CN106162441A - Acoustic controller and control method - Google Patents
Acoustic controller and control method Download PDFInfo
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- CN106162441A CN106162441A CN201610592528.1A CN201610592528A CN106162441A CN 106162441 A CN106162441 A CN 106162441A CN 201610592528 A CN201610592528 A CN 201610592528A CN 106162441 A CN106162441 A CN 106162441A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
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- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The present invention provides a kind of acoustic controller, including audio frequency access unit, it includes that, for detecting the detector unit whether audio frequency access unit has audio signal to input, described detector unit persistently detects audio signal；For judging whether the signal that described detector unit detects meets the dormancy condition judgment unit of sleep operation condition；For when dormancy condition judgment unit judges to meet dormancy condition, making acoustic controller enter the dormancy unit of resting state.Above-mentioned acoustic controller is when meeting dormancy condition, and acoustic controller, automatically into resting state, saves artificial operation, uses more convenient comfortable.The present invention also provides the control method of a kind of acoustic controller.
Description
Technical field
The present invention relates to electronics field, particularly relate to a kind of acoustic controller and control method.
Background technology
The audio amplifier that the electronic equipments itself such as TV, mobile phone, computer carry sees that news, TV play can also gather together, broadcasting film,
Music effect is extremely bad.Then part producer has reserved subwoofer interface, and provides independent subwoofer for choosing.Individually
Installing a subwoofer additional, acoustics of seeing a film is pretty good.But listen music still to have the frequency range missed, especially low frequency male voice.
In order to see a film, music all obtain preferable effect, everybody often adds to TV and joins active audio amplifier.
Finish watching film to whip remote closing, the pass of going over but audio amplifier is stood up always, use inconvenience.Even if select a be furnished with distant
The audio amplifier of control, many remote controllers in hand, are also a kind of burden.
Content of the invention
Based on this, it is necessary to provide and a kind of use more convenient acoustic controller and control method.
The present invention provides a kind of acoustic controller, including audio frequency access unit, it includes detector unit, is used for detecting audio frequency
Whether access unit has audio signal to input, and described detector unit persistently detects audio signal；Dormancy condition judgment unit, is used for
Judge whether the signal that described detector unit detects meets sleep operation condition；Dormancy unit, for when dormancy condition judgment list
When unit judges to meet dormancy condition, acoustic controller is made to enter resting state.
Wherein in an embodiment, described sleep operation condition sleep operation condition includes that audio signal stops continuing one
The fixed time.
Wherein in an embodiment, also including power subsystem, described power subsystem includes power-saving module, described economize on electricity mould
Block makes acoustic controller be in energy-saving mode for control, when described acoustic controller enters resting state, and described power-saving module
The power supply making acoustic controller is closed.
Wherein in an embodiment, described audio frequency access unit includes bluetooth unit and line-in unit, described
Line-in unit is provided with seizes module, and under meeting preemptive condition, line-in voice-grade channel seizes passage, described bluetooth list
Unit is provided with and seizes module, and under meeting preemptive condition, Bluetooth audio frequency passage seizes passage.
Wherein in an embodiment, also including audio switching unit, described audio switching unit is in satisfied switching
Under the conditions of audio frequency switch between line-in pattern and bluetooth mode.
Wherein in an embodiment, also include wake-up condition judging unit, for being in dormancy shape when acoustic controller
During state, it may be judged whether meet wake-up condition；Wakeup unit, wakes up up described in meeting when the judgement of described wake-up condition judging unit
During condition, acoustic controller is made to enter wake-up states.
Wherein in an embodiment, described wake-up condition includes that detector unit detects audio frequency source of sound.
Also providing the control method of a kind of acoustic controller, it includes when wake-up states, it is judged that whether acoustic controller
Meet sleep operation condition；If meeting sleep operation condition, then enter resting state.
Wherein in an embodiment, when being additionally included in resting state, it is judged that whether acoustic controller meets wake operation
Condition；If meeting wake operation condition, then enter wake-up states.
Above-mentioned acoustic controller is when meeting dormancy condition, and can start dormancy unit makes acoustic controller enter dormancy
State, saves artificial operation, uses more convenient comfortable.
Above-mentioned control method is when meeting dormancy condition, and acoustic controller, automatically into resting state, saves artificial
Operation, uses more convenient comfortable.
Brief description
Fig. 1 is the structural representation of the acoustic controller described in embodiment；
Fig. 2 is to be one of acoustic controller described in embodiment control flow chart in automatic mode；
Fig. 3 is to be the two of acoustic controller described in embodiment control flow chart in automatic mode.
Detailed description of the invention
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing
Give the better embodiment of the present invention.But, the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, provide the purpose of these embodiments to be to make to understand the disclosure more
Add thorough comprehensive.
Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention
The implication that technical staff is generally understood that is identical.The term being used in the description of the invention herein is intended merely to describe tool
The purpose of the embodiment of body, it is not intended that in the restriction present invention.Term as used herein " and/or " include one or more
Arbitrary and all of combination of related Listed Items.
Referring to Fig. 1, acoustic controller includes audio frequency access unit, detector unit, dormancy condition judgment unit, dormancy list
Unit.Acoustic controller can be with electronic equipments such as external computer, mobile phone or TVs.
Audio frequency access unit includes bluetooth unit and line-in unit.Extraneous audio input device can pass through line-
In unit or bluetooth unit access acoustic controller.Line-in unit is provided with seizes module, under meeting preemptive condition,
Line-in voice-grade channel seizes passage.Bluetooth unit is provided with seizes module, and under meeting preemptive condition, Bluetooth audio frequency passage is robbed
Account for passage.
Whether detector unit detection audio frequency access unit has audio signal to input.Detector unit persistently detects audio frequency and accesses single
Unit audio frequency input state.
Dormancy condition judgment unit is used for judging whether acoustic controller meets sleep operation condition.Sleep operation condition bag
Including audio signal and stopping the duration, the audio signal stopping duration may be defined as dormancy and sets the time.Dormancy sets the time
Can be that system arranges such as 1 minute or two minutes.Dormancy unit, for judging to meet dormancy bar when dormancy condition judgment unit
During part, acoustic controller is made to enter resting state.
Acoustic controller also includes wake-up condition judging unit.Wake-up condition judging unit is for being in when acoustic controller
During resting state, it may be judged whether meet wake-up condition.When meeting wake operation condition, wakeup unit makes acoustic controller enter
Wake-up states.
Acoustic controller also includes power subsystem.Power subsystem includes power-saving module and continued power module.Power-saving module
Control makes acoustic controller be in energy-saving mode, and the control of continued power module makes acoustic controller be in continued power pattern.?
Under energy-saving mode, when acoustic controller enters resting state, power-saving module makes the power supply of acoustic controller be closed.
Acoustic controller also includes wake-up condition judging unit and wakeup unit.Wake-up condition judging unit, for working as
Acoustic controller in a dormant state when, it may be judged whether meet wake-up condition.Wake-up condition includes that detector unit detects audio frequency
Source of sound.Wakeup unit, for when described wake-up condition judging unit judges to meet described wake-up condition, making acoustic controller enter
Enter wake-up states.
Acoustic controller also includes audio switching unit, and audio switching unit is used for audio frequency in line-in pattern and bluetooth
Switch between pattern.
The audio mode of acoustic controller includes automatic mode, line-in pattern and bluetooth mode.At acoustic controller
Outside can set gradually economize on electricity indicator lamp, continued power indicator lamp, automatic pilot lamp, line-in indicator lamp, bluetooth refer to
Show lamp.The corresponding power-saving module of economize on electricity indicator lamp, the corresponding continued power module of continued power indicator lamp, automatic pilot lamp is corresponding automatically
Pattern, the corresponding line-in pattern of line-in indicator lamp, the corresponding bluetooth mode of bluetooth indicator lamp.
Indicator lamp position needs to do transparent atomization or soft light effect in case surface, it is impossible to exposes LED lamp tube and directly penetrates
Go out (night is more dazzling, affects perception).
The function of " switch to or switch out " of all buttons for once property, must not design " switching out switching to close ", point
When hitting Atuo button, system needs to judge whether present video pattern is automatic, if it is not, then switch audio mode at once
To automatic mode, if being automatic, then do not perform any operation.
When start default audio pattern is automatic mode.System opens Bluetooth chip, closes bluetooth autoconnect function, if
Putting line-in signal condition is nothing.
Referring to Fig. 2, detector unit persistently detects audio signal.If detecting, line-in audio signal stops, dormancy bar
Part judging unit judges whether to reach sleep operation condition, in the present embodiment the last line-in audio frequency for detecting
Signal stops reaching for the first setting time so far.When reaching sleep operation condition, dormancy unit makes acoustic controller enter dormancy shape
State.If dormancy condition judgment unit judges to be unsatisfactory for sleep operation condition, then continue to judge that last line-in signal stops
Only whether reached for the second setting time so far, if it is, it is nothing that system arranges line-in signal condition；If it is not, then detection
Unit persistently detects line-in audio signal.Second setting time numerical value is less than the first setting time numerical value, when setting such as first
Between be 60S, second sets the time as 30S.In the present embodiment, first setting the time as 60S, second sets the time enters as 30S
Row explanation.
Referring to Fig. 3, detector unit persistently detects audio signal.If detecting, Bluetooth audio signals stops, dormancy condition
Judging unit judges whether to reach sleep operation condition, in the present embodiment the last line-in audio frequency letter for detecting
Number stopping reached for the first setting time so far.When reaching for the first setting time, dormancy unit makes acoustic controller enter resting state.
If dormancy condition judgment unit judges to be unsatisfactory for sleep operation condition, then continue to judge that last line-in signal stops
So far whether reached for the second setting time, if it is, determine whether line-in audio signal, have then by Audio conversion list
Unit switches to line-in voice-grade channel.If it is not, then detector unit persistently detects Bluetooth audio signals.Second setting time
Numerical value is less than the first setting time numerical value, and as first sets the time as 60S, second sets the time as 30S.
It is automatic mode that acoustic controller first powers on default audio pattern, and default power source pattern is energy-saving mode.
When the lasting 30S of line-In audio signal detection does not has signal, label L ine-In current signal state is needed to be nothing.
Line-In signal condition is a variable, is it is considered that whether Line-In currently has a signal, rather than in fact whether
Having signal, in the 30s after Line-In blackout, Line-In signal condition is " having ", and until 30s, this is become by we
Amount is set to "None".
The sufficient and necessary condition that line-In pattern seizes passage is, line-In audio signal is grown out of nothing.Simple inspection
Measure Line-In signal to be directly switch to Line-In and also to judge whether current Line-In current signal state is nothing,
It is, from the point of view of for Line-In, the moment grown out of nothing of a signal equipment at last accesses mark.
The sufficient and necessary condition that bluetooth mode seizes passage is, bluetooth connection establishment, it is, from the point of view of for bluetooth, letter
Number from the mark being disconnected to moment of connection establishment an equipment accessing at last.
The audio mode of acoustic controller is when line-in pattern.System closes Bluetooth chip.Detector unit persistently detects
Line-in signal.Dormancy condition judgment unit judges whether to meet sleep operation condition.When meeting sleep operation condition, stop
Dormancy unit makes acoustic controller enter resting state.Wake-up condition judging unit for when acoustic controller in a dormant state
When, it may be judged whether meet wake-up condition.Wake-up condition includes it being to have source of sound.Wakeup unit is for judging single when described wake-up condition
When unit judges to meet described wake-up condition, acoustic controller is made to enter wake-up states.
The audio mode of acoustic controller is when bluetooth mode.System unlatching Bluetooth chip is opened bluetooth simultaneously and is certainly dynamically connected
Function, closes line-in detection and preemption function.Detector unit persistently detects Bluetooth audio signals.Dormancy condition judgment unit
Judge whether to meet sleep operation condition.The present embodiment stops having reached 60S, bluetooth so far for last Bluetooth audio signals
Audio signal stops when meeting sleep operation condition, and dormancy unit makes acoustic controller enter resting state.In energy-saving mode
Under, power-saving module directly closes power supply.In the dormant state, wake-up condition judging unit judges whether to meet wake-up condition.Call out
Awake condition includes that bluetooth is set up and connects.If meeting wake-up condition, then wakeup unit makes acoustic controller enter wake-up states.
Also providing the control method of a kind of acoustic controller, it includes when wake-up states, it is judged that whether acoustic controller
Meet sleep operation condition；If meeting sleep operation condition, then enter resting state.Wherein in an embodiment, also include
When resting state, it is judged that whether acoustic controller meets wake operation condition；If meeting wake operation condition, then enter and wake up up
State.
Illustrate in automatic mode, line-in pattern, the duty of bluetooth mode with acoustic controller below.
Referring to table 1-1, being under the pattern economized on electricity at electric source modes, have line-In audio frequency source of sound, bluetooth does not sets up connection
When, when audio frequency exports with line-In audio frequency.When detector unit detects line-In no signal, dormancy condition judgment unit judges nothing
When signal continues 30S, the control of dormancy unit makes acoustic controller dormancy, and power supply is closed in power-saving module control.There is line-In
Audio frequency source of sound, when bluetooth does not sets up connection, when audio frequency exports with line-In audio frequency.When detector unit detection Bluetooth audio frequency is set up
Connect, meet Bluetooth audio frequency and seize the necessary and sufficient condition of passage, audio switching unit switching channel to export Bluetooth audio signals, this
When power supply status for power supply.
Having Line-In audio frequency source of sound, bluetooth also has audio frequency source of sound, when exporting with line-In, if line-In continue 30S without
Signal, meets Bluetooth audio frequency and seizes the necessary and sufficient condition of passage, and audio switching unit switching channel is to export Bluetooth audio signals, electric
Source state is continued power.Having line-In audio frequency source of sound, bluetooth also has audio frequency source of sound, and when exporting with bluetooth, detector unit detects
Stopping to Bluetooth audio signals, last 1 Bluetooth audio signals stops having reached 30s or bluetooth connects disconnection, then with line-In sound
Frequency output.
It is under the pattern economized on electricity at electric source modes, without line-In audio frequency source of sound, during without Bluetooth audio frequency source of sound, if detection is single
Unit's detection line-In signal condition audio signal, wakeup unit wakes up acoustic controller up directly with the output of line-In audio frequency, electricity
Source state is power supply；Connecting if detector unit detects that bluetooth is set up, it is defeated with Bluetooth audio frequency that wakeup unit wakes up acoustic controller up
Going out, power supply status is power supply.The source of sound of audio frequency without line-In, bluetooth is set up when connecting, with Bluetooth audio frequency output, if detector unit
Detect that Bluetooth audio signals stops, and dormancy condition judgment unit judge that last 1 Bluetooth audio signals stops having reached 30s,
Or bluetooth connects disconnection.Dormancy unit makes acoustic controller enter resting state.Power-saving module is directly by power-off.
Electric source modes be continued power pattern under, have Line-In audio frequency source of sound, when bluetooth does not sets up connection, with
Line-In audio signal exports, and detector unit detects that Line-In audio signal stops, and dormancy condition judgment unit judges
Line-In audio signal continues 30 no signals, and dormancy unit makes acoustic controller enter resting state, and power supply status is power supply.
Line-In audio signal is had to input, without Bluetooth audio signals, with the output of line-In audio signal, if Bluetooth audio frequency is set up even
Connect, meet Bluetooth audio frequency and seize the necessary and sufficient condition of passage, audio switching unit switching channel to export Bluetooth audio signals, power supply
State is powered.Having line-In audio frequency source of sound, bluetooth is set up when connecting, and when exporting with line-In audio signal, detector unit is examined
Measure line-In audio signal to stop, and dormancy condition judgment unit judges that line-In audio signal continues 30 no signals, sound
Frequently switch unit switches to Bluetooth audio frequency, and power supply status is power supply.There is line-In audio frequency source of sound, have Bluetooth audio signals, with indigo plant
During the output of tooth audio signal, detector unit detects that last 1 Bluetooth audio signals stops having reached 30s or bluetooth connects disconnection,
Audio switching unit switches to line-In audio frequency, and power supply status is power supply.The source of sound of audio frequency without line-In, bluetooth is also not connected with
When, detector unit detects line-In audio signal, then with the output of line-In audio frequency, power supply status is power supply.Without line-
In audio frequency source of sound, when bluetooth is also not connected with, detector unit detects that bluetooth is set up and connects, then with Bluetooth audio frequency output, power supply shape
State is power supply.The source of sound of audio frequency without line-In, Bluetooth audio frequency is set up when connecting, with Bluetooth audio frequency output.Detector unit detects indigo plant
Tooth audio signal stops, and dormancy condition judgment unit judges that last 1 Bluetooth audio signals stops having reached 30s or bluetooth connects
Disconnect, then dormancy unit makes acoustic controller enter resting state, and power supply status is power supply.
Table 1-1 automatic mode
Duty under line-in pattern for the acoustic controller.Under line-in pattern, bluetooth is closed.
Refer to table 1-2, under power supply is energy-saving mode, when having line-In source of sound, defeated with line-In audio signal
Going out, detector unit detects that line-In signal stops, and dormancy condition judgment unit judges that line-In no signal continues
30S, dormancy unit makes acoustic controller enter resting state, and power supply is closed in power-saving module control.During source of sound without line-In, if
Detector unit one detects line-In audio signal, and wakeup unit wakes up acoustic controller up and exports with line-In audio signal,
Power supply status is power supply.
Under the pattern that power supply is continued power, when having line-In source of sound, with the output of line-In audio signal.Power supply
State is power supply.
Table 1-2 Line-in pattern
Duty under bluetooth mode for the acoustic controller.Under bluetooth mode, line-in closes.
Referring to table 1-3, power supply in a power saving mode, set up and connect by bluetooth, and with Bluetooth audio frequency output, detector unit detects
Stopping to Bluetooth audio signals, dormancy condition judgment unit judges that last 1 Bluetooth audio signals stops having reached 30s, then dormancy
Unit makes acoustic controller enter resting state, and power supply status is for closing.When bluetooth does not sets up connection, if detector unit detection
To bluetooth connection establishment, wake-up condition judging unit judges to meet wake-up condition, and wakeup unit wakes up acoustic controller, power supply shape up
State is power supply.
Under the pattern of power supply continued power, when exporting with Bluetooth audio frequency, detector unit detection has lasting Bluetooth audio frequency
During signal, continue with Bluetooth audio frequency output.
Table 1-3 bluetooth mode
Application below in conjunction with acoustic controller is described further.
1st, acoustic controller is in economize on electricity+auto state, and during Xiao Wang goes back home, wife (is connected by CD player
Line in) listen music, Xiao Wang says the first good song of discovery one, and with mobile phone connecting sound equipment controller, acoustic controller finds source of sound at once
Newly entering, being switched to bluetooth, Xiao Wang can share the new song in mobile phone at once with wife.
Wife is really good after hearing out, it is simply that tonequality is too poor, allows Xiao Wang downstairs buy CD dish.After Xiao Wang goes downstairs,
Bluetooth disconnects, and controller detects that audio frequency disappears, and is switched to CD player at once.If now CD does not also terminate, then wife Xiao Wang can
To continue to appreciate music.If be over, then controller detects that source of sound all disappears, then automatically disconnect socket power, sound
Case is closed, energy-saving safe environmental protection again.
Wife Xiao Wang has pressed again the play button of CD player, and controller is detected immediately upon audio frequency and newly enters, and opens socket power,
Music continues.
2nd, controller is in economize on electricity+line-In state, and Xiao Wang goes home to play newfound music, wife with mobile phone every time
Son feels very tired, and tonequality is bad again, and controller directly arranges line-In state, and it is special that acoustic controller becomes audio amplifier
Energy-conservation emperorship.
Above-mentioned acoustic controller is when meeting dormancy condition, and acoustic controller, automatically into resting state, saves people
The operation of work, uses more convenient comfortable.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but simultaneously
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. an acoustic controller, including audio frequency access unit, it is characterised in that include detector unit, be used for detecting audio frequency and connect
Entering whether unit has audio signal to input, described detector unit persistently detects audio signal；Dormancy condition judgment unit, is used for sentencing
Whether the signal of described detector unit of breaking detection meets sleep operation condition；Dormancy unit, for when dormancy condition judgment unit
When judging to meet dormancy condition, acoustic controller is made to enter resting state.
2. acoustic controller as claimed in claim 1, it is characterised in that described sleep operation condition sleep operation condition includes
Audio signal stops continuing the regular hour.
3. acoustic controller as claimed in claim 1, it is characterised in that also including power subsystem, described power subsystem includes
Power-saving module, described power-saving module makes acoustic controller be in energy-saving mode for control, and described acoustic controller enters dormancy
During state, described power-saving module makes the power supply of acoustic controller be closed.
4. acoustic controller as claimed in claim 1, it is characterised in that described audio frequency access unit include bluetooth unit and
Line-in unit, described line-in unit is provided with seizes module, and under meeting preemptive condition, line-in voice-grade channel is seized
Passage, described bluetooth unit is provided with seizes module, and under meeting preemptive condition, Bluetooth audio frequency passage seizes passage.
5. acoustic controller as claimed in claim 4, it is characterised in that also include audio switching unit, described Audio conversion
Unit is for switching over meeting switching condition subaudio frequency between line-in pattern and bluetooth mode.
6. acoustic controller as claimed in claim 1, it is characterised in that also include wake-up condition judging unit, for working as sound
Ring controller in a dormant state when, it may be judged whether meet wake-up condition；
Wakeup unit, for when described wake-up condition judging unit judges to meet described wake-up condition, making acoustic controller enter
Enter wake-up states.
7. acoustic controller as claimed in claim 1, it is characterised in that described wake-up condition includes that detector unit detects sound
Frequently source of sound.
8. the control method of an acoustic controller, it is characterised in that when wake-up states, it is judged that whether acoustic controller meets
Sleep operation condition；If meeting sleep operation condition, then enter resting state.
9. the control method of acoustic controller as claimed in claim 8, it is characterised in that when being additionally included in resting state, sentence
Whether disconnected acoustic controller meets wake operation condition；If meeting wake operation condition, then enter wake-up states.
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| CN201610592528.1A CN106162441A (en) | 2016-07-26 | 2016-07-26 | Acoustic controller and control method |
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| CN201610592528.1A CN106162441A (en) | 2016-07-26 | 2016-07-26 | Acoustic controller and control method |
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| CN107948860A (en) * | 2017-12-25 | 2018-04-20 | 广州市尊浪电器有限公司 | A kind of audio controlling method and device |
| CN108156572A (en) * | 2017-12-25 | 2018-06-12 | 广州市尊浪电器有限公司 | A kind of audio controlling method and device |
| CN109379677A (en) * | 2018-12-14 | 2019-02-22 | 赣州得辉达科技有限公司 | A kind of control method, device and the readable storage medium storing program for executing of speaker low-power consumption work |
| CN110087165A (en) * | 2018-01-25 | 2019-08-02 | 汤如伊 | A kind of intelligent sound box management method and device based on user behavior analysis |
| CN110574100A (en) * | 2017-03-07 | 2019-12-13 | 雅马哈株式会社 | Electronic musical instrument |
| CN110879695A (en) * | 2019-11-22 | 2020-03-13 | 北京声智科技有限公司 | Audio playing control method, device and storage medium |
| CN111107532A (en) * | 2019-12-23 | 2020-05-05 | 联想(北京)有限公司 | Information processing method and device and electronic equipment |
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Application publication date: 20161123 |
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