CN104301714A - Method and device for detecting channel switching response time of television equipment - Google Patents

Method and device for detecting channel switching response time of television equipment Download PDF

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Publication number
CN104301714A
CN104301714A CN201410527742.XA CN201410527742A CN104301714A CN 104301714 A CN104301714 A CN 104301714A CN 201410527742 A CN201410527742 A CN 201410527742A CN 104301714 A CN104301714 A CN 104301714A
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China
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described
television
channel
time
television equipment
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CN201410527742.XA
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Chinese (zh)
Inventor
张伟丽
夏培勇
盖玉罡
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青岛海信电器股份有限公司
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Priority to CN201410527742.XA priority Critical patent/CN104301714A/en
Publication of CN104301714A publication Critical patent/CN104301714A/en

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Abstract

The invention discloses a method and device for detecting channel switching response time of television equipment. The method mainly includes the steps of recording channel switching starting time through information interaction between the detecting device and the detected television equipment; collecting a television picture of the television equipment through a camera, analyzing the television picture according to a preset image processing rule, when it is judged that the television picture is different from a prior television picture, determining that channel switching is successful, and recording the time corresponding to the prior television picture to be channel switching stopping time; accordingly determining the channel switching response time of the television equipment through the recorded channel switching starting time and the recorded channel switching stopping time. Due to the fact that man-made hand operation is avoided, the detection result is closer to the practical channel switching response time, and the detection efficiency and the detection accuracy are improved; meanwhile, the scheme of the method and device is high in suitability, the television equipment in any model size can be detected, and the high detection compatibility is achieved.

Description

A kind of method and device detecting the television equipment channel switch response time

Technical field

The present invention relates to communication technical field, particularly relate to a kind of method and the device that detect the television equipment channel switch response time.

Background technology

Along with the fast development of television equipment, the demand for experience of user is more and more higher, comprise: the demand of picture texture, colorfulness, the continuously performance such as switching on and shutting down and channel switch, especially for the channel switch response time affecting user's viewing effect, therefore, its in performance test in occupation of consequence.

But, in current TV test, unsatisfactory to the detection of the channel switch response time of television equipment, specifically can realize in the following manner:

Mode one: click remote controller key manually, presses stopwatch simultaneously and starts timing, sees and presses stopwatch again after television image switches, calculate switching time, average after multi-pass operation until naked eyes.Because which needs manual testing, result is very easily subject to the impact of tester's experience, causes test result extremely inaccurate.And due to the channel switch response time very short, be therefore not suitable for use stopwatch test.

Mode two: timing when receiving channel switching instruction from television equipment, the channel frequency handover success time on monitoring TV backstage, averages after repeatedly calculating.This kind of mode have ignored the time of channel switching instruction transmission on the one hand; Have ignored on the other hand frequency handover success and present time between stable picture to TV.Therefore, the inaccurate of test result can be caused.

Mode three: when switching TV channel, can calculate the channel switch response time by record changing table target surrounding time.But this kind of mode needs the current station symbol got and whole station logo data storehouse image to mate one by one, needs to expend the long period, can cause the inaccurate of test result equally.

Therefore, the accurate detection that suitable method of testing can realize the channel switch response time is not still had at present.

Summary of the invention

The embodiment of the present invention provides a kind of method and the device that detect the television equipment channel switch response time, in order to solve the problem that accurately cannot calculate the channel switch response time existed in prior art.

The embodiment of the present invention is by the following technical solutions:

Detect the method for television equipment channel switch response time, described method comprises:

Send channel switching instruction to television equipment, to indicate described television equipment according to described channel switching instruction by the first channel switch to the second channel, and record sends the time of described channel switching instruction for switching the time started;

Gather the television image of described television equipment display;

Judge that after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively according to time sequencing, and when judged result is different, determine that described television equipment successful switch is to described second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time;

According to described switching time started and the described finishing switching time of record, calculate the channel switch response time of described television equipment.

Detect the device of television equipment channel switch response time, described device comprises:

Instruction sending unit, for sending channel switching instruction, to indicate described television equipment according to described channel switching instruction by the first channel switch to the second channel to television equipment;

Record cell, the time of described channel switching instruction is sent for switching the time started for recording described instruction sending unit, and, for after determining that switch unit determines to record described television equipment successful switch to described second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time;

Image acquisition units, for gathering the television image of described television equipment display;

First judging unit, for judging that according to time sequencing after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively;

Determining switch unit, during for being different in the first judging unit judged result, determining that described television equipment successful switch is to described second channel;

Computing unit, for according to the described switching time started of recording and described finishing switching time, calculates the channel switch response time of described television equipment.

In embodiments of the present invention, whole process utilizes the information interaction between checkout gear and detected television equipment, the record channel switch time started; And utilize the television image of camera collection television equipment, and according to the image procossing regulation analysis television image preset, and when judging that television image presents the television image different from former frame, determine channel switch success, the time of recording former frame corresponding is the channel switch end time; Thus utilize the channel switch time started of record and channel switch end time to determine the channel switch response time of television equipment.Owing to avoiding people for manual operation, make testing result more close to the actual channel handoff response time, improve efficiency and the precision of detection; Meanwhile, scheme adaptation involved in the present invention is comparatively strong, can detect for the television equipment of disposable type size, has higher detection compatible.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

A kind of method flow diagram detecting the television equipment channel switch response time that Fig. 1 provides for the embodiment of the present invention one;

A kind of method flow diagram detecting the television equipment channel switch response time that Fig. 2 provides for the embodiment of the present invention two;

A kind of structural representation detecting the device of television equipment channel switch response time that Fig. 3 provides for the embodiment of the present invention three.

Embodiment

In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.

In embodiments of the present invention, whole process utilizes the information interaction between checkout gear and detected television equipment, the record channel switch time started; And utilize the television image of camera collection television equipment, and according to the image procossing regulation analysis television image preset, and when judging that television image presents the television image different from former frame, determine channel switch success, the time of recording former frame corresponding is the channel switch end time; Thus utilize the channel switch time started of record and channel switch end time to determine the channel switch response time of television equipment.Owing to avoiding people for manual operation, make testing result more close to the actual channel handoff response time, improve efficiency and the precision of detection; Meanwhile, scheme adaptation involved in the present invention is comparatively strong, can detect for the television equipment of disposable type size, has higher detection compatible.

Below by specific embodiment, scheme involved in the present invention is described in detail, it should be noted that, the present invention includes but be not limited to following examples.

Embodiment one:

As shown in Figure 1, be a kind of method flow diagram detecting the television equipment channel switch response time that the embodiment of the present invention one provides, the method mainly comprises the following steps:

Step 101: to television equipment send channel switching instruction, with indication TV equipment according to channel switching instruction by the first channel switch to the second channel, and record send channel switching instruction time for switch the time started.

Step 102: the television image gathering the display of television equipment present frame.

Step 103: judge that after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively according to time sequencing, if identical, then perform step 104, otherwise, gather the television image of next frame display, and jump to step 103.

Step 104: determine television equipment successful switch to the second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time.

Step 105: according to switching time started and the finishing switching time of record, determine the channel switch response time of television equipment.

Preferably, before step 103, the method also comprises: judge whether the television image of present frame gathered is sprite;

And when the television image of the present frame judging collection is sprite, judge that after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively according to time sequencing, and when judged result is different, determine television equipment successful switch to the second channel, specifically comprise: by present frame, judge after in adjacent two frames, whether the television image of a frame is sprite successively according to time sequencing, and when judged result is no, determine television equipment successful switch to the second channel.

Preferably, judge that the television image of the present frame gathered is sprite, specifically comprise: utilize the television image of Gauss algorithm to the present frame gathered to carry out denoising; Television image after denoising is carried out to the conversion of color model, and extract color component; Whether the television image judging present frame according to color component is sprite.

Preferably, before sending channel switching instruction to television equipment, the method also comprises: the frequency point information obtaining current the first shown channel of television equipment.

Be described in detail below by the method for embodiment two to the detection television equipment channel switch response time involved in the present invention.

Embodiment two:

Generally, in order to ensure the accuracy detected, before testing, the number of times of switching channels can be set to repeatedly, and after determining each channel switch response time successively, get the mean value of this multiple handoff response time.To the present invention includes but the mode being not limited to average ensures the accuracy that detects, other mode existing can also be comprised, but it determines that the method for each channel switch response time must be carried out according to the solution of the present invention.Wherein, the number of times of switching channels can think setting according to the demand of reality, and also can be that the backstage of television equipment sets automatically, concrete setting means limit.

As shown in Figure 2, for a kind of method flow diagram detecting the television equipment channel switch response time that the embodiment of the present invention two provides, the executive agent of the method is the checkout gear for detecting the television equipment channel switch response time involved in the present invention, detected television equipment can be intelligent television, also can be common non intelligent TV; Particularly, the method mainly comprises the following steps flow process:

Step 201: the frequency point information gathering the current shown channel of television equipment.

