CN220732846U - Wireless audio return system based on television ARC - Google Patents
Wireless audio return system based on television ARC Download PDFInfo
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- CN220732846U CN220732846U CN202322431120.4U CN202322431120U CN220732846U CN 220732846 U CN220732846 U CN 220732846U CN 202322431120 U CN202322431120 U CN 202322431120U CN 220732846 U CN220732846 U CN 220732846U
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- 238000006243 chemical reaction Methods 0.000 claims description 40
- 239000013307 optical fiber Substances 0.000 claims description 16
- 239000003381 stabilizer Substances 0.000 claims description 8
- 101001019109 Homo sapiens Mediator of RNA polymerase II transcription subunit 24 Proteins 0.000 claims description 7
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Abstract
The utility model relates to the technical field of audio signal transmission, in particular to a television ARC-based wireless audio feedback system. The television comprises a television, sound equipment, a transmitting end and receiving ends, wherein the transmitting end is connected to a signal port of the television, the transmitting end is connected with the television to establish ARC communication and audio stream transmission, each receiving end is connected to an audio port of one sound equipment, the receiving end is connected with the sound equipment to establish audio stream transmission, and the transmitting end and at least one receiving end are connected in a wireless mode to establish communication. The HDMI wire between the two terminals of the television and the sound is replaced by a transmitting end and a receiving end for transmitting or receiving wireless signals, and the constraint and limitation of the HDMI wire are avoided through wireless audio transmission; the receiving terminals are diversified, different receiving terminals are provided with different audio ports, and more types of sound can be better adapted.
Description
Technical Field
The utility model relates to the technical field of audio signal transmission, in particular to a television ARC-based wireless audio feedback system.
Background
ARC (Audio Return Channel) is an audio return channel, and the main function of ARC is to transmit sound signals, and its appearance can make the digital home appliance simple and convenient in terms of wire installation. On the HDMI interface supporting ARC, the electronic device may transmit the audio signal back to the power amplifier or other audio devices with ARC supporting functions through the HDMI line through ARC, so that no additional digital output wires are needed. Furthermore, the intelligent television can directly and reversely output digital audio to the power amplifier for decoding through the HDMI line.
However, the television audio feedback can be used only through an HDMI wire, and a wired connection mode still exists, and the wired connection is also limited by wires, so that the wiring layout is affected; in addition, the television audio feedback can only be limited to the sound with the ARC feedback function, and the sound without the HDMI ARC interface can not transmit the television audio back to the sound, so that the use is affected.
Disclosure of Invention
The utility model provides a wireless audio feedback system based on television ARC, which aims to solve the problems that the existing ARC feedback function still needs the wire constraint caused by the wired connection of HDMI wires and audio feedback is difficult to realize by sound without an HDMI ARC interface.
The utility model provides a television ARC-based wireless audio return system which comprises a television, sound equipment, a transmitting end and receiving ends, wherein the transmitting end is connected to a signal port of the television, the transmitting end is connected with the television to establish ARC communication and audio stream transmission, each receiving end is connected to an audio port of one sound equipment, the receiving end is connected with the sound equipment to establish audio stream transmission, and the transmitting end and at least one receiving end are connected in a communication mode through a wireless frequency band.
As a further improvement of the present utility model, the transmitting end includes an audio digital conversion chip, an ARC communication module, a wireless transmitting module for transmitting wireless signals, and an ARC receiving port for interfacing with a television signal port, wherein the ARC receiving port establishes unidirectional connection with the audio digital conversion chip and transmits audio streams, the audio digital conversion chip establishes unidirectional connection with the wireless transmitting module and transmits audio streams, and the ARC communication module establishes bidirectional communication connection with the wireless transmitting module and the ARC receiving port, respectively.
As a further improvement of the utility model, the transmitting end further comprises a power supply control module, wherein the power supply control module is respectively connected with and supplies power to the wireless transmitting module and the ARC receiving port, and the power supply control module is respectively connected with and supplies power to the audio digital conversion chip and the ARC communication module through the LDO voltage stabilizer.
As a further improvement of the utility model, the receiving end comprises an audio digital conversion chip, a wireless receiving module for receiving wireless signals and an audio output port for docking with sound, wherein the wireless receiving module establishes unidirectional connection with the audio digital conversion chip and transmits audio streams, and the audio digital conversion chip establishes unidirectional connection with the audio output port and transmits audio streams.
As a further improvement of the present utility model, the receiving end further includes an ARC communication module, the audio output port includes an ARC transmitting port for interfacing with an audio HDMI ARC signal port, and an optical fiber audio port for interfacing with an audio optical fiber interface, the ARC communication module establishes a bidirectional communication connection with the wireless receiving module and the ARC transmitting port, and the audio digital conversion chip establishes a unidirectional connection with the ARC transmitting port and the optical fiber audio port and transmits an audio stream.
As a further improvement of the utility model, the audio output port comprises a 3.5mm audio port and an RCA audio port to connect with a 3.5mm interface and an RCA interface of the sound equipment, and the audio digital conversion chip establishes unidirectional connection with the 3.5mm audio port and the RCA audio port and transmits audio streams.
As a further improvement of the utility model, the receiving end further comprises a power supply control module, wherein the power supply control module is respectively connected with and supplies power to the wireless receiving module and the ARC sending port, and the power supply control module is respectively connected with and supplies power to the audio digital conversion chip and the ARC communication module through the LDO voltage stabilizer.
As a further improvement of the present utility model, the audio digital conversion chip adopts CS8416 or CS8406 or CJC8988 chip.
As a further improvement of the present utility model, the ARC communication module is mainly composed of ARC100 chip circuits.
As a further improvement of the utility model, the transmitting end and the receiving end establish communication connection through the 2.4G frequency band.
As a further improvement of the present utility model, the transmitting end and the television are connected through an HDMI port with ARC.
The beneficial effects of the utility model are as follows: the HDMI wire between the two terminals of the television and the sound is replaced by a transmitting end and a receiving end for transmitting or receiving wireless signals, and the constraint and limitation of the HDMI wire are avoided through wireless audio transmission; the receiving terminals are diversified, different receiving terminals are provided with different audio ports, and more types of sound can be better adapted.
Drawings
FIG. 1 is a schematic diagram of a wireless audio backhaul system based on a television ARC according to the present utility model;
FIG. 2 is a structural logic diagram of a transmitting end in the present utility model;
FIG. 3 is a logic diagram of a receiving end structure for audio transmission through an HDMI port and an optical fiber audio port in the present utility model;
FIG. 4 is a logical diagram of the structure of a receiving end for audio transmission through a 3.5mm, RCA port in accordance with the present utility model;
fig. 5 is a circuit diagram of an ARC communication module in accordance with the present utility model;
fig. 6 is a circuit diagram of a 2.4G transmit/receive module in the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1, the wireless audio backhaul system based on the television ARC of the present utility model includes a television 1, a sound box 2, a transmitting end 3, and a receiving end 4, wherein the transmitting end 3 is connected to a signal port of the television 1, the transmitting end 3 establishes ARC communication and audio streaming connection with the television 1, each receiving end 4 is connected to an audio port of the sound box 2, the receiving end 4 establishes audio streaming connection with the sound box 2, and the transmitting end 3 and at least one receiving end 4 establish communication connection through a radio frequency band.
In the system, the mode of wired connection between the original television 1 and the sound equipment 2 through an HDMI wire is improved to the mode of wireless transmission so as to realize the transmission of audio signals from the television 1 to the sound equipment 2. After the television 1 is connected to the transmitting end 3, the television 1 and the transmitting end 3 communicate through ARC, the television 1 transmits the audio stream needing to be transmitted back to the transmitting end 3, and the transmitting end 3 converts the audio stream into a wireless signal and transmits the wireless signal. The receiving end 4 is connected to the receiving end 4 at the side of the sound equipment 2, after the receiving end 4 receives the wireless signal of the transmitting end 3, the wireless signal is converted back into an audio stream, the audio stream is transmitted to the sound equipment 2 through an audio port which is in butt joint with the sound equipment 2, and the corresponding audio is played by the sound equipment 2.
The transmitting end 3 and the receiving end 4 establish communication connection through the 2.4G frequency band. The wireless signal with the working frequency band of 2.4GHz has the characteristics of good wall penetrating performance and long propagation distance, and meets the requirement of establishing wireless connection on the side of the television 1 and the side of the sound 2. The one-to-one signal transmission between the transmitting end 3 and the receiving end 4 can be realized through a wireless transmission mode, the signal transmission between one transmitting end 3 and a plurality of receiving ends 4 can be realized at the same time, and compared with the traditional wired transmission mode, the wireless transmission method is more efficient, and more wires are omitted.
The transmitting terminal 3 and the television 1 are connected through an HDMI port with ARC. The HDMI port with ARC allows unidirectional transmission of audio signals at the television 1 to the transmitting end 3 without the need for additional audio cables or optical fibers; simultaneously, the audio stream is transmitted from the television 1 to the transmitting end 3 and then transmitted to the sound equipment 2 side for playing through wireless transmission.
