CN212519201U

CN212519201U - Multi-signal transmission extender

Info

Publication number: CN212519201U
Application number: CN202021477854.6U
Authority: CN
Inventors: 邓勇辉
Original assignee: Shenzhen Langheng Tech Co ltd
Current assignee: Shenzhen Langheng Tech Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-02-09
Anticipated expiration: 2030-07-23

Abstract

The utility model relates to the field of communication technology, specifically disclose a many signal transmission lengthener that transferable multiple signal, the wiring degree of difficulty are low, including transmitter and receiver, the transmitter is including corresponding video input unit, USB input unit, IR input unit, serial ports input unit and the audio input unit that inserts and encode the signal of handling the outside main frame and sending, receives and compresses each unit coding information of transmitter and sends the coding information after compressing to the first CPU processing chip of output port. The receiver comprises an input port connected with the output port, a second CPU processing chip for receiving signals transmitted by the input port, a video output unit, a USB output unit, an IR output unit, a serial port output unit and an audio output unit, wherein the video output unit, the USB output unit, the IR output unit, the serial port output unit and the audio output unit are correspondingly used for restoring and processing the distributed signals of the second CPU processing chip and outputting instructions to the terminal equipment.

Description

Multi-signal transmission extender

Technical Field

The utility model relates to the field of communication technology, especially, relate to a many signal transmission lengthener.

Background

The HDMI transmission means a transmission mode of remotely transmitting an HDMI signal source to a remote display device, and particularly, the HDMI video extender with an HDMI loop-out interface is used to realize the conversion of signal transmission and reception. The HDMI KVM extender is an important type of the HDMI video extender, and is mainly used for prolonging a graphic workstation or a server with an HDMI interface and a USB interface to a remote place for user management and control, and is generally divided into a transmitting end and a receiving end, wherein the transmitting end and the receiving end of a common HDMI KVM extender all need a power adapter, the output capacity of the HDMI of the receiving end can reach 4K, the real-time transmission effect is good, and no delay problem occurs.

However, the signal kind that traditional HDMI KVM video extender transmissible is less, and the function is comparatively single, if still will transmit other multiple signals when transmitting the HDMI video, often need increase the equipment device, sets up the more transmission cable of quantity, has improved the use cost of HDMI video extender on the one hand, and on the other hand has still increased the wiring degree of difficulty of HDMI video extender, is unfavorable for promoting the installation of HDMI video extender and maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a multi-signal transmission extender which can transmit a plurality of signals and has low wiring difficulty for solving the technical problems of few types of transmission signals and high wiring difficulty.

A multi-signal transmission extender is characterized by comprising a transmitter for processing signals accessed by an external computer host and a receiver for restoring and processing the signals transmitted by the transmitter and outputting the signals to a terminal device.

The transmitter comprises a video input unit, a USB input unit, an IR input unit, a serial port input unit and an audio input unit which are correspondingly accessed and encode signals sent by the external computer host, and a first CPU processing chip which receives and compresses coding information of each unit of the transmitter and sends the compressed coding information to an output port.

The receiver comprises an input port connected with the output port through a single optical fiber/network cable, a second CPU processing chip for receiving and decompressing the signals transmitted by the input port, a video output unit, a USB output unit, an IR output unit, a serial port output unit and an audio output unit for correspondingly decoding and processing the decompressed signals distributed by the second CPU processing chip and outputting instructions to the terminal equipment.

And a first TCP/IP network module or/and a first optical fiber transceiver module matched with the output port is arranged in the transmitter, and a second TCP/IP network module or/and a second optical fiber transceiver module matched with the input port is arranged in the receiver.

And a driving chip for enhancing signals of each output unit is also arranged in the receiver.

In one embodiment, each input unit of the transmitter comprises an input interface and an input processing chip for coding and processing signals accessed by the corresponding input interface.

In one embodiment, each output unit of the receiver comprises an output processing chip for transmitting a signal by the second CPU processing chip in a corresponding decoding process and an output interface for receiving the signal of the corresponding output processing chip and outputting an instruction to the terminal device.

In one embodiment, the first CPU processing chip transmits a video signal to a local device through an HDMI ring-out interface provided therein.

In one embodiment, the input interface of the audio input unit further comprises a microphone input interface, and the output interface of the audio output unit further comprises a microphone output interface.

In one embodiment, the output port and the input port are RJ network ports or/and LC interfaces.

The multi-signal transmission extender of the utility model is implemented by respectively arranging the video input unit, the USB input unit, the IR input unit, the serial port input unit and the audio input unit on the transmitter and arranging the video output unit, the USB output unit, the IR output unit, the serial port output unit and the audio output unit on the receiver, can access the USB keyboard and mouse operation, the USB data transmission or the copy and the like while realizing the remote transmission of video, and realizes the remote two-way audio transmission; the device can transmit serial port signals and is used for remote control of the touch screen, the cradle head, the electronic whiteboard, the video matrix and other devices; the device such as DVD, set-top box and the like can be remotely controlled by IR infrared signals; namely, the utility model discloses a transmission of HDMI video, USB signal, two audio signal, two-way serial signals and infrared signal etc. can be realized to the extender, collects multiple functions in an organic whole, is favorable to reducing the use cost of equipment to reduce transmission cable's use amount, reduce its wiring degree of difficulty and promote installation and maintenance efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a multiple signal transmission extender according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a multiple signal transmission extender according to another embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1, the present invention provides a multi-signal transmission extender 10 capable of transmitting multiple signals and having low wiring difficulty, wherein the multi-signal transmission extender 10 includes a transmitter 100 for processing signals accessed from an external computer and a receiver 200 for restoring signals transmitted by the transmitter 100 and outputting the signals to a terminal device, the transmitter 100 and the receiver 200 are respectively integrally packaged in a box-like structure, and the integration of the device is improved while protecting each unit inside the transmitter 100 and the receiver 200. In one embodiment, the transmitter 100 and the receiver 200 have external DC sockets respectively for accessing an external power cable to get power.

The transmitter 100 includes a first CPU processing chip 110, a video input unit 120, a USB input unit 130, an IR input unit 140, a serial input unit 150, an audio input unit 160, which are connected to and encode signals sent from an external computer, and an output port 170 for receiving and transmitting encoded information compressed by the first CPU processing chip 110. Specifically, after receiving the unit encoding signals of the transmitter 100, the first CPU processing chip 110 compresses various encoding signals, for example, compresses at a high speed, so as to reduce the total volume and size of the signals, reduce the load and difficulty during signal transmission, thereby improving the signal transmission efficiency, reducing the delay problem occurring during the signal transmission process, and implementing real-time signal transmission. The first CPU processing chip 110 compresses the encoded signal, and then transmits the compressed encoded information to the output port 170, thereby implementing the operations of encoding and compressing the signal. It can be understood that the transmitter 100, while having the video input unit 120, may transmit the video signal, and process the input USB signal, IR infrared signal, serial signal, audio signal, etc. to expand the type and range of the information that can be transmitted by the extender 10, and improve the applicability of the extender 10 in different usage scenarios.

Referring to fig. 2, in an embodiment, each input unit of the transmitter 100 includes an input interface and an input processing chip for encoding and processing signals accessed from the corresponding input interface. Specifically, the transmitter 100 includes an HDMI input interface 121 for receiving a video signal, a video input processing chip 122 for coding and processing the video signal and feeding back the coding result to the first CPU processing chip 110, a USB input interface 131 for receiving a USB signal, a USB input processing chip 132 for processing and feeding back the USB signal, an IR input interface 141 for receiving an IR infrared signal, an IR input processing chip 142 for processing and feeding back the IR infrared signal, a serial input interface 151 for receiving a serial signal, a serial input processing chip 152 for processing and feeding back the serial signal, an audio input interface 161 for receiving an audio signal, and an audio input processing chip 162 for processing and feeding back the audio signal, each input interface receives a signal from an external computer host and transmits the signal to a corresponding input processing chip connected thereto for coding operation, to form a particular signal stream. Preferably, the USB input interface 131 supports USB2.0 signal input, the serial input interface 151 supports RS232 serial bidirectional transmission, and a USB2.0 data line can be plugged into the USB input interface 131 to connect to an external device, such as a keyboard, a mouse, a hard disk, or a file storage device, to implement data information transmission and selection control. By providing the serial port input unit 150, since the transmission of the serial port information is bidirectional, that is, the user can transmit signals to the terminal device at the receiver 200 through the transmitter 100, and can also transmit signals to the host computer of the transmitter 100 through the receiver 200, thereby realizing the bidirectional transmission of the serial port signals between different positions.

In one embodiment, the first CPU processing chip 110 transmits the video signal to the local device through the HDMI ring-out interface 180. In this way, during the use of the extender 10, the user can transmit the video information obtained from the first CPU processing chip 110 to the local device for playing or displaying output, etc. via the HDMI signal line connected to the HDMI ring-out interface 180 according to the actual requirement, so that the video signal input via the external computer host can be simultaneously transmitted to the remote terminal device connected to the receiver 200 and the local device connected to the HDMI ring-out interface 180, thereby realizing the multi-channel output of the video information of the external computer host.

The receiver 200 includes an input port 210 connected to the output port 170 via a single optical fiber/network cable 300, a second CPU processing chip 220 for receiving and decompressing signals transmitted from the input port 210, a video output unit 230 for correspondingly decoding and processing signals distributed by the second CPU processing chip 220 and outputting instructions to the terminal device, a USB output unit 240, an IR output unit 250, a serial output unit 260, and an audio output unit 270. The type of signal that can be transmitted by the optical fiber and the network cable is different, that is, the extender 10 can use different media for transmission, thereby ensuring the diversity of signal transmission. Further, the output port 170 and the input port 210 are RJ45 network ports or/and LC interfaces. That is, the transmitter 100 and the receiver 200 may be separately provided with an RJ45 network port or an LC interface, or may be provided with an RJ45 network port and an LC interface at the same time, so that a user can select an optical fiber or a network cable according to actual production.

In one embodiment, a first TCP/IP network module and/or a first optical fiber transceiver module is disposed in the transmitter 100 and mated with the output port 170, and a second TCP/IP network module and/or a second optical fiber transceiver module is disposed in the receiver 200 and mated with the input port 210. The first TCP/IP network module and the second TCP/IP network module are respectively configured to convert the signal compressed by the first CPU processing chip 110 into data that can be transmitted in the network cable and convert the data transmitted in the network cable into a signal that can be recognized by the second CPU processing chip 220 when the network cable is used to transmit the signal; the first optical fiber transceiver module and the second optical fiber transceiver module are respectively used for converting the signal compressed by the first CPU processing chip 110 into data capable of being transmitted in the optical fiber and converting the data transmitted in the optical fiber into a signal capable of being recognized by the second CPU processing chip 220 when the optical fiber is used for transmitting the signal.

It should be noted that the present invention can adopt a single optical fiber/network cable 300 to transmit signals between the transmitter 100 and the receiver 200, because the first CPU processing chip 110 in the transmitter 100 compresses various signals, the size and volume of the signals are greatly reduced, and the load during signal transmission is reduced. Thus, when the transmitter 100 and the receiver 200 are arranged at a long distance, the two realize signal transmission through a single network cable or an optical fiber, thereby avoiding the problems of difficult wiring of the extender 10, and possible wrong wiring and missed wiring caused by arrangement of a large number of redundant transmission lines, and the like, so as to improve the reliability of equipment use and reduce the difficulty of installation and maintenance thereof.

In an embodiment, each output unit of the receiver 200 includes an output processing chip for transmitting a signal by the second CPU processing chip 220 corresponding to the decoding process and an output interface for receiving the signal of the corresponding output processing chip and outputting an instruction to the terminal device. Specifically, the receiver 200 includes a video output processing chip 231 for receiving and decoding the video signal decompressed and classified by the second CPU processing chip 220, an HDMI output interface 232 for receiving and transmitting the decoded video signal to the terminal device, a USB output processing chip 241 for decoding and processing the USB signal, a USB output interface 242 for receiving and transmitting the decoded USB signal to the terminal device, an IR output processing chip 251 for decoding and processing the IR infrared signal, an IR output interface 252 for receiving and transmitting the decoded IR infrared signal to the terminal device, a serial output processing chip 261 for decoding and processing the serial signal, a serial output interface 262 for receiving and transmitting the decoded serial signal to the terminal device, an audio output processing chip 271 for decoding and processing the audio signal, and an audio output interface 272 for receiving and transmitting the decoded audio signal to the terminal device, each output processing chip decodes a predetermined signal stream transmitted by the transmitter 100, so that the signal content output by the output interface to the terminal device is respectively the same as the signal content accessed by the external computer host through the input interface, thereby ensuring the fidelity and reliability of signal transmission.

Further, in an embodiment, the receiver 200 includes a plurality of USB2.0 output interfaces, for example, the receiver 200 includes 4 USB2.0 output interfaces, so that the USB signals decoded by the USB output processing chip 241 can be accessed to a plurality of external USB devices, so that users of different terminal devices can obtain corresponding USB information.

Specifically, after receiving the signals accessed by the corresponding input interfaces, each input processing chip respectively encodes and converts each corresponding signal into network data, after receiving the network data, the first CPU processing chip 110 compresses and packages the network data and transmits the compressed network data to the first TCP/IP network module or the first optical fiber transceiver module, the first TCP/IP network module or the first optical fiber transceiver module is matched with the network cable or the optical fiber inserted at the output port 170 for transcoding, further transmits the network data to the second TCP/IP network module or the second optical fiber transceiver module matched with the input port 210 to form signals which can be identified by the second CPU processing chip 220, the second CPU processing chip 220 identifies and decompresses the signals, and then classifies and distributes the different types of signals to the corresponding output processing chips for decoding, thus forming a signal which can be identified by the terminal equipment and displaying or playing the signal. For example, the HDMI output interface 232 is connected to a display through a video cable, the USB output interface 242 is connected to a USB external device, such as a hard disk, through the USB2.0 connection line 52, the IR output interface 252 is connected to an external infrared remote control device through an infrared probe, the serial output interface 262 is connected to a serial external device through a serial cable, the audio output interface 272 is connected to a speaker through an audio cable, and the microphone output interface 273 is connected to a microphone through another audio cable, so that the display of the host computer signal on the remote terminal is realized.

In one embodiment, the input interface of the audio input unit 160 further comprises a microphone input interface 163. Likewise, the output interface of audio output unit 270 also includes a microphone output interface 273. That is, audio information preset in the external computer main unit may be input in the transmitter 100, and real-time audio information may also be input via the microphone device, so that, when the audio input unit 160 of the transmitter 100 accesses the preset audio information only via the audio input interface 161, transmission of predetermined audio information is achieved; when the audio input unit 160 of the transmitter 100 accesses real-time audio information via the microphone input interface 163, the extender 10 acts as a microphone to facilitate a user at a greater distance to obtain audio information originating from a local user.

In one embodiment, the receiver 200 is further provided with a driving chip 280 for enhancing signals of each output unit, so as to reduce signal attenuation and loss, ensure that signals output to the terminal device are the same as signals input by the original external computer host, and improve the reliability of signal transmission of the extender 10.

Implement the utility model discloses a many signal transmission extender 10, through set up video input unit 120, USB input unit 130, IR input unit 140, serial ports input unit 150 and audio input unit 160 on transmitter 100 respectively, set up video output unit 230, USB output unit 240, IR output unit 250, serial ports output unit 260 and audio output unit 270 on receiver 200, when realizing the long-distance transmission video, can access USB key mouse operation, USB data transmission or copy etc. realize long-distance two-way audio transmission; the device can transmit serial port signals and is used for remote control of the touch screen, the cradle head, the electronic whiteboard, the video matrix and other devices; the infrared remote control of the external computer host can be realized by utilizing IR infrared signals to DVD, set-top boxes and other equipment; namely, the utility model discloses a transmission of HDMI video, USB signal, two-way audio signal, two-way serial signals and infrared signal etc. can be realized to extender 10, collects multiple functions in an organic whole, compares in the more single equipment of traditional HDMI extender 10 transmission signal, greatly reduced equipment engineering cost to reduce transmission cable's use amount, reduce its wiring degree of difficulty and promote installation and maintenance efficiency.

The utility model discloses an extender 10 can put the main frame of being connected with transmitter 100 in the computer lab, realizes the centralized management of main frame, and convenience of customers is favorable to promoting its application in fields such as video advertisement, projection integration, concatenation large-size screen, multimedia information issue, security protection control, home entertainment, exhibition show, video education.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A multiple signal transmission extender comprising a transmitter (100) for processing signals accessed by an external computer host and a receiver (200) for restoring signals delivered by said transmitter (100) and outputting said signals to a terminal device,

the transmitter (100) comprises a video input unit (120), a USB input unit (130), an IR input unit (140), a serial port input unit (150) and an audio input unit (160) which are correspondingly accessed and encode signals sent by the external computer host, and a first CPU processing chip (110) which receives and compresses coding information of each unit of the transmitter (100) and sends the compressed coding information to an output port (170);

the receiver (200) comprises an input port (210) connected with the output port (170) through a single optical fiber/network cable (300), a second CPU processing chip (220) for receiving and decompressing the signal transmitted by the input port (210), a video output unit (230), a USB output unit (240), an IR output unit (250), a serial output unit (260) and an audio output unit (270) for correspondingly decoding and processing the decompressed signal distributed by the second CPU processing chip (220) and outputting an instruction to the terminal equipment;

a first TCP/IP network module or/and a first optical fiber transceiver module matched with the output port (170) are arranged in the transmitter (100), and a second TCP/IP network module or/and a second optical fiber transceiver module matched with the input port (210) are arranged in the receiver (200);

and a driving chip (280) for enhancing signals of each output unit is also arranged in the receiver (200).

2. The multiple signal transmission extender as claimed in claim 1, wherein each input unit of the transmitter (100) comprises an input interface and an input processing chip for coding signals accessed by the corresponding input interface.

3. The multiple signal transmission extender as claimed in claim 2, wherein each output unit of the receiver (200) comprises an output processing chip for delivering a signal by the second CPU processing chip (220) corresponding to the decoding process and an output interface for receiving the signal of the corresponding output processing chip and outputting an instruction to the terminal device.

4. The multi-signal transmission extender as claimed in claim 3, wherein the first CPU processing chip (110) transmits a video signal to a local device through an HDMI loop-out interface (180) provided.

5. The multiple signal transmission extender of claim 3, wherein the input interface of the audio input unit (160) further comprises a microphone input interface (163), and the output interface of the audio output unit (270) further comprises a microphone output interface (273).

6. The multiple signal transmission extender of any one of claims 1 to 5, wherein the output port (170) and the input port (210) are RJ45 net ports or/and LC interfaces.