CN1355997A - Method and system for locating-control channel and data transport steam within signal received by set-top box from cable TV. system - Google Patents
Method and system for locating-control channel and data transport steam within signal received by set-top box from cable TV. system Download PDFInfo
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- CN1355997A CN1355997A CN 00808913 CN00808913A CN1355997A CN 1355997 A CN1355997 A CN 1355997A CN 00808913 CN00808913 CN 00808913 CN 00808913 A CN00808913 A CN 00808913A CN 1355997 A CN1355997 A CN 1355997A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
- H04N21/4348—Demultiplexing of additional data and video streams
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- G—PHYSICS
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- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
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Abstract
This method and system allows a set-top terminal to be connected to a cable television system and automatically locate the control channel or channels used by the cable system operator to transmit data, instructions or programming to the population of set-top terminals. The set-top terminal begins with a table of possible frequencies or a frequency range at which a control channel may be transmitted by the cable system operator. The set-top terminal then successively tunes those frequencies until one or more control channels are located. The set-top terminal may also match a platform identifier in the terminal with a platform identifier in the control channel's data stream to confirm that the control channel is appropriate for the terminal.
Description
Related application
The application requires priority with following U.S. Provisional Patent Application formerly, and name is called " the hardware and software initialization and upgrading management system and the method that are used for the advanced set top box of cable television system ", and series number is application on April 21st, 60/130328,1999.
Invention field
The present invention relates to install top set terminal and the software in this top set terminal of upgrading or the field of hardware with the initializing cable television system.Specifically, the present invention relates to that the top set terminal is connected to cable television system and with the field of this top set terminal positioning control channel, this control channel be on cable television system, broadcast and can receive data, instruction and download by its top set terminal and programme.
Background of invention
In general cable television system, the user is provided with set top box or terminal.The top set terminal is that a kind of being used for connects user's TV and may be the electronics compartment of another electronic equipment with cable network.Set top box is connected to cable network by coaxial wall outlet (wall outlet) usually.
Set top box is a computer in essence, and its programmed process is from the signal of cable network, so that provide cable service to the user.These services from CNN generally comprise the visit to some television channels, and may be EPGs.The surcharge channel also can be provided for the user with additional cost.Paying is watched project and is required video pictures also to may be provided on the cable network.Set top box is programmed provides these and other service to the user.
But the service of wired company does not need to be confined to provide TV programme.Now some wired company is just providing access to the Internet and Email with obtainable faster speed on than traditional phone line on their cable network.Can estimate that the services more and more many in future will be provided on the cable network, itself in addition comprise basic telephone service.Finally, each family or office can have the single connection that all electronic data are served by cable network.
When new top set terminal was added to cable network, it must carry out initialization.Be initialization top set terminal, this terminal must provide programming, this programming be allow it in the private wire network network that is connected, to work and the service that provides the user to pay thus desired, this comprises physically and the top set terminal is connected to wired system so that this terminal receives from the signal of wired system and programming top set terminal with identification and tuning from the control channel in the signal of wired system.This top set terminal receives the instruction and data that is sent by the wired system operating personnel on this control channel.Head end is this device, and from this device, the cable network operating personnel are broadcast television signal and the service that other is provided on cable network.
In addition, because the development of the cable network and the service that provides, so the top set terminal must develop into and all services of cable network can be offered the user.The development of this set top box will mainly comprise the programming of set top box or have the change that reinitializes.By the soft or hardware of upgrading set top box, box can be made into along with the development of cable network more effectively finishes or provides new service.For the programming of existing set top box group in new top set terminal of initialization and the upgrading cable network, preferably the programming of necessity is transferred to these set top boxs by cable network itself.Otherwise the technical staff must visit each user to install or these set top boxs of upgrading.This on-the-spot installation and upgrade is high cost significantly.Control channel or channel also are used for from head end programming being directly downloaded to these set top boxs.
But, by with programming the variety of issue that interrelates with installation, initialization and these set top boxs of upgrading being arranged from head end broadcast data on one or more control channels.For example, different wired systems may use different frequencies to transmit their control channel.If use to surpass a control channel, then control channel configuration in addition may be from the system to the system and change.As a result, each wired system must specifically be programmed each set top box of being installed with tuning and use the particular arrangement of the control channel of working in this system.These operating personnel to wired system are obvious high costs, and have stoped the top set terminal manufacturer that spendable top set terminal is provided.
