CN201118770Y - A digital recorder - Google Patents
A digital recorder Download PDFInfo
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- CN201118770Y CN201118770Y CNU2007200564156U CN200720056415U CN201118770Y CN 201118770 Y CN201118770 Y CN 201118770Y CN U2007200564156 U CNU2007200564156 U CN U2007200564156U CN 200720056415 U CN200720056415 U CN 200720056415U CN 201118770 Y CN201118770 Y CN 201118770Y
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Abstract
The utility model relates to the technique field of a digital video recording device, in particular to a digital video recorder, wherein a television tuner interface and an outside signal source interface on the digital video recorder are connected with an audio/video analog-digital conversion unit, the audio/video analog-digital conversion unit is connected with an audio/video decoding unit, the output end of the audio/video decoding unit is connected with an audio/video output interface and a memory card, an audio/video input selector unit is connected with the outside signal source interface, and a system control unit controls all units to work harmoniously and transmits the outside audio/video signals to the audio/video analog-digital conversion unit for being converted into digital signals, the digital signals are decoded by the audio/video decoding unit and then are compressed and converted into a multimedia file with number format, and the file is stored in the memory card. The digital video recorder has advantages of simple structure, small size and easy carrying and moving, and the memory card or the mobile memory has strong universal property and is convenient to be read.
Description
Technical field:
The utility model relates to the digitizing video equipment technical field, refers in particular to a kind of digital video recorder.
Background technology:
With the development of electronics technology and the raising of people's living standard, various multimedia electronic equipments have been widely used in the every field such as people's work, life.Meanwhile, people also have higher requirement to various electronic equipments.As DVD player, because present DVD player does not have the imprinting function, DVD player can not copy the content on the DVD video disc get off, if the video disc imprinting on the DVD is got off, generally all needs computer just can finish this work; In addition, still does not have at present direct to sounds such as various TV signal, DVD signal the vision signal electronic equipment of directly recording a video, as for TV programme such as the ball match of various excellences, TV play, a lot of people are because the relation of work and daily dinner party, can't in time watch and feel more worry, bring storage how inconvenient for people's live and work.
The utility model content:
The purpose of this utility model is to provide a kind of digital video recorder at the deficiencies in the prior art, and this digital video recorder is the electronic digital video recording, and machine volume is very small and exquisite; video recording is protected in storage card or mobile memory; its highly versatile, easy to use, and be easy to carry and move.
For achieving the above object, the utility model is achieved through the following technical solutions: digital video recorder comprises television high frequency head interface, the external signal source interface, sound video input selected cell, sound the video AD conversion unit, sound video decoding unit, storage card, system control unit, television high frequency head interface, the external signal source interface, system control unit be connected to sound the input of video AD conversion unit, sound the output of video AD conversion unit be connected to sound the input of video decoding unit, sound video decoding unit input also with system control unit, power supply, program storage, data storage connects, sound the output and the storage card of video decoding unit, sound look output interface and connect; Described system control unit also is connected with television high frequency head interface, Yin video input selected cell, and Yin video input selected cell is connected with the external signal source interface.
Perhaps, described sound the output of video decoding unit be connected with mobile memory.
Be provided with the remote control receiver module in the described system control unit, system control unit by remote control receiver module and sound video decoding unit be connected.
Described sound be provided with audio frequency modulus conversion chip and video modulus conversion chip in the video AD conversion unit, the model of audio frequency modulus conversion chip is WTN9711, the model of video modulus conversion chip is TVP5150.
Described sound be provided with in the video decoding unit sound video decoding chip, the model of this chip is AML7216.
Be provided with the program control memory in the described system control unit, the chip model of this program control memory is 89C52.
Described storage card by USB interface and sound video decoding unit be connected, storage card is CF card or SD card or mmc card or MS card.
Described system control unit also is connected with a display screen.
From technique scheme as can be seen, digital video recorder of the present utility model comprises television high frequency head interface, the external signal source interface, sound video input selected cell, sound the video AD conversion unit, sound video decoding unit, storage card, system control unit, television high frequency head interface is connected Yin video AD conversion unit with the external signal source interface, sound the video AD conversion unit connect sound video decoding unit, sound the output of video decoding unit connect sound look output interface and storage card or mobile memory (USB flash disk), Yin video input selected cell connects the external signal source interface, system control unit connects television high frequency head interface, sound video input selected cell, sound the video AD conversion unit, sound video decoding unit, system control unit is controlled each unit co-ordination, with outside sound vision signal input to sound the video AD conversion unit convert digital signal to, this digital signal again through sound the decoding compressed multimedia file that converts number format to of video decoding unit, and this document is stored on storage card or the mobile memory (USB flash disk).Because digital video recorder of the present utility model is the electronic digital video recording, need not mechanical transmission mechanism and photoelectricity Writing device, therefore, machine volume is very small and exquisite, be easy to carry, and not fragile, be convenient to move and use, and with low cost; In addition, storage card of the present utility model or mobile memory (USB flash disk) are the plug and play type memory, various sounds video playback apparatus all can Direct Recognition and read, do not need install driver, also do not need to use special-purpose fetch equipments such as data wire, its highly versatile, and use very convenient fast, in sum, the utility model is simple in structure, volume is small and exquisite, digital video recorder is an EVR, and is not fragile, and storage card or mobile memory highly versatile, be easy to carry and move, and read conveniently.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment:
Embodiment sees accompanying drawing 1, and this digital video recorder comprises television high frequency head interface 1, external signal source interface 2, Yin video input selected cell 3, Yin video AD conversion unit 4, Yin video decoding unit 5, storage card 6, system control unit 7.
