CN201118769Y - Digital video recording device for DVD video disc player - Google Patents

Abstract

The utility model relates to the technical field of video recording devices, in particular to a digital video recording device of a DVD video disc player, which is an electronic digital video recording device arranged in the DVD video disc player and comprises a TV tuner interface, an audio/video input selection unit, an audio/video analog-to-digital conversion unit, an audio/video decoding unit, a storage card and a system control unit, wherein the TV tuner interface and a DVD signal source interface are connected with the audio/video analog-to-digital conversion unit, the audio/video analog-to-digital conversion unit is connected with the audio/video decoding unit, the output end of the audio/video decoding unit is connected with the audio/video output interface and the storage card or a mobile memory (U disc), and the system control unit controls the units to work coordinately. Is convenient to carry and move and read.

Description

A digital video recording device for a DVD player

Technical field:

The utility model relates to the technical field of video recording devices, in particular to a digital video recording device of a DVD player.

Background technique:

With the development of electronic technology and the improvement of people's living standards, various multimedia electronic devices have been widely used in various fields such as people's work and life. At the same time, people have also put forward higher requirements for various electronic devices. But there is still no electronic equipment that directly records audio/video signals such as various TV signals and DVD signals at present. As for various wonderful ball games, TV shows and other TV programs, many people cannot record them in time due to work and daily entertainment. It is troublesome to watch; such as a DVD player, because the DVD player does not have a burning function, so the DVD player can only be used to play the DVD, and the function is single, but if you want to burn the DVD on the DVD, you generally need a computer Or, the closed-circuit television installed in various places at present, its video recording is generally stored on the hard disk of the computer, and the image is inconvenient to move and call at any time, which brings much inconvenience to people's life and work.

Utility model content:

The purpose of this utility model is to provide a digital video recording device for a DVD video disc player in view of the deficiencies in the prior art. The digital video recording device is an electronic digital video recording with a very small volume. Easy to use.

In order to achieve the above object, the utility model is achieved through the following technical solutions: the digital video recording device includes a TV tuner interface, an audio/video input selection unit, an audio/video analog-to-digital conversion unit, an audio/video decoding unit, a memory card, The system control unit, the TV tuner interface, the DVD signal source of the DVD player, the system control unit are connected to the input end of the audio/video analog-to-digital conversion unit, and the output end of the audio/video analog-to-digital conversion unit is connected to the audio/video decoder The input end of the unit, the input end of the audio/video decoding unit is also connected with the system control unit, power supply, program memory, data memory, and the output end of the audio/video decoding unit is connected with the memory card, audio/video output interface; The system control unit is also connected with the tuner interface of the TV, the DVD signal source of the DVD player, the audio/video input selection unit, and the audio/video input selection unit is connected with the DVD signal source.

The output end of the audio/video decoding unit is connected with the mobile memory.

The system control unit is provided with a remote control receiving module, and the system control unit is connected with the audio/video decoding unit through the remote control receiving module.

The audio/video analog-to-digital conversion unit is provided with an audio analog-to-digital conversion chip and a video analog-to-digital conversion chip. The model of the audio analog-to-digital conversion chip is WTN9711, and the model of the video analog-to-digital conversion chip is TVP5150.

The chip model of the audio/video decoding unit is AML7216.

The system control unit is provided with a program control memory, and the chip model of the program control memory is 89C52.

The memory card is connected with the audio/video decoding unit through a USB interface, and the memory card is a CF card or an SD card or an MMC card or an MS card.

The system control unit is also connected with a display screen.

As can be seen from the above-mentioned technical scheme, the digital video recording device of the present utility model is an electronic digital video recording device installed in a DVD player, and it includes a TV tuner interface, an audio/video input selection unit, an audio/video analog-to-digital conversion Unit, audio/video decoding unit, memory card, system control unit, TV tuner interface and DVD signal source of DVD player are connected to audio/video analog-to-digital conversion unit, audio/video analog-to-digital conversion unit is connected to audio/video decoding unit , the output end of the audio/video decoding unit is connected to the audio/video output interface and memory card or mobile memory (U disk), the audio/video input selection unit is used to switch and select the DVD signal source and the TV tuner interface, and the system control unit is connected to TV tuner interface, audio/video input selection unit, audio/video analog-to-digital conversion unit, audio/video decoding unit, system control unit controls each unit to coordinate work, input DVD signal or TV signal to audio/video analog-to-digital conversion The unit converts it into a digital signal, and the digital signal is decoded and compressed into a digital format multimedia file by the audio/video decoding unit, and the file is saved on the memory card or mobile memory (U disk). Because the digital video recording device of the present utility model is an electronic digital video recording, it does not need a mechanical transmission mechanism and a photoelectric recording device, so its volume is very small, and it can be installed inside the DVD video disc player without increasing the volume of the DVD video disc player, which is convenient for recording DVD images and TV programs have enriched the functions of the DVD player; in addition, the memory card or mobile memory (U disk) of the utility model is a plug-and-play memory, and various audio/video playback devices can directly identify and Reading does not need to install drivers, nor does it need to use special data lines and other reading equipment. It has strong versatility and is very convenient and quick to use. It is an electronic digital video recording, which is not easy to be damaged, so that the DVD player can record DVDs and TV programs, which enriches the functions of the DVD player, and the memory card or mobile memory is versatile, easy to carry and move, and easy to read.

Description of drawings:

Accompanying drawing 1 is the structural representation of the utility model.

Detailed ways:

Embodiment sees accompanying drawing 1, the digital video recording device of DVD video disc player is an electronic digital video recording device installed in the DVD video disc player, and it makes DVD video disc player have digital video recording function. The digital video device includes a TV tuner interface 1 , an audio/video input selection unit 3 , an audio/video analog-to-digital conversion unit 4 , an audio/video decoding unit 5 , a memory card 6 and a system control unit 7 .

The DVD signal source 2 of the DVD player directly receives the DVD signal output by the DVD player.

The TV tuner interface 1 , the DVD signal source 2 of the DVD player and the system control unit 7 are connected to the input end of the audio/video analog-to-digital conversion unit 4 . The DVD signal output by the DVD player is input to the audio/video analog-to-digital conversion unit 4, processed by the audio/video analog-to-digital conversion unit 4, and converted into corresponding audio/video digital signals for subsequent processing.

Described TV tuner interface 1 can connect the TV signal of TV set to this digital video device, and TV signal is an analog signal, and by this TV tuner interface 1, TV signal is input to audio\video analog-to-digital conversion unit 4 , the analog-to-digital conversion process is performed by the audio/video analog-to-digital conversion unit 4, and the analog signal of the TV is converted into a digital signal. Alternatively, the TV tuner interface 1 is connected to a video monitor, closed-circuit television and other equipment, so that its audio/video signals are input to the audio/video analog-to-digital conversion unit 4 .

Described audio/video analog-to-digital conversion unit 4 is provided with audio analog-to-digital conversion chip and video analog-to-digital conversion chip, and the model of described audio frequency analog-to-digital conversion chip is WTN9711, and this chip is responsible for converting audio analog signal into audio digital signal, the model of the video analog-to-digital conversion chip is TVP5150, which is responsible for converting video analog signals into video digital signals. Of course, the audio analog-to-digital conversion chip and the video analog-to-digital conversion chip can also be replaced by other types of chips with the same function, as long as they can convert audio analog signals into audio digital signals and video analog signals It can be used for the purpose of video digital signal.

The output end of described audio/video analog-to-digital conversion unit 4 is connected to the input end of audio/video decoding unit 5, and the output end of audio/video decoding unit 5 is connected with memory card 6, audio/video output interface 8. The audio/video analog-to-digital conversion unit 4 transmits the processed audio digital signal and video digital signal to the audio/video decoding unit 5 for processing by the audio/video decoding unit 5 .

Described audio/video decoding unit 5 is provided with audio/video decoding chip, and the model of this chip is AML7216. The chip decodes and encodes the audio digital signal and video digital signal delivered by the audio\video analog-to-digital conversion unit 4, and compresses it into a multimedia file in digital format. After decoding, the AML7216 chip decodes the audio digital signal and video digital signal Compress and become a video file in AVI format, and save the file on the memory card 6 at last. Of course, the audio/video decoding chip can also be replaced by other types of chips with the same function, as long as it can decode the audio digital signal and the video digital signal delivered by the audio/video analog-to-digital conversion unit 4 and The purpose of compressing it into a media file in one more digital format is sufficient.

The output end of audio/video decoding unit 5 connects memory card 6 or removable memory (as U disk), and memory card 6 is a CF card, and described memory card 6 also can be SD card, MMC card, MS card. Because memory card 6 and mobile memory (U disk) are all plug-and-play memory, for memory card 6, memory card 6 can be used in notebook, computer, digital camera, monitor, television set, It can be used on various audio/video playback devices such as digital photo frames; for mobile storage (U disk), the mobile storage (U disk) can be directly connected to various audio/video playback devices through its USB interface, and the audio/video playback devices are It can be directly identified and read, so it has strong versatility and is very convenient and quick to use. It does not need to install drivers, and does not need to use special data lines and other reading devices. Therefore, after the complete video recording work of the digital video recording device, the memory card 6 or mobile memory (U disk) can be directly unplugged, inserted into other audio/audio playback equipment, and the memory card 6 can be directly read and played. multimedia files, the memory card 6 is connected with the audio/audio playback device through the card reader, and the mobile memory (U disk) is connected with the audio/audio playback device through its USB interface, which is convenient and fast, and provides people's work, life and entertainment. convenient.

After the complete video recording work of the digital video recording device, because the video recording is stored on the memory card 6, the digital video recording device can also be connected to the audio/video playback device through its audio/video output interface 8, and play the memory card 6 at the audio/video playback device. Multimedia files on the Internet, you can call the relevant video discs to play at any time. Because the digital video recording device of the present utility model is an electronic digital video recording device, and does not need a mechanical transmission mechanism and a photoelectric recording device, the volume of the whole machine is very small and exquisite, and it is not easy to be damaged.

