CN102665089A - HDCP function test method, detected terminal and detection terminal - Google Patents
HDCP function test method, detected terminal and detection terminal Download PDFInfo
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- CN102665089A CN102665089A CN2012100880962A CN201210088096A CN102665089A CN 102665089 A CN102665089 A CN 102665089A CN 2012100880962 A CN2012100880962 A CN 2012100880962A CN 201210088096 A CN201210088096 A CN 201210088096A CN 102665089 A CN102665089 A CN 102665089A
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Abstract
One of the embodiments of the invention discloses a high-bandwidth digital content protection (HDCP) function test method, comprising: receiving an HDCP Key sent by a detection terminal; sending an HDCP verification request to a television set according to the HDCP Key and receiving verification data returned by the television set; and determining an HDCP verification result according to the verification data and outputting an HDCP state indication message. Correspondingly, the embodiments of the invention also disclose another HDCP function test method, a detected terminal and a detection terminal. According to the invention, an HDCP Key at a detected terminal can be verified and simultaneously, it is determined whether the HDCP function of the detected terminal can be used normally or not, thereby improving reliability of the detected terminal.
Description
Technical field
The present invention relates to the digital television techniques field, relate in particular to a kind of HDCP (High-bandwidth Digital Content Protection) function test method, dut terminal and sense terminals.
Background technology
Along with HDTV (High Definition Television; High definition TV) development; In order to adapt to the high bandwidth of HDTV, HDMI (High Definition Multimedia Interface, HDMI) has appearred; HDMI is a kind of interface standard, and it can provide high bandwidth to realize the harmless transmission of digital audio-video signal.Illegally do not recorded for the high-definition signal that guarantees the HDMI transmission, the HDCP technology is arisen at the historic moment.When the user carried out bootlegging to the high-definition signal of HDMI transmission, the HDCP technology was then disturbed, and reduces the quality of image of duplicating out, thereby reaches the purpose that the content of transmission is protected.At present; (for example: the high-definition digital STB) basic demand realizes the HDCP function at the high-definition digital terminal; But in the production process at high-definition digital terminal, HDCP Key (key) generally only is written in the memory at high-definition digital terminal, and unmatchful this HDCP Key link of carrying out verification; Can't judge also whether the HDCP function at this high-definition digital terminal can normally be used, thereby influence the reliability at high-definition digital terminal.
Summary of the invention
Embodiment of the invention technical problem to be solved is; A kind of HDCP function test method, dut terminal and sense terminals are provided; Can carry out verification to the HDCP Key of dut terminal; And whether the HDCP function of judging this dut terminal simultaneously can normally use the reliability of raising dut terminal.
In order to solve the problems of the technologies described above, on the one hand, the embodiment of the invention provides a kind of HDCP function test method, comprising:
Receive the HDCP key HDCP Key that sense terminals is sent;
Send the HDCP check request according to said HDCP Key to television set, and receive the checking data that said television set returns;
Confirm check results according to said checking data, and output HDCP state indication message.
On the other hand, the embodiment of the invention provides another kind of HDCP function test method, comprising:
Send HDCP Key to dut terminal;
Receive the HDCP state indication message that said dut terminal is returned according to said HDCP Key;
Carry out test processes according to said Indication message.
On the other hand, the embodiment of the invention provides a kind of dut terminal, comprising:
Receiver module is used to receive the HDCP Key that sense terminals is sent;
The verification module, the HDCP Key that is used for receiving according to said receiver module sends the HDCP check request to television set, and receives the checking data that said television set returns;
Output module is used for confirming check results according to the checking data that said verification module obtains, output HDCP state indication message.
On the other hand, the embodiment of the invention provides a kind of sense terminals, comprising:
Transceiver module is used for sending HDCP Key to dut terminal, and receives the HDCP state indication message that said dut terminal is returned according to said HDCP Key;
Processing module, the Indication message that is used for receiving according to said transceiver module is carried out test processes.
