CN109587541A - A kind of digital television business processing method, device and television terminal - Google Patents
A kind of digital television business processing method, device and television terminal Download PDFInfo
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- CN109587541A CN109587541A CN201811523468.3A CN201811523468A CN109587541A CN 109587541 A CN109587541 A CN 109587541A CN 201811523468 A CN201811523468 A CN 201811523468A CN 109587541 A CN109587541 A CN 109587541A
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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
- H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
- H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
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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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/458—Scheduling content for creating a personalised stream, e.g. by combining a locally stored advertisement with an incoming stream; Updating operations, e.g. for OS modules ; time-related management operations
-
- 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
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
Abstract
The invention discloses a kind of digital television business processing methods, which comprises receives the request of playing digital content；The code stream DTV time of frequency point where parsing the digital content, and the network N TP time is requested to server；If judging, the difference of the code stream DTV time and the network N TP time exceed preset threshold, and accumulated time of the difference beyond preset threshold is more than fault-tolerant threshold range, then uses the network N TP time updating system time and back up to the code stream DTV time；Later, the code stream DTV time based on backup carries out code stream DTV business, and carries out network service based on updated system time.Prior art digital television system is solved during using digital rights certificate management digital content, due to going to update system time only with reference to single code stream code stream DTV time service, so that if will lead to digital rights certificate validity period after code stream DTV time anomaly determines the problem of failing.
Description
Technical field
The present invention relates to software systems field more particularly to a kind of digital television business processing method, device and TV are whole
End.
Background technique
DRM(Data Rights Management), be usually translated into Digital Property protection or Digital Property management or
Digital copyright management is one and is directed to the safe practice that video uses for preferably protection copyright.Digital content and tradition are in kind
The maximum of product is different, is to replicate and propagate with can be close to zero cost.If it is, being ready with regard to nobody to obtain number
Word content and pay, to destroy entire Digital Content Industry chain.Therefore for present and following Digital Content Industry,
One critical issue be how by technological means protect digital content from bootlegging, propagate.
The core of DRM technology is mainly two: first is that digital encryption；Second is that permission controls.The former prevents digital content
Illegal propagation；Can the latter then limits the mode using digital content, such as service life, could print, copy from computer
On to mobile phone etc., these information are included in digital rights certificate.The judgement of validity period, relies on terminal in digital rights certificate
System time, when terminal system time anomaly, it is possible to which the judgement that will lead to digital certificate validity period is abnormal, and it is legal to cause
The certificate of (in validity period), which is also determined validity period, to be terminated, to not be available digital content.
In current digital television system, code stream DTV time service has high priority as main system time reference,
Its time information is included in digit broadcasting system server-side and is distributed in the code stream of terminal, and the content that server-side provides is passed in network
Output code flow may be caused to occur when defeated due to malicious interference or transmission fault etc. abnormal, for example, if server-side is given
Abnormal temporal information is added in code stream, will lead to corresponding terminal and also takes abnormal temporal information and update the system for arriving oneself
Time, to further influence the judgement of digital certificate validity period.
For example, digital content provider one of of the Netflix as North America mainstream will authorize the service life of client
(the payment viewing of a such as term and about 2018-12-17 to 2019-12-17) encapsulation pass to client in the certificate, client
After DRM analyzing component certificate and acquisition this material time data of one term, the relevant payment content of Netflix is played every time
When, whether all judgement present system times already exceed 2019-12-17, normal to execute playing request if be less than.Such as
Fruit is more than then to determine certificate expired, does not allow to play.But one of current DRM assembly function, it is to guarantee that validity period of certificate can only
Successively decreasing cannot be incremented by, this can exclude the exception of code stream DTV time service rollback, but cannot exclude the different of code stream DTV time service wash-ahead
Often.When after code stream DTV time service exception wash-ahead to validity period of certificate, attempt to obtain correctly to terminal system without fault tolerant mechanism
Time can directly result in certificate expired and not be available digital content.
Summary of the invention
The embodiment of the present application solves prior art number by providing a kind for the treatment of method and apparatus of digital television business
Word television system is during using digital rights certificate management digital content, due to going more only with reference to single code stream DTV time service
The new system time, so that code stream DTV time anomaly causes digital rights certificate validity period to determine failure, so that network service
Can not normal play the problem of.