As a result, need a kind of method and system in this area, it allows the top set terminal automatically to discern the control channel configuration of the connected cable television system of this top set terminal.Also need a kind of method and system in this area, it allows the top set terminal automatically to discern and download from suitable programmed and the data of controlling channel or channel.
Summary of the invention
The objective of the invention is to satisfy above-mentioned needs etc.Specifically, the purpose of this invention is to provide the method and system that a kind of control channel that allows the top set terminal automatically to discern the connected cable television system of this top set terminal disposes.Another object of the present invention provides a kind of top set terminal that allows and automatically discerns and download from control channel or the suitable programmed of channel and the method and system of data.
Other purpose of the present invention, advantage and novel feature will propose in the following description, perhaps by reading these materials or putting into practice the present invention and can know that objects and advantages of the present invention can realize by the device of quoting in the claims by those skilled in the art.
In order to realize above-mentioned and other purpose, the present invention can embody and be described as a kind of method, by the frequency meter that can be transmitted according to the control channel, utilize top set terminal order ground tuned frequency to be received by the top set terminal up to the control channel, it automatically locatees the control channel of the top set terminal that is connected to cable television system.This method can also comprise: after the first control channel of location, according to frequency meter, consecutive order ground tuned frequency is till the second control channel is received.
For suitable programming is provided for set top box, method of the present invention can also comprise: be complementary by the land identification symbol in land identification symbol that will be stored in the top set terminal and the download localization message that receives through the control channel, identification is from the code target by the top set terminal downloads of being used in the control channel data transport stream.Download localization message and be defined in the data transmission stream where can obtain the special code target.The land identification symbol is exclusively used in the structure and the power of top set terminal.Preferably, downloading localization message is entitlement management message.
This method comprises continuously: collect the PID1 bag from the data transmission stream of control channel, and therefrom extract second table of regulation bag identifier, this bag identifier is a plurality of download localization messages that are used for transmitting on data transmission stream.Show by second in the memory, by control channel according to second table, top set terminal order ground obtains a plurality of download localization messages, and therefrom extract the land identification symbol, till find downloading localization message, this downloads localization message has the land identification that is complementary with land identification symbol in the top set terminal storage and accords with.
Then, the top set terminal obtains locator data from download localization message, and this downloads localization message has the land identification that is complementary with land identification symbol in the top set terminal storage and accords with.Where this locator data can obtain the special code target if being defined in the data transmission stream.Afterwards, the top set terminal downloads is by the special code target from the locator data regulation of downloading localization message, and this downloads localization message has the land identification that is complementary with land identification symbol in the top set terminal storage and accords with.
The present invention also comprises the necessary hardware that is used to realize said method.For example, the system that is used for automatically locating the control channel of the top set terminal that is connected to cable television system according to the present invention can comprise the top set terminal that is connected to cable television system; With in this top set terminal, be used for the device that comes tuned frequency sequentially to be received by the top set terminal according to the frequency meter that can transmit the control channel thereon up to the control channel.
At last, the present invention also comprises the method for making the top set terminal that is used in cable television system, and here the top set terminal automatically is positioned with the control channel of cable TV system.This method of the present invention preferably includes: the top set terminal with the frequency meter that can transmit the control channel thereon is provided; Tuned frequency is received by the top set terminal up to the control channel to come sequentially according to the frequency meter that can transmit the control channel thereon with this top set terminal of programming.
The simple declaration of accompanying drawing
Description of drawings the present invention and be the part of specification.With following explanation, accompanying drawing is showed and has been explained principle of the present invention.
Fig. 1 is the block diagram of three different phases of expression, and at this, during initialization process of the present invention, different programming bags is controlled this top set terminal;
Fig. 2 is used in the various memory devices of set top box and the block diagram of some code targets according to the present invention;
Fig. 3 is the flow chart of expression the inventive method, and this method is used for being positioned with the control channel of cable TV system and the code target that identification will be downloaded, and they are to be exclusively used in structure and the power of downloading the top set terminal.
