CN209823896U - Video transmission device - Google Patents
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- CN209823896U CN209823896U CN201921177964.8U CN201921177964U CN209823896U CN 209823896 U CN209823896 U CN 209823896U CN 201921177964 U CN201921177964 U CN 201921177964U CN 209823896 U CN209823896 U CN 209823896U
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Abstract
The utility model provides a pair of video transmission device, include: the multi-channel input interface is used for receiving multi-channel video signals, wherein the multi-channel input interface comprises at least two input interfaces; the mixed decoding distribution module is used for converting the multi-channel video signals into multi-channel differential signals; the encoding module is used for converting the multi-path differential signals into multi-path network port signals; the network interface extension module is used for extending the transmission distance of the multi-channel network port signals; the multi-path input interface is connected with the hybrid decoding distribution module, the hybrid decoding distribution module is connected with the coding module, and the coding module is connected with the extension network interface module. The utility model discloses multiple type input interface has been set up, mixed the input signal that the distribution module of decoding handled the multiple input interface that corresponds to and through the transmission distance of extension network interface module extension signal, make video transmission device can support the multichannel signal transmission of multiple interface, and remote transmission.
Description
Technical Field
The utility model relates to a video processing field, in particular to video transmission device.
Background
Currently, a video signal corresponds to a monitor or a video recorder, and a video transmission device, such as a video distributor, can send a video signal to a plurality of output devices. The existing video distributor mostly adopts interfaces such as HDMI and DVI, the Chinese meaning of HDMI (high Definition Multimedia Interface cable) is a high Definition Multimedia Interface, and the Chinese meaning of DVI (digital Visual Interface) is a digital video Interface. Most current video distributor often can only realize the input of an HDMI signal or DVI signal, a plurality of signal output to the DVI interface, need special DVI distributor, to the HDMI interface, need special HDMI distributor, but present video display device is more and more, if set up many different interfaces, then need dispose different distributors, it is very inconvenient in-service use, the video distributor that only supports an input interface can't satisfy user's needs.
Thus, there is a need for improvements and enhancements in the art.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a video transmission device supporting multiple types of input interfaces, which can satisfy the video display devices with multiple interfaces.
In order to achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a video transmission device, include:
the multi-channel input interface is used for receiving multi-channel video signals, wherein the multi-channel input interface comprises at least two input interfaces;
the mixed decoding distribution module is used for converting the multi-channel video signals into multi-channel differential signals;
the coding module is used for converting the multi-path differential signals into multi-path network port signals;
the network interface extension module is used for extending the transmission distance of the multi-channel network port signals;
the multi-path input interface is connected with the hybrid decoding distribution module, the hybrid decoding distribution module is connected with the coding module, and the coding module is connected with the extension network interface module. The embodiment of the utility model provides an in, set up polytype input interface, mix and decode the input signal that the distribution module can handle corresponding multiple input interface to and through the transmission distance of extension network interface module extension signal, make the utility model provides a video transmission device can support the multichannel signal transmission who is applicable to multiple interface, and remote transmission.
As a further improved technical solution, the multi-path input interface includes:
HDMI input interface, VGA input interface, DP input interface and DVI input interface.
As a further improved technical solution, the hybrid decoding allocation module includes: the system comprises a processor, a DDR chip and a plurality of video input switches, wherein the processor is a Haisi HI3531A chip;
the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals;
the Haesi HI3531A chip is connected with the DDR chip, and the Haesi HI3531A chip is respectively connected with a plurality of video input switches.
As a further improved technical solution, the encoding module includes: a plurality of the encoding modules includes: a plurality of Ethernet transceiving units and a plurality of network port voltage transformation units; the Ethernet transceiver unit is used for converting the multi-path differential signals into multi-path coded signals, and the network port voltage transformation unit is used for converting the multi-path coded signals into multi-path network port signals; the Ethernet transceiving unit is connected with the network port voltage transformation unit.
