CN211860441U - Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes - Google Patents

Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes Download PDF

Info

Publication number
CN211860441U
CN211860441U CN202020518065.6U CN202020518065U CN211860441U CN 211860441 U CN211860441 U CN 211860441U CN 202020518065 U CN202020518065 U CN 202020518065U CN 211860441 U CN211860441 U CN 211860441U
Authority
CN
China
Prior art keywords
sound source
bluetooth
sound
control part
effect processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020518065.6U
Other languages
Chinese (zh)
Inventor
杨保国
苏雨庭
张玲
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.)
Shenzhen Wall Sound Technology Co ltd
Original Assignee
Shenzhen Wall Sound Technology 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 Shenzhen Wall Sound Technology Co ltd filed Critical Shenzhen Wall Sound Technology Co ltd
Priority to CN202020518065.6U priority Critical patent/CN211860441U/en
Application granted granted Critical
Publication of CN211860441U publication Critical patent/CN211860441U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Circuit For Audible Band Transducer (AREA)

Abstract

The utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system, a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system includes: the first Bluetooth sound box receives sound source signals and sends the sound source signals after sound effect processing to the second Bluetooth sound box; the first Bluetooth sound box stores the sound source signal, controls the delay preset time through the first storage delay control part, and outputs the sound source signal after relevant processing. And in the second Bluetooth sound box, the sound source signal is subjected to sound effect processing and then synchronously output with the first Bluetooth sound box. The utility model discloses support multi-mode broadcast, satisfy the diversified play mode's in market demand, user experience is high.