Detailed description of the present invention
The present invention solve the top set terminal is connected to cable television system and make this terminal recognition and be tuned on the cable television system control channel by system operators broadcasting or channel in the problem that comprises.System operators can use this control channel or channel to give the top set terminal that is connected to this wired system with transfer instruction, data or programming.
According to cardinal principle, the object of the invention provides the top set terminal structure that includes resident guidance code target.As shown in Figure 3, guidance code target (302) resides in the top set terminal (300), preferably in read-only memory (ROM) (301), and execution automatically and initialization or reinitialize this top set terminal.Guidance code will be preferably by the central processing unit of top set terminal (321) and automatically carry out.The execution of guidance code can be triggered and be connected to this top set terminal followed by power supply.In addition, before the execution of guidance code was triggered, the present invention can ask to connect cable TV signal or the data transmission stream (322) from wired system.In case guidance code is carried out, with regard to the further action that does not call request and to carry out by user/setter.And, at head end with just do not asking specific mutual between the top set terminal in initialization or guiding.
Will describe in detail as following, guidance code of the present invention (302) will find automatically that the control channel or the channel that are used by system operators give this top set set of terminal with transmission data, message and/or programming.Guidance code of the present invention can also locate and download from appropriate software code target or target by top set terminal needs in the data transmission stream of control channel or channel.The transport stream (322) that guidance code (302) can locate, discerns and download from the cable television system headend goes up by the programming of asking in multiplexed potential many code targets.Through the code identification symbol (320) of inner ROM, flash protection or other nonvolatile storage, the hardware that guidance code (302) is discerned its resident top set terminal (300) constitutes.This identifier (320) is matched with from the target of transport stream (322) and downloads the value of carrying in the localization message, is exclusively used in the target of the top set terminal (300) of wherein having resided this guidance code (302) to guarantee this guidance code (302) acquisition and download.
On the function, guidance code of the present invention will be discerned suitable control channel frequency, find the data packet stream in this control channel, identification and download are from the correct target in the target of transport stream, the checking code of downloading is to be authorized to and not have mistake, and the startup code of downloading in the direct help that does not have the technical staff or under from the intervention of head end.Here employed term " guidance code " comprises finishes the needed minimum code of this function.
According to the present invention, two distinct aspects of programming set top box are arranged in essence.First is the initial programming of set top box.Second is to upgrade this set top box programming or reinitialize after this box is come into operation.The initial programming of set top box has normally been finished by the wired system operating personnel after manufacturer buys there at this set top box.Because each cable network was designed and made up by different service provider in the different epoch, each cable network can have the different code target of different designs, structure and use.In addition, each system might have the inhomogeneous top set terminal of installing at different times and have different structures and power.And the special services that is provided can change in cable network.
Therefore, in order to make set top box be adapted in the specific environment of ISP's wired system, work and the current particular service set that provides by this special service supplier is provided, therefore each set top box must be programmed or " initialization ", and it comprises can locate control channel or the channel that is used by cable television system.In addition, after this each terminal should be played the best use of with continuation by periodicity emphasis new program or upgrading in the cable television system that is comprised.When the programming of each top set terminal was changed, fresh code must be structure and the power that is exclusively used in this terminal.
To illustrate now according to the programming or the reprogramming of top set terminal of the present invention and handle.For the top set terminal is initialised, promptly accept and utilize the initial programming of its reception, its must have instruction its how to accept and use this initial programming some programme substantially.Should programme substantially in the present invention's style of writing be called guidance code.As above-mentioned, guidance code is resident top set terminal permanent memory that is loaded in factory and the computer code that is preferably read-only memory, and its in a single day to be used in terminal be can not be reformed.
As shown in Figure 1, in the different phase of terminal initialization according to the present invention and operation, the programming that moves or control this top set terminal has three generic hierarchicals or classification.With reference to figure 1, the first kind of code is guidance code (1).In this guidance code of operation (1), the top set terminal can not offer the user with any service.The function (2) of guidance code (1) is the data transmission stream that search receives from headend, and to locate, to obtain and begin the execution of basic platform code (3), this basic platform code (3) is the following one deck or the class of programming.
Guidance code (1) is designed to verify the basic platform code after the basic platform code is downloaded.When it sends basic platform target (3) at every turn, guidance code (1) will preferably be verified this basic platform code again.When carrying out basic platform target (3), the execution of guidance code (1) is terminated, and the control of top set terminal is delivered to basic platform target (3).
