CN217985039U

CN217985039U - Multi-channel audio signal wireless transmitting device

Info

Publication number: CN217985039U
Application number: CN202222353678.0U
Authority: CN
Inventors: 李祖培
Original assignee: Shenzhen Wanyin Electronic Technology Co ltd
Current assignee: Shenzhen Wanyin Electronic Technology Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-06
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a multichannel audio signal wireless transmitter, including USB transmitter (8), 5.1 sound channel audio amplifier combination, the public head end of USB transmitter (8) inserts in USB2.0 or the 3.0 jack of TV set (1) or projecting apparatus, and USB transmitter (8) receive the SPIDF digital signal decoding conversion of TV set (1), projecting apparatus output and become the IIS digital audio signal of a plurality of sound channels, and USB transmitter (8) and each audio amplifier in 5.1 sound channel audio amplifier combination all match transmission signal through wireless. The utility model discloses can decode the digital audio signal of TV set, projector output and convert IIS digital audio signal into a plurality of sound channels, every audio amplifier is sent to rethread wireless mode to the mode that realizes exempting from the cloth audio line connects 5.1 or 7.1 surround sound home theater stereo.

Description

Multi-channel audio signal wireless transmitting device

Technical Field

The utility model relates to a wireless transmitting device, concretely relates to multichannel audio signal wireless transmitting device.

Background

Since the development of 5.1-channel home theater sound products, the traditional large floor type sound boxes such as a desk type power amplifier and a passive sound box are taken as main parts, modern European style simple indoor decoration designs become mainstream with the rise of urban residences at present, and the traditional large-volume sound box of the home theater sound is difficult to become the first choice of consumers, so that the defects that 5.1-channel and 7.1-channel surround sound devices need an external decoder and a power amplifier, a large number of audio lines are used, audio digital signals output by equipment such as a modern home smart television are difficult to convert into 5.1-channel audio signals, and transmission is inconvenient are mainly existed.

Disclosure of Invention

The utility model aims to solve the technical problem that a multichannel audio signal wireless transmitting device adopts a USB transmitter, digital signal when can playing the film with equipment such as intelligent TV set, projector, player converts 5.1 multichannel audio signal to and send a plurality of audio amplifier through wireless mode to realize exempting from the mode connection 5.1 or 7.1 surround sound home theater stereo set of cloth audio line.

The utility model discloses a realize through following technical scheme: a multi-channel audio signal wireless transmitting device comprises a USB transmitter and a 5.1 sound channel and sound box combination, wherein a USB male head end of the USB transmitter is inserted into a USB jack of a television or a projector, the USB transmitter decodes and converts digital audio signals output by the television or the projector into IIS digital audio signals of a plurality of sound channels through optical fibers or coaxial lines, and the USB transmitter and the 5.1 sound channel and sound box combination transmit signals through wireless matching.

The technical scheme is that a main board is arranged in the USB transmitter, an SPDIF signal shaping reverser chip, a decoding module, a DSP module, a wireless microphone receiving chip and a wireless transmitting chip are arranged on the main board, the SPDIF signal shaping reverser is used for receiving SPDIF digital audio signals transmitted by a television and a projector, the SPDIF digital audio signals are shaped by the SPDIF signal shaping reverser and transmitted to the decoding module, the decoding module decodes the optical fiber audio signals into IIS multi-channel audio signals and transmits the IIS multi-channel audio signals to the DSP module, the DSP module sends the MIC signals and the multi-channel audio signals to the wireless module after carrying out sound mixing processing, and the MIC signals and the multi-channel audio signals are combined with a 5.1 sound channel sound box through the wireless module to be wirelessly matched and transmitted.

As the preferred technical scheme, the 5.1 sound channel sound box combination adopts wireless active sound boxes, and the USB emitter is provided with a 3.5 optical fiber plug female seat, a USB3.0 plug male seat and a USB3.0 plug female seat.

As a preferred technical solution, the television, the projector and the player output the SPDIF optical fiber audio signal, the SPDIF coaxial audio signal and the IIS audio signal, which can be connected to the USB transmission module device, and provide 5V power supply through the USB socket to output to the USB transmitter.

As a preferred technical scheme, IIS multi-channel audio signals can be directly input through 9 pins of a USB3.0 male plug, or SPDIF signals are received through an optical fiber line, enter a shaping reverser, then enter a decoding module, finally enter a DSP module and a wireless microphone receiving chip for sound mixing processing, and then are sent to a wireless transmitting module.

The beneficial effects of the utility model are that: the utility model discloses can decode the digital audio signal of TV set, projector output and convert the IIS digital audio signal into a plurality of sound channels, every audio amplifier is sent to the wireless mode of rethread to the mode that realizes exempting from the cloth audio line connects 5.1 or 7.1 surround sound home theater stereo set.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a working principle diagram of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

As shown in fig. 1, the utility model discloses a multichannel audio signal wireless transmitting device, including USB transmitter 8, 5.1 sound channel audio amplifier combination, USB transmitter 8's the public head end of USB inserts to the USB jack of TV set 1 or projecting apparatus in, USB transmitter 8 decodes the digital audio signal of converting TV set 1, projector output into the IIS digital audio signal of a plurality of sound channels through optic fibre or coaxial line 7, USB transmitter 8 and 5.1 sound channel audio amplifier combination are through wireless matching transmission signal.

As shown in fig. 2, a main board is disposed in the USB transmitter 8, an SPDIF signal shaping inverter, a decoding module, a DSP module, a wireless microphone receiving chip and a wireless transmitting chip are disposed on the main board, the SPDIF signal shaping inverter is configured to receive audio output signals transmitted by the television and the projector, and shaped by the SPDIF signal shaping inverter and transmitted to the decoding module, the decoding module decodes the optical fiber audio signal into IIS multi-channel audio signals and transmits the IIS multi-channel audio signals to the DSP module, the DSP module sends MIC signals and multi-channel audio signals to the wireless module after performing audio mixing processing respectively, and wirelessly matches the MIC signals with a 5.1 sound channel speaker combination through the wireless module to transmit signals, the 5.1 sound channel speaker combination all uses wireless 5.1 sound channels, and the USB transmitter 8 has a 3.5 optical fiber plug 9.

The television end, the projector end and the player output SPDIF optical fiber audio signals and SPDIF coaxial audio signals to the SPDIF signal shaping reverser end, and provide 5V power supply output to the USB transmitter end through the USB socket.

In this embodiment, the 5.1 channel speaker set includes a front channel right speaker 11, a center channel speaker 12, a subwoofer 13, a front channel left speaker 14, a rear surround channel left speaker 15, and a rear surround channel right speaker 16.

In the present embodiment, the projectors include a cradle afocal projector 2, a desktop afocal projector 3, a first portable projector 4, a second portable projector 5, and an ultra-short-focus projector 6.

The USB emitter can be connected to the USB jacks of the television and the projector and comprises a USB2.0 or USB3.0 socket; meanwhile, the digital audio signals output by the television and the projector can be decoded and converted into IIS digital audio signals of a plurality of sound channels by connecting an optical fiber line or a coaxial line, and then the IIS digital audio signals are sent to each sound box in a wireless mode, so that 5.1 or 7.1 surround sound home theater sound equipment is connected in a mode of no audio line distribution.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A multi-channel audio signal wireless transmission apparatus, characterized in that: the sound box comprises a USB emitter (8) and a 5.1 sound channel sound box combination, wherein a USB male end of the USB emitter (8) is inserted into a USB2.0 or 3.0 jack of a television (1) or a projector, the USB emitter (8) receives SPIDF digital signals output by the television (1) and the projector and decodes and converts the SPIDF digital signals into IIS digital audio signals of a plurality of sound channels, and the USB emitter (8) and each sound box in the 5.1 sound channel sound box combination transmit signals through wireless matching.

2. The apparatus for wireless transmission of a multi-channel audio signal according to claim 1, wherein: the USB transmitter (8) is internally provided with a mainboard, the mainboard is provided with an SPDIF signal shaping reverser, a decoding module, a DSP module, a wireless microphone receiving module and an IIS audio wireless transmitting module, a USB3.0 male plug supports multi-channel IIS digital audio signal or SPDIF signal access, a 3.5 jack is connected with a television, a projector and a player through an optical fiber or coaxial audio cable, receives the transmitted SPDIF signal, is shaped by the SPDIF signal shaping reverser and then transmitted to the decoding module, the output end of the shaping reverser is connected with the decoding module, the output end of the decoding module is connected with the DSP module, the decoding module decodes the optical fiber audio signal into IIS multi-channel audio signal and transmits the IIS multi-channel audio signal to the DSP module, the output end of the DSP module is connected with the IIS audio wireless transmitting module, the DSP module respectively carries out sound mixing processing on MIC signals and multi-channel audio signals and then transmits the signals to the IIS audio wireless transmitting module through wireless matching with each sound box of 5.1 sound channel through the IIS audio wireless transmitting module.

3. The apparatus for wireless transmission of a multi-channel audio signal according to claim 1, wherein: in the 5.1 sound channel and sound box combination, 2.0 sound channels, 2.1 sound channels or 5.1 sound channels are used through wireless connection, and the USB emitter (8) is provided with an optical fiber jack, a USB3.0 plug male seat and a USB3.0 plug female seat.

4. The apparatus for wireless transmission of a multi-channel audio signal according to claim 2, wherein: the television, the projector and the player output SPDIF optical fiber audio signals or SPDIF coaxial audio signals and IIS audio signals which are all connected into the USB transmitter, and 5V power supply is provided through the USB socket to be output to the USB transmitter end.

5. The apparatus for wireless transmission of a multi-channel audio signal according to claim 2, wherein: the USB3.0 male plug has 9 pins for directly inputting IIS multi-channel audio signals, or receives SPDIF signals through an optical fiber line, enters a shaping reverser, enters a decoding module, finally enters a DSP module and a wireless microphone receiving chip for audio mixing processing, and then is sent to an IIS audio wireless transmitting module.