow to adopt same upper-layer protocol and adopt different physical layers to connect, in this implementation, employing PCMCIA PCMCIA (personal computer memory card international association) standard interface.Command interface comprises physical channel and standard agreement in order to set up the communication connection between conversion equipment 2 and digital television 1, the transport stream interface is used for transmitting TS stream, in this programme, finish TS stream after the conversion and will directly send in the digital television 1 as no scrambling code stream and directly decode.See also Fig. 2, in the DVBCI interface command interface protocol structure of PCMCIA PCMCIA (personal computer memory card international association) interface standard, I is a DVBCI interface command protocol layer of the interface, and II is based on the protocol layer that PCMCIA PCMCIA (personal computer memory card international association) standard realizes CI interface command interface.Wherein, application layer is in order to provide different resource and application, session layer can be when equipment needs resource, set up a dialogue to resource, the general transmission layer can control transmission establishment of connection and deletion, and connects by transmission and to transmit data, and transport layer is set up the transfer of data that is suitable for PCMCIA PCMCIA (personal computer memory card international association) physical interface, link layer is provided to the data channel of distinct device, and physical layer has defined the electrical characteristic of physical connection.In stratification design, the underlying protocol data are transparent to upper-layer protocol, that is to say, upper-layer protocol can directly utilize bottom data and needn't consider the source and the mode of data.By the command interface layer, can set up effective negotiation between conversion equipment and the digital television, fileinfo and control information that transmission is relevant, realize directly being sent in the digital television decoder through the file of conversion, and support the TV programme that the user is selected to send back conversion equipment, to realize that the digital television program is downloaded preservation from middle the separating of code stream.
Fig. 3, Fig. 2 show second embodiment of the present invention.
CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface is connected.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microcontroller, be arranged between other functional module of digital television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microcontroller in the casing, comprehensive decoder and CI interface, in order to store original document and through the file of recompile;
One encoder is arranged in the casing microcontroller with comprehensively between the decoder, in order to being the form that the built-in decoder of Digital Television can be decoded with decoded file recompile;
One comprehensive decoder is arranged between interior large capacity cache of casing and the encoder, in order to the various audio-video documents in the user IEEE-1394 equipment are decoded;
One radio receiving transmitting module is arranged at the casing front end;
Wherein, insert in digital television 1 process at conversion equipment 2, conversion equipment 2 will and digital television 1 between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form can't find the information of coupling in corresponding information list, conversion equipment 2 will be controlled decoder it will be decoded, recompile then, make it meet the standard coding format that digital television decoder can be decoded, be packaged into the TS stream format by microcontroller then, be sent to the broadcast of decoding in the Digital Television by CI transport stream interface.
Microcontroller will read the fileinfo of user's selection and file will be write large capacity cache, decode accordingly by comprehensive decoder again after encoder carries out recompile, make it meet the standard coding format that the digital television decoder can be decoded, finally the form output file of the coded system that can discern with the digital television decoder is to microcontroller, and the TS stream format of this document being cut apart the standard of being packaged into by microcontroller is sent to the broadcast of decoding in the digital television 1 by CI transport stream interface again.
Fig. 4, Fig. 2 show the 3rd embodiment of the present invention.
CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface is connected.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microcontroller, be arranged between other functional module of digital television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microcontroller in the casing, comprehensive decoder and CI interface, in order to store original document and through the file of recompile;
Conversion equipment 2 will directly cushion file, and be packaged into the TS stream format when confirming the file that the digital television decoder can be supported to choose, and is sent to the broadcast of decoding in the digital television 1 by CI transport stream interface
Wherein, insert in digital television 1 process at conversion equipment 2, conversion equipment 2 will and digital television 1 between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form finds the information that is complementary in corresponding information list, microcontroller will directly read in large capacity cache to file, and the TS stream format of this document being cut apart the standard of being packaged into is sent to the broadcast of decoding in the digital television by CI transport stream interface.
Fig. 5, Fig. 2 show the 4th embodiment of the present invention.
CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface is connected.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microcontroller 5, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
One decoder module 6 is arranged at respectively between microcontroller, large capacity cache and the encoder, is made of several decoders in parallel, in order to select corresponding decoder under the control of microcontroller file is decoded;
One large capacity cache 7 is arranged at respectively between microcontroller and the decoder module, in order to the storage original document and through the file of recompile;
One encoder 8 is connected to decoder module, carries out recompile in order to the form that will adopt digital television 1 built-in decoder to decode through the file of decoding;
Wherein, when the digital coding in the IEEE-1394 equipment 4 and decode procedure are finished by the integrated circuit ASIC of special use, microcontroller 5 will directly read in large capacity cache 7 to file, under the control of microcontroller 5, decoder module 6 selects corresponding decoder that file is decoded, and encoded device 8 will adopt the built-in decoder of digital television to decode through the file of decoding form carry out recompile, be sent to the broadcast of decoding in the digital television 1 with the TS stream format of standard by CI transport stream interface.
Fig. 6, Fig. 2 show the 5th embodiment of the present invention.
CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface is connected.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU9, the two-way linker memory 10 of difference, coprocessor 11, large capacity cache 7, its unidirectional connection microcontroller 5, coding output are used for the control of program and decode procedure;
One program storage 10, its two-way connection CPU9 is made of several decoder modules, coding module, and each module is decoded to user-selected file at different coded formats, recompile output then;
One coprocessor 11, its two-way connection CPU9 in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU9;
One large capacity cache 7, it is two-way connection CPU9 and microcontroller 5 respectively, in order to the storage original document and through the file of recompile;
One microcontroller 5, it inserts CPU9, large capacity cache 7 respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
Wherein, digital coding in IEEE-1394 equipment 4 and decode procedure are by CPU9, coprocessor 11, software, when program storage 10 is finished, microcontroller 5 will directly read in large capacity cache 7 to file, and under the control of CPU9, program storage 10 selects corresponding decoder module that file is decoded, and the form that encoded module will adopt digital television 1 built-in decoder to decode through the file of decoding carries out recompile, coprocessor 11 can reduce the workload of DSP by FFT fast Flourier computing fast, improves the speed of encoding-decoding process.After the TS stream format that CPU9 will encode with standard is sent to the broadcast of decoding in the digital television 1 by CI transport stream interface.
Fig. 7, Fig. 2 show the 6th embodiment of the present invention.
CI interface 3 between the conversion equipment 2 of a digital television 1 and an employing CI interface is connected.
This conversion equipment 2 comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU9, the two-way linker memory 10 of difference, coprocessor 11, large capacity cache 7, its unidirectional connection microcontroller 5, coding module 12 are used for the control of program and decode procedure;
One program storage 10, its two-way connection CPU9 is made of several decoder modules, and each module is decoded to user-selected file at different coded formats;
One coprocessor 11, its two-way connection CPU9 in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache 7, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU9, large capacity cache 7 respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
One coding module 12, it is connected in CPU9, carrying out recompile through the form that the file of decoding can be decoded with digital television 1 built-in decoder;
Wherein, the The data software function in IEEE-1394 equipment 4 is finished comprehensive decoding, and when adopting special-purpose integrated circuit ASIC to carry out the encoding and decoding of hardware encoding, decoding function is finished with the various program modules that reside in the program storage 10 by CPU9.
This digital television CI interface comprises following steps to the conversion method of IEEE-1394 interface:
Determining step judges whether the file of the IEEE-1394 equipment that the user selects can be by the built-in decoder decode of digital television;
Execution in step, if determining step is judged file selected in the IEEE-1394 equipment can't be by the built-in decoder decode of digital television the time, microcontroller will be decoded and recompile by the logical block of conversion equipment;
Forwarding step, for being cut apart packing by built-in decoder decode of digital television or the formatted file that behind coding and decoding, can discern with the built-in decoder of digital television, the TS stream format of generation standard offers digital television by the CI data stream interface and plays.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.