Particularly, the mutual biography of information can be carried out by the instruction path between television equipment and checkout gear, wherein just comprise the mutual biography of frequency point information.The frequency point information of the channel of the current display of checkout gear Real-time Collection television equipment, can so that the follow-up control handover operation of television equipment.

Step 202: send channel switching instruction to television equipment.

In this step 202, checkout gear sends channel switching instruction by the instruction path between television equipment and checkout gear to television equipment, with indication TV equipment according to channel switching instruction by the first channel switch to the second channel.Wherein, when this television equipment is Android intelligent television, channel switching instruction can be adb instruction, and this adb instruction is generally transmitted by the adb passage of intelligent television; When this television equipment is non intelligent TV, channel switching instruction can be remote command, and this remote command can be transmitted by modes such as infrared, bluetooths.

Step 203: record sends the time of channel switching instruction for switching the time started.

While step 202 is carried out, record is needed to send the time of channel switching instruction, and by this timing definition for switching the time started.

Step 204: judge whether to receive the channel switch response that television equipment returns, if so, then perform step 205, otherwise, jump to step 202.

Because channel switching instruction not necessarily successfully can be received by television equipment, therefore, reception feedback attributes can be set for television equipment, namely after television equipment successfully receives channel switching instruction, channel switch response is returned to checkout gear, therefore, whether can receive channel switch response by checkout gear and judge the whether successful receiving channels switching command of television equipment.And when judging to receive channel switch response, triggering and performing step 205.

Step 205: the television image gathering television equipment display.

Particularly, the television image of television equipment display is gathered by the image capture device of checkout gear.In order to can Quick Acquisition television image, the embodiment of the present invention adopts and catches picture effect and speed camera all more as well gathers television image, but the present invention is only described as example, is not limited thereto.This camera can be integrated in checkout gear, carries out image transmitting by interior communication port of establishing, also can be external outside at checkout gear, carries out image transmitting by peripheral data line.

Step 206: according to the image procossing principle preset, judges whether the television image of the first frame gathered is sprite.If so, then step 207 is performed, otherwise, operate according to step 103, and jump to 208.

Particularly, can be judged by the image procossing principle preset whether the television image gathered is sprite, in addition, passing threshold split plot design and test pattern method of comparison can also judge whether the television image of collection is sprite.

Wherein, image procossing principle involved in the present invention is: utilize the television image of Gauss algorithm to the present frame gathered to carry out denoising; Television image after denoising is carried out to the conversion of color model, and extract color histogram; Whether the television image judging present frame according to color histogram is sprite.

RGB model conversion due to the image of television image is very easy to the interference being subject to light luminance power, therefore by RGB model conversion in hsv color spatial model, with weaken light interference.In hsv color spatial model, H represents tone, and V represents saturation, and V represents brightness.Wherein H component can reflect the colouring information of pixel.Therefore, the fluctuation situation of H component can be analyzed by the mode extracting H component in color histogram, and then judge whether the television image gathered is sprite.

According to time sequencing, step 207: by the first frame, judges after in adjacent two frames, whether the television image of a frame is sprite successively, if judged result is no, then performs step 208, otherwise, obtain the television image of next frame display, and jump to step 207.

In this step 207 by the first frame, judge after in adjacent two frames, whether the television image of a frame is sprite successively, thus, only that content by gathering a frame television image can determine whether as required sprite, avoid the process compared with the television image of former frame, improve accuracy and the detection efficiency of channel switch.Such as: because the first frame is sprite, then gather the second frame television image, and judge whether the second frame is sprite, if so, then continue collection the 3rd frame television image, carry out successively.Till judging that the television image of the n-th frame is not sprite, determine television equipment successful switch to the second channel

Step 208: determine television equipment successful switch to the second channel, and the time of recording in current adjacent two frames corresponding to former frame be the finishing switching time.

Step 209: according to switching time started and the finishing switching time of record, determine the channel switch response time of television equipment.

By the finishing switching time of record and switching time started of record poor, obtain the channel switch response time of television equipment.

Step 210: judge whether to proceed channel switch, if so, then jump to step 201, otherwise detection of end operates.

Suppose, for the number of times of the switching channels of television equipment A setting is 3 times, wherein, this television equipment A can be intelligent television, also can be common non intelligent TV.

Generally, switch to the process of channel 2 at television equipment A from channel 1, needing the period switched in time delay to insert sprite (being generally black picture or blue picture), also can be any picture, or the still frame of time delay indicated channel 1.

If current television channel is No. 02, Hunan platform, frequency are 64.2M, send first time channel switching instruction, record the current time t1 sending first time channel switching instruction simultaneously.After first time receives channel switch response, the television image P (1) gathering TV device A is caught by camera, through the image processing operations of checkout gear, judge whether this television image P (1) is sprite, if, then gather the television image P (2) of next frame, judge whether this television image P (2) is sprite, till television image P (n) of the n-th frame collected is for polyenergetic picture, terminate acquisition operations, determine to switch to No. 03, channel, belong to Zhe Jiangtai, frequency is 754.3M, and record corresponding to the (n-1)th frame time be finishing switching time t1 '.Show that switching time is 1.92s according to the difference of t1 and t1 ', and average switching time 1.92s.Proceed channel switch, current television channel is No. 03, Zhe Jiangtai, frequency be 754.3M, send second time channel switching instruction, record the current time t2 sending second time channel switching instruction simultaneously.In like manner carry out aforesaid operations, and finishing switching time t2 ' when drawing second time channel switch, show that switching time is 1.87s according to the difference of t2 and t2 ', and according to 1.87s and 1.92s switching time before, draw average switching time [(t1 '-t1)+(t2 '-t2)]/2=1.895s of second time channel switch.Then, carry out third time time channel switch operation successively, draw examining report as shown in table 1.

Table 1

By the way, whole process utilizes the information interaction between checkout gear and detected television equipment, the record channel switch time started; And utilize the television image of camera collection television equipment, and according to the image procossing regulation analysis television image preset, and when judging that television image presents the television image different from former frame, determine channel switch success, the time of recording former frame corresponding is the channel switch end time; Thus utilize the channel switch time started of record and channel switch end time to determine the channel switch response time of television equipment.Therefore, the above scheme of the present invention at least can reach following technique effect: utilize the mode of channel switch to carry out actual detection, and implement this detection scheme from Consumer's Experience angle, thus make testing result more close to the actual channel handoff response time, improve the precision of detection; In addition, testing process whole process of the present invention uses the automation equipment possessing CPU disposal ability to detect, and avoids people for manual operation, improves efficiency and the precision of detection; Meanwhile, scheme adaptation involved in the present invention is comparatively strong, can detect for the television equipment of disposable type size, has higher detection compatible; Secondly, by while collection television image, obtain the frequency point information of the channel corresponding to current picture, be conducive to checkout gear and carry out data analysis in follow-up processing procedure.

Belong to same inventive concept based on a kind of method detecting the television equipment channel switch response time provided with the embodiment of the present invention one, the embodiment of the present invention three additionally provides a kind of device detecting the television equipment channel switch response time.

As shown in Figure 3, for a kind of structural representation detecting the device of television equipment channel switch response time that the embodiment of the present invention three provides, the device of this detection television equipment channel switch response time, referred to as checkout gear, can be the computer-processing equipment that PC, server, computer, Pad etc. can carry out data processing and graphical analysis.This device specifically comprises following functions unit:

Instruction sending unit 301, for television equipment send channel switching instruction, with indication TV equipment according to channel switching instruction by the first channel switch to the second channel.

Record cell 302, the time of channel switching instruction is sent for switching the time started for recording instruction transmitting element 301, and, for after determining that switch unit 305 determines record television equipment successful switch to the second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time.

Image acquisition units 303, for gathering the television image of television equipment display.

First judging unit 304, for judging that according to time sequencing after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively.

Determining switch unit 305, during for being different in the first judging unit 304 judged result, determining television equipment successful switch to the second channel.

Computing unit 306, for according to the switching time started of recording and finishing switching time, calculates the channel switch response time of television equipment.

Preferably, this checkout gear also comprises: the second judging unit, for judging whether the television image of the present frame of image acquisition units collection is sprite;

And when the television image that the second judging unit judges the present frame gathered is sprite, according to time sequencing, the first judging unit 304, specifically for by present frame, judges after in adjacent two frames, whether the television image of a frame is sprite successively;

Determine switch unit 305, specifically for when the first judging unit 304 judged result is no, determine television equipment successful switch to the second channel.

Preferably, the second judging unit specifically for: utilize Gauss algorithm to carry out denoising to the television image of present frame gathered; Television image after denoising is carried out to the conversion of color model, and extract color component; Whether the television image judging present frame according to color component is sprite.

Preferably, this checkout gear also comprises: frequency point information acquiring unit, for before sending channel switching instruction to television equipment, obtains the frequency point information of current the first shown channel of television equipment.

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

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

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

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

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

Claims (8)

1. detect the method for television equipment channel switch response time, it is characterized in that, described method comprises:
Send channel switching instruction to television equipment, to indicate described television equipment according to described channel switching instruction by the first channel switch to the second channel, and record sends the time of described channel switching instruction for switching the time started;
Gather the television image of described television equipment display;
Judge that after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively according to time sequencing, and when judged result is different, determine that described television equipment successful switch is to described second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time;
According to described switching time started and the described finishing switching time of record, calculate the channel switch response time of described television equipment.
2. the method for claim 1, is characterized in that, before judging that according to time sequencing whether the television image of a rear frame in adjacent two frames is identical with the television image of former frame successively, described method also comprises:
Judge whether the television image of present frame gathered is sprite;
When the television image of the present frame judging described collection is sprite, judge that after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively according to time sequencing, and when judged result is different, determine that described television equipment successful switch is to described second channel, specifically comprises:
By present frame, judge after in adjacent two frames, whether the television image of a frame is sprite successively according to time sequencing, and when judged result is no, determine that described television equipment successful switch is to described second channel.
3. method as claimed in claim 2, is characterized in that, whether the described television image judging the present frame gathered is sprite, specifically comprises:
The television image of Gauss algorithm to the present frame gathered is utilized to carry out denoising;
Television image after denoising is carried out to the conversion of color model, and extract color component;
Whether the television image judging present frame according to described color component is sprite.
4. the method for claim 1, is characterized in that, before sending channel switching instruction to television equipment, described method also comprises:
Obtain the frequency point information of current the first shown channel of described television equipment.
5. detect the device of television equipment channel switch response time, it is characterized in that, described device comprises:
Instruction sending unit, for sending channel switching instruction, to indicate described television equipment according to described channel switching instruction by the first channel switch to the second channel to television equipment;
Record cell, the time of described channel switching instruction is sent for switching the time started for recording described instruction sending unit, and, for after determining that switch unit determines to record described television equipment successful switch to described second channel, the time of recording in current adjacent two frames corresponding to former frame is the finishing switching time;
Image acquisition units, for gathering the television image of described television equipment display;
First judging unit, for judging that according to time sequencing after in adjacent two frames, whether the television image of a frame is identical with the television image of former frame successively;
Determining switch unit, during for being different in the first judging unit judged result, determining that described television equipment successful switch is to described second channel;
Computing unit, for according to the described switching time started of recording and described finishing switching time, calculates the channel switch response time of described television equipment.
6. device as claimed in claim 5, it is characterized in that, described device also comprises:
Second judging unit, for according to the image procossing principle preset, judges whether the television image of the first frame gathered is sprite;
When the television image that the second judging unit judges the first frame gathered is sprite, according to time sequencing, described first judging unit, specifically for by present frame, judges after in adjacent two frames, whether the television image of a frame is sprite successively;
Describedly determine switch unit, specifically for when the first judging unit judged result is no, determine that described television equipment successful switch is to described second channel.
7. device as claimed in claim 6, is characterized in that, described second judging unit, specifically for: utilize the television image of Gauss algorithm to the present frame gathered to carry out denoising; Television image after denoising is carried out to the conversion of color model, and extract color component; Whether the television image judging present frame according to described color component is sprite.
8. device as claimed in claim 5, it is characterized in that, described device also comprises:
Frequency point information acquiring unit, for before sending channel switching instruction to television equipment, obtains the frequency point information of current the first shown channel of described television equipment.
CN201410527742.XA 2014-10-09 2014-10-09 Method and device for detecting channel switching response time of television equipment CN104301714A (en)

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CN102244818A (en) * 2010-05-11 2011-11-16 北京四达时代软件技术股份有限公司 Method and device for responding to keystroke operation and digital set top box
CN103780898A (en) * 2012-10-23 2014-05-07 夏普株式会社 TV set testing method, device thereof and system thereof
CN103618921A (en) * 2013-12-03 2014-03-05 深圳Tcl新技术有限公司 Method and device for controlling television program broadcasting
CN103716689A (en) * 2013-12-26 2014-04-09 Tcl集团股份有限公司 Detection method for television channel changing and intelligent television set

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CN105978638A (en) * 2016-06-30 2016-09-28 北京交大思诺科技股份有限公司 Tester and test method for response time of portable transponder
CN108012184A (en) * 2016-11-02 2018-05-08 深圳市优朋普乐传媒发展有限公司 A kind of video switching playback method and device

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Application publication date: 20150121