Embodiment of the present invention embodiment has following beneficial effect:
In the embodiment of the invention; HDCP Key and television set that dut terminal sends sense terminals carry out communication; Through with television set carry out HDCP Key verification alternately, can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals, dut terminal is according to check results output HDCP state indication message simultaneously; Can judge intuitively that whether the HDCP function of dut terminal can normally be used, and has promoted the reliability of dut terminal.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment of HDCP function test method provided by the invention;
Fig. 2 is the flow chart of another embodiment of HDCP function test method provided by the invention;
Fig. 3 is the flow chart of another embodiment of HDCP function test method provided by the invention;
Fig. 4 is the structural representation of an embodiment of dut terminal provided by the invention;
Fig. 5 is the structural representation of another embodiment of dut terminal provided by the invention;
Fig. 6 is the structural representation of an embodiment of the output module of dut terminal provided by the invention;
Fig. 7 is the structural representation of an embodiment of sense terminals provided by the invention;
Fig. 8 is the structural representation of another embodiment of sense terminals provided by the invention;
Fig. 9 is the structural representation of an embodiment of the processing module of sense terminals provided by the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
In the embodiment of the invention, television set can be for possessing the television set of HDCP function, and it can be connected with dut terminal through the HDMI line.Dut terminal can be the high-definition digital terminal, and for example: the high-definition digital STB, this STB includes memory.Sense terminals can be for being used to control the terminal equipment that dut terminal carries out production test; It can be through serial ports (for example: the RS32 serial ports) be connected with dut terminal; For example: this sense terminals can be PC, preserves the HDCP Key of some in this PC, and the tool software of test usefulness is installed; The tool software of PC end is used for carrying out communication at production test procedure and STB, and HDCP Key is write the HDCP function of STB with the test machine top box.Except that specifying, the sense terminals of the embodiment of the invention is that example describes with the PC, and dut terminal is that example describes with the STB.
To combine Fig. 1-3 below, HDCP function test method provided by the invention will be described in detail.
See also Fig. 1, be the flow chart of an embodiment of HDCP function test method provided by the invention; The executive agent of present embodiment can be dut terminal, and this method can comprise:
S101 receives the HDCP Key that sense terminals is sent.
Sense terminals can be sent HDCP Key to dut terminal through serial ports, and this step then receives sense terminals through HDCP Key that serial ports sent.
S102 sends the HDCP check request according to said HDCP Key to television set, and receives the checking data that said television set returns.
Among the step S101, receive the HDCP Key that sense terminals sends after, dut terminal can be set to this HDCP Key in the application software of local terminal, and opens the HDCP function.In this step, sense terminals is sent the HDCP check request to television set, and receives the checking data that said television set returns.In concrete the realization, this checking procedure can not given unnecessary details at this with reference to the checking procedure of STB and television set in the use of existing HDCP function.
S103 confirms check results according to said checking data, and output HDCP state indication message.
Wherein, said check results comprises: verification succeeds or verification failure.Said HDCP state indication message can comprise: the Indication message of normal Indication message of HDCP state or HDCP abnormal state.In this step, the concrete processing procedure of dut terminal is: if the checking data that returns according to television set is confirmed verification succeeds, and then with said HDCP Key write memory, and to the normal Indication message of said sense terminals output HDCP state; If confirm the verification failure, then export the Indication message of HDCP abnormal state to said sense terminals according to television set back-checking data.It is understandable that dut terminal confirms that according to checking data the process of check results can not give unnecessary details at this with reference to prior art.
In the embodiment of the invention; HDCP Key and television set that dut terminal sends sense terminals carry out communication; Through with television set carry out HDCP Key verification alternately, can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals, dut terminal is according to check results output HDCP state indication message simultaneously; Can judge intuitively that whether the HDCP function of dut terminal can normally be used, and has promoted the reliability of dut terminal.
See also Fig. 2, be the flow chart of another embodiment of HDCP function test method provided by the invention; The executive agent of present embodiment can be sense terminals, and this method can comprise:
S201 sends HDCP Key to dut terminal.
