CN204669601U - A kind of full Wireless high fidelity sound system - Google Patents
A kind of full Wireless high fidelity sound system Download PDFInfo
- Publication number
- CN204669601U CN204669601U CN201520435005.7U CN201520435005U CN204669601U CN 204669601 U CN204669601 U CN 204669601U CN 201520435005 U CN201520435005 U CN 201520435005U CN 204669601 U CN204669601 U CN 204669601U
- Authority
- CN
- China
- Prior art keywords
- audio
- wireless
- transmitter
- sound
- sound system
- 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 - Fee Related
Links
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000005236 sound signal Effects 0.000 claims description 50
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
Landscapes
- Circuit For Audible Band Transducer (AREA)
- Stereophonic System (AREA)
Abstract
The utility model provides a kind of full Wireless high fidelity sound system, music box and at least one audio amplifier, and wherein, music box comprises: wireless audio receiver, audio process and the first wireless audio frequency transmitter; Wherein, wireless audio receiver is connected with the first reception antenna, audio process and the first wireless audio frequency transmitter, the connection of audio process and the first wireless audio frequency transmitter, and the first wireless audio frequency transmitter is connected with transmitting antenna; Audio amplifier comprises: the second wireless audio frequency transmitter, power amplifier and loud speaker, and wherein, the second wireless audio frequency transmitter is connected with the second reception antenna and power amplifier, and power amplifier is connected with loud speaker.Music box in this system is connected by the mode of special digital radio communication with between each audio amplifier, makes Complete Synchronization between each audio amplifier like this, and is not vulnerable to extraneous wireless signal interference.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a brand-new wireless sound system.
Background
The sound system is a sound system which is formed by converting sound wave signals of original sound production field sounds into electric signals by a microphone, processing the electric signals by some electronic equipment according to certain requirements, and finally converting the electric signals into the sound wave signals by a loudspeaker for reproduction.
In a traditional sound system, it is common that a music source generator (CD, DVD, MP3, tv, etc.) is connected with a sound box by wire, and it is inconvenient for a user to push music into the sound box; in addition, in the use environment, the connection of the sound boxes affects the appearance, and if a hidden line is laid, the use position of the sound box can be fixed, so that the use complexity is increased.
At present, the music source generator and the loudspeaker box are connected in a playing mode of wireless Bluetooth, but the Bluetooth is lossy transmission and has influence on tone quality; in addition, the Bluetooth control range is smaller, and the mobility is not enough. Recently, a mode of playing music through WiFi (WIreless Fidelity) is becoming popular, which overcomes the disadvantages of bluetooth and greatly improves the sound quality and mobility, such as the playserial products of Sonos (carnot). For the connection inside the sound system, there are some products that use FM (Frequency Modulation) Frequency Modulation for connection, but this method has a large loss to sound quality and is susceptible to interference.
The Sonos patents US 8843228 and US 7571014 disclose a WiFi-based wireless music system in which the audio input is based on a WiFi network and the speakers in the system are interconnected based on the WiFi network. However, the following problems exist in this patent: 1) because the sound boxes are synchronized based on the WiFi network, for network synchronization, such as based on NTP (network Time protocol), the synchronization precision is in millisecond level, and for the WiFi wireless network, the communication mode is Time Division duplex (Time Division duplex), the synchronization precision is not sufficient; and certain error exists in the synchronization among the sound boxes, and for stereo, especially for multi-channel surround sound (such as 5.1 and 7.1), sound field positioning deviation can be caused, and the music playing effect is influenced. For example, the WiFi network has a synchronization accuracy of +/-5ms, which for voice means a spatial deviation of approximately 2 meters. 2) Because the sound boxes in the system are interconnected based on the WiFi network, a large quantity of continuous data signals need to be carried, and the instability of the wireless music system in the playing process is caused by the influence of the performance of the router and the WiFi wireless environment of the use occasion. Therefore, an acoustic system capable of solving the above-described problems has been desired.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a full wireless high-fidelity sound system, is connected through special digital radio communication's mode between the music box in this system and every audio amplifier, makes like this completely synchronous between every audio amplifier, and is difficult for receiving external radio signal interference.