Described television high frequency head interface 1, external signal source interface 2 and system control unit 7 are connected to the input of Yin video AD conversion unit 4.Television high frequency head interface 1 and external signal source interface 2 input to Yin video AD conversion unit 4 with the analog signal of outside Yin video, by sound video AD conversion unit 4 handle, convert to corresponding sound video signal so that subsequent treatment.
Described sound be provided with audio frequency modulus conversion chip and video modulus conversion chip in the video AD conversion unit 4, the model of described audio frequency modulus conversion chip is WTN9711, this chip is responsible for converting audio analog signals to audio digital signals, the model of described video modulus conversion chip is TVP5150, and this chip is responsible for converting video analog signal to video signal.Certainly, described audio frequency modulus conversion chip and video modulus conversion chip can also use the chip of other model with identical function to replace respectively, as long as it can reach the purpose that audio analog signals is converted to audio digital signals and video analog signal converted to video signal.
Described television high frequency head interface 1 can insert the TV signal of television set this digital video recorder, this TV signal is an analog signal, by this television high frequency head interface 1 with TV signal input to sound video AD conversion unit 4, by sound video AD conversion unit 4 carry out analog-to-digital conversion process, the analog signal conversion of TV is become digital signal.Perhaps be connected with equipment such as video-frequency monitor, closed-circuit televisions by this television high frequency head interface 1, thus with its signal input to sound video AD conversion unit 4.
Described external signal source interface 2 can insert various outside Yin vision signals, outside sound vision signal be analog signal, external signal source interface 2 inputs to Yin video AD conversion unit 4 with its Yin vision signal that receives, and converts outside Yin vision signal to digital signal.Be connected with the output signal line of DVD player by this external signal source interface 2 as digital video tape recorder, the Yin video AD conversion unit 4 that the DVD signal can be input in the digital video recorder is handled, and the DVD conversion of signals is become digital signal.
Described sound the output of video AD conversion unit 4 be connected to sound the input of video decoding unit 5, sound video decoding unit 5 output and storage card 6, sound look output interface 8 and be connected.Sound video AD conversion unit 4 after will handling audio digital signals and video signal be transferred to sound video decoding unit 5, by sound video decoding unit 5 handle.
Described sound be provided with in the video decoding unit 5 sound video decoding chip, the model of this chip is AML7216.This chip to sound video AD conversion unit 4 carry the audio digital signals and the video signal of coming to decode and encode, and it is compressed into the multimedia file of a number format, after the AML7216 chip decoding audio digital signals and video signal are collapsed into the video file of an AVI form, at last this document are kept on the storage card 6.Certainly, described Yin video decoding chip can also use the chip of other model with identical function to replace, as long as it can reach the audio digital signals that 4 conveyings of Yin video AD conversion unit are come and video signal is decoded and it is compressed into the purpose of the media file of many number formats.
Sound the output of video decoding unit 5 connect storage card 6 or mobile memory (as USB flash disk), storage card 6 is the CF card, described storage card 6 can also be SD card, mmc card, MS card.Because storage card 6 and mobile memory (USB flash disk) are the plug and play type memory, for storage card 6, storage card 6 by the card reader compatible with it can various sounds such as notebook, computer, digital camera, display, television set, DPF use on the video playback apparatus; For mobile memory (USB flash disk), mobile memory (USB flash disk) by its USB interface can be directly with various sounds video playback apparatus be connected, and sound video playback apparatus all can Direct Recognition and read, therefore, its highly versatile, and use very convenient fast, do not need install driver, also do not need to use special-purpose fetch equipments such as data wire.
Therefore, at digital video recorder fully after the video recording work, can directly this storage card 6 or mobile memory (USB flash disk) be pulled up, with its be inserted to other sound playback equipment frequently, can directly read and play the multimedia file on the storage card 6, storage card 6 by card reader and sound frequently playback equipment is connected, mobile memory (USB flash disk) then by its USB interface and sound the frequency playback equipment be connected, convenient and swift, for people's work, life and amusement are provided convenience.
Certainly, at digital video recorder fully after the video recording work, digital video recorder can also by its sound look output interface 8 be connected to sound playback equipment frequently, can sound frequently playback equipment play multimedia file on the storage card 6, because digital video recorder of the present utility model is the electronic digital video recording, need not mechanical transmission mechanism and photoelectricity Writing device, therefore, machine volume is very small and exquisite, be easy to carry, and not fragile, be convenient to move and use, very convenient.
Described sound the input of video decoding unit 5 also be connected with system control unit 7, power supply 9, program storage 10, data storage 11, described system control unit 7 also is connected with television high frequency head interface 1, Yin video input selected cell 3, and Yin video input selected cell 3 connects external signal source interface 2.System control unit 7, power supply 9, program storage 10, data storage 11 are the accessory of digital video recorder, and system control unit 7 is the control centre of digital video recorder, is used to control the work of digital video recorder; Power supply 9 provides working power for each element, and program storage 10 is used for procedure stores, and data storage 11 is used for the interim storage of data.
Be provided with program control memory (CPU) in the described system control unit 7, the chip model of this program control memory is 89C52.This program control memory is in order to control each unit co-ordination of this digital video recorder.By sound video input selected cell 3 select corresponding sound video input interface, the sound of 7 of system control units control digitizing video video AD conversion unit 4 receive the corresponding interface input sound vision signal, and the control sound video AD conversion unit 4 and sound video decoding unit 5 co-ordinations, to this sound vision signal handle, convert thereof into number format multimedia file and be stored at last on the storage card 6.And can set the operating state of digital video recorder by this system control unit 7, it regularly at a time be started record a video, a certain TV programme or outside sound, vision signal are recorded.
Certainly, other chip that described program control memory can also be selected to have same or similar function replaces, as long as it can reach each unit co-ordination of control digital video recorder, the control digital video recorder with outside sound the vision signal multimedia file and being stored at last on the storage card 6 that converts number format to get final product.
Be provided with remote control receiver module 13 in the described system control unit 7, system control unit 7 by remote control receiver module 13 and sound video decoding unit 5 be connected, remote control receiver module 13 is used for the various control signals of transmission (comprise and receive and send), the control sound video decoding unit 5 work, system control unit 7 receives the external control instruction by this remote control receiver module 13, the work of control digital video recorder.
Described system control unit 7 also is connected with a display screen 12, and system control unit 7 is shown in the various information of digital video recorder on this display screen 12, and display screen 12 shows the operating state and the various Control Parameter of this digital video recorder.
The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (8)
1, a kind of digital video recorder, it is characterized in that: digital video recorder comprises television high frequency head interface (1), external signal source interface (2), sound video input selected cell (3), sound video AD conversion unit (4), sound video decoding unit (5), storage card (6), system control unit (7), television high frequency head interface (1), external signal source interface (2), system control unit (7) be connected to sound the input of video AD conversion unit (4), sound the output of video AD conversion unit (4) be connected to sound the input of video decoding unit (5), sound video decoding unit (5) input also with system control unit (7), power supply (9), program storage (10), data storage (11) connects, sound the output and the storage card (6) of video decoding unit (5), sound look output interface (8) and connect; Described system control unit (7) also is connected with television high frequency head interface (1), Yin video input selected cell (3), and Yin video input selected cell (3) is connected with external signal source interface (2).
2, a kind of digital video recorder according to claim 1 is characterized in that: described sound the output of video decoding unit (5) be connected with mobile memory.
3, a kind of digital video recorder according to claim 1, it is characterized in that: be provided with remote control receiver module (13) in the described system control unit (7), system control unit (7) by remote control receiver module (13) and sound video decoding unit (5) be connected.
4, a kind of digital video recorder according to claim 1, it is characterized in that: described sound be provided with audio frequency modulus conversion chip and video modulus conversion chip in the video AD conversion unit (4), the model of audio frequency modulus conversion chip is WTN9711, and the model of video modulus conversion chip is TVP5150.
5, a kind of digital video recorder according to claim 1 is characterized in that: the chip model of described Yin video decoding unit (5) is AML7216.
6, a kind of digital video recorder according to claim 1 is characterized in that: described system control unit is provided with the program control memory in (7), and the chip model of this program control memory is 89C52.
7, a kind of digital video recorder according to claim 1 is characterized in that: described storage card (6) by USB interface and sound video decoding unit (5) be connected, storage card (6) is CF card or SD card or mmc card or MS card.
8, a kind of digital video recorder according to claim 1 is characterized in that: described system control unit (7) also is connected with a display screen (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200564156U CN201118770Y (en) | 2007-08-31 | 2007-08-31 | A digital recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200564156U CN201118770Y (en) | 2007-08-31 | 2007-08-31 | A digital recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201118770Y true CN201118770Y (en) | 2008-09-17 |
Family
ID=39993369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200564156U Expired - Fee Related CN201118770Y (en) | 2007-08-31 | 2007-08-31 | A digital recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201118770Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685427A (en) * | 2011-03-10 | 2012-09-19 | 郑州大学 | Embedded digital video mobile storage controller and video monitoring storage system |
-
2007
- 2007-08-31 CN CNU2007200564156U patent/CN201118770Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102685427A (en) * | 2011-03-10 | 2012-09-19 | 郑州大学 | Embedded digital video mobile storage controller and video monitoring storage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080917 Termination date: 20120831 |