CN106101797A - A kind of screen recording method and touch TV - Google Patents
A kind of screen recording method and touch TV Download PDFInfo
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- CN106101797A CN106101797A CN201610544116.0A CN201610544116A CN106101797A CN 106101797 A CN106101797 A CN 106101797A CN 201610544116 A CN201610544116 A CN 201610544116A CN 106101797 A CN106101797 A CN 106101797A
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- video signal
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-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4122—Peripherals receiving signals from specially adapted client devices additional display device, e.g. video projector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
Abstract
The embodiment of the invention discloses a kind of screen recording method and touch TV, arranging signal processing apparatus between TV motherboard and display screen, signal processing apparatus receives the video signal from TV motherboard and audio signal；Video signal is divided into the first video signal and the second video signal by signal processing apparatus；Signal processing apparatus by the first video signal transmission to display screen；Second video signal and audio signal are carried out hybrid coding and obtain coding signal by signal processing apparatus；Described first coding signal is transferred to video recording device by recording signal output port by signal processing apparatus.Before video signal transmission is to display screen, it is transferred to signal processing apparatus, after signal processing apparatus reception video signal and audio signal, output coding signal, to video recording device, reduces while improving the picture effect recorded and takies processor and memory source in touch TV motherboard.
Description
Technical field
The present invention relates to TV technology, particularly relate to a kind of screen recording method and touch TV.
Background technology
Along with the development of TV tech, touch TV and be dissolved into the life of people.As it is shown in figure 1, touch electricity
All include TV motherboard 1 and display screen 2 depending on identical with conventional television, TV motherboard 1 is provided with processor 3, video signal
Outfan 4 and audio signal output end 5.Processor 3 is for processing video, the audio signal received by wired or wireless.
The display screen 2 that the video signal processed is transferred to touch TV by VT 4 plays out, audio signal
It is transferred to touch the outer of TV by audio signal output end 5 and puts equipment broadcasting Tong Bu with video signal.But with traditional tv
Unlike machine, the display screen 2 touching TV is a kind of touch operable screen, may be implemented in display by touching display screen 2
The operations such as arbitrarily writing, revise on screen 2, annotation.Therefore touch TV and be applied to school instruction, company's meeting by more and more
In field.
Recording may be needed to achieve for touching TV screen content in teaching or in meeting, facilitate follow-up
Viewing.Existing method for recording as in figure 2 it is shown, use video recording device 6 image content of display screen 2 is recorded, its
The recording camera lens of middle video recording device 6 is towards the display screen 2 touching TV.TV, from as active illuminating equipment, has one
Fixed display refreshing frequency, and picture can be made when operator touch display screen constantly to switch so that record regarding out
Frequency there will be video pictures flicker.And in recording process, operator can frequently walk about before display screen 2, complete aobvious
Show amendment or the switching of content.So TV image may be blocked by operator, causes recording picture the best.
It is to utilize the processor touched in TV motherboard by television video frequency signal for the settling mode that the problems referred to above are traditional
It is converted into the binary number storage of correspondence, then utilizes the binary number of storage to be converted into pixel data thus form video literary composition
Part.Or general screen scraping software is installed on TV, captures each two field picture of tv display screen, and by image frame by frame
Synthetic video.Although these two kinds of methods can solve the best problem of picture that video recording device is recorded, but these two kinds of sides
Method is required for taking the processor touched in TV motherboard and memory source in the process of implementation, and impact touches the normal behaviour of TV
Make or Consumer's Experience.
Summary of the invention
The embodiment of the present invention provide a kind of screen recording method and touches TV, improving the picture effect recorded
Reduce simultaneously and processor and memory source in touch TV motherboard are taken.
The embodiment of the invention discloses following technical scheme:
A kind of screen recording method, arranges a signal processing apparatus, described method bag between TV motherboard and display screen
Include:
Described signal processing apparatus receives the video signal from TV motherboard and audio signal；
Described video signal is divided into the first video signal and the second video signal by described signal processing apparatus；
Described signal processing apparatus by described first video signal transmission to display screen；
Described second video signal and described audio signal are carried out hybrid coding and obtain first by described signal processing apparatus
Coding signal；
Described first coding signal is transferred to video record by recording signal output port by described signal processing apparatus
Equipment.
A kind of screen recording method, arranges a signal processing apparatus, described method bag between TV motherboard and display screen
Include:
Described signal processing apparatus receives the video signal from TV motherboard and audio signal；
Described video signal and described audio signal hybrid coding are obtained the second coding signal by described signal processing apparatus；
Described second coding signal is divided into the 3rd coding signal and the 4th coding signal by described signal processing apparatus；
Described 3rd coding signal is exported to video record by described signal processing apparatus by recording signal output port
Equipment；
Described signal processing apparatus decodes the 3rd video signal from described 4th coding signal；
Described signal processing apparatus by described 3rd video signal transmission to display screen.
A kind of touch TV, including TV motherboard and display screen, also includes signal processing apparatus；
Described signal processing apparatus includes: the first signal distributor and the first signal adapter,
Described first signal distributor electrically connects with described first signal adapter；Described first signal distributor is also distinguished
Electrically connect with TV motherboard, display screen；Described first signal adapter is the most respectively with TV motherboard, recording signal output port the most even
Connecing, described recording signal output port is for being connected with video recording device；
Described first signal distributor, for receiving the video signal from described TV motherboard, by described video signal
It is divided into the first video signal and the second video signal, and gives described display screen by described first video signal transmission, by described
Second video signal transmission gives described first signal adapter；
Described first signal adapter, for receiving the audio signal from described TV motherboard, by described audio signal
Carry out hybrid coding with described second video signal and obtain the first coding signal, and by described first numbering signal by described
Recording signal output port is transferred to video recording device.
A kind of touch TV, including TV motherboard and display screen, also includes signal processing apparatus；
Described signal processing apparatus includes: secondary signal transducer, secondary signal allotter and the 3rd signal adapter；
Described secondary signal allotter respectively with secondary signal transducer, the 3rd signal adapter and recording signal outfan
Mouth connects, and described recording signal output port is for being connected with video recording device；Described secondary signal transducer also with TV
Mainboard electrically connects, and described 3rd signal adapter also electrically connects with display screen；
Described secondary signal transducer, for receiving the video signal from described TV motherboard and audio signal, by institute
State video signal and obtain the second coding signal with described audio signal hybrid coding, and described second coding signal is transferred to
Described secondary signal allotter；
Described secondary signal allotter, for being divided into the 3rd coding signal and the 4th coding letter by described second coding signal
Number, and described 3rd coding signal is transferred to described video recording device by recording signal output port, by described the
Four coding signals are transferred to described 3rd signal adapter；
Described 3rd signal adapter, for decoding the 3rd video signal from described 4th coding signal, and will
Described 3rd video signal transmission gives described display screen.
The embodiment of the invention discloses a kind of screen recording method and touch TV, setting between TV motherboard and display screen
Putting a signal processing apparatus, described signal processing apparatus receives the video signal from TV motherboard and audio signal；Described letter
Described video signal is divided into the first video signal and the second video signal by number processing means；Described signal processing apparatus is by described
First video signal transmission is to display screen；Described second video signal is carried out by described signal processing apparatus with described audio signal
Hybrid coding obtains coding signal；Described first coding signal is passed by described signal processing apparatus by recording signal output port
It is defeated by video recording device.Before described video signal transmission is to display screen, first it is transferred to described signal processing apparatus, institute
State signal processor to carry out described video signal processing acquisition the first video signal and the second video signal, regard described first
Frequently signal is transferred to display screen, then sets being transferred to video record after described second TV signal and audio signal hybrid coding
Standby, the signal received is decoded being obtained with the display content identical with display screen by video recording device, improves
The picture effect recorded.And processing means self just can complete the process to audio-video signal, reduce touching TV master
On plate, processor and memory source takies.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation touching TV in prior art；
Fig. 2 is the schematic diagram recorded in prior art and touch telescreen；
Fig. 3 is the flow chart of a kind of screen recording method that the embodiment of the present invention provides；
Fig. 4 is the flow chart of the another kind of screen recording method that the embodiment of the present invention provides；
Fig. 5 is a kind of structural representation touching TV that the embodiment of the present invention provides
Fig. 6 is the structural representation of a kind of signal distributor in signal processing apparatus in Fig. 5；
Fig. 7 is the another kind of structural representation touching TV that the embodiment of the present invention provides；
In Fig. 1-7, symbol table is shown as:
1-TV motherboard, 2-display screen, 3-processor, 4-VT, 5-audio signal output end, 6-video
Recording arrangement, 7-signal processing apparatus, 71-the first signal distributor, 711-the first resistance, 712-the second resistance, 72-first believes
Number transducer, 73-secondary signal transducer, 74-secondary signal allotter, 75-the 3rd signal adapter.
Detailed description of the invention
For the technical scheme making those skilled in the art be more fully understood that in the present invention, real below in conjunction with the present invention
Execute the accompanying drawing in example, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, all should belong to present invention protection
Scope.
Seeing Fig. 3, be the flow chart of a kind of screen recording method that the embodiment of the present invention provides, method includes:
S101, signal processing apparatus receives the video signal from TV motherboard and audio signal.
Touch TV and be firstly received the signal of the television content needing broadcasting, by the processor in TV motherboard to electricity
The signal of the television content needing to play depending on receiving processes, and parses video signal and audio signal.Believe with video
Number corresponding with audio signal, touch and in the TV motherboard of TV, be all correspondingly provided with VT mouth and audio frequency letter
Number output port.In the present embodiment, signal processing apparatus is arranged between TV motherboard and display screen so that the video of output
Signal and audio signal are entered in signal processing apparatus by respective port.Signal processing apparatus receives from TV motherboard
Two paths of signals.Further, video signal and audio signal that reception is come by signal processing apparatus can cache, according to
Need content to be processed corresponding video signal and audio signal to be taken out to process.
S102, video signal is divided into the first video signal and the second video signal by signal processing apparatus.
After the video signal that in S101, signal processing apparatus receives, video signal is carried out being divided into by signal processing apparatus
One video signal and the second video signal, particularly as follows:
After the video signal that signal processing apparatus receives, video signal is replicated, it is thus achieved that two-path video signal, i.e.
First video signal and the second video signal.Certainly, the first video signal and the second video signal corresponding be exactly original regarding
Frequently the video signal that signal and duplication obtain, the video information comprised in the first video signal and the second video signal is consistent
's.
Video signal is divided into the first video signal and the second video signal, except above-mentioned carry out video signal replicating with
Outward, it is also possible to be input in the circuit of a parallel output by the video signal received, the video that output two-way feature is identical
Signal.That is it is sent to receiving video signal in a Parallel Design circuit that can export two paths of signals, by also
The characteristic of connection circuit understands, and the two paths of signals of output is consistent with the signal of input, the i.e. first video signal and the second video
Signal all uses the raw video signal received identical.
S103, signal processing apparatus by the first video signal transmission to display screen.
According in S102, signal processing apparatus will receive video signal and be divided into the first video signal and the second video letter
Number.So that the display screen touching TV can normally show video content, signal processing apparatus can be by the first video letter
Number and the second video signal in arbitrary road signal be transferred to display screen.In the present embodiment, the first video signal chosen passes
It is defeated by display screen.
S104, the second video signal and audio signal are carried out hybrid coding and obtain coding signal by signal processing apparatus.
The the first video signal output obtained in S102 gives display screen, and the second video signal needs to be transferred to video record
Equipment.But the second simple video signal is image information, and the coded system of current video signal is likely to not be inconsistent
Close the needs recorded.Even if the coded system of the second video signal meets the needs of recording arrangement, video can be transferred to smoothly
Recording arrangement, then the content that recording arrangement finally exports only has image not have sound, is the most also not meet touch television screen
The requirement that curtain is recorded.Accordingly, it would be desirable to the second video signal and audio signal are carried out hybrid coding.Particularly as follows:
Presetting the first frame frequency, typically can arrange the first frame frequency is 60HZ.By the audio signal that receives according to the first frame
Frequency carries out framing, according to institute first, second video signal is preset frame frequency and carries out framing.Then by the audio signal after framing with
Second video signal synchronizes frame by frame, and the mixed signal after synchronization encodes again, it is thus achieved that coding signal.Due to conventional video record
The signal that control equipment can receive is HDMI form, and the most above-mentioned coding performs according to HDMI coding standard.
S105, the first coding signal is transferred to video record by recording signal output port and sets by signal processing apparatus
Standby.
Recording signal output port it is provided with, the first coding letter obtained after S104 hybrid coding on signal processing apparatus
Number, the first coding signal is transferred to video recording device by recording signal output port by signal processing apparatus.Video record
Equipment, receives the first coding signal, is then decoded the first coding signal.Further, permissible during coding in S104
Key set in advance is used to take scrambled.After video recording device receives the first coding signal of encryption, according to
Same key is decrypted.The first coding signal that so video recording device comes by receiving signal processing apparatus transmission is also
It is decoded, completes the recording of telescreen.
Embodiments provide a kind of screen recording method, arrange between TV motherboard and display screen at a signal
Reason device.Before video signal transmission is to display screen, being first transferred to signal processing apparatus, signal processor is to institute's video letter
Number carry out processing and obtain the first video signal and the second video signal, by the first video signal transmission to display screen, then by the
The first coding signal after two TV signals and audio signal hybrid coding is transferred to video recording device, and video recording device will
The the first coding signal received is decoded being obtained with the display content identical with display screen, and whole recording process reduces
To touching the processor of TV self, the taking of internal memory, improve the picture effect of recording simultaneously.
Seeing Fig. 4, the embodiment of the present invention additionally provides another screen recording method, and method includes:
S201, signal processing apparatus receives from the video signal of TV motherboard and audio signal, referring specifically to S101,
This repeats no more.
S202, video signal and audio signal hybrid coding are obtained the second coding signal by signal processing apparatus.
Unlike the embodiments above, the signal processing apparatus in the present embodiment receives the video from TV motherboard
After signal and audio signal, the most just video signal and audio signal are carried out hybrid coding.Preset the second frame frequency, second
It is identical that frame frequency can preset frame frequency with first in S104, according to second, audio signal is preset frame frequency and carries out framing, by video
Signal is preset frame frequency according to second and is carried out framing.Synchronize the audio signal after framing and video signal the most frame by frame, after synchronizing
Audio frequency, video signal carry out hybrid coding, it is thus achieved that second coding signal.In view of the reason illustrated in S104, coded system is excellent
Choosing uses HDMI coding standard to encode.
In the present embodiment, the most just video signal and audio signal are carried out hybrid coding, it is adaptable to some special electricity
Depending on signal, it is not suitable for directly being allocated.If being first decoded processing, decoded signal is more prone to
Process.The concrete signal format according to TV motherboard output is relevant, does not repeats them here.
S203, the second coding signal is divided into the 3rd coding signal and the 4th coding signal by signal processing apparatus.
Get in S202 second coding signal is assigned as the 3rd coding signal and the 4th coding signal, concrete mode
It is referred to mode in S102.The first is to be replicated by the second coding signal, it is thus achieved that one replicates signal, such 3rd coding
Signal and the 4th coding signal then correspond to the second coding signal and replicate the duplication signal of the second coding signal acquisition.The second
It is exactly that the second coding signal is input in the circuit of parallel output, the coding signal that output two-way is identical, the i.e. the 3rd coding letter
Number and the 4th coding signal, the second coding signal got in the 3rd coding signal of output and the 4th coding signal and S202
Identical.
S204, the 3rd coding signal is exported and sets to video record by recording signal output port by signal processing apparatus
Standby.
Recording signal output port it is provided with, the 3rd coding signal that signal processing apparatus obtains on signal processing apparatus
After, the 3rd coding signal is transferred to video recording device by recording signal output port by signal processing apparatus.By in S203
Before the 3rd coding signal got exports to video recording device, can enter according to predetermined double secret key the 3rd coding signal
Row encryption.Ciphering process can also be carried out during hybrid coding in S202, if just added when encoding the second coding signal
Close, then the 3rd coding signal and the 4th coding signal are the coding signal of encryption, for being transferred to the of video recording device
Three coding signals, video recording device can be decrypted.
The 4th corresponding coding signal then also needs to be decoded, and is then transferred to display screen.If the 4th coding signal
Encrypted, then also need to the 4th coding signal is decrypted, add unnecessary trouble.It is therefore preferred that
To the 3rd coding signal encryption in S204.
S205, signal processing apparatus decodes the 3rd video signal from the 4th coding signal.
Owing to the 4th coding signal is the coding signal obtained according to predetermined coding standard, and the inside there is also audio frequency
Signal, inapplicable with directly spread out of to display screen.It is thus desirable to be decoded processing to the 4th coding signal, it is thus achieved that the 3rd video
Signal, the 3rd video signal decoded is consistent with the video signal that initial TV motherboard exports.It is pointed out that due to
Four coding signals are audio frequency and video hybrid coding signals, after the 4th coding signal decoding process, can decode the 3rd video signal
With the second audio signal, the second audio signal is identical with original audio signal.Pass owing to having only to the 3rd video signal
It is defeated by display screen to show, therefore for the second audio signal discard processing parsed.
S206, signal processing apparatus by the 3rd video signal transmission to display screen, after display screen obtains the 3rd video signal,
The television content that normal display raw video signal is corresponding.
The screen recording method that the present embodiment provides, unlike the first screen recording method, obtains video signal
After audio signal, just video signal and audio signal are carried out hybrid coding, obtain the second coding signal.According to the second coding
Signal acquisition the 3rd coding signal and the 4th coding signal, be transferred directly to the letter of video recording device by the 3rd coding signal
Number, compare the first screen recording method, but also corresponding to solving a certain class and needing first to be decoded, the electricity of coded treatment
Depending on signal.The screen recording method that the present embodiment provides takies the touch processor of TV self, the feelings of internal memory in minimizing equally
The picture effect of recording is improved under condition.
The embodiment of the present invention additionally provides a kind of touch TV, sees Fig. 5, including TV motherboard 1 and display screen 2, also wraps
Include signal processing apparatus 7.Wherein, signal processing apparatus 7 includes the first signal distributor 71 and the first signal adapter 72.First
Signal distributor 71 electrically connects with the first signal adapter 72.
First signal distributor 71 electrically connects with TV motherboard 1, display screen 2 the most respectively；It is provided with on signal processing apparatus
Recording signal output port, the first signal adapter 72 is connected with TV motherboard 1, recording signal output port the most respectively, records
Signal output port is for being connected with video recording device 6；
First signal distributor 71, for receiving the video signal from TV motherboard 1, is divided into first to regard by video signal
Frequently signal and the second video signal, and by the first video signal transmission to display screen 2, give first by the second video signal transmission
Signal adapter 72；
First signal adapter 72, for receiving the audio signal from TV motherboard 1, by audio signal and the second video
Signal carries out hybrid coding and obtains the first coding signal, and is transferred to by recording signal output port by the first numbering signal
Video recording device 6.
Seeing Fig. 6, signal distributor 71 can be parallel output circuit, two inputs of parallel output circuit and TV
Mainboard 1 electrically connects, and two outfans of parallel output circuit electrically connect with signal adapter 72, display screen 2 respectively.
Two output branch roads of above-mentioned parallel output circuit, are respectively provided with the first resistance 711 and the second resistance 712, and first
Resistance 711 is identical with the resistance of the second resistance 712.Parallel output circuit needs strict PCB design, and such guarantee exports
The integrity of signal.Parallel output circuit selected by signal distributor 71, and design is simple, and considers from hardware aspect, more supernumerary segment
About cost.
The touch TV that the present embodiment provides, including TV motherboard 1, display screen 2 and signal processing apparatus 7, signal processing
Device 7 includes signal distributor 71 and signal adapter 72.Signal distributor 71 video signal is divided into the first video signal and
Second video signal, signal adapter 72 receives the second video signal come from signal distributor 71 transmission, by the second video
The audio signal that signal comes with TV motherboard 1 transmission carries out hybrid coding, it is thus achieved that coding signal is transferred to video recording device 6.
Whole processing procedure all completes in signal processing apparatus, decreases and takies TV motherboard processor and internal memory, it is ensured that touch
The fluency of TV, and can obtain after being transferred to the signal decoding of video recording device 6 and initially export with TV motherboard 1
The signal that audio frequency and video are consistent, improves the picture effect of recording.
The embodiment of the present invention additionally provides another kind of touch TV, sees Fig. 7, and the touch TV in the present embodiment includes electricity
Depending on mainboard and display screen, also include signal processing apparatus.Unlike the touch TV provided from above-mentioned touch television embodiment,
In the present embodiment, signal processing apparatus includes: secondary signal transducer 73, secondary signal allotter 74 and the 3rd signal adapter
75。
Signal processing apparatus 7 in the present embodiment is again provided with recording signal output port, secondary signal allotter 74
It is connected with secondary signal transducer the 73, the 3rd signal adapter 75 and recording signal output port respectively, recording signal outfan
Mouth is for being connected with video recording device 6；Secondary signal transducer 73 also electrically connects with TV motherboard 1, the 3rd signal adapter
75 also electrically connect with display screen 2；
Secondary signal transducer 73, for receiving the video signal from TV motherboard 1 and audio signal, by receive
Video signal and audio signal hybrid coding obtain the second coding signal, and the second coding signal is transferred to secondary signal divides
Orchestration 74.
Secondary signal allotter 74, for the second coding signal being divided into the 3rd coding signal and the 4th coding signal, with
And the 3rd coding signal is transferred to video recording device 6 by recording signal output port, the 4th coding signal is transferred to
3rd signal adapter 75.
3rd signal adapter 75, for decoding the 3rd video signal from the 4th coding signal, and regards the 3rd
Frequently signal is transferred to display screen 2.Owing to the 4th coding signal is audio-video mixed signal, the 3rd transducer 73 is from the 4th coding letter
The 3rd video signal and the second audio signal can be decoded in number simultaneously, be transferred to display screen 2 and have only to the 3rd video signal, will
Second audio signal discard processing.
The touch TV that the present embodiment provides, including TV motherboard 1, display screen 2 and signal processing apparatus 7, signal processing
Device 7 includes: secondary signal transducer 73, secondary signal allotter 74 and the 3rd signal adapter 75, secondary signal transducer
First 73 carry out hybrid coding to the video signal received and audio signal obtains the second coding signal.Secondary signal allotter
Second coding signal is divided into the 3rd coding signal and the 4th coding signal by 74, is encoded the 3rd by recording signal output port
Signal is transferred to video recording device 6, and the 4th coding signal is transferred to secondary signal transducer 73.Receive the sound of TV motherboard
After video signal, whole signal processing just can complete in signal processing apparatus 7, decreases and takies at TV motherboard
Reason device and internal memory, and improve the picture effect of recording.
In this specification, between each embodiment, identical similar part sees mutually, and each embodiment stresses
Be all the difference with other embodiments.For device embodiment, implement owing to it is substantially similar to method
Example, so describing fairly simple, relevant part sees the part of embodiment of the method and illustrates.Device described above is real
Executing example is only schematically, and the wherein said unit that illustrates as separating component can be or may not be and physically divide
Opening, the parts shown as unit can be or may not be physical location, i.e. may be located at a place, or also
Can be distributed on multiple NE.Some or all of module therein can be selected according to the actual needs to realize this
The purpose of embodiment scheme.Those of ordinary skill in the art, in the case of not paying creative work, are i.e. appreciated that and real
Execute.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like is used merely to one
Individual entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operate it
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant are intended to
Contain comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those
Key element, but also include other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Other identical element is there is also in including the process of described key element, method, article or equipment.
Claims (10)
1. a screen recording method a, it is characterised in that signal processing apparatus, institute are set between TV motherboard and display screen
The method of stating includes:
Described signal processing apparatus receives the video signal from TV motherboard and audio signal；
Described video signal is divided into the first video signal and the second video signal by described signal processing apparatus；
Described signal processing apparatus by described first video signal transmission to display screen；
Described second video signal and described audio signal are carried out hybrid coding and obtain the first coding by described signal processing apparatus
Signal；
Described first coding signal is transferred to video recording device by recording signal output port by described signal processing apparatus.
Screen recording method the most according to claim 1, it is characterised in that video signal is divided by described signal processing apparatus
It is the first video signal and the second video signal includes:
Described signal processing apparatus replicates described video signal, respectively obtains described first video signal and described second video letter
Number；
Or,
Parallel for described video signal two-way is exported by described signal processing apparatus, and the video signal in this two-way is respectively described
One video signal and described second video signal.
Screen recording method the most according to claim 1, it is characterised in that the second video is believed by described signal processing apparatus
Number with audio signal carry out hybrid coding, including:
Described audio signal is preset frame frequency according to first and is carried out framing by described signal processing apparatus；
Described second video signal is preset frame frequency according to described first and is carried out framing by described signal processing apparatus；
Described signal processing apparatus synchronizes the described audio signal after framing and described second video signal frame by frame；
Described signal processing apparatus will synchronize after described audio signal, described second video signal carry out hybrid coding.
4. a screen recording method a, it is characterised in that signal processing apparatus, institute are set between TV motherboard and display screen
The method of stating includes:
Described signal processing apparatus receives the video signal from TV motherboard and audio signal；
Described video signal and described audio signal hybrid coding are obtained the second coding signal by described signal processing apparatus；
Described second coding signal is divided into the 3rd coding signal and the 4th coding signal by described signal processing apparatus；
Described 3rd coding signal is exported to video recording device by described signal processing apparatus by recording signal output port；
Described signal processing apparatus decodes the 3rd video signal from described 4th coding signal；
Described signal processing apparatus by described 3rd video signal transmission to display screen.
Screen recording method the most according to claim 4, it is characterised in that described signal processing apparatus by video signal with
Audio signal carries out hybrid coding, including:
Described audio signal is preset frame frequency according to second and is carried out framing by described signal processing apparatus；
Described video signal is preset frame frequency according to second and is carried out framing by described signal processing apparatus；
Described signal processing apparatus synchronizes the described audio signal after framing and described video signal frame by frame；
Described signal processing apparatus will synchronize after audio frequency, video signal carry out hybrid coding.
Screen recording method the most according to claim 4, it is characterised in that described signal processing apparatus is by the second coding letter
Number it is divided into the 3rd coding signal and the 4th coding signal, including:
Described signal processing apparatus replicates described second coding signal, respectively obtains described 3rd coding signal and described 4th volume
Code signal；
Or,
Described signal processing apparatus is by described second coding signal parallel two-way output, and the coding signal in this two-way is respectively institute
State the 3rd coding signal and described 4th coding signal.
7. touch a TV, including TV motherboard and display screen, it is characterised in that also include signal processing apparatus；
Described signal processing apparatus includes: the first signal distributor and the first signal adapter,
Described first signal distributor electrically connects with described first signal adapter；Described first signal distributor the most respectively with electricity
Depending on mainboard, display screen electrical connection；Described first signal adapter is connected with TV motherboard, recording signal output port the most respectively,
Described recording signal output port is for being connected with video recording device；
Described first signal distributor, for receiving the video signal from described TV motherboard, is divided into described video signal
First video signal and the second video signal, and give described display screen by described first video signal transmission, by described second
Video signal transmission gives described first signal adapter；
Described first signal adapter, for receiving the audio signal from described TV motherboard, by described audio signal and institute
State the second video signal and carry out hybrid coding acquisition the first coding signal, and by described first coding signal by described recording
Signal output port is transferred to video recording device.
Touch TV the most according to claim 7, it is characterised in that described first signal distributor, specifically for: replicate
Described video signal, respectively obtains described first video signal and described second video signal；
Or,
Described first signal distributor, including parallel two-way output circuit, two inputs of described two-way output circuit are equal
Being connected with the described VT of described TV motherboard, two outfans of described two-way output circuit are respectively with described
First signal adapter and the electrical connection of described display screen.
9. touch a TV, including TV motherboard and display screen, it is characterised in that also include signal processing apparatus；
Described signal processing apparatus includes: secondary signal transducer, secondary signal allotter and the 3rd signal adapter；
Described secondary signal allotter is respectively with secondary signal transducer, the 3rd signal adapter and recording signal output port even
Connecing, described recording signal output port is for being connected with video recording device；Described secondary signal transducer also with TV motherboard
Electrical connection, described 3rd signal adapter also electrically connects with display screen；
Described secondary signal transducer, for receiving the video signal from described TV motherboard and audio signal, regards described
Frequently signal and described audio signal hybrid coding obtain the second coding signal, and are transferred to described by described second coding signal
Secondary signal allotter；
Described secondary signal allotter, for described second coding signal is divided into the 3rd coding signal and the 4th coding signal,
And described 3rd coding signal is transferred to described video recording device by recording signal output port, compile the described 4th
Code signal is transferred to described 3rd signal adapter；
Described 3rd signal adapter, for decoding the 3rd video signal, and by described from described 4th coding signal
3rd video signal transmission gives described display screen.
Touch TV the most according to claim 9, it is characterised in that described secondary signal allotter, specifically for: multiple
Make described second coding signal, respectively obtain described 3rd coding signal and described 4th coding signal；
Or,
Described secondary signal allotter, including parallel two-way output circuit, two inputs of described two-way output circuit are equal
Being connected with the described VT of described TV motherboard, two outfans of described two-way output circuit are respectively with described
Recording signal output port and described 3rd signal adapter electrical connection.
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| CN201610544116.0A CN106101797A (en) | 2016-07-12 | 2016-07-12 | A kind of screen recording method and touch TV |
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