In a first aspect, the embodiment of the present application provides a kind of digital television business processing method, which comprises
Receive the request of playing digital content；
The code stream DTV time of frequency point where parsing digital content, and the network N TP time is requested to server；
If judging, the difference of code stream DTV time and network N TP time exceed preset threshold, and difference exceeds the accumulation of preset threshold
Time is more than fault-tolerant threshold range, then uses the network N TP time updating system time and back up to the code stream DTV time；
The code stream DTV time based on backup carries out DTV business, and carries out network service based on updated system time.
Optionally, the method also includes:
If judging, the difference of code stream DTV time and network N TP time exceed preset threshold, and the difference is beyond preset threshold
Accumulated time is less than fault-tolerant threshold range；Then, triggering executes again after preset time:
It parses the code stream DTV time of digital content place frequency point and requests the network N TP time to server；
Judge whether code stream DTV time and the difference of network N TP time exceed preset threshold, and the accumulation beyond preset threshold
Whether the time is in fault-tolerant threshold range.
Optionally, the method also includes:
If judging, the difference of code stream DTV time and network N TP time without departing from preset threshold, are updated using the code stream DTV time
System time；
DTV business and network service are carried out based on updated system time.
Optionally, described to include: based on the progress network service of updated system time
Judge whether updated system time exceeds the validity period of digital rights certificate；
If it is not, then allowing to play the network service.
Second aspect, the embodiment of the present application provide a kind of digital television business processing unit, and described device includes:
Receiving unit, for receiving the request of playing digital content；
Time acquisition unit requests network for the code stream DTV time of frequency point where parsing the digital content, and to server
The NTP time；
Judging unit, for judging whether the code stream DTV time and the difference of the network N TP time exceed preset threshold,
And judge accumulated time of the difference beyond preset threshold whether in fault-tolerant threshold range；
Execution unit, if for judging that the difference of the code stream DTV time and the network N TP time exceed preset threshold, and
Accumulated time of the difference beyond preset threshold is more than fault-tolerant threshold range, then uses the network N TP time updating system
Time simultaneously backs up the code stream DTV time；
Business unit is carried out DTV business for the code stream DTV time based on backup, and is carried out based on updated system time
Network service.
The third aspect, the embodiment of the present application provide a kind of television terminal, and the television terminal includes:
Processor；
Memory；And
Computer program；
Wherein, the computer program is stored in the memory, and is configured as being executed by the processor, described
Computer program includes the instruction for executing any one of above-mentioned first aspect the method.
Fourth aspect, the embodiment of the present application provide a kind of computer readable storage medium, which is characterized in that the calculating
Machine readable storage medium storing program for executing is stored with computer instruction, and the computer instruction, which is executed by processor in the above-mentioned first aspect of realization, appoints
Method described in one.
As can be seen from the above embodiments, compared with prior art, the present invention television terminal receives the request of playing digital content
When, the code stream code stream DTV time of frequency point where parsing the digital content, and the network N TP time is requested to server；If judgement
The difference of the code stream DTV time and the network N TP time exceed preset threshold, and the difference is beyond the tired of preset threshold
Product the time be more than fault-tolerant threshold range, then using the network N TP time updating system time and to the code stream DTV time into
Row backup；Finally the code stream DTV time based on backup carries out DTV business, and carries out network industry based on updated system time
Business.In this way while guaranteeing that DTV business operates normally, it ensure that network service can be using correct in digital copyright authentication
Network time authenticated, so as to avoid the prior art using the code stream DTV time as system time when due to code stream quilt
Digital rights certificate is arrived in code stream DTV time service wash-ahead caused by code stream DTV time anomaly caused by malicious interference or transmission abnormality
The caused forbidden problem of network service after validity period.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is a kind of flow chart of digital television business processing method described in the embodiment of the present application；
Fig. 2 is a kind of flow chart of digital television business processing method described in the embodiment of the present application；
A kind of schematic diagram of digital television business processing unit described in Fig. 3 the embodiment of the present application；
Fig. 4 is a kind of structural schematic diagram of television terminal described in the embodiment of the present application.
