CN111601057A - High definition converter - Google Patents

Abstract

The invention discloses a high-definition converter, and belongs to the technical field of image processing. The device comprises a digital audio and video input interface, a PCB circuit board, a high-definition output interface, an infrared receiving module and an infrared remote controller. The audio and video signals are input to an FPGA chip of the PCB through an input interface, output to a high-definition signal output module through a signal acquisition and preprocessing module of the FPGA chip, a video format processing and image resolution adjusting module, an OSD display module and a graphic color adjusting module, and output to a television or a display, and a control module in the FPGA chip is responsible for acquiring, processing and outputting audio signals and receiving and responding to control signals of a remote controller. The invention solves the problem that the Gamecube game machine can not output high-definition signals, provides a brand-new plug-and-play high-definition converter, and adjusts the resolution, the image quality and the audio frequency of an image in real time through OSD and an infrared remote controller.

Description

A high-definition converter

technical field

The invention relates to the fields of video image processing and video converters, in particular to a high-definition converter.

Background technique

The video interface of GameCube home game console has composite video and digital video interface, but cannot output HDMI high-definition video signal. Currently, an analog audio and video converter is required to output the GameCube game screen to an HDMI TV. The connection is relatively complicated, and the analog signal has a large loss and poor anti-interference performance during the transmission process, which further deteriorates the display screen transmitted to the TV. The composite video signal to HDMI converters sold on the market are relatively large, inconvenient to carry, have many and messy connections, poor audio and video anti-interference ability, and require an external power supply, which is inconvenient to use. Existing problems and shortcomings: 1. Gamecube game consoles cannot output high-definition HDMI signals; 2. Products on the market use analog audio and video signal conversion, the loss of video signal transmission and conversion is large, and the anti-interference performance is poor, resulting in the image transmitted to the TV. The picture quality is further deteriorated; 3. The analog video converters on the market cannot provide high-definition game video images; 4. The operation is complicated, requiring a lot of audio and video cables, and an external power supply, which is not convenient to use; 5. The use of a single function, audio and video During the video conversion process, the video and audio signals cannot be adjusted in real time.

SUMMARY OF THE INVENTION

In view of this, the present disclosure provides a brand-new plug-and-play high-definition converter, which can also adjust the resolution, picture quality and audio of images in real time through the OSD and infrared remote control. The present invention is achieved through the following technical solutions:

A high-definition converter, comprising: a digital audio and video input interface, a PCB circuit board, a high-definition output interface, an infrared receiving module, and an infrared remote control. The PCB circuit board includes but is not limited to an FPGA chip, which is the control part of the high-definition converter. The converted audio and video signals are input to the high-definition converter through the digital audio and video input interface, and the infrared receiving module receives the control signal from the infrared remote control. The signal is converted into a high-definition signal through the FPGA chip of the PCB circuit board, and is output to an external device through the high-definition signal output interface.

Further, in the FPGA chip of the described PCB circuit board, the internal functional modules include a video image acquisition and preprocessing module, a video format processing and image resolution adjustment module, an OSD display module, an image color adjustment module, and a high-definition converter control module. , operation processing storage unit and high-definition signal output module, the video signal input by the digital audio and video input interface is input to the video image acquisition and preprocessing module, and then the audio signal input by the digital audio and video input interface and the infrared remote control received by the infrared receiving module The control signal of the controller is input to the high-definition conversion control module. The high-definition conversion control module is responsible for collecting, processing and outputting audio signals, receiving and responding to the control signals of the remote control. The arithmetic processing storage unit is used to store and read and write input, output and process data, video After signal acquisition and preprocessing, combined with the control requirements of the infrared remote control, the video format processing and image resolution adjustment module and image color adjustment module are further converted and processed. The OSD display module is used to display the video and audio adjusted by the infrared remote control on the external display screen. The current state, and finally output the high-definition signal to the external device through the high-definition signal output module.

Further, the infrared remote control control signal includes but is not limited to the resolution of the video image output, the aspect ratio of the image, the color, the transparency, and the decibel of the output audio.

Further, the high-definition output interface is an HDMI interface.

The present disclosure provides a high-definition converter, which solves the problem that the Gamecube game console cannot output high-definition signals in the background art, and provides a brand-new plug-and-play high-definition converter that can convert images in real time through an OSD and an infrared remote control. The resolution, image quality and audio are adjusted to provide users with a new visual experience. All functions are integrated through the FPGA chip. This product uses only one chip, which is truly low-power, and the production process is simple and cost-effective. Low. The application of the present invention is not limited to the Gamecube game machine and can also be used for high-definition signal conversion in other occasions.

Description of drawings

1 is a schematic diagram of the basic structure of a high-definition converter provided by the present invention;

2 is a schematic diagram of a basic composition of a PCB circuit board according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the module composition and work flow of the FPGA chip of the present invention.

Detailed ways

The embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

The embodiments of the present disclosure are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only some, but not all, embodiments of the present disclosure. The present disclosure can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

The invention discloses a high-definition converter. The innovation starts from the problem that the Gamecube game machine cannot output high-definition signals in the technical background. Adjust the resolution, quality and audio of the image. The specific implementation is as follows:

A high-definition converter, as shown in Figure 1, includes: a digital audio and video input interface, a PCB circuit board, a high-definition output interface, an infrared receiving module, and an infrared remote control. The PCB circuit board includes but is not limited to the FPGA chip, which is the control part of the high-definition converter. As shown in Figure 2, the PCB circuit board also includes all required peripheral circuits during specific implementation. The digital audio and video input interface is a connection port between the device that requires high-definition conversion and the high-definition converter, and the audio and video signals that require high-definition conversion are input to the high-definition converter through the digital audio and video input interface. The infrared receiving module receives the control signal from the infrared remote controller. In the specific implementation, the digital audio and video input interface is fixed on the PCB through a splint, located on one side of the PCB, and the other side is the receiving head and the high-definition output interface received by the infrared receiving module. The audio and video signals input by the digital audio and video input interface and the control signal of the infrared remote control received by the infrared receiving module are converted into high-definition signals through the FPGA chip of the PCB circuit board, and are output to external devices through the high-definition signal output interface.

Further, the FPGA chip of the described PCB circuit board, as shown in Figure 3, includes a video image acquisition and preprocessing module, a video format processing and image resolution adjustment module, an OSD display module, an image color adjustment module, and a high-definition converter. Control module, operation processing storage unit and high-definition signal output module. The video signal input by the digital audio and video input interface is input to the video image acquisition and preprocessing module. Then, the audio signal input by the digital audio and video input interface and the control signal of the infrared remote control received by the infrared receiving module are input to the high-definition conversion control module. . The operation processing storage unit is used for storing and reading input, output and process data. After the video signal is collected and preprocessed, it is further converted and processed through the video format processing, image resolution adjustment module and image color adjustment module in combination with the control requirements of the infrared remote control. The OSD display module is used to display the current state of the video and audio adjusted by the infrared remote control on the external display. Finally, the high-definition signal is output to the external device through the high-definition signal output module. OSD is the abbreviation of on-screen display. The OSD display module and the infrared remote control achieve the purpose of adjusting various parameters through the function menu displayed on the screen. It is not only convenient to adjust, but also the adjustable content can be added as needed without being affected by the physical object. Limit the number of buttons on the panel size of the type adjustment device.

During specific implementation, the controllable signals of the infrared remote controller include but are not limited to the resolution of video image output, the aspect ratio of the image, the color, the transparency, and the decibel of the output audio.

Further, the digital audio and video input interface is a video interface of a device that needs high-definition conversion, and the high-definition output interface is an HDMI interface, which does not require any setting, and can display images after connecting to the HDMI interface of an external display device, Realized plug and play. The specific implementation provides a brand-new connector to receive the audio and video signals of the GameCube game machine when used in the GameCube game machine.

The application of the present invention is not limited to the Gamecube game machine and can also be used for high-definition signal conversion in other same occasions.

The above is only to illustrate the embodiments of the present invention, and not to limit the present invention. For those skilled in the art, all within the spirit and principle of the present invention, without any modification, equivalent replacement or improvement made by creative work etc., should be included within the protection scope of the present invention.

Claims (4)

1. A high definition converter, comprising: the system comprises a digital audio and video input interface, a PCB circuit board, a high-definition output interface, an infrared receiving module and an infrared remote controller, wherein the PCB circuit board comprises but is not limited to an FPGA chip and is a control part of a high-definition converter, audio and video signals needing high-definition conversion are input into the high-definition converter through the digital audio and video input interface, the infrared receiving module receives control signals from the infrared remote controller, the audio and video signals input by the digital audio and video input interface and the control signals of the infrared remote controller received by the infrared receiving module realize the conversion of the high-definition signals through the FPGA chip of the PCB circuit board, and the high-definition signals are output.

2. The high definition converter according to claim 1, wherein the FPGA chip of the PCB comprises a video image acquisition and pre-processing module, a video format processing and image resolution adjusting module, an OSD display module, an image color adjusting module, a high definition converter control module, an operation processing storage unit and a high definition signal output module, wherein a video signal input by the digital audio/video input interface is input to the video image acquisition and pre-processing module, an audio signal input by the digital audio/video input interface and a control signal of the infrared remote controller received by the infrared receiving module are input to the high definition conversion control module, the high definition conversion control module is responsible for acquiring, processing and outputting the audio signal and receiving and responding to the control signal of the remote controller, the operation processing storage unit is used for storing, reading, writing, outputting and processing data, the video signal is collected and preprocessed, then the video signal is combined with the control requirement of the infrared remote controller and is further converted and processed through the video format processing and image resolution adjusting module and the image color adjusting module, the OSD display module is used for displaying the current states of the video and the audio adjusted by the infrared remote controller on an external display screen, and finally, the high-definition signal is output to the external equipment through the high-definition signal output module.

3. The high definition converter as claimed in claim 1, wherein the infrared remote control signals include but are not limited to resolution, image aspect ratio, color, transparency of video image output, and decibel of output audio.

4. The converter according to claim 1, wherein the high definition output interface is an HDMI interface.

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