CN107484079B - Bluetooth sound box and method for improving music playing jam during charging - Google Patents
Bluetooth sound box and method for improving music playing jam during charging Download PDFInfo
- Publication number
- CN107484079B CN107484079B CN201710934386.7A CN201710934386A CN107484079B CN 107484079 B CN107484079 B CN 107484079B CN 201710934386 A CN201710934386 A CN 201710934386A CN 107484079 B CN107484079 B CN 107484079B
- Authority
- CN
- China
- Prior art keywords
- voltage
- reference voltage
- charging
- control circuit
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a Bluetooth sound box and a method thereof for improving music playing jam during charging. The input end of the analog-to-digital converter is connected with the charging input port of the Bluetooth sound box, and the analog-to-digital converter is used for sampling the voltage of the charging input port of the Bluetooth sound box and outputting the sampled sampling voltage to the control circuit; the control circuit is used for comparing the sampling voltage with a first reference voltage, if the sampling voltage is greater than the first reference voltage, the current normal state is maintained, and music is played normally while charging; if the sampling voltage is smaller than the first reference voltage, the control circuit controls the charging circuit to reduce the charging current provided by the charging circuit for the battery, and the battery enters a first power-saving state. Compared with the prior art, the invention can improve the phenomenon that the playing music is jammed during charging.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of Bluetooth sound boxes, in particular to a Bluetooth sound box and a method for improving music playing blockage during charging.
[ background of the invention ]
With the popularity of wireless electronic products, not only mobile phones, but also wireless speakers have become indispensable devices in many young people's homes, and among them, bluetooth speakers are very popular wireless speakers in recent years. Because bluetooth speaker's duration is limited, consequently, bluetooth speaker is when charging through the charging wire, still probably broadcast the music simultaneously. However, playing music often causes a pause phenomenon when the bluetooth speaker is charged, which undoubtedly reduces the user experience.
Therefore, it is desirable to provide a bluetooth speaker and a method thereof for improving the music playing card during charging.
[ summary of the invention ]
One objective of the present invention is to provide a bluetooth speaker, which can improve the phenomenon of music playing stuck during charging.
The second objective of the present invention is to provide a method for improving music playing pause during charging of a bluetooth speaker, which can improve the phenomenon of music playing pause during charging.
In order to solve the above problem, according to one aspect of the present invention, the present invention provides a bluetooth speaker, which includes an analog-to-digital converter, a control circuit, a charging circuit, an audio circuit, and a radio frequency circuit. The input end of the analog-to-digital converter is connected with the charging input port of the Bluetooth sound box, and the analog-to-digital converter is used for sampling the voltage of the charging input port of the Bluetooth sound box and outputting the sampled sampling voltage to the control circuit; the control circuit is used for comparing the sampling voltage with a first reference voltage, if the sampling voltage is greater than the first reference voltage, the current normal state is maintained, and music is played normally while charging; if the sampling voltage is smaller than the first reference voltage, the control circuit controls the charging circuit to reduce the charging current provided by the charging circuit for the battery, and the battery enters a first power-saving state.
Further, the control circuit is further configured to: comparing the sampling voltage with a second reference voltage, and if the second reference voltage is less than the sampling voltage and less than the first reference voltage, maintaining the current first power saving state; if the sampling voltage is less than the second reference voltage, the control circuit further controls the audio circuit to reduce the output volume of the Bluetooth sound box and/or controls the radio frequency circuit to reduce the transmitting power of the radio frequency circuit to enter a second power saving state.
Further, the control circuit is further configured to: comparing the sampling voltage with a third reference voltage, and if the third reference voltage is less than the sampling voltage and less than the second reference voltage, maintaining the current second power saving state; and if the sampling voltage is less than the third reference voltage, controlling the Bluetooth sound box to shut down.
Further, the first reference voltage is 4.5V, the second reference voltage is 3.2V, and the third reference voltage is 2.9V.
Further, the step of reducing the output volume of the bluetooth sound box is to reduce the output volume of the bluetooth sound box to the minimum volume; the reducing of the transmission power of the radio frequency circuit is to reduce the transmission power of the radio frequency circuit by half.
Further, the charging input port is an input pin of the bluetooth chip; the analog-to-digital converter samples the voltage of the input pin of the Bluetooth chip and converts the sampled analog voltage into digital voltage to be output to the control circuit.
Furthermore, when the bluetooth speaker is in a state of being charged through the charging connection line and playing music at the same time, the control circuit is used for comparing the sampling voltage with the first reference voltage.
According to another aspect of the present invention, there is provided a method for improving music playing card during charging of a bluetooth speaker, the bluetooth speaker including an analog-to-digital converter, a control circuit, a charging circuit, an audio circuit, and a radio frequency circuit, an input terminal of the analog-to-digital converter being connected to a charging input port of the bluetooth speaker, the analog-to-digital converter being configured to sample a voltage at the charging input port of the bluetooth speaker and output the sampled voltage to the control circuit, the method including: the control circuit is used for comparing the sampling voltage with a first reference voltage, if the sampling voltage is greater than the first reference voltage, the current normal state is maintained, and music is played normally while charging; if the sampling voltage is smaller than the first reference voltage, the control circuit controls the charging circuit to reduce the charging current provided by the charging circuit for the battery, and the battery enters a first power-saving state.
Further, the control circuit is further configured to: comparing the sampling voltage with a second reference voltage, and if the second reference voltage is less than the sampling voltage and less than the first reference voltage, maintaining the current first power saving state; if the sampling voltage is less than the second reference voltage, the control circuit further controls the audio circuit to reduce the output volume of the Bluetooth sound box and/or controls the radio frequency circuit to reduce the transmitting power of the radio frequency circuit and enter a second power saving state, and the control circuit is further used for: comparing the sampling voltage with a third reference voltage, and if the third reference voltage is less than the sampling voltage and less than the second reference voltage, maintaining the current second power saving state; and if the sampling voltage is less than the third reference voltage, controlling the Bluetooth sound box to shut down.
Compared with the prior art, the power consumption of the Bluetooth sound box is reduced and the smoothness of music playing is preferentially ensured by sampling the voltage of the charging input port of the Bluetooth sound box when the sampling voltage is too low.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is a schematic structural diagram of a bluetooth speaker in an embodiment of the present invention.
Fig. 2 is a flowchart of a method for improving music playing card during charging of a bluetooth speaker in the present invention.
[ detailed description ] embodiments
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Through a great deal of experimental research and analysis, the inventor finds that the cause of the pause phenomenon of playing music when the bluetooth speaker is charged is mainly that the charging impedance is too large, and the possible causes of the charging impedance being large are the following two types:
1. the resistance of the charging connection line is large, for example, the charging connection line is too long, and the resistance is larger as the lead is longer; the charging connection line is too thin, and the smaller the diameter of the wire, the greater its resistance.
2. The contact resistance of the interface of the charging connecting wire and the Bluetooth sound box is large. The general connecting wire that charges can be connected to bluetooth speaker through a mini-usb interface or micro-usb interface, and some circumstances such as the user inserts askewly, or long-term plug leads to the interface wearing and tearing, all can make the interface contact of the connecting wire that charges not good, leads to the contact resistance grow of interface.
When giving bluetooth speaker through the connecting wire that charges, the user still chooses the music of broadcast simultaneously this moment, if the impedance of charging connection is great (for example, the resistance on the connecting wire that charges is bigger than normal and/or the contact resistance of charging the connecting wire interface is bigger than normal), can lead to the electric current voltage drop on this impedance too big, if the voltage is low to a certain extent, be less than the required minimum voltage of bluetooth circuit work promptly, then can lead to the unable normal work of bluetooth system to play music can appear blocking and pausing phenomenon when making bluetooth speaker charge.
When the charging connection impedance is larger, how to improve the phenomenon that the playing music is blocked when the Bluetooth sound box is charged is to improve the satisfaction degree of users and the quality of products, which is the improvement purpose of the invention.
Please refer to fig. 1, which is a schematic connection diagram of a part of functional modules of a bluetooth speaker according to an embodiment of the present invention. The bluetooth speaker shown in fig. 1 includes an analog-to-digital converter 110, a control circuit 120, a charging circuit 130, an audio circuit 140, and a radio frequency circuit 150. Wherein, the input end of the analog-to-digital converter 110 is connected with the charging input port of the bluetooth speaker.
The analog-to-digital converter 110 is configured to sample a voltage at a charging input port of the bluetooth speaker, and output the sampled sampling voltage to the control circuit 120. The control circuit 120 controls the working states of the charging circuit 130, the audio circuit 140 and the radio frequency circuit 150 based on the received sampling voltage, so that the phenomenon that the playing music is jammed when the bluetooth speaker is charged is improved. In the embodiment shown in fig. 1, the charging input port is an input pin VCHG of the bluetooth chip; the ADC110 samples the voltage of the input pin VCHG of the bluetooth chip, and converts the sampled analog voltage into a digital voltage to output to the control circuit 120.
Please refer to fig. 2, which is a flowchart illustrating a method for improving music playing during charging of a bluetooth speaker according to an embodiment of the present invention. The following describes in detail the operation flow of the method for improving music playing card during charging of the bluetooth speaker shown in fig. 2 with reference to fig. 1, where the method includes the following steps.
In step 240, the control circuit 120 controls the charging circuit 130 to reduce the charging current provided by the charging circuit 130 to the battery (e.g., a lithium battery in a bluetooth speaker), and enters a first power saving state.
In the embodiment shown in fig. 2, the first reference voltage > the second reference voltage > the third reference voltage.
In a preferred embodiment, the first reference voltage is 4.5V, the second reference voltage is 3.2V, and the third reference voltage is 2.9V.
In one embodiment, before step 210, the bluetooth speaker may be in a charging state through the charging connection and simultaneously playing music.
In summary, in the present invention, when it is detected that the voltage drop of the system current is too large (i.e. the voltage of the input pin of the bluetooth chip VCHG is relatively low) due to the large charging connection impedance, the charging current provided by the charging circuit 130 to the lithium battery is first reduced, then the output volume of the speaker is reduced, and then the transmitting power of the bluetooth speaker is reduced, so that in the charging process, the power consumption of the bluetooth speaker for playing music is preferentially or maximally ensured, thereby improving the phenomenon of playing music stuck during charging of the bluetooth speaker.
The terms "connected," "connected," and "connecting" as used herein mean electrically connected, directly or indirectly.
It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the appended claims. Accordingly, the scope of the appended claims is not to be limited to the specific embodiments described above.
Claims (7)
1. A Bluetooth sound box is characterized by comprising an analog-to-digital converter, a control circuit, a charging circuit, an audio circuit and a radio frequency circuit,
the input end of the analog-to-digital converter is connected with the charging input port of the Bluetooth sound box, and the analog-to-digital converter is used for sampling the voltage of the charging input port of the Bluetooth sound box and outputting the sampled sampling voltage to the control circuit;
the control circuit is used for comparing the sampling voltage with a first reference voltage, if the sampling voltage is greater than the first reference voltage, the current normal state is maintained, and music is played normally while charging; if the sampling voltage is less than the first reference voltage, the control circuit controls the charging circuit to reduce the charging current provided by the charging circuit to the battery, enters a first power-saving state,
the control circuit is further configured to: comparing the sampling voltage with a second reference voltage, and if the second reference voltage is less than the sampling voltage and less than the first reference voltage, maintaining the current first power saving state; if the sampling voltage is less than the second reference voltage, the control circuit further controls the audio circuit to reduce the output volume of the Bluetooth sound box and/or controls the radio frequency circuit to reduce the transmitting power of the radio frequency circuit to enter a second power saving state.
2. The bluetooth speaker of claim 1, wherein the control circuit is further configured to: comparing the sampling voltage with a third reference voltage, and if the third reference voltage is less than the sampling voltage and less than the second reference voltage, maintaining the current second power saving state; and if the sampling voltage is less than the third reference voltage, controlling the Bluetooth sound box to shut down.
3. The Bluetooth speaker of claim 2,
the first reference voltage is 4.5V, the second reference voltage is 3.2V, and the third reference voltage is 2.9V.
4. The Bluetooth speaker of claim 1 or 2,
the step of reducing the output volume of the Bluetooth sound box is to reduce the output volume of the Bluetooth sound box to the minimum volume; the reducing of the transmission power of the radio frequency circuit is to reduce the transmission power of the radio frequency circuit by half.
5. The bluetooth speaker of claim 1, wherein the charging input port is an input pin of a bluetooth chip; the analog-to-digital converter samples the voltage of the input pin of the Bluetooth chip and converts the sampled analog voltage into digital voltage to be output to the control circuit.
6. The bluetooth speaker of claim 1, wherein the control circuit is configured to compare the sampled voltage with the first reference voltage when the bluetooth speaker is in a state of being charged via the charging connection and playing music at the same time.
7. A method for improving music playing blocking during charging of a Bluetooth sound box, wherein the Bluetooth sound box comprises an analog-to-digital converter, a control circuit, a charging circuit, an audio circuit and a radio frequency circuit, an input end of the analog-to-digital converter is connected with a charging input port of the Bluetooth sound box, the analog-to-digital converter is used for sampling the voltage of the charging input port of the Bluetooth sound box and outputting the sampled voltage to the control circuit, and the method comprises the following steps:
the control circuit is used for comparing the sampling voltage with a first reference voltage, if the sampling voltage is greater than the first reference voltage, the current normal state is maintained, and music is played normally while charging; if the sampling voltage is less than the first reference voltage, the control circuit controls the charging circuit to reduce the charging current provided by the charging circuit to the battery, enters a first power-saving state,
the control circuit is further configured to: comparing the sampling voltage with a second reference voltage, and if the second reference voltage is less than the sampling voltage and less than the first reference voltage, maintaining the current first power saving state; if the sampling voltage is less than the second reference voltage, the control circuit further controls the audio circuit to reduce the output volume of the Bluetooth sound box and/or controls the radio frequency circuit to reduce the transmitting power of the radio frequency circuit to enter a second power-saving state,
the control circuit is further configured to: comparing the sampling voltage with a third reference voltage, and if the third reference voltage is less than the sampling voltage and less than the second reference voltage, maintaining the current second power saving state; and if the sampling voltage is less than the third reference voltage, controlling the Bluetooth sound box to shut down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710934386.7A CN107484079B (en) | 2017-10-10 | 2017-10-10 | Bluetooth sound box and method for improving music playing jam during charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710934386.7A CN107484079B (en) | 2017-10-10 | 2017-10-10 | Bluetooth sound box and method for improving music playing jam during charging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107484079A CN107484079A (en) | 2017-12-15 |
| CN107484079B true CN107484079B (en) | 2020-05-01 |
Family
ID=60605240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710934386.7A Active CN107484079B (en) | 2017-10-10 | 2017-10-10 | Bluetooth sound box and method for improving music playing jam during charging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107484079B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222144A (en) * | 2007-01-10 | 2008-07-16 | 仁宝电脑工业股份有限公司 | Charging method for portable electronic device |
| CN103997076A (en) * | 2014-04-02 | 2014-08-20 | 广州三星通信技术研究有限公司 | Charging circuit in portable electronic device |
| CN205283785U (en) * | 2015-12-30 | 2016-06-01 | 广州市艾涛普电子有限公司 | A mobile power speaker |
| CN105922945A (en) * | 2016-04-27 | 2016-09-07 | 重庆长安汽车股份有限公司 | Method for supporting mobile phone quick charge on vehicle terminal USB port |
| CN107193226A (en) * | 2017-07-11 | 2017-09-22 | 广州飞傲电子科技有限公司 | The control method and system of the vehicle-mounted pattern of music player |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478171B (en) * | 2009-01-22 | 2010-12-29 | 珠海全志科技有限公司 | Power management system |
| TWI405084B (en) * | 2009-10-22 | 2013-08-11 | Giga Byte Tech Co Ltd | Multimedia system |
| TWI515996B (en) * | 2011-05-27 | 2016-01-01 | 緯創資通股份有限公司 | Power supply system with variable supply voltage |
| CN202258331U (en) * | 2011-10-21 | 2012-05-30 | 深圳市奥尼电子工业有限公司 | Small portable sound box capable of automatically switching playing modes |
| CN103219769B (en) * | 2013-04-17 | 2015-12-02 | 广东欧珀移动通信有限公司 | Method for charging batteries, batter-charghing system and mobile terminal |
| CN104052138B (en) * | 2014-05-28 | 2017-07-11 | 惠州Tcl移动通信有限公司 | The control method of temperature when a kind of intelligent mobile terminal and its charging |
| CN106303007A (en) * | 2016-08-08 | 2017-01-04 | 乐视控股（北京）有限公司 | Video broadcasting method, playing device and playback terminal |
-
2017
- 2017-10-10 CN CN201710934386.7A patent/CN107484079B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222144A (en) * | 2007-01-10 | 2008-07-16 | 仁宝电脑工业股份有限公司 | Charging method for portable electronic device |
| CN103997076A (en) * | 2014-04-02 | 2014-08-20 | 广州三星通信技术研究有限公司 | Charging circuit in portable electronic device |
| CN205283785U (en) * | 2015-12-30 | 2016-06-01 | 广州市艾涛普电子有限公司 | A mobile power speaker |
| CN105922945A (en) * | 2016-04-27 | 2016-09-07 | 重庆长安汽车股份有限公司 | Method for supporting mobile phone quick charge on vehicle terminal USB port |
| CN107193226A (en) * | 2017-07-11 | 2017-09-22 | 广州飞傲电子科技有限公司 | The control method and system of the vehicle-mounted pattern of music player |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107484079A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101682386B1 (en) | A portable charging apparatus and a charging method thereof and a charging system | |
| US9301045B2 (en) | Audio I O headset plug and plug detection circuitry | |
| US7564966B2 (en) | Recognition of audio device in portable terminal | |
| US20100104119A1 (en) | Audio output device | |
| CN101951421B (en) | Expansion use method for cell phone earphone interface | |
| CN103118191B (en) | Using control method and mobile terminal for iPhone wire control earphone | |
| CN102778918B (en) | Portable electron device | |
| US20120300962A1 (en) | Solar Powered Wireless Bluetooth Stereo Speaker With connectivity To MP3 Player | |
| CN204836506U (en) | Headset patch cord | |
| US9077195B2 (en) | Input-output circuit | |
| CN111586549B (en) | Earphone insertion detection circuit | |
| CN201750528U (en) | Audio processing device | |
| CN202503657U (en) | Earphone socket circuit, and portable terminal applying the same | |
| CN105163216A (en) | Automatic music playing method and earphone | |
| CN106231491B (en) | It is a kind of to eliminate the method for extracting power down POP sound | |
| CN101184284B (en) | Control method for judging earphone insertion type by mobile phone | |
| CN106256138A (en) | A kind of active noise reduction earphone is powered method, Apparatus and system | |
| CN107484079B (en) | Bluetooth sound box and method for improving music playing jam during charging | |
| CN105811515A (en) | Method and system for charging universal serial bus Bluetooth headset through mobile terminal | |
| CN107690813B (en) | The power supply circuit of earphone and earphone | |
| CN211909136U (en) | Automatic switching circuit with audio power amplifier output and electronic equipment thereof | |
| CN203661271U (en) | Loudspeaker box system with separable wireless headset | |
| CN110213427B (en) | Method and device for reducing call noise and intelligent terminal | |
| CN107872751A (en) | The signal converting method of Headphone accessory switching device and Headphone accessory | |
| CN217445510U (en) | Audio signal switching circuit and wireless earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |