CN214315443U - HDMI photoelectric hybrid transmission system - Google Patents
HDMI photoelectric hybrid transmission system Download PDFInfo
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- CN214315443U CN214315443U CN202120101207.3U CN202120101207U CN214315443U CN 214315443 U CN214315443 U CN 214315443U CN 202120101207 U CN202120101207 U CN 202120101207U CN 214315443 U CN214315443 U CN 214315443U
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Abstract
The utility model provides a HDMI photoelectricity hybrid transmission system, including transmitting terminal HDMI, receiving terminal HDMI and the signal line of connecting transmitting terminal HDMI and receiving terminal HDMI, wherein, transmitting terminal HDMI embeds has transmitting terminal photoelectricity module, and transmitting terminal photoelectricity module includes the transmitting terminal circuit board, and the integrated earth capacitance regulating circuit that has on the transmitting terminal circuit board; and/or a receiving end photoelectric module is arranged in the receiving end HDMI and comprises a receiving end circuit board, and a ground capacitance adjusting circuit is integrated on the receiving end circuit board. The utility model discloses can freely adjust the signal line of low frequency control clock signal and/or low frequency control data signal to the capacitance value of ground to under the prerequisite of guaranteeing the stability of HDMI photoelectricity hybrid transmission system transmission low frequency control signal, promote HDMI photoelectricity hybrid transmission system to transmission distance's from control ability by a wide margin.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a signal transmission technical field especially relates to a HDMI photoelectricity hybrid transmission system.
[ background of the invention ]
A High Definition Multimedia Interface (HDMI) is a fully digital video and audio transmission Interface, can transmit uncompressed audio and video signals, and is widely applied to electronic devices such as set-top boxes, DVD players, personal computers, televisions, game consoles, integrated amplifiers, digital audio and televisions, and the like. HDMI is generally connected to a signal line (e.g., a copper line) to form an HDMI transmission system, and in recent years, the HDMI and optical hybrid transmission system formed by combining HDMI and optical fiber is limited in that the copper line cannot satisfy ultra-long distance transmission.
In the prior art, an HDMI-optoelectronic hybrid transmission system generally includes a transmitter HDMI having a transmitter optoelectronic module, a receiver HDMI having a receiver optoelectronic module, and an optical fiber connecting the transmitter HDMI and the receiver HDMI, wherein the transmitter optoelectronic module is generally used to convert four pairs of high-speed differential signal pairs into optical signals from electrical signals, and the optical fiber is used to transmit video signals. Conventionally, the transmission distance of the HDMI optoelectronic hybrid transmission system is limited firstly by the type of the optical fiber and the coupling efficiency between the optoelectronic module and the optical fiber, and secondly by the capacitance value of the signal line of the low-frequency control clock signal and the signal line of the low-frequency control data signal to the ground.
Therefore, it is necessary to improve the structure of the HDMI optical-electrical hybrid transmission system.
[ Utility model ] content
The utility model discloses the technical problem that will solve is: the utility model provides a HDMI photoelectricity hybrid transmission system, solves the problem that HDMI photoelectricity hybrid transmission system is weak to the self control ability of transmission distance among the prior art.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the embodiment of the utility model provides a HDMI photoelectricity hybrid transmission system, include: the device comprises a transmitting end HDMI, a receiving end HDMI and a signal line for connecting the transmitting end HDMI and the receiving end HDMI, wherein a transmitting end photoelectric module is arranged in the transmitting end HDMI, the transmitting end photoelectric module comprises a transmitting end circuit board, and a ground capacitance adjusting circuit is integrated on the transmitting end circuit board; and/or
The receiving end HDMI is internally provided with a receiving end photoelectric module which comprises a receiving end circuit board, and a ground capacitance adjusting circuit is integrated on the receiving end circuit board.
In some embodiments, the signal line includes: optical fiber and copper wire.
In some embodiments, the transmitter HDMI and the receiver HDMI are correspondingly provided with a power pin, a ground pin, and a low-frequency control clock signal pin, and the two power pins, the two ground pins, and the two low-frequency control clock signal pins are all connected through the copper wire, and the first equivalent circuit of the capacitance-to-ground adjustment circuit includes: one end of the first resistor is connected with the low-frequency control clock signal pin of the HDMI of the transmitting end through the copper wire, and the other end of the first resistor is connected with the low-frequency control clock signal pin of the HDMI of the receiving end through the copper wire;
one end of the second resistor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the transmitting terminal HDMI, and the other end of the second resistor is connected to the copper wire between the two power supply pins;
one end of the third resistor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the receiving end HDMI, and the other end of the third resistor is connected to the copper wire between the two power supply pins;
one end of the first capacitor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the receiving end HDMI, and the other end of the first capacitor is connected to the copper wire between the two ground pins.
In some embodiments, the transmitting end HDMI and the receiving end HDMI are further provided with a low-frequency control data signal pin, and the second equivalent circuit of the capacitance-to-ground adjusting circuit includes: one end of the fourth resistor is connected with the low-frequency control data signal pin of the HDMI of the transmitting end through the copper wire, and the other end of the fourth resistor is connected with the low-frequency control data signal pin of the HDMI of the receiving end through the copper wire;
one end of the fifth resistor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the transmitter HDMI, and the other end of the fifth resistor is connected to the copper wire between the two power supply pins;
one end of the sixth resistor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the receiving end HDMI, and the other end of the sixth resistor is connected to the copper wire between the two power supply pins;
one end of the second capacitor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the receiving end HDMI, and the other end of the second capacitor is connected to the copper wire between the two ground pins.
In some embodiments, the equivalent circuit of the capacitance-to-ground adjusting circuit on the transmitting-side circuit board is the first equivalent circuit, and the equivalent circuit of the capacitance-to-ground adjusting circuit on the receiving-side circuit board is the second equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the second equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the first equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the first equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the first equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the second equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the second equivalent circuit.
From the above description, compared with the prior art, the beneficial effects of the present invention lie in:
the ground capacitance adjusting circuit is integrated on the transmitting end circuit board and/or the ground capacitance adjusting circuit is integrated on the receiving end circuit board, so that the HDMI photoelectric hybrid transmission system can freely adjust the capacitance value of the signal line of the low-frequency control clock signal and/or the low-frequency control data signal to the ground through the ground capacitance adjusting circuit integrated on the transmitting end circuit board and/or the ground capacitance adjusting circuit integrated on the receiving end circuit board in the working process, thereby the HDMI photoelectric hybrid transmission system greatly improves the self-control capability of the transmission distance on the premise of ensuring the stability of the HDMI photoelectric hybrid transmission system for transmitting the low-frequency control signal.
[ description of the drawings ]
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is to be understood that the drawings in the following description are merely illustrative of some, but not all, embodiments of the invention. For a person skilled in the art, other figures can also be obtained from the provided figures without inventive effort.
Fig. 1 is a schematic structural diagram of an HDMI/optoelectronic hybrid transmission system according to an embodiment of the present invention;
fig. 2 is a schematic circuit structure diagram of a first equivalent circuit of the capacitance-to-ground adjusting circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a second equivalent circuit of the capacitance to ground adjusting circuit according to an embodiment of the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an HDMI-optoelectronic hybrid transmission system according to an embodiment of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a mixed transmission system of HDMI photoelectricity, including transmitting terminal HDMI100, receiving terminal HDMI200 and the signal line 300 of connecting transmitting terminal HDMI100 and receiving terminal HDMI200, wherein, transmitting terminal HDMI100 embeds there is transmitting terminal photovoltaic module (not shown in the figure), and transmitting terminal photovoltaic module includes transmitting terminal circuit board (not shown in the figure), and the integration has holds regulating circuit (not shown in the figure) to ground on the transmitting terminal circuit board. It should be noted that the capacitance-to-ground adjustment circuit integrated on the transmission-end circuit board is intended to adjust the equivalent capacitance value of the signal line of the low-frequency control clock signal and/or the low-frequency control data signal to ground.
In practical application, when the embodiment of the utility model provides an above-mentioned HDMI photoelectricity hybrid transmission system is in operating condition, can freely adjust the equivalent capacitance value to ground of signal line pair of low frequency control clock signal and/or low frequency control data signal through the integrated capacitance adjusting circuit to ground on the transmitting terminal circuit board for the equivalent capacitance value to ground of signal line pair of low frequency control clock signal and/or low frequency control data signal reaches the expectation value.
Further, the receiving-end HDMI200 also has a receiving-end optoelectronic module (not shown in the figure) built therein, and the receiving-end optoelectronic module includes a receiving-end circuit board (not shown in the figure), and at this time, the ground capacitance adjusting circuit integrated on the transmitting-end circuit board can be integrated on the receiving-end circuit board.
Certainly, the setting positions and the number of the above-mentioned ground capacitance adjusting circuits are not limited thereto, and in other embodiments, the ground capacitance adjusting circuits may be integrated on the transmitting end circuit board and the receiving end circuit board at the same time, and one or more ground capacitance adjusting circuits may be integrated on the same circuit board, at this time, the number of the ground capacitance adjusting circuits is greater than or equal to two. It should be understood that when the number of the capacitance-to-ground adjusting circuits is greater than or equal to two, the circuit structures of the respective pairs of the capacitance-to-ground adjusting circuits may be the same or different. Based on this, to ground capacitance adjusting circuit's set up position, quantity and specific circuit structure and all confirm according to the practical application scene, the embodiment of the utility model provides a do not limit to this.
The embodiment of the utility model provides an among the above-mentioned HDMI photoelectricity hybrid transmission system, the integrated electric capacity regulating circuit that makes a pair of ground and/or the integrated electric capacity regulating circuit that makes a pair of ground on the receiving terminal circuit board on the transmitting terminal circuit board, make HDMI photoelectricity hybrid transmission system in the course of the work, can be through the integrated electric capacity regulating circuit that makes a pair of ground on the transmitting terminal circuit board and/or the integrated electric capacity regulating circuit that makes a pair of ground on the receiving terminal circuit board, freely adjust the equivalent capacitance value of signal line pair ground of low frequency control clock signal and/or low frequency control data signal, thereby under the prerequisite of guaranteeing HDMI photoelectricity hybrid transmission system transmission low frequency control signal's stability, HDMI photoelectricity hybrid transmission system has promoted the self-control ability to transmission distance by a wide margin.
Referring to fig. 2 and fig. 3, fig. 2 is a schematic circuit structure diagram of a first equivalent circuit of a capacitance-to-ground adjusting circuit according to an embodiment of the present invention, and fig. 3 is a schematic circuit structure diagram of a second equivalent circuit of a capacitance-to-ground adjusting circuit according to an embodiment of the present invention.
As a possible implementation, the signal line 300 connecting the transmitting-side HDMI100 and the receiving-side HDMI200 may be formed of at least one optical fiber and at least one copper wire. It should be understood that, the number of the optical fibers and the number of the copper wires are determined according to practical application scenarios, and the embodiment of the present invention does not limit this.
Further, as shown in fig. 2, the transmitter HDMI100 and the receiver HDMI200 may be correspondingly provided with power pins (a1 and a2), ground pins (D1 and D2), and low-frequency control clock signal pins (B1 and B2), and the two power pins a1 and a2, the two ground pins D1 and D2, and the two low-frequency control clock signal pins B1 and B2 may be connected through copper wires (310, 321, 322, and 330).
On this basis, the first equivalent circuit of the above-mentioned ground capacitance adjusting circuit may include a first resistor R1, a second resistor R2, a third resistor R3 and a first capacitor C1, wherein one end of the first resistor R1 is connected to the low-frequency control clock signal pin B1 of the transmitter HDMI100 through a copper wire 321, and the other end of the first resistor R1 is connected to the low-frequency control clock signal pin B2 of the receiver HDMI200 through a copper wire 322; one end of the second resistor R2 is connected to the copper wire 321 between the first resistor R1 and the low-frequency control clock signal pin B1 of the transmitter HDMI100, and the other end of the second resistor R2 is connected to the copper wire 310 between the two power pins a1 and a 2; one end of the third resistor R3 is connected to the copper line 322 between the first resistor R1 and the low-frequency control clock signal pin B2 of the receiving-end HDMI200, and the other end of the third resistor R3 is connected to the copper line 310 between the two power pins a1 and a 2; one end of the first capacitor C1 is connected to the copper line 322 between the first resistor R1 and the low-frequency control clock signal pin B2 of the sink HDMI200, and the other end of the first capacitor C1 is connected to the copper line 330 between the two ground pins D1 and D2.
Further, as shown in fig. 3, the transmitter HDMI100 and the receiver HDMI200 may be further provided with low frequency control data signal pins (E1 and E2).
On this basis, the second equivalent circuit of the above-mentioned ground capacitance adjusting circuit may include a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a second capacitor C2, wherein one end of the fourth resistor R4 is connected to the low-frequency control data signal pin E1 of the transmitter HDMI100 through a copper wire 341, and the other end of the fourth resistor R4 is connected to the low-frequency control data signal pin E2 of the receiver HDMI200 through a copper wire 342; one end of the fifth resistor R5 is connected to the copper line 341 between the fourth resistor R4 and the low frequency control data signal pin E1 of the transmitter HDMI100, and the other end of the fifth resistor R5 is connected to the copper line 310 between the two power pins a1 and a 2; one end of the sixth resistor R6 is connected to the copper line 342 between the fourth resistor R4 and the low-frequency control data signal pin E2 of the sink HDMI200, and the other end of the sixth resistor R6 is connected to the copper line 310 between the two power pins a1 and a 2; one end of the second capacitor C2 is connected to the copper line 342 between the fourth resistor R4 and the low-frequency control data signal pin E2 of the sink HDMI200, and the other end of the second capacitor C2 is connected to the copper line 330 between the two ground pins D1 and D2.
Of course, the structural form of the equivalent circuit of the ground capacitance adjusting circuit is not limited to the two equivalent circuits shown above, and in other embodiments, the structural form of the equivalent circuit of the ground capacitance adjusting circuit may be a simple equivalent circuit (similar to the two equivalent circuits shown above) constructed by a plurality of simple components, or a complex equivalent circuit constructed by a chip or an MCU microcontroller, for example, a complex equivalent circuit constructed by a chip with a capacitance equivalent function (for example, a P82B96 chip), and the like, which is not limited by the embodiment of the present invention.
In addition, when the equivalent circuit of the capacitance-to-ground adjusting circuit on the transmitting-end circuit board is a first equivalent circuit, the equivalent circuit of the capacitance-to-ground adjusting circuit on the receiving-end circuit board may be a second equivalent circuit or a first equivalent circuit; when the equivalent circuit of the capacitance to ground regulating circuit on the above-mentioned transmitting end circuit board is the second kind of equivalent circuit, the equivalent circuit of the capacitance to ground regulating circuit on the above-mentioned receiving end circuit board can be for first kind of equivalent circuit or second kind of equivalent circuit, the embodiment of the utility model provides a do not limit to this.
It should be noted that the embodiments of the present invention are described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is further noted that, in the present disclosure, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An HDMI optical-electrical hybrid transmission system, comprising: the device comprises a transmitting end HDMI, a receiving end HDMI and a signal line for connecting the transmitting end HDMI and the receiving end HDMI, wherein a transmitting end photoelectric module is arranged in the transmitting end HDMI, the transmitting end photoelectric module comprises a transmitting end circuit board, and a ground capacitance adjusting circuit is integrated on the transmitting end circuit board; and/or
The receiving end HDMI is internally provided with a receiving end photoelectric module which comprises a receiving end circuit board, and a ground capacitance adjusting circuit is integrated on the receiving end circuit board.
2. The HDMI optoelectronic hybrid transmission system of claim 1, wherein said signal line comprises: optical fiber and copper wire.
3. The HDMI/optoelectronic hybrid transmission system according to claim 2, wherein said transmitter HDMI and said receiver HDMI are respectively provided with a power pin, a ground pin, and a low-frequency control clock signal pin, and two of said power pins, two of said ground pins, and two of said low-frequency control clock signal pins are all connected by said copper wire, and said first equivalent circuit of the capacitance-to-ground adjustment circuit comprises: one end of the first resistor is connected with the low-frequency control clock signal pin of the HDMI of the transmitting end through the copper wire, and the other end of the first resistor is connected with the low-frequency control clock signal pin of the HDMI of the receiving end through the copper wire;
one end of the second resistor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the transmitting terminal HDMI, and the other end of the second resistor is connected to the copper wire between the two power supply pins;
one end of the third resistor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the receiving end HDMI, and the other end of the third resistor is connected to the copper wire between the two power supply pins;
one end of the first capacitor is connected to the copper wire between the first resistor and the low-frequency control clock signal pin of the receiving end HDMI, and the other end of the first capacitor is connected to the copper wire between the two ground pins.
4. The HDMI optoelectronic hybrid transmission system of claim 3, wherein said transmitter HDMI and said receiver HDMI are further provided with a low frequency control data signal pin, and wherein said second equivalent circuit of said capacitance-to-ground adjustment circuit comprises: one end of the fourth resistor is connected with the low-frequency control data signal pin of the HDMI of the transmitting end through the copper wire, and the other end of the fourth resistor is connected with the low-frequency control data signal pin of the HDMI of the receiving end through the copper wire;
one end of the fifth resistor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the transmitter HDMI, and the other end of the fifth resistor is connected to the copper wire between the two power supply pins;
one end of the sixth resistor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the receiving end HDMI, and the other end of the sixth resistor is connected to the copper wire between the two power supply pins;
one end of the second capacitor is connected to the copper wire between the fourth resistor and the low-frequency control data signal pin of the receiving end HDMI, and the other end of the second capacitor is connected to the copper wire between the two ground pins.
5. The HDMI optoelectronic hybrid transmission system of claim 4, wherein an equivalent circuit of said capacitance-to-ground adjusting circuit on said transmitting-side circuit board is said first equivalent circuit, and an equivalent circuit of said capacitance-to-ground adjusting circuit on said receiving-side circuit board is said second equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the second equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the first equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the first equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the first equivalent circuit; or
The equivalent circuit of the ground capacitance adjusting circuit on the transmitting end circuit board is the second equivalent circuit, and the equivalent circuit of the ground capacitance adjusting circuit on the receiving end circuit board is the second equivalent circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101207.3U CN214315443U (en) | 2021-01-14 | 2021-01-14 | HDMI photoelectric hybrid transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120101207.3U CN214315443U (en) | 2021-01-14 | 2021-01-14 | HDMI photoelectric hybrid transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214315443U true CN214315443U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120101207.3U Active CN214315443U (en) | 2021-01-14 | 2021-01-14 | HDMI photoelectric hybrid transmission system |
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|---|---|
| CN (1) | CN214315443U (en) |
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2021
- 2021-01-14 CN CN202120101207.3U patent/CN214315443U/en active Active
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