This full wireless hi-fi sound system includes: the music box is connected with each sound box in a special digital wireless communication mode; wherein,
the music box comprises: the wireless audio receiver is used for receiving a first audio signal and decoding the first audio signal into a second audio signal, the audio processor is used for processing the second audio signal to obtain a third audio signal, and the first wireless audio transmitter is used for carrying out frequency conversion on the third audio signal to obtain a radio frequency signal and sending the radio frequency signal out; the input end of the wireless audio receiver is connected with a first receiving antenna, the output end of the wireless audio receiver is respectively connected with the audio processor and the input end of the first wireless audio transmitter, the output end of the audio processor is connected with the input end of the first wireless audio transmitter, and the output end of the first wireless audio transmitter is connected with a transmitting antenna;
the sound box comprises: the second wireless audio transmitter is used for receiving the radio-frequency signal sent by the first wireless audio transmitter and carrying out frequency conversion reduction on the radio-frequency signal to obtain a third audio signal, the power amplifier is used for carrying out power amplification on the third audio signal to obtain a fourth audio signal, and the loudspeaker is used for receiving the fourth audio signal and carrying out sound production, wherein the input end of the second wireless audio transmitter is connected with the second receiving antenna, the output end of the second wireless audio transmitter is connected with the input end of the power amplifier, and the output end of the power amplifier is connected with the input end of the loudspeaker.
In the technical scheme, the Wireless audio receiver receives the first audio signal through the first receiving antenna, namely, the music source is obtained in a Wireless-Fidelity (Wifi) mode, so that the convenience of a user and the mobility of a system are greatly enhanced; moreover, the music box sends the received audio signals to all the sound boxes in a special wireless communication mode, and due to the special synchronization and related protocols, the complete synchronization among all the sound boxes is guaranteed.
Preferably, the music box further comprises a power adapter, which is respectively connected with the wireless audio receiver, the audio processor and the first wireless audio transmitter and supplies power to the wireless audio receiver, the audio processor and the first wireless audio transmitter.
In the present technical solution, the power adapter converts 110-220V voltage into 5V dc output, which respectively supplies power to the wireless audio receiver, the audio processor and the first wireless audio transmitter, and of course, other types of power adapters may be used, which are determined according to the power required by the wireless audio receiver, the audio processor and the first wireless audio transmitter.
Preferably, the music box further comprises a bluetooth signal receiver, a coaxial audio interface, or an SPDIF interface (Sony/Philips digital interface Format is short for Sony and Philips digital audio interface) or an analog audio interface, which is respectively connected to the audio processor and the power adapter.
In the technical scheme, the interface or the Bluetooth receiver (a Bluetooth receiving module built in the music box) is arranged in the music box, so that the music box can obtain music signals through wireless Wifi and can receive the music signals through Bluetooth or a coaxial audio line or an SPDIF line or an analog audio line, a user can freely select the music signals according to actual conditions, and the music box is high in system selectivity, flexible and convenient.
Preferably, the all-wireless hi-fi sound system comprises a plurality of sound boxes, and each sound box is connected with the music box.
In this technical scheme, we set up a plurality of audio amplifier in the system, form the form output of wireless form one to many in music box and a plurality of audio amplifier like this, like this the utility model provides a full wireless hi-fi sound system just can make up the output like 2.0 (the stereo of binaural output) through a plurality of audio amplifiers, 5.1 (center sound channel, leading left and right sound channel, rearmounted left and right surround the sound channel), 7.1 (add surround the stereo in the middle of 5.1's main audio amplifier and back surround the stereo) these music forms.
Preferably, the sound box further comprises a microprocessor, which is connected to and configured with the second audio transmitter and the power amplifier, respectively.
Preferably, the sound box further comprises a power converter, which is respectively connected with and supplies power to the second audio transmitter, the power amplifier, the microprocessor and the loudspeaker.
In the technical scheme, the power converter converts 110-220V power into 3.3V and 24V direct current outputs respectively, wherein the 3.3V direct current output supplies power to the second audio transmitter, the power amplifier and the microprocessor, and the 24V direct current output supplies power to the loudspeaker.
Preferably, the power amplifier is a class D power amplifier.
Preferably, the first wireless audio transmitter and the second wireless audio transmitter are arranged in a matched manner.