Basic platform target (3) can be loaded by factory.But under principle of the present invention, during terminal initialization, basic platform target (3) preferably is transferred to the top set terminal from wired head end.These operating personnel that allow wire system customize basic platform code (3) to carry out optimum operation on the specific wired system that adopts this top set terminal.Preferably, transmit on the wireline equipment of basic platform code (3) (OOB) transport stream outside band.But basic platform code (3) transmission on band inner control channel is within the scope of the invention.
Basic platform code (3) has two functions.First function of basic platform code (3) provides and allows the user to watch the fundamental right of use from the TV of cable television system signal.Second function is that next category code target of control is the download (5) of destination OS (O/S) and resident applications (6).When allowing the user to watch TV, basic platform code (3) is not generally supported any additional function of top set terminal.But basic platform code (3) can obtain, verifies, authorizes and carry out the target (for example O/S) (5) of last the 3rd class programming.
The 3rd class of programming is that operating system and resident applications (6) provide from the obtainable additional top set termination function of wired system.Operating system (O/S) generally is from all being authorized to the third party that top set terminal power conducts interviews by the resident applications (WinCE of Microsoft for example
TM) code.The additional embedded code module that operating system is general uses the manufacturer by the top set terminal to provide, it makes the special hardware of operating system and this top set terminal carry out interface, makes operating system and specific top set terminalization.
Resident applications is the computer program of operation top set terminal under operating system.Resident applications is worked so that other power of the top set terminal except that watching TV to be provided with operating system.Local group (native suite) is the particular group of software application, comprises operating system and possible various resident applications, and it provides the predetermined function of top set terminal.The discrete cell of local group is determined by system operators.
As illustrated in fig. 1 and 2, guidance code (1,302) is preferably by factory and is loaded in the read-only memory (ROM) of top set terminal, and is performed immediately when AC power supplies is provided for the top set terminal.In addition, can to respond be that the reset signal (4) that system operators receives there is performed from head end for example to guidance code.This allows in office what is the need for of system operators to reinitialize this top set terminal when wanting.
Reset signal (4) is preferably the execution that is received and start guidance code (1) by basic platform code (3), if operating system and resident applications are being moved, this reset signal (4) stops its execution then.In addition, reset signal (4) can make basic platform code (3) stop and reload local group (6) rather than execution guidance code (1).
As above-mentioned, no matter when to carry out, guidance code (1) obtains and loads basic platform code (2).The basic platform code can be provided for the top set terminal on the cable network or can be loaded by factory with guidance code in addition from head end.Guidance code (1) for example will be downloaded from the basic platform code (3) on out of band channel of head end, if perhaps the basic platform code is loaded by factory, then be identified in the basic platform code (3) in the memory.Guidance code (1) is verified the basic platform code (3) from any information source that obtains it, and carries out this basic platform code (3) then.
Basic platform code (3) obtains operating system then, is preferably other target of local group (6).Operating system and other target are that the head end from the cable network is downloaded.When response is at first carried out from the initial message (4) of system operators or in operation, basic platform code (3) will obtain operating system and other target.Initial message (4) may be provided on the cable network.Then, group is acquired, authorizes and when verifying when this locality, executive operating system and resident applications (6).
Being positioned with the control channel of cable TV system or the process of channel will describe with reference to figure 2 and 3.As shown in Figure 2, the processor (321) of top set terminal (300) control tuner (323) is with tuning control channel, and on this control channel, data and programming are broadcast to the top set set of terminal by head end.
Set top box (300) will have head end can be just at the table of the carrier frequency of controlling channel of broadcast data and programming.This shows the preferably part of guidance code of the present invention.As shown in Figure 3, method of the present invention can start from tuning top set terminal of listing in the first control channel of this table (400).Frequency tuning that can broadcast the control channel thereon that provides in his-and-hers watches is provided for this.Tuner (323) tuning and the locking this frequency after, processor (321) will determine whether it is receiving the control channel (401) from head end on this frequency.If do not control channel is to receive on this frequency, and processor (321) will be controlled tuner (323) may frequency (400) with the next one of tuning control channel.Till this will proceed to control channel will be positioned.Stride across a frequency range or cross a frequency range finding that the control channel also is possible, it is with to stride across frequency meter opposite.
In case the control channel is received, if guidance code just in initialization top set terminal, then guidance code is with the bag (402) that identifies with PID1 of on this control channel transport stream of beginning to collect.PID1 is the conditional access message that is used for mpeg standard.The bag of PID1 will be provided at the guidance code that moves on the top set terminal, and it has the conditional access table (CAT) of EMM specifier, and each EMM specifier will be identified in the PID (403,404) of one group of bag on the transport stream that constitutes EMM stream (entitlement management message).
Guidance code will begin and begin to load the bag (405) of the EMM PID mark that is given by first EMM specifier from using of transport stream with first EMM specifier.The EMMPID bag that is obtained will comprise guidance code message of the present invention, and it comprises the land identification symbol according to this.Therefore, entitlement management message will be extracted (406) from the EMM PID that obtained bag, will be extracted (407) from the land identification symbol of EMM.
As shown in Figure 3, be loaded in guidance code (302) in the top set terminal by factory and also will comprise land identification symbol (320), it is type, structure and the power that is exclusively used in the resident terminal (300) of guidance code wherein.When operation, guidance code the land identification symbol that will provide in factory will be provided be accorded be complementary (408,409) with land identification from the guidance code message of EMM PID bag.
If find not match, guidance code will be selected next EMM specifier in CAT, and accord with the bag (410,405) of verification by the EMMPID of the EMM specifier sign of this guidance code message with the coupling land identification.This proceeds till the land identification symbol that finds coupling.Searching for a plurality of EMM PID simultaneously is possible reduce EMM to confirm the time and to find coupling guidance code message required time.
If the coupling of this land identification symbol is verified and do not found to all EMM specifiers among the CAT of PID1, then guidance code will be sought on another carrier frequency another and control channel (410,400) by turning back to the carrier frequency counting rate meter.When another frequency with control channel is identified and locks, guidance code will extract PID1 and repeat above-mentioned process.This proceeds till the guidance code message of finding to have the land identification symbol that is matched with guidance code land identification symbol.
When guidance code is found to have the guidance code message of coupling land identification symbol, the top set terminal be tuned to be exclusively used in the control channel of its attribute and power.Then, guidance code can be extracted in the download PID (DLPID) (411) that stipulates in the guidance code message with this coupling land identification symbol.Download PID (DLPID) and be the identifier that for example is used to carry for the bag of the code target of basic platform code target, it is suitable for top set terminal (300) type with land identification symbol.Then, by obtaining bag with DLPID and the data in these bags being assembled into the basic platform code again, guidance code can be downloaded basic platform code or other code targets.
Just as skilled in the art to understand, land identification of the present invention symbol (320) can be used to check and the object code of any kind of the terminal compatibility of resident this identifier (320) wherein.The present invention is not limited to use identifier (320) by guidance code (320) to locate and to discern suitable basic platform code.Land identification of the present invention symbol (320) for example can be used in the same manner described above to discern by the basic platform code and obtain by the operating system target of download top set Terminal Design.Land identification symbol (320) also can be used to discern other unit of local group, i.e. resident applications, and they are to be exclusively used in the top set terminal of downloading.
In addition, land identification symbol of the present invention (320) does not need to be incorporated into guidance code (302).On the contrary, land identification symbol (320) can be deposited in top set terminal (300) Anywhere, and here it can be requested it is used to the appropriate codes target downloaded with identification executive program institute access.
Fig. 2 represents four memory cells according to top set terminal of the present invention (300).ROM unit (ROM) (301) comprises guidance code (302).Flashing storage unit (303) comprises basic platform code (304) and O/S target (306).Except that these targets, can obtain additional flash memory (305).Two stack pointers (307,308) are that basic platform code (304,308) and O/S (306,307) specify the absolute position in flash memory (303).It is important that these two targets can be positioned in the flash memory (303) utterly.
Nonvolatile memery unit (RAM) (310) preferably has two management and non-management section.Basic platform code (304) can stored parameter and other data in any part of Nonvolatile memery unit (310).
At last, provide random access memory unit (RAM) (309).Such as the basic platform code, the download target of O/S etc. can be stored among the RAM (309) till being verified.Authorize and checking in case successfully finished, these targets can be passed to flashing storage unit (303) to be used for longer-term storage from RAM (309).
