CN210183438U

CN210183438U - Wireless audio and video signal transmission extender

Info

Publication number: CN210183438U
Application number: CN201921715699.4U
Authority: CN
Inventors: Renqi Liu; 刘仁奇; Yingjie Zhao; 赵英杰
Original assignee: Dongguan City G-Max Electronics Co Ltd
Current assignee: Shenghong Electronic Technology (Dongguan) Co.,Ltd.
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-03-24
Anticipated expiration: 2029-10-14

Abstract

The utility model provides a wireless audio and video signal transmission extender, including wireless audio and video sender and wireless audio and video receiver, wireless audio and video sender includes sender shell and built-in sender circuit mainboard, sender circuit mainboard includes first power module, HDMI input interface, IC decoder, local loop-out interface and the first 5G wireless transceiver module; the wireless audio and video receiver comprises a receiver shell and a built-in receiver circuit main board, wherein the receiver circuit main board comprises a second power module, an HDMI output interface, a level converter, an HDMI converter and a second 5G wireless transceiver module. The utility model provides a wireless audio and video signal transmission extender cancels external antenna, adopts built-in hidden wireless signal receiver of 5G frequency channel, and wireless received signal is more stable, simultaneously, based on 5GHz frequency channel, uses 40MHz passageway, and transmission rate is up to 3 Gbps; lossless and uncompressed 1080P @60 HZ.

Description

Wireless audio and video signal transmission extender

Technical Field

The utility model relates to a wireless transmission technical field specifically is a wireless audio and video signal transmission extender.

Background

The HDMI (High Definition Multimedia Interface) is a digital video/audio Interface technology, and is a dedicated digital Interface suitable for video transmission, and can simultaneously transmit audio and video signals, the highest data transmission speed is 2.25GB/s, and at the same time, there is no need for digital-to-analog or analog-to-digital conversion before signal transmission, but the HDMI signal cannot be extended indefinitely due to the influence of factors such as signal source, and thus, the demand for a long-distance HDMI signal WIFI wireless extender is increasing. The existing wireless transmission audio and video products still have a plurality of defects due to technical limitation, firstly, the image quality is poor, the definition is not high, the transmission bandwidth of a 2.4G frequency band is limited, the high-definition audio and video data volume is huge, and the video data can be transmitted in real time only by being greatly compressed, so that the image quality is influenced; secondly, many fuselage adopt external antenna to carry out signal reception, and occupation space is big, and external antenna's angular position also can influence signal transmission.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless audio and video signal transmission extender to solve the technical problem in the background art.

In order to achieve the above object, the present invention provides the following technical solutions:

a wireless audio and video signal transmission extender comprises a wireless audio and video transmitter and a wireless audio and video receiver, wherein the wireless audio and video transmitter comprises a transmitter shell and a built-in transmitter circuit mainboard, the transmitter circuit mainboard comprises a first power module, an HDMI input interface, an IC decoder, a local loop-out interface and a first 5G wireless transceiving module, the HDMI input interface is connected with the first power module, and the IC decoder is respectively connected with the HDMI input interface, the local loop-out interface and the first 5G wireless transceiving module; the wireless audio and video receiver comprises a receiver shell and a built-in receiver circuit main board, wherein the receiver circuit main board comprises a second power module, an HDMI output interface, a level converter, an HDMI converter and a second 5G wireless transceiver module, the level converter is connected with the second power module, and the HDMI converter is respectively connected with the HDMI output interface, the level converter and the second 5G wireless transceiver module.

The front end of the transmitter shell is provided with two indicator lights which are respectively a first power indicator light and a first signal connection indicator light.

The front end of the receiver shell is provided with two indicator lights which are respectively a second power indicator light and a second signal connection indicator light.

The transmitter and receiver housings are both rectangular in configuration.

The left side and the right side of the transmitter shell are respectively provided with a first wall hanging plate, and the first wall hanging plates are provided with a plurality of first mounting holes.

The left side and the right side of the receiver shell are respectively provided with a second wall hanging plate, and the second wall hanging plates are provided with a plurality of second mounting holes.

The model of the IC decoder is Hi 3520D.

The transmitter shell is provided with a first infrared interface, and the receiver shell is provided with a second infrared interface.

Compared with the prior art, the utility model provides a wireless audio and video signal transmission extender cancels external antenna, adopts the wireless signal receiver of built-in hidden 5G frequency channel, and wireless received signal is more stable, simultaneously, based on 5GHz frequency channel, uses the 40MHz passageway, and transmission rate is up to 3 Gbps; the lossless and uncompressed 1080P @60HZ original film (TrueCinema) is transmitted in real time in a wireless mode, and delay is avoided (the delay is less than 1 millisecond), so that the transmission image quality is clearer and more stable.

Drawings

FIG. 1: a schematic diagram of a wireless audio and video signal transmission extender;

FIG. 2: the stereo structure schematic diagram of the wireless audio and video transmitter;

FIG. 3: a wireless audio/video transmitter rear view;

FIG. 4: a schematic three-dimensional structure diagram of the wireless audio and video receiver;

FIG. 5: a wireless audio and video receiver rear view;

FIG. 6: an HDMI converter circuit diagram;

FIG. 7: IC decoder circuit diagram.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Specific example 1: referring to fig. 1 to 4, in an embodiment of the present invention, a wireless audio/video signal transmission extender includes a wireless audio/video transmitter 1 and a wireless audio/video receiver 11, where the wireless audio/video transmitter 1 and the wireless audio/video receiver 11 provide excellent security and digital content protection capability for image data transmission through HDCP (high definition digital content protection) specification authentication, and support a CEC protocol control function.

The wireless audio and video transmitter 1 comprises a transmitter shell 2 and a built-in transmitter circuit mainboard, wherein the transmitter circuit mainboard comprises a first power module 3, an HDMI input interface 4, an IC decoder 5, a local loop-out interface 7 and a first 5G wireless transceiving module 6, the type of the IC decoder 5 is Hi3520D, the HDMI input interface 4 is connected with the first power module 3, and the IC decoder 5 is respectively connected with the HDMI input interface 4, the local loop-out interface 7 and the first 5G wireless transceiving module 6; the wireless audio and video receiver 11 comprises a receiver shell 12 and a built-in receiver circuit main board, the receiver circuit main board comprises a second power module 13, an HDMI output interface 16, a level shifter 14, an HDMI converter 15 and a second 5G wireless transceiving module 17, the type of the HDMI converter 15 chip is IT66021, the level shifter 14 is connected with the second power module 13, and the HDMI converter 15 is respectively connected with the HDMI output interface 16, the level shifter 14 and the second 5G wireless transceiving module 17. The HDMI output interface 16 is connected to a television or other display device.

ESD electrostatic protection circuits are arranged in the transmitter circuit main board and the receiver circuit main board, and therefore safety of the system is protected in an all-dimensional mode.

Two indicator lamps, namely a first power indicator lamp 9 and a first signal connection indicator lamp 10, are arranged at the front end of the transmitter shell 2.

The front end of the receiver housing 12 is provided with two indicator lights, a second power indicator light 18 and a second signal connection indicator light 19.

The transmitter housing and receiver housing 12 are both rectangular in configuration. The left side and the right side of the transmitter shell 2 are respectively provided with a first wall hanging plate 101, and the first wall hanging plate 101 is provided with a plurality of first mounting holes. The left side and the right side of the receiver shell 12 are respectively provided with a second wall hanging plate 1101, and a plurality of second mounting holes are arranged on the second wall hanging plate 1101. The first wall-hanging plate 101 and the second wall-hanging plate 1101 are identical in structure, the wireless audio and video receiver 11 and the wireless audio and video transmitter 1 can be respectively fixed on the wall by arranging the first wall-hanging plate 101 and the second wall-hanging plate 1101, and the use space of a daily desktop is saved.

The transmitter housing 2 is provided with a first infrared interface 8 and the receiver housing 12 is provided with a second infrared interface 20. The infrared interface can remotely control content switching, startup and shutdown and other operations by using a remote controller of the signal source equipment.

Compared with the prior art, the utility model provides a wireless audio and video signal transmission extender, cancel external antenna, adopt the wireless system of built-in hidden 5G frequency channel, wireless received signal is more stable, simultaneously, based on 5GHz frequency channel, use the 40MHz passageway, transmission rate is up to 3 Gbps; the lossless and non-compressed 1080P @60HZ original film (True Cinema) is transmitted in real time in a wireless mode, and delay is avoided (the delay is less than 1 millisecond), so that the transmission image quality is clearer and more stable.

It is obvious to a person skilled in the art that the invention is not restricted to details of the foregoing exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A wireless audio and video signal transmission extender is characterized in that: the wireless audio and video transmitter comprises a transmitter shell and a built-in transmitter circuit mainboard, wherein the transmitter circuit mainboard comprises a first power module, an HDMI input interface, an IC decoder, a local loop-out interface and a first 5G wireless transceiver module, the HDMI input interface is connected with the first power module, and the IC decoder is respectively connected with the HDMI input interface, the local loop-out interface and the first 5G wireless transceiver module; the wireless audio and video receiver comprises a receiver shell and a built-in receiver circuit main board, wherein the receiver circuit main board comprises a second power module, an HDMI output interface, a level converter, an HDMI converter and a second 5G wireless transceiver module, the level converter is connected with the second power module, and the HDMI converter is respectively connected with the HDMI output interface, the level converter and the second 5G wireless transceiver module.

2. The wireless audio-video signal transmission extender of claim 1, wherein: the front end of the transmitter shell is provided with two indicator lights which are respectively a first power indicator light and a first signal connection indicator light.

3. The wireless audio-video signal transmission extender of claim 1, wherein: the front end of the receiver shell is provided with two indicator lights which are respectively a second power indicator light and a second signal connection indicator light.

4. The wireless audio-video signal transmission extender of claim 1, wherein: the transmitter and receiver housings are both rectangular in configuration.

5. The wireless audio-video signal transmission extender of claim 1, wherein: the left side and the right side of the transmitter shell are respectively provided with a first wall hanging plate, and the first wall hanging plates are provided with a plurality of first mounting holes.

6. The wireless audio-video signal transmission extender of claim 1, wherein: the left side and the right side of the receiver shell are respectively provided with a second wall hanging plate, and the second wall hanging plates are provided with a plurality of second mounting holes.

7. The wireless audio-video signal transmission extender of claim 1, wherein: the model of the IC decoder is Hi 3520D.

8. The wireless audio-video signal transmission extender of claim 1, wherein: the transmitter shell is provided with a first infrared interface, and the receiver shell is provided with a second infrared interface.