As a further improved technical solution, the ethernet transceiver unit includes an ethernet transceiver chip, a first inductor, a second inductor, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, and a fifth capacitor, and the ethernet transceiver chip is an IP101CR chip;
the ISET end of the IP101CR chip is connected with one end of the first resistor, and the REGOUT end of the IP101CR chip is respectively connected with one end of the first capacitor and one end of the second capacitor;
an AVDD33 terminal of the IP101CR is respectively connected with one end of the first inductor, one end of the third capacitor and one end of the fourth capacitor;
the VDD-IO end of the IP101CR chip is connected with one end of the second inductor and one end of the fifth capacitor respectively, and the LED3/PHY end of the IP101CR chip is connected with one end of the second resistor;
the LED0/PHY end of the IP101CR chip is connected with one end of the third resistor;
the other end of the first resistor is grounded, the other end of the first capacitor is grounded, the other end of the second capacitor is grounded, the other end of the third capacitor is grounded, the other end of the fourth capacitor is grounded, the other end of the second resistor is grounded, the other end of the third resistor is grounded, the other end of the fifth capacitor is grounded, the other end of the first inductor is connected with a direct-current power supply, and the other end of the second inductor is connected with a direct-current VDD power supply.
As a further improved technical scheme, the network port voltage transformation unit comprises a transformer, a sixth capacitor and a seventh capacitor, wherein the transformer is a TS21C chip;
the CT1 end of the TS21C chip is connected with one end of the sixth capacitor, the CT2 end of the TS21C chip is connected with one end of the seventh capacitor, the other end of the sixth capacitor is grounded, the other end of the seventh capacitor is grounded, the RD + end of the TS21C chip is connected with the MDI-RP end of the IP101CR chip, the RD-end of the TS21C chip is connected with the MDI-RN end of the IP101CR chip, the TD + end of the TS21C chip is connected with the MDI-TP end of the IP101CR chip, and the TD-end of the TS21C chip is connected with the MDI-TN end of the IP101CR chip.
As a further improved technical solution, the extension network interface module includes: a plurality of RJ45 interface units, the RJ45 interface unit comprising: an RJ45 interface, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth capacitor and a ninth capacitor;
the TX + end of the RJ45 interface is connected with the RX + end of the TS21C chip, the TX-end of the RJ45 interface is connected with the RX-end of the TS21C chip, the RX + end of the RJ45 interface is connected with the TX + end of the TS21C chip, the RX-end of the RJ45 interface is connected with the TX-end of the TS21C chip, the N/C1 end of the RJ45 interface is connected with one end of the sixth resistor, the N/C2 end of the RJ45 interface is connected with one end of the sixth resistor, the N/C3 end of the RJ45 interface is connected with one end of the seventh resistor, the N/C4 end of the RJ45 interface is connected with one end of the seventh resistor, the CG1 end and the CG2 end of the RJ45 interface are grounded, one end of the fifth resistor is connected with one end of the fourth resistor, the other end of the sixth resistor, the other end of the seventh resistor and one end of the eighth capacitor respectively, the other end of the fifth resistor is connected with the CMT1 end of the TS21C chip, the other end of the fourth resistor is connected with the CMT2 end of the TS21C chip, and the other end of the eighth capacitor is grounded.
As a further improved technical solution, the video transmission apparatus further includes: the power module is used for supplying power to the hybrid decoding distribution module and the coding module, and the power module is respectively connected with the hybrid decoding distribution module and the coding module.
Compared with the prior art, the utility model provides a video transmission device, include: a multi-channel input interface for transmitting multi-channel video signals; the mixed decoding distribution module is used for converting the multi-channel video signals into multi-channel differential signals; the coding module is used for converting the multi-path differential signals into multi-path network port signals; the extension network interface module is used for extending the multi-path network port signals; the multi-path input interface is connected with the hybrid decoding distribution module, the hybrid decoding distribution module is connected with the coding module, and the coding module is connected with the extension network interface. The embodiment of the utility model provides an in, set up polytype input interface, mix and decode the input signal that the distribution module can handle corresponding multiple input interface to and through the transmission distance of extension network interface module extension signal, make the utility model provides a video transmission device can prop up the multichannel signal transmission who is applicable to multiple interface, and remote transmission.
Drawings
Fig. 1 is a structural diagram of a video transmission apparatus provided by the present invention;
fig. 2 is a circuit diagram of an ethernet transceiver unit according to the present invention;
fig. 3 is a circuit diagram of the network port voltage transformation unit and the RJ45 interface unit provided by the present invention.
Detailed Description
The utility model provides a video transmission device, in the embodiment of the utility model provides an in, set up polytype input interface, mix and decode the input signal that the distribution module can handle corresponding multiple input interface to and through the transmission distance of extension network interface module extension multichannel signal, make the utility model provides a video transmission device can support the multichannel signal transmission who is applicable to multiple interface, and remote transmission.
The present invention is described in more detail in order to facilitate the explanation of the technical idea, the technical problem solved, the technical features of the technical solution, and the technical effects brought by the present invention. The description of the embodiments is not intended to limit the scope of the present invention. Further, the technical features of the embodiments described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the present invention provides a video transmission device, which includes a multi-channel input interface 100 for receiving multi-channel video signals, wherein the multi-channel input interface includes at least two input interfaces; a hybrid decoding distribution module 200 for converting the multiple video signals into multiple differential signals; the encoding module 300 is used for converting the multi-path differential signals into multi-path network port signals; an extension network interface module 400 for extending the transmission distance of the multi-path network port signal; the multi-channel input interface 100 is connected to the hybrid decoding distribution module 200, the hybrid decoding distribution module 200 is connected to the encoding module 300, and the encoding module 300 is connected to the extended network interface module 400.
In this embodiment, multichannel input interface 100 includes multiple type input interface, mixes to decode distribution module 200 and can handle the input signal who corresponds multiple input interface, through the transmission distance of extension network interface module 400 extension each way net gape signal, makes the utility model provides a video transmission device can support multichannel signal input and the remote transmission who is applicable to multiple interface.
In a specific implementation, there are multiple video display devices, and the interfaces of the multiple video display devices are different, for example, the interfaces supporting HDMI, VGA, DP, and DVI. The prior art needs the distributor that corresponds to the video display device special configuration of different interfaces, the utility model discloses can be with the video signal input of gathering to multichannel input interface in, multichannel input interface includes: HDMI input interface, VGA input interface, DP input interface and DVI input interface. Then the utility model discloses a video transmission device combines distributors such as DP distributor, HDMI distributor, VGA distributor and DVI distributor to be applicable to occasions that need a plurality of video display equipment such as big meeting room, multi-functional room, the utility model provides a video transmission device can support the display device of different interfaces, thereby resources are saved.
In this embodiment, the hybrid decoding distribution module 200 includes a processor, a DDR chip and a video input switch, where the processor is a haisi HI3531A chip; the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals; the Haesi HI3531A chip is connected with the DDR chip, and the Haesi HI3531A chip is respectively connected with a plurality of video input switches.
In this embodiment, the haisi HI3531A chip may be replaced by a haisi HI3520A chip, a microscopical RK3288 chip, and a RK3399 chip.
In this embodiment, the DDR chip is a double-data-rate synchronous dynamic random access memory, which is one type of memory, in this embodiment, the model of the DDR chip is preferably HY5PS1G1631, where HY represents modern, 5P represents the DDR memory, S represents 1.8V working voltage, 1G represents that the chip capacity is 1GB, 16 represents the bit width, 3 represents the number of logic banks, and 1 represents that the interface type is SST _ 2.
The embodiment of the utility model provides an in, the video signal input haisi HI3531A chip of transmission among each input interface, haisi HI3531A chip deposit the differential signal after the distribution processing of code in the DDR chip, when detecting that the rear end has connected a plurality of video display wares that support different interfaces, then haisi HI3531A chip output and the multichannel differential signal that each interface of a plurality of video display wares of different interfaces corresponds to coding module 300.
In this embodiment, the video input switch may select the SN74CB series of I/O channel switches, which is a high bandwidth FET bus switch. When the Haesi HI3520A chip detects that a plurality of video displays supporting different interfaces are connected at the rear end, differential signals corresponding to the plurality of video displays of different interfaces are controlled and output through the video input switch.
In this embodiment, the encoding module 300 converts the multiple differential signals into multiple network port signals. The encoding module 300 includes: the system comprises a plurality of Ethernet transceiving units 301 and a plurality of network port voltage transformation units 302, wherein the Ethernet transceiving units 301 are used for converting multi-path differential signals into multi-path coded signals, and the network port voltage transformation units 302 are used for converting the multi-path coded signals into multi-path network port signals; the ethernet transceiving unit 301 is connected to the port transformer unit 302.
In this embodiment, the number of the ethernet transceiving units may be N, where N is an integer, and the number of the network port voltage transformation units may be N, where N is an integer, and similarly, the number of the network port voltage transformation units may be N, where N is an integer; the number of the Ethernet transceiving units is the same as that of the network port voltage transformation units, the number of the Ethernet transceiving units is at least equal to that of the multi-path input interfaces, and the number of the Ethernet transceiving units is at least equal to that of the plurality of video displays of different interfaces.
For example, the multi-input interface includes: the mixed decoding distribution module can output four paths of differential signals corresponding to the four interfaces respectively, so that at least four Ethernet transceiving units are needed to process the four paths of differential signals respectively to obtain a multi-path coding signal, and similarly, at least four network port voltage transformation units are needed to convert the multi-path coding signal into a multi-path network port signal.
Referring to fig. 2, this embodiment uses a group of ethernet transceiving units and a network port voltage transformation unit as an example to illustrate the internal circuit structure thereof, and the circuit structures of the other groups of ethernet transceiving units and the network port voltage transformation unit are the same as the group, except that the input signal is a video supporting different types of interfaces. The ethernet transceiving unit 301 comprises an ethernet transceiving chip U1, a first inductor L1, a second inductor L2, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5, wherein the ethernet transceiving chip is an IP101CR chip.
The embodiment of the utility model provides an in, IP101CR chip good reliability, energy-conservation, operating current is low, uses 5 grades of unshielded twisted pair or fiber cable to be connected to other LAN equipment.
An ISET end of the IP101CR chip U1 is connected with one end of the first resistor R1, and a REGOUT end of the IP101CR chip is respectively connected with one end of the first capacitor C1 and one end of the second capacitor C2; the AVDD33 terminal of the IP101CR is connected with one end of the first inductor L1, one end of the third capacitor C3 and one end of the fourth capacitor C4; the VDD-IO terminal of the IP101CR chip is connected with one end of the second inductor L2 and one end of the fifth capacitor C5; the LED3/PHY end of the IP101CR chip is connected with one end of the second resistor R2; the LED0/PHY end of the IP101CR chip is connected with one end of the third resistor R3; the other end of the first resistor R1 is grounded, the other end of the first capacitor C1 is grounded, the other end of the second capacitor C2 is grounded, the other end of the third capacitor C3 is grounded, the other end of the fourth capacitor C4 is grounded, the other end of the second resistor R2 is grounded, the other end of the third resistor R3 is grounded, the other end of the fifth capacitor C5 is grounded, the other end of the first inductor L1 is connected with a 3.3V dc power supply V1, and the other end of the second inductor L2 is connected with a dc VDD power supply.
The IP101CR chip U1 is used for converting the differential signal obtained by the Haisi HI3531A chip into an encoding signal. The RESET end, the TXEN end, the TXD0 end, the TXD1 end, the TXD2 end, the RXD0 end, the RXD1 end and the CLK1 end of the IP101CR chip U1 are connected with an I/O port of the Haisi HI3531A chip.
The ISET end of the IP101CR chip is used for setting a maximum current, the maximum current can be set by changing the resistance value of a first resistor R1, the MDI-RN end and the MDI-RP end of the IP101CR chip are differential signal receiving input pairs, the MDI-TP end and the MDI-TN end of the IP101CR chip are differential signal transmitting output pairs, the REGOUT end of the IP101CR chip is a power output, the AVDD33 end of the IP101CR chip is a 3.3V power interface, the LED0/PHY end and the LED3/PHY end of the IP101CR chip are connected with an external LED lamp, and the LED lamp flickers when data is activated or received.
In the embodiment of the present invention, the MDI-RN end, the MDI-RP end, the MDI-TP end, and the MDI-TN end of the IP101CR chip are connected to the network port voltage transformation unit.
Referring to fig. 3, the network interface transformer unit 302 includes a TS21C chip U2, a sixth capacitor C6, and a seventh capacitor C7; the CT1 end of the TS21C chip U2 is connected with one end of the sixth capacitor C6, the CT2 end of the TS21C chip is connected with one end of the seventh capacitor C7, the other end of the sixth capacitor C6 is connected with the other end of the seventh capacitor C7 and the ground, the RD + end of the TS21C chip is connected with the MDI-RP end of the IP101CR chip, the RD-end of the TS21C chip is connected with the MDI-RN end of the IP101CR chip, the TD + end of the TS21C chip is connected with the MDI-TP end of the IP101CR chip, and the TD-end of the TS21C chip is connected with the MDI-TN end of the IP101CR chip. And the RX + end, the RX-end, the TX + end and the TX-end of the TS21C chip are all connected with an RJ45 interface unit.
The network port voltage transformation unit 302 is configured to convert the encoded signal output by the ethernet transceiving unit 301 into a network port data signal, where the network port data signal is adapted to be transmitted by the back-end extended network interface module 400.
Please refer to fig. 3, in an embodiment of the present invention, the extension network interface module 400 adopts an RJ45 interface unit 401 to extend the transmission distance of the video transmission apparatus, and the extension network interface module 400 includes: in the embodiment, one RJ45 interface unit is taken as an example to illustrate the internal circuit structure of the RJ45 interface units 401, and the circuit structures of other RJ45 interface units are the same, except that the input and output signals are different. The RJ45 interface unit 401 includes: an RJ45 interface J1, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth capacitor R8, and a ninth capacitor R9.
The TX + end of the RJ45 interface J1 is connected with the RX + end of the TS21C chip, the TX-end of the RJ45 interface is connected with the RX-end of the TS21C chip, the RX + end of the RJ45 interface 401 is connected with the TX + end of the TS21C chip, the RX-end of the RJ45 interface is connected with the TX-end of the TS21C chip, the N/C1 end of the RJ45 interface is connected with one end of the sixth resistor R6, the N/C2 end of the RJ45 interface is connected with one end of the sixth resistor R6, the N/C3 end of the RJ45 interface is connected with one end of the seventh resistor R7, the N/C4 end of the RJ45 interface is connected with one end of the seventh resistor R7, and the CG1 end and the CG2 end of the RJ45 interface are grounded; one end of the fifth resistor R5 is connected to one end of the fourth resistor R4, the other end of the sixth resistor R6, the other end of the seventh resistor R7 and one end of the eighth capacitor C8; the other end of the fifth resistor R5 is connected with the CMT1 end of the TS21C chip, the other end of the fourth resistor R4 is connected with the CMT2 end of the TS21C chip, and the other end of the eighth capacitor R8 is grounded.
Only one RJ45 interface is shown in fig. 3, and in the implementation, the number of RJ45 interfaces should be greater than or equal to the number of video playback devices at the back end. Similarly, the number of the coding module network port voltage transformation units and the number of the ethernet transceiving units should be respectively greater than or equal to the number of the video playing devices at the back end, and the number of each interface in the multi-path input interfaces should also be greater than or equal to the number of the playing devices at each interface in the video playing devices at the back end.
In the embodiment of the present invention, the video transmission device further includes: and the power supply module is used for supplying power to the hybrid decoding distribution module and the coding module. The power module can select a suitable power module on the market, can supply power to the hybrid decoding distribution module and the coding module, and is respectively connected with the hybrid decoding distribution module and the coding module. Which is prior art and will not be described herein.
For example, the video display has a first DVI display, a second DVI display, a first DP display, a second DP display, a first HDMI display, a second HDMI display, and a third HDMI display; correspondingly, the multi-path input interface at least comprises a first DVI input interface, a second DVI input interface, a first DP input interface, a second DP input interface, a first HDMI input interface, a second HDMI input interface and a third HDMI input interface; the multi-path input interface is connected with a Haesi HI3531A chip, and the Haesi HI3531A chip is used for decoding and distributing input video signals to obtain multi-path differential signals, wherein the multi-path differential signals comprise: a first DVI differential signal, a second DVI differential signal, a first DP differential signal, a second DP differential signal, a first HDMI differential signal, a second HDMI differential signal, and a third HDMI differential signal; inputting the multi-path differential signal into a coding module, and obtaining a multi-path coding signal through an Ethernet transceiving unit in the coding module, wherein the coding module comprises: the first DVI coded signal, the second DVI coded signal, the first DP coded signal, the second DP coded signal, the first HDMI coded signal, the second HDMI coded signal and the third HDMI coded signal; the multi-channel coding signal passes through a network port voltage transformation unit to obtain a multi-channel network port signal suitable for network cable transmission, and similarly, the multi-channel network port signal comprises: a first DVI port signal, a second DVI port signal, a first DP port signal, a second DP port signal, a first HDMI port signal, a second HDMI port signal and a third HDMI port signal; and inputting the network port signals into corresponding RJ45 interfaces, and transmitting the signals to the video playing equipment at the rear end through a network cable, so that the synchronous transmission of the multiple paths of video signals can be realized.
To sum up, the utility model provides a pair of video transmission device, include: a multi-channel input interface for transmitting multi-channel video signals; the mixed decoding distribution module is used for converting the multi-channel video signals into multi-channel differential signals; the coding module is used for converting the multi-path differential signals into multi-path network port signals; the extension network interface module is used for extending the multi-path network port signals; the multi-path input interface is connected with the hybrid decoding distribution module, the hybrid decoding distribution module is connected with the coding module, and the coding module is connected with the extension network interface. The embodiment of the utility model provides an in, set up polytype input interface, mix and decode the input signal that the distribution module can handle corresponding multiple input interface to and through the transmission distance of extension network interface module extension signal, make the utility model provides a video transmission device can support the multichannel signal transmission who is applicable to multiple interface, and remote transmission.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (8)
1. A video transmission apparatus, comprising:
the multi-channel input interface is used for receiving multi-channel video signals, wherein the multi-channel input interface comprises at least two input interfaces;
the mixed decoding distribution module is used for converting the multi-channel video signals into multi-channel differential signals;
the coding module is used for converting the multi-path differential signals into multi-path network port signals;
the network interface extension module is used for extending the transmission distance of the multi-channel network port signals;
the multi-path input interface is connected with the hybrid decoding distribution module, the hybrid decoding distribution module is connected with the coding module, and the coding module is connected with the extension network interface module.
2. The video transmission apparatus according to claim 1, wherein the multiple input interface comprises:
HDMI input interface, VGA input interface, DP input interface and DVI input interface.
3. The video transmission apparatus according to claim 1, wherein the hybrid decoding assignment module comprises: the system comprises a processor, a DDR chip and a plurality of video input switches, wherein the processor is a Haisi HI3531A chip;
the DDR chip is used for storing data, and the video input switches are used for controlling and outputting multi-path differential signals;
the Haesi HI3531A chip is connected with the DDR chip, and the Haesi HI3531A chip is respectively connected with a plurality of video input switches.
4. The video transmission apparatus according to claim 1, wherein the encoding module comprises: a plurality of Ethernet transceiving units and a plurality of network port voltage transformation units; the Ethernet transceiver unit is used for converting the multi-path differential signals into multi-path coded signals, and the network port voltage transformation unit is used for converting the multi-path coded signals into multi-path network port signals; the Ethernet transceiving unit is connected with the network port voltage transformation unit.
5. The video transmission device according to claim 4, wherein the ethernet transceiver unit comprises an ethernet transceiver chip, a first inductor, a second inductor, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor and a fifth capacitor, and the ethernet transceiver chip is an IP101CR chip;
the ISET end of the IP101CR chip is connected with one end of the first resistor, and the REGOUT end of the IP101CR chip is respectively connected with one end of the first capacitor and one end of the second capacitor;
an AVDD33 terminal of the IP101CR is respectively connected with one end of the first inductor, one end of the third capacitor and one end of the fourth capacitor;
the VDD-IO end of the IP101CR chip is connected with one end of the second inductor and one end of the fifth capacitor respectively, and the LED3/PHY end of the IP101CR chip is connected with one end of the second resistor;
the LED0/PHY end of the IP101CR chip is connected with one end of the third resistor;
the other end of the first resistor is grounded, the other end of the first capacitor is grounded, the other end of the second capacitor is grounded, the other end of the third capacitor is grounded, the other end of the fourth capacitor is grounded, the other end of the second resistor is grounded, the other end of the third resistor is grounded, the other end of the fifth capacitor is grounded, the other end of the first inductor is connected with a direct-current power supply, and the other end of the second inductor is connected with a direct-current VDD power supply.
6. The video transmission device according to claim 5, wherein the network port transforming unit comprises a transformer, a sixth capacitor and a seventh capacitor, and the transformer is a TS21C chip;
the CT1 end of the TS21C chip is connected with one end of the sixth capacitor, the CT2 end of the TS21C chip is connected with one end of the seventh capacitor, the other end of the sixth capacitor is grounded, the other end of the seventh capacitor is grounded, the RD + end of the TS21C chip is connected with the MDI-RP end of the IP101CR chip, the RD-end of the TS21C chip is connected with the MDI-RN end of the IP101CR chip, the TD + end of the TS21C chip is connected with the MDI-TP end of the IP101CR chip, and the TD-end of the TS21C chip is connected with the MDI-TN end of the IP101CR chip.
7. The video transmission apparatus according to claim 6, wherein the extended network interface module comprises: a plurality of RJ45 interface units, the RJ45 interface unit comprising: an RJ45 interface, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth capacitor and a ninth capacitor;
the TX + end of the RJ45 interface is connected with the RX + end of the TS21C chip, the TX-end of the RJ45 interface is connected with the RX-end of the TS21C chip, the RX + end of the RJ45 interface is connected with the TX + end of the TS21C chip, the RX-end of the RJ45 interface is connected with the TX-end of the TS21C chip, the N/C1 end of the RJ45 interface is connected with one end of the sixth resistor, the N/C2 end of the RJ45 interface is connected with one end of the sixth resistor, the N/C3 end of the RJ45 interface is connected with one end of the seventh resistor, the N/C4 end of the RJ45 interface is connected with one end of the seventh resistor, the CG1 end and the CG2 end of the RJ45 interface are grounded, one end of the fifth resistor is connected with one end of the fourth resistor, the other end of the sixth resistor, the other end of the seventh resistor and one end of the eighth capacitor respectively, the other end of the fifth resistor is connected with the CMT1 end of the TS21C chip, the other end of the fourth resistor is connected with the CMT2 end of the TS21C chip, and the other end of the eighth capacitor is grounded.
8. The video transmission apparatus according to claim 1, wherein the video transmission apparatus further comprises: the power module is used for supplying power to the hybrid decoding distribution module and the coding module, and the power module is respectively connected with the hybrid decoding distribution module and the coding module.
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| CN201921177964.8U CN209823896U (en) | 2019-07-24 | 2019-07-24 | Video transmission device |
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| CN201921177964.8U CN209823896U (en) | 2019-07-24 | 2019-07-24 | Video transmission device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115296687A (en) * | 2022-08-08 | 2022-11-04 | 慷智集成电路(上海)有限公司 | Full-duplex transmitting and receiving circuit, serial circuit chip, electronic equipment and vehicle |
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2019
- 2019-07-24 CN CN201921177964.8U patent/CN209823896U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115296687A (en) * | 2022-08-08 | 2022-11-04 | 慷智集成电路(上海)有限公司 | Full-duplex transmitting and receiving circuit, serial circuit chip, electronic equipment and vehicle |
| CN115296687B (en) * | 2022-08-08 | 2023-11-17 | 慷智集成电路(上海)有限公司 | Full duplex transmitting and receiving circuit, serial circuit chip, electronic equipment and vehicle |
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