Above stated specification only is explanation the present invention.It is not exhaustive or limits the present invention to disclosed any accurate form.According to above-mentioned guidance, various improvement and change are possible.
For best illustrated principle of the present invention and its practical application, select and illustrated preferred embodiment.Above stated specification is to wish to make others skilled in the art can utilize the present invention better as various embodiment that are suitable for desired special applications and various improvement.
Claims (17)
- One kind automatically the location be connected to the method for control channel of the top set terminal of cable television system, this method comprises: according to table or frequency range of the control channel frequency that can be transmitted, utilize tuning these frequencies in described top set terminal order ground till the control channel is received by described top set terminal.
- 2. the method for claim 1 also comprises: after the first control channel of location, according to described frequency meter or frequency range, tuning these frequencies in consecutive order ground up to second control channel and be received till.
- 3. the method for claim 1, also comprise: be complementary by the land identification symbol in land identification symbol that will be stored in described top set terminal and the download localization message that receives through described control channel, identification is from the code target by described top set terminal downloads of being used in the described control channel data transport stream, download localization message and be defined in the described data transmission stream where can obtain the special code target, wherein said land identification symbol is exclusively used in the described structure and the power of described top set terminal.
- 4. the method for claim 3, wherein, described download localization message is an entitlement management message.
- 5. the method for claim 1, also comprise: from the described data transmission stream of described control channel, collect the PID1 bag, and therefrom extract second table of regulation bag identifier, this bag identifier is to be used for a plurality of download localization messages of transmitting on described data transmission stream.
- 6. the method for claim 5, also comprise: by described control channel according to described second table, sequentially obtain described a plurality of download localization message, and therefrom extract the land identification symbol, till find downloading localization message, this downloads localization message has the land identification that is complementary with land identification symbol in described top set terminal storage and accords with.
- 7. the method for claim 6, also comprise: from described download localization message, obtain locator data, this download localization message has the land identification symbol that is complementary with described land identification symbol in described top set terminal storage, wherein, described locator data is defined in the described data transmission stream where can obtain the special code target.
- 8. the method for claim 7, also comprise: will download to described top set terminal by the described special code target of this described locator data regulation from described download localization message, this downloads localization message has the land identification that is complementary with described land identification symbol in described top set terminal storage and accords with.
- One kind automatically the location be connected to the system of control channel of the top set terminal of cable television system, this system comprises:Be connected to the top set terminal of cable television system; WithIn described top set terminal, be used for table or the device that frequency range comes sequentially tuning these frequencies to be received by described top set terminal up to the control channel according to the frequency that can transmit the control channel thereon.
- 10. the system of claim 9 also comprises: after the first control channel of location, be used for according to described frequency meter or frequency range the device of tuning these frequencies in consecutive order ground till the second control channel is received.
- 11. the system of claim 9, also comprise: be used for being complementary by the land identification symbol of land identification symbol that will be stored in described top set terminal and the download localization message that receives through described control channel, identification is from the device by the code target of described top set terminal downloads of being used in the described control channel data transport stream, download localization message and be defined in the described data transmission stream where can obtain the special code target, wherein said land identification symbol is exclusively used in the described structure and the power of described top set terminal.
- 12. the system of claim 11, wherein, described download localization message is an entitlement management message.
- 13. the system of claim 9, also comprise: be used for collecting the PID1 bag from the described data transmission stream of described control channel, and therefrom extract the device of second table of regulation bag identifier, this bag identifier is to be used for a plurality of download localization messages of transmitting on described data transmission stream.
- 14. the system of claim 13, also comprise: be used for by described control channel according to described second table, sequentially obtain described a plurality of download localization message, and therefrom extract the land identification symbol, device till find downloading localization message, this downloads localization message have the land identification that is complementary with land identification symbol in described top set terminal storage and accord with.
- 15. the system of claim 14, also comprise: the device that is used for obtaining locator data from described download localization message, this download localization message has the land identification symbol that is complementary with described land identification symbol in described top set terminal storage, wherein, described locator data is defined in the described data transmission stream where can obtain the special code target.
- 16. the system of claim 15, also comprise: be used for will being downloaded to the device of described top set terminal by the described special code target of this described locator data regulation from described download localization message, this downloads localization message has the land identification that is complementary with described land identification symbol in described top set terminal storage and accords with.
- 17. a manufacturing is used in the method for the top set terminal of cable television system, here the top set terminal is automatically located the control channel of described cable television system, and this method comprises:Provide and have the table of frequency that can transmit the control channel thereon or the described top set terminal of a frequency range; WithThe described top set terminal of programming comes sequentially tuning these frequencies till the control channel is received by described top set terminal with described table or a frequency range according to the frequency that can transmit the control channel thereon.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13032899P | 1999-04-21 | 1999-04-21 | |
| US60/130328 | 1999-04-21 | ||
| US54444700A | 2000-04-07 | 2000-04-07 | |
| US09/544447 | 2000-04-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1355997A true CN1355997A (en) | 2002-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00808913 Pending CN1355997A (en) | 1999-04-21 | 2000-04-14 | Method and system for locating-control channel and data transport steam within signal received by set-top box from cable TV. system |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1181824A1 (en) |
| CN (1) | CN1355997A (en) |
| AU (1) | AU4241500A (en) |
| CA (1) | CA2371144A1 (en) |
| TW (1) | TW503662B (en) |
| WO (1) | WO2000064179A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031292A1 (en) * | 2006-09-13 | 2008-03-20 | Shenzhen Excelstor Technology Ltd. | Encrypting method for hard disk in set top box of cable television system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7069578B1 (en) * | 2000-02-04 | 2006-06-27 | Scientific-Atlanta, Inc. | Settop cable television control device and method including bootloader software and code version table for maintaining and updating settop receiver operating system software |
| GB0027812D0 (en) * | 2000-11-15 | 2000-12-27 | Pace Micro Tech Plc | Broadcast data receiver |
| US7500092B2 (en) | 2003-01-17 | 2009-03-03 | International Business Machines Corporation | Hardware abstraction for set-top box operating systems |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440632A (en) * | 1992-12-02 | 1995-08-08 | Scientific-Atlanta, Inc. | Reprogrammable subscriber terminal |
| US5420866A (en) * | 1994-03-29 | 1995-05-30 | Scientific-Atlanta, Inc. | Methods for providing conditional access information to decoders in a packet-based multiplexed communications system |
| US5666293A (en) * | 1994-05-27 | 1997-09-09 | Bell Atlantic Network Services, Inc. | Downloading operating system software through a broadcast channel |
| US5734589A (en) * | 1995-01-31 | 1998-03-31 | Bell Atlantic Network Services, Inc. | Digital entertainment terminal with channel mapping |
| US5852290A (en) * | 1995-08-04 | 1998-12-22 | Thomson Consumer Electronics, Inc. | Smart-card based access control system with improved security |
| US5951639A (en) * | 1996-02-14 | 1999-09-14 | Powertv, Inc. | Multicast downloading of software and data modules and their compatibility requirements |
| JP3567696B2 (en) * | 1997-09-24 | 2004-09-22 | 松下電器産業株式会社 | Software download system |
| EP0907285A1 (en) * | 1997-10-03 | 1999-04-07 | CANAL+ Société Anonyme | Downloading data |
-
2000
- 2000-04-14 EP EP00922189A patent/EP1181824A1/en not_active Withdrawn
- 2000-04-14 WO PCT/US2000/010016 patent/WO2000064179A1/en not_active Application Discontinuation
- 2000-04-14 AU AU42415/00A patent/AU4241500A/en not_active Abandoned
- 2000-04-14 CA CA002371144A patent/CA2371144A1/en not_active Abandoned
- 2000-04-14 CN CN 00808913 patent/CN1355997A/en active Pending
- 2000-06-15 TW TW89107488A patent/TW503662B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008031292A1 (en) * | 2006-09-13 | 2008-03-20 | Shenzhen Excelstor Technology Ltd. | Encrypting method for hard disk in set top box of cable television system |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2371144A1 (en) | 2000-10-26 |
| EP1181824A1 (en) | 2002-02-27 |
| TW503662B (en) | 2002-09-21 |
| AU4241500A (en) | 2000-11-02 |
| WO2000064179A1 (en) | 2000-10-26 |
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