Specific embodiment
The executing subject of digital television business processing method provided by the embodiment of the present application can be digital television business
Processing unit, or the terminal for executing above-mentioned digital television business processing method.Specifically, the terminal can be intelligent electricity
Depending on, terminal devices such as computer, the application to the type of the equipment with no restriction.The case where being described below not special declaration
Under, it is described taking a smart TV as an example, described scheme is equally applicable to other types of equipment.
In the prior art, the code stream DTV time compares network N TP time priority usually with higher, therefore existing skill
Art generallys use the update for the code stream DTV time carrying out system time.If when user requests the digital content of broadcasting DRM control
When, pass through the transmission code stream data of frequency point where parsing digital content, available code stream DTV time, if when code stream DTV
Between it is different from system time, then in the prior art, it will usually immediately use the code stream DTV time updating system time.Therefore, if
The system time of terminal occurs abnormal, it is likely that the Effective judgement that will lead to digital rights certificate is abnormal, causes legal (to have
In the effect phase) certificate be also judged as validity period and terminate, to not be available digital content.
Specifically, for the digital content of DRM control, its particularity is, once system time is abnormal, for example, currently just
The normal time is 9:00 in morning on December 28th, 2017；But the code stream DTV time anomaly in code stream can be with wash-ahead to the year two thousand twenty
Morning December 1 9:00, if having updated system time according to this code stream code stream DTV time, the DRM component meeting in television terminal
It records the system time and has arrived at the year two thousand twenty 9:00 in morning December 1, since one of DRM assembly function is ensuring that certificate has
The effect phase, which can only successively decrease, to be incremented by, that is, user oneself is avoided to change system time and make certificate continuously effective, even if the later period is
The system time is adjusted to normal time, returns on December 28th, 2017, but DRM component still can be early using the year two thousand twenty December 1
Upper 9:00 is as the foundation for judging validity period of certificate.If the time has exceeded the validity period of digital rights certificate, even if
System time is back to normal, and digital rights certificate, which can also be determined validity period, to be terminated, to not be available digital content.Therefore urgently
A kind of method for processing business is needed, guarantees that code stream DTV business and network service can operate normally.
The application can pass through system time from 2 time source acquisition time this abilities using digital television system
When carrying out the judgement of digital rights certificate validity period, not only with reference to original code stream DTV time service, referring also to network N TP time service, only
In the case where the two time approximately uniform (in the error range of permission), just press the code stream DTV time updating system time, and
The validity period of certificate is determined based on updated system time；Otherwise, in the fault-tolerant threshold range of tolerable cumulative time,
Attempt periodically to reacquire the time, if system time restores normal (time service of i.e. 2 time sources is approximately uniform) after
It is continuous to refer to the code stream code stream DTV time updating system time, and the effective of digital rights certificate is determined based on correct system time
Phase can also continue to use related digital content under abnormal conditions of such user within the scope of certain time, and accumulative at this
In the fault-tolerant threshold range of time, the code stream DTV time of TV has an opportunity to restore normal；It is (super after exceeding the tolerable time
When), if still using the network N TP time updating system time without restoring normal, avoiding use compared with prior art
Because code stream DTV time anomaly causes not being available due to judging certificate expired by accident when the code stream DTV time carries out digital rights certificate certification
The problem of digital content, while DTV business is carried out using the code stream DTV time of backup, it ensure that the normal operation of DTV business.
The application can be realized in code stream DTV time and network N TP Time Inconsistency, and DTV business and network service can be just
It often carries out, and there is certain robustness on the basis of carrying out system time update based on the code stream DTV time.
In order to better understand the above technical scheme, being carried out below in conjunction with specific embodiment of the attached drawing to the application detailed
Explanation.It should be understood that the specific embodiments described herein are only used for describing and explaining the application, it is not used to limit
The application processed.
As shown in Figure 1, the embodiment of the present application provides a kind of method of digital television business processing, which comprises
S101 receives the request of playing digital content.
S102, the code stream DTV time of frequency point where parsing digital content simultaneously request the network N TP time to server.
S103, if judging, the difference of code stream DTV time and network N TP time exceed preset threshold, and difference is beyond default
The accumulated time of threshold value is more than fault-tolerant threshold range, then using the network N TP time updating system time and to the code stream
The DTV time is backed up.
