CN219843601U

CN219843601U - Built-in multichannel wireless emission soundbar

Info

Publication number: CN219843601U
Application number: CN202321269599.XU
Authority: CN
Inventors: 朱文锋; 肖杰行; 沈洋; 陈锐
Original assignee: Zhongshan Yuechen Electronic Industry Co ltd
Current assignee: Zhongshan Yuechen Electronic Industry Co ltd
Priority date: 2023-05-23
Filing date: 2023-05-23
Publication date: 2023-10-17
Anticipated expiration: 2033-05-23

Abstract

The utility model discloses a built-in multichannel wireless transmitting soundbar, which comprises a transmitting end and a receiving end, wherein the transmitting end comprises a Bluetooth module, a decoding module, a wireless transmitting module and an HDMI (high-definition multimedia interface) module electrically connected with the Bluetooth module, the output end of the Bluetooth module is electrically connected with the input end of the decoding module, the output end of the decoding module is electrically connected with the wireless transmitting module, and the Bluetooth module can convert Bluetooth signals and HDMI signals into I2S signals; the receiving end comprises a wireless receiving module, a first power amplification module and a second power amplification module, and the wireless receiving module is electrically connected with the first power amplification module and the second power amplification module respectively; therefore, the soundbar can receive and output various audio signals and can adapt to various sound source devices.

Description

Built-in multichannel wireless emission soundbar

Technical Field

The utility model relates to the technical field of soundbar, in particular to a built-in multichannel wireless transmitting soundbar.

Background

Soundbar is a sound bar, is generally directly placed below a flat-panel television, and can obviously improve the sound experience of consumers. The existing wireless transmitting module on the Soundbar generally comprises a transmitting end and a receiving end, an audio signal on a television or other devices is transmitted through the transmitting end, and the receiving end receives the audio signal and then restores to the Soundbar for playing. The traditional soundbar with a wireless transmitting module can only send a single-channel audio signal to a receiving end, then the receiving end restores audio play after receiving the signal, the defect of single audio input signal exists, and the soundbar cannot adapt to various audio source devices.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and provides a built-in multi-channel wireless transmitting soundbar which can adapt to various sound source devices.

According to the embodiment of the utility model, the built-in multichannel wireless transmitting soundbar comprises a transmitting end and a receiving end, wherein the transmitting end comprises a Bluetooth module, a decoding module, a wireless transmitting module and an HDMI module which is respectively and electrically connected with the Bluetooth module and the decoding module, the output end of the Bluetooth module is electrically connected with the input end of the decoding module, the output end of the decoding module is electrically connected with the wireless transmitting module, and the Bluetooth module can convert Bluetooth signals into I2S signals; the receiving end comprises a wireless receiving module, a first power amplification module and a second power amplification module, and the wireless receiving module is electrically connected with the first power amplification module and the second power amplification module respectively.

According to some embodiments of the utility model, the HDMI module includes a plurality of HDIM inputs and an HDMI output backhaul, which is also an HDMI ARC/EARC audio backhaul channel, and the HDMI output backhaul is electrically connected to the bluetooth module and the decoding module, respectively.

According to some embodiments of the utility model, the system further comprises an analog audio input module electrically connected to the bluetooth module, the analog audio input module capable of receiving audio of an analog signal and transmitting the audio to the bluetooth module, the bluetooth module capable of converting the analog audio signal into an I2S signal.

According to some embodiments of the utility model, the device further comprises a USB signal input module electrically connected with the Bluetooth module, wherein the USB signal input module can transmit audio to the Bluetooth module through a USB interface, and the Bluetooth module can convert USB signals into I2S signals.

According to some embodiments of the utility model, the system further comprises a fiber optic input module electrically connected to the bluetooth module, the fiber optic input module capable of transmitting audio to the decoding module through a fiber optic interface.

According to some embodiments of the utility model, the audio decoder further comprises a coaxial input module electrically connected to the bluetooth module, the coaxial input module being capable of transmitting audio to the decoding module via a coaxial cable interface.

According to some embodiments of the utility model, the receiving end further includes a DAC conversion module, the second power amplifier module is an analog power amplifier, the wireless receiving module is electrically connected to an input end of the DAC conversion module, an output end of the DAC conversion module is connected to the second power amplifier module, and the second I2S signal output by the wireless transmitting module outputs an audio analog signal to the second power amplifier through the DAC conversion module to perform audio amplification and reduction.

