CN2456413Y - Network digital videocorder - Google Patents
Network digital videocorder Download PDFInfo
- Publication number
- CN2456413Y CN2456413Y CN 00245204 CN00245204U CN2456413Y CN 2456413 Y CN2456413 Y CN 2456413Y CN 00245204 CN00245204 CN 00245204 CN 00245204 U CN00245204 U CN 00245204U CN 2456413 Y CN2456413 Y CN 2456413Y
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- digital
- circuit
- conversion circuit
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Abstract
The utility model relates to a network digital videocorder. The utility model comprises a casing, a storage medium and a circuit board which are positioned in the casing. An analogue / digital conversion circuit, a compression circuit, a control circuit, a network controller, a decompression circuit and a digital / analogue conversion circuit are installed on the circuit board. The control circuit is connected with the storage medium and the network controller. When the utility model is use, on one hand, a compressed digital signal which is received is sent to the storage medium to be stored and / or is sent to a network to do remote transmission; on the other hand, a needed digital signal which is taken from the storage medium and / or is downloaded from the network and is sent to the decompression circuit. The utility model is not only convenient to internet, but the utility model can also be assembled with a computer, a tester and other various equipment.
Description
The utility model belongs to video tape recorder, and particularly a kind of image and sound can be shared by network, the digital VTR of remote transmission and local real time record.
Digital VTR is a kind of new product of video tape recorder field appearance in recent years, mainly contains two types with regard to its structure.A kind of is combined, promptly form by image compression card and PC, the image compression card converts analogue audio frequency, vision signal to digital signal and back input PC is handled in compression, realize video recording and video reproduction by PC, the digital video recorder of this type is poor stability not only, and must be supporting with PC, thereby use face be restricted.Another kind is a stand-alone type, mainly form,, use wide though the digital VTR of this type is simple in structure by analog/digital converter, compressor circuit, control circuit, hard disk, decompression circuit and digital/analog converter, but can not be connected with network, influence the remote transmission of image.
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of network digital video machine is provided, and this kind video tape recorder can not only make image, the sound recorded transmit by network remote, realizes that network is shared, and simple in structure, easy to use.
The purpose of this utility model is achieved in that to be improved the stand-alone type digital VTR, sets up network controller in circuit.The network digital video machine that the utility model provides comprises casing, is positioned at the storage medium and the circuit board of casing, and A/D conversion circuit, compressor circuit, control circuit, network controller, decompression circuit and D/A conversion circuit are installed on the circuit board.The connected mode of above-mentioned each circuit and electrical signal conversion, transmit as follows: the output of A/D conversion circuit links to each other with the input of compressor circuit, and received analogue audio frequency, vision signal are converted to digital signal and send into compressor circuit; The output of compressor circuit links to each other with the input of control circuit, and control circuit is handled and sent in received digital signal compression; Control circuit links to each other with storage medium, network controller, on the one hand the compression digital signal that receives is sent into storage medium stores and/or sends into the network remote transmission, on the other hand the needed number signal is taken out and/or from network download from storage medium; The input of decompression circuit links to each other with the output of control circuit, and its output links to each other with the input of D/A conversion circuit, with the compression digital signal reduction of control circuit input and send into D/A conversion circuit; D/A conversion circuit converts the digital signal that receives to analogue audio frequency, vision signal and output.
In order to realize the purpose of invention better, the utility model has also been noted the design of control circuit and selecting for use of chip.Control circuit is made up of master controller, program storage and data storage, and master controller links to each other with program storage, data storage respectively, so that it is temporary or take out signal from two memories as required the signal that receives to be sent into two memories.Master controller is selected the integrated level height for use and is contained the chip of pci controller, USB controller, parallel port controller, serial ports controller, general purpose interface controller.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the front view of the network digital video machine that proposes according to the utility model;
Fig. 2 is the rearview of the network digital video machine that proposes according to the utility model;
Fig. 3 is the circuit structure block diagram of the network digital video machine that proposes according to the utility model;
Fig. 4 is a kind of electrical schematic diagram of the network digital video machine that proposes according to the utility model;
Fig. 5 is a kind of electrical schematic diagram of network controller.