S104, the code stream DTV time based on backup carries out DTV business, and carries out network based on updated system time
Business.
The application can pass through system time from 2 time source acquisition time this abilities using digital television system
When carrying out the judgement of digital rights certificate validity period, electricity is not worked as referring also to network N TP time service only with reference to original code stream DTV time service
When receiving the request of playing digital content depending on terminal, code stream DTV time of frequency point where parsing digital content and to service
Device requests the network N TP time, when the difference for judge code stream DTV time and network N TP time exceeds preset threshold and difference is more than
When the cumulative time of preset threshold is more than fault-tolerant threshold range, then network industry is used for using the network N TP time updating system time
The digital rights certificate of business authenticates, and backs up the code stream DTV time for DTV business.It is avoided compared with prior art using code stream
Number is not available since code stream DTV time anomaly leads to erroneous judgement certificate expired when the DTV time carries out digital rights certificate certification
The problem of word content, while code stream DTV business is carried out using the code stream DTV time of backup, it ensure that the normal of code stream DTV business
Operation.The application can be realized in code stream DTV time and network N TP Time Inconsistency, and DTV business and network service are equal
It can be normally carried out, and there is certain robustness on the basis of carrying out system time update based on the code stream DTV time.
As shown in Fig. 2, the embodiment of the present application provides a kind of method of digital television business processing, which comprises
S201 receives the request of playing digital content.
S202, the code stream DTV time of frequency point where parsing digital content simultaneously request the network N TP time to server.
After television terminal receives the request message of playing digital content, the code stream number of frequency point where parsing digital content
According to the code stream DTV time can be taken from bit stream data, for example, can pass through Time of Day table in digital TV field
(TDT) the code stream DTV time is got, it is the time that TDT, which is one of various businesses information (SI) table for including in MPEG-2 transmitting stream,
With the abbreviation of date table, for the system clock of more new terminal, in " digital video broadcasting Chinese business information specification " GY/Z
In 174-2001, TDT Time and Date Table TDT is mandatory provision, is then optional regulation there are one TOT Time Offset Table (TOT), passes through
TOT table can take the relevant information in the time zone where television terminal, in the prior art, obtain the technology of code stream DTV time
More mature, details are not described herein.
Network N TP is Network Time Protocol (Network Time Protocol), it is each meter in synchronizing network
The agreement of the time of calculation machine.Network N TP(Network Time Protocol, Network Time Protocol) it is for making in network
A kind of agreement that each computer time synchronizes.Its purposes is the clock of computer to be synchronized to UTC Universal Time Coordinated UTC, essence
For degree up to 0.1ms in local area network, its local precision most of on the internet can achieve 1-50ms.When network N TP
Between source be the universal time UTC(Universal Time Coordinated to be given the correct time by atomic clock, the world is coordinated
When).In the common terminal such as television equipment, due to not carrying GPS positioning module generally, network N TP obtains UTC's
Time source can mostly be that networking is obtained by server.
S203, judges whether code stream DTV time and the difference of network N TP time exceed preset threshold.
If so, thening follow the steps S204 to S207
If it is not, thening follow the steps S208 and step S209.
Whether S204 judges accumulated time of the difference beyond preset threshold in fault-tolerant threshold range.
If so, thening follow the steps S207；
If it is not, thening follow the steps S205 and step S206.
S205 using the network N TP time updating system time, and backs up the code stream DTV time.
S206, the code stream DTV time based on backup carry out DTV business, carry out network service based on system time.
Specifically, the code stream DTV time that DTV business obtains backup carries out DTV business；Network service obtains system time,
And be compared with the time limit of digital rights certificate, if system time is less than the validity period of digital rights certificate, allow
The digital content for playing DRM control, if it is not, then refusing to play.The wherein system time corresponding network NTP time.
S207 waits preset time.
After waiting preset time, step S201 to S209 is repeated.
S208 utilizes the code stream DTV time updating system time.
I.e. using the code stream DTV time as system time.
S209 carries out DTV business and network service based on system time.