According to some embodiments of the utility model, the DAC conversion module is a digital-to-analog converter.

The built-in multi-channel wireless transmitting soundbar provided by the embodiment of the utility model has at least the following beneficial effects: the Bluetooth module can receive audio of Bluetooth signals and can convert the audio signals into I2S signals, the HDMI module can receive the audio of HDMI signals and transmit the audio to the Bluetooth module 11, the Bluetooth module converts the HDMI audio signals into I2S signals, the I2S signals are transmitted to the decoding module for decoding and then transmitted through the wireless transmitting module, the wireless receiving module receives the transmitted audio signals and outputs two paths of I2S signals, wherein the first path of I2S signals are output to the first power amplification module for amplifying and restoring sound, and the second path of I2S signals are output to the second power amplification module for amplifying and restoring sound; therefore, the soundbar can receive and output various audio signals and can adapt to various sound source devices.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The following describes the embodiments of the present utility model further with reference to the drawings;

FIG. 1 is a schematic circuit diagram of a built-in multi-channel wireless transmit soundbar;

fig. 2 is a schematic circuit diagram of a built-in multi-channel wireless transmit soundbar.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Referring to fig. 1 and 2, the utility model relates to a built-in multi-channel wireless transmitting soundbar, which comprises a transmitting end 10 and a receiving end 20, wherein the transmitting end 10 comprises a bluetooth module 11, a decoding module 12, a wireless transmitting module 13 and an HDMI module 14 electrically connected with the bluetooth module 11 and the decoding module 12 respectively, the output end of the bluetooth module 11 is electrically connected with the input end of the decoding module 12, and the output end of the decoding module 12 is electrically connected with the wireless transmitting module 13; the receiving end 20 comprises a wireless receiving module 21, a first power amplification module 22 and a second power amplification module 23; in some embodiments, the first power amplifier module has an I2S input end, the receiving end 20 further includes a DAC conversion module 24, the second power amplifier module 23 is an analog power amplifier, the wireless receiving module 21 is electrically connected to the input ends of the first power amplifier module 22 and the DAC conversion module 24, and the output end of the DAC conversion module 24 is connected to the second power amplifier module 23.

The working principle of the soundbar is as follows: the Bluetooth module 11 can receive audio of Bluetooth signals and convert the Bluetooth signals into I2S signals, the HDMI module 14 can receive audio of HDMI signals and transmit HDMI audio signals to the Bluetooth module 11, the Bluetooth module converts the HDMI audio signals into I2S signals, the I2S signals are transmitted to the decoding module 12 for decoding and then transmitted through the wireless transmitting module 13, the wireless receiving module 21 receives the transmitted audio signals and then outputs two paths of I2S signals, wherein the first path of I2S signals are directly output to the first power amplification module 22 with I2S input for amplifying and restoring sound, and the second path of I2S signals output audio analog signals to the second power amplification module 23 through the DAC conversion module 24 for amplifying and restoring sound; therefore, the soundbar can receive and output various audio signals and can adapt to various sound source devices.

As shown in fig. 2, in some embodiments, the HDMI module 14 includes a plurality of HDMI input terminals and HDMI output and return terminals, and the HDMI output and return terminals are also HDMI ARC/EARC audio return channels, i.e., the HDMI output and return terminals are hdmi_out & ARC ports, and the HDMI chip U3 can process received audio and also process ARC/EARC signals returned by television or projection.

In some embodiments, the Bluetooth module 11 further comprises an analog audio input module 16 electrically connected with the Bluetooth module 11, the Bluetooth module 11 adopts the Bluetooth chip MCU1, the analog audio input module 16 can receive audio of the analog signal and transmit the audio to the Bluetooth module 11, the Bluetooth module 11 can convert the analog audio signal into an I2S signal, the I2S signal is transmitted to the decoding module 12 for decoding, and then transmitted through the wireless transmitting module 13, and the wireless receiving module 21 receives the transmitted audio signal.

In some embodiments, the device further comprises a USB signal input module 17 electrically connected to the bluetooth module 11, the USB signal input module is capable of transmitting audio to the bluetooth module 11 through a USB interface, the bluetooth module 11 is capable of converting a USB signal into an I2S signal, the I2S signal is transmitted to the decoding module 12 for decoding, and then transmitted through the wireless transmitting module 13, and the wireless receiving module receives the transmitted audio signal.

In some embodiments, the device further comprises an optical fiber input module 18 electrically connected with the decoding module 12, the optical fiber input module 18 can transmit audio to the bluetooth module 11 through an optical fiber interface, the bluetooth module 11 converts the audio signal into an I2S signal, the I2S signal is transmitted to the decoding module 12 for decoding, and then transmitted through the wireless transmitting module 13, and the wireless receiving module 21 receives the transmitted audio signal.

In some embodiments, the audio processing device further comprises a coaxial input module 19 electrically connected with the decoding module 12, the coaxial input module 19 can transmit audio to the bluetooth module 11 through a coaxial cable interface, the bluetooth module 11 converts the audio signal into an I2S signal, the I2S signal is transmitted to the decoding module 12 for decoding, and then transmitted through the wireless transmitting module, and the wireless receiving module receives the transmitted audio signal.

It should be noted that, all modules in the present utility model may be in the prior art, for example, the bluetooth module 11 may be a bluetooth chip with built-in USB OTG and bluetooth receiving and ADC digital-to-analog conversion functions, and may convert the audio signals received by USB and the audio signals received by bluetooth and analog audio signals into I2S signals; the DAC conversion module 24 is a common digital-to-analog 13 converter, the decoding module 12 may use a DSP audio decoding chip, the wireless transmitting module and the wireless receiving module may use a 2.4G/5G wireless transceiver chip, the first power amplifier module 22 and the second power amplifier module 23 both use existing power amplifiers, and the specific circuits thereof are not described in detail herein, but should not be considered as limiting the utility model, and the other modules are the same.

It will be readily appreciated by those skilled in the art that the above preferred modes can be freely combined and superimposed without conflict.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims

1. Built-in multichannel wireless transmission soundbar, including transmitting end (10) and receiving end (20), its characterized in that:

the transmitting end (10) comprises a Bluetooth module (11), a decoding module (12), a wireless transmitting module (13) and an HDMI module (14) which is respectively and electrically connected with the Bluetooth module and the decoding module, wherein the output end of the Bluetooth module (11) is electrically connected with the input end of the decoding module (12), the output end of the decoding module (12) is electrically connected with the wireless transmitting module (13), and the Bluetooth module (11) can convert an audio signal into an I2S signal;

the receiving end (20) comprises a wireless receiving module (21), a first power amplification module (22) and a second power amplification module (23), and the wireless receiving module (21) is electrically connected with the first power amplification module (22) and the second power amplification module respectively.

2. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the HDMI module (14) comprises a plurality of HDMI input ends and HDMI output and return ends, the HDMI output and return ends are also HDMI ARC/EARC audio return channels, and the HDMI output and return ends are respectively and electrically connected with the Bluetooth module and the decoding module.

3. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the Bluetooth module (11) is electrically connected with the Bluetooth module (11), the Bluetooth module (11) can convert the analog audio signal into an I2S signal, and the Bluetooth module (11) is electrically connected with the Bluetooth module (11).

4. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the USB signal input module (17) is electrically connected with the Bluetooth module (11), the USB signal input module (17) can transmit audio to the Bluetooth module (11) through a USB interface, and the Bluetooth module (11) can convert USB signals into I2S signals.

5. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the Bluetooth module (11) is electrically connected with the Bluetooth module, and the Bluetooth module (11) is electrically connected with the Bluetooth module through the optical fiber interface.

6. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the Bluetooth module (11) is electrically connected with the Bluetooth module, and the Bluetooth module (11) is also provided with a coaxial input module (19), wherein the coaxial input module (19) can transmit audio to the Bluetooth module (11) through a coaxial cable interface.

7. The built-in multi-channel wireless transmit soundbar of claim 1, wherein: the receiving end further comprises a DAC conversion module (24), the second power amplification module (23) is an analog power amplification, the wireless receiving module is electrically connected with the input end of the DAC conversion module (24), and the output end of the DAC conversion module (24) is connected with the second power amplification module (23).

8. The built-in multi-channel wireless transmit soundbar of claim 7, wherein: the DAC conversion module (24) is a digital-to-analog converter.