The input end of described audio/video decoding unit 5 is also connected with system control unit 7, power supply 9, program memory 10, data memory 11, and described system control unit 7 is also connected with TV tuner interface 1, DVD player The DVD signal source 2 and the audio/video input selection unit 3 are connected, and the audio/video input selection unit 3 is connected to the DVD signal source 2 of the DVD player. The audio/video input selection unit 3 is used to select and switch the DVD signal source 2 and the TV tuner interface 1 of the DVD player, and the system control unit 7, the power supply 9, the program memory 10, and the data memory 11 are auxiliary components of the digital video recorder , the system control unit 7 is the control center of the digital video device, and is used to control the work of the digital video device; the power supply 9 provides working power for each component, the program memory 10 is used for program storage, and the data memory 11 is used for temporary storage of data.

The system control unit 7 is provided with a program control memory (CPU), and the chip model of the program control memory is 89C52. The program control memory is used to control the coordinated work of each unit of the digital video device. Select the DVD signal source 2 or the TV tuner interface 1 using the DVD player by the audio/video input selection unit 3, and the system control unit 7 controls the audio/video analog-to-digital conversion unit 4 of the digital video recording device to receive the corresponding interface input. Audio/video signal, and control audio/video analog-to-digital conversion unit 4 and audio/video decoding unit 5 to work in harmony, process the audio/video signal, convert it into a multimedia file in digital format and save it on the memory card 6 at last . And by this system control unit 7 can set the working state of digital video recorder, make it start to record at a certain moment regularly, a certain TV program or external sound, video signal are recorded.

Of course, the program control memory can also be replaced by other chips with the same or similar functions, as long as it can achieve the coordinated work of each unit of the control digital video device, and control the digital video device to convert the external audio/video signal into a digital format multimedia files and save them on the memory card 6 at last.

Described system control unit 7 is provided with remote control receiving module 13, and system control unit 7 is connected with audio/video decoding unit 5 by remote control receiving module 13, and remote control receiving module 13 is used for transmission (comprising receiving and sending) various control signals , control the audio/video decoding unit 5 to work, the system control unit 7 receives external control instructions through the remote control receiving module 13, and controls the digital video recording device to work.

Described system control unit 7 is also connected with a display screen 12, certainly, this display screen 12 can be the display screen on the DVD player, and system control unit 7 displays the various information of digital video recording device on this display screen 12, The display screen 12 displays the working status and various control parameters of the digital video device.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (8)

1, a kind of digital video recorder of DVD player, it is characterized in that: digital video recorder comprises TV tuner interface (1), audio/video input selection unit (3), audio/video analog-to-digital conversion unit (4), Audio/video decoding unit (5), memory card (6), system control unit (7), TV tuner interface (1), DVD signal source (2) of DVD player, and system control unit (7) are connected to The input end of the audio/video analog-to-digital conversion unit (4), the output end of the audio/video analog-to-digital conversion unit (4) is connected to the input end of the audio/video decoding unit (5), the audio/video decoding unit (5) The input end is also connected with the system control unit (7), power supply (9), program memory (10), data memory (11), and the output end of the audio/video decoding unit (5) is connected with the memory card (6), audio/video Output interface (8) is connected; Described system control unit (7) is also connected with the DVD signal source (2) of TV tuner interface (1), DVD player (2), audio/video input selection unit (3), audio \ The video input selection unit (3) is connected to the DVD signal source (2). 2. A digital video recording device for a DVD player according to claim 1, characterized in that: the output end of the audio/video decoding unit (5) is connected to a mobile memory. 3. A digital video recording device for a DVD player according to claim 1, characterized in that: said system control unit (7) is provided with a remote control receiving module (13), and the system control unit (7) The receiving module (13) is connected with the audio/video decoding unit (5). 4. A digital video recording device for a DVD player according to claim 1, characterized in that: the audio/video analog-to-digital conversion unit (4) is provided with an audio analog-to-digital conversion chip and a video analog-to-digital conversion chip , the model of the audio analog-to-digital conversion chip is WTN9711, and the model of the video analog-to-digital conversion chip is TVP5150. 5. A digital video recording device for a DVD player according to claim 1, characterized in that: the chip model of the audio/video decoding unit (5) is AML7216. 6. A digital video recording device for a DVD player according to claim 1, characterized in that: said system control unit (7) is provided with a program control memory, and the chip model of the program control memory is 89C52. 7. A digital video recording device for a DVD player according to claim 1, characterized in that: the memory card (6) is connected to the audio/video decoding unit (5) through a USB interface, and the memory card (6) For CF card or SD card or MMC card or MS card. 8. A digital video recording device for a DVD player according to claim 1, characterized in that: said system control unit (7) is also connected to a display screen (12).

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