In this technical scheme, first wireless audio transmitter and second audio transmitter are arranged in the radio frequency signal's in the music box sending and the receiving of the radio frequency signal in the second audio amplifier respectively, consequently, in order to realize the utility model discloses communication between music box and the audio amplifier should match the setting in this first wireless audio transmitter and the second wireless audio transmitter, and its inside chip that uses the same model promptly.
Preferably, the wireless hi-fi sound system further comprises a server end for controlling the music box, and the server end communicates with the music box through Wifi or bluetooth or coaxial audio line or SPDIF line or analog audio line.
In the technical scheme, the server side is arranged in the full wireless high-fidelity sound system, so that the music box and each sound box can be controlled through the server side, and meanwhile, a first audio signal can be pushed to the music box. Specifically, the server side may be a mobile terminal (e.g., a mobile phone, a tablet, etc. with a corresponding application installed) or a PC (personal computer) with a corresponding application installed, or a cloud server, etc.
The utility model provides a full wireless hi-fi sound system can bring following beneficial effect at least:
1. in the utility model, the wireless audio receiver is arranged in the music box, so that the music box acquires the first audio signal in a wireless connection mode, the convenience of using the sound system by a user is greatly improved, and the mobility of the sound system is improved; moreover, the user can be directly connected to the Internet through WiFi, so that the user can obtain a music source on the network at any time, and the method is simple and convenient; finally, due to the wide bandwidth of the WiFi channel, high-fidelity and high-quality music source data can be obtained.
2. In the utility model, the music box and each sound box are communicated by adopting a special digital wireless communication mode, so that the sound boxes are completely synchronized; the special digital wireless communication mode does not conflict with common wireless environments such as WiFi and Bluetooth, is not easily interfered, and is not easily interfered by other signals like FM; moreover, the special digital wireless communication mode is high in transmission rate, for example, above 24bit/96kHz, high-fidelity audio data transmission can be achieved, the high-fidelity performance of the whole system is guaranteed, and the loudspeaker box can be conveniently deployed wirelessly and is not constrained by related connection conditions.
Drawings
The foregoing features, technical features, advantages and embodiments are further described in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.
Fig. 1 is a schematic structural diagram of a first specific embodiment in a middle-full wireless hi-fi sound system of the present invention;
FIG. 2 is a schematic view of the internal structure of the music box of the present invention;
fig. 3 is a schematic diagram of the internal structure of each sound box in the present invention;
fig. 4 is a schematic structural diagram of a second specific embodiment in the middle-full wireless hi-fi sound system of the present invention.
Reference numerals:
100. a music box, 110, a wireless audio receiver, 120, an audio processor,
130. a first wireless audio transmitter, 200 sound, 210 a second audio transmitter,
220. power amplifier, 230, speaker, 300, server,
A. the antenna comprises a first receiving antenna, a B transmitting antenna and a C second receiving antenna.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort. Fig. 1 is a schematic structural diagram of a first specific embodiment in a full wireless hi-fi sound system provided by the present invention, and it can be seen from the diagram that the wireless fidelity sound system includes a music box 100 and at least one speaker 200, and the music box 100 is connected to each speaker 200 through a dedicated digital wireless communication mode. It should be noted that, in the present invention, the music box 100 may obtain audio data (i.e. the first audio signal described below) from a music source such as a server, the internet, a mobile terminal (a mobile phone, a tablet, etc.) in a wireless Wifi manner, perform related Digital signal processing on the audio data, and finally transmit the audio data (i.e. the radio frequency signal obtained by frequency conversion described below) to each sound box 200 in a high fidelity manner in a dedicated wireless Digital communication manner, specifically, in this process, the music box 100 may obtain the audio data (the first audio signal) in a manner of SPDIF (Sony/Philips Digital Interface Format, Digital audio Interface Format), ethernet or bluetooth, and we do not limit here specifically. Correspondingly, in each loudspeaker box 200, after receiving the audio data sent by the music box 100 in high fidelity, the received audio data is then processed and power amplified, and finally output as sound through speaker 230, which, as will be described, in the utility model, when a plurality of sound boxes (sound box 1, sound box 2 … …, sound box n) are included, different sound boxes 200 can play the same music data, and also can play the music data output by different sound channels, thus, a sound system is formed, for example, the common forms of 2.0 (stereo sound output by two channels), 2.1 (two channels output with a subwoofer), 5.1 (center channel, front left and right channels, rear left and right surround channels), 7.1 (surround sound is added between the main sound box and the rear surround sound box of 5.1) and the like are output through the combination of a plurality of sound boxes. In the present invention, we do not specifically limit the audio data input mode of the music box 100, the form of the audio output played by the sound box 200, and so on, as long as it can realize the purpose of the present invention, which is included in the contents of the present invention.
Specifically, as shown in fig. 2, the music box 100 includes therein: the wireless audio receiver 110, the audio processor 120 and the first wireless audio transmitter 130, wherein an input end of the wireless audio receiver 110 is connected to the first receiving antenna a, an output end of the wireless audio receiver 110 is connected to the audio processor 120 and an input end of the first wireless audio transmitter 130, an output end of the audio processor 120 is connected to an input end of the first wireless audio transmitter 130, and an output end of the first wireless audio transmitter 130 is connected to the transmitting antenna B. During the operation of the music box 100, firstly, the wireless audio receiver 110 receives a first audio signal through the first receiving antenna a, controls and decodes the first audio signal to obtain a second audio signal, and sends the second audio signal to the audio processor 120; after the audio processor 120 receives the second audio signal, it processes the second audio signal to generate a third audio signal; finally, the first wireless audio transmitter 130 receives the third audio signal, and frequency-converts the third audio signal to a wireless radio frequency band through internal processing to generate a radio frequency signal, and then sends out the radio frequency signal through the transmitting antenna B. In a specific embodiment, the wireless audio receiver 110 may use a wireless smart chip with a model MT7620A, the audio processor 120 may use a DSP (Digital Signal Processing) chip with a model CS493263, the first wireless audio transmitter 130 may use a wireless audio chip with a model CC8520 to achieve the object of the present invention, and the wireless audio receiver 110 with a model MT7620A sends the second audio Signal to the audio processor 120 with a model CS493263 through an interface I2S, and the audio processor 120 with a model CS493 sends the third audio Signal to the first wireless audio transmitter 130 with a model CC8520 through an interface I2S. Specifically, in this embodiment, the functions implemented by the wireless audio receiver 110 with the chip model MT7620A include: 1) as a channel for receiving a first audio signal and a command by wireless Wifi, 2) using a processor inside the chip to complete playing protocols such as Digital Living Network Alliance (DLNA) and Airplay, 3) completing decoding and playing of the first audio signal, and 4) performing relevant configuration on a first wireless audio transmitter 130 with the model of CC8520 by the chip through an I2C interface; the processing of the second audio signal by the audio processor 120 with the chip model CS493263 specifically includes equalization processing, channel balancing, filtering, volume control, Dolby (Dolby), and the like; compared with the existing WLAN (Wireless Local Area network) solution, the first Wireless audio output device 130 with the CC8520 chip has a lower delay, and can achieve the best synchronization between audio and video. It should be noted that in other embodiments, other chips may be used to achieve the purpose of the present invention, and we do not limit it specifically here. Of course, the music box 100 further includes a power adapter for converting the input voltage of 110-220V into a 5V dc output, and respectively supplying power to the wireless audio receiver 110, the audio processor 120 and the first wireless audio transmitter 130.
As shown in fig. 3, the sound box 200 includes: a second wireless audio transmitter 210, a power amplifier 220 and a speaker 230, wherein the input end of the second wireless audio transmitter 210 is connected with the second receiving antenna C, the output end is connected with the input end of the power amplifier 220, and the output end of the power amplifier 220 is connected with the input end of the speaker 230. In the working process, the second wireless audio transmitter 210 receives the radio frequency signal sent by the first wireless audio transmitter 130 in the music box 100, and the radio frequency signal is subjected to internal frequency conversion processing to obtain a third audio signal and then output to the power amplifier 220; the power amplifier 220 receives the third audio signal, performs power amplification on the third audio signal to obtain a fourth audio signal, and sends the fourth audio signal to the speaker 230, so as to drive the speaker 230 to emit sound and play the fourth audio signal. In a specific embodiment, the second wireless audio transmitter 210 may use a wireless audio chip with model CC8520, the power amplifier 220 may use a class D amplifier to achieve the above-mentioned purpose, and the second wireless audio transmitter 210 transmits the third audio signal to the power amplifier 220 through the interface I2S, where we do not limit the specific form of the second wireless audio transmitter 210 and the power amplifier 220, as long as it can achieve the purpose of the present invention, all included in the contents of the present invention.
Further, in the utility model discloses in, still include a microprocessor in the audio amplifier 200, this microprocessor is connected with second wireless audio transmitter 210 and power amplifier 220 respectively, and dispose second wireless audio transmitter 210 and power amplifier 220 respectively, in particular embodiment, can use the model to be STM32F 103's microprocessor chip to realize above-mentioned purpose, and this chip model is STM32F 103's microprocessor is connected for the second wireless audio transmitter 210 of CC8520 and the operational amplifier 220 that puts for D class fortune through interface I2C respectively. In addition, the sound box 200 further includes a power converter, which is respectively connected to and supplies power to the second wireless audio transmitter 210, the power amplifier 220, the microprocessor and the speaker 230, in an embodiment, the power converter converts 110-220V voltage into 3.3V and 24V voltage, wherein the 3.3V voltage supplies power to the second wireless audio transmitter 210, the power amplifier 220 and the microprocessor, and the 24V voltage supplies power to the speaker 230.
Fig. 2 is a schematic structural diagram of a second embodiment in a full wireless hi-fi sound system according to the present invention, and it can be seen from the diagram that the second embodiment is a server 300 added on the basis of the first embodiment, and the server 300 is used to control the music box and each speaker (e.g. play/pause, select a sound source, etc.) respectively, and meanwhile, the server 300 is also used to push the first audio signal to the music box, where the first audio signal may be a song, etc. Further, the server 300 communicates with the music box through wireless Wifi (through the above wireless audio receiver) or bluetooth (through a built-in bluetooth receiver), or a coaxial audio line (through a coaxial audio interface), or an SPDIF line (through an SPDIF interface), or an analog audio line (through an analog audio interface in the music box). Specifically, in this embodiment, the server 300 may be a mobile terminal (e.g., a mobile phone, a tablet, etc. with a corresponding application installed) or a PC (personal computer) with a corresponding application installed, or a cloud server, etc.; if the music box communicates with the server 300 through wireless Wifi, the server 300 includes a wireless audio transmitter corresponding to the music box; if the music box communicates with the server 300 through the bluetooth signal, the server 300 includes a bluetooth signal transmitter; if the music box and the server 300 are connected with the music box through a coaxial audio line or an SPDIF line or an analog audio line, a corresponding interface is included in the server 300.
In summary, in the present invention, the wireless audio receiver 110 is disposed in the music box 100, so that the music box 100 acquires the first audio signal in a wireless connection manner, which greatly improves the convenience of the user in using the sound system and improves the mobility of the sound system; moreover, since the music box 100 and each sound box are communicated in a special digital wireless communication mode, the sound boxes 200 are completely synchronized; and this special digital wireless communication mode, wireless environment commonly used such as wiFi, bluetooth is conflict-free, is difficult to receive the interference, more can not receive other signal interference like FM, promptly the utility model provides a fine solution of wireless high fidelity system the problem that exists among the current sound system.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. An all wireless hi-fi sound system, comprising: the music box is connected with each sound box in a special digital wireless communication mode; wherein,
the music box comprises: the wireless audio receiver is used for receiving a first audio signal and decoding the first audio signal into a second audio signal, the audio processor is used for processing the second audio signal to obtain a third audio signal, and the first wireless audio transmitter is used for carrying out frequency conversion on the third audio signal to obtain a radio frequency signal and sending the radio frequency signal out; the input end of the wireless audio receiver is connected with a first receiving antenna, the output end of the wireless audio receiver is respectively connected with the audio processor and the input end of the first wireless audio transmitter, the output end of the audio processor is connected with the input end of the first wireless audio transmitter, and the output end of the first wireless audio transmitter is connected with a transmitting antenna;
the sound box comprises: the second wireless audio transmitter is used for receiving the radio-frequency signal sent by the first wireless audio transmitter and carrying out frequency conversion reduction on the radio-frequency signal to obtain a third audio signal, the power amplifier is used for carrying out power amplification on the third audio signal to obtain a fourth audio signal, and the loudspeaker is used for receiving the fourth audio signal and carrying out sound production, wherein the input end of the second wireless audio transmitter is connected with the second receiving antenna, the output end of the second wireless audio transmitter is connected with the input end of the power amplifier, and the output end of the power amplifier is connected with the input end of the loudspeaker.
2. The all wireless hi-fi sound system of claim 1, wherein: the music box also comprises a power adapter which is respectively connected with the wireless audio receiver, the audio processor and the first wireless audio transmitter and supplies power to the wireless audio receiver, the audio processor and the first wireless audio transmitter.
3. The fully wireless hi-fi sound system of claim 2, wherein: the music box also comprises a Bluetooth signal receiver or a coaxial audio interface or an SPDIF interface or an analog audio interface which are respectively connected with the audio processor and the power adapter.
4. The all wireless hi-fi sound system of claim 1, wherein: the full wireless high-fidelity sound system comprises a plurality of sound boxes, and each sound box is connected with the music box.
5. The fully wireless hi-fi sound system of claim 4, wherein: the loudspeaker box also comprises a microprocessor which is respectively connected with the second audio transmitter and the power amplifier and is configured.
6. The fully wireless hi-fi sound system of claim 5, wherein: the loudspeaker box also comprises a power converter which is respectively connected with the second audio transmitter, the power amplifier, the microprocessor and the loudspeaker and supplies power to the second audio transmitter, the power amplifier, the microprocessor and the loudspeaker.
7. The fully wireless hi-fi sound system of claim 6, wherein: the power amplifier is a D-type power amplifier.
8. The all wireless hi-fi sound system of claim 7, wherein: the first wireless audio transmitter and the second wireless audio transmitter are arranged in a matched mode.
9. A fully wireless hi-fi sound system according to any one of claims 1 to 8, wherein: the full wireless high-fidelity sound system also comprises a server end used for controlling the music box, and the server end is communicated with the music box through wireless Wifi or Bluetooth or coaxial audio line or SPDIF line or analog audio line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435005.7U CN204669601U (en) | 2015-06-23 | 2015-06-23 | A kind of full Wireless high fidelity sound system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435005.7U CN204669601U (en) | 2015-06-23 | 2015-06-23 | A kind of full Wireless high fidelity sound system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204669601U true CN204669601U (en) | 2015-09-23 |
Family
ID=54139938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520435005.7U Expired - Fee Related CN204669601U (en) | 2015-06-23 | 2015-06-23 | A kind of full Wireless high fidelity sound system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204669601U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105721987A (en) * | 2016-01-26 | 2016-06-29 | 上海智觅智能科技有限公司 | Method for realizing distributed speaker by employing Bluetooth |
| CN105959878A (en) * | 2016-05-18 | 2016-09-21 | 广东欧珀移动通信有限公司 | Control method and device of stereo sound system |
| CN106170109A (en) * | 2015-12-23 | 2016-11-30 | 闫天时 | A kind of movie theatre Wireless surrounding audio amplifier |
| CN110383797A (en) * | 2017-03-13 | 2019-10-25 | 索尼公司 | Terminal installation and communication means |
| CN111065018A (en) * | 2019-12-20 | 2020-04-24 | 晨诚兴科技深圳有限公司 | WIFI audio amplifier combination of low-, medium-, and high-audio frequency |
| WO2020107485A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Bluetooth connection method and device |
| CN112333512A (en) * | 2020-11-18 | 2021-02-05 | 深圳巴金科技有限公司 | Audio-visual system, audio delay detection method and audio-visual watching scene synchronization method |
-
2015
- 2015-06-23 CN CN201520435005.7U patent/CN204669601U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106170109A (en) * | 2015-12-23 | 2016-11-30 | 闫天时 | A kind of movie theatre Wireless surrounding audio amplifier |
| CN105721987A (en) * | 2016-01-26 | 2016-06-29 | 上海智觅智能科技有限公司 | Method for realizing distributed speaker by employing Bluetooth |
| CN105959878A (en) * | 2016-05-18 | 2016-09-21 | 广东欧珀移动通信有限公司 | Control method and device of stereo sound system |
| CN110383797A (en) * | 2017-03-13 | 2019-10-25 | 索尼公司 | Terminal installation and communication means |
| CN110383797B (en) * | 2017-03-13 | 2022-06-21 | 索尼公司 | Terminal device and communication method |
| WO2020107485A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Bluetooth connection method and device |
| US11653398B2 (en) | 2018-11-30 | 2023-05-16 | Huawei Technologies Co., Ltd. | Bluetooth connection method and device |
| CN111065018A (en) * | 2019-12-20 | 2020-04-24 | 晨诚兴科技深圳有限公司 | WIFI audio amplifier combination of low-, medium-, and high-audio frequency |
| CN112333512A (en) * | 2020-11-18 | 2021-02-05 | 深圳巴金科技有限公司 | Audio-visual system, audio delay detection method and audio-visual watching scene synchronization method |
| CN112333512B (en) * | 2020-11-18 | 2024-04-12 | 深圳巴金科技有限公司 | Audio and video system, audio delay detection method and audio and video watching scene synchronization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204669601U (en) | A kind of full Wireless high fidelity sound system | |
| CN108337595B (en) | Bluetooth headset realizes the method being precisely played simultaneously | |
| US9078058B2 (en) | Applications for a two-way wireless speaker system | |
| EP1532749B1 (en) | Portable audio playback device with bass enhancement | |
| CN108886647B (en) | Earphone noise reduction method and device, master earphone, slave earphone and earphone noise reduction system | |
| KR100728019B1 (en) | Method for wireless transmitting audio signals and appararus thereof | |
| US9671998B2 (en) | Synchronised control | |
| US10394521B1 (en) | Speaker device with equalization tool | |
| CN104936102A (en) | Stereo control method, stereo control device and split type stereo sound boxes | |
| WO2015139351A1 (en) | 5 ghz wireless stereo sound system | |
| CN109714671A (en) | A kind of wireless K song sound system | |
| CN105208495A (en) | Stereo headphone | |
| JP7530895B2 (en) | Bluetooth speaker configured to generate sound and function simultaneously as both a sink and a source | |
| CN109658910A (en) | A kind of wireless K song system | |
| CN203747954U (en) | Microphone and audio transmission system | |
| US10952005B1 (en) | Stereo paired speaker system with center extraction | |
| US20230319454A1 (en) | Wireless high-resolution headphones | |
| CN203039685U (en) | Wireless transmission system | |
| CN207340161U (en) | A kind of K song systems based on Baffle Box of Bluetooth | |
| CN202077166U (en) | Synchronized regulation sound equipment and application equipment thereof | |
| CN203590427U (en) | Bluetooth acoustic system | |
| CN203243505U (en) | Electronic device and built-in loudspeaker box system of electronic device | |
| CN102355622A (en) | Synchronous external-playing system and application device thereof | |
| JP3205125U (en) | Instrument cable with Bluetooth reception function | |
| US20100106268A1 (en) | Packet-based audio conversion and distribution device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200109 Address after: 201899 room j2332, building 1, no.2222, Huancheng Road, Juyuan New District, Jiading District, Shanghai Patentee after: Shanghai Wudi Union Technology Co.,Ltd. Address before: 201203, 23 building, Menara Citibank, No. 33, garden stone bridge, Shanghai, Pudong New Area Patentee before: SHANGHAI ACE MART INTELLIGENT TECHNOLOGY CO.,LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200825 Address after: Room 1611, 16 / F, building 1, No. 811, Pingcheng Road, Juyuan New District, Jiading District, Shanghai, 201899 Patentee after: Shanghai Huadiao Technology Co.,Ltd. Address before: 201899 room j2332, building 1, no.2222, Huancheng Road, Juyuan New District, Jiading District, Shanghai Patentee before: Shanghai Wudi Union Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210615 Address after: 201800 room 321, 3 / F, building 8, 55 Huiyuan Road, Jiading District, Shanghai Patentee after: Shanghai Wudi Union Technology Co.,Ltd. Address before: 201899 room 1611, 16 / F, building 1, No. 811, Pingcheng Road, Juyuan New District, Jiading District, Shanghai Patentee before: Shanghai Huadiao Technology Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 |