CN102833507A - Video recording device - Google Patents
Video recording device Download PDFInfo
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- CN102833507A CN102833507A CN2012102538382A CN201210253838A CN102833507A CN 102833507 A CN102833507 A CN 102833507A CN 2012102538382 A CN2012102538382 A CN 2012102538382A CN 201210253838 A CN201210253838 A CN 201210253838A CN 102833507 A CN102833507 A CN 102833507A
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- 238000004088 simulation Methods 0.000 description 25
- 238000010586 diagram Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
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Abstract
The invention discloses a video recording device, which comprises a display card, a video recording hard press card and a storage device. The display card is used for generating video signals. The video recording hard card and the display card are installed in a computer to be recorded together, and the video recording hard card comprises a video loop-through unit and a bridge. The video loop-through unit is used for capturing video signals from the display card and sending the video signals to the bridge and a display device. The storage device is electrically connected to the bridge and is used for storing the video signal.
Description
Technical field
The invention relates to a kind of recording device, and particularly relevant for a kind of recording device that is used to record computer picture.
Background technology
Flourish along with Computer Multimedia Technology, the modern gives up gradually and sees film on TV or the lifestyle of playing games or the like, and uses the computer film instead or play games.Yet traditional recording device major part is to make video recording to television image, and can't record film or the game process on the computer screen.The method that computer picture is made video recording so there is part manufacturer to develop.
In general, the picture acquisition software capable of using (for example software such as
or
) of making video recording of computer picture captures the instant picture of computer and does audio-visual compression.Yet; This picture acquisition software is very big for the demand of memory body, when playing film or carrying out games, if also will carry out picture acquisition software simultaneously; Not only can take the resource of a large amount of processors, even can influence the movie or the fluency of recreation execution.
Except above-described picture acquisition software, also can the picture of the computer screen of being made video recording be exported to external hardware devices such as another computer or the box of making video recording and do and make video recording.Yet such practice certainly will will extraly again buy more at least one computer or the box of making video recording just can carry out, and will promote the burden on the cost far and away, and is also comparatively loaded down with trivial details in the operation.
Summary of the invention
In view of this; A purpose of the present invention is that a kind of recording device that is used to record computer picture is being provided, and the one of which purpose is to be to overcome the existing all inconvenience of mode (for example: consume processor resource or buy more computer in addition or the cost of box or the like of making video recording) of making video recording of traditional computer picture
In order to achieve the above object; According to an execution mode of the present invention, a kind of recording device that is used to record the display frame of computer comprises a display card (graphics card), hard card (hardware recorder card) and the storage device of pressing of making video recording.Display card is in order to produce vision signal.Hard card and the display card of pressing of making video recording is installed in the computer jointly, and the hard card of pressing of making video recording comprises a logical unit (Video Loop-through unit) of a video ring and a bridger.The logical unit of video ring is in order to deliver to a bridger and a display unit from display card acquisition vision signal and branch.Storage device is to be electrically connected to bridger, and it is in order to store vision signal.
According to another embodiment of the present invention, a kind of recording device that is used to record the display frame of computer comprises a display card, a hard card and the network interface of pressing of making video recording.Display card is in order to produce vision signal.Making video recording, hard to press card be to be installed in the computer jointly with display card, and the hard card of pressing of making video recording comprises a logical unit of a video ring and a bridger.The logical unit of video ring is in order to deliver to a bridger and a display unit from display card acquisition vision signal and branch.Network interface is to be electrically connected to bridger, and it is in order to vision signal is sent to network.
Through above-mentioned execution mode, the present invention can install the hard card of pressing of making video recording in computer, and it is a vision signal of being compressed, captured computer picture by hardware structure, rather than sees through software, therefore can not take the resource of processor and memory body.In addition, the present invention only needs in computer, to install to make video recording and presses card to make video recording firmly, and need not extraly buy more another computer or make video recording box, more can reduce consumer's cost burden.
The above only is in order to setting forth problem, the technological means of dealing with problems that institute of the present invention desire solves and the effect that produces thereof or the like, introduces in detail in execution mode that detail of the present invention will be hereinafter and the relevant drawings.
Description of drawings
For letting above-mentioned and other purposes of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 illustrates the system block diagrams according to the recording device of an embodiment of the present invention;
Fig. 2 illustrates the system block diagrams according to the recording device of another execution mode of the present invention;
Fig. 3 illustrates the system block diagrams according to the recording device of the another execution mode of the present invention;
Fig. 4 illustrates the system block diagrams of the recording device of an execution mode again according to the present invention.
[main element symbol description]
100: main frame
110: display card
120: the hard card of pressing of making video recording
121: the video ring leads to the unit
122: the video simulation digital quantizer
123: hardware coder
124: bridger
125: Audio Loop leads to the unit
126: the audio frequency simulation digital quantizer
130: storage device
140: the message card
150: network interface
200: display unit
300: public address set
Embodiment
Below will disclose a plurality of execution mode of the present invention with accompanying drawing, for the purpose of offering some clarification on, the details on many practices will explanation in the lump in following narration.Yet those of ordinary skill in the art should recognize that in part execution mode of the present invention, the details on these practices is also non-essential, does not therefore use with restriction the present invention.In addition, for the purpose of simplifying accompanying drawing, some known habitual structures and element will illustrate with the mode of simple signal in the accompanying drawings.
Fig. 1 illustrates the system block diagrams according to the recording device of an embodiment of the present invention.As shown in the figure, the recording device of this execution mode can comprise a display card 110, hard card 120 and one storage device 130 of pressing of making video recording.Display card 110 is in order to produce vision signal.Hard card 120 and the display card 110 of pressing of making video recording is installed in the computer jointly, and the hard card 120 of pressing of making video recording comprises a logical unit 121 (Video Loop-through unit) of a video ring and a bridger 124.The logical unit 121 of video ring is in order to deliver to a bridger 124 and a display unit 200 from display card 110 acquisition vision signals and branch.Storage device 130 is to be electrically connected to the hard bridger 124 of pressing card 120 of making video recording, and it is in order to store vision signal.
In this execution mode, display card 110 is to be installed in the computer jointly with the hard pressure card 120 of making video recording.For example, the display card 110 and the hard card 120 of pressing of making video recording can be installed in the main frame 100 together, so the consumer need not extraly purchase a computer or the box of making video recording, can see through the hard card 120 of pressing of making video recording and make video recording.In addition, because the hard card 120 of pressing of making video recording itself just disposes chip and can supply computing, so need not need the resource of consumption calculations machine processor as traditional software of making video recording for hardware device.
In this execution mode, recording device can further comprise a video simulation digital quantizer 122, and (Analog to Digital Converter, ADC), it is in order to convert vision signal into digital form by analog form.Particularly; Display card 110 can see through Video Graphics Array (Video Graphic Array; VGA) interface, Digital Visual Interface (Digital Visual Interface; DVI), high-res multimedia interface (High-Definition Multimedia Interface; HDMI) or display port (Display Port) or the like coffret vision signal is sent to the logical unit 121 of video ring with analog form, display unit 200 and bridger 124 can be delivered to the vision signal branch of this analog form in the logical unit 121 of video ring.In addition, this execution mode is provided with a video simulation digital quantizer 122 again behind the logical unit 121 of video ring, convert digital form into the vision signal with analog form, is beneficial to the storage of subsequent storage device 130.
In this execution mode, the logical unit 121 of video ring can be tapped into video simulation digital quantizer 122 and display unit 200, and it can be sent to video simulation digital quantizer 122 and display unit 200 in order to the vision signal with display card 110 respectively.The vision signal of the digital form that video simulation digital quantizer 122 is produced can see through bridger 124 and be sent to storage device 130.Therefore, when display unit 200 was play computer pictures, storage device 130 can be simultaneously or is stored the data (like vision signal) of this computer picture subsequently.
Above-mentioned video simulation digital quantizer 122 can be realized by the circuit design of various different simulation digital translation; For example; This analog digital switch technology can be counter (Counting ADC), continuous asymptotic expression (Successive-Approximation ADC), parallelly connected comparison expression (Parallel-Comparator ADC) and diclinic rate formula analog-to-digital conversion circuits such as (Dual-Slope ADC, or title proportion expression ratiometer ADC).The producer can select for use above various circuit design to realize video simulation digital quantizer 122 according to its product demand, but above mode of lifting is merely illustration, not as limit.
In this execution mode, recording device can further comprise a hardware coder 123 (Hardware Encoder claims HW Encoder again), and it is in order to encoding video signal.Particularly, hardware coder 123 is the downstream that are connected in video simulation digital quantizer 122, the vision signal of the digital form that is produced with receiver, video analog-digital converter 122 and to this encoding video signal.
Above-mentioned hardware coder 123 can be by a central processing unit (CPU) or microprocessor) or digital signal processor (digital signal processor; DSP) or specially be used as the asic chip or the above combination arbitrarily of audio-visual coding; The minority of arranging in pairs or groups again hardware circuit realizes that it can be designed to be responsible for specially the hardware unit of carrying out the coding action.Because the general mode of making video recording that sees through software must be gone to carry out the coding action by the processor of software command computer; So can take the central processing unit resource of main frame 100; Yet; Because execution mode of the present invention is to adopt hardware coder 123; Its hardware resource (like central processing unit, microprocessor, digital signal processor or asic chip or the like) capable of using itself is encoded, thus can not take the central processing unit resource of main frame 100, thus help to be lifted at the fluency of movie when making video recording or recreation execution.H.263 or H.264 or the like in the part execution mode, hardware coder 123 can be encoded by corresponding different-format, and its form can be including, but not limited to Divx, Xvid.
In this execution mode, bridger 124 can be as the hard connecting interface of pressing between card 120 and the storage device 130 of making video recording, and it is to be sent to storage device 130 in order to the vision signal after hardware coder 123 is coded.In the part execution mode, but interface specifications such as bridger 124 accord with PCI, PCIe, USB, PCMCIA or Express card, but not as limit.When recognizing also should have corresponding connecting interface on the storage device 130, receive data in addition to connect bridger 124.In this execution mode, storage device 130 can be including, but not limited to hard disk, dish or other types storage device or the like with oneself.
Fig. 2 illustrates the system block diagrams according to the recording device of another execution mode of the present invention.This execution mode is to be that this execution mode can further comprise a message card 140 with the main difference of Fig. 1, and the hard card 120 of pressing of making video recording comprises the logical unit 125 (Audio Loop-through Unit) of an Audio Loop.Message card 140 is in order to produce audio signal.The logical unit 125 of Audio Loop is in order to deliver to a bridger 124 and a public address set 300 from message card 140 these audio signals of acquisition and branch.Storage device 130 can come the stored audio signal through bridger 124.Whereby, the recording device of this execution mode not only can be recorded computer picture, more can further record computer institute sound played data.
In this execution mode, recording device can further comprise an audio frequency simulation digital quantizer 126, and it is in order to convert audio signal into digital form by analog form.Particularly, message card 140 can see through interfaces such as L/R audio or S/PDIF audio signal is sent to the logical unit 125 of Audio Loop with analog form, and public address set 300 and bridger 124 can be delivered to the vision signal branch of this analog form in the logical unit 125 of Audio Loop.In addition, this execution mode is provided with an audio frequency simulation digital quantizer 126 again behind the logical unit 125 of Audio Loop, convert digital form into the audio signal with analog form, is beneficial to the storage of subsequent storage device 130.
In this execution mode, the logical unit 125 of Audio Loop can be tapped into audio frequency simulation digital quantizer 126 and public address set 300, and it can be sent to audio frequency simulation digital quantizer 126 and public address set 300 in order to the audio signal with message card 140 respectively.The audio signal of the digital form that audio frequency simulation digital quantizer 126 is produced can see through bridger 124 and be sent to storage device 130.Therefore, when public address set 300 was play message, storage device 130 can be simultaneously or is stored the data (like audio signal) of this message subsequently.
Above-mentioned audio frequency simulation digital quantizer 126 can be realized by the circuit design of various different simulation digital translation; For example; This analog digital switch technology can be counter (Counting ADC), continuous asymptotic expression (Successive-Approximation ADC), parallelly connected comparison expression (Parallel-Comparator ADC) and diclinic rate formula analog-to-digital conversion circuits such as (Dual-Slope ADC, or title proportion expression ratiometer ADC).The producer can select for use above various circuit design to realize audio frequency simulation digital quantizer 126 according to its product demand, but above mode of lifting is merely illustration, not as limit.
In addition, hardware coder 123 is except can also producing the coding audio signal of digital forms to audio frequency simulation digital quantizer 126 to the coding video data of video simulation digital quantizer 122 generations.In other words, hardware coder 123 also can be arranged at the downstream of audio frequency simulation digital quantizer 126, with the audio signal that receives digital form and encode, in order to the storage of storage device 130.
Fig. 3 illustrates the system block diagrams according to the recording device of the another execution mode of the present invention.This execution mode is similar haply with Fig. 1, and both main difference is to be that this execution mode is to utilize a network interface 150 to replace the storage device 130 of Fig. 1.Particularly, the network interface 150 of this execution mode is to be electrically connected to the hard bridger 124 of pressing card 120 of making video recording, and it is in order to vision signal is sent to network from bridger 124.Whereby, vision signal can see through network interface 150 and is sent to another computer or server and does immediately monitoring or make video recording.
In the part execution mode, network interface 150 can further comprise a ciphering unit (not illustrating), and it can be in order to encrypt (encrypt) vision signal, to guarantee its fail safe.
The display card 110 of this execution mode, display unit 200, press card 120 and make video recording that all the execution mode with Fig. 1 is identical for the logical unit 121 of hard video ring of pressing card 120 to be comprised, video simulation digital quantizer 122, hardware coder 123 and bridger 124 firmly with making video recording; Its annexation and make flowing mode and can not repeat to give unnecessary details at this with reference to the corresponding character narrate of figure 1.
Fig. 4 illustrates the system block diagrams of the recording device of an execution mode again according to the present invention.This execution mode is similar haply with Fig. 2, and both main difference is to be that this execution mode is to utilize a network interface 150 to replace the storage device 130 of Fig. 2.Particularly, the network interface 150 of this execution mode is to be electrically connected to the hard bridger 124 of pressing card 120 of making video recording, and it is in order to vision signal and audio signal are sent to network from bridger 124.Whereby, vision signal and audio signal can see through network interface 150 and be sent to another computer or server and do immediately monitoring or make video recording.
In the part execution mode, network interface 150 can further comprise a ciphering unit (not illustrating), and it can be in order to encrypt (encrypt) vision signal and audio signal, to guarantee its fail safe.
The display card 110 of this execution mode, message card 140, display unit 200, public address set 300 and make video recording and hard press card 120 and all the execution mode with Fig. 2 is identical with audio frequency simulation digital quantizer 126 the logical unit of the make video recording logical unit 121 of hard video ring of pressing card 120 to be comprised, video simulation digital quantizer 122, hardware coder 123 and bridger 124, Audio Loop 125; Its annexation and make flowing mode and can not repeat to give unnecessary details at this with reference to the corresponding character narrate of figure 2.
In one or more execution mode of the present invention; Display unit 200 can comprise but be not limited to display panels (Liquid Crystal Display; LCD), plasma display (Plasma Display Panel; PDP), organic light emitting diode display (Organic Light Emitting Diode, OLED) or cathode-ray tube display (Cathode Ray Tube, CRT) or the like.
In one or more execution mode of the present invention, public address set 300 can comprise but be not limited to loud speaker, loudspeaker or earphone or the like.
Though the present invention discloses as above with execution mode; Right its is not in order to limit the present invention; Anyly be familiar with this art; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102538382A CN102833507A (en) | 2012-07-20 | 2012-07-20 | Video recording device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102538382A CN102833507A (en) | 2012-07-20 | 2012-07-20 | Video recording device |
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| CN102833507A true CN102833507A (en) | 2012-12-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104008003A (en) * | 2013-02-27 | 2014-08-27 | 联想(北京)有限公司 | Information processing method and electronic device |
| CN106506985A (en) * | 2015-09-08 | 2017-03-15 | 北京东方久瑞系统工程技术有限公司 | A kind of realize that 4K ultra high-definition video rings are held high office the method that shows |
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| CN106506985A (en) * | 2015-09-08 | 2017-03-15 | 北京东方久瑞系统工程技术有限公司 | A kind of realize that 4K ultra high-definition video rings are held high office the method that shows |
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Application publication date: 20121219 |