Embodiment:
The contour structures of the network digital video machine in the present embodiment as shown in Figure 1 and Figure 2; Casing 1 is strip and block; Its front panel is provided with mains switch 2, storage medium groove 3, display screen 4 and control button 5; Its rear board is provided with AV signal input interface 6, AV signal output interface 7, storage medium interface 8, network interface 9, peripheral interface 10 and power interface 11.The circuit structure of the network digital video machine in the present embodiment is made up of A/D conversion circuit 12, compressor circuit 13, control circuit 14, network controller 16, decompression circuit 17, digital-to-analog circuit 18 as shown in Figure 3.The concrete structure of above-mentioned each circuit as shown in Figure 4.A/D conversion circuit 12 is made up of video simulation/digital conversion circuit and audio frequency simulation/digital conversion circuit; Video simulation/digital conversion circuit is selected the video A/D converter chip IC for use
1, its model is SAA7113; Audio frequency simulation/digital conversion circuit comprises audio frequency analog to digital converter chip IC
2(model is PCM1800), serial-parallel converter chip IC
3(model is 74LS164) and interface chip IC
4(model is uPD48550S), audio frequency analog to digital converter chip IC
2The simulated audio signal that receives is converted to serial digital signal and sends into the serial-parallel converter chip IC
3, the serial-parallel converter chip IC
3The serial digital signal that receives is converted to parallel digital signal and sends into interface chip IC
4Compressor circuit 13 comprises compression chip IC
5(model is W99200F) and static memory chip IC
6(model is uPD4516161), the static memory chip IC
6Play the buffer memory effect.Control circuit 14 comprises controller chip IC
7(model is MazhZ), flash memory chip IC
8(model is AT29LV020) and static memory chip IC
9(model is uPD4516161), flash memory chip IC
8As program storage, the static memory chip IC
9As data storage.Decompression circuit 17 is selected decoder chips IC for use
10, its model is W9925PF.D/A conversion circuit 18 is made up of digital video/analog conversion circuit and digital audio/analog conversion circuit; Digital video/analog conversion circuit is selected the video dac chip IC for use
11, its model is W9953FTV; Digital audio/analog conversion circuit comprises interface chip IC
12(model is HC2500) and audio digital to analog converter chip IC
13(model is PCM1723), interface chip IC
12With the digital signal input audio digital to analog converter chip IC after the decompression circuit reduction
13, the audio digital to analog converter chip IC
13Digital audio and video signals is converted to simulated audio signal and output.The circuit structure of network controller 16 as shown in Figure 5, by Ethernet interface control chip IC
14(model is CS8900A), ROM chip IC
15(model is 27C256), interface chip IC
16(model is 74LS245), address decoder chip IC
17(model is GAL16V8), isolating transformer and associated peripheral electronic element are formed.Storage medium 15 is selected hard disk for use.
The utlity model has following advantage:
1. owing to be to set up network controller on the basis of stand-alone type digital VTR, thereby not only make the figure that records Picture, sound can pass through network transmission, the realization network is shared, and simple in structure, use wide.
2. master controller in the control circuit has selected integrated level high and contain the chip of various controller, not only is convenient to Net, and can be used in combination with multiple ancillary equipment (such as computer, tester).
3. image resolution ratio is adjustable, and ultimate resolution is 720 * 480.
4. the automaticity height is convenient to video, audio signal digitizing storage and image retrieval and playback.
Claims (5)
1. network digital video machine, comprise casing (1), be positioned at the storage medium (15) and the circuit board of casing, A/D conversion circuit (12), compressor circuit (13), control circuit (14), decompression circuit (17), D/A conversion circuit (18) are installed on the circuit board, it is characterized in that also being equipped with on the circuit board network controller (16)
The output of A/D conversion circuit (12) links to each other with the input of compressor circuit (13), and received analogue audio frequency, vision signal are converted to digital signal and send into compressor circuit,
The output of compressor circuit (13) links to each other with the input of control circuit (14), and control circuit is handled and sent in received digital signal compression,
Control circuit (14) links to each other with storage medium (15), network controller (16), on the one hand the compression digital signal that receives is sent into storage medium stores and/or send into the network remote transmission, on the other hand the needed number signal is taken out and/or from network download from storage medium
The input of decompression circuit (17) links to each other with the output of control circuit (14), and its output links to each other with the input of D/A conversion circuit (18), with the compression digital signal reduction of control circuit input and send into D/A conversion circuit,
D/A conversion circuit (18) converts the digital signal that receives to analogue audio frequency, vision signal and output.
2. network digital video machine according to claim 1 is characterized in that control circuit (14) is by master controller IC
7, program storage IC
8With data storage IC
9Form master controller IC
7Respectively with program storage IC
8, data storage IC
9Link to each other, it is temporary or take out signal from two memories as required the signal that receives to be sent into two memories.
3. network digital video machine according to claim 2 is characterized in that master controller IC
7For containing the chip of pci controller, USB controller, parallel port controller, serial ports controller, general purpose interface controller.
4. network digital video machine according to claim 1, it is characterized in that A/D conversion circuit (12) is made up of video simulation/digital conversion circuit and audio frequency simulation/digital conversion circuit, video simulation/digital conversion circuit is selected the video A/D converter chip IC for use
1, audio frequency simulation/digital conversion circuit comprises audio frequency analog to digital converter chip IC
2, the serial-parallel converter chip IC
3With interface chip IC
4, audio frequency analog to digital converter chip IC
2The simulated audio signal that receives is converted to serial digital signal and sends into the serial-parallel converter chip IC
3, the serial-parallel converter chip IC
3The serial digital signal that receives is converted to parallel digital signal and sends into interface chip IC
4
5. network digital video machine according to claim 1, it is characterized in that D/A conversion circuit (18) is made up of digital video/analog conversion circuit and digital audio/analog conversion circuit, digital video/analog conversion circuit is selected the video dac chip IC for use
11Digital audio/analog conversion circuit comprises interface chip IC
12With the audio digital to analog converter chip IC
13, interface chip IC
12With the digital signal input audio digital to analog converter chip IC after the decompression circuit reduction
13, the audio digital to analog converter chip IC
13Digital audio and video signals is converted to simulated audio signal and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245204 CN2456413Y (en) | 2000-12-04 | 2000-12-04 | Network digital videocorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00245204 CN2456413Y (en) | 2000-12-04 | 2000-12-04 | Network digital videocorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2456413Y true CN2456413Y (en) | 2001-10-24 |
Family
ID=33604737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00245204 Expired - Fee Related CN2456413Y (en) | 2000-12-04 | 2000-12-04 | Network digital videocorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2456413Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100380948C (en) * | 2003-12-25 | 2008-04-09 | 威鲸资讯有限公司 | Remote control video recording apparatus and method |
-
2000
- 2000-12-04 CN CN 00245204 patent/CN2456413Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100380948C (en) * | 2003-12-25 | 2008-04-09 | 威鲸资讯有限公司 | Remote control video recording apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU JIANBANG TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHENGDU QINGHUALIBAO SCIENCE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 610041, No. 2, West Ring Road, Chengdu Patentee after: Chengdu Jian bang technology Co., Ltd. Address before: 610041, No. 2 West Ring Road, Chengdu, Gaosheng building Patentee before: Qinghua Libao Science & Techonlogy Co., Ltd., Chengdu City |
|
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING BEIDAQINGNIAO HUANYU SCIENCE CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHENGDU JIANBANG TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100080, 14 floor, North Pacific Science and technology development center, No. 52 Haidian Road, Beijing, Haidian District Patentee after: Beijing Beida Jade Bird Huanyu Polytron Technologies Inc Address before: 610041, No. 2, Section 1, ring road, Chengdu Patentee before: Chengdu Jian bang technology Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |