CN102752703A - Mono-channel input and double-channel output method, device and television - Google Patents
Mono-channel input and double-channel output method, device and television Download PDFInfo
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- CN102752703A CN102752703A CN201210217416XA CN201210217416A CN102752703A CN 102752703 A CN102752703 A CN 102752703A CN 201210217416X A CN201210217416X A CN 201210217416XA CN 201210217416 A CN201210217416 A CN 201210217416A CN 102752703 A CN102752703 A CN 102752703A
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Abstract
The invention discloses a mono-channel input and double-channel output method. The method comprises the following steps of converting an input analog audio signal into a digital signal; outputting the digital signal from an input channel to a first output channel, and buffering the digital signal, and outputting the buffered digital signal through a second output channel. The invention further discloses a mono-channel input and double-channel output device and a television. According to the method, the device and the television provided by the invention, as the input analog audio signal is converted into the digital signal, the digital signal input from the left input channel is output to the left output channel and is buffered, and the buffered digital signal is output through the right output channel, the beneficial effect that the televisions with different hardware structures can realize mono-channel input and double-channel output; the performance of the television is improved, and the user experience is improved.
Description
Technical field
The present invention relates to TV technology, relate in particular to method, device and the television set of a kind of monophony input dual track output.
Background technology
Along with improving constantly of development of science and technology and people's living standard, television set has become one of object indispensable in people's daily life.
In order to be implemented in to television set input monophony information source, can export dual track, prior art is improved the hardware device of television set mostly.A kind of common way of prior art is: RCA (Radio Corporation of America therein; The Radio Corporation of America) increases a reed on the terminal; Go up at PCB (Printed circuit board, printed circuit board (PCB)) simultaneously and increase corresponding circuit connection.When this RCA terminal did not insert holding wire, left and right sides input sound channel linked together, and only inserted one road sound and can realize dual track output; After this RCA terminal inserted holding wire, reed separated because of receiving mechanical force, and left and right sides input sound channel also separates thereupon, thereby realizes the function of stereo input and output.This way of prior art has increased the production cost of RCA terminal, has increased the wiring area of PCB, and then has increased the manufacturing cost of television set to a great extent.To present popular LCD (Liquid Crystal Display; LCDs) television set; Because of this LCD television set adopts ultrathin design; MINI JACK terminal (a kind of miniature binding post) and patchcord are mostly adopted in the audio frequency and video input, are applicable to that the above-mentioned traditional approach of RCA terminal is no longer suitable for MINI JACK terminal.Therefore, how to realize being applicable to that the monophony input dual track output of the television set with different hardware structure is that present television manufacturer is needed one of problem of solution badly.
Summary of the invention
Main purpose of the present invention provides method, device and the television set of a kind of monophony input dual track output, is intended to all can realize the output of monophony input dual track to the television set with different hardware structure.
The invention discloses the method for a kind of monophony input dual track output, may further comprise the steps:
Convert the simulated audio signal of input into digital signal;
Export said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
Preferably, said input sound channel is left input sound channel, and said first output channels is left output channels, and said second output channels is right output channels.
Preferably, saidly export said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the said digital signal with buffer memory comprises through the output of second output channels again:
When the word selection position in system's master chip is 0, exports said digital signal to said left output channels by said left input sound channel, and said digital signal is carried out buffer memory;
When said word selection position is 1, the said digital signal of buffer memory is exported through said right output channels.
Preferably, saidly export said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory; Said digital signal with buffer memory also comprises step after the step of second output channels output again:
The said digital signal of said left output channels and the output of right output channels is amplified, and the said digital signal after will amplifying is exported simultaneously.
The invention also discloses the device of a kind of monophony input dual track output, comprising:
Signal conversion module is used for converting the simulated audio signal of input into digital signal;
The sound channel transport module is used for exporting said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
Preferably, said input sound channel is left input sound channel, and said first output channels is left output channels, and said second output channels is right output channels.
Preferably, said sound channel transport module specifically comprises:
Buffer unit is used for when the word selection position of system's master chip is 0, exporting said digital signal to said left output channels by said left input sound channel, and said digital signal is carried out buffer memory;
Signal output unit is used for when said word selection position is 1, and the said digital signal of buffer memory is exported through said right output channels.
Preferably, the device of said monophony input dual track output also comprises:
The signal amplification module be used for the said digital signal of said left output channels and the output of right output channels is amplified, and the said digital signal after will amplifying is exported simultaneously.
The present invention also discloses a kind of television set, and said television set comprises:
Signal conversion module is used for converting the simulated audio signal of input into digital signal;
The sound channel transport module is used for exporting said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
Preferably, said input sound channel is left input sound channel, and said first output channels is left output channels, and said second output channels is right output channels.
Preferably, said sound channel transport module specifically comprises:
Buffer unit is used for when the word selection position of system's master chip is 0, exporting said digital signal to said left output channels by said left input sound channel, and said digital signal is carried out buffer memory;
Signal output unit is used for when said word selection position is 1, and the said digital signal of buffer memory is exported through said right output channels.
Preferably, the device of said monophony input dual track output also comprises:
The signal amplification module be used for the said digital signal of said left output channels and the output of right output channels is amplified, and the said digital signal after will amplifying is exported simultaneously.
The present invention converts digital signal into through the simulated audio signal with input; Export said digital signal to left output channels by left input sound channel; And said digital signal is carried out buffer memory, and the method for again digital signal of buffer memory being exported through right output channels has realized all realizing the beneficial effect that monophony input dual track is exported to the television set with different hardware structure; Improve the performance of television set, promoted user experience.
Description of drawings
Fig. 1 is the method first embodiment schematic flow sheet of monophony input dual track of the present invention output;
Fig. 2 is the transfer of data sketch map of monophony output mode in the method for monophony of the present invention input dual track output;
Fig. 3 is the method second embodiment schematic flow sheet of monophony input dual track of the present invention output;
Fig. 4 is that the method for monophony input dual track of the present invention output is implemented overall process one embodiment schematic flow sheet;
Fig. 5 is the device first example structure sketch map of monophony input dual track of the present invention output;
Fig. 6 is sound channel transport module one an example structure sketch map in the device of monophony of the present invention input dual track output;
Fig. 7 is the device second example structure sketch map of monophony input dual track of the present invention output;
Fig. 8 is television set one an example structure sketch map of the present invention;
Fig. 9 is the transfer of data sketch map of the device neutral body sound output mode of monophony input dual track of the present invention output.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Further specify technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, Fig. 1 is the method first embodiment schematic flow sheet of monophony input dual track of the present invention output; As shown in Figure 1, the method for monophony input dual track of the present invention output may further comprise the steps:
Step S01, with the input simulated audio signal convert digital signal into;
The simulated audio signal of left side input sound channel and right input sound channel generally will pass through prime amplifier and adjust said simulated audio signal amplitude after getting into master chip.In a preferred embodiment, the amplitude of said simulated audio signal is adjusted according to the amplitude of the analog signal that follow-up analog-to-digital conversion correlation module can receive; The amplitude range of the analog signal that said analog-to-digital conversion correlation module generally can receive is 0 ~ 2.5V (Volt; Volt); Usually the amplitude of the simulated audio signal of input is all bigger, need decay to this simulated audio signal, to satisfy the amplitude requirement of said analog-to-digital conversion correlation module; Certainly, if the amplitude of this simulated audio signal is smaller, when being not easy to follow-up analog-to-digital conversion, can be with the amplitude that increases this simulated audio signal.
The said simulated audio signal that the analog-to-digital conversion correlation module will pass through the amplitude adjustment converts digital signal into, is convenient to follow-up transfer of data.Because in the transmission course of sound channel, transmission be digital signal, this analog-to-digital conversion is convenient to the data processing in the transmission course.
Step S02, export said digital signal to first output channels by an input sound channel, and said digital signal carried out buffer memory, again with the said digital signal of buffer memory through the output of second output channels.
In a preferred embodiment, the output mode of selecting said digital signal is the monophony output mode.When " monophony " pattern, only when left input sound channel was imported simulated audio signal, this simulated audio signal exported left output channels to and copies to the master chip buffer memory simultaneously through after analog-to-digital conversion; Export the digital signal in the master chip buffer memory to right output channels again; If when right input sound channel is imported simulated audio signal, will not have signal to export left output channels and right output channels to.
In a preferred embodiment, under " monophony " pattern, said digital signal will be carried out mixed processing through DSP (Digital Signal Processor, digital signal processor) Audio Processing correlation module.With reference to Fig. 2, Fig. 2 is the transfer of data sketch map of monophony output mode in the method for monophony of the present invention input dual track output; As shown in Figure 2, the transmission of n byte be the data of L channel, n+1 byte still can be transmitted the data of L channel.Particularly; Word selection position WS (Word Select) is set in system's master chip; According to the clock Clock cycle of system; When said word selection position WS is 0, export said digital signal to left output channels and also copy to simultaneously in the buffer memory of master chip, the L channel data 2 that are about among Fig. 2 copy in the buffer memory; When said word selection position WS is 1, be that L channel data 2 export right output channels to the said digital signal in the said buffer memory; In the following one-period of transfer of data, when said word selection position WS was 0, continuing digital signal was that L channel data 3 copy in the buffer memory, and so circulation is carried out.The digital signal of left side output channels and right output channels output exports the rear end power amplifier to simultaneously after amplifying, like loudspeaker etc.
Present embodiment converts digital signal into through the simulated audio signal with input; This digital signal is exported to left output channels and this digital signal is carried out buffer memory by left input sound channel; The method of again this digital signal of buffer memory being exported through right output channels; Have the beneficial effect that all can realize the output of monophony input dual track to television set, improved the performance of television set with different hardware structure.
With reference to Fig. 3, Fig. 3 is the method second embodiment schematic flow sheet of monophony input dual track of the present invention output; Method second embodiment of monophony input dual track of the present invention output and the difference of above-mentioned first embodiment are after step S02, also to comprise step S03; Present embodiment only specifically describes step S03, and step S01 that the method for monophony input dual track of the present invention output is related and step S02 repeat no more at this please with reference to the specific descriptions of first embodiment.
As shown in Figure 3, in the method for monophony of the present invention input dual track output, at step S02, export said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory; Again the said digital signal in the buffer memory is also comprised step after the step of second output channels output:
Step S03, the said digital signal of said left output channels and right output channels output is amplified, and the said digital signal after will amplifying is exported simultaneously.
In a preferred embodiment; The power amplifier correlation module carries out power amplification to the rear end with said digital data transmission for left side output channels and right output channels; And the digital signal that will pass through amplification is exported simultaneously; As the digital signal after will amplifying outputs to left horn and right horn etc., the good audio frequency effect of the monophony input dual track output of realization expectation simultaneously.
To combine specific embodiment below, the method that further describes monophony input dual track of the present invention output is implemented overall process.With reference to Fig. 4, Fig. 4 is that the method for monophony input dual track of the present invention output is implemented overall process one embodiment FB(flow block); As shown in Figure 4; The main flow process that the method for monophony input dual track of the present invention output is implemented overall process is following: simulated audio signal is after the input sound channel input; Through prime amplifier 10 adjustment signal amplitudes, get into analog-to-digital conversion 20 correlation modules again and carry out analog-to-digital conversion earlier, obtain digital signal; According to predefined different output mode; Handle correlation module at DSP30 said digital signal is carried out different mixed processing; And the digital data transmission after will handling to rear end power amplifier 40 correlation modules; After power amplification, export rear end equipment 50 simultaneously to like loudspeaker etc., accomplish whole flow process.Particularly; Under the monophony output mode, only when left input sound channel input simulated audio signal, convert this voice signal into digital signal after; Export left output channels to and copy to the master chip buffer memory simultaneously; Again the digital signal in the buffer memory is outputed to right output channels, after rear end power amplifier correlation module amplifies, export the digital signal of left output channels and right output channels output to left horn and right horn simultaneously; Only when right input sound channel is imported simulated audio signal, there is not voice signal to output to left output channels, right output channels, left horn and right horn.Under stereo output mode, only when left input sound channel was imported simulated audio signal, this voice signal only outputed to left output channels and left horn; Only when right input sound channel was imported simulated audio signal, this voice signal only outputed to right output channels and right horn.
The method that present embodiment is exported after amplifying through digital data transmission to the rear end power amplifier correlation module that will pass through the master chip processing simultaneously has the further beneficial effect of elevator system performance, has further promoted user experience.
With reference to Fig. 5, Fig. 5 is the device first example structure sketch map of monophony input dual track of the present invention output; As shown in Figure 5, the device of monophony input dual track of the present invention output comprises:
The simulated audio signal of left side input sound channel and right input sound channel generally will be adjusted said simulated audio signal amplitude after getting into master chip.In a preferred embodiment, the amplitude of said simulated audio signal is adjusted according to the amplitude of the analog signal that follow-up signal modular converter 01 can receive; The amplitude range of the analog signal that said signal conversion module 01 generally can receive is 0 ~ 2.5V (Volt; Volt); Usually the amplitude of the simulated audio signal of input is all bigger, need decay to this simulated audio signal, to satisfy the amplitude requirement of said signal conversion module 01; Certainly, if the amplitude of this simulated audio signal is smaller, when being not easy to follow-up analog-to-digital conversion, with the amplitude that increases this simulated audio signal.The said simulated audio signal that signal conversion module 01 will be passed through adjustment converts digital signal into, is convenient to follow-up transfer of data.Because in the transmission course of sound channel, transmission be digital signal, this analog-to-digital conversion is convenient to the data processing in the transmission course.
Sound channel transport module 02 is used for exporting said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
In a preferred embodiment, it is the monophony output mode that output mode is set.When " monophony " pattern; Only when left input sound channel is imported simulated audio signal; After signal conversion module 02 was carried out analog-to-digital conversion with this simulated audio signal, the digital signal that will obtain after sound channel transport module 02 will be changed exported left output channels to and copies to the master chip buffer memory simultaneously; Export the digital signal in the master chip buffer memory to right output channels again; If when right input sound channel was imported simulated audio signal, sound channel transport module 02 is transmission of digital signals to left output channels and right output channels not.
In a preferred embodiment, said sound channel transport module 02 specifically comprises: buffer unit 021 and signal output unit 022.With reference to Fig. 6, Fig. 6 is sound channel transport module one an example structure sketch map in the device of monophony of the present invention input dual track output.As shown in Figure 6, in the device of monophony input dual track of the present invention output, sound channel transport module 02 specifically comprises:
With reference to the transfer of data sketch map of monophony output mode in the method for Fig. 2 monophony of the present invention input dual track output, as shown in Figure 2, what n byte transmitted is the data of L channel, and n+1 byte still can be transmitted the data of L channel.Particularly; Word selection position WS (Word Select) is being set in system's master chip; According to the clock Clock cycle of system; When said word selection position WS was 0, buffer unit 021 duplicated said digital signal in the buffer memory of master chip, and promptly buffer unit 021 copies to the L channel data 2 among Fig. 2 in the buffer memory; When said word selection position WS was 1, signal output unit 022 was that L channel data 2 export right output channels to the said digital signal in the said buffer memory; In the following one-period of transfer of data, when said word selection position WS was 0, it was that L channel data 3 copy in the buffer memory that buffer unit 021 continues digital signal, and so circulation is carried out.The digital signal of left side output channels and the output of right output channels exports the rear end power amplifier to, as exporting left horn and right horn etc. simultaneously to simultaneously after amplifying.
Present embodiment converts digital signal into through the simulated audio signal with input; Export this digital signal to left output channels by left input sound channel; And this digital signal is carried out buffer memory; Again the digital signal of buffer memory is exported through right output channels, had the beneficial effect that all can realize the output of monophony input dual track to television set, improved the performance of television set with different hardware structure.
With reference to Fig. 7, Fig. 7 is the device second example structure sketch map of monophony input dual track of the present invention output; Device second embodiment of monophony input dual track of the present invention output and the difference of first embodiment are that present embodiment has increased signal amplification module 03 on the basis of first embodiment; Present embodiment only specifically describes signal amplification module 03, and other related modules of device of monophony input dual track of the present invention output please with reference to above-mentioned related embodiment, repeat no more at this.
As shown in Figure 7, the device of monophony input dual track of the present invention output also comprises:
In a preferred embodiment; The said digital signal through signal conversion module 01 processing of 03 pair of sound channel transport module of signal amplification module, 02 transmission is carried out power amplification; And the digital signal that will pass through amplification is exported simultaneously; Digital signal after will amplifying like signal amplification module 03 outputs to left horn and right horn etc. simultaneously, realizes the monophony or the stereo good audio frequency output effect of expectation.
The device of monophony input dual track of the present invention output carries out the process of monophony input dual track output please with reference to the said embodiment of Fig. 4, repeats no more at this.
Output simultaneously after present embodiment amplifies through digital data transmission to the rear end power amplifier correlation module that will pass through the master chip processing has the further beneficial effect of elevator system performance, has further promoted user experience.
With reference to Fig. 8, Fig. 8 is television set one an example structure sketch map of the present invention.As shown in Figure 8, television set of the present invention comprises the device 100 of monophony input dual track output; To the description of the device 100 of said monophony input dual track output, please, repeat no more at this with reference to above-mentioned each related embodiment.
In technical field of television sets, the output mode of the digital signal that simulated audio signal obtains after analog-to-digital conversion mainly comprises: monophony output mode and stereo mode.Because select the output mode of digital signal different, the transmission means of this digital signal is also with difference.The device of monophony of the present invention input dual track output also can be according to the stereo output mode of selecting, will be by the said digital signal of left input sound channel input, and in chronological sequence sequence alternate exports said left output channels and right output channels to.
When the output mode of selecting was " stereo " pattern, said simulated audio signal obtained digital signal after treatment, respectively by said left output channels and the in chronological sequence sequence alternate output of right output channels.Particularly, when left input sound channel was imported simulated audio signal, this simulated audio signal only exported left output channels to; When right input sound channel was imported simulated audio signal, this simulated audio signal only exported right output channels to.
Particularly, with reference to Fig. 9, Fig. 9 is the transfer of data sketch map of the device neutral body sound output mode of monophony input dual track of the present invention output; As shown in Figure 9, when stereo output mode, the transmission of n-1 byte be right data, what then n byte transmitted is the data of L channel, and n+1 byte continues to transmit the data of R channel.Particularly, with the Clock clock cycle be reference, WS is 0 o'clock in the word selection position, transmission L channel data; WS is 1 o'clock in the word selection position, the transmission right data; Said digital signal promptly according to above-mentioned time order and function order, alternately exports left output channels and right output channels to.
Present embodiment also converts adjusted said audio signal into digital signal through the amplitude of the audio signal of adjustment input; When the monophony output mode; To export left output channels to by the said digital signal of left input sound channel input and copy to the master chip buffer memory simultaneously; Export the digital signal in the buffer memory to right output channels again; Have the beneficial effect that all can realize the output of monophony input dual track to television set, improved the performance of television set, promoted user experience with different hardware structure.
The above is merely the preferred embodiments of the present invention; Be not so limit its claim; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (9)
1. the method for monophony input dual track output is characterized in that, may further comprise the steps:
Convert the simulated audio signal of input into digital signal;
Export said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
2. the method for claim 1 is characterized in that, said input sound channel is left input sound channel, and said first output channels is left output channels, and said second output channels is right output channels.
3. method as claimed in claim 2 is characterized in that, saidly exports said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, and the said digital signal with buffer memory comprises through the output of second output channels again:
When the word selection position in system's master chip is 0, exports said digital signal to said left output channels by said left input sound channel, and said digital signal is carried out buffer memory;
When said word selection position is 1, the said digital signal of buffer memory is exported through said right output channels.
4. the method for claim 1 is characterized in that, saidly exports said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory; Said digital signal with buffer memory also comprises step after the step of second output channels output again:
The said digital signal of said left output channels and the output of right output channels is amplified, and the said digital signal after will amplifying is exported simultaneously.
5. the device of monophony input dual track output is characterized in that, comprising:
Signal conversion module is used for converting the simulated audio signal of input into digital signal;
The sound channel transport module is used for exporting said digital signal to first output channels by an input sound channel, and said digital signal is carried out buffer memory, the more said digital signal of buffer memory is exported through second output channels.
6. device as claimed in claim 5 is characterized in that, said input sound channel is left input sound channel, and said first output channels is left output channels, and said second output channels is right output channels.
7. device as claimed in claim 6 is characterized in that, said sound channel transport module specifically comprises:
Buffer unit is used for when the word selection position of system's master chip is 0, exporting said digital signal to said left output channels by said left input sound channel, and said digital signal is carried out buffer memory;
Signal output unit is used for when said word selection position is 1, and the said digital signal of buffer memory is exported through said right output channels.
8. device as claimed in claim 5 is characterized in that, also comprises:
The signal amplification module be used for the said digital signal of said left output channels and the output of right output channels is amplified, and the said digital signal after will amplifying is exported simultaneously.
9. a television set is characterized in that, said television set comprises the device of each described monophony input dual track output of claim 5 to 8.
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| CN114285910A (en) * | 2021-12-23 | 2022-04-05 | 号百信息服务有限公司 | System and method for remodeling communication terminal and internet audio format |
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Application publication date: 20121024 |