CN202424837U - Wireless speech audio equipment terminal - Google Patents
Wireless speech audio equipment terminal Download PDFInfo
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- CN202424837U CN202424837U CN2012200250323U CN201220025032U CN202424837U CN 202424837 U CN202424837 U CN 202424837U CN 2012200250323 U CN2012200250323 U CN 2012200250323U CN 201220025032 U CN201220025032 U CN 201220025032U CN 202424837 U CN202424837 U CN 202424837U
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Abstract
The utility model discloses a wireless speech audio equipment terminal and relates to wireless audio transfer equipment. According to the terminal, the power line of a universal serial bus (USB) socket supplies power to a power conversion control circuit and a data/charging socket; the data line of the USB socket is correspondingly connected with the data line of the data/charging socket; the power conversion control circuit supplies power to a main control unit (MCU); the three groups of control/state ends of the MCU are respectively connected with the control/state ends of a bluetooth module, a wireless communication module or an audio signal processing unit; the two groups of control output ends of the MCU are respectively connected with the control input ends of a signal selector or the power conversion control circuit, the three data ends of the signal selector are respectively connected with the data ends of the bluetooth module, the audio signal processing unit or the wireless communication module, and the power conversion control circuit selectively supplies power to the bluetooth module, the signal selector, the audio signal processing unit or the wireless communication module; and the wireless communication module is wirelessly connected with a wireless communication handle.
Description
Technical field
The utility model relates to a kind of ANTENNAUDIO interconnecting device.
Background technology
Intelligent wireless voice audio frequency apparatuses such as existing mobile phone with bluetooth interface or palmtop PC; Obtain general use; The radiation damage that by the intelligent wireless voice audio frequency apparatus user's head is brought when making a phone call for a long time; People are desirably in office or the residence this intelligent wireless voice audio frequency apparatus and hands-free message equipment are coupled together, and carry out hand-free call.For example; It is ZL 200420103249.7 that China utility model patent specification CN2894101Y discloses the patent No., and name is called the technical scheme of " bluetooth handsfree device ", proposes this device and comprises compositions such as MCU main control unit, Audio Processing amplifying unit, bluetooth unit, power source conversion control circuit; Utilize the power supply of automobile cigarette lighter as device; Insert through interface circuit with bluetooth cellular phone or common mobile phone, as hands-free input, with the other end of bluetooth handsfree as input; After handling by the bluetooth module signal decoding and through denoising power amplification etc., with automobile audio and loudspeaker as hands-free output.Transfer is used above-mentioned technology and is combined with charging circuit, forms bluetooth charging/hand-free call terminal and can satisfy the requirement of people to intelligent wireless voice audio frequency apparatus charging/hand-free call., the intelligent wireless voice audio frequency apparatus be connected with this terminal charge in, with regard to inconvenient user around (for example other corner in this room or near room) walking about and making a phone call; Thereby people expectation combines this terminal and certain wireless communication equipment, makes that the intelligent wireless voice audio frequency apparatus in the charging can be realized making a phone call in mobile through this wireless communication equipment.Further, people's expectation couples together this terminal and outside data equipment, makes that the intelligent wireless voice audio frequency apparatus in the charging can be through this terminal and outside data equipment swap data.
The utility model content
The utility model aims to provide a kind of wireless speech audio frequency apparatus terminal of realizing above-mentioned multiple functional requirement.
The technical scheme of the utility model is: wireless speech audio frequency apparatus terminal has MCU main control unit, power source conversion control circuit, audio signal processing unit, bluetooth module; It is characterized in that: it also has signal selector, wireless communication module, USB socket, data/charging socket and radio communication handle; The power line of USB socket is to power source conversion control circuit and data/charging socket power supply; The corresponding data wire that connects data/charging socket of the data wire of USB socket; The power source conversion control circuit is supplied power to the MCU main control unit; Three groups of control/state ends of MCU main control unit connect control/state end or the control/state end of wireless communication module or the control/state end of audio signal processing unit of bluetooth module respectively; Two groups of control output ends of MCU main control unit connect the control input end of signal selector or the control input end of power source conversion control circuit respectively; Three data terminals of signal selector connect data terminal or the data terminal of audio signal processing unit or the data terminal of wireless communication module of bluetooth module respectively, and the power source conversion control circuit is selectively to bluetooth module or signal selector or audio signal processing unit or powered; Wireless communication module becomes wireless link with the radio communication handle.
The corresponding connection of data/charging socket with data/charging socket with the intelligent wireless voice audio frequency apparatus at this terminal; Again with the corresponding connection of USB socket of USB socket with the external data equipment at this terminal; Can this intelligent wireless voice audio frequency apparatus be charged by the data equipment of outside, and swap data.After the bluetooth module of this intelligent wireless voice audio frequency apparatus and the bluetooth module in this terminal are set up Radio Link; No matter be outside data equipment warp and the USB socket at this terminal charges to the intelligent wireless voice audio frequency apparatus; Still do not make the other times that charge; Under the control of the MCU main control unit in this terminal; (1) make signal selector cut off the annexation of data terminal of data terminal and wireless communication module of data terminal and the audio signal processing unit of bluetooth module; The power supply of conversion control circuit of cutting off the electricity supply accordingly simultaneously to bluetooth module, audio signal processing unit and wireless communication module; The wireless link of the wireless link of the bluetooth module of cut-out bluetooth module and intelligent wireless voice audio frequency apparatus and the wireless communication module of wireless communication module and radio communication handle, this terminal are in dormancy (soft-off) state that economizes on electricity most.Or; (2) make signal selector cut off the annexation of data terminal of data terminal and wireless communication module of data terminal and the audio signal processing unit of bluetooth module; Cut off the electricity supply the accordingly simultaneously power supply of conversion control circuit audio signal processing unit; Reservation is to the power supply of bluetooth module and wireless communication module; Keep bluetooth module and the MIN wireless link of bluetooth module of intelligent wireless voice audio frequency apparatus and the MIN wireless link of wireless communication module of wireless communication module and radio communication handle, this terminal is in the holding state of more electricity saving.Perhaps; (3) make signal selector that the data terminal of bluetooth module is connected the data terminal of audio signal processing unit and the data terminal of wireless communication module simultaneously; Simultaneously make the power source conversion control circuit accordingly to audio signal processing unit and powered; Wireless communication module becomes wireless link with the radio communication handle, the user just can be at this terminal and the radio communication handle obtain the tinkle of bells of conversation (incoming call).At this moment, this terminal is in maximum power supply output state.Perhaps; (4) can make signal selector the data terminal of bluetooth module connected the data terminal of audio signal processing unit sound intermediate frequency codec; Make simultaneously of the audio codec power supply of power source conversion control circuit accordingly, then can realize hand-free call to audio signal processing unit.At this moment, wireless controller is in the holding state of more electricity saving.Perhaps; (5) make signal selector the data terminal of bluetooth module connected the data terminal of wireless communication module; Simultaneously make the power source conversion control circuit accordingly to powered; Wireless communication module becomes wireless link with the radio communication handle, and the user just can use radio communication handle in moving, make a phone call (handle talking state).At this moment, no longer to the audio signal processing unit power supply, the part electric energy can be saved in this terminal to the power source conversion control circuit.
Implement in the structure at preferred power source conversion control circuit: be provided with battery, charging circuit and D.C. regulated power supply in the described power source conversion control circuit, D.C. regulated power supply has control input end, one tunnel normality output and four road abnormal outputs; The power line of described USB socket connects the input of charging circuit, and the output of charging circuit connects battery; Battery is to the supplying power for input end of D.C. regulated power supply; The normality output of D.C. regulated power supply is supplied power to described MCU main control unit; The control input end of D.C. regulated power supply connects the corresponding control output end of MCU main control unit, and four road abnormal outputs of D.C. regulated power supply are respectively to described bluetooth module, described signal selector, described audio signal processing unit and described powered.This power source conversion control circuit has utilized the USB socket of outside data equipment to obtain low-voltage dc power supply, gives inner battery charge aperiodically; Thereby do not need to use for a long time power line fixedly to be connected on the electric main power supply, make this terminal put and use more flexible.This power source conversion control circuit utilizes the boost in voltage of D.C. regulated power supply with battery output; Form stable supply power voltage and supply with the MCU main control unit; And under the control of MCU main control unit, supply with bluetooth module, signal selector, audio signal processing unit and wireless communication module selectively; Each parts can both stably be worked, and economize on electricity.
And then: be provided with the 2nd MCU main control unit, second source conversion control circuit, second audio signal processing unit, second wireless communication module and charging socket in the described radio communication handle; The corresponding input that connects this second source conversion control circuit of the power line of this charging socket; This second source conversion control circuit is to the power supply of the 2nd MCU main control unit and selectively to this second wireless communication module or the power supply of this second audio signal processing unit; Two groups of control/state ends of the 2nd MCU main control unit connect the control/state end of this second wireless communication module or the control/state end of this second audio signal processing unit respectively, and the control output end of the 2nd MCU main control unit connects the control input end of this second source conversion control circuit; The data terminal of second audio signal processing unit connects the data terminal of second wireless communication module.This radio communication handle can utilize the 2nd MCU main control unit control second source conversion control circuit to second wireless communication module and the power supply of second audio signal processing unit; Make second audio signal processing unit when second wireless communication module is worked, also get into operating state; And be in resting state at ordinary times, thereby save the electric energy of power source conversion control circuit.
Implement in the structure preferred: the power line of said USB socket becomes dismountable corresponding connection with a corresponding connection of charging plug, this charging plug with described charging socket; Be provided with second battery, second charging circuit and second D.C. regulated power supply in the said second source conversion control circuit of said radio communication handle, this second D.C. regulated power supply has control input end, normality output and abnormal output; The power line of said charging socket connects the input of this second charging circuit, and the output of this second charging circuit connects this second battery; This second battery is to the supplying power for input end of this second D.C. regulated power supply; The normality output of this second D.C. regulated power supply is supplied power to described the 2nd MCU main control unit; The control input end of this second D.C. regulated power supply connects the control output end of described the 2nd MCU main control unit, and the abnormal output of this second D.C. regulated power supply is selectively to this second audio signal processing unit or described second powered.This radio communication handle has utilized the USB socket at terminal and charging plug to obtain low-voltage dc power supply, gives the second inner battery charge of the second source conversion control circuit aperiodically; Thereby need not to use power line to connect the electric main power supply in addition, make that the application of this radio communication handle is more flexible.
The utility model wireless speech audio frequency apparatus terminal adopts above-mentioned structure to realize the goal of the invention of multimode expansion intelligent wireless voice audio frequency apparatus function of use, can bring facility in many uses for intelligent wireless voice audio frequency apparatus user.
Description of drawings
Fig. 1 is the frame structure sketch map of the utility model wireless speech audio frequency apparatus embodiment in terminal.
Embodiment
One, embodiment one
The frame structure of the utility model wireless speech audio frequency apparatus embodiment in terminal, as shown in Figure 1, removable base 10 and radio communication handle 20 two parts of being divided in this terminal.
Have MCU main control unit, power source conversion control circuit, audio signal processing unit, bluetooth module 111, signal selector 105, wireless communication module 112, data/charging socket 121, USB socket 122 and additional charging socket 134 in the base 10.The MCU main control unit is made up of MCU processor 102, keyboard 103 and LED lamp 104.Audio signal processing unit is made up of audio codec 106, Mike 107 and loudspeaker 108.Be provided with D.C. regulated power supply 131, battery 132 and charging circuit 133 in the power source conversion control circuit, D.C. regulated power supply 131 has control input end, one tunnel normality output and four road abnormal outputs.
Be provided with the 2nd MCU main control unit, second source conversion control circuit, second audio signal processing unit, second wireless communication module 212 and charging socket 234 in the radio communication handle 20.The 2nd MCU main control unit is made up of the 2nd MCU processor 202, second keyboard 203 and the 2nd LED lamp 204.Second audio signal processing unit is made up of second audio codec 206, second Mike 207 and second loudspeaker 208.Be provided with second D.C. regulated power supply 231, second battery 232 and second charging circuit, 233, the second D.C. regulated power supplies 231 in the second source conversion control circuit and have control input end, one tunnel normality output and the abnormal output of two-way.
Single dotted line among Fig. 1 and arrow representative power supply relation.The 5V power supply of USB sockets 122 is connected the input of second input, charging plug 134 and charging circuit 133 of power line, the D.C. regulated power supply 131 of data/charging socket 121 in the base 10 with the ground wire correspondence.The output of charging circuit 133 connects battery 132; Battery 132 is to the first input end power supply of D.C. regulated power supply 131.The normality output of D.C. regulated power supply 131 is to 102 power supplies of the MCU of MCU main control unit processor; The control input end of D.C. regulated power supply 131 connects the control output end of MCU processor 102 correspondences in the MCU main control unit, and the abnormal output of the multichannel of D.C. regulated power supply 131 is supplied power to the audio codec 106 or the wireless communication module 112 of bluetooth module 111 and signal selector 105, audio signal processing unit respectively.321 one-tenth dismountable connections of data/charging socket of data/charging socket 121 and user's intelligent wireless voice audio frequency apparatus.234 one-tenth dismountable connections of charging socket in charging plug 134 and the radio communication handle 20.
The 5V power supply of charging socket 234 is connected the input of second charging circuit 233, second input of second D.C. regulated power supply 231 in the radio communication handle 20 with ground wire, and the output of second charging circuit 233 connects second battery 232; Second battery 232 is to the first input end power supply of second D.C. regulated power supply 231.The normality output of second D.C. regulated power supply 231 is to the 2nd MCU processor 102 power supplies of the 2nd MCU main control unit.Two abnormal outputs of second D.C. regulated power supply 231 are respectively to second audio codec, 206 power supplies of second wireless communication module 212, second audio signal processing unit.
Single solid line among Fig. 1 and arrow representative control/status signal relation.Three groups of control/state ends of MCU processor 102 connect control/state end or the control/state end of wireless communication module 112 or the control/state end of audio signal processing unit sound intermediate frequency codec 106 of bluetooth module 111 respectively in the base 10 interior MCU main control units.Two of MCU processor 102 control output ends connect the control input end of D.C. regulated power supply 131 in control input end and the power source conversion control circuit of signal selector 105 respectively in the MCU main control unit.
Two groups of control/state ends of the 2nd MCU processor 202 of the 2nd MCU main control unit connect the control/state end of second audio codec 206 in control/state end or second audio signal processing unit of second wireless communication module 212 respectively in the radio communication handle 20.The control input end of second D.C. regulated power supply 231 connects the control output end of the 2nd MCU processor 202 in the 2nd MCU main control unit.
Double solid line among Fig. 1 and arrow representative data relation.311 one-tenth wireless links of bluetooth module of bluetooth modules 111 and user's intelligent wireless voice audio frequency apparatus 30 in the base 10.The data terminal of bluetooth module 111 connects first data terminal of signal selector 105; Two other data terminal of signal selector 105 connects the data terminal of audio signal processing unit sound intermediate frequency codec 106 or the data terminal of wireless communication module 112 respectively.The corresponding data wire that connects data/charging socket 121 of the data wire of USB socket 122.In the radio communication handle 20 in second audio signal processing unit data terminal of second audio codec 206 connect the data terminal of second wireless communication module 212.
Doublet among Fig. 1 and arrow are represented the wireless link relation.311 one-tenth wireless links of bluetooth module of bluetooth module 111 and intelligent wireless voice audio frequency apparatus 30.212 one-tenth wireless links of second wireless communication module of wireless communication module 112 and radio communication handle 20.
With the USB socket corresponding connection of the USB socket 122 in this terminal base 10 with external data equipment; Outside data equipment charges to battery 132 through the charging circuit 133 of 5V power supply in base 10 that USB socket 122 provides, and outside simultaneously data equipment is through second supplying power for input end of the D.C. regulated power supply 131 of 5V power supply in base 10 that USB socket 122 provides.If with charging socket 234 corresponding connections in charging plug 134 and the radio communication handle 20, also can charge to second battery 232 by second charging circuit 233 in radio communication handle 20, simultaneously to second supplying power for input end of second D.C. regulated power supply 231.With the data/charging socket 321 corresponding connections of the data/charging socket 121 in this terminal base 10 with intelligent wireless voice audio frequency apparatus 30, can this intelligent wireless voice audio frequency apparatus 30 be charged by the data equipment of outside, and swap data.
After the bluetooth module 311 of this intelligent wireless voice audio frequency apparatus is set up Radio Link with the bluetooth module 111 in this terminal base 10; No matter be that outside data equipment charges to intelligent wireless voice audio frequency apparatus 30 through base 10; Still do not make the other times that charge; In base 10 in the MCU main control unit under the control of MCU processor 102; (1) make signal selector 105 cut off the annexation of data terminal of data terminal and wireless communication module 112 of data terminal and the audio signal processing unit sound intermediate frequency codec 106 of bluetooth modules 111; The D.C. regulated power supply 131 of conversion control circuit cut off the electricity supply simultaneously accordingly to the audio codec 106 and wireless communication module 112 power supplies of bluetooth module 111, audio signal processing unit; The wireless link of the wireless link of the bluetooth module 311 of cut-out bluetooth module 111 and intelligent wireless voice audio frequency apparatus and the wireless communication module 212 of wireless communication module 112 and radio communication handle 20; At this moment; The 2nd MCU processor 202 control second D.C. regulated power supply 231 of radio communication handle 20 cuts off the power supply of two abnormal outputs to second audio codec 206 of second wireless communication module 212, second audio signal processing unit, and this terminal is in dormancy (soft-off) state of economize on electricity.Perhaps; (2) make signal selector 105 cut off the annexation of data terminal of data terminal and wireless communication module 112 of data terminal and the audio signal processing unit sound intermediate frequency codec 106 of bluetooth modules 111; The D.C. regulated power supply 131 of conversion control circuit cut off the electricity supply simultaneously accordingly to audio codec 106 power supplies of audio signal processing unit, keep power supply to bluetooth module 111 and wireless communication module 112.At this moment, the 2nd MCU processor 202 controls second D.C. regulated power supply 231 of radio communication handle 20 cuts off the power supply of abnormal output to second audio codec 206 of second audio signal processing unit, keeps to 212 power supplies of second wireless communication module.In the MCU main control unit in MCU processor 102 and the 2nd MCU main control unit under the Collaborative Control of the 2nd MCU processor 202; Bluetooth module 111 keeps the wireless communication module 212 of MIN wireless link and wireless communication module 112 and radio communication handle 20 to keep MIN wireless link with the bluetooth module 311 of intelligent wireless voice audio frequency apparatus, and this terminal is in the complete machine holding state of partial node electricity.Perhaps; (3) make signal selector 105 that the data terminal of bluetooth module 111 is connected the data terminal of audio signal processing unit sound intermediate frequency codec 106 and the data terminal of wireless communication module 112 simultaneously; Make simultaneously the audio codec 106 and wireless communication module 112 power supplies of the D.C. regulated power supply 131 of power source conversion control circuit accordingly to audio signal processing unit; 212 one-tenth wireless links of wireless communication module of wireless communication module 112 and radio communication handle 20, the user just can obtain the tinkle of bells of conversation (incoming call) at base 10 and radio communication handle 20.At this moment, this terminal is in maximum power supply output state.Perhaps; (4) can make signal selector 105 data terminal of bluetooth module 111 connected the data terminal of audio signal processing unit sound intermediate frequency codec 106; D.C. regulated power supply 131 in the power source conversion control circuit is supplied power to the audio codec 106 of audio signal processing unit, then can realize hand-free call.At this moment; The 2nd MCU processor 202 of radio communication handle 20 can be controlled second D.C. regulated power supply 231 and cut off the power supply of abnormal output to second audio codec 206 of second audio signal processing unit; Reservation is to 212 power supplies of second wireless communication module; Simultaneously in the MCU main control unit in MCU processor 102 and the 2nd MCU main control unit under the Collaborative Control of the 2nd MCU processor 202 wireless communication module of wireless communication module and radio communication handle keep MIN wireless link, the holding state of radio communication handle 20 entering more electricity savings at this moment.Perhaps; (5) make signal selector 105 data terminal of bluetooth module 111 connected the data terminal of wireless communication module 112; The D.C. regulated power supply 131 that makes simultaneously the power source conversion control circuit accordingly is to wireless communication module 112 power supplies; 212 one-tenth wireless links of wireless communication module of wireless communication module 112 and radio communication handle 20, the user just can use radio communication handle 20 in moving, make a phone call (being the handle talking state).At this moment, no longer to audio codec 106 power supplies of audio signal processing unit, base 10 can be saved the part electric energy to the D.C. regulated power supply 131 in the power source conversion control circuit.
The above is merely the utility model preferred embodiment, does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical scheme and the description of the utility model changes and modification, all should belong to the scope that the utility model is contained.
Claims (4)
1. wireless speech audio frequency apparatus terminal has MCU main control unit, power source conversion control circuit, audio signal processing unit, bluetooth module; It is characterized in that: it also has signal selector, wireless communication module, USB socket, data/charging socket and radio communication handle; The power line of USB socket is to power source conversion control circuit and data/charging socket power supply; The corresponding data wire that connects data/charging socket of the data wire of USB socket; The power source conversion control circuit is supplied power to the MCU main control unit; Three groups of control/state ends of MCU main control unit connect control/state end or the control/state end of wireless communication module or the control/state end of audio signal processing unit of bluetooth module respectively; Two groups of control output ends of MCU main control unit connect the control input end of signal selector or the control input end of power source conversion control circuit respectively; Three data terminals of signal selector connect data terminal or the data terminal of audio signal processing unit or the data terminal of wireless communication module of bluetooth module respectively, and the power source conversion control circuit is selectively to bluetooth module or signal selector or audio signal processing unit or powered; Wireless communication module becomes wireless link with the radio communication handle.
2. wireless speech audio frequency apparatus according to claim 1 terminal; It is characterized in that: be provided with battery, charging circuit and D.C. regulated power supply in the described power source conversion control circuit, D.C. regulated power supply has control input end, one tunnel normality output and four road abnormal outputs; The power line of described USB socket connects the input of charging circuit, and the output of charging circuit connects battery; Battery is to the supplying power for input end of D.C. regulated power supply; The normality output of D.C. regulated power supply is supplied power to described MCU main control unit; The control input end of D.C. regulated power supply connects the corresponding control output end of MCU main control unit, and four road abnormal outputs of D.C. regulated power supply are respectively to described bluetooth module, described signal selector, described audio signal processing unit and described powered.
3. wireless speech audio frequency apparatus according to claim 1 and 2 terminal is characterized in that: be provided with the 2nd MCU main control unit, second source conversion control circuit, second audio signal processing unit, second wireless communication module and charging socket in the described radio communication handle; The corresponding input that connects this second source conversion control circuit of the power line of this charging socket; This second source conversion control circuit is to the power supply of the 2nd MCU main control unit and selectively to this second wireless communication module or the power supply of this second audio signal processing unit; Two groups of control/state ends of the 2nd MCU main control unit connect the control/state end of this second wireless communication module or the control/state end of this second audio signal processing unit respectively, and the control output end of the 2nd MCU main control unit connects the control input end of this second source conversion control circuit; The data terminal of second audio signal processing unit connects the data terminal of second wireless communication module.
4. wireless speech audio frequency apparatus according to claim 3 terminal is characterized in that: the power line of said USB socket becomes dismountable corresponding connection with a corresponding connection of charging plug, this charging plug with described charging socket; Be provided with second battery, second charging circuit and second D.C. regulated power supply in the said second source conversion control circuit of said radio communication handle, this second D.C. regulated power supply has control input end, normality output and abnormal output; The power line of said charging socket connects the input of this second charging circuit, and the output of this second charging circuit connects this second battery; This second battery is to the supplying power for input end of this second D.C. regulated power supply; The normality output of this second D.C. regulated power supply is supplied power to described the 2nd MCU main control unit; The control input end of this second D.C. regulated power supply connects the control output end of described the 2nd MCU main control unit, and the abnormal output of this second D.C. regulated power supply is selectively to this second audio signal processing unit or described second powered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200250323U CN202424837U (en) | 2012-01-18 | 2012-01-18 | Wireless speech audio equipment terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200250323U CN202424837U (en) | 2012-01-18 | 2012-01-18 | Wireless speech audio equipment terminal |
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| CN202424837U true CN202424837U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200250323U Expired - Lifetime CN202424837U (en) | 2012-01-18 | 2012-01-18 | Wireless speech audio equipment terminal |
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| CN (1) | CN202424837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097812A (en) * | 2021-05-16 | 2021-07-09 | 成都仁峰教育信息技术有限公司 | Offline voice control power strip |
-
2012
- 2012-01-18 CN CN2012200250323U patent/CN202424837U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113097812A (en) * | 2021-05-16 | 2021-07-09 | 成都仁峰教育信息技术有限公司 | Offline voice control power strip |
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Granted publication date: 20120905 |