CN204258818U - Utilize the device of loud speaker communication - Google Patents

Utilize the device of loud speaker communication Download PDF

Info

Publication number
CN204258818U
CN204258818U CN201420172583.1U CN201420172583U CN204258818U CN 204258818 U CN204258818 U CN 204258818U CN 201420172583 U CN201420172583 U CN 201420172583U CN 204258818 U CN204258818 U CN 204258818U
Authority
CN
China
Prior art keywords
sound wave
data
loud speaker
data sound
communication
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.)
Expired - Lifetime
Application number
CN201420172583.1U
Other languages
Chinese (zh)
Inventor
郑豪裕
李亚鹏
王腾赐
张琦栋
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.)
ANGUO INTERNATIONAL SCI-TECH Co Ltd
Original Assignee
ANGUO INTERNATIONAL SCI-TECH 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 ANGUO INTERNATIONAL SCI-TECH Co Ltd filed Critical ANGUO INTERNATIONAL SCI-TECH Co Ltd
Priority to CN201420172583.1U priority Critical patent/CN204258818U/en
Application granted granted Critical
Publication of CN204258818U publication Critical patent/CN204258818U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

The utility model is a kind of device utilizing loud speaker communication, it comprises a first device and one second device, this first device have one first process module and with one first loud speaker of its electric connection and one second loud speaker, this second device has one second process module and the microphone with its electric connection, this first device changes a coded data into one first data sound wave and one second data sound wave through this first process module, and play this first data sound wave and this second data sound wave by this first loud speaker and this second loud speaker simultaneously, this second device is through this first data sound wave of this microphones and this second data sound wave, and by this second process module this first data sound wave of identification and this second data sound wave to obtain this coded data by its combination.

Description

Utilize the device of loud speaker communication
Technical field
The utility model relates to the device utilizing loud speaker communication, refers in particular to device that a kind of utilization has a microphone and receives the plural sound wave that another device with plural loud speaker plays, and obtain coded data person by the combination correspondence of sound wave.
Background technology
The development of mechanics of communication, allows the people being in strange land can encourage interchange of views and emotion, and the appearance of wireless communication technique, more breach the restriction of the construction of line in wire communication technology, make communication become more freely convenient.In fact, wireless communication technique is the earliest only late than wire communication the earliest 35 years, after Italy in 1860 novel Mu Qi Novel telephone, within 1895, Italian engineer's Marconi develops the method for transmitting/receiving wireless telegram, within 1901, radio signals are more successfully crossed the Atlantic Ocean by Marconi, geographic restrictions has been broken in remote-wireless communication, the crowd connected all over the world.
Through a century, internet and various telecommunication technology full-fledged gradually, in recent years, hard-core technology incorporates personal lifestyle, the near field communication (NFC) that various electronic product is connected is become the focus of concern centered by user, near field communication (NFC) includes bluetooth (Bluetooth), IEEE802.11, purple honeybee (ZigBee), near-field communication (near fieldcommunication, NFC), ultra broadband (ultrawideband, UWB) etc., respectively there are its pluses and minuses, as: bluetooth has lower powered characteristic, and the transmission speed of 700Kbps and the transmission range of 10 meters can be reached, but the problem of signal interference is easily there is in the frequency range of 2.4GHz, IEEE802.11 can provide the transmission speed larger than bluetooth and transmission range, as in open space, IEEE802.11a can reach the through-put power of about 24 ~ 35Mbps and the transmission range of 50 meters, IEEE802.11b then can reach the through-put power of about 5.5Mbps and the transmission range of 100 meters, but consumed power is higher, ZigBee then has low power consuming and the flexible advantage of working frequency range, but along with transmission range increase time, the problem that transmission speed and data integrity decline can be there is, NFC can reach the power consumption lower than bluetooth, and the problem of signal interference is also fewer, but maximum transfer speed only has 424Kbps, and transmission range is less than 20 centimeters, UWB deserves to be called the rising star of near radio transmission, the transmission rate of 100 ~ 500Mbps can be provided under the transmission range of 5 ~ 10 meters, but UWB technology, still in development, even its production cost cannot force down, makes to utilize the equipment price of UWB technology more not human-oriented at present.
In view of this, the utility model utilizes loud speaker with low cost to play the sonic expression signal of sound wave or ultrasonic waves frequency range, utilizes microphones sound wave and understands signal, and can carry out the close range wireless communication of low production cost.In addition, because the utility model adopts with plural loud speaker in the sound wave playing plural different frequency respectively simultaneously, and the mode of various signal is showed by the combination of sound wave, compared with the sound wave communication device utilizing single loud speaker, the signal of less frequency performance equal number can be utilized, frequency is comparatively easy to distinguish and reduces the problem of signal interference, or because sound wave combination can be play simultaneously and shorten the time of signal transmission.
Utility model content
Main purpose of the present utility model, be to provide a kind of device utilizing loud speaker communication, be used in a device the plural loud speaker arranged and play plural sound wave simultaneously, by the combinational expression coded data of plural sound wave, another device with microphone can be made to receive sound wave and understand this coded data according to its combination, and the effect utilizing loud speaker communication can be reached, the delivery time that simultaneously can shorten sound signal is disturbed with reduction signal.
In order to reach above-mentioned censured object and effect, the utility model discloses a kind of device utilizing loud speaker communication, comprises:
One first device, comprises:
One first process module, changes the combination that a coded data is one first data sound wave and one second data sound wave;
One first loud speaker, is electrically connected at this first process module, and plays this first data sound wave; And
One second loud speaker, is electrically connected at this first process module, and plays this second data sound wave; And
One second device, comprises:
One microphone, receives this first data sound wave and this second data sound wave; And
One second process module, is electrically connected at this microphone, and identifies this first data sound wave and this second data sound wave.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this first data sound wave or this second data sound wave are selected from five kinds of frequency of sound wave, and its combination is in order to represent hexadecimal numeral.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this first loud speaker play an initial sound wave further before this first data sound wave of broadcasting.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this first loud speaker terminates sound wave in the rear broadcasting one of playing this first data sound wave further.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this first loud speaker and this second loud speaker are in playing this first data sound wave and this second data sound wave respectively simultaneously.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this second process module comprises an application program, and this application program obtains this coded data according to the combination of this first data sound wave and this second data sound wave.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this second device comprises a line unit further, this line unit is electrically connected at this second process modules in parallel machine to the 3rd device, and the 3rd device obtains this coded data according to the combination of this first data sound wave and this second data sound wave.
Described in the utility modelly utilize in the device of loud speaker communication, wherein this second device comprises a luminescence unit further, and this first device comprises a photoinduction unit further, and this luminescence unit sends a smooth signal, and this photoinduction unit receives this light signal.
Implement the beneficial effects of the utility model: the device utilizing loud speaker communication of the present utility model, utilize the while of the first loud speaker and the second loud speaker that are arranged on first device and also play the first data sound wave and the second data sound wave respectively, the combination of the first data sound wave and the second data sound wave can in order to express coded data, after the microphones first data sound wave being arranged on the second device and the second data sound wave, this coded data can be understood according to the combination of the first data sound wave and the second data sound wave, to reach the effect utilizing loud speaker communication between first device and the second device.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Figure 1A: it is the assembly annexation schematic diagram of the utility model first embodiment;
Figure 1B: it is the flow chart of steps of the utility model first embodiment;
Fig. 1 C: it is that the frequency of sound wave of the utility model first embodiment contrasts with signal and schemes;
Fig. 2 A: it is the flow chart of steps of the utility model second embodiment;
Fig. 2 B: it is the sound wave broadcasting schematic diagram of the utility model second embodiment;
Fig. 3: it is the assembly annexation schematic diagram of the utility model the 3rd embodiment;
Fig. 4: it is the assembly annexation schematic diagram of the utility model the 4th embodiment;
Fig. 5: it is the assembly annexation schematic diagram of the utility model the 5th embodiment; And
Fig. 6: it is the assembly annexation schematic diagram of the utility model the 6th embodiment.
[figure number is to as directed]
1 first device
10 first process modules
12 first loud speakers
1200 initial sound waves
120 first data sound waves
1202 terminate sound wave
14 second loud speakers
140 second data sound waves
16 second microphones
18 photoinduction unit
2 second devices
20 second process modules
22 first microphones
24 line unit
26 three loudspeakers
260 the 3rd data sound waves
27 the 4th loud speakers
270 the 4th data sound waves
28 luminescence units
280 smooth signals
3 the 3rd devices
Embodiment
For making to have a better understanding and awareness architectural feature of the present utility model and effect of reaching, coordinating detailed description in order to preferred embodiment and accompanying drawing, being described as follows:
The utility model discloses a kind of device utilizing loud speaker communication, its characteristic is: the utility model is used in a device the plural loud speaker arranged and plays plural sound wave simultaneously, with the combinational expression coded data by sound wave, because the sound wave kind used is less, the interference between the difficulty of sound wave identification and sound signal can be reduced, again owing to playing plural sound wave simultaneously, the delivery time of sound signal can be shortened, this coded data can be understood according to the combination of sound wave after there is another device reception sound wave of microphone, and reach the effect utilizing loud speaker communication.
First see also Figure 1A, Figure 1B and Fig. 1 C, it is the assembly annexation schematic diagram of the utility model first embodiment, flow chart of steps and frequency of sound wave contrast with signal and scheme; As shown in Figure 1A, the device of loud speaker communication that utilizes of the present utility model at least comprises first device 1 and one second device 2, this first device 1 comprises one first process module 10,1 first loud speaker 12 and one second loud speaker 14, this first loud speaker 12 and this second loud speaker 14 are electrically connected at this respectively and first process module 10, this second device 2 comprises one second process module 20 and one first microphone 22, and this first microphone 22 is electrically connected at this second process module 20.
Separately, one first data sound wave 120 is play by this first loud speaker 12 and is received by this first microphone 22, and one second data sound wave 140 is play by this second loud speaker 14 and received by this first microphone 22.
As shown in Figure 1B, the device of loud speaker communication that utilizes of the present utility model can utilize following step to carry out communication:
The first data sound wave play by step S20: the first loud speaker, and the second data sound wave play by the second loud speaker simultaneously;
Step S30: microphones first data sound wave and the second data sound wave; And
Step S40: the combination according to the first data sound wave and the second data sound wave obtains first coding data.
In step S20, while this first data sound wave 120 play by this first loud speaker 12, this the second data sound wave 140 play by this second loud speaker 14, this the first data sound wave 120 can in order to express a first coding data in electronic data with the combination of this second data sound wave 140, as shown in Figure 1 C, can by selecting different frequencies in five kinds of frequency F1, F2, F3, F4, F5 as this first data sound wave 120 and this second data sound wave 140 in the present embodiment, and 16 kinds of combinations are made in the change that can pass through amplitude to express the numerals such as hexadecimal 0 ~ F, such as: when this first loud speaker 12 neither plays sound wave (being equivalent to play the sound wave that amplitude is zero) with this second loud speaker 14, express hexadecimal 0; Playing frequency when this first loud speaker 12 or this second loud speaker 14 one is the sound wave of F1 to F5, and when another does not play sound wave, expresses hexadecimal 1 to 5 numeral such as grade respectively; All the other these the first data sound waves 120 being selected from frequency F1 to F5 refer to Fig. 1 C with the combination of this second data sound wave 140 and the hexadecimal digit of representative.
There is m loud speaker and m data sound wave can be play simultaneously, when data sound wave can be selected from n kind frequency, can form individual combination, a n+1 representative wherein loud speaker can play n kind frequency and an amplitude is the sound wave of zero, and+1 represents all loud speakers all plays the situation that amplitude is the sound wave of zero.
In step S30, this first microphone 22 receives this first data sound wave 120 and this second data sound wave 140, in step S40, this the second process module 20 can obtain this first coding data according to this first data sound wave 120 with (frequency and amplitude) combination of this second data sound wave 140, and its conversion as shown in Figure 1 C.
Through the setting of said modules and the enforcement of step S20 to step S40, this the first data sound wave 120 that this first device 1 is play through this first loud speaker 12 and this second loud speaker 14 simultaneously respectively can be sent to this second device 2 with this second data sound wave 140 by the device of loud speaker communication that utilizes of the present utility model, received by this first microphone 22 of this second device 2 and comply with this first data sound wave 120 and the combination of this second data sound wave 140 and obtain a first coding data representated by it, the effect of electronic data to this second device 2 is transmitted by this first device 1 to reach.
Consult Figure 1B again, between step S30 and step S40, step S32 can be comprised further:
Step S32: the second process module identification first data sound wave and the second data sound wave.
In step S32, the amplitude of this first data sound wave 120 of electric signal identification that this second process module 20 receives this first data sound wave 120 and this second data sound wave 140 according to this first microphone 22 and produces and this second data sound wave 140(, frequency or waveform), one combine this first coding data represented to obtain this by (amplitude, frequency or waveform) combination of this first data sound wave 120 and this second data sound wave 140 in step S40.Be utilize the sound wave of different frequency to arrange in pairs or groups amplitude difference to show various signal in the present embodiment, electronic data is converted to sound wave by the technology namely through frequency and amplitude modulation.
Consult Figure 1B again, before step S20, step S10 can be comprised further:
Step S10: the first processing unit changes the combination that first coding data is the first data sound wave and the second data sound wave.
In step S10, this first processing unit 10 can by a first coding data in electronic data according to being converted to the combination of this first data sound wave 120 with this second data sound wave 140 shown in Fig. 1 C, to play this first data sound wave 120 and this second data sound wave 140 respectively through this first loud speaker 12 and this second loud speaker 14 in step S20 simultaneously.
Figure 1A please be coordinated to consult Fig. 2 A and Fig. 2 B, and it is flow chart of steps and the sound wave broadcasting schematic diagram of the utility model second embodiment; Utilize the device of loud speaker communication identical with the first embodiment in second embodiment, please refer to Figure 1A, and utilize each step as shown in Figure 2 A to carry out communication:
Step S10: the first processing unit changes the combination that first coding data is the first data sound wave and the second data sound wave;
Step S200: the first loud speaker sends initial sound wave;
The first data sound wave play by step S20: the first loud speaker, and the second data sound wave play by the second loud speaker simultaneously;
Step S201: the first loud speaker sends end sound wave;
Step S31: the initial sound wave of microphones, the first data sound wave, the second data sound wave and end sound wave;
Step S32: the second process module identification first data sound wave and the second data sound wave; And
Step S40: the combination according to the first data sound wave and the second data sound wave obtains first coding data.
Step S10 is identical with the first embodiment, by this first processing unit 10, a first coding data in electronic data is converted to the combination of this first data sound wave 120 and this second data sound wave 140.
The characteristic of the present embodiment is: add step S200 and step S201 respectively in the front and back of step S20, and as shown in Figure 2 B, make this first loud speaker 12 sequentially play an initial sound wave 1200, this first data sound wave 120 and one terminates sound wave 1202, and while this first loud speaker 12 is according to this first data sound wave 120 of broadcasting, make this second loud speaker 14 play this second data sound wave 140.
In step S31, this initial sound wave 1200 of this microphone 2 received in sequence, this first data sound wave 120 terminate sound wave 1202 with this second data sound wave 140 and this.
In step S32, this second process module 20 can receive in this initial sound wave 1200, this first data sound wave 120 and this second data sound wave 140 and this electric signal terminating sound wave 1202 and produce according to this first microphone 22 and identify this first data sound wave 120 and this second data sound wave 140.
Step S40 is identical with the first embodiment, can obtain this first coding data by this second process module 20 according to this first data sound wave 120 with the combination of this second data sound wave 140, to reach by this by this first device 1 to the electronic data transfer of this second device 2.
Through step S200 and the step S201 of extra enforcement, this initial sound wave 1200 can be added before and after this first data sound wave 120 representing this first coding data and terminate sound wave 1202 with this, add this initial sound wave 1200 to terminate sound wave 1202 with this and can strengthen this and second process the effect that module 20 identifies this first data sound wave 120 and this second data sound wave 140, and the interference that noise causes can be reduced.
Figure 1B or Fig. 2 A please be coordinated to consult Fig. 3, and it is the assembly annexation schematic diagram of the utility model the 3rd embodiment; As shown in the figure, the difference of the device of loud speaker communication and the first embodiment that utilizes of the present embodiment is: in the present embodiment, this second processes module 20 and comprise an application program 200 further, in the step S40 shown in Figure 1B or Fig. 2 A, this application program 200 can obtain this first coding data according to this first data sound wave 120 with the combination of this second data sound wave 140.
Through the setting of this application program 200, what this second process module 20 can change this first data sound wave 120 and this second data sound wave 140 via this application program 200 is combined as this first coding data, to obtain a wherein first coding data of the electronic data transmitted by this first device 1.
Figure 1B or Fig. 2 A please be coordinated to consult Fig. 4, and it is the assembly annexation schematic diagram of the utility model the 4th embodiment; As shown in the figure, the difference of the device of loud speaker communication and the first embodiment that utilizes of the present embodiment is: in the present embodiment, this second device 2 comprises a line unit 24 further, this line unit 24 is electrically connected at this second process module 20, and can be online to one the 3rd device 3.
This second process module 20 can pass through this line unit 24 and this first data sound wave 120 is sent to the 3rd device 3 with the recognition result of this second data sound wave 140, and in the step S40 shown in Figure 1B or Fig. 2 A, 3rd device 3 can obtain this first coding data according to this first data sound wave 120 and the combination of this second data sound wave 140, and the transformation result that can return this first coding data is to this second process module 20.
Through the setting of this line unit 24 with the 3rd device 3, this second process module 20 utilizes high in the clouds (the 3rd device) to process and obtains with the combination of this second data sound wave 140 this first coding data transmitted by this first device 1 by this first data sound wave 120.
Figure 1A please be coordinated to consult Fig. 5, and it is the assembly annexation schematic diagram of the utility model the 5th embodiment; As shown in the figure, the difference of the device of loud speaker communication and the first embodiment that utilizes of the present embodiment is: in the present embodiment, this second device 2 comprises three loudspeakers 26 and one the 4th loud speaker 27 further, and this first device 1 comprises a second microphone 16 further, this three loudspeakers 26 and the 4th loud speaker 27 are electrically connected at this respectively and second processs module 28, and this second microphone 16 is electrically connected at this and first processes module 10.
When for transmitting one second coded data to this first device 1 by this second device 2, can pass through this second process module 20 and one second coded data is converted to one the 3rd data sound wave 260 and one the 4th data sound wave 270, and utilize this three loudspeakers 26 to play this transmission the 3rd data sound wave 260 and the 4th data sound wave 270 with the 4th loud speaker 27 respectively simultaneously, after this second microphone 16 receives the 3rd data sound wave 260 and the 4th data sound wave 270, by this first process module 10, the 3rd data sound wave 260 can be converted to this second coded data with the 4th data sound wave 270.
Through additionally arranging this three loudspeakers 26, the 4th loud speaker 27 and this second microphone 16, the mode of sound wave can be utilized to transmit one second coded data to this first device 1 by this second device 2, and make the function utilizing the device of loud speaker communication to have both-way communication of the present utility model.
Figure 1A please be coordinated to consult Fig. 6, and it is the assembly annexation schematic diagram of the utility model the 6th embodiment; As shown in the figure, the difference of the device of loud speaker communication and the first embodiment that utilizes of the present embodiment is: in the present embodiment, this second device 2 comprises a luminescence unit 28 further, and this first device 1 comprises a photoinduction unit 18 further, this luminescence unit 28 is electrically connected at this second process module 28, and this photoinduction unit 18 is electrically connected at this first process module 10.
When for transmitting one second coded data to this first device 1 by this second device 2, can pass through this second process module 20 and this second coded data is converted to a smooth signal, and utilize this luminescence unit 28 to send this light signal 280, after this photoinduction unit 18 receives this light signal 280, by this first process module 10, this light signal 280 can be converted to this second coded data.
Through additionally arranging this luminescence unit 28 and this photoinduction unit 18, the mode of light signal can be utilized to transmit this second coded data to this first device 1 by this second device 2, and make the function utilizing the device of loud speaker communication can have both-way communication of the present utility model.
In sum, utilize the device of loud speaker communication to can pass through the plural loud speaker arranged in a device and put complex data sound wave respectively at same time program request, and those data sound waves of the microphones utilizing another device to arrange, to obtain the coded data of the combinational expression of data sound wave.The utility model can be applicable to various electronic installation and its peripheral device, such as can with the electronics bracelet of intelligent mobile phone or Android television communication, utilize electronics bracelet to respond to collect every physiology or environmental information and be sent to intelligent mobile phone, the object of physiology or environmental monitoring can be applied to, or utilize electronics bracelet respond to user's action and be sent to intelligent mobile phone or Android TV, remote operation intelligent mobile phone can be applied to take pictures, stir the page or make Android TV turntable, the various functions such as adjustment volume, and the healthy bracelet utilizing the utility model technology can be developed, the products such as auto heterodyne bracelet.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to the utility model claims.

Claims (7)

1. utilize a device for loud speaker communication, it is characterized in that, comprise:
One first device, comprises:
One first process module, changes the combination that a coded data is one first data sound wave and one second data sound wave;
One first loud speaker, is electrically connected at this first process module, and plays this first data sound wave; And
One second loud speaker, is electrically connected at this first process module, and plays this second data sound wave; And
One second device, comprises:
One microphone, receives this first data sound wave and this second data sound wave; And
One second process module, is electrically connected at this microphone, and identifies this first data sound wave and this second data sound wave.
2. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this first data sound wave or this second data sound wave are selected from five kinds of frequency of sound wave, and its combination is in order to represent hexadecimal numeral.
3. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this first loud speaker play an initial sound wave further before this first data sound wave of broadcasting.
4. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this first loud speaker plays an end sound wave further after this first data sound wave of broadcasting.
5. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this first loud speaker and this second loud speaker are in playing this first data sound wave and this second data sound wave respectively simultaneously.
6. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this second device comprises a line unit further, this line unit is electrically connected at this second process modules in parallel machine to the 3rd device, and the 3rd device obtains this coded data according to the combination of this first data sound wave and this second data sound wave.
7. utilize the device of loud speaker communication as claimed in claim 1, it is characterized in that, wherein this second device comprises a luminescence unit further, and this first device comprises a photoinduction unit further, this luminescence unit sends a smooth signal, and this photoinduction unit receives this light signal.
CN201420172583.1U 2014-04-10 2014-04-10 Utilize the device of loud speaker communication Expired - Lifetime CN204258818U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420172583.1U CN204258818U (en) 2014-04-10 2014-04-10 Utilize the device of loud speaker communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420172583.1U CN204258818U (en) 2014-04-10 2014-04-10 Utilize the device of loud speaker communication

Publications (1)

Publication Number Publication Date
CN204258818U true CN204258818U (en) 2015-04-08

Family

ID=52963079

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420172583.1U Expired - Lifetime CN204258818U (en) 2014-04-10 2014-04-10 Utilize the device of loud speaker communication

Country Status (1)

Country Link
CN (1) CN204258818U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104980229A (en) * 2014-04-10 2015-10-14 安国国际科技股份有限公司 Method and device for communication through loudspeakers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104980229A (en) * 2014-04-10 2015-10-14 安国国际科技股份有限公司 Method and device for communication through loudspeakers

Similar Documents

Publication Publication Date Title
CN203181165U (en) Wireless microphone and household karaoke system
CN106209130B (en) A kind of wireless headset and the method using wireless headset output audio data
CN102263576B (en) Wireless information transmitting method and method realizing device
CN204090124U (en) Based on the intelligent handheld device audio amplifier control system of bluetooth communication
CN104980229A (en) Method and device for communication through loudspeakers
CN203193861U (en) Wireless mobile terminal karaoke reverberation converter
CN213906675U (en) Portable wireless bluetooth recording equipment
CN204258818U (en) Utilize the device of loud speaker communication
CN109754824A (en) A kind of audio file play method and system, tone playing equipment and luminaire
CN204481999U (en) A kind of intelligent earphone
CN202444603U (en) 2.4G S/PDIF (Sony/Philips Digital Interface) wireless earphone device of set-top box
CN201153260Y (en) Two-in-one USB disk wireless net playing card apparatus
CN203278826U (en) Audio wireless transmission system
CN203368660U (en) Interactive digital television system
CN207251858U (en) A kind of UHF Multifunctional wireless microphones
CN206672626U (en) A kind of special high-fidelity Wireless pickup of musical instrument
CN201966912U (en) 2.4G wireless communication system
CN204029075U (en) A kind of novel Bluetooth doorbell
CN203166894U (en) Signal conversion apparatus and system
CN204242573U (en) A kind of internet karaoke device being arranged on automotive interior
CN214045620U (en) High definition audio transmission controlling means
CN201957210U (en) Receiver for wireless Bluetooth microphone
CN104023279A (en) Method of realizing receiving and sending of analog signals in digital interphone and device
CN203299832U (en) Multifunctional mobile business terminal partner based on bluetooth
CN201515369U (en) Universal synchronous infrared voice transmitting device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20150408

CX01 Expiry of patent term