Specifically, DTV business, which obtains system time, carries out DTV business；Network service obtain system time, and with number
The time limit of rights certificate is compared, if system time is less than the time limit of digital rights certificate, allows to play DRM
The digital content of control, if it is not, then refusing to play.Wherein, system time corresponds to the code stream DTV time.
Below by taking Netflix as an example, the above method is illustrated.
In television terminal, in general, if user's payment has purchased the digital rights certificate for carrying associated rights,
The digital rights certificate can be handed down to television terminal by server, carry out respective stored by television terminal, as user charges are bought
The digital rights certificate service that Netflix is provided as digital content provider, then television terminal is paid with Netflix
When taking interaction, television terminal, which can be reserved for, corresponding digital rights certificate, and having for user charges purchase can be carried in the certificate
The relevant information of effect phase, within the validity period of digital rights certificate, user can play the relevant digital content of viewing, otherwise,
Then have no right to watch.
, in the embodiment of the present application optionally, can be with area in two kinds of situation for accumulated time, one is in terminal
Every time after power-off, the accumulated time is reset.After i.e. each television terminal powers on, code stream DTV time and network N TP time
Difference all recalculated beyond cumulative time of preset threshold.Another kind is whether not considering further that terminal power-off, from user head
When secondary request viewing digital content, begin to calculate the cumulative time.It is practical to the above method to answer below by taking both of these case as an example
With being illustrated.
In a kind of possible embodiment, it is assumed that Netflix is 1 year in the duration of certificate of certain Television clients, effectively
Phase on December 28th, 2018.When user plays the relevant payment content of Netflix every time, system obtain first code stream DTV and
The network N TP time is compared if the two is close with code stream DTV time and certificate time, and certificate is not yet due, executes broadcasting,
Certificate expiration is then refused.If the two is not close, determine this situation on TV electricity after accumulated time whether reach 30
Minute, if not up to, it tries reacquire the code stream DTV time after 1 minute and the network N TP time executes aforesaid operations.
If having reached 30 minutes timeout modes, the network N TP time updating system time is used, and then determine digital version warrant book-like
State, expire refusal, not yet due execution play operation, and backs up the code stream DTV time to carry out DTV business.In each television terminal
After powering on, it is assumed that the code stream DTV time is abnormal always, that uses the digital content that can watch 30 minutes per family, ties at 30 minutes
Shu Hou with the network N TP time updating system time, and then determines digital version warrant book-like state, and expire refusal, and not yet due execution is broadcast
Operation is put, and backs up the code stream DTV time to carry out DTV business.User by television terminal power off and then it is secondary power on, then can be with
Continue the digital content of 30 grouping of viewing, and so on.
In alternatively possible embodiment, it is assumed that Netflix is 1 year in the duration of certificate of certain Television clients, is had
Effect phase on December 28th, 2018.When user plays the relevant payment content of Netflix every time, system obtains code stream DTV first
Time and network N TP time are compared, certificate is not yet due, executes if the two is close with code stream DTV time and certificate time
It plays, certificate expiration is then refused.If the two is not close, determine this situation on TV electricity after accumulated time whether reach
By 30 minutes, if not up to, it tries reacquire the code stream DTV time after 1 minute and the network N TP time executes above-mentioned behaviour
Make.After user has viewed 10 minutes digital contents, television terminal is powered off, television terminal is in the watching process of user before
The duration of real-time update user's watched, after television terminal receives cut-offing instruction, by the duration of user's watched i.e. 10 point
The information preservation of clock is to non-volatile memory medium or server end, after waiting users to power on again to television terminal, it is assumed that code
Flow that the code stream DTV time is abnormal always, that user can also continue to the digital content of viewing 20 minutes, i.e., with watch before 10 points
Clock is accumulated, and after 30 minutes, with the network N TP time updating system time, and then determines digital version warrant book-like state,
Expire refusal, not yet due execution play operation, and backs up the code stream DTV time to carry out DTV business.
As can be seen from the above embodiments, compared with prior art, the present invention television terminal is receiving asking for playing digital content
After asking, parses the code stream DTV time of digital content place frequency point and request the network N TP time to server；When sentencing
Short in size stream DTV time and the network N TP time phase difference obtained by network server are larger, can tentatively assert the code stream of user terminal
DTV time anomaly, and further pass through the fault-tolerant threshold range of accumulated time, it reduces single by the code stream DTV time
Judge the risk of system time by accident；Since within fault-tolerant threshold range, the system time in television terminal is not with parsing code
The code stream DTV time that stream obtains is updated, and television terminal is also to maintain the system time before updating, if finally making described
System time without departing from the digital rights certificate validity period when, allow to play the digital content, that is to say, that in TV
If code stream the problem of code stream DTV time anomaly occurs because causing malicious interference or transmission abnormality in terminal, such as code
Flow DTV time service exception wash-ahead to the validity period of digital rights certificate after when, on the one hand, user can also over a period to come after
Relevant digital content is put in continued broadcasting, on the other hand, increases fault tolerant mechanism to by the code stream DTV time updating system time, such as
The fruit code stream DTV time restores normally, then to execute update system time again at this time, and judge digital rights certificate within a certain period of time
Validity, increase the robustness of television system, the user experience is improved.In addition, TV is whole except fault-tolerant threshold range
System time in end is not as the code stream DTV time that parsing code stream obtains is updated, but use is obtained from network
The network N TP time carry out system time update, ensure that the correct certification of digital content digital rights certificate；To code stream
The DTV time carries out backing up and being used for DTV business, ensure that the normal operation of DTV business.
Based on identical inventive concept, present invention also provides a kind of digital television business processing units, as shown in figure 3,
Described device 300 includes:
Receiving unit 301, for receiving the request of playing digital content；
Time acquisition unit 302 requests network for the code stream DTV time of frequency point where parsing digital content, and to server
NTP network time；
Judging unit 303 for judging whether code stream DTV time and the difference of network N TP time exceed preset threshold, and judges
Whether accumulated time of the difference beyond preset threshold be in fault-tolerant threshold range；
Execution unit 304, if for judging that the difference of code stream DTV time and network N TP time exceed preset threshold, and difference is super
The accumulated time of preset threshold is more than fault-tolerant threshold range out, then using the network N TP time updating system time and to code stream DTV
Time is backed up；
Business unit 305, for based on backup the code stream DTV time carry out DTV business, and based on updated system time into
Row network service.
Further, if execution unit 304 is also used to judge the difference of the code stream DTV time Yu the network N TP time
Value then uses the network N TP time updating system time without departing from preset threshold；Correspondingly, business unit 305 is also used to base
DTV business and network service are carried out in updated system time.
Further, business unit is also used to:
Judge whether updated system time exceeds the validity period of digital rights certificate；
If it is not, then allowing to play the network service.
As shown in figure 4, the embodiment of the invention provides a kind of digital TV terminals, comprising:
At least one processor 400 and at least one processor 401, wherein the memory 401 is stored with program code,
When said program code is executed by the processing unit, so that the processor 400 executes following process:
Receive the request of playing digital content；
The code stream DTV time of frequency point where parsing the digital content, and the network N TP time is requested to server；
If judging, the difference of the code stream DTV time and the network N TP time exceed preset threshold, and the difference is beyond pre-
If the accumulated time of threshold value is more than fault-tolerant threshold range, then using the network N TP time updating system time and to the code
The stream DTV time is backed up；
The code stream DTV time based on backup carries out DTV business, and carries out network service based on updated system time.
Processor executes the concrete mode of operation in relation to the data cached processing in terminal in the embodiment
Detailed description is performed in the embodiment of method, will no longer elaborate explanation herein.
It should be noted that the above-mentioned processor being related to of the embodiment of the present disclosure can be central processing unit (central
Processing unit, CPU), general processor, digital signal processor (digital signal processor, DSP),
Specific integrated circuit (application-specific integrated circuit, ASIC), field programmable gate array
It is (field programmable gate array, FPGA) or other programmable logic device, transistor logic, hard
Part component or any combination thereof.It, which may be implemented or executes, combines various illustrative logic sides described in present disclosure
Frame, module and circuit.Processor is also possible to realize the combination of computing function, such as includes one or more microprocessors group
It closes, DSP and the combination of microprocessor etc..Wherein, the memory can integrate in the processor, can also with it is described
Processor is provided separately.
Based on the same technical idea, the embodiment of the present application also provides a kind of computer readable storage medium, computers
Readable storage medium storing program for executing is stored with computer executable instructions, and computer executable instructions are for executing computer in Fig. 1 or Fig. 2
Performed process.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions can also be loaded into computer or other programmable data processing devices, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies
Within, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of digital television business processing method, which is characterized in that the described method includes:
Receive the request of playing digital content；
The code stream DTV time of frequency point where parsing the digital content, and the network N TP time is requested to server；
If judging, the difference of the code stream DTV time and the network N TP time exceed preset threshold, and the difference is beyond pre-
If the accumulated time of threshold value is more than fault-tolerant threshold range, then using the network N TP time updating system time and to the code
The stream DTV time is backed up；
The code stream DTV time based on backup carries out DTV business, and carries out network service based on updated system time.
2. the method according to claim 1, wherein the method also includes:
If judging, the difference of the code stream DTV time and the network N TP time exceed preset threshold, and the difference is beyond pre-
If the accumulated time of threshold value is less than fault-tolerant threshold range；Then, triggering executes again after preset time:
The code stream DTV time of frequency point where parsing the digital content simultaneously requests the network N TP time to server；
Judge whether the difference of the code stream DTV time and the network N TP time exceed preset threshold, and beyond default threshold
Whether the accumulated time of value is in fault-tolerant threshold range.
3. the method according to claim 1, wherein the method also includes:
If judging, the difference of the code stream DTV time and the network N TP time without departing from preset threshold, use the code stream
The DTV time updating system time；
DTV business and network service are carried out based on updated system time.
4. any method according to claim 1 ~ 3, which is characterized in that described to carry out net based on updated system time
Network business includes:
Judge whether updated system time exceeds the validity period of digital rights certificate；
If it is not, then allowing to play the network service.
5. any method according to claim 1 ~ 3, which is characterized in that the method also includes:
After terminal powers off every time, the accumulated time is reset.
6. a kind of digital television business processing unit, which is characterized in that described device includes:
Receiving unit, for receiving the request of playing digital content；
Time acquisition unit requests network for the code stream DTV time of frequency point where parsing the digital content, and to server
The NTP time；
Judging unit, for judging whether the code stream DTV time and the difference of the network N TP time exceed preset threshold,
And judge accumulated time of the difference beyond preset threshold whether in fault-tolerant threshold range；
Execution unit, if for judging that the difference of the code stream DTV time and the network N TP time exceed preset threshold, and
Accumulated time of the difference beyond preset threshold is more than fault-tolerant threshold range, then uses the network N TP time updating system
Time simultaneously backs up the code stream DTV time；
Business unit is carried out DTV business for the code stream DTV time based on backup, and is carried out based on updated system time
Network service.
7. device according to claim 6, which is characterized in that if the execution unit is also used to judge the code stream DTV
The difference of time and the network N TP time then use the code stream DTV time updating system time without departing from preset threshold；
Correspondingly, the business unit is also used to carry out DTV business and network service based on updated system time.
8. according to the method described in claim 6, it is characterized in that, the business unit is also used to:
Judge whether updated system time exceeds the validity period of digital rights certificate；
If it is not, then allowing to play the network service.
9. a kind of television terminal characterized by comprising
Processor；
Memory；And
Computer program；
Wherein, the computer program is stored in the memory, and is configured as being executed by the processor, described
Computer program includes the instruction that any one of 1 ~ 5 the method is required for perform claim.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, the computer instruction, which is executed by processor, realizes method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811523468.3A CN109587541A (en) | 2018-12-13 | 2018-12-13 | A kind of digital television business processing method, device and television terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811523468.3A CN109587541A (en) | 2018-12-13 | 2018-12-13 | A kind of digital television business processing method, device and television terminal |
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| CN109587541A true CN109587541A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811523468.3A Withdrawn CN109587541A (en) | 2018-12-13 | 2018-12-13 | A kind of digital television business processing method, device and television terminal |
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Cited By (1)
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| CN110333968A (en) * | 2019-06-12 | 2019-10-15 | 郑州轻工业学院 | Data managing method, device and computer equipment applied to database |
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Application publication date: 20190405 |