CN219780209U

CN219780209U - HDMI wireless extender

Info

Publication number: CN219780209U
Application number: CN202320524688.8U
Authority: CN
Inventors: 卿宇运
Original assignee: Shenzhen Operating Electronics Co ltd
Current assignee: Shenzhen Operating Electronics Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-09-29
Anticipated expiration: 2033-03-10

Abstract

The utility model relates to the technical field of infinite extenders, in particular to an HDMI wireless extender which comprises a transmitting device and a receiving device, wherein the transmitting device is used for being externally connected with host equipment and transmitting data of the host equipment to the receiving device in a wireless mode, the receiving device is used for being externally connected with playing equipment, the number of the receiving device is at least one, the transmitting device comprises a wireless module, a distribution module and an input module, the input module and the wireless module are connected with the distribution module, the wireless module is used for being in signal connection with the receiving device, and the distribution module is used for controlling the host equipment connected with the input module to carry out signal transmission with the corresponding receiving device according to instructions input by the input module. The transmitting device is provided with the distribution module for realizing data distribution and realizing the effect of playing a plurality of display devices by one host, thereby being more flexible to use.

Description

HDMI wireless extender

Technical Field

The utility model relates to the technical field of infinite extenders, in particular to an HDMI wireless extender.

Background

The wireless extender is a device for connecting a host with a display screen in a wireless transmission mode, and generally comprises a transmitting device and a receiving device, wherein the transmitting device is connected to the host, data transmitted by the host are transmitted to the receiving device in a WiFi or Bluetooth mode, and the receiving device sends the data to a display device or an audio device connected with the receiving device for playing, so that the effect of long-distance transmission is realized.

However, existing infinite extenders, which are generally one-to-one for data transmission, are difficult to implement when a match to one-to-many transmission is required, obviously resulting in reduced flexibility in data transmission.

Disclosure of Invention

The utility model provides an HDMI wireless extender aiming at the problems in the prior art, and the effect of one-to-many data transmission is realized through the arrangement of an allocation module.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an HDMI wireless extender, which comprises a transmitting device and a receiving device, wherein the transmitting device is used for being externally connected with host equipment and transmitting data of the host equipment to the receiving device in a wireless mode, the receiving device is used for being externally connected with playing equipment, the number of the receiving device is at least one, the transmitting device comprises a wireless module, a distribution module and an input module, the input module and the wireless module are both connected with the distribution module, the wireless module is used for being in signal connection with the receiving device, and the distribution module is used for controlling the host equipment connected with the input module to carry out signal transmission with the corresponding receiving device according to instructions input by the input module.

Further, the distribution module comprises a distribution chip U21, the model of the distribution chip U21 is IT6663, the thirty-sixth to thirty-eighth pins, the forty-third pins, the fifty-eighth pins and the sixty-third pins of the distribution chip U21 are connected with the HDMI input module, and the fourteenth to twelve pins, the twenty-fifth to twenty-eighth pins of the distribution chip U21 are connected with the HDMI signal module; the receiving device further comprises an HDMI interface, and the HDMI input module and the HDMI signal module are integrated in the HDMI interface.

Further, three logic modules are respectively arranged between the HDMI signal module and the distribution chip U21, and between the HDMI input module and the distribution chip U21.

Further, the distribution module further comprises a main control chip, the model of the main control chip is AM8270, and the main control chip is connected with the distribution chip U21.

Further, the wireless module comprises a wireless chip U6 and a wireless chip U7, the model of the wireless chip U6 is 8822BU, the model of the wireless chip U7 is 8821CU, the wireless chip U6 is connected with the wireless chip U7, and the wireless chip U6 is connected with the distribution module.

Further, the receiving device further comprises a power supply module, the power supply module comprises a power supply interface and a plurality of voltage stabilizing circuits, the power supply interface is connected with the plurality of voltage stabilizing circuits, the plurality of voltage stabilizing circuits are respectively connected to the distribution module, the wireless module and the input module, and the plurality of voltage stabilizing circuits are respectively used for stabilizing direct current of 5V to direct current of different voltage values.

The utility model has the beneficial effects that: the transmitting device is provided with the distribution module for realizing data distribution and realizing the effect of playing a plurality of display devices by one host, thereby being more flexible to use.

Drawings

Fig. 1 is a functional block diagram of a transmitting device of the present utility model.

Fig. 2 is a circuit diagram of a dispensing chip of the present utility model.

FIG. 3 is a partial peripheral circuit diagram of a dispensing chip of the present utility model.

FIG. 4 is a schematic diagram of another portion of a peripheral circuit of the dispensing chip of the present utility model.

Fig. 5 is a partial circuit diagram of a main control chip of the present utility model.

Fig. 6 is a circuit diagram of another part of the main control chip of the present utility model.

Fig. 7 is a circuit diagram of a wireless module of the present utility model.

Fig. 8 is a circuit diagram of the power supply module of the present utility model.

Reference numerals: 1-wireless module, 2-distribution module, 3-input module, 4-logic module, 5-power module, 6-voltage stabilizing circuit, 7-HDMI input module, 8-HDMI signal module, U8-A to U8-D-main control chip.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 8, the HDMI wireless extender provided by the present utility model includes a transmitting device and a receiving device, where the transmitting device is used for connecting with a host device and transmitting data of the host device to the receiving device in a wireless manner, the receiving device is used for connecting with a playing device, the number of the receiving device is at least one, the transmitting device includes a wireless module 1, a distribution module 2 and an input module 3, the input module 3 and the wireless module 1 are both connected with the distribution module 2, the wireless module 1 is used for connecting with the receiving device in a signal manner, and the distribution module 2 is used for controlling the host device connected with the input module 3 and the corresponding receiving device to perform signal transmission according to an instruction input by the input module 3.

Specifically, the utility model can process the data of a host device through the transmitting device, then transmit the processed data to the receiving device through the wireless module 1 in a Bluetooth or WiFi mode, and the receiving device transmits the signal to the corresponding display device or audio device; the utility model has the distribution module 2, so that the data transmitted by the host equipment can be simultaneously transmitted to the receiving devices for playing, thereby achieving the one-to-many transmission effect.

In this embodiment, the distribution module 2 includes a distribution chip U21, a model of the distribution chip U21 is IT6663, the thirty-sixth to thirty-eighth pins, the forty-third pin, the fifty-eighth pin and the sixty-third pin of the distribution chip U21 are connected to the HDMI input module 7, the fourteenth to twelve pins, the twenty-fifth to twenty-eighth pin of the distribution chip U21 are connected to the HDMI signal module 8; the receiving device further comprises an HDMI interface, and the HDMI input module 7 and the HDMI signal module 8 are integrated in the HDMI interface.

And the IT6663 is adopted as the distribution chip U21, and the distribution chip U21 acquires data from the HDMI input module 7 and the HDMI signal module 8, so that the timely processing and transmission of the data are ensured.

In this embodiment, three logic modules 4 are respectively disposed between the HDMI signal module 8 and the distribution chip U21, and between the HDMI input module 7 and the distribution chip U21.

In this embodiment, the distribution module 2 further includes a main control chip, where the model of the main control chip is AM8270, and the main control chip is connected to the distribution chip U21. The main control chip is mainly used for controlling the distribution chip U21 to execute related actions according to the instructions after identifying the instructions issued by the user, for example, switching one-to-one transmission to one-to-many transmission, switching to transmission with another receiving device and the like, so that the response speed is improved.

In this embodiment, the wireless module 1 includes a wireless chip U6 and a wireless chip U7, the model of the wireless chip U6 is 8822BU, the model of the wireless chip U7 is 8821CU, the wireless chip U6 is connected with the wireless chip U7, and the wireless chip U6 is connected with the allocation module 2.

Through wireless chip U6 and wireless chip U7 cooperation, can realize the transmission effect of longer distance for emitter and receiving arrangement also can carry out data transmission steadily when the distance is longer, have promoted the convenience of use.

In this embodiment, the receiving device further includes a power supply module 5, where the power supply module 5 includes a power supply interface and a plurality of voltage stabilizing circuits 6, the power supply interface is connected with the plurality of voltage stabilizing circuits 6, the plurality of voltage stabilizing circuits 6 are respectively connected to the distribution module 2, the wireless module 1 and the input module 3, and the plurality of voltage stabilizing circuits 6 are respectively used for stabilizing the direct current of 5V to the direct current of different voltage values.

Specifically, the voltage stabilizing circuit 6 provided by the utility model is provided with various voltage stabilizing circuits 6 such as 5V to 1.5V,5V to 1.05V,5V to 3.3V and the like, thereby realizing the effect of diversified power supply, ensuring that all elements work under rated voltage and ensuring safety.

The present utility model is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides a wireless extender of HDMI, includes emitter and receiver, and emitter is used for external host computer equipment and transmits the data of host computer equipment to receiver through wireless mode, and receiver is used for external playback devices, its characterized in that: the receiving device comprises at least one transmitting device, a receiving device and a receiving device, wherein the transmitting device comprises a wireless module, a distribution module and an input module, the input module and the wireless module are connected with the distribution module, the wireless module is used for being connected with the receiving device in a signal mode, and the distribution module is used for controlling host equipment connected with the input module to carry out signal transmission with the corresponding receiving device according to instructions input by the input module.

2. The HDMI wireless extender as recited in claim 1, wherein: the distribution module comprises a distribution chip U21, the model of the distribution chip U21 is IT6663, the thirty-sixth to thirty-eighth pins, the forty-third pins, the fifty-eighth pins and the sixty-third pins of the distribution chip U21 are connected with an HDMI input module, and the fourteenth to twelve pins and the twenty-fifth to twenty-eighth pins of the distribution chip U21 are connected with an HDMI signal module; the receiving device further comprises an HDMI interface, and the HDMI input module and the HDMI signal module are integrated in the HDMI interface.

3. The HDMI wireless extender as recited in claim 2, wherein: three logic modules are respectively arranged between the HDMI signal module and the distribution chip U21 and between the HDMI input module and the distribution chip U21.

4. The HDMI wireless extender as recited in claim 2, wherein: the distribution module further comprises a main control chip, the model of the main control chip is AM8270, and the main control chip is connected with the distribution chip U21.

5. The HDMI wireless extender as recited in claim 1, wherein: the wireless module comprises a wireless chip U6 and a wireless chip U7, the model of the wireless chip U6 is 8822BU, the model of the wireless chip U7 is 8821CU, the wireless chip U6 is connected with the wireless chip U7, and the wireless chip U6 is connected with the distribution module.

6. The HDMI wireless extender as recited in claim 1, wherein: the receiving device further comprises a power supply module, the power supply module comprises a power supply interface and a plurality of voltage stabilizing circuits, the power supply interface is connected with the plurality of voltage stabilizing circuits, the plurality of voltage stabilizing circuits are respectively connected to the distribution module, the wireless module and the input module, and the plurality of voltage stabilizing circuits are respectively used for stabilizing direct current of 5V to direct current of different voltage values.