Each receiving end 4 is provided with at least one audio port to be correspondingly connected with the audio port of the sound equipment 2, and the model of the audio port comprises 3.5mm, HDMI, RCA and an optical fiber port. In order to adapt to the old type sound equipment 2 without the HDMI interface, different receiving ends 4 are provided with different audio ports to meet the requirements of the sound equipment 2 with different audio ports, and received audio signals are converted into audio stream signals with corresponding interfaces in the receiving ends 4 and then transmitted to the corresponding different sound equipment 2 for playing.
As shown in fig. 2, the transmitting end 3 includes an audio digital conversion chip 5, an ARC communication module 6, a wireless transmitting module 31 for transmitting wireless signals, and an ARC receiving port 32 for interfacing with a signal port of the television 1, where the ARC receiving port 32 establishes a unidirectional connection with the audio digital conversion chip 5 and transmits audio streams, the audio digital conversion chip 5 establishes a unidirectional connection with the wireless transmitting module 31 and transmits audio streams, and the ARC communication module 6 establishes a bidirectional communication connection with the wireless transmitting module 31 and the ARC receiving port 32, respectively.
The ARC receiving port 32 of the transmitting end 3 receives the ARC communication signal and the audio stream from the television 1 side, wherein the communication signal is transmitted to the ARC communication module 6, so as to communicate with the television 1 through the transmitting end 3, confirm whether the handshake between the transmitting end 3 and the television 1 is successful, inform the television 1 side of sending the audio stream signal, and control the wireless transmitting module 31 to transmit the audio stream signal. The audio stream is transmitted to the audio digital conversion chip 5, and converted into a signal required for wireless transmission, and then the converted audio stream is transmitted to the wireless transmitting module 31, and is transmitted to the receiving end 4 connected with the sound equipment 2 through wireless transmission.
The wireless transmitting module 31 is further provided with a PA interface, an ANT interface, a key and an LED display lamp, the PA interface is connected with the port adapter, the antenna is connected with the antenna through the ANT interface to realize wireless signal propagation, the key is used for controlling the operation of the transmitting terminal 3, and the LED display lamp can display whether the transmitting terminal 3 is in a starting-up running state or not.
The transmitting end 3 further comprises a power supply control module 7, the power supply control module 7 is respectively connected with and supplies power to the wireless transmitting module 31 and the ARC receiving port 32, and the power supply control module 7 is respectively connected with and supplies power to the audio digital conversion chip 5 and the ARC communication module 6 through the LDO voltage stabilizer 8. The power supply control module 7 is configured to provide power support for the internal components of the transmitting terminal 3, and the power supply control module 7 may be connected to an external power source and converted into a voltage required by the components for power supply. By supplying power to the ARC receiving port 32 and the wireless transmitting module 31, the receiving and wireless transmitting of the audio signal of the television 1 can be ensured; the LDO voltage stabilizer 8 is used for providing the audio digital conversion chip 5 and the ARC communication module 6 with stability of the working voltage state.
As shown in fig. 3, the receiving end 4 includes an audio digital conversion chip 5, a wireless receiving module 41 for receiving wireless signals, and an audio output port for interfacing with the signal port of the sound equipment 2, wherein the wireless receiving module 41 establishes unidirectional connection with the audio digital conversion chip 5 and transmits audio streams, and the audio digital conversion chip 5 establishes unidirectional connection with the audio output port and transmits audio streams.
The wireless receiving module 41 of the receiving end 4 is configured to receive the audio stream signal wirelessly transmitted by the transmitting end 3, transmit the audio stream signal to the audio digital conversion chip 5, convert the audio stream signal into audio streams with different output modes, and complete the transmission of the audio stream by docking the audio output port with different signal ports of the audio 2, so that the audio 2 plays corresponding audio.
The receiving end further comprises an ARC communication module 6, the audio output port comprises an ARC sending port 42 for butting an audio HDMI signal port and an optical fiber audio port 43 for butting an audio optical fiber interface, the ARC communication module 6 respectively establishes two-way communication connection with the wireless receiving module 41 and the ARC sending port 42, and the audio digital conversion chip 5 establishes one-way connection with the ARC sending port 42 and the optical fiber audio port 43 and transmits audio streams.
The audio digital conversion chip 5 is in butt joint with HDMI ARC signal ports of different sound equipment 2 through the ARC sending port 42, and is in butt joint with the optical fiber signal port of the sound equipment through the optical fiber audio port 43, so that the transmission of audio streams is completed, and the sound equipment 2 plays corresponding audio. The ARC communication module 6 is configured to communicate between the receiving end 4 and the audio device 2, confirm whether the handshake between the receiving end 4 and the audio device 2 is successful, inform the receiving end 4 to send an audio stream signal, control the wireless receiving module 41 to receive the audio stream signal, and transmit the received audio stream to the audio device 2.
The audio output port includes a 3.5mm audio port, RCA audio port 44 to connect the 3.5mm interface, RCA interface of the stereo 2, and the audio digitizer chip establishes a unidirectional connection with the 3.5mm audio port, RCA audio port 44 and transmits an audio stream.
For the audio output device without the HDMI interface, according to the type of the interface, the audio digital conversion chip 5 can be respectively in butt joint with the audio 2 without the HDMI interface through different interfaces such as a 3.5mm audio port, an RCA audio port 44, an optical fiber audio port and the like, so that the transmission of the audio stream is completed, and the corresponding audio 2 such as a power amplifier plays the corresponding audio.
The wireless receiving module 41 is further provided with a PA interface, an ANT interface, a key and an LED display lamp, the PA interface is connected with the port adapter, the antenna is connected with the antenna through the ANT interface to realize wireless signal receiving, the key is used for controlling the operation of the receiving end 4, and the LED display lamp can display whether the receiving end 4 is in a power-on running state or not, and the like.
The receiving end 4 further comprises a power supply control module 7, the power supply control module 7 is respectively connected with and supplies power to the wireless receiving module 41 and the ARC sending port 42, and the power supply control module 7 is respectively connected with and supplies power to the audio digital conversion chip 5 and the ARC communication module 6 through the LDO voltage stabilizer 8. The power supply control module 7 is used for providing power support for the internal components of the receiving end 4, and the power supply control module 7 can be connected with an external power supply and converted into the voltage required by the components for power supply. By supplying power to the ARC transmitting port 42 and the wireless receiving module 41, it is possible to ensure the transmission of audio signals to the television 2 and the wireless receiving and transmitting terminal 3; the LDO voltage stabilizer 8 is used for providing the audio digital conversion chip 5 and the ARC communication module 6 with stability of the working voltage state.
When the transmitting end 3 is in butt joint with the television 1 through HDMI, the audio digital conversion chip 5 of the transmitting end 3 adopts a CS8416 chip; when the receiving end 3 is in butt joint with the sound equipment 2 through HDMI and SPDIF, the audio digital conversion chip 5 of the receiving end 4 adopts a CS8406 chip; when the receiving end 3 is in butt joint with the sound equipment 2 through 3.5MM and RCA, the audio digital conversion chip 5 of the receiving end 4 adopts a CJC8988 chip.
As shown in fig. 4, the ARC communication module 6 is mainly composed of ARC100 chip circuits. When the ARC100 chip is used at the transmitting terminal 3, pins 11, 12, 13 and 14 of the ARC100 chip are respectively docked with pins 13, 15, 16 and 19 of the socket J1 of the ARC receiving port 32, and HDMI docking is performed with the television 1 side through the socket J1. When the ARC100 chip is removed for the receiving terminal 4, or the audio digital conversion chip 5 of the receiving terminal 4 is replaced with a CJC8988 chip in fig. 3, the jack J1 may be replaced with a different port (RCA/3.5 MM/SPDIF) for interfacing with the audio 2 without the HDMI ARC interface.
As shown in fig. 5, the circuit of the 2.4G transmitting module in the transmitting end 3 is composed of a chip QY920 and an AP1286S, which are respectively connected to the ARC100 chip through pins 42, 41 and 39 of the chip QY920, so as to realize the communication of control signals between the transmitting end 3 and the receiving end 4. When the chip QY920 is used for the transmitting end 3, the 30 th pin of the chip QY920 is connected to the antenna after passing through the chip AP1286S and is used for transmitting the audio stream signal, and when the chip QY920 is used for the receiving end 4, the 30 th pin of the chip QY920 is connected to the antenna after passing through the chip AP1286S and is used for receiving the audio stream signal.
The working principle of the television ARC-based wireless audio feedback system is as follows:
transmitting end 3:
A. the transmitting end 3 is inserted into an HDMI port with an ARC function on the television 1;
B. the transmitting end 3 informs the television 1 of starting the audio feedback function;
C. after receiving the corresponding notification handshake success, the television 1 outputs digital audio to the transmitting end 3;
D. the transmitting end 3 receives the digital audio stream and then transmits the digital audio stream through wireless 2.4G after internal recoding treatment;
receiving end 4:
E. the receiving end 4 receives the 2.4G signal of the transmitting end 3 and then re-decodes the signal;
F. converting the audio stream of the transmitting end 3 into different output modes: 3.5 MM/HDMI/RCA/optical fiber, output to stereo set 2 and play corresponding audio.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (10)
1. The wireless audio return system based on the television ARC is characterized by comprising a television, sound equipment, a transmitting end and receiving ends, wherein the transmitting end is connected to a signal port of the television, the transmitting end is connected with the television to establish ARC communication and audio stream transmission, each receiving end is connected to an audio port of one sound equipment, the receiving end is connected with the sound equipment to establish audio stream transmission, and the transmitting end and at least one receiving end are connected in a wireless mode.
2. The television-based ARC wireless audio backhaul system of claim 1, wherein the transmitting end comprises an audio digital conversion chip, an ARC communication module, a wireless transmitting module for transmitting wireless signals, and an ARC receiving port for interfacing with a television signal port, the ARC receiving port establishes a unidirectional connection with the audio digital conversion chip and transmits an audio stream, the audio digital conversion chip establishes a unidirectional connection with the wireless transmitting module and transmits an audio stream, and the ARC communication module establishes a bidirectional communication connection with the wireless transmitting module and the ARC receiving port, respectively.
3. The television-based ARC wireless audio feedback system of claim 2, wherein the transmitting terminal further comprises a power supply control module, the power supply control module is respectively connected with and supplies power to the wireless transmitting module and the ARC receiving port, and the power supply control module is respectively connected with and supplies power to the audio digital conversion chip and the ARC communication module through the LDO voltage stabilizer.
4. The television ARC-based wireless audio backhaul system of claim 1, wherein the receiving end comprises an audio digital conversion chip, a wireless receiving module for receiving wireless signals, and an audio output port for interfacing with sound, the wireless receiving module establishes a unidirectional connection with the audio digital conversion chip and transmits an audio stream, and the audio digital conversion chip establishes a unidirectional connection with the audio output port and transmits an audio stream.
5. The television-based ARC wireless audio backhaul system of claim 4, wherein the receiving end further comprises an ARC communication module, the audio output port comprises an ARC transmission port for interfacing with an audio HDMI ARC signal port, and an optical fiber audio port for interfacing with an audio optical fiber interface, the ARC communication module establishes a bi-directional communication connection with the wireless receiving module and the ARC transmission port, and the audio digital conversion chip establishes a uni-directional connection with the ARC transmission port and the optical fiber audio port and transmits an audio stream.
6. The television ARC-based wireless audio backhaul system of claim 4, wherein the audio output port comprises a 3.5mm audio port, an RCA audio port to connect with a 3.5mm interface, an RCA interface of the stereo, and the audio digitizer chip establishes a unidirectional connection with the 3.5mm audio port, the RCA audio port and transmits the audio stream.
7. The television-based ARC wireless audio feedback system of claim 5, wherein the receiving end further comprises a power supply control module, the power supply control module is respectively connected with and supplies power to the wireless receiving module and the ARC transmitting port, and the power supply control module is respectively connected with and supplies power to the audio digital conversion chip and the ARC communication module through the LDO voltage stabilizer.
8. The wireless audio backhaul system based on tv ARC according to any one of claims 2, 4-6, wherein the audio digital conversion chip is a CS8416 or CS8406 or CJC8988 chip.
9. The television-based ARC wireless audio feedback system of claim 2 or 5, wherein the ARC communication module consists essentially of ARC100 chip circuitry.
10. The television ARC-based wireless audio backhaul system of claim 1 wherein the transmitting end and the television are connected through an HDMI port with ARC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322431120.4U CN220732846U (en) | 2023-09-07 | 2023-09-07 | Wireless audio return system based on television ARC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322431120.4U CN220732846U (en) | 2023-09-07 | 2023-09-07 | Wireless audio return system based on television ARC |
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| Publication Number | Publication Date |
|---|---|
| CN220732846U true CN220732846U (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322431120.4U Active CN220732846U (en) | 2023-09-07 | 2023-09-07 | Wireless audio return system based on television ARC |
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| CN (1) | CN220732846U (en) |
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2023
- 2023-09-07 CN CN202322431120.4U patent/CN220732846U/en active Active
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