CN105391963A - Digital image recording and playing machine and recording and playing method thereof - Google Patents
Digital image recording and playing machine and recording and playing method thereof Download PDFInfo
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- CN105391963A CN105391963A CN201410452550.7A CN201410452550A CN105391963A CN 105391963 A CN105391963 A CN 105391963A CN 201410452550 A CN201410452550 A CN 201410452550A CN 105391963 A CN105391963 A CN 105391963A
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Abstract
The invention provides a digital image recording and playing machine and a recording and playing method thereof, and the recording and playing machine is provided with a first decoding module, a second decoding module, and an image processing module. The first and second decoding modules are respectively used for decoding a video signal into a first image signal and a second image signal. When the first image signal or the second image signal is correct, a first indication signal and a second indication signal are generated. The image processing module selectively outputs the first image signal or the second image signal according to the first indication signal or the second indication signal. The other recording and playing machine is provided with a first decoding module, a second decoding module, and an image processing module. The first and second decoding modules respectively decode the video signal at a first format and a second format. When the decoding is correct, the first image signal or the second image signal is generated. The image processing module outputs the first image signal or the second image signal.
Description
Technical field
The present invention relates to a kind of digitized video Video Recorder and its recording playback image method, particularly a kind ofly synchronously carry out the digitized video Video Recorder of decoding and its recording playback image method with the decoder module of multiple unlike signal form.
Background technology
Digitized video Video Recorder (DigitalVideoRecorder, DVR) mainly apply in supervisory control system, in order to receive the vision signal that multiple stage video camera captures, vision signal is decoded as digital image signal, is stored in storage device or is shown in video display.
The vision signal that video camera captures may have multiple different signal format, as single-definition analog signal (AnalogStandardDefinition) or hd digital signal (HighDefinition-SerialDigitalInterface, HD-SDI).When digitized video Video Recorder receives vision signal, need, according to different video signal formats, to carry out the decoding of signal with the decoder of unlike signal form.Digitized video Video Recorder known at present can only singly be decoded with regard to a kind of video signal format.To carry out the decoding of multiple format, just need to perform with can the decode digitized video Video Recorder of different video form of multiple stage, make connection line quite complicated, cost also relatively increases.
Because existing digitized video Video Recorder cannot carry out the problem of multi-signal form decoding simultaneously, be necessary in fact to invent a kind of can digitized video Video Recorder, can decoded video signal in a different format, promote the practicality of digitized video Video Recorder.
Summary of the invention
The object of the present invention is to provide a kind of digitized video recording playback image method, utilize and vision signal synchronous driving is decoded to the multiple decoder module of digitized video Video Recorder inside, and judged whether to be correctly decoded vision signal by decoder module, described digitized video Video Recorder internal circuit is more simplified, and practicality is more extensive.
The present invention proposes a kind of digitized video recording playback image method and comprises vision signal is decoded as the first signal of video signal, and when the first decoder module is correctly decoded vision signal, produces the first index signal.Vision signal is decoded as the second signal of video signal, when the second decoder module is correctly decoded vision signal, produces the second index signal.According to the first index signal or the second index signal, optionally export the first signal of video signal or the second signal of video signal.
The present invention separately provides a kind of digitized video recording playback image method to comprise decoded video signal, when being correctly decoded vision signal, produce the first signal of video signal, decoded video signal, when being correctly decoded vision signal, produce the second signal of video signal, and export the first signal of video signal or the second signal of video signal that receive.
The invention provides a kind of digitized video Video Recorder, utilize the first decoder module and the second decoder module synchronous decoding vision signal, and judged whether to be correctly decoded vision signal by the first decoder module and the second decoder module, described digitized video Video Recorder internal circuit is simplified, and practicality is more extensive.
The invention provides a kind of digitized video Video Recorder, comprise the first decoder module, the second decoder module and image processing module, wherein the first decoder module is in order to receiving video signals, and vision signal is decoded as the first signal of video signal.When the first decoder module is correctly decoded vision signal, produce the first index signal.Vision signal in order to receiving video signals, and is decoded as the second signal of video signal by the second decoder module.When the second decoder module is correctly decoded vision signal, produce the second index signal.Image processing module in order to receive the first signal of video signal and the second signal of video signal, and according to the first index signal or the second index signal, optionally exports the first signal of video signal or the second signal of video signal.
The present invention separately provides a kind of digitized video Video Recorder, comprise the first decoder module, the second decoder module and image processing module, wherein the first decoder module is in order to receiving video signals, and vision signal is decoded as the first signal of video signal, when the first decoder module is correctly decoded vision signal, export the first signal of video signal.Vision signal in order to receiving video signals, and is decoded as the second signal of video signal by the second decoder module, when the second decoder module is correctly decoded vision signal, exports the second signal of video signal.Image processing module couples the first decoder module and the second decoder module, in order to export the first signal of video signal or the second signal of video signal that receive.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
The block diagram of the digitized video Video Recorder that Fig. 1 draws according to one embodiment of the invention;
The flow chart of the digitized video recording playback image method that the embodiment of Fig. 2 according to Fig. 1 is drawn;
The block diagram of the digitized video Video Recorder that Fig. 3 draws according to another embodiment of the present invention;
The flow chart of the digitized video recording playback image method that the embodiment of Fig. 4 according to Fig. 3 is drawn;
The block diagram of the digitized video Video Recorder that Fig. 5 is drawn according to yet another embodiment of the invention.
Wherein, Reference numeral
10,30,50 image receiver modules
12,32,52 first decoder modules
14,34,54 second decoder modules
16,36 image processing modules
56 the 3rd decoder modules
58 image processing modules
Embodiment
Below detailed features of the present invention and advantage is described in embodiments in detail, its content is enough to make any relevant art of haveing the knack of understand technology contents of the present invention and implement according to this, and content, right and the accompanying drawing disclosed by this specification, any relevant art of haveing the knack of can understand the object and advantage that the present invention is correlated with easily.Embodiment below further describes viewpoint of the present invention, but non-to limit category of the present invention anyways.
Please refer to Fig. 1, the block diagram of the digitized video Video Recorder that Fig. 1 draws according to one embodiment of the invention, as shown in Figure 1, digitized video Video Recorder of the present invention comprises image receiver module 10, first decoder module 12, second decoder module 14 and image processing module 16, wherein image receiver module 10 is coupled to the first decoder module 12 and the second decoder module 14, first decoder module 12 and the second decoder module 14 and is coupled to individually image processing module 16 again.In practice, image receiver module 10 is connected to multiple vision signal source, the vision signal received is sent to the first decoder module 12 and the second decoder module 14, the result of decoding is sent to image processing module 16 by the first decoder module 12 and the second decoder module 14, is exported the device of outside by image processing module 16.
Image receiver module 10 mode of wireless transmission or wire transmission can receive the vision signal that external device (ED) exports, and such as cable television system, network camera, supervision video camera or other suitable devices, the present invention is not limited.
Vision signal is decoded as the first signal of video signal by the first decoder module 12 in the first format, and when first signal of video signal of decoding is correct, produces the first index signal.For example, first decoder module 12 can be but not be restricted to hd digital signal (HighDefinition-SerialDigitalInterface, HD-SDI) as the decoder of the first form, the high-definition digital signal that can receive in order to image receiver module of decoding.When the vision signal received is hd digital signal form, the first decoder module 12 can be correctly decoded vision signal, and produces the first index signal.
Vision signal is decoded as the second signal of video signal by the second decoder module 14 in the second format.When the second signal of video signal that the second decoder module 14 is decoded is correct, produce the second index signal.For example, second decoder module 14 can be but not be restricted to the accurate definition analog signal of height (AnalogHighDefinition, AHD) as the decoder of the second form, the SD analog signal that can receive in order to image receiver module of decoding and high definition analog signal.When the vision signal that the second decoder module receives be SD analog signal format or high definition analog signal format time, the second decoder module can be correctly decoded, and produces the second correct signal of video signal and the second index signal.
Image processing module 16 is in order to receive the first decoder module 12 and decoded first signal of video signal of the second decoder module 14 and the second signal of video signal, and according to the first index signal or the second index signal, optionally export the first signal of video signal or the second signal of video signal.Image processing module 16 is coupled to outside image storage device or image and dials and put device, and such as hard disc, television set, display or other suitable devices, the present invention is not limited.When after the first decoder module 12 and the second decoder module 14 decoded video signal, decoded first signal of video signal or the second signal of video signal transferred to external image storage device or image by image processing module 16 and dial and put on device.The method of below putting up with described digitized video Video Recorder decoded video signal is described.
Please with reference to the flow chart of the digitized video recording playback image method that Fig. 1 and Fig. 2, Fig. 2 embodiment according to Fig. 1 is drawn, as shown in Figure 2, in step S20, image receiver module 10 receives the vision signal from external device (ED).In step S22, vision signal is decoded as the first signal of video signal, when the first signal of video signal is correct, produces the first index signal.And vision signal is decoded as the second signal of video signal, when the second signal of video signal is correct, produce the second index signal.In this step S22, can further be included in after vision signal is decoded as the first signal of video signal, judge that whether the first signal of video signal is correct with the first detecting signal unit (not shown), wherein when the first signal of video signal is correct, the first detecting signal unit produces the first index signal.
In step S24, according to the first index signal or the second index signal, optionally export the first signal of video signal or the second signal of video signal.In practice, the first index signal of decoded first signal of video signal and generation when being correctly decoded is sent to image processing module 16 by the first decoder module 12.Second index signal of decoded second signal of video signal and generation when being correctly decoded also is sent to image processing module 16 by the second decoder module 14.Image processing module 16 receives the first signal of video signal and the second signal of video signal, and according to the first index signal received or the second index signal, optionally exports the first signal of video signal or the second signal of video signal.With embodiment shown in the drawings, in step S241, when image processing module 16 receives the first index signal, image processing module 16 exports the first signal of video signal and dials to external image storage device or image and put device, in step S245, when image processing module 16 receives the second index signal, image processing module 16 exports the second signal of video signal and dials to external image storage device or image and put device.In step S243, when image processing module 16 does not receive the first index signal and the second index signal, image processing module 16 does not export any image and dials to external image and put device, or output error message is dialled to external image and put device, and the present invention is not limited this.
The example specifically implemented with one illustrates, when image receiver module 10 receives vision signal, described digitized video Video Recorder not yet judges the form of vision signal, therefore by video signal transmission to the first decoder module 12 and the second decoder module 14, by the first decoder module 12 and the second decoder module 14 decoded video signal simultaneously, to save the time of video signal format of judging, or the time avoiding elder generation may waste to attempt decoded video signal with wherein a kind of video signal format.
Are hd digital signal decoders with the first decoder module 12, the second decoder module 14 is high accurate definition analog signals.When the vision signal of input one simulation is in described digitized video Video Recorder, image receiver module 10 does not first judge the video signal format received, and directly by video signal transmission to the first decoder module 12 that do not judge and the second decoder module 14.
When the vision signal of the first decoder module 12 decoded analog, the first decoder module cannot be correctly decoded the vision signal of simulation, produces the first signal of video signal of mistake.And the second decoder module 14 is when decoding the analog video signal received, successfully produce the second correct signal of video signal and the second index signal.First signal of video signal, the second signal of video signal and the second index signal are sent to image processing module 16 by the first decoder module 12 and the second decoder module 14.Image processing module 16, according to the second index signal received, exports the second signal of video signal and dials to external image storage device or image and put device, and ignore the first signal of video signal.
It should be noted that the first index signal described in the present embodiment and the second index signal are the correctness of instruction first signal of video signal or the second signal of video signal.First index signal and the second index signal can also be the first signal of video signal or the second signal of video signal mistake time the index signal that produces.In another embodiment, first decoder module 12 or the second decoder module 14 more can when the first signal of video signal or the second signal of video signal, produce the index signal indicating and be correctly decoded, when the first signal of video signal or the second signal of video signal mistake, produce the index signal of misdirection decoding, the present invention is not limited this.
Please refer to Fig. 3, the block diagram of the digitized video Video Recorder that Fig. 3 draws according to another embodiment of the present invention, as shown in Figure 3, described digitized video Video Recorder comprises image receiver module 30, first decoder module 32, second decoder module 34 and image processing module 36, wherein image receiver module 30 is identical haply with previous embodiment, and it will not go into details.
In previous embodiment unlike, the first decoder module 32 and the second decoder module 34 are after coupling, and are coupled to image processing module 36 in the lump.
First decoder module 32 is in order to foundation the first form decoded video signal.When the first decoder module 32 can in the first format decoded video signal time, the first decoder module 32 produces the first signal of video signal.For example, when the first decoder module 32 is hd digital signal decoders, the first form is the coded format of hd digital signal.Carry out decoded video signal with hd digital signal coded format, if vision signal is also hd digital signal, then the first decoder module 32 can be correctly decoded vision signal, produces the first signal of video signal.
Second decoder module 34, in order to according to the second form decoded video signal, when being correctly decoded this vision signal, produces the second signal of video signal.Second form can be high accurate definition analog signal coded format, but not as limit.
Image processing module 36 is coupled to the first decoder module 32 and the second decoder module 34, in order to receive the first signal of video signal or the second signal of video signal, and exports the first signal of video signal received or the second signal of video signal to external device (ED).
Please with reference to the 1st figure and the 4th figure, the flow chart of the digitized video recording playback image method that the embodiment of the 4th figure system according to the 3rd figure is drawn, as shown in Figure 4, in step S40, image receiver module 30 receives the vision signal from external device (ED), and vision signal is sent to the first decoder module 32 and the second decoder module 34.
In the first decoder module 32, in step S42, decoded video signal in the first format.In step S44, judge whether vision signal is correctly decoded.In step S441, when vision signal is correctly decoded, produce the first signal of video signal, and the first signal of video signal is sent to image processing module 36.In step S443, when vision signal is not correctly decoded, the first decoder module 32 stops decoded video signal.
In the second decoder module 34, in step S46, the second decoder module 34 is synchronous with the first decoder module 32, decoded video signal in the second format.In step S48, judge whether vision signal is correctly decoded.In step 481, when vision signal is correctly decoded, produce the second signal of video signal, and the second signal of video signal is sent to image processing module 36.In step S483, when the second decoder module 34 cannot be correctly decoded vision signal, the second decoder module 34 stops decoded video signal.
In step S50, image processing module 36 exports the first signal of video signal or the second signal of video signal that receive.In practice, the first signal of video signal received or the second signal of video signal are exported to outside device to store or to show the first signal of video signal or the second signal of video signal by image processing module 36.
In first decoder module 32 and the second decoder module 34, also can be respectively equipped with the first detecting signal unit and secondary signal detecting unit.First detecting signal unit and the second detecting unit detect the first decoder module or whether the second decoder module is correctly decoded vision signal, when vision signal is correctly decoded, export the first signal of video signal produced or the second signal of video signal to image processing module 36, otherwise do not export the first signal of video signal or the second signal of video signal.
With the example of reality, the first decoder module 32 can be but not be restricted to hd digital signal decoder, the second decoder module 34 can depending on but be not restricted to high accurate definition analog signal.When inputting the vision signal of a high-definition digital from external device (ED) in described digitized video Video Recorder, image receiver module 30 will not judge that the vision signal of high-definition digital or simulation is sent to the first decoder module 32 and the second decoder module 34.Now, the first decoder module 32 can be correctly decoded the vision signal of self imaging receiver module 30.Vision signal is decoded as the first signal of video signal and is sent to image processing module 36 by the first decoder module 32, the first signal of video signal is sent to external image dials and put device by image processing module 36.And the second decoder module 32 is owing to cannot be correctly decoded the vision signal of self imaging receiver module 30, therefore stop decoded video signal, and do not produce the second signal of video signal.
In this embodiment, when the first decoder module 32 and the second decoder module 34 all cannot be correctly decoded vision signal, the vision signal that expression inputs does not meet the form that described digitized video Video Recorder can be decoded, therefore described digitized video Video Recorder not show image or output error message.
Described digitized video Video Recorder, except the first decoder module and the second decoder module, still can comprise the 3rd decoder module.When described digitized video Video Recorder comprises the 3rd decoder module, described digitized video Video Recorder can operate by flow chart as shown in figures 2 or 4, and just the method shown in Fig. 2 illustrates the digitized video Video Recorder and the recording playback image method that comprise the 3rd decoder module below.
Please refer to Fig. 5, the block diagram of the digitized video Video Recorder that Fig. 5 is drawn according to yet another embodiment of the invention, as shown in Figure 5, described digitized video Video Recorder comprises image receiver module 50, first decoder module 52, second decoder module 54, the 3rd decoder module 56 and image processing module 58, wherein be provided with the first detecting signal unit 521 in the first decoder module 52, be provided with in second decoder module 54 in secondary signal detecting unit the 541, three decoder module 56 and be provided with the 3rd detecting signal unit.
When image receiver module 50 receives the vision signal from external device (ED), give the first decoder module 52, second decoder module 54 and the 3rd decoder module 56 by vision signal synchronous transmission.The vision signal that first decoder module 52, second decoder module 54 and the 3rd decoder module 56 synchronously will receive, is decoded as the first signal of video signal, the second signal of video signal and the 3rd signal of video signal respectively.
When the first signal of video signal that the first decoder module 52 is decoded is correct, produce the first index signal.When the second signal of video signal that the second decoder module 54 is decoded is correct, produce the second index signal.When the 3rd signal of video signal that the 3rd decoder module 56 is decoded is correct, produce the 3rd index signal.
Image processing module 58 receives the first signal of video signal, the second signal of video signal and the 3rd signal of video signal, and according to the first index signal, the second index signal or the 3rd index signal that receive, optionally export the first signal of video signal, the second signal of video signal or the 3rd signal of video signal.
When image processing module 58 is when receiving the first index signal, image processing module 58 exports the first signal of video signal and dials to external image storage device or image and put device.When image processing module 58 is when receiving the second index signal, image processing module 58 exports the second signal of video signal and dials to external image storage device or image and put device.When image processing module 58 is when receiving the 3rd index signal, image processing module 58 exports the 3rd signal of video signal and dials to external image storage device or image and put device.
Although this document describes all embodiments of the present invention, please note that these embodiments only present in the mode of example, and be not used to limit the present invention.For understanding thoroughly art, can make that various forms and details change is apparent under not departing from spirit of the present invention to embodiment.
For example, first decoder module, second decoder module and the 3rd decoder module can according to the demands of described system, be designed to hd digital signal decoder, high accurate definition analog signal decoder, single-definition analog signal (AnalogStandardDefinition, Analog-SD) decoder, TransportVideoInterface (TVI) decoder or CompositeVideoInterface (CVI) decoder, the present invention is not limited, and wherein preferably combination be, the combination of hd digