CN107635063A - A kind of audio output device and terminal - Google Patents
A kind of audio output device and terminal Download PDFInfo
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- CN107635063A CN107635063A CN201710749417.1A CN201710749417A CN107635063A CN 107635063 A CN107635063 A CN 107635063A CN 201710749417 A CN201710749417 A CN 201710749417A CN 107635063 A CN107635063 A CN 107635063A
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Abstract
The embodiment of the invention discloses a kind of audio output device and terminal, wherein, audio output device includes：Signal conditioning unit, switch element and multiple signal output units；Signal conditioning unit is connected with the control unit of terminal；Switch element is connected with control unit, switch element includes fixing end and multiple movable ends, fixing end is used to connect signal conditioning unit, multiple signal output units are connected with multiple movable ends in switch element respectively, the digital audio and video signals that signal conditioning unit is sent to control unit are modulated, and then obtain target square-wave signal, switch element determines that goal activities end is turned on according to the control signal that control unit is sent from multiple movable ends, and then all or part of signal output unit output target square-wave signal into multiple signal output units, avoid when audio frequency power amplifier, because the analog signal of transmission causes the phenomenon of signal interference to other functional units of terminal inner.
Description
Technical field
The invention belongs to electronic technology field, more particularly to a kind of audio output device and terminal.
Background technology
Nowadays terminal (such as smart mobile phone, tablet personal computer) has become not retrievable important work in people's Working Life
Tool.Although the existing terminal audio output unit good by configuring performance, and then bring preferable audio playing body to user
Test, be simulated audio signal in the input signal of the audio output unit of existing terminal still, and the simulated audio signal is pair
The data signal of control unit output carries out digital-to-analogue conversion and obtained so that power amplifier unit is being amplified to simulated audio signal
During, it is necessary between unit module transmission of analogue signal, easily other functional units to terminal inner cause letter
Number interference.
The content of the invention
The embodiment of the present invention provides a kind of audio output device and terminal, can be avoided while audio frequency power amplifier is realized
Other functional units to terminal inner cause the phenomenon of signal interference.
In a first aspect, the embodiments of the invention provide a kind of audio output device, for defeated located at terminal, the audio
Going out device includes：
Signal conditioning unit, for being connected with the control unit of the terminal, the signal conditioning unit is used for institute
The digital audio and video signals for stating control unit transmission are modulated, and obtain target square-wave signal；
Switch element, for being connected with described control unit, it includes fixing end and multiple movable ends, and the fixing end is used
In connecting the signal conditioning unit, the switch element is used for according to the control signal that described control unit is sent from described more
Determine that goal activities end is turned on, and exports the target square-wave signal in individual movable end；
Multiple signal output units, it is connected respectively with the multiple movable end in the switch element, the signal is defeated
Go out unit to be used to receive and propagate the target square-wave signal.
Second aspect, the embodiment of the present invention also provide a kind of terminal, including audio output device as described above.
The embodiments of the invention provide a kind of audio output device and terminal, wherein, audio output device includes：Signal is adjusted
Save unit, switch element and multiple signal output units；Signal conditioning unit is connected with the control unit of terminal；Switch element
It is connected with control unit, switch element includes fixing end and multiple movable ends, and fixing end is used to connect signal conditioning unit, multiple
Signal output unit is connected with multiple movable ends in switch element respectively, the numeral that signal conditioning unit is sent to control unit
Audio signal is modulated, and then obtains target square-wave signal, and switch element is according to the control signal that control unit is sent from more
Determine that goal activities end is turned in individual movable end, and then all or part of signal output into multiple signal output units
Unit export target square-wave signal, avoid when audio frequency power amplifier because transmission analog signal to terminal inner its
His functional unit causes the phenomenon of signal interference.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it is required in being described below to embodiment to use
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of audio output device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation for audio output device that another embodiment of the present invention provides；
Fig. 3 is a kind of a kind of concrete structure schematic diagram for audio output device that another embodiment of the present invention provides；
Fig. 4 is a kind of a kind of physical circuit figure for audio output device that another embodiment of the present invention provides；
Fig. 5 is a kind of another concrete structure schematic diagram for audio output device that another embodiment of the present invention provides；
Fig. 6 is a kind of another physical circuit figure for audio output device that another embodiment of the present invention provides；
Fig. 7 is a kind of another concrete structure schematic diagram for audio output device that another embodiment of the present invention provides；
Fig. 8 is a kind of another the physical circuit figure for audio output device that another embodiment of the present invention provides；
Fig. 9 is a kind of another concrete structure schematic diagram for audio output device that another embodiment of the present invention provides；
Figure 10 is a kind of structural representation of terminal provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
It should be appreciated that ought be in this specification and in the appended claims in use, term " comprising " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but it is not precluded from one or more of the other feature, whole
Body, step, operation, element, component and/or its presence or addition for gathering.
It is also understood that the term used in this description of the invention is merely for the sake of the mesh for describing specific embodiment
And be not intended to limit the present invention.As used in description of the invention and appended claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singulative, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in description of the invention and appended claims is
Refer to any combinations of one or more of the associated item listed and be possible to combine, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determining " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In the specific implementation, the terminal described in the embodiment of the present invention is including but not limited to such as with touch sensitive surface
The mobile phone, laptop computer or tablet PC of (for example, touch-screen display and/or touch pad) etc it is other just
Portable device.It is to be further understood that in certain embodiments, the equipment is not portable communication device, but with tactile
Touch the desktop computer of sensing surface (for example, touch-screen display and/or touch pad).
In discussion below, the terminal including display and touch sensitive surface is described.It is, however, to be understood that
It is that terminal can include one or more of the other physical user-interface device of such as physical keyboard, mouse and/or control-rod.
Terminal supports various application programs, such as one or more of following：Drawing application programs, demonstration
Application programs, word-processing application program, website create application programs, disk imprinting application programs, electricity
Sub-table application programs, game application program, telephony application program, videoconference application program, electricity
Sub- mail applications program, instant messaging applications program, take exercise and support application programs, photo management application
Program program, digital camera application program program, digital camera application programs, web-browsing application programs, numeral
Music player application program program and/or video frequency player application programs.
The various application programs that can be performed in terminal can use at least one of such as touch sensitive surface
Public physical user-interface device.It can adjust and/or change between application programs and/or in corresponding application programs program
Become in the one or more functions and terminal of touch sensitive surface the corresponding information shown.So, the public physics frame of terminal
Structure (for example, touch sensitive surface) can support the various application programs with user interface directly perceived and transparent for a user
Program.
Fig. 1 is referred to, Fig. 1 is a kind of structural representation of audio output device provided in an embodiment of the present invention.Such as Fig. 1 institutes
Show, a kind of audio output device 100 includes：Signal conditioning unit 10, switch element 20 and signal output unit 30.Specifically
Ground：
Signal conditioning unit 10, it is connected with the control unit 111 of terminal 200, signal conditioning unit 10 is used for single to control
The digital audio and video signals that member 111 is sent are modulated, and obtain target square-wave signal.
Switch element 20, it is connected with control unit 111, it includes fixing end and multiple movable ends, and fixing end is used to connect
Signal conditioning unit 10, switch element 20 are used to be determined from multiple movable ends according to the control signal that control unit 111 is sent
Goal activities end is turned on, and exports target square-wave signal.
Multiple signal output units 30, it is connected respectively with multiple movable ends in switch element 20, signal output unit is used
In reception and communication target square-wave signal.
In all embodiments of the invention, terminal 200 can be the mobile terminals such as smart mobile phone, tablet personal computer, but not
It is limited to this, can also is other-end, for example, audio amplifier, player etc., are not limited herein.
It should be noted that signal conditioning unit 10 is located at the first circuit board 110 of terminal 200 with control unit 111
On, first circuit board 110 can be the mainboard of terminal 200.By by signal conditioning unit 10 and control unit 111 with located at the
On one circuit board 110, can avoid between signal conditioning unit 10 and control unit 111 because in the various boards, it is necessary to
Longer signal wire and then cause line loss phenomenon.
During in order to reduce audio output, the signal interference of the internal element of terminal 200, control unit 111 and Signal Regulation list
What is transmitted between member 10 is digital audio and video signals.Digital audio and video signals can be that terminal 200 is received after voice signal by controlling
Unit 111 is converted to voice signal, or terminal 200 play audio file after when control unit 111 export
Signal corresponding with audio file content.
For example, when carrying out voice communication between terminal 200 and another terminal, terminal 200 receives what another terminal was sent
After voice signal, digital audio and video signals corresponding with voice signal are exported.The reception control unit 111 of signal conditioning unit 10 is sent
Digital audio and video signals, and the digital audio and video signals are modulated, obtain target square-wave signal.
It is understood that control unit 111 can be the processor CPU of terminal 200.
In actual applications, switch element 20 can be located on the second circuit board of terminal 200, can also be located at the first electricity
On road plate 110, wherein, when switch element 20 is on the first circuit board 110 of terminal 200, the fixing end of switch element 20
It can be connected by the cabling on first circuit board 110 with signal conditioning unit 10, when switch element 20 can be located at terminal 200
Second circuit board on when, the fixing end of switch element 20 can pass through the cabling on flexible PCB and signal conditioning unit 10
It is connected.
It should be noted that control signal is used to determine goal activities end from multiple movable ends of switch element 20, and
Turn on the goal activities end so that the signal output unit 30 being connected with the goal activities end receives and communication target square wave letter
Number.Goal activities end can be the part or all of movable end in multiple movable ends.
Switch element 20 is connected with signal conditioning unit 10, and the control signal sent according to control unit 111 is from multiple
Determine that goal activities end is turned in movable end, and then the part or all of signal output into multiple signal output units 30
Unit 30 exports target square-wave signal.Due to the mesh transmitted between goal activities end and part or all of signal output unit 30
Mark square-wave signal is square-wave signal, i.e., non-analog signal, avoids causing excessive energy loss in the line.
In such scheme, audio output device includes：Signal conditioning unit, switch element and multiple signal output lists
Member；Signal conditioning unit is connected with the control unit of terminal；Switch element is connected with control unit, and switch element includes fixing end
With multiple movable ends, fixing end is used to connect signal conditioning unit, multiple signal output units respectively with it is more in switch element
Individual movable end is connected, and the digital audio and video signals that signal conditioning unit is sent to control unit are modulated, and then obtain target side
Ripple signal, switch element determine that goal activities end is led according to the control signal that control unit is sent from multiple movable ends
It is logical, and then all or part of signal output unit output target square-wave signal into multiple signal output units, avoid
When audio frequency power amplifier, because the analog signal of transmission causes the phenomenon of signal interference to other functional units of terminal inner.
Fig. 2 is referred to, Fig. 2 is a kind of structural representation for audio output device that another embodiment of the present invention provides.Such as
Shown in Fig. 2, a kind of audio output device 100 includes：Signal conditioning unit 10, switch element 20 and signal output unit 30.
Specifically：
Signal conditioning unit 10, it is connected with the control unit 111 of terminal 200, signal conditioning unit 10 is used for single to control
The digital audio and video signals that member 111 is sent are modulated, and obtain target square-wave signal.
Switch element 20, it is connected with control unit 111, it includes fixing end and multiple movable ends, and fixing end is used to connect
Signal conditioning unit 10, switch element 20 are used to be determined from multiple movable ends according to the control signal that control unit 111 is sent
Goal activities end is turned on, and exports target square-wave signal.
Multiple signal output units 30, it is connected respectively with multiple movable ends in switch element 20, signal output unit is used
In reception and communication target square-wave signal.
Radio-cell 40, it is connected with switch element 20, radio-cell 40 is used to target square-wave signal being converted to the first nothing
Line signal, and first wireless signal is sent to wireless device 300.
It should be noted that radio-cell 40 can also be connected with control unit 111, sent out for receiving wireless device 300
The second wireless singal sent.Specifically, radio-cell 40 includes antenna circuit, and the antenna circuit is used for wireless device 300
The first wireless signal is sent, or receives the second wireless singal that wireless device 300 is sent, and the second wireless singal is sent
To control unit 111.Control unit 111 parses to second wireless singal, and then is sent and the to signal conditioning unit 10
The corresponding digital audio and video signals of two wireless signals.
The control signal that control unit 111 is sent to switch element 20 so that switch element 20 is according to control signal from more
Determine that goal activities end is turned in individual movable end, and then cause the part or all of output in multiple signal output units 30
Unit 30 receives target square-wave signal, and communication target square-wave signal.
Fig. 3 shows a kind of a kind of concrete structure schematic diagram for audio output device that another embodiment of the present invention provides.
As shown in figure 3, as a kind of possibility realized of the present embodiment, signal output unit 30 includes：
Power amplifier unit 31, it is connected with the first movable end in multiple movable ends and the second movable end, power amplifier unit 31 is used for
If goal activities end is the first movable end and the second movable end, target square-wave signal is amplified, and play amplification after
Target square-wave signal.
It should be noted that power amplifier unit 31, on the second circuit board 120 of terminal 200, second circuit board 120 can be with
For the platelet in terminal.In order to realize the stereo sound effect of power amplifier unit 31, power amplifier unit 31 can include two inputs, described
Two inputs are connected with the first movable end in multiple movable ends and the second movable end respectively.When goal activities end is the first work
When moved end and the second movable end, target square-wave signal includes living from the first object square-wave signal of the first movable end output and second
Second target square-wave signal of moved end output, wherein, first object square-wave signal differs with the second target square-wave signal, and is
The signal of stereo sound effect matching, and then when being played the target square-wave signal after amplification, the effect of three-dimensional sound is presented.
For example, when goal activities end is the first movable end and the second movable end, target square-wave signal includes living from first
The first object square-wave signal of moved end output and the second target square-wave signal of the second movable end output, wherein, first object side
Ripple signal is the signal that L channel plays, and the second target square-wave signal is the signal that R channel plays, and makes the target side after amplification
When ripple signal is played, L channel and R channel are simultaneously emitted by sound, and then the effect of three-dimensional sound is presented.
Fig. 4 shows a kind of a kind of physical circuit figure for audio output device that another embodiment of the present invention provides.Such as Fig. 4
Shown, signal conditioning unit 10 includes：First codec U1, the second codec U2, the first modulator T1 and second are adjusted
Device T2 processed.
First codec U1 input is connected with the first output end of control unit 111, the second codec U2's
Input is connected with the second output end of control unit 111, and the first codec U1 output end is defeated with the first modulator T1's
Enter end to be connected, the second codec U2 output end is connected with the second modulator T2 input, the first modulator T1 output
End and the second modulator T2 output end are used to connecting valve unit 20.
First codec U1, the first digital audio and video signals for being sent to control unit 111 carry out digital-to-analogue conversion, obtained
To the first simulated audio signal.
First modulator T1, for being modulated according to preset reference signal to the first simulated audio signal, obtain first
Target square-wave signal.
Second codec U2, the second digital audio and video signals for being sent to control unit 11 carry out digital-to-analogue conversion, obtained
To the second simulated audio signal.
Second modulator T2, for being modulated according to preset reference signal to the second simulated audio signal, obtain second
Target square-wave signal.
Target square-wave signal includes first object square-wave signal and/or the second target square-wave signal.
As a kind of possibility realized of the present embodiment, preset reference signal can be triangular signal, the first modulator T1
The first simulated audio signal is modulated according to the triangular signal, obtains first object square-wave signal；Second modulator T2
The second simulated audio signal is modulated according to the triangular signal, obtains the second target square-wave signal.
It should be noted that first object square-wave signal can be L channel play signal or R channel play signal,
Corresponding second target square-wave signal can be R channel play signal or L channel play signal.
As shown in figure 4, power amplifier unit 31 includes the first amplifier D1, the second amplifier D2, the first loudspeaker D3 and the
Two loudspeaker D4.
First amplifier D1 signal input part is connected with the first movable end, the first amplifier D1 signal output part and
One loudspeaker D3 is connected, and the second amplifier D2 signal input part is connected with the second movable end, and the second amplifier D2 signal is defeated
Go out end with the second loudspeaker D4 to be connected.
First amplifier D1 is amplified to first object square-wave signal, and the first object square-wave signal after amplification is sent out
The first loudspeaker D3 is given to play out.
Second amplifier D2 is amplified to the second target square-wave signal, and the second target square-wave signal after amplification is sent out
The second loudspeaker D4 is given to play out.
For example, when control unit 111 only sends the first digital audio and video signals to the first codec U1, Signal Regulation list
The first codec U1 in member 10 carries out digital-to-analogue conversion to the first digital audio and video signals, obtains the first simulated audio signal.The
One modulator T1 is modulated according to preset reference signal to the first simulated audio signal, obtains first object square-wave signal.By
The second digital audio and video signals are not sent in control unit 111 to the second codec U2 so that target square-wave signal only includes the
One target square-wave signal.The first amplifier D1 in power amplifier unit 31 is amplified to the first object square-wave signal, and will be put
First object square-wave signal after is sent to the first loudspeaker D3 and played out, and now the first loudspeaker D3 plays monophonic sound
Frequently.
For another example work as control unit 111 sends the first digital audio and video signals to the first codec U1, and also compiled to second
When decoder U2 sends the second digital audio and video signals, the first codec U1 in signal conditioning unit 10 is to the first DAB
Signal carries out digital-to-analogue conversion, obtains the first simulated audio signal；Second codec U2 enters line number to the second digital audio and video signals
Mould is changed, and obtains the second simulated audio signal.First modulator T1 enters according to preset reference signal to the first simulated audio signal
Row modulation, obtains first object square-wave signal；Second modulator T2 enters according to preset reference signal to the second simulated audio signal
Row modulation, obtains the second target square-wave signal.Because target square-wave signal includes first object square-wave signal and the second target side
Ripple signal so that the first amplifier D1 in power amplifier unit 31 is amplified to the first object square-wave signal, and after being put into
First object square-wave signal be sent to the first loudspeaker D3 and play out, the second amplifier D2 is to the 2nd target square-wave signal
It is amplified, and the second target square-wave signal after being put into is sent to the second loudspeaker D4 and played out, therefore first raises one's voice
Device D3 and the sound that the second loudspeaker D4 is sent are corresponding with first object square-wave signal and the second target square-wave signal respectively, realize
Stereosonic effect.
Amplify it is understood that the first amplifier D1 is amplified to first object square-wave signal for equal proportion, second
Amplifier D2 is amplified to the second target square-wave signal to be amplified for equal proportion.
Fig. 5 shows a kind of another concrete structure signal for audio output device that another embodiment of the present invention provides
Figure.As shown in figure 5, as another possibility realized of the present embodiment, signal output unit 30 includes：
Earphone interface unit 32, including the first signal input part, secondary signal input, the first signal output part and
Binary signal output end, the first signal input part and secondary signal input are respectively used to the 3rd activity being connected in multiple movable ends
End and the 4th movable end, the first signal output part are used to be connected earphone 130, earphone interface unit 32 with secondary signal output end
If being the 3rd movable end and the 4th movable end for goal activities end, sending target square-wave signal to earphone 130 plays out.
It should be noted that when goal activities end is the 3rd movable end and four movable ends, target square-wave signal includes
From the 3rd target square-wave signal of the 3rd movable end output and the 4th target square-wave signal of the 4th movable end output, wherein, the
Three target square-wave signals differ with the 4th target square-wave signal, and are the signal of stereo sound effect matching, and then after making amplification
When target square-wave signal is played, the effect of three-dimensional sound is presented.
For example, when goal activities end is the 3rd movable end and four movable ends, target square-wave signal includes living from the 3rd
3rd target square-wave signal of moved end output and the 4th target square-wave signal of the 4th movable end output, wherein, the 3rd target side
Ripple signal is the signal that L channel plays, and the 4th target square-wave signal is the signal that R channel plays, and makes the target side after amplification
When ripple signal is played, L channel and R channel are simultaneously emitted by sound, and then the effect of three-dimensional sound is presented.
Fig. 6 shows a kind of another physical circuit figure for audio output device that another embodiment of the present invention provides.Such as
Shown in Fig. 6, signal conditioning unit 10 includes the 3rd codec U3, the 4th codec U4, the 3rd modulator T3 and the 4th
Modulator T4.
3rd encoding and decoding U3 input is connected with the 3rd output end of control unit, the 4th encoding and decoding U4 input with
4th output end of control unit is connected, and the 3rd encoding and decoding U3 output end is connected with the 3rd modulator T3 input, and the 4th
Encoding and decoding U4 output end is connected with the 4th modulator T4 input, the 3rd modulator T3 output end and the 4th modulator T4
Output end be used to connecting valve unit.
3rd encoding and decoding U3, digital-to-analogue conversion is carried out for the 3rd digital audio and video signals that are sent to control unit, obtain the
Three simulated audio signals.
3rd modulator T3, for being modulated according to preset reference signal to the 3rd simulated audio signal, obtain the 3rd
Target square-wave signal.
4th encoding and decoding U4, digital-to-analogue conversion is carried out for the 4th digital audio and video signals that are sent to control unit, obtain the
Four simulated audio signals.
4th modulator T4, for being modulated according to preset reference signal to the 4th simulated audio signal, obtain the 4th
Target square-wave signal.
Target square-wave signal includes the 3rd target square-wave signal and/or the 4th target square-wave signal.
For example, when control unit 111 only sends three digital audio and video signals to the 3rd codec U3, Signal Regulation list
The 3rd codec U3 in member 10 carries out digital-to-analogue conversion to the 3rd digital audio and video signals, obtains the 3rd simulated audio signal.The
Three modulator T3 are modulated according to preset reference signal to the 3rd simulated audio signal, obtain the 3rd target square-wave signal.By
The 4th digital audio and video signals are not sent in control unit 111 to the 4th codec U4 so that target square-wave signal only includes the
Three target square-wave signals.The first signal input part in earphone interface unit 32 receives the 3rd target square-wave signal, passes through first
Signal output part exports the 3rd target square-wave signal, and now earphone 130 plays monophonic audio.
For another example work as control unit 111 sends the 3rd digital audio and video signals to the 3rd codec U3, and also compiled to the 4th
When decoder U4 sends four digital audio and video signals, the 3rd codec U3 in signal conditioning unit 10 is to the 3rd DAB
Signal carries out digital-to-analogue conversion, obtains the 3rd simulated audio signal；4th codec U4 enters line number to the 4th digital audio and video signals
Mould is changed, and obtains the 4th simulated audio signal.3rd modulator T3 enters according to preset reference signal to the 3rd simulated audio signal
Row modulation, obtains the 3rd target square-wave signal；4th modulator T4 enters according to preset reference signal to the 4th simulated audio signal
Row modulation, obtains the 4th target square-wave signal.Because target square-wave signal includes the 3rd target square-wave signal and the 4th target side
Ripple signal, the first signal input part in earphone interface unit 32 is set to receive the 3rd target square-wave signal, it is defeated by the first signal
Go out the 3rd target square-wave signal of end output, secondary signal input receives the 4th target square-wave signal, defeated by secondary signal
Go out the 4th target square-wave signal of end output, the sound that now earphone 130 is sent is to include the 3rd target square-wave signal and the 4th
Target square-wave signal it is stereo.
Fig. 7 shows a kind of another concrete structure signal for audio output device that another embodiment of the present invention provides
Figure.As shown in fig. 7, the possibility that another is realized as the present embodiment, signal output unit 30 include：
Earpiece unit 33, including signal input part, signal input part are used to connect the 5th movable end in multiple movable ends,
If earpiece unit is the 5th movable end for goal activities end, target square-wave signal is played.
It should be noted that when goal activities end is five movable end, target square-wave signal is included from the 5th movable end
5th target square-wave signal of output, makes earpiece unit 33 when playing the 5th target square-wave signal, and mono effects are presented.
Fig. 8 shows a kind of another physical circuit figure of audio output device of another embodiment of the present invention offer.Such as Fig. 8
Shown, signal conditioning unit 10 includes the 5th codec U5 and the 5th modulator T5.
5th codec U5 input is connected with the 5th output end of control unit 111, the 5th codec U5's
Output end is connected with the 5th modulator T5 input, the 5th modulator T5 output end and the fixing end phase of switch element 20
Even.
5th codec U5, for carrying out digital-to-analogue conversion to digital audio and video signals, obtain the 5th simulated audio signal.
5th modulator T5, for being modulated according to preset reference signal to the 5th simulated audio signal, obtain target
Square-wave signal.
For example, when control unit 111 only sends five digital audio and video signals to the 5th codec U5, Signal Regulation list
The 5th codec U5 in member 10 carries out digital-to-analogue conversion to the 5th digital audio and video signals, obtains the 5th simulated audio signal.The
Five modulator T5 are modulated according to preset reference signal to the 5th simulated audio signal, are obtained the 5th target square-wave signal, are made
Obtain target square-wave signal and only include the 5th target square-wave signal.Signal input part in earpiece unit 33 receives the 5th target square wave
Signal, and then the 5th target square-wave signal is exported, now earpiece unit 33 plays monophonic audio.
Fig. 9 shows a kind of another concrete structure schematic diagram of audio output device of another embodiment of the present invention offer.
As shown in figure 9, as a kind of mode realized of the present embodiment, multiple signal output units 30 in audio output device 100 can
With including：At least one of power amplifier unit 31, earphone interface unit 32 and earpiece unit 33.Due to power amplifier unit 31, ear
Machine interface unit 32 and earpiece unit 33 are each detailed in the above-described embodiments with the specific implementation of signal conditioning unit 10
Describe in detail bright, therefore here is omitted.
It should be noted that in actual applications, when multiple signal output units 30 include power amplifier unit 31, power amplifier list
Member 31 is arranged on the plate of second circuit 120, when multiple signal output units 30 include earphone interface unit 32 or receiver list
During member 33, earphone interface unit 32 or earpiece unit 33 can be arranged on the plate of the first circuit 110 or the plate of second circuit 120
On.
In such scheme, audio output device includes：Signal conditioning unit, switch element and multiple signal output lists
Member；Signal conditioning unit is connected with the control unit of terminal；Switch element is connected with control unit, and switch element includes fixing end
With multiple movable ends, fixing end is used to connect signal conditioning unit, multiple signal output units respectively with it is more in switch element
Individual movable end is connected, and the digital audio and video signals that signal conditioning unit is sent to control unit are modulated, and then obtain target side
Ripple signal, switch element determine that goal activities end is led according to the control signal that control unit is sent from multiple movable ends
It is logical, and then all or part of signal output unit output target square-wave signal into multiple signal output units, avoid
When audio frequency power amplifier, because the analog signal of transmission causes the phenomenon of signal interference to other functional units of terminal inner.
Target square-wave signal is converted to by the first wireless signal by radio-cell, and first wireless signal is sent to
Wireless device, while the second wireless singal of wireless device can also be received, and control unit is sent it to, realize terminal and nothing
When line equipment carries out speech enabled, it can also avoid causing the phenomenon of signal interference to other functional units of terminal inner
Figure 10 shows a kind of structure of terminal provided in an embodiment of the present invention, and as shown in Figure 10, terminal 200 includes above-mentioned
Audio output device 100 in embodiment is connected.
It is understood that because the terminal 200 of the present embodiment offer content related to the present invention exists with implementation
Had been described in the above, therefore here is omitted.
In such scheme, audio output device includes：Signal conditioning unit, switch element and multiple signal output lists
Member；Signal conditioning unit is connected with the control unit of terminal；Switch element is connected with control unit, and switch element includes fixing end
With multiple movable ends, fixing end is used to connect signal conditioning unit, multiple signal output units respectively with it is more in switch element
Individual movable end is connected, and the digital audio and video signals that signal conditioning unit is sent to control unit are modulated, and then obtain target side
Ripple signal, switch element determine that goal activities end is led according to the control signal that control unit is sent from multiple movable ends
It is logical, and then all or part of signal output unit output target square-wave signal into multiple signal output units, avoid
When audio frequency power amplifier, because the analog signal of transmission causes the phenomenon of signal interference to other functional units of terminal inner.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Member and algorithm steps, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, the composition and step of each example are generally described according to function in the above description.This
A little functions are performed with hardware or software mode actually, application-specific and design constraint bar depending on technical scheme
Part.Professional and technical personnel can realize described function using distinct methods to each specific application program, still
This realization is it is not considered that beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, the end of foregoing description
End and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed terminal and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of unit, is only
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.In addition, it is shown or discussed it is mutual it
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, device or unit
Connect or electricity, mechanical or other forms connections.
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Unit in terminal of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
The unit illustrated as separating component can be or may not be physically separate, be shown as unit
Part can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple networks
On unit.Some or all of unit therein can be selected to realize the mesh of scheme of the embodiment of the present invention according to the actual needs
's.
More than, it is only embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with
Those skilled in the art the invention discloses technical scope in, various equivalent modifications or substitutions can be readily occurred in,
These modifications or substitutions should be all included within the scope of the present invention.Therefore, protection scope of the present invention should be wanted with right
The protection domain asked is defined.
Claims (10)
1. a kind of audio output device, for located at terminal, it is characterised in that the audio output device includes：
Signal conditioning unit, for being connected with the control unit of the terminal, the signal conditioning unit is used for the control
The digital audio and video signals that unit is sent are modulated, and obtain target square-wave signal；
Switch element, for being connected with described control unit, it includes fixing end and multiple movable ends, and the fixing end is used to connect
Connect the signal conditioning unit, the switch element is used for according to the control signal that described control unit is sent from the multiple work
Determine that goal activities end is turned on, and exports the target square-wave signal in moved end；
Multiple signal output units, it is connected respectively with the multiple movable end in the switch element, the signal output list
Member is used to receive and propagate the target square-wave signal.
2. audio output device according to claim 1, it is characterised in that the signal output unit includes：
Power amplifier unit, it is connected with the first movable end in the multiple movable end and the second movable end, the power amplifier unit is used for
If the goal activities end is first movable end and second movable end, the target square-wave signal is put
Greatly, and play amplification after the target square-wave signal.
3. audio output device according to claim 1, it is characterised in that the signal output unit includes：
Earphone interface unit, including the first signal input part, secondary signal input, the first signal output part and secondary signal
Output end, first signal input part are respectively used to be connected in the multiple movable end with the secondary signal input
Three movable ends and the 4th movable end, first signal output part are used to be connected earphone with the secondary signal output end, institute
If it is the 3rd movable end and the 4th movable end to state earphone interface unit for the goal activities end, to the ear
Machine sends the target square-wave signal and played out.
4. audio output device according to claim 1, it is characterised in that the signal output unit includes：
Earpiece unit, including signal input part, the 5th activity that the signal input part is used to connect in the multiple movable end
End, if the earpiece unit is the 5th movable end for the goal activities end, plays the target square-wave signal.
5. audio output device according to claim 2, it is characterised in that the signal conditioning unit includes first and compiles solution
Code device, the second codec, the first modulator and the second modulator；
The input of first codec is connected with the first output end of described control unit, second codec
Input is connected with the second output end of described control unit, the output end of first codec and first modulator
Input be connected, the output end of second codec is connected with the input of second modulator, it is described first adjust
The output end of device processed is used to be connected the switch element with the output end of second modulator；
First codec, the first digital audio and video signals for being sent to described control unit carry out digital-to-analogue conversion, obtained
To the first simulated audio signal；
First modulator, for being modulated according to preset reference signal to first simulated audio signal, obtain
One target square-wave signal；
Second codec, the second digital audio and video signals for being sent to described control unit carry out digital-to-analogue conversion, obtained
To the second simulated audio signal；
Second modulator, for being modulated according to preset reference signal to second simulated audio signal, obtain
Two target square-wave signals；
The target square-wave signal includes the first object square-wave signal and/or the second target square-wave signal.
6. audio output device according to claim 3, it is characterised in that the signal conditioning unit includes the 3rd and compiles solution
Code device, the 4th codec, the 3rd modulator and the 4th modulator；
The input of 3rd codec is connected with the 3rd output end of described control unit, the 4th codec
Input is connected with the 4th output end of described control unit, output end and the 3rd modulator of the 3rd codec
Input be connected, the output end of the 4th codec is connected with the input of the 4th modulator, it is described 3rd adjust
The output end of device processed is used to be connected the switch element with the output end of the 4th modulator；
3rd codec, the 3rd digital audio and video signals for being sent to described control unit carry out digital-to-analogue conversion, obtained
To the 3rd simulated audio signal；
3rd modulator, for being modulated according to preset reference signal to the 3rd simulated audio signal, obtain
Three target square-wave signals；
4th codec, the 4th digital audio and video signals for being sent to described control unit carry out digital-to-analogue conversion, obtained
To the 4th simulated audio signal；
4th modulator, for being modulated according to preset reference signal to the 4th simulated audio signal, obtain
Four target square-wave signals；
The target square-wave signal includes the 3rd target square-wave signal and/or the 4th target square-wave signal.
7. audio output device according to claim 4, it is characterised in that the signal conditioning unit includes the 5th and compiles solution
Code device and the 5th modulator；
The input of 5th codec is connected with the 5th output end of described control unit, the 5th codec
Output end is connected with the input of the 5th modulator, the output end of the 5th modulator and the fixation of the switch element
End is connected；
5th codec, for carrying out digital-to-analogue conversion to the digital audio and video signals, obtain the 5th simulated audio signal；
5th modulator, for being modulated according to preset reference signal to the 5th simulated audio signal, obtain institute
State target square-wave signal.
8. audio output device according to claim 5, it is characterised in that the power amplifier unit include the first amplifier,
Second amplifier, the first loudspeaker and the second loudspeaker；
The signal input part of first amplifier is connected with first movable end, the signal output part of first amplifier
It is connected with first loudspeaker, the signal input part of second amplifier is connected with second movable end, and described second
The signal output part of amplifier is connected with second loudspeaker；
First amplifier is amplified to the first object square-wave signal, and by the first object square wave after amplification
Signal is sent to first loudspeaker and played out；
Second amplifier is amplified to the second target square-wave signal, and by the second target square wave after amplification
Signal is sent to second loudspeaker and played out.
9. audio output device according to claim 1, it is characterised in that the signal output unit includes：
Power amplifier unit, on the second circuit board of the terminal, itself and the first movable end in the multiple movable end and
Two movable ends are connected, if it is first movable end and second activity that the power amplifier unit, which is used for the goal activities end,
End, then be amplified to the target square-wave signal, and plays the target square-wave signal after amplification；
Earphone interface unit, including the first signal input part, secondary signal input, the first signal output part and secondary signal
Output end, first signal input part are respectively used to be connected in the multiple movable end with the secondary signal input
Three movable ends and the 4th movable end, first signal output part are used to be connected earphone with the secondary signal output end, institute
If it is the 3rd movable end and the 4th movable end to state earphone interface unit for the goal activities end, sent out to the earphone
The target square-wave signal is sent to play out；
Earpiece unit, including signal input part, the 5th activity that the signal input part is used to connect in the multiple movable end
End, if the earpiece unit is the 5th movable end for the goal activities end, plays the target square-wave signal.
10. a kind of terminal, it is characterised in that the terminal includes the audio output device described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749417.1A CN107635063B (en) | 2017-08-28 | 2017-08-28 | Audio output device and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749417.1A CN107635063B (en) | 2017-08-28 | 2017-08-28 | Audio output device and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN107635063A true CN107635063A (en) | 2018-01-26 |
| CN107635063B CN107635063B (en) | 2020-01-03 |
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| CN201710749417.1A Active CN107635063B (en) | 2017-08-28 | 2017-08-28 | Audio output device and terminal |
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| CN201733428U (en) * | 2010-05-17 | 2011-02-02 | 青岛海信移动通信技术股份有限公司 | Audio output circuit and mobile terminal with the same |
| CN102625488A (en) * | 2012-04-19 | 2012-08-01 | 上海艾为电子技术有限公司 | Mobile terminal |
| US9071214B2 (en) * | 2009-06-11 | 2015-06-30 | Invensense, Inc. | Audio signal controller |
| CN105828249A (en) * | 2015-07-01 | 2016-08-03 | 维沃移动通信有限公司 | Electronic device, audio processing circuit thereof, and output method of audio signal |
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2017
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9071214B2 (en) * | 2009-06-11 | 2015-06-30 | Invensense, Inc. | Audio signal controller |
| CN201733428U (en) * | 2010-05-17 | 2011-02-02 | 青岛海信移动通信技术股份有限公司 | Audio output circuit and mobile terminal with the same |
| CN102625488A (en) * | 2012-04-19 | 2012-08-01 | 上海艾为电子技术有限公司 | Mobile terminal |
| CN105828249A (en) * | 2015-07-01 | 2016-08-03 | 维沃移动通信有限公司 | Electronic device, audio processing circuit thereof, and output method of audio signal |
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|---|---|
| CN107635063B (en) | 2020-01-03 |
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