In this step, sense terminals can be sent HDCP Key to dut terminal through serial ports.
S202 receives the HDCP state indication message that said dut terminal is returned according to said HDCP Key.
Dut terminal can be exported the HDCP state indication message to sense terminals according to HDCP Key, and this HDCP state indication message comprises: the Indication message of normal Indication message of HDCP state or HDCP abnormal state.In this step, the Indication message that sense terminals then receives dut terminal to be returned.
S203 carries out test processes according to said Indication message.
In this step; The test processes process of sense terminals can comprise: if step S202 receives the normal Indication message of HDCP state; Then confirm the HDCP functional test success of said dut terminal, the sequence number and the said HDCP Key of the said dut terminal that storage has been bound; If step S202 receives the Indication message of HDCP abnormal state; Then cancel the sequence number of said dut terminal and the binding between the said HDCP Key; Sequence number and another idle HDCP Key of said dut terminal are bound, and the new HDCP Key that binds of sequence number of said dut terminal is sent to said dut terminal.
In the embodiment of the invention; Sense terminals is carried out test processes according to the HDCP state indication message that dut terminal returns; Can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals; According to the HDCP state indication message, can judge intuitively whether the HDCP function of dut terminal can normally be used simultaneously, promote the reliability of sense terminals.
See also Fig. 3, be the flow chart of another embodiment of HDCP function test method provided by the invention; This method can comprise:
S301, sense terminals is sent reading command to dut terminal.
In this step, the tool software that sense terminals can adopt local terminal to install sends reading command to dut terminal, and the sequence number of dut terminal is read in instruction.
S302, dut terminal return the sequence number of local terminal to said sense terminals.
In this step, dut terminal can pass through serial ports, and RS232 serial ports for example returns the sequence number of dut terminal local terminal to sense terminals, and this sequence number is in order to the unique identification dut terminal.
S303, sense terminals is bound the sequence number of said dut terminal and the HDCP Key of a free time.
Whether because the sense terminals local terminal has been stored the HDCP Key of some in advance, in this step, sense terminals can be bound the sequence number of dut terminal with the HDCP Key of a free time mutually, normal in order to the HDCP function of test dut terminal.Wherein, idle HDCP Key representes that this HDCP Key is not in binding state, does not promptly bind with any sequence number mutually.
S304, sense terminals is sent HDCP Key to dut terminal.
S305, dut terminal sends the HDCP check request according to said HDCP Key to television set.
S306 if dut terminal is confirmed verification succeeds according to the checking data that the said television set that receives returns, changes S307 over to; Otherwise, change S311 over to.
S307, dut terminal is with HDCP Key write memory.
S308, dut terminal is to the normal Indication message of sense terminals output HDCP state.
S309, sense terminals is confirmed the HDCP functional test success of dut terminal.
S310, the sequence number and the HDCP Key of the dut terminal that the sense terminals storage has been bound; Change end over to.
S311 if the checking data that dut terminal returns according to the said television set that receives is confirmed the verification failure, changes S312 over to.
S312, dut terminal is to the Indication message of sense terminals output HDCP abnormal state.
In the present embodiment; Sense terminals is behind the Indication message of the HDCP abnormal state that receives dut terminal output; Can also comprise a determination step, that is: sense terminals judges whether the number of times that receives the Indication message of HDCP abnormal state from same dut terminal surpasses predetermined threshold; If judged result is for being the then HDCP functional test of definite said dut terminal failure.Wherein, Predetermined threshold can be set according to actual conditions; For example: can be set at 3, promptly judge the number of times that receives the Indication message of HDCP abnormal state from same STB and surpass three times, then can think the HDCP functional test failure of this STB when PC; Assert that this STB is a bad machine, needs repairing.
S313, the sequence number of sense terminals cancellation dut terminal and the binding between the HDCP Key.
S314, sense terminals is bound sequence number and another idle HDCP Key of dut terminal, and returns S304.
Description through the foregoing description; In the embodiment of the invention, HDCP Key and television set that dut terminal sends sense terminals carry out communication, through with television set carry out HDCP Key verification alternately; Can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals; Dut terminal can judge intuitively according to check results output HDCP state indication message whether the HDCP function of dut terminal can normally be used simultaneously, has promoted the reliability of dut terminal.
Description corresponding to above-mentioned embodiment about the HDCP function test method will combine Fig. 4-6 below, and dut terminal provided by the invention is described in detail.
See also Fig. 4, be the structural representation of an embodiment of dut terminal provided by the invention; This dut terminal comprises:
Sense terminals can be sent HDCP Key to dut terminal through serial ports, and 101 of receiver modules receive sense terminals through HDCP Key that serial ports sent.
Behind the HDCP Key that receives the sense terminals transmission, verification module 102 can be set to this HDCP Key in the application software of local terminal, and opens the HDCP function.Verification module 102 is sent the HDCP check request to television set, and receives the checking data that said television set returns.In concrete the realization, this checking procedure can not given unnecessary details at this with reference to the checking procedure of STB and television set in the use of existing HDCP function.
Wherein, said check results comprises: verification succeeds or verification failure.Said HDCP state indication message can comprise: the Indication message of normal Indication message of HDCP state or HDCP abnormal state.The concrete processing procedure of output module 103 is: if the checking data that returns according to television set is confirmed verification succeeds, and then with said HDCP Key write memory, and to the normal Indication message of said sense terminals output HDCP state; If the checking data according to said television set returns is confirmed the verification failure, then export the Indication message of HDCP abnormal state to said sense terminals.
See also Fig. 5, be the structural representation of another embodiment of dut terminal provided by the invention; The dut terminal of present embodiment comprises with embodiment illustrated in fig. 4 identical: receiver module 101, and verification module 102 and output module 103, alternatively, the dut terminal in the present embodiment further comprises:
Sequence number returns module 105, be used for when said judge module 104 judged results when being, return the sequence number of local terminal to said sense terminals.
Sequence number returns module 105 can pass through serial ports, and RS232 serial ports for example returns the sequence number of dut terminal local terminal to sense terminals, and this sequence number is the unique identification of local terminal.
See also Fig. 6, be the structural representation of an embodiment of the output module of dut terminal provided by the invention; This output module 103 comprises:
R/w cell 312 is when being used for confirming verification succeeds in said definite unit 311, with said HDCP Key write memory.
In the embodiment of the invention; HDCP Key and television set that dut terminal sends sense terminals carry out communication; Through with television set carry out HDCP Key verification alternately, can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals, dut terminal is according to check results output HDCP state indication message simultaneously; Can judge intuitively that whether the HDCP function of dut terminal can normally be used, and has promoted the reliability of dut terminal.
Corresponding to the description of above-mentioned embodiment about the HDCP function test method, and the description of above-mentioned embodiment about dut terminal, will combine Fig. 7-9 below, sense terminals provided by the invention is described in detail.
See also Fig. 7, be the structural representation of an embodiment of sense terminals provided by the invention; This sense terminals comprises:
The test processes process of processing module 202 can comprise: if receive the normal Indication message of HDCP state, then confirm the HDCP functional test success of said dut terminal, the sequence number and the said HDCP Key of the said dut terminal that storage has been bound; If receive the Indication message of HDCP abnormal state; Then cancel the sequence number of said dut terminal and the binding between the said HDCP Key; Sequence number and another idle HDCP Key of said dut terminal are bound, and the new HDCP Key that binds of sequence number of said dut terminal is sent to said dut terminal.
See also Fig. 8, be the structural representation of another embodiment of sense terminals provided by the invention; The sense terminals of present embodiment is identical with sense terminals embodiment illustrated in fig. 7, comprising: transceiver module 201 and processing module 202.Alternatively, the sense terminals of present embodiment further comprises:
Read module 203 is used for sending reading command to dut terminal, and receives the sequence number of the said dut terminal that said dut terminal returns according to said reading command.
Said processing module 202, the sequence number of the said dut terminal that also is used for said read module 203 is read and the HDCP Key of a free time bind.
Wherein, the HDCP Key of said free time representes that said HDCP Key is in the state of not bound.
Determination module 204 is used to judge whether said transceiver module 201 receives the Indication message of HDCP abnormal state from same dut terminal number of times surpasses predetermined threshold, and in judged result when being, confirm that the HDCP functional test of said dut terminal is failed.
Wherein, Predetermined threshold can be set according to actual conditions; For example: can be set at 3, promptly judge the number of times that receives the Indication message of HDCP abnormal state from same STB and surpass three times, then can think the HDCP functional test failure of this STB when determination module 204; Assert that this STB for badly wanting, needs repairing.
See also Fig. 9, be the structural representation of an embodiment of the processing module of sense terminals provided by the invention; This processing module 202 comprises:
In the embodiment of the invention; Sense terminals is carried out test processes according to the HDCP state indication message that dut terminal returns; Can guarantee finally to deposit in the correctness of the HDCP Key of sense terminals; According to the HDCP state indication message, can judge intuitively whether the HDCP function of dut terminal can normally be used simultaneously, promote the reliability of sense terminals.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosedly be merely preferred embodiment of the present invention; Certainly can not limit the present invention's interest field with this; One of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description; And, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (15)
1. a HDCP HDCP function test method is characterized in that, comprising:
Receive the HDCP key HDCP Key that sense terminals is sent;
Send the HDCP check request according to said HDCP Key to television set, and receive the checking data that said television set returns;
Confirm check results according to said checking data, and output HDCP state indication message.
2. the method for claim 1 is characterized in that, before the HDCP Key that said reception sense terminals is sent, also comprises:
Judge whether to receive the reading command that sense terminals is sent;
When receiving the reading command of sense terminals transmission, return the sequence number of local terminal to said sense terminals.
3. according to claim 1 or claim 2 method is characterized in that said check results comprises: verification succeeds or verification failure;
Said HDCP state indication message comprises: the Indication message of normal Indication message of HDCP state or HDCP abnormal state.
4. method as claimed in claim 3 is characterized in that, saidly confirms check results according to said checking data, and output HDCP state indication message, comprising:
If confirm verification succeeds according to said checking data, then with said HDCP Key write memory, and to the normal Indication message of said sense terminals output HDCP state;
If confirm the verification failure, then export the Indication message of HDCP abnormal state to said sense terminals according to said checking data.
5. a HDCP function test method is characterized in that, comprising:
Send HDCP Key to dut terminal;
Receive the HDCP state indication message that said dut terminal is returned according to said HDCP Key;
Carry out test processes according to said Indication message.
6. method as claimed in claim 5 is characterized in that, and is said before dut terminal sends HDCP Key, also comprises:
Send reading command to dut terminal, and receive the sequence number of the said dut terminal that said dut terminal returns according to said reading command;
The sequence number of said dut terminal and the HDCP Key of a free time are bound;
Wherein, the HDCP Key of said free time representes that said HDCP Key is in the state of not bound.
7. method as claimed in claim 6 is characterized in that, said HDCP state indication message comprises: the Indication message of normal Indication message of HDCP state or HDCP abnormal state;
Said according to said Indication message execution test processes, comprising:
If receive the normal Indication message of HDCP state, then confirm the HDCP functional test success of said dut terminal, the sequence number and the said HDCP Key of the said dut terminal that storage has been bound;
If receive the Indication message of HDCP abnormal state; Then cancel the sequence number of said dut terminal and the binding between the said HDCP Key; Sequence number and another idle HDCP Key of said dut terminal are bound, and the new HDCP Key that binds of sequence number of said dut terminal is sent to said dut terminal.
8. like each described method of claim 5-7, it is characterized in that, also comprise:
Whether judgement receives the Indication message of HDCP abnormal state from same dut terminal number of times surpasses predetermined threshold;
If judged result is for being the then HDCP functional test of definite said dut terminal failure.
9. a dut terminal is characterized in that, comprising:
Receiver module is used to receive the HDCP Key that sense terminals is sent;
The verification module, the HDCP Key that is used for receiving according to said receiver module sends the HDCP check request to television set, and receives the checking data that said television set returns;
Output module is used for confirming check results according to the checking data that said verification module obtains, output HDCP state indication message.
10. dut terminal as claimed in claim 9 is characterized in that, also comprises:
Judge module is used to judge whether to receive the reading command that sense terminals is sent;
Sequence number returns module, be used for when said judge module judged result when being, return the sequence number of local terminal to said sense terminals.
11., it is characterized in that said output module comprises like claim 9 or 10 described dut terminals:
Confirm the unit, be used for confirming check results that said check results comprises: verification succeeds or verification failure according to the checking data that said verification module obtains;
R/w cell is when being used for confirming verification succeeds in said definite unit, with said HDCP Key write memory;
First output unit is when being used for confirming verification succeeds in said definite unit, to the normal Indication message of said sense terminals output HDCP state;
Second output unit is when being used for confirming in said definite unit the verification failure, to the Indication message of said sense terminals output HDCP abnormal state.
12. a sense terminals is characterized in that, comprising:
Transceiver module is used for sending HDCP Key to dut terminal, and receives the HDCP state indication message that said dut terminal is returned according to said HDCP Key;
Processing module, the Indication message that is used for receiving according to said transceiver module is carried out test processes.
13. sense terminals as claimed in claim 12 is characterized in that, also comprises:
Read module is used for sending reading command to dut terminal, and receives the sequence number of the said dut terminal that said dut terminal returns according to said reading command;
Said processing module, the sequence number of the said dut terminal that also is used for said read module is read and the HDCP Key of a free time bind;
Wherein, the HDCP Key of said free time representes that said HDCP Key is in the state of not bound.
14. sense terminals as claimed in claim 13 is characterized in that, said processing module comprises:
First processing unit is used for when said transceiver module receives the normal Indication message of HDCP state, confirms the HDCP functional test success of said dut terminal, and stores the sequence number and the said HDCP Key of the said dut terminal of having bound;
Second processing unit; Be used for when said transceiver module receives the Indication message of HDCP abnormal state; Then cancel the sequence number of said dut terminal and the binding between the said HDCP Key; Sequence number and another idle HDCP Key of said dut terminal are bound, and notify said transceiver module that the new HDCP Key that binds of sequence number of said dut terminal is sent to said dut terminal;
Wherein, said HDCP state indication message comprises: the Indication message of normal Indication message of HDCP state or HDCP abnormal state.
15. like each described sense terminals of claim 12-14, it is characterized in that, also comprise:
Determination module is used to judge whether said transceiver module receives the Indication message of HDCP abnormal state from same dut terminal number of times surpasses predetermined threshold, and in judged result when being, confirm that the HDCP functional test of said dut terminal is failed.
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| CN110062294A (en) * | 2019-04-24 | 2019-07-26 | 晶晨半导体(上海)股份有限公司 | Method for transmitting signals and system based on HDCP key |
| WO2020215669A1 (en) * | 2019-04-24 | 2020-10-29 | 晶晨半导体(上海)股份有限公司 | Hdcp key-based signal transmission method and system |
| CN110062294B (en) * | 2019-04-24 | 2021-10-19 | 晶晨半导体(上海)股份有限公司 | HDCP (high-level data protection protocol) key-based signal transmission method and system |
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| CN110324612B (en) * | 2019-07-05 | 2021-06-22 | 深圳市康冠科技股份有限公司 | Television testing method, testing control terminal and television |
| CN111723344A (en) * | 2020-05-26 | 2020-09-29 | 深圳数字电视国家工程实验室股份有限公司 | Digital content protection method, device, electronic equipment and storage medium |
| CN111723344B (en) * | 2020-05-26 | 2024-03-19 | 深圳数字电视国家工程实验室股份有限公司 | Digital content protection method, device, electronic equipment and storage medium |
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