Description

Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes
Technical Field
The utility model relates to a bluetooth speaker control technical field especially relates to a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system.
Background
Nowadays, various electronic devices are being developed to be wireless and diversified. The existing double-machine combined broadcast box group in the market has two kinds: the two loudspeaker boxes need to be connected by an audio cable to transmit audio signals, the placement positions of the loudspeaker boxes are limited by the length of the audio cable, the loudspeaker boxes are troublesome to use and do not conform to the technical trend of wireless development of all devices; and secondly, a dual-computer wireless broadcasting audio box group supporting a Bluetooth playing mode. The dual-computer wireless simulcast loudspeaker box group has the problem of single play mode, and cannot meet the requirement of diversified play modes in the market. Therefore, the invention of a dual-computer wireless bluetooth simulcast speaker system supporting multiple play modes becomes a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system is provided.
The utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system, including first bluetooth speaker and second bluetooth speaker, first bluetooth speaker with realize wireless communication between the second bluetooth speaker and connect, include:
the first Bluetooth sound box comprises a first control part, a first storage delay control part, a first transmitting part, a first sound effect processing part and a first sound source expansion input part; the first storage delay control part, the first transmitting part, the first sound effect processing part and the first sound source expansion input part are respectively electrically connected with the first control part, and the first sound effect processing part is electrically connected with the first storage delay control part; the first sound source extension input part is used for receiving sound source signals, the first control part is used for decoding the sound source signals, and the first transmitting part is used for collecting the decoded sound source signals and transmitting the sound source signals to the second Bluetooth loudspeaker box; the first storage delay control part is used for storing the decoded sound source signal, controlling the sound source signal to be delayed for preset time and then sending the sound source signal to the first sound effect processing part, and the first sound effect processing part is used for carrying out sound effect processing on the sound source signal;
the second Bluetooth sound box comprises a second control part, a second storage delay control part, a first receiving part and a second sound effect processing part; the second storage delay control part, the first receiving part and the second sound effect processing part are respectively electrically connected with the second control part; the first receiving part is used for receiving the sound source signal and transmitting the sound source signal to the second control part, and the second storage delay control part stops working; the second sound effect processing part is used for carrying out sound effect processing on the sound source signals.
Preferably, the first bluetooth speaker includes a second receiving portion; the second receiving portion is electrically connected with the second control portion.
Preferably, the second bluetooth speaker further comprises a second sound source extension input part and a second transmitting part; the second sound source extension input part and the second transmitting part are respectively electrically connected with the second control part.
Preferably, the first sound source extension input part comprises a USB input unit, a TF input unit, and an AUX input unit; the USB input unit, the TF input unit and the AUX input unit are electrically connected with the first control part respectively.
Preferably, the first extension portion further includes an FM input unit; the FM input unit is electrically connected to the first control portion.
Preferably, the second source extension input section has the same structure as the first source extension input section.
Preferably, the first sound effect processing part comprises a power amplifying unit, a loudspeaker driving unit and a loudspeaker; the power amplification unit is electrically connected with the first storage delay control part, the loudspeaker driving unit is electrically connected with the power amplification unit, and the loudspeaker is electrically connected with the loudspeaker driving unit.
Preferably, the sound source signal includes a sound source signal from a bluetooth device or a sound source signal of the first sound source extension input section.
The utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system has following beneficial effect, the utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system includes first bluetooth speaker and second bluetooth speaker, first bluetooth speaker with realize wireless communication between the second bluetooth speaker and connect. The first Bluetooth sound box comprises a first control part, a first storage delay control part, a first transmitting part, a first sound effect processing part and a first sound source expansion input part; the first storage delay control part, the first transmitting part, the first sound effect processing part and the first sound source expansion input part are respectively electrically connected with the first control part, and the first sound effect processing part is electrically connected with the first storage delay control part; the first sound source extension input part is used for receiving sound source signals, the first control part is used for decoding the sound source signals, and the first transmitting part is used for collecting the decoded sound source signals and transmitting the sound source signals to the second Bluetooth loudspeaker box; first storage time delay control unit is used for the storage sound source signal after decoding to control send after sound source signal time delay preset time for first audio processing unit, first audio processing unit is used for right sound source signal carry on after the audio processing with second bluetooth speaker carries out synchronous output.
The second Bluetooth sound box comprises a second control part, a second storage delay control part, a first receiving part and a second sound effect processing part; the second storage delay control part, the first receiving part and the second sound effect processing part are respectively electrically connected with the second control part; the first receiving part is used for receiving the sound source signal and transmitting the sound source signal to the second control part, and the second storage delay control part stops working; the second sound effect processing part is used for carrying out sound effect processing on the sound source signals and then outputting the sound source signals and the first Bluetooth sound box synchronously. In the utility model, the first bluetooth sound box and the second bluetooth sound box can acquire the input sound source of any bluetooth device, so that the system can perform synchronous simulcast; in addition, first sound source extension input section is right the input sound source of first bluetooth speaker has carried out the extension, and through first storage delay control part is right the broadcast time of input sound source carries out delay control, thereby has realized second bluetooth speaker reaches the synchronous simulcast of first bluetooth speaker has realized the multi-mode broadcast, satisfies the demand of the diversified play mode in market, promotes user experience.
Drawings
Fig. 1 is a schematic block diagram of a dual-computer wireless bluetooth simulcast sound box system supporting multiple play modes according to a preferred embodiment of the present invention;
fig. 2 is a schematic block diagram of a dual-computer wireless bluetooth simulcast speaker system supporting multiple play modes according to another preferred embodiment of the present invention;
fig. 3 is a schematic diagram of the bluetooth device of the dual-computer wireless bluetooth simulcast speaker system supporting multiple play modes according to the preferred embodiment of the present invention as a sound source input;
fig. 4 is a schematic diagram of the preferred embodiment of the present invention, which is used for the extension sound source part of the dual-computer wireless bluetooth simulcast sound box system supporting multiple play modes as the sound source input.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples. It should be noted that, if there is no conflict, the embodiments and various features in the embodiments of the present invention may be combined with each other, and all are within the scope of the present invention.
Example one
Referring to fig. 1, the utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system, including first bluetooth speaker 1 and second bluetooth speaker 2, first bluetooth speaker 1 with realize wireless communication between second bluetooth speaker 2 and be connected. In this embodiment, the first bluetooth speaker serves as a host of the second bluetooth speaker. The first bluetooth sound box 1 comprises a first control part 11, a first storage delay control part 12, a first transmitting part 13, a first sound effect processing part 15 and a first sound source expansion input part 16; the first storage delay control part 12, the first transmitting part 13, the first audio processing part 15 and the first audio source extension input part 16 are electrically connected to the first control part 11, respectively, and the first audio processing part 15 is electrically connected to the first storage delay control part 12; the first sound source extension input part 16 receives sound source signals and decodes the sound source signals through the first control part 11, and the first transmitting part 13 collects the decoded sound source signals and transmits the sound source signals to the second bluetooth speaker 2; first storage time delay control section 12 storage sound source signal after decoding to control sound source signal delay after the preset time send for first audio processing part 15, first audio processing part 15 is right sound source signal carry out the audio processing after with second bluetooth speaker 2 carries out synchronous output.
The second Bluetooth sound box is used as a slave machine of the first Bluetooth sound box. The second bluetooth speaker 2 comprises a second control part 21, a second storage delay control part 22, a first receiving part 24 and a second sound effect processing part 25; the second storage delay control part 22, the first receiving part 24 and the second sound effect processing part 25 are electrically connected with the second control part 21 respectively; the first receiving part 24 receives the sound source signal and transmits the sound source signal to the second control part 21, and the second storage delay control part 22 stops working; the second sound effect processing part 25 processes the sound source signal and then outputs the sound source signal synchronously with the first bluetooth sound box 1. The utility model discloses in, first bluetooth speaker reaches second bluetooth speaker can acquire arbitrary bluetooth device's input sound source for the system carries out the simulcast in step. First sound source extension input section 15 is right the input sound source of first bluetooth speaker 1 has carried out the extension, and is right the broadcast time of input sound source carries out time delay control, thereby has realized second bluetooth speaker 2 reaches the synchronous simulcast of first bluetooth speaker 1 has realized multi-mode broadcast, satisfies the demand of the diversified play mode in market, promotes user experience.
Preferably, referring to fig. 2 and fig. 3, the first bluetooth speaker includes a second receiving portion 14. In this embodiment, the first bluetooth speaker 1 and the second bluetooth speaker 2 can acquire an input sound source of any bluetooth device for output. The first control part 11 collects the sound source signal, and the first control part 11 decodes the sound source signal and transmits the decoded sound source signal to the second bluetooth speaker 2 through the first transmitting part 13 for output. It can be understood that when the sound source signal comes from the bluetooth device, the sound box system has no delay and is broadcast synchronously. When the input sound source signal comes from the first sound source extension input part 16, the first sound source extension input part 16 receives the sound source signal and decodes the sound source signal through the first control part 11, and the first transmitting part 13 collects the decoded sound source signal and transmits the sound source signal to the second bluetooth speaker 2; the first storage delay control part 12 stores the decoded sound source signal, and controls the sound source signal to be transmitted to the first sound effect processing part 15 after being delayed for presetting. The first storage delay control part 22 controls the sound source signal to be delayed for a preset time of 200ms-500 ms. Since the second receiving part 14 is turned off when the input sound source signal comes from the first sound source extension input part 16, the first control part 11 collects and decodes the sound source signal of the first sound source extension input part 16, and the first transmitting part 13 collects and transmits the decoded sound source signal to the first audio processing part 16 and then to the second bluetooth speaker 2. Therefore, it takes 200ms to 500ms from the decoding of the first control section 11 to the transmission of the sound source signal to the second bluetooth speaker 2, which causes the playing time of the first bluetooth speaker 1 and the playing time of the second bluetooth speaker 2 to be asynchronous. Therefore, after the sound source signal is sent from the first bluetooth sound box 1 to the second bluetooth sound box 2, the first storage delay control part 22 stores the sound source signal, and controls the sound source signal of the first bluetooth sound box 1 to be delayed by 200ms-500ms synchronously, and then the sound source signal is sent to the first sound effect processing part to be played synchronously with the second bluetooth sound box. Therefore, the utility model discloses the effectual asynchronous problem of broadcast time of having solved duplex wireless bluetooth simulcast audio amplifier system. It is understood that, in this embodiment, the preset time is determined by the time consumed when the transmitting portion of the host bluetooth speaker collects and transmits the sound source signal, and the preset time is not specifically limited herein.
Preferably, the second bluetooth speaker 2 further includes a second sound source extension input part 26 and a second transmitting part 23; the second audio extension input part 26 and the second transmitting part 23 are electrically connected to the second control part 21, respectively. In another preferred embodiment, the second bluetooth speaker 2 serves as a master, and the first bluetooth speaker 1 serves as a slave. The second sound source extension input part 26 receives sound source signals and decodes the sound source signals through the second control part 21, and the second transmitting part 23 collects the decoded sound source signals and transmits the sound source signals to the first bluetooth speaker 1; the second storage time delay control part 22 stores the sound source signal after decoding, and controls the sound source signal to be sent to the second sound effect processing part 25 after the time delay is preset, and the second sound effect processing part 25 is right after the sound source signal is subjected to sound effect processing and is synchronously output with the first Bluetooth sound box 1. The first bluetooth speaker 1 is used as a slave of the second bluetooth speaker 2. The second receiving part 14 receives the sound source signal and transmits the sound source signal to the first control part 11, and the first storage delay control part 12 stops working; the first sound effect processing part 15 is right after sound source signals are subjected to sound effect processing, the sound source signals are synchronously output with the second Bluetooth sound box 2. Therefore, the utility model discloses a support multiple play mode's two-computer wireless bluetooth simulcast audio amplifier system in arbitrary bluetooth speaker's host computer bluetooth speaker is unrestricted, promptly first bluetooth speaker 1 reaches second bluetooth speaker 2 all can regard as the use of host computer bluetooth speaker. In the host Bluetooth sound box, the transmitting part and the receiving part are jointly opened to play a role. And in the slave Bluetooth sound box, the receiving part is opened, and the transmitting part is closed. Therefore, the utility model discloses a user experience is high.
Preferably, the first audio source extension input unit 16 includes a USB input unit, a TF input unit, and an AUX input unit; the USB input unit, the TF input unit, and the AUX input unit are electrically connected to the first control part 11, respectively.
Preferably, the first extension portion further includes an FM input unit; the FM input unit is electrically connected to the first control portion 11.
Preferably, the second source extension input section has the same structure as the first source extension input section. In this embodiment, referring to fig. 4a, 4b and 4c, after the first bluetooth sound box 1 or the second bluetooth sound box 2 is selected as the host, the sound source input of the host bluetooth sound box can be expanded by reading the sound source signal of the USB card, the TF card, the AUX audio device with the 3.5mm audio line, or the FM broadcast in which the audio file is stored. The master Bluetooth sound box obtains the sound source signal of the corresponding sound source extension input part, decodes the sound source signal and transmits the decoded sound source signal to the slave Bluetooth sound box through the transmitting part. The storage delay control part stores the sound source signal and controls the sound source signal to delay for preset time; and receiving the sound source signal from the slave Bluetooth sound box, and then carrying out sound effect processing and synchronous playing with the master Bluetooth sound box. Therefore, the utility model discloses a multi-mode broadcast satisfies the diversified play mode's in market demand.
Preferably, the first sound effect processing part 15 includes a power amplifying unit, a speaker driving unit and a speaker; the power amplification unit is electrically connected with the first storage delay control part, the loudspeaker driving unit is electrically connected with the power amplification unit, and the loudspeaker is electrically connected with the loudspeaker driving unit. The power amplification unit is used for carrying out power amplification on the sound source signal, and the loudspeaker driving unit drives the loudspeaker to play and output the sound source signal.
Preferably, referring to fig. 3, the sound source signal includes a sound source signal from the bluetooth device a or a sound source signal of the first sound source extension input part. In this embodiment, the bluetooth device a includes a television, a mobile phone, a tablet computer, and a notebook computer. In another preferred embodiment, the audio signal is from any audio device with bluetooth function, and the type and structure of the device are not limited in detail herein.
To sum up, the utility model discloses a support multiple play mode's duplex wireless bluetooth simulcast audio amplifier system, including first bluetooth speaker 1 and second bluetooth speaker 2, first bluetooth speaker 1 with realize wireless communication between 2 second bluetooth speaker and connect. The first bluetooth sound box 1 comprises a first control part 11, a first storage delay control part 12, a first transmitting part 13, a first sound effect processing part 15 and a first sound source expansion input part 16; the first storage delay control part 12, the first transmitting part 13, the first audio processing part 15 and the first audio source extension input part 16 are electrically connected to the first control part 11, respectively, and the first audio processing part 15 is electrically connected to the first storage delay control part 12; the first sound source extension input part 16 receives sound source signals and decodes the sound source signals through the first control part 11, and the first transmitting part 13 collects the decoded sound source signals and transmits the sound source signals to the second bluetooth speaker 2; first storage time delay control section 12 storage sound source signal after decoding to control sound source signal delay after the preset time send for first audio processing part 15, first audio processing part 15 is right sound source signal carry out the audio processing after with second bluetooth speaker 2 carries out synchronous output.
The second bluetooth speaker 2 comprises a second control part 21, a second storage delay control part 22, a first receiving part 24 and a second sound effect processing part 25; the second storage delay control part 22, the first receiving part 24 and the second sound effect processing part 25 are electrically connected with the second control part 21 respectively; the first receiving part 24 receives the sound source signal and transmits the sound source signal to the second control part 21, and the second storage delay control part 22 stops working; the second sound effect processing part 25 processes the sound source signal and then outputs the sound source signal synchronously with the first bluetooth sound box 1. The utility model discloses in, first sound source extension input part 15 is right the input sound source of first bluetooth speaker has expanded, and passes through first storage time delay control part is right the broadcast time of input sound source carries out time delay control, thereby has realized second bluetooth speaker 2 reaches the simulcast that synchronizes of first bluetooth speaker 1 has realized the multi-mode broadcast, satisfies the diversified play mode's in market demand, promotes user experience.
The dual-computer wireless bluetooth simulcast sound box system supporting multiple play modes provided by the utility model is introduced in detail, and specific examples are applied to explain the principle and the implementation mode of the utility model, and the explanation of the above embodiments is only used for helping to understand the method and the core idea of the utility model; meanwhile, to the general technical personnel in this field, according to the utility model discloses an idea, all can have the change part on concrete implementation and application scope, to sum up, this description content only is the utility model discloses an embodiment, does not consequently restrict the utility model discloses a patent scope, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing did, or directly or indirectly use in other relevant technical fields, all the same reason is included in the utility model discloses a patent protection scope. And should not be construed as limiting the invention.

Claims (8)

1. The utility model provides a support duplex wireless bluetooth simulcast audio amplifier system of multiple play mode, includes first bluetooth speaker and second bluetooth speaker, first bluetooth speaker with realize wireless communication between the second bluetooth speaker and be connected, its characterized in that includes:
the first Bluetooth sound box comprises a first control part, a first storage delay control part, a first transmitting part, a first sound effect processing part and a first sound source expansion input part; the first storage delay control part, the first transmitting part, the first sound effect processing part and the first sound source expansion input part are respectively electrically connected with the first control part, and the first sound effect processing part is electrically connected with the first storage delay control part; the first sound source extension input part is used for receiving sound source signals, the first control part is used for decoding the sound source signals, and the first transmitting part is used for collecting the decoded sound source signals and transmitting the sound source signals to the second Bluetooth loudspeaker box; the first storage delay control part is used for storing the decoded sound source signal, controlling the sound source signal to be delayed for preset time and then sending the sound source signal to the first sound effect processing part, and the first sound effect processing part is used for carrying out sound effect processing on the sound source signal;
the second Bluetooth sound box comprises a second control part, a second storage delay control part, a first receiving part and a second sound effect processing part; the second storage delay control part, the first receiving part and the second sound effect processing part are respectively electrically connected with the second control part; the first receiving part is used for receiving the sound source signal and transmitting the sound source signal to the second control part, and the second storage delay control part stops working; the second sound effect processing part is used for carrying out sound effect processing on the sound source signals.
2. The system of claim 1, wherein the first bluetooth speaker comprises a second receiving portion; the second receiving portion is electrically connected with the second control portion.
3. The system of claim 1, wherein the second bluetooth speaker further comprises a second sound source extension input part and a second transmitting part; the second sound source extension input part and the second transmitting part are respectively electrically connected with the second control part.
4. The system of claim 3, wherein the first audio expansion input unit comprises a USB input unit, a TF input unit, and an AUX input unit; the USB input unit, the TF input unit and the AUX input unit are electrically connected with the first control part respectively.
5. The system of claim 4, wherein the first audio source extension input part further comprises an FM input unit; the FM input unit is electrically connected to the first control portion.
6. The system of claim 4 or 5, wherein the second audio expansion input part has the same structure as the first audio expansion input part.
7. The system of claim 6, wherein the first sound processing part comprises a power amplifier unit, a speaker driver unit and a speaker; the power amplification unit is electrically connected with the first storage delay control part, the loudspeaker driving unit is electrically connected with the power amplification unit, and the loudspeaker is electrically connected with the loudspeaker driving unit.
8. The system of claim 7, wherein the audio signal comprises an audio signal from a bluetooth device or an audio signal from the first audio expansion input part.
CN202020518065.6U 2020-04-09 2020-04-09 Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes Active CN211860441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020518065.6U CN211860441U (en) 2020-04-09 2020-04-09 Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020518065.6U CN211860441U (en) 2020-04-09 2020-04-09 Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes

Publications (1)

Publication Number Publication Date
CN211860441U true CN211860441U (en) 2020-11-03

Family

ID=73144021

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020518065.6U Active CN211860441U (en) 2020-04-09 2020-04-09 Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes

Country Status (1)

Country Link
CN (1) CN211860441U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596675A (en) * 2021-07-27 2021-11-02 惠州市欧凡实业有限公司 Wireless Bluetooth audio output system and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113596675A (en) * 2021-07-27 2021-11-02 惠州市欧凡实业有限公司 Wireless Bluetooth audio output system and control method thereof

Similar Documents

Publication Publication Date Title
US10158934B2 (en) Case for multiple earpiece pairs
JP3890856B2 (en) Wireless audio equipment
KR20200139198A (en) Earphone wireless communication method, master earphone, slave earphone and earphone system
EP2498515A2 (en) Audio apparatus, audio signal transmission method, and audio system
CN102648606B (en) Terminal device, sound output method, and information processing system
CN110503984A (en) Playback method, equipment and the system of wireless audio playback equipment
CN102045468A (en) Mobile phone and incoming alerting system
US8693951B2 (en) Wireless audio frequency playing apparatus and wireless playing system using the same
JP2014011793A (en) Radio audio/video system for audio signal reproduction and method of controlling the same
JP4003788B2 (en) Wireless audio equipment
CN202771806U (en) Wireless MP3 (moving picture expert group audio layer-3) digital music player
CN211981866U (en) 2.4G wireless audio signal receiving and transmitting integrated wireless transmission terminal
CN211860441U (en) Dual-computer wireless Bluetooth simulcast sound box system supporting multiple play modes
WO2018177243A1 (en) Bluetooth speaker and bluetooth speaker-based sharing system
CN108076411B (en) Speaker device, electronic device connected with speaker device and control method of electronic device
CN213339098U (en) Wireless transmitting device
CN113473319A (en) Bluetooth multi-channel audio playing method, device and system
EP1633133A2 (en) Portable apparatus for enabling reproduction of television
CN205408125U (en) WIFI audio amplifier and public address system
CN101950155B (en) Multifunctional intelligent alarm clock sounding device
CN101009897A (en) Apparatus and method for outputting audio data using wireless terminal
US7970342B1 (en) Digital music player accessory with digital communication capability
CN117501725A (en) Data transmission method and device
CN105139886B (en) A kind of method for playing music and system using switching device
CN220570583U (en) Television singing system, circuit board and television

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant