CN109345817A - Large screen system control method, device and electronic equipment - Google Patents
Large screen system control method, device and electronic equipment Download PDFInfo
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- CN109345817A CN109345817A CN201811172663.6A CN201811172663A CN109345817A CN 109345817 A CN109345817 A CN 109345817A CN 201811172663 A CN201811172663 A CN 201811172663A CN 109345817 A CN109345817 A CN 109345817A
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- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000005236 sound signal Effects 0.000 description 4
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- 238000004422 calculation algorithm Methods 0.000 description 2
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/451—Execution arrangements for user interfaces
- G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/04—Segmentation; Word boundary detection
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L15/00—Speech recognition
- G10L15/26—Speech to text systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
Abstract
This application provides a kind of large screen system control method, device and electronic equipments, wherein large screen system control method, comprising: receives the control information and location information that user sends；Wherein, location information is that the irradiation position of the light issued according to laser designator determines；Corresponding control instruction is determined according to the control information；Controlled device is determined according to location information；Controlled device is operated according to control instruction.The control information and location information that the embodiment of the present application is sent according to user can directly generate corresponding control instruction, can fast implement user and need operation to control object.
Description
Technical field
This application involves large screen control technology fields, in particular to a kind of large screen system control method, device
And electronic equipment.
Background technique
Currently, Field Force cannot directly operate the content of large screen, but need to send out in the usage scenario of large screen
The corresponding operator of cloth instruction notification operates, and operator needs to open large screen control software and carry out after receiving instruction
The operation of first step large screen window layout, further according to the information of target terminal, by the application program of remote desktop or user into
Row operation in detail, i.e. the control of this operation requires a great deal of time and manpower.
Summary of the invention
In view of this, the application's is designed to provide a kind large screen system control method, device and electronic equipment.
In a first aspect, the embodiment of the present application provides a kind of large screen system control method, comprising: receive what user sent
Control information and location information；Wherein, location information is that the irradiation position of the light issued according to laser designator determines；
Corresponding control instruction is determined according to the control information；Controlled device is determined according to location information；According to control instruction to controlled pair
As being operated.
Second aspect, the embodiment of the present application also provide a kind of large screen system control device, comprising: receiving module is used for
Receive the control information and location information that user sends；Wherein, location information is the light issued according to laser designator
What irradiation position determined；First determining module, for determining corresponding control instruction according to the control information；Second determining module,
For determining controlled device according to location information；Operation module, for being operated according to control instruction to controlled device.
The third aspect, the embodiment of the present application also provide a kind of electronic equipment, comprising: processor, memory and bus, storage
Device is stored with the controllable machine readable instructions of processor, when electronic equipment operation, by total between processor and memory
The step of line communication, the large screen system control method of any one is as above stated in control when machine readable instructions are controlled by processor.
Large screen system control method provided by the embodiments of the present application, the control information sent according to user and location information
Corresponding control instruction can be directly generated, user can be fast implemented and need operation to control object.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of flow chart of large screen system control method provided by the embodiment of the present application；
Fig. 2 shows the flow charts of another kind large screen system control method provided by the embodiment of the present application；
Fig. 3 shows a kind of schematic diagram of large screen system control method provided by the embodiment of the present application；
Fig. 4 shows a kind of functional block diagram of large screen system control device provided by the embodiment of the present application；
Fig. 5 shows the structural schematic diagram of a kind of electronic equipment provided by the embodiment of the present application.
Icon: 10- receiving module；The first determining module of 20-；The second determining module of 30-；40- operation module；100- processing
Device；200- memory；300- bus.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
Middle attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
It is some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, below to the application's provided in the accompanying drawings
The detailed description of embodiment is not intended to limit claimed scope of the present application, but is merely representative of the selected reality of the application
Apply example.Based on embodiments herein, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall in the protection scope of this application.
In view of in the related technology, in the usage scenario of extra large screen, or a certain speaker is inconvenient to operate
The usage scenario of screen, such as multimedia conferencing room, multi-media classroom, Police Command Center, monitoring center, speaker cannot be direct
The content of extra large screen is operated, but needs to issue the corresponding operator of instruction notification and operates, operator is receiving instruction
Afterwards, it needs to open extra large screen control software and carries out the operation of first step extra large screen window layout, further according to the letter of target terminal
Breath, is operated in detail by the application program of remote desktop or user, i.e. when the control of this operation needs to spend a large amount of
Between and manpower.In view of this, the embodiment of the present application provides a kind of large screen system control method, device and electronic equipment,
Various control technology is combined together, i.e., a variety of controlled devices is regarded as an entirety, is operated without intermediary operation person
Link, but the quick accurate linkage of control information realization directly issued according to speaker controls large screen system, below by
Embodiment is described.
The embodiment of the application first aspect provides a kind of flow chart of large screen system control method, such as Fig. 1 institute
Show, includes the following steps:
S101 receives control information and location information that user sends；Wherein, location information is according to laser designator institute
What the irradiation position of the light of sending determined；
S102 determines corresponding control instruction according to the control information；
S103 determines controlled device according to location information；
S104 operates controlled device according to control instruction.
Large screen system control method provided by the embodiments of the present application receives what user user sent in step s101
Control information and location information, wherein control information and location information can be sent by remote controler, be arranged on remote controler
There are laser beam emitting device, such as laser designator, for emitting laser, light that control system is issued according to laser designator
Irradiation position determines location information；In step s 102, control system parses the control information received, determines pair
The control instruction answered；In step s 103, control system judges the location information received, determines that the position is corresponding
Large screen, and then determine the corresponding controlled device of lower display content in the position；In step S104, according to obtained control
The operation to controlled device is realized in instruction.Such as, user is soft to large screen first area transmission opening video playing by remote controler
The voice messaging of part, i.e. control information, control system are confirmed to open First host according to the position of remote controler laser designation
Tencent's video jukebox software, and then determine control instruction be open Tencent's video jukebox software, controlled device is First
Host further carries out corresponding operation to controlled device according to control instruction control.
Illustrate the implementation procedure of large screen system control method with specific example below:
For example, in fire-fighting emergent command centre, speaker according to the content of speech need to the content of large screen display into
Row adjustment, is such as changed to map by PPT for the display content of the second position in large screen, specifically, can be by having voice
The remote controler of interaction and transmitting laser function sends control information and location information to control system, that is, passes through remote controler
Sound-recording function enrolls voice messaging, and voice messaging is one of control information, and here, voice messaging can be for " in second
Set display map ", the irradiation position for the light that location information can be issued from the laser designator on remote controler to large screen is true
Fixed, here, location information is the luminous point in laser irradiation to the large screen second position, wherein control system can be interaction clothes
Business device, for realizing the interaction of information between remote controler and large screen, control system can receive the control letter of remote controler transmission
Breath and location information, and control information and location information are parsed, corresponding control instruction is generated further according to control information,
Further, controlled device is determined according to location information, control instruction is finally sent to corresponding controlled device, with control
Controlled device executes control instruction, and here, controlled device is map server, splicer and large screen, corresponds to map and takes
The control instruction of business device is to open mapping program, and the control instruction corresponding to splicer is by map denotation the second of large screen
On position, finally, is realized by the above method and show map on the second position of large screen.
It should be noted that in step s101, for controlling information and be voice messaging, the control information of user's transmission
Specifically generated by following steps；
Step 1011, the audio signal that acquisition user issues；
Step 1012, audio signal is converted to digital signal；
Step 1013, digital signal is converted to audio file, and is sent to control system.
Specifically, in step 1011, user presses the voice key of remote controler, and remote controler microphone starts to issue user
Sound record；
In step 1012, audio signal is converted to digital signal by data processing module in remote controler, specifically, can be with
Using the mode of pulse width modulation (Pulse Width Modulation, PWM)；
In step 1013, the voice key that user unclamps remote controler terminates to record, and remote controler beats the digital signal of admission
It is bundled into audio file, and control system is sent to by bluetooth.
Between step S101 and step S102, further includes: carry out including at least speech terminals detection, sound to control information
One of frequency noise reduction, acoustic echo elimination, dereverberation processing are a variety of.
Specifically, the embodiment of the present application by control information be voice messaging for,.Wherein, speech terminals detection (Voice
Activity Detection, VAD), also known as speech endpoint detection, it is therefore an objective to identify and be eliminated for a long time in voice signal stream
The mute phase, with have the function that in the case where not reducing quality of service save traffic resource, it be IP phone application weight
Component part is wanted, silence suppression can also save bandwidth resources, the time delay end to end that user feels can be advantageously reduced,
I.e. speech terminals detection can accurately detect the initial position of the voice segments of audio signal, to isolate voice segments and non-
Voice segments (mute or noise) signal, can filter out unrelated non-speech audio, mitigate the calculation amount of subsequent processing, whole to improve
The real-time of body, moreover it is possible to effectively improve the performance of downstream algorithm；Audio defeat, during remote controler enrolls user voice,
Can there are air-conditioning, fan and other noises, noise jamming can reduce by noise reduction algorithm, improve signal-to-noise ratio, reduce rear end
The difficulty of speech recognition.
In one embodiment of the application, it is preferable that as shown in Figure 1, in step S102, determining pair according to the control information
The control instruction answered, comprising: directly transfer corresponding control instruction according to the control information.
In this embodiment, in order to meet the needs of multiplicity of subscriber, multiple common scenery control instructions can be preset, and
The instruction of each scenery control is associated with control information, for example, window is put into maximum control instruction and the first scene control
Information processed is corresponding, i.e., user, which need to only say, executes the first scene, and control system directly can transfer exit window according to the first scene correspondence
Mouth is put into maximum control instruction, and then is controlled according to the control instruction controlled device.The embodiment of the present application passes through pre-
If scene instructs the intention that can quickly realize user, the usage experience of user can be further promoted.
In one embodiment of the application, it is preferable that the flow chart of another large screen system control method is provided,
As shown in Fig. 2, including the following steps:
S201 receives control information and location information that user sends；Wherein, location information is according to laser designator institute
What the irradiation position of the light of sending determined；
Control information is converted to text information by S202；Based on text information, corresponding control instruction is determined；Wherein, it controls
Information processed is voice messaging；
S203 determines controlled device according to location information；
S204 operates controlled device according to control instruction.
In this embodiment, indoors under the small scene of the noises such as meeting room, Conference Hall, command centre, control information is excellent
It is selected as voice messaging, certain other kinds of control information also can be realized above-mentioned steps, and specifically, control system receives language
After message breath, voice messaging is first converted to text information, so that control system parses text information, to determine to control
System instruction.For example, text information is rotation broadcast window, text information is parsed, determines rotation broadcast window
Control instruction.
In one embodiment of the application, it is preferable that control instruction includes that server control instruction, camera control refer to
It enables, any one or more in splicer control instruction, matrix device control instruction and large screen control instruction；Server control
System instruction includes any of the following or various control instruction: mouse control instruction, Keyboard Control instruction, touch control instruction.
In this embodiment, by parsing to text information, specific control instruction can be parsed, it may be possible to right
The specific control instruction of video camera, such as the camera that furthers, capture screen, rotary head, since server includes mouse, key
Disk, touch screen etc., control instruction can be specific to the operations to above-mentioned component, for example, in the use of notebook personal computer
When, it is preferential that mouse or keyboard is selected to be operated, it is able to ascend operating efficiency；Using with touch screen computer in use,
It is preferential that touch screen is selected to be operated, it can be operated convenient for user.
In one embodiment of the application, it is preferable that controlled device includes server, video camera, splicer, matrix
It is any one or more in device, large screen；Server includes any of the following or a variety of controlled devices: video server,
Office Service device, map server, accuses server at presentation server.
In this embodiment, large screen system includes at least the control such as server, video camera, splicer, matrix device, large screen
Object processed, server are not limited to video server, Office Service device, presentation server, map server, accuse server.Example
Such as, user sends one section to control system by remote controler and shows the voice letter of map in the second position of matrix in large screen
Breath, control system parse it, are decomposed, and multiple sub- control instructions for different controlled devices are finally obtained, such as over the ground
The sub- control instruction of figure server is to open map, and the sub- control instruction to matrix device is control map denotation in large screen matrix
The second position.
In one embodiment of the application, it is preferable that text information includes following any one or more control parameters:
Handoff scenario, adjustment window, startup program, bolt down procedure, rotating platform, the camera lens that furthers, capture screen.
In this embodiment, for the intention of clear user, need to identify the specific control ginseng for including in text information
Number is precisely controlled controlled device with realizing.For example, speaker wishes to adjust the window in current large screen to maximum,
It is exactly control parameter that wherein window, which is adjusted to maximum,.
In the specific embodiment of the application, a kind of schematic diagram of large screen system control method, such as Fig. 3 are provided
Shown, specifically, user sends voice messaging by remote controler, and the light issued by remote controler is irradiated to large screen
Position determine location information, control system is parsed to voice messaging is received, and obtains multiple sub- control instructions, control system
System analyzes the location information received, determines multiple controlled devices, wherein sub- control instruction and controlled device one are a pair of
It answers, finally realizes control of the sub- control instruction to controlled device.
Based on the same inventive concept, it is additionally provided in the embodiment of the application second aspect and large screen system control method
Corresponding control device, the principle and the above-mentioned control of the embodiment of the present application solved the problems, such as due to the control device in the embodiment of the present application
Method processed is similar, therefore the implementation of device may refer to the implementation of method, and overlaps will not be repeated.
The embodiment of the application second aspect provides a kind of functional block diagram of large screen system control device, such as Fig. 4
It is shown, comprising:
Receiving module 10, for receiving the control information and location information of user's transmission；Wherein, location information is according to sharp
What the irradiation position for the light that optical indicator is issued determined；
First determining module 20, for determining corresponding control instruction according to the control information；
Second determining module 30, for determining controlled device according to location information；
Operation module 40, for being operated according to control instruction to controlled device.
In one embodiment of the application, it is preferable that the first determining module 20 is also used to: according to the control information directly
Transfer corresponding control instruction.
In one embodiment of the application, it is preferable that it is written to be also used to control information conversion for the first determining module 20
This information is based on text information, determines corresponding control instruction；Wherein, control information is voice messaging.
In one embodiment of the application, it is preferable that control instruction includes that terminal control instructs, camera control refers to
It enables, any one or more in splicer control instruction, matrix device control instruction and large screen control instruction；Terminal control
Instruction includes any of the following or various control instruction: mouse control instruction, Keyboard Control instruction, touch control instruction.
In one embodiment of the application, it is preferable that controlled device include terminal, video camera, splicer, matrix device,
It is any one or more in large screen；Terminal includes any of the following or a variety of controlled devices: video server, office clothes
Business device, map server, accuses server at presentation server.
In one embodiment of the application, it is preferable that text information includes following any one or more control parameters:
Handoff scenario, moving window, adjustment window level, startup program, plays PPT, plays audio, rotary flat adjustment window size
Platform, the camera lens that furthers, capture screen.
The embodiment of the application third aspect, as shown in figure 5, showing for a kind of electronic equipment provided by the embodiment of the present application
It is intended to, which includes: processor 100, memory 200 and bus 300, and it is controllable that memory 200 is stored with processor 100
Machine readable instructions are communicated between processor 100 and memory 200 by bus 300, machine can when electronic equipment operation
The step of large screen system control method of any one, is as above stated in control when reading instruction is controlled by processor 100.
The embodiment of the application fourth aspect provides a kind of computer readable storage medium, computer-readable storage medium
Computer program is stored in matter, computer program controls the large screen system control of any of the above-described when being run by processor 100
The step of method processed.
The computer program product of large screen system control method is carried out provided by the embodiment of the present application, including is stored
The computer readable storage medium of the controllable non-volatile program code of processor 100, the instruction that said program code includes
It can be used for controlling previous methods method as described in the examples, specific implementation can be found in embodiment of the method, and details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored, or does not control.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the controllable non-volatile computer-readable storage medium of a processor.Based on this understanding, the application
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) controls each embodiment institute of the application
State all or part of the steps of method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Finally, it should be noted that embodiment described above, the only specific embodiment of the application, to illustrate the application
Technical solution, rather than its limitations, the protection scope of the application is not limited thereto, although with reference to the foregoing embodiments to this Shen
It please be described in detail, those skilled in the art should understand that: anyone skilled in the art
Within the technical scope of the present application, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of the embodiment of the present application technical solution, should all cover the protection in the application
Within the scope of.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of large screen system control method characterized by comprising
Receive the control information and location information that user sends；Wherein, the location information is issued according to laser designator
Light irradiation position determine；
Corresponding control instruction is determined according to the control information；
Controlled device is determined according to the positional information；
The controlled device is operated according to the control instruction.
2. the method according to claim 1, wherein described determine that corresponding control refers to according to the control information
It enables, comprising:
The corresponding control instruction is directly transferred according to the control information.
3. the method according to claim 1, wherein described determine that corresponding control refers to according to the control information
It enables, comprising:
The control information is converted to text information；
Based on the text information, the corresponding control instruction is determined；
Wherein, the control information is voice messaging.
4. according to the method described in claim 3, it is characterized in that, the control instruction includes server control instruction, camera shooting
Any one or more in machine control instruction, splicer control instruction, matrix device control instruction and large screen control instruction；
The server control instruction includes any of the following or various control instruction: mouse control instruction, Keyboard Control refer to
It enables, touch control instruction.
5. according to the method described in claim 3, it is characterized in that,
The controlled device includes server, video camera, splicer, matrix device, any one or more in large screen；
The server includes any of the following or a variety of controlled devices: video server, Office Service device, presentation services
Device, accuses server at map server.
6. according to the method described in claim 3, it is characterized in that, the text information includes following any one or more controls
Parameter processed:
Handoff scenario, adjustment window, startup program, bolt down procedure, rotating platform, the camera lens that furthers, capture screen.
7. a kind of large screen system control device characterized by comprising
Receiving module, for receiving the control information and location information of user's transmission；Wherein, the location information is according to laser
What the irradiation position for the light that indicator is issued determined；
First determining module, for determining corresponding control instruction according to the control information；
Second determining module, for determining controlled device according to the positional information；
Operation module, for being operated according to the control instruction to the controlled device.
8. device according to claim 7, which is characterized in that the first determining module is also used to:
The corresponding control instruction is directly transferred according to the control information.
9. device according to claim 7, which is characterized in that
First determining module is also used to the control information being converted to text information, is based on the text information, determines and corresponds to
The control instruction；
Wherein, the control information is voice messaging.
10. a kind of electronic equipment characterized by comprising processor, memory and bus, memory is stored with processor can
The machine readable instructions of control pass through bus communication, machine readable finger when electronic equipment operation between processor and memory
The step of enabling the control such as large screen system control method of any one of claims 1 to 7 when being controlled by processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172663.6A CN109345817A (en) | 2018-10-09 | 2018-10-09 | Large screen system control method, device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811172663.6A CN109345817A (en) | 2018-10-09 | 2018-10-09 | Large screen system control method, device and electronic equipment |
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| CN109345817A true CN109345817A (en) | 2019-02-15 |
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| CN201811172663.6A Pending CN109345817A (en) | 2018-10-09 | 2018-10-09 | Large screen system control method, device and electronic equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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