Claims (7)

1. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One IEEE-1394 terminal is arranged at the front end of casing, in order to transmission IEEE1394 digital signal;
One display module is arranged at the front end of casing, in order to realize the visual of system;
One PCMCIA PCMCIA (personal computer memory card international association) terminal is arranged at the rear end of casing, in order to transmission TS stream and communication information;
One radio receiving transmitting module is arranged at the casing front end;
One control unit is arranged in the casing between the Digital Television and other functional modules of conversion equipment, in order to control whole system operation process and with Digital Television between communicate by letter;
One logical block is arranged between casing inner control unit and the large capacity cache, in order to realize bi-directional data conversion and the output between IEEE-1394 equipment and the standard TS stream;
One large capacity cache is arranged between casing inner control unit and the logical block, in order to the storage original document and through the file of recompile;
One remote controller combines with radio receiving transmitting module, to realize user's controlled function;
Wherein, when the file in the IEEE-1394 equipment is play in user's selection, control unit will read user-selected fileinfo and this document will be write large capacity cache, decode accordingly and recompile by logical block again, finally the form output file of the coded system that can discern with digital television decoder is to large capacity cache, and the TS stream format of this document being cut apart the standard of being packaged into by control unit offers Digital Television by the CI data stream interface and plays again;
When the user selects to preserve digital television program, control unit will carry out communication by CI interface and Digital Television controller, large capacity cache in the IEEE-1394 equipment is offered the Digital Television internal control circuit as a resource, and require the Digital Television control circuit from decoded TS stream format, the information of this program to be extracted, spread the large capacity cache of delivering to conversion equipment by the CI data stream interface, and under the control of conversion equipment control unit, this program stream by the logical block recompile, is write access customer IEEE-1394 equipment by control unit control with file then; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
2. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microprocessor, be arranged between other functional module of Digital Television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microprocessor in the casing, comprehensive decoder and CI interface, cushions preservation in order to the file to each stage in the processing procedure;
One encoder is arranged in the casing microprocessor with comprehensively between the decoder, in order to being the form that the built-in decoder of Digital Television can be decoded with decoded file recompile;
One comprehensive decoder is arranged between interior large capacity cache of casing and the encoder, in order to the various audio-video documents in the user IEEE-1394 equipment are decoded;
One radio receiving transmitting module is arranged at the casing front end;
Wherein, insert in the Digital Television process at equipment, conversion equipment will and digital television receiver between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form can't find the information of coupling in corresponding information list, microprocessor will read the fileinfo of user's selection and file will be write large capacity cache, decode accordingly by comprehensive decoder again after encoder carries out recompile, make it meet the standard coding format that digital television decoder can be decoded, finally the form output file of the coded system that can discern with digital television decoder is to microprocessor, and the TS stream format of this document being cut apart the standard of being packaged into by microprocessor is sent to the broadcast of decoding in the Digital Television by CI transport stream interface again; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
3. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One microprocessor, be arranged between other functional module of Digital Television and conversion equipment in the casing, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division be packaged into TS and transmit above flowing data stream interface at CI;
One display screen is arranged at the front end of casing, in order to realize the visual of system;
One large capacity cache is arranged between the data stream interface of microprocessor in the casing, comprehensive decoder and CI interface, cushions preservation in order to the file to each stage in the processing procedure;
Conversion equipment will directly cushion file, and be packaged into the TS stream format when confirming the file that digital television decoder can be supported to choose, and is sent to the broadcast of decoding in the Digital Television by CI transport stream interface;
Wherein, insert in the Digital Television process at equipment, conversion equipment will and digital television receiver between carry out the initialization communication, comprise natural list information each other, the coded format that can decode, and set up corresponding tables of data, if user-selected document No. form finds the information that is complementary in corresponding information list, microprocessor will directly read in large capacity cache to file, and the TS stream format of this document being cut apart the standard of being packaged into is sent to the broadcast of decoding in the Digital Television by CI transport stream interface; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
4. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One decoder module is arranged at respectively between microcontroller, large capacity cache and the encoder, is made of several decoders in parallel, in order to select corresponding decoder under the control of microcontroller file is decoded;
One large capacity cache is arranged at respectively between microcontroller and the decoder module, in order to the storage original document and through the file of recompile;
One encoder is connected to decoder module, carries out recompile in order to the form that will adopt the built-in decoder of Digital Television to decode through the file of decoding;
Wherein, when the digital coding in the IEEE-1394 equipment and decode procedure are finished by the integrated circuit ASIC of special use, microcontroller will directly read in large capacity cache to file, under the control of microcontroller, decoder module selects corresponding decoder that file is decoded, and encoded device will adopt the built-in decoder of Digital Television to decode through the file of decoding form carry out recompile, be sent to the broadcast of decoding in the Digital Television with the TS stream format of standard by CI transport stream interface; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
5. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU, the two-way linker memory of difference, coprocessor, large capacity cache, its unidirectional connection microprocessor, coding output are used for the control of program and decode procedure;
One program storage, its two-way connection CPU is made of several decoder modules, coding module, and each module is decoded to user-selected file at different coded formats, recompile output then;
One coprocessor, its two-way connection CPU in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
Wherein, digital coding in IEEE-1394 equipment and decode procedure are by CPU, coprocessor, software, when program storage is finished, microcontroller will directly read in large capacity cache to file, and under the control of CPU, program storage selects corresponding decoder module that file is decoded, and encoded module will adopt the built-in decoder of Digital Television to decode through the file of decoding form carry out recompile, after the TS stream format that CPU will encode with standard is sent to the broadcast of decoding in the Digital Television by CI transport stream interface; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
6. a Digital Television CI interface is characterized in that to the conversion equipment of IEEE-1394 interface: digital television receiver and adopts between the conversion equipment of CI interface and is connected by the CI interface;
Described conversion equipment comprises:
One casing comprises upper cover, the lower cover that can fasten mutually;
One CPU, the two-way linker memory of difference, coprocessor, large capacity cache, its unidirectional connection microprocessor, coding module are used for the control of program and decode procedure;
One program storage, its two-way connection CPU is made of several decoder modules, and each module is decoded to user-selected file at different coded formats;
One coprocessor, its two-way connection CPU in order to quickening the process of CPU encoding and decoding, and can reduce the workload of CPU;
One large capacity cache, it is two-way connection CPU and microcontroller respectively, in order to the storage original document and through the file of recompile;
One microcontroller, it inserts CPU, large capacity cache respectively, in order to the work of each functional module of control transformation device interior, processing and Digital Television on the CI command interface communicate by letter and will change after file division transmit above being packaged into the data stream interface of TS stream at CI;
One coding module, it is connected in CPU, carrying out recompile through the form that the file of decoding can be decoded with the built-in decoder of Digital Television;
Wherein, the The data software function in IEEE-1394 equipment is finished comprehensive decoding, and when adopting special-purpose integrated circuit ASIC to carry out the encoding and decoding of hardware encoding, decoding function is finished with the various program modules that reside in the program storage by CPU; Described CI interface is made up of the coffret and the command interface of parallel and two-way operation.
7. a Digital Television CI interface is characterized in that to the conversion method of IEEE-1394 interface:
Comprise following steps:
Determining step judges whether the file of the IEEE-1394 equipment that the user selects can be by the built-in decoder decode of Digital Television;
Execution in step, if determining step is judged file selected in the IEEE-1394 equipment can't be by the built-in decoder decode of Digital Television the time, microprocessor will be decoded and recompile by the logical block of conversion equipment;
Forwarding step, for being cut apart packing by built-in decoder decode of Digital Television or the formatted file that behind coding and decoding, can discern with the built-in decoder of Digital Television, the TS stream format of generation standard offers Digital Television by the CI data stream interface and plays.
CNB2004100515358A 2004-09-21 2004-09-21 Conversion device and method for public interfacing digital television CI to IEEE-1394 interface Expired - Fee Related CN1331343C (en)

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CN104798378B (en) * 2012-11-19 2016-08-24 三菱电机株式会社 Digital broacast receiver and digital broadcast receiving method
CN105611398B (en) * 2015-12-31 2019-04-23 深圳国微技术有限公司 A kind of method and apparatus using Conditional Access Module network data

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