CN215300770U - Signal converter - Google Patents

Abstract

The application discloses a signal converter, which comprises an HDMI (high-definition multimedia interface), a signal conversion module, a serializer and a serial interface, wherein the HDMI is used for receiving an HDMI signal and sending the HDMI signal to the signal conversion module; the signal conversion module is used for converting the HDMI signal into a signal adaptive to the serializer and sending the converted signal to the serializer; and the serializer is used for converting the signal received from the signal conversion module into a serial signal and transmitting the serial signal through the serial interface.

Description

Signal converter

Technical Field

The present application relates to the field of signal processing technologies, and in particular, to a signal converter.

Background

At present, with the requirements of various industries on work, most of the industries need to transmit acquired image signals for a long distance. Since most of the image signals collected by the image collecting device are HDMI signals, to realize long-distance transmission of the image signals, the HDMI signals need to be converted into serial signals, and then the serial signals are transmitted over a long distance through a serial transmission cable. However, a signal converter dedicated to converting an HDMI signal into a serial signal is currently lacking.

SUMMERY OF THE UTILITY MODEL

The present disclosure provides a signal converter to at least solve the technical problem of the prior art that a signal converter specially used for converting an HDMI signal into a serial signal is absent.

According to the application, a signal converter is provided, which comprises an HDMI interface, a signal conversion module, a serializer and a serial interface, wherein the HDMI interface is used for receiving an HDMI signal and sending the HDMI signal to the signal conversion module; the signal conversion module is used for converting the HDMI signal into a signal adaptive to the serializer and sending the converted signal to the serializer; and the serializer is used for converting the signal received from the signal conversion module into a serial signal and transmitting the serial signal through the serial interface.

Optionally, the signal converter further comprises a POC network and a power supply module, wherein the POC network is configured to convert the first direct current transmitted through the serial transmission cable into a second direct current suitable for the serializer (130), and to transmit the second direct current to the power supply module; and the power supply module is used for supplying power to the HDMI interface, the signal conversion module and the serializer.

Optionally, the signal adapted to the serializer is a MIPI signal, a LVDS signal or a LVCMOS signal.

Therefore, the utility model provides a signal converter can be connected with external equipment through the HDMI interface to receive the HDMI signal that external equipment sent. Then, because the serializer can't normally receive the HDMI signal, consequently the utility model discloses a set up signal conversion module between HDMI interface and serializer. Therefore, the HDMI interface can send the received HDMI signal to the signal conversion module, the HDMI signal is converted into a signal adaptive to the serializer through the signal conversion module, and the converted signal is sent to the serializer. Thus, the signal converter provided by the present application may convert a signal (for example, a MIPI signal, a LVDS signal, or a LVCMOS signal) received from the signal conversion module into a serial signal through the serializer, and transmit the serial signal through the serial interface. Thus, the signal converter proposed by the present embodiment can convert the HDMI signal into a serial signal. And then solved the technical problem that exists lack a signal converter who is used for specially being used for with HDMI signal conversion serial signal among the prior art.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic diagram of a signal converter according to an embodiment of the present application; and

fig. 2 is a circuit schematic diagram of a POC network according to an embodiment of the present application.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Referring to fig. 1 and 2, the present application provides a signal converter, which includes an HDMI interface 110, a signal conversion module 120, a serializer 130, and a serial interface 140, wherein the HDMI interface 110 is configured to receive an HDMI signal and send the HDMI signal to the signal conversion module 120; the signal conversion module 120 is configured to convert the HDMI signal into a signal adapted to the serializer 130, and send the converted signal to the serializer 130; and a serializer 130 for converting the signal received from the signal conversion module 120 into a serial signal and transmitting the serial signal through a serial interface 140.

As described in the background, with the needs of various industries in work, the collected image signals are mostly required to be transmitted for a long distance. Since most of the image signals collected by the image collecting device are HDMI signals, to realize long-distance transmission of the image signals, the HDMI signals need to be converted into serial signals, and then the serial signals are transmitted over a long distance through a serial transmission cable. However, a signal converter dedicated to converting an HDMI signal into a serial signal is currently lacking.

In view of the above technical problems in the background art, the present application provides a signal converter. Referring to fig. 1, the signal converter 10 includes an HDMI interface 110, a signal conversion module 120, a serializer 130, and a serial interface 140. Thus, the signal converter 10 in the present embodiment may be connected to an external device (for example, but not limited to, an image capture device) through the HDMI interface 110, so as to receive an HDMI signal transmitted by the external device. Then, since the serializer 130 cannot normally receive the HDMI signal, the present embodiment provides the signal conversion module 120 between the HDMI interface 110 and the serializer 130. Thus, the HDMI interface 110 may transmit the received HDMI signal to the signal conversion module 120, convert the HDMI signal into a signal adapted to the serializer 130 through the signal conversion module 120, and transmit the converted signal to the serializer 130. In a preferred embodiment, the signal adapted to the serializer 130 is a MIPI signal, a LVDS signal or a LVCMOS signal. Thus, the signal converter 10 according to the present embodiment may convert a signal (for example, a MIPI signal, a LVDS signal, or a LVCMOS signal) received from the signal conversion module 120 into a serial signal through the serializer 130, and transmit the serial signal through the serial interface 140. Thus, the signal converter 10 proposed by the present embodiment can convert the HDMI signal into a serial signal. And then solved the technical problem that exists lack a signal converter who is used for specially being used for with HDMI signal conversion serial signal among the prior art.

In addition, the signal conversion module 120 used in the present disclosure may employ, for example, a dedicated ASIC bridge conversion chip, such as TC358743XBG/TC358749XBG of toshiba corporation, which may implement conversion from HDMI to MIPI CSI 2; besides the special ASIC bridge conversion chip, the conversion from HDMI signals to MIPI CSI-2, LVDS and LVCMOS signals can also be realized by adopting FPGA.

Optionally, the signal converter 10 further comprises a POC network 150 and a power module 160, wherein the POC network 150 is configured to convert the first direct current transmitted through the serial transmission cable into a second direct current suitable for the serializer (130), and transmit the second direct current to the power module 160; and the power module 160 is used for supplying power to the HDMI interface 110, the signal conversion module 120, and the serializer 130.

Specifically, referring to fig. 1, in order to design a lightweight, portable, and low-cost signal converter, the signal converter 10 of the present application does not have a power supply device disposed therein, but transmits direct current power of an external power supply device to the inside of the signal converter 10 by using a serial transmission cable. Then, the present embodiment is implemented by providing the POC network 150 and the power module 160 inside the signal converter 10, considering that the dc power transmitted through the serial transmission cable is a dc power that may contain a large amount of noise. Accordingly, the dc power (corresponding to the first dc power) including a large amount of noise transmitted through the serial transmission cable may be converted into a low-noise dc power (corresponding to the second dc power) suitable for the serializer 130 through the POC network 150, and the converted second dc power may be transmitted to the power module 160, and then the HDMI interface 110, the signal conversion module 120, and the serializer 130 therein may be powered through the power module 160. In this way, the problem of supplying power to the various modules inside the signal converter 10 is thus solved, while at the same time the lightness, convenience and low cost of the proposed signal converter 10 are ensured.

Further, referring to fig. 1, the image capturing apparatus may be connected to the HDMI interface 110 in the signal converter 10 proposed in this embodiment through an HDMI line, and the remote deserializer 20 may be connected to the serial interface 140 in the signal converter 10 proposed in this embodiment through a serial transmission cable. Thus, the image capturing apparatus transmits the captured image signal (which is an HDMI signal) to the HDMI interface 110 in the signal converter 10 through the HDMI line, and the HDMI interface 110 transmits the HDMI signal to the signal conversion module 130. The HDMI signal is converted into a MIPI signal by the signal conversion module 120, and then the MIPI signal is transmitted to the serializer 130. The serializer 130 converts the received MIPI signal into a serial signal and transmits the serial signal to the serial interface 140. The serial interface 140 transmits the serial signal to the remote deserializer 20 through a serial transmission cable. Thus, the signal converter 10 proposed by the present embodiment can convert the HDMI signal collected by the image capture device into a serial signal, and transmit the serial signal to the remote deserializer 20 through a serial transmission cable for a long distance, and the serial signal is deserialized into the MIPI signal by the deserializer 20. In this way, long distance transmission of signals is achieved.

Fig. 2 shows an exemplary circuit schematic of a POC network. As shown in fig. 1 and 2, an external power supply device may be provided in the signal processing device including the deserializer 20 and then transmit the electrical signal to the deserializer 20. The deserializer 20 transmits the direct current containing a large amount of noise to the serial interface 140 through the serial transmission cable, i.e., the MAIN _ PWR end in fig. 2 transmits the direct current containing a large amount of noise (corresponding to the first direct current). Then, after the dc power containing a large amount of noise is rectified and filtered by the POC network 150, the low-noise dc power (corresponding to the second dc power) is output to the power module 160, i.e., the OUT + end in fig. 2 outputs the low-noise dc power. Finally, the power module 160 supplies power to the HDMI interface 110, the signal conversion module 120, and the serializer 130 in the signal converter 10. In this way, the problem of supplying power to the various modules inside the signal converter 10 is solved.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (3)

1. A signal converter (10) comprising an HDMI interface (110), a signal conversion module (120), a serializer (130), and a serial interface (140), wherein

The HDMI interface (110) is used for receiving an HDMI signal and sending the HDMI signal to the signal conversion module (120);

the signal conversion module (120) is used for converting the HDMI signal into a signal which is suitable for the serializer (130) and sending the converted signal to the serializer (130); and

the serializer (130) is configured to convert the signal received from the signal conversion module (120) into a serial signal and transmit the serial signal through the serial interface (140).

2. The signal converter (10) of claim 1, further comprising a POC network (150) and a power module (160), wherein

The POC network (150) is used for converting the first direct current transmitted by the serial transmission cable into a second direct current suitable for the serializer (130) and sending the second direct current to the power supply module (160); and

the power supply module (160) is used for supplying power to the HDMI (110), the signal conversion module (120) and the serializer (130).

3. The signal converter (10) of claim 1, wherein the signal adapted to the serializer (130) is a MIPI signal, a LVDS signal or a LVCMOS signal.

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