CN102378089A - Speaker and electronic device - Google Patents

Speaker and electronic device Download PDF

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Publication number
CN102378089A
CN102378089A CN2010102981812A CN201010298181A CN102378089A CN 102378089 A CN102378089 A CN 102378089A CN 2010102981812 A CN2010102981812 A CN 2010102981812A CN 201010298181 A CN201010298181 A CN 201010298181A CN 102378089 A CN102378089 A CN 102378089A
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CN
China
Prior art keywords
electrically connected
power
induction coil
electric
loud speaker
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.)
Pending
Application number
CN2010102981812A
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Chinese (zh)
Inventor
杨宗隆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GUCHANG COMMUNICATION CO Ltd
Cotron Corp
Original Assignee
GUCHANG COMMUNICATION CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GUCHANG COMMUNICATION CO Ltd filed Critical GUCHANG COMMUNICATION CO Ltd
Priority to CN2010102981812A priority Critical patent/CN102378089A/en
Publication of CN102378089A publication Critical patent/CN102378089A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a speaker and an electronic device. The speaker comprises a shell, a magnet, a vibratory element, a circuit board and a magnetoelectric induction coil. The magnet is arranged in the shell. The vibratory element is arranged in the shell and used for vibrating relative to the magnet and sounding. The magnetoelectric induction coil is arranged on the vibratory element and used for inducing a magnetic field of the magnet and generating electric energy. The circuit board is arranged in the shell and is provided with two audio input terminals, two audio output terminals, two power input terminals and two power output terminals; the audio input terminals are respectively in electric connection with the audio output terminals; the power input terminals are respectively in electric connection with the power output terminals; the vibratory element is in electric connection with the audio output terminals; and the magnetoelectric induction coil is in electric connection with the power input terminals.

Description

Loud speaker and electronic installation
Technical field
The present invention relates to a kind of loud speaker and electronic installation, and particularly relate to a kind of loud speaker and electronic installation that self can produce electric energy.
Background technology
Along with science and technology is constantly progressive, towards the trend development of light and handy miniaturization, people can use the electronic product of miniaturization, Source Music or walkman etc. whenever and wherever possible to electronic product invariably.In addition, owing to day by day popularizing of individual digital product, for example common MP3 walkman, mobile phone, PDA(Personal Digital Assistant) or notebook computer etc., daily life is indispensable especially.In addition, the mobile phone in conjunction with broadcast receiver and MP3 function also occurs.
No matter be above-mentioned which kind of electronic product, in order to let the user under the situation of not disturbing other people, listen to the sound information that electronic product provides, earphone has become the necessary accessory of electronic product.In addition; Earphone also provides listens the preferable transfer voice of hearer; Make and listen the hearer and can clearly hear and understand sound-content; Be unlike in the air transmission sound and can cause unsharp situation, and particularly during the user moves, for example in motion, drive, also can not be affected under the fierce movable or noisy environment.
In order to drive the earphone sounding, wired earphone is to obtain electric energy by earphone cord from player.Yet player often adopts portable design, must be apt to add utilize limited electric energy, and also unnecessary electric energy is carried out other functions with regard to being difficult to that wired earphone is provided.On the other hand, the battery built in then being to use of wireless headset receives signal and sounding.Similarly, wireless headset also must be apt to add utilize limited electric energy, and also just difficult have unnecessary electric energy to carry out other functions.
Summary of the invention
The object of the present invention is to provide a kind of loud speaker, it is not enough and can't carry out the problem of additional function that it can solve electric energy.
A purpose more of the present invention is to provide a kind of electronic installation, and its loud speaker can generate electricity to solve the not enough problem of electric energy.
For reaching above-mentioned purpose, loud speaker of the present invention comprises a housing, a magnet, a vibrating member, a circuit board and a magnetoelectric induction coil.Magnet configuration is in housing.Vibrating member is disposed in the housing, the sounding in order to relative magnet vibration.The magnetoelectric induction coil configuration produces electric energy in order to the magnetic field of induced magnet on vibrating member.Circuit board arrangement is in housing, and has two message input terminals, two message lead-out terminals, two power input terminals and two power output terminals.The message input terminal is electrically connected the message lead-out terminal respectively.Power input terminal is the electric connection of power supply lead-out terminal respectively.Vibrating member is electrically connected the message lead-out terminal.Magnetoelectric induction coil electric connection of power supply input terminal.
