CN108897521A - A kind of electronic equipment and control method - Google Patents
A kind of electronic equipment and control method Download PDFInfo
- Publication number
- CN108897521A CN108897521A CN201810725063.1A CN201810725063A CN108897521A CN 108897521 A CN108897521 A CN 108897521A CN 201810725063 A CN201810725063 A CN 201810725063A CN 108897521 A CN108897521 A CN 108897521A
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- audio signal
- earphone jack
- audio
- switching circuit
- codec
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Headphones And Earphones (AREA)
- Circuit For Audible Band Transducer (AREA)
- Stereophonic Arrangements (AREA)
Abstract
The invention discloses a kind of electronic equipment and control methods.Including earphone jack, switching circuit module, audio codec and processor module；For being connected to each other with headset plug, the earphone jack is used for by transmitting audio signal between the switching circuit module and the audio codec earphone jack；The switching circuit module is used to control opening or closing for audio signal transmission between the earphone jack and the audio codec；The audio codec is for transmitting audio signal between the processor module.Using electronic equipment and control method of the invention, it can be after earphone jack be docked completely with headset plug, just the transmission of audio signal between the earphone jack and the audio codec is opened in control, so as to avoid headset plug be inserted into earphone jack during, as unmatched junction portion touching and caused by noise noise.
Description
Technical field
The present invention relates to a kind of control field more particularly to a kind of electronic equipment and control method.
Background technique
Currently, earphone jack is as most common peripheral hardware in the electronic equipments such as laptop, tablet computer, mobile phone
Interface is widely used.But since the structure of earphone jack limits, when the headset plug of ear speaker device is inserted into earphone jack
When, the L channel and right channel of usual headset plug front end can first touch connecing as most outer ring in the earphone jack
Mouthful, earphone jack most outer ring in Fourth Ring is microphone interface, and tricyclic earphone jack most outer ring is GND ground interface.Therefore, no matter institute
Which interface that L channel and right channel first touch most outer ring in the earphone jack is stated, it all can be because of unmatched signal
It is transmitted to audio codec and penetrates HDA bus transfer again to CPU to feed back unpleasant noise noise out.This noise
Noise can not only cause the influence in listening experience to user, also can cause to be lost to the sound quality of ear speaker device over time.
For the problems of in the prior art, a kind of electronic equipment is provided and control method is of great significance.
Summary of the invention
To solve the above problems, the embodiment of the present invention provides a kind of electronic equipment and control method.
To achieve the above object, a kind of electronic equipment of the embodiment of the present invention, including earphone jack, switching circuit module,
Audio codec and processor module；For the earphone jack for being connected to each other with headset plug, the earphone jack passes through institute
It states and transmits audio signal between switching circuit module and the audio codec；The switching circuit module is described for controlling
The audio signal transmission opens or closes between earphone jack and the audio codec, when the earphone jack and institute
When stating headset plug and docking completely, the switching circuit module allows to pass between the earphone jack and the audio codec
Transfer audio signal；When the earphone jack is not docked completely with the headset plug, the switching circuit module is forbidden described
Audio signal is transmitted between earphone jack and the audio codec；The audio codec is used for and the processor die
The audio signal is transmitted between block；
Further, the audio signal includes the first audio signal；The earphone jack is specifically used for obtaining described the
One audio signal and by the switching circuit module by first audio signal transmission to the audio codec；It is described
Audio codec is specifically used for receiving first audio signal, and by first audio signal transmission to the processor
Module；
Further, the audio signal includes the second audio signal；The processor module is for exporting described second
Audio signal and by second audio signal transmission to the audio codec；The audio codec is specifically used for connecing
Second audio signal is received, and second audio signal is inserted by the switching circuit module transfer to the earphone
Hole；
It further, further include judgment module, the judgment module is connected with the switching circuit module, the judgement
Module is finished for judging whether the earphone jack docks completely with the headset plug；
It further, further include external switch, the external switch is connected with the switching circuit module, described external
Switch controls the earphone jack and the audio coding decoding for controlling opening or closing for the switching circuit module
Audio signal transmission opens or closes between device；
The present invention also provides a kind of control method, the method is used in electronic equipment, the method includes：Judge earphone
Whether jack docks completely with headset plug；If so, allowing to transmit audio between the earphone jack and audio codec
Signal；If it is not, then forbidding transmitting audio signal between the earphone jack and audio codec；
Further, the audio signal includes the first audio signal, and the method is specially：Whether judge earphone jack
It is docked completely with headset plug；If so, first audio signal transmission for allowing the earphone jack will acquire is to described
Audio codec；If it is not, then forbidding the earphone jack by first audio signal transmission to the audio codec；
Further, the audio signal includes the second audio signal, and the method is specially：Whether judge earphone jack
It is docked completely with headset plug；If so, second audio signal transmission for allowing the audio codec will acquire is extremely
The earphone jack；If it is not, then forbidding the audio decoder by second audio signal transmission to the earphone jack；
The method is specially：Judge whether earphone jack docks completely with headset plug；If so, external switch transmits
Opening control signal, to allow to transmit audio signal between the earphone jack and audio codec；If it is not, then described outer
Switch transmission closing control signal is set, to forbid transmitting audio signal between the earphone jack and audio codec；
A kind of electronic equipment and control method provided by the embodiment of the present invention, can be complete with headset plug in earphone jack
After full docking, just the transmission of audio signal between the earphone jack and the audio codec is opened in control, to avoid
During headset plug is inserted into earphone jack, as the touching of unmatched junction portion caused by noise noise.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electronic equipment described in the embodiment of the present invention；
Fig. 2 is the first pass schematic diagram of the method for the embodiment of the present invention,
Fig. 3 is the second procedure schematic diagram of the method for the embodiment of the present invention.
Specific embodiment
In the following, structure and working principle to the embodiment of the present invention etc. are further described in conjunction with attached drawing.
As shown in FIG. 1, FIG. 1 is the structural schematic diagrams of electronic equipment described in the embodiment of the present invention.The electronic equipment includes
Earphone jack 1, switching circuit module 2, audio codec 3 and processor module 4；The earphone jack 1 is used to insert with earphone
Head is connected to each other, and the earphone jack 1 is used for by transmitting sound between the switching circuit module 2 and the audio codec 3
Frequency signal；The switching circuit module 2 is for controlling audio signal between the earphone jack 1 and the audio codec 3
Transmission opens or closes；When the earphone jack 1 is docked completely with the headset plug, the switching circuit module 2 permits
Perhaps audio signal is transmitted between the described earphone jack 1 and the audio codec 3；When the earphone jack 1 and the earphone
When plug does not dock completely, the switching circuit module 2 forbids passing between the earphone jack 1 and the audio codec 3
Transfer audio signal；The audio codec 3 is for transmitting audio signal between the processor module 4.The earphone is inserted
Hole 1 is electrically connected with 2 phase of switching circuit module, and the switching circuit module 2 electrically connects with 3 phase of audio codec
It connects, the audio codec 3 is electrically connected with 4 phase of processor module, it is preferable that the audio codec 3 passes through
HDA bus is electrically connected with 4 phase of processor module.In the preferred embodiment of the invention, the electronic equipment is notes
This computer, tablet computer, mobile phone, desktop computer etc. are provided with the electronic equipment of earphone jack；The earphone jack can be three
Ring earphone jack or Fourth Ring earphone jack；The audio codec is pure audio decoder, and the audio codec is used for
The audio signal of reading is converted into analog audio signal output, is reset for power amplification；The processor module be CPU or
PCH。
In the preferred embodiment of the invention, the earphone jack be Fourth Ring earphone jack, i.e. combojack, described four
Ring earphone jack is added to the terminals of microphone sound pick-up on the basis of tricyclic earphone jack, therefore Fourth Ring earphone jack is
The Microphone of standard and earphone interface are combined into a jack, therefore for the Fourth Ring earphone jack, it is described
Audio signal includes two kinds of the first audio signal and the second audio signal, and first audio signal is audio input signal, institute
Stating the second audio signal is sound output signal；In the case where the audio signal is the first audio signal：The earphone is inserted
Hole is specifically used for first audio signal transmission to the audio codec through the switching circuit module；The sound
Frequency codec is specifically used for receiving first audio signal, and by first audio signal transmission to the processor die
Block.
In the case where the audio signal is the second audio signal, the electronic equipment passes through the place as output end
Device module is managed by second audio signal transmission to the earphone jack, therefore, the processor module is specifically used for institute
The second audio signal transmission is stated to the audio codec；The audio codec is specifically used for receiving second audio
Signal, and second audio signal is passed through into the switching circuit module transfer to the earphone jack；
The electronic equipment further includes judgment module 23, and the judgment module 23 is connected with the switching circuit module 2,
The judgment module 23 is for judging whether the earphone jack 1 docks completely with the headset plug.Currently preferred
In embodiment, the earphone jack is Fourth Ring earphone jack, and the headset plug for matching the Fourth Ring earphone jack is four-part form
Headset plug, normally, the four-section type headset plug is by L channel, right channel, GND ground connection and four part groups of microphone
At the front end of the four-section type headset plug is arranged in the L channel, is successively right channel, GND ground connection and Mike later
Wind；When the HP-L connector in the earphone jack is connected to each other with the L channel, HP-JD connector is connected to each other with the right channel
When, that is, illustrate that the Fourth Ring earphone jack has been fully achieved with the four-section type headset plug and docks.Therefore, excellent in the present invention
In the embodiment of choosing, the judgment module is connected with the HP-L connector, HP-JD connector, and the judgment module is for monitoring
And judge the signal docking of the HP-L connector and the HP-JD connector, when the HP-L connector and the left channel signals pair
It connects and when the HP-JD connector is docked with the right-channel signals, then the judgment module has judged the Fourth Ring earphone jack
Through being docked completely with the four-section type headset plug, at this point, the signal docked completely is transferred to described open by the judgment module
Line module is closed, the switching circuit module controls the earphone jack according to the signal docked completely and the audio is compiled
The unlatching of audio signal transmission between decoder.
The electronic equipment further includes external switch 22, and the external switch 22 is electrical with 2 phase of switching circuit module
Connection, the external switch 22 control the earphone jack 1 and the audio coding decoding for controlling the switching circuit module 2
Audio signal transmission opens or closes between device 3.In the preferred embodiment of the invention, the external switch is arranged described
At the external margin of electronic equipment, the external switch is described in user is controlled by opening or closing the external switch
Switching circuit module controls opening or closing for audio signal transmission between the earphone jack and the audio codec.It is logical
Chang Di judges that the judgment module for judging whether the earphone jack docks completely with the headset plug, can pass through
Built-in judgment module passes through in the inside of the earphone jack and judges that the HP-L connector is docked with the left channel signals
And the mode docked with the right-channel signals of the HP-JD connector is completed, further, it is also possible to simpler, more intuitively
Mode, i.e. user directly judge the ear by the way that whether the observation headset plug has been fully inserted into the earphone jack
Whether machine transplanting of rice hole docks completely with the headset plug, and in this case, there is no need to carry out internal judgment with judgment module
, the external switch default is closed state, under the closed state of the external switch, the switching circuit module control
Audio signal transmission is closed between the earphone jack and the audio codec, judges institute when user directly passes through observation
It states after earphone jack docks with the headset plug completely, by opening the external switch, the external switch at this time
It is switched to open state, then the external switch controls the switching circuit module and the earphone jack and the audio are compiled solution
Audio signal transmission is opened between code device.In the preferred embodiment of the invention, the external switch can be button switch, push away
Remove the various switch forms such as pass.
As shown in Figures 2 and 3, Fig. 2 is the first pass schematic diagram of the method for the embodiment of the present invention, and Fig. 3 is the present invention
The second procedure schematic diagram of the method for the embodiment of the present invention, provided control method are used in electronic equipment, the electronics
Equipment includes earphone jack and audio decoder, the method includes：S1 judges whether earphone jack is completely right with headset plug
It connects；S21 is if so, allow to transmit audio signal between the earphone jack and audio codec；S22 is if it is not, then forbid institute
It states and transmits audio signal between earphone jack and audio codec；In the preferred embodiment of the invention, the S1 judges ear
During whether machine transplanting of rice hole docks completely with earphone jack head, specific method one is：User directly passes through observation and judges the earphone
Whether jack has docked with the headset plug completely, when the headset plug is three-section earphone plug, then observes institute
Whether the GND grounded part for stating three-section earphone plug has been fully inserted into the earphone jack, if the three-section earphone
The GND grounded part of plug has been fully inserted into the earphone jack, then illustrate the three-section earphone plug with institute
Headset plug is stated to dock completely；When the headset plug is four-section type headset plug, then the four-section type headset plug is observed
Microphone part whether be fully inserted into the earphone jack, if so, illustrating the four-section type headset plug
It is docked completely with the headset plug；Specific method two is：Judgment module is set inside the earphone jack, by judging
State that HP-L connector is docked with the left channel signals and the HP-JD connector and the right-channel signals judge the ear to fetching
Whether docked completely with the headset plug in machine transplanting of rice hole.
In a preferred embodiment of the invention, the audio signal includes the first audio signal, and the method is specific
For：S1 judges whether earphone jack docks completely with headset plug；S21 is if so, allow the earphone jack by the first audio
Signal is transmitted to the audio codec；S22 is if it is not, then forbid the earphone jack by the first audio signal transmission to described
Audio codec；
In another preferred embodiment of the invention, the audio signal includes the second audio signal, and S1 judges earphone
Whether jack docks completely with headset plug；S31 is if so, allow the audio codec to pass second audio signal
Transport to the earphone jack；S32 is if it is not, then forbid the audio decoder by second audio signal transmission to the earphone
Jack；
The electronic equipment further includes judgment module, and the method is specially：The judgment module judges that earphone jack is
It is no to be docked completely with headset plug；It is solved if so, the earphone jack is allowed to compile the first audio signal transmission to the audio
Code device；If it is not, then forbidding the earphone jack by the first audio signal transmission to the audio codec；Of the invention preferred
Embodiment in, the judgment module is connected with the switching circuit module, and the judgment module is for judging the earphone
Whether jack docks completely with the headset plug.
Further, in control method provided by the present invention if so, allowing the earphone jack by the first audio
Signal is transmitted to after the audio codec, further includes, and it is complete with headset plug to judge whether the earphone jack is cancelled
Docking；If so, forbidding transmitting audio signal between the earphone jack and audio codec.
In the embodiment of the present invention one, the electronic equipment is laptop, and the laptop includes earphone
Jack, switching circuit module, audio codec, judgment module and processor module；The earphone jack is inserted for Fourth Ring earphone
Hole, the Fourth Ring earphone jack with four-section type headset plug for being connected to each other, the Fourth Ring earphone jack and the switching circuit
Module is mutually electrically connected, and the processor module is CPU, and the switching circuit module mutually electrically connects with the audio codec
Connect, the audio codec is electrically connected with the CPU phase, the switching circuit module for control the earphone jack with
Audio signal transmission opens or closes between the audio codec；The audio codec is used for and the processor
Audio signal is transmitted between module；The inside of the Fourth Ring earphone jack is arranged in the judgment module, with the switching circuit
Module is mutually electrically connected；
In the initial state, the switching circuit module control the Fourth Ring earphone jack and the audio codec it
Between audio signal transmission be in close state, when earphone is passed through four-section type headset plug and the Fourth Ring earphone jack by user
When being connected to each other, the judgment module is docked and the HP-JD connector by judging the HP-L connector with the left channel signals
Judge whether the Fourth Ring earphone jack docks with the four-section type headset plug completely to fetching with the right-channel signals；If
It is that then the signal docked completely is transmitted to the switching circuit module, the switching circuit module control by the judgment module
Audio signal transmission is open state between the Fourth Ring earphone jack and the audio codec, then at this point, the Fourth Ring
Audio signal can be transmitted between earphone jack and the audio codec mutually.
The audio signal includes the first audio signal and the second audio signal, and first audio signal is voice input
Signal, second audio signal are sound output signal；When the microphone that user wants to pass through on the ear speaker device will
When sound-content is transmitted to the electronic equipment, then the earphone exports the first audio signal, and the earphone is by first sound
Frequency signal is transmitted to the Fourth Ring earphone jack by the four-section type headset plug, and the Fourth Ring earphone jack is by described first
Audio signal transmission is to the audio codec, and the audio codec is again by first audio signal transmission to CPU；
When the electronic equipment is needed the voice signal in the electronic equipment, song, audio frequency etc. are transmitted to the earphone and set
When standby upper, then second audio signal transmission to the audio codec, the audio codec again will by the CPU
Second audio signal transmission to the Fourth Ring earphone jack, the Fourth Ring earphone jack passes through second audio signal
The four-section type headset plug is transmitted on the ear speaker device.
More than, schematic description only of the invention, it will be recognized by those skilled in the art that without departing from work of the invention
On the basis of making principle, a variety of improvement can be made to the present invention, this is all belonged to the scope of protection of the present invention.
Claims (9)
1. a kind of electronic equipment, which is characterized in that including earphone jack, switching circuit module, audio codec and processor
Module；
For the earphone jack for being connected to each other with headset plug, the earphone jack passes through the switching circuit module and the sound
Audio signal is transmitted between frequency codec；
The switching circuit module is passed for controlling the audio signal between the earphone jack and the audio codec
Defeated opens or closes, and when the earphone jack is docked completely with the headset plug, the switching circuit module allows institute
It states and transmits audio signal between earphone jack and the audio codec；When the earphone jack and the headset plug be not complete
When full docking, the switching circuit module forbids transmitting audio signal between the earphone jack and the audio codec；
The audio codec between the processor module for transmitting the audio signal.
2. electronic equipment as described in claim 1, which is characterized in that the audio signal includes the first audio signal；
The earphone jack is specifically used for obtaining first audio signal and by the switching circuit module by described first
Audio signal transmission is to the audio codec；
The audio codec is specifically used for receiving first audio signal, and by first audio signal transmission to institute
State processor module.
3. electronic equipment as described in claim 1, which is characterized in that the audio signal includes the second audio signal；
The processor module is for exporting second audio signal and by second audio signal transmission to the audio
Codec；
The audio codec is specifically used for receiving second audio signal, and by second audio signal described in
Switching circuit module transfer is to the earphone jack.
4. electronic equipment as described in claim 1, which is characterized in that further include judgment module, the judgment module with it is described
Switching circuit module is connected, and the judgment module is for judging whether the earphone jack docks completely with the headset plug
It finishes.
5. electronic equipment as described in claim 1, which is characterized in that further include external switch, the external switch with it is described
Switching circuit module is connected, and the external switch is controlled for controlling opening or closing for the switching circuit module
Audio signal transmission opens or closes between the earphone jack and the audio codec.
6. a kind of control method, which is characterized in that the method is used in electronic equipment, the method includes：
Judge whether earphone jack docks completely with headset plug；
If so, allowing to transmit audio signal between the earphone jack and audio codec；
If it is not, then forbidding transmitting audio signal between the earphone jack and audio codec.
7. control method as claimed in claim 6, which is characterized in that the audio signal includes the first audio signal, described
Method is specially：
Judge whether earphone jack docks completely with headset plug；
If so, first audio signal transmission for allowing the earphone jack will acquire is to the audio codec；
If it is not, then forbidding the earphone jack by first audio signal transmission to the audio codec.
8. control method as claimed in claim 6, which is characterized in that the audio signal includes the second audio signal, described
Method is specially：
Judge whether earphone jack docks completely with headset plug；
If so, second audio signal transmission for allowing the audio codec will acquire is to the earphone jack；
If it is not, then forbidding the audio decoder by second audio signal transmission to the earphone jack.
9. control method as claimed in claim 6, which is characterized in that the method is specially：
Judge whether earphone jack docks completely with headset plug；
If so, external switch transmits opening control signal, to allow to pass between the earphone jack and audio codec
Transfer audio signal；
If it is not, then the external switch transmits closing control signal, thus forbid the earphone jack and audio codec it
Between transmit audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725063.1A CN108897521B (en) | 2018-07-04 | 2018-07-04 | Electronic equipment and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725063.1A CN108897521B (en) | 2018-07-04 | 2018-07-04 | Electronic equipment and control method |
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| Publication Number | Publication Date |
|---|---|
| CN108897521A true CN108897521A (en) | 2018-11-27 |
| CN108897521B CN108897521B (en) | 2022-03-04 |
Family
ID=64348319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725063.1A Active CN108897521B (en) | 2018-07-04 | 2018-07-04 | Electronic equipment and control method |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108897521B (en) | 2022-03-04 |
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