In one embodiment of this invention, vibrating member comprises a vibrating diaphragm and is disposed at the coil on the vibrating diaphragm.Coil is electrically connected the message lead-out terminal.
In one embodiment of this invention, loud speaker more comprises a power-supply controller of electric, is electrically connected the magnetoelectric induction coil.In addition, loud speaker can more comprise a rechargeable battery, is electrically connected the magnetoelectric induction coil to store the electric energy that the magnetoelectric induction coil produces via power-supply controller of electric.In addition, but power-supply controller of electric electric connection of power supply input terminal, and power output terminal is electrically connected rechargeable battery.Moreover power-supply controller of electric for example comprises a rectifier and a battery charge chip, and the magnetoelectric induction coil is electrically connected rectifier, and rectifier is electrically connected the battery charge chip, and the battery charge chip is electrically connected rechargeable battery.Power-supply controller of electric is configurable on circuit board, and power input terminal is via power-supply controller of electric electric connection of power supply lead-out terminal.
Electronic installation of the present invention comprises a message generator and a loud speaker.Loud speaker comprises a housing, a magnet, a vibrating member, a circuit board and a magnetoelectric induction coil.Magnet configuration is in housing.Vibrating member is disposed in the housing, the sounding in order to relative magnet vibration.The magnetoelectric induction coil configuration produces electric energy in order to the magnetic field of induced magnet on vibrating member.Circuit board arrangement is in housing, and has two message input terminals, two message lead-out terminals, two power input terminals and two power output terminals.The message input terminal is electrically connected the message lead-out terminal respectively.Power input terminal is the electric connection of power supply lead-out terminal respectively.Vibrating member is electrically connected the message lead-out terminal.Magnetoelectric induction coil electric connection of power supply input terminal.The message generator is electrically connected the message input terminal.
In one embodiment of this invention, vibrating member comprises a vibrating diaphragm and is disposed at the coil on the vibrating diaphragm.Coil is electrically connected the message lead-out terminal.
In one embodiment of this invention, electronic installation more comprises a power-supply controller of electric, is electrically connected the magnetoelectric induction coil.In addition, electronic installation can more comprise a rechargeable battery, is electrically connected the magnetoelectric induction coil to store the electric energy that the magnetoelectric induction coil produces via power-supply controller of electric.In addition, but power-supply controller of electric electric connection of power supply lead-out terminal.Moreover power-supply controller of electric for example comprises a rectifier and a battery charge chip, and the magnetoelectric induction coil is electrically connected rectifier, and rectifier is electrically connected the battery charge chip, and the battery charge chip is electrically connected rechargeable battery.Power-supply controller of electric is configurable on circuit board, and power input terminal is via power-supply controller of electric electric connection of power supply lead-out terminal.
Based on above-mentioned, the electric energy that electronic installation of the present invention and loud speaker magnetoelectric induction coil capable of using produces is carried out additional function.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and cooperates appended accompanying drawing to elaborate as follows.
Description of drawings
Fig. 1 is the cut-away view of the loud speaker of one embodiment of the invention;
Fig. 2 is the front view of circuit board of an embodiment of the loud speaker of Fig. 1;
Fig. 3 is the calcspar of partial circuit of the loud speaker of Fig. 1;
Fig. 4 is the front view of circuit board of another embodiment of the loud speaker of Fig. 1;
Fig. 5 A and Fig. 5 B are the circuit diagrams of two kinds of embodiment of the power-supply controller of electric of Fig. 3;
Fig. 6 is the cut-away view of the loud speaker of another embodiment of the present invention;
Fig. 7 is the circuit block diagram of the electronic installation of one embodiment of the invention.
The main element symbol description
100,200,320: loud speaker
110,210: housing
120,220,222: magnet
130,230: vibrating member
132,232: vibrating diaphragm
134,234: coil
140,240: the magnetoelectric induction coil
160A, 160B: circuit board
162: the message lead-out terminal
164: the message input terminal
166: power input terminal
168: power output terminal
170,270,272: magnetic conductive part
182,340: rechargeable battery
184,330: power-supply controller of electric
184A: rectifier
184B: battery charge chip
T10: input terminal
T20: lead-out terminal
300: electronic installation
Embodiment
Fig. 1 is the cut-away view of the loud speaker of one embodiment of the invention.Please with reference to Fig. 1, the loud speaker 100 of present embodiment comprises a housing 110, a magnet 120, a vibrating member 130 and a magnetoelectric induction coil 140.Magnet 120 is disposed in the housing 110.Vibrating member 130 is disposed in the housing 110, the sounding in order to relative magnet 120 vibrations.Magnetoelectric induction coil 140 is disposed on the vibrating member 130, produces electric energy in order to the magnetic field of induced magnet 120.When loud speaker 100 during at sounding, vibrating member 130 can relative magnet 120 vibrations, and the magnetoelectric induction coil 140 relative magnet 120 that drive on the vibrating member 130 vibrate.The magnetic field of the magnet 120 that magnetoelectric induction coil 140 is sensed in vibration has variation strong and weak and direction, and therefore produces electric energy.Mode though loud speaker 100 consumed powers of present embodiment come sounding, also can produce electric energy by magnetoelectric induction coil 140 simultaneously thus.The electric energy that magnetoelectric induction coil 140 produces can supply loud speaker 100 to carry out additional function, also meets the environmental protection trend of carbon reduction now.The loud speaker 100 of present embodiment not only can be applicable to earphone, also can be applicable to the loudspeaker of sound equipment or the loud speaker of other patterns.
The vibrating member 130 of present embodiment comprises a vibrating diaphragm 132 and is disposed at the coil 134 on the vibrating diaphragm 132.When coil 134 produced the variation in magnetic field because of the variation of the signal of telecommunication of input, the magnetic field of coil 134 can interact with the magnetic field of magnet 120 and cause moving of coil 134, and then drive vibrating diaphragm 132 produces vibration to sound.Yet in other embodiments, vibrating member 130 also can be other kenels, as long as can drive magnetoelectric induction coil 140 relative magnet 120 vibrations on the vibrating member 130, just can produce electric energy by magnetoelectric induction coil 140.
Fig. 2 is the front view of circuit board of an embodiment of the loud speaker of Fig. 1.Please with reference to Fig. 1 and Fig. 2, the loud speaker 100 of present embodiment more comprises a circuit board 160A, is disposed at housing 110.Circuit board 160A has two message lead-out terminals 162, two message input terminals 164, two power input terminals 166 and two power output terminals 168, only schematically illustrates the part terminal among Fig. 1.Each message input terminal 164 is electrically connected a message lead-out terminal 162.Each power input terminal 166 is electrically connected a power output terminal 168.Vibrating member 130 is electrically connected message lead-out terminal 162.In the present embodiment, message lead-out terminal 162 is the two ends that are electrically connected the coil 134 of vibrating member 130, to transmit sound source signal to coil 134.Magnetoelectric induction coil 140 is electric connection of power supply input terminal 166 directly or indirectly, so the induced current of magnetoelectric induction coil 140 can outwards be exported via power output terminal 168.In addition, present embodiment is that the same surface that all is positioned at circuit board 160A with message lead-out terminal 162, message input terminal 164, power input terminal 166 and power output terminal 168 is an example, but these terminals also can be positioned at the different surfaces of circuit board 160A.
The magnetoelectric induction coil 140 of present embodiment is a coil, but also can adopt the magnetoelectric induction coil of different kenels in other embodiments.In addition, the loud speaker 100 of present embodiment can more comprise a magnetic conductive part (yoke) 170, is disposed on the magnet 120.The magnetoelectric induction coil 140 of present embodiment is the magnetic field of induced magnet 120 and produce electric energy.
Fig. 3 is the calcspar of partial circuit of the loud speaker of Fig. 1.Please with reference to Fig. 1 and Fig. 3, the loud speaker 100 of present embodiment more comprises a rechargeable battery 182, is electrically connected magnetoelectric induction coil 140 directly or indirectly to store the electric energy that magnetoelectric induction coil 140 produces.In other words, rechargeable battery 182 can store the electric energy that magnetoelectric induction coil 140 produces, and with this electric energy be used for sounding, wireless signal receives or change and do his and use.In addition, the loud speaker 100 of present embodiment can more comprise a power-supply controller of electric 184, is electrically connected between rechargeable battery 182 and the magnetoelectric induction coil 140, can suitably be stored to guarantee the electric energy that magnetoelectric induction coil 140 produces.Rechargeable battery 182 and power-supply controller of electric 184 are configurable in housing 110 or be positioned at outside the housing 110.Loud speaker 100 also can only have power-supply controller of electric 184 and not have rechargeable battery 182.
Please with reference to Fig. 2 and Fig. 3, magnetoelectric induction coil 140 can be electrically connected the power input terminal 166 of circuit board 160A, power output terminal 168 electric connection of power supply controllers 184, and power-supply controller of electric 184 is electrically connected rechargeable battery 182 again.Perhaps, but magnetoelectric induction coil 140 electric connection of power supply controllers 184, power-supply controller of electric 184 is electrically connected the power input terminal 166 of circuit board 160A, and power output terminal 168 is electrically connected rechargeable battery 182 again.
Fig. 4 is the front view of circuit board of another embodiment of the loud speaker of Fig. 1.Please with reference to Fig. 2 and Fig. 4, the difference of the circuit board 160B of present embodiment and the circuit board 160A of Fig. 2 is that power-supply controller of electric 184 is to be disposed at circuit board 160B.Please with reference to Fig. 3 and Fig. 4, magnetoelectric induction coil 140 can be electrically connected between the power input terminal 166 and power output terminal 168 of circuit board 160B, and power output terminal 168 is electrically connected rechargeable battery 182 again.
Please with reference to Fig. 3; When the power-supply controller of electric 184 of present embodiment will be used to rechargeable battery 182 chargings; Power-supply controller of electric 184 can comprise a rectifier 184A and a battery charge chip 184B; Magnetoelectric induction coil 140 is electrically connected rectifier 184A, and rectifier 184A is electrically connected battery charge chip 184B, and battery charge chip 184B is electrically connected rechargeable battery 182.At present, rechargeable battery 182 on the market all has complicated standard for the program of charging, therefore needs to control charging procedure by battery charge chip 184B, really rechargeable battery 182 is carried out desirable charging.For example, battery charge chip 184B can charge for rechargeable battery 182 with the mode of deciding electric current in the control of charging initial stage.Rechargeable battery 182 exportable voltages are stable reach preset value after, the mode that battery charge chip 184B can control decide voltage continues to charge for rechargeable battery 182.
Fig. 5 A and Fig. 5 B are the circuit diagrams of two kinds of embodiment of rectifier of the power-supply controller of electric of Fig. 3.The rectifier 184A of the power-supply controller of electric 184 of Fig. 3 can adopt the circuit framework shown in Fig. 5 A or Fig. 5 B.Please with reference to Fig. 4, Fig. 5 A and Fig. 5 B, the input terminal T10 of rectifier 184A can be electrically connected on the power input terminal 166 of circuit board 160B, and lead-out terminal T20 can be electrically connected on power output terminal 168.Perhaps, please with reference to Fig. 2, Fig. 5 A and Fig. 5 B, the input terminal T10 of rectifier 184A can be electrically connected on the power output terminal 168 of circuit board 160B, or the lead-out terminal T20 of rectifier 184A can be electrically connected on power input terminal 166.
Fig. 6 is the cut-away view of the loud speaker of another embodiment of the present invention.Please with reference to Fig. 6, the loud speaker 200 of present embodiment is similar with the loud speaker 100 of last embodiment, below only introduces its difference place.The loud speaker 200 of present embodiment more comprises a vibrating diaphragm ring 250, a magnet 222 and a magnetic conductive part 272.Vibrating diaphragm ring 250 is disposed at housing 210, and vibrating diaphragm 232 is disposed on the vibrating diaphragm ring 250.Magnet 222, magnetic conductive part 272, magnet 220 are stacked and placed in the housing 210 with magnetic conductive part 270.It is other with magnetic conductive part 270 that the coil 234 of vibrating member 230 is positioned at magnet 220, and the magnetic field of coil 234 can interact with the magnetic field of magnet 220 and drive vibrating diaphragm 232 generation vibrations to sound.It is other with magnetic conductive part 272 that magnetoelectric induction coil 240 is positioned at magnet 222, produces electric energy with the magnetic field of induced magnet 222.
Fig. 7 is the circuit block diagram of the electronic installation of one embodiment of the invention.Please with reference to Fig. 7, the electronic installation 300 of present embodiment comprises a message generator 310 and a loud speaker 320.Loud speaker 320 can be the loud speaker 100 of Fig. 1, loud speaker 200 or other loud speakers that belongs to scope of the present invention of Fig. 6.That is be that loud speaker 320 has magnetoelectric induction coil (not illustrating) equally and can produce electric energy.The thin portion of loud speaker 320 forms and can repeat no more at this with reference to previous embodiment.Message generator 310 is electrically connected the message input terminal (like the message lead-out terminal 162 of Fig. 2) of loud speaker 320.The electronic installation 300 of present embodiment can be mobile phone, intercom, wireless headset or other electronic installations.The electronic installation 300 of present embodiment can more comprise power-supply controller of electric 330, with rechargeable battery 340.Power-supply controller of electric 330 can be independent of outside the loud speaker 320, perhaps power-supply controller of electric 330 also can in be built in loud speaker 320.The electric energy that the magnetoelectric induction coil of loud speaker 320 produces can offer rechargeable battery 340 via power-supply controller of electric 330, but the electric energy that the magnetoelectric induction coil of loud speaker 320 produces also can directly offer rechargeable battery 340.The thin bilge construction of power-supply controller of electric 330 can be with reference to the power-supply controller of electric 184 of figure 3.
In sum, but having the magnetic field of induced magnet, loud speaker of the present invention produces the magnetoelectric induction coil of electric energy.Therefore, the electric energy that loud speaker of the present invention magnetoelectric induction coil capable of using produces is carried out additional function, and reaches the environmental protection purpose of carbon reduction.Electronic installation of the present invention then adopts the loud speaker with the magnetoelectric induction coil that can produce electric energy.Therefore, the electric energy that the same magnetoelectric induction coil capable of using of electronic installation of the present invention produces is carried out additional function, and reaches the environmental protection purpose of carbon reduction.
Though disclosed the present invention in conjunction with above embodiment; Yet it is not in order to limit the present invention; Be familiar with this operator in the technical field under any; Do not breaking away from the spirit and scope of the present invention, can do a little change and retouching, thus protection scope of the present invention should with enclose claim was defined is as the criterion.

Claims (16)

1. loud speaker comprises:
Housing;
Magnet is disposed in this housing;
Vibrating member is disposed in this housing, the sounding in order to relative this magnet vibration;
The magnetoelectric induction coil is disposed on this vibrating member, produces electric energy in order to the magnetic field of responding to this magnet; And
Circuit board; Be disposed at this housing; Wherein this circuit board has two message input terminals, two message lead-out terminals, two power input terminals and two power output terminals, and those message input terminals are electrically connected those message lead-out terminals respectively, and those power input terminals are electrically connected those power output terminals respectively; This vibrating member is electrically connected those message lead-out terminals, and this magnetoelectric induction coil is electrically connected those power input terminals.
2. loud speaker as claimed in claim 1, wherein this vibrating member comprises vibrating diaphragm and is disposed at the coil on this vibrating diaphragm.
3. loud speaker as claimed in claim 2, this coil wherein, it is electrically connected those message lead-out terminals.
4. loud speaker as claimed in claim 1 also comprises power-supply controller of electric, is electrically connected this magnetoelectric induction coil.
5. loud speaker as claimed in claim 4 also comprises rechargeable battery, is electrically connected this magnetoelectric induction coil to store the electric energy that this magnetoelectric induction coil produces via this power-supply controller of electric.
6. loud speaker as claimed in claim 5, wherein this power-supply controller of electric is electrically connected those power input terminals, and those power output terminals are electrically connected this rechargeable battery.
7. loud speaker as claimed in claim 5, wherein this power-supply controller of electric comprises rectifier and battery charge chip, and this magnetoelectric induction coil is electrically connected this rectifier, and this rectifier is electrically connected this battery charge chip, and this battery charge chip is electrically connected this rechargeable battery.
8. loud speaker as claimed in claim 4, wherein this power-supply controller of electric is disposed on this circuit board, and those power input terminals are electrically connected those power output terminals via this power-supply controller of electric.
9. electronic installation comprises:
The message generator; And
Loud speaker comprises:
Housing;
Magnet is disposed in this housing;
Vibrating member is disposed in this housing, the sounding in order to relative this magnet vibration;
The magnetoelectric induction coil is disposed on this vibrating member, produces electric energy in order to the magnetic field of responding to this magnet; And
Circuit board; Be disposed at this housing, wherein this circuit board has two message input terminals, two message lead-out terminals, two power input terminals and two power output terminals, and those message input terminals are electrically connected those message lead-out terminals respectively; Those power input terminals are electrically connected those power output terminals respectively; This vibrating member is electrically connected those message lead-out terminals, and this magnetoelectric induction coil is electrically connected those power input terminals, and this message generator is electrically connected those message input terminals.
10. electronic installation as claimed in claim 9, wherein this vibrating member comprises vibrating diaphragm and is disposed at the coil on this vibrating diaphragm.
11. electronic installation as claimed in claim 10, wherein this coil is electrically connected those message lead-out terminals.
12. electronic installation as claimed in claim 9 also comprises power-supply controller of electric, is electrically connected this magnetoelectric induction coil.
13. electronic installation as claimed in claim 12 also comprises rechargeable battery, is electrically connected this magnetoelectric induction coil to store the electric energy that this magnetoelectric induction coil produces via this power-supply controller of electric.
14. electronic installation as claimed in claim 13, wherein this power-supply controller of electric is electrically connected those power output terminals.
15. electronic installation as claimed in claim 13; Wherein this power-supply controller of electric comprises rectifier and battery charge chip; This magnetoelectric induction coil is electrically connected this rectifier, and this rectifier is electrically connected this battery charge chip, and this battery charge chip is electrically connected this rechargeable battery.
16. electronic installation as claimed in claim 12, wherein this power-supply controller of electric is disposed on this circuit board, and those power input terminals are electrically connected those power output terminals via this power-supply controller of electric.
CN2010102981812A 2010-08-17 2010-09-28 Speaker and electronic device Pending CN102378089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102981812A CN102378089A (en) 2010-08-17 2010-09-28 Speaker and electronic device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201010256558 2010-08-17
CN201010256558.8 2010-08-17
CN2010102981812A CN102378089A (en) 2010-08-17 2010-09-28 Speaker and electronic device

Publications (1)

Publication Number Publication Date
CN102378089A true CN102378089A (en) 2012-03-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102981812A Pending CN102378089A (en) 2010-08-17 2010-09-28 Speaker and electronic device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199602A (en) * 2013-03-15 2013-07-10 上海斐讯数据通信技术有限公司 Mobile terminal charging system and mobile terminal charging method
CN111970622A (en) * 2020-06-09 2020-11-20 深圳前海振百易科技有限公司 Loudspeaker capable of generating power and implementation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004221743A (en) * 2003-01-10 2004-08-05 Matsushita Electric Ind Co Ltd Electromechanical transducer and mobile device using the same
US20060280330A1 (en) * 2005-06-08 2006-12-14 Pioneer Corporation Speaker device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004221743A (en) * 2003-01-10 2004-08-05 Matsushita Electric Ind Co Ltd Electromechanical transducer and mobile device using the same
US20060280330A1 (en) * 2005-06-08 2006-12-14 Pioneer Corporation Speaker device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199602A (en) * 2013-03-15 2013-07-10 上海斐讯数据通信技术有限公司 Mobile terminal charging system and mobile terminal charging method
CN111970622A (en) * 2020-06-09 2020-11-20 深圳前海振百易科技有限公司 Loudspeaker capable of generating power and implementation method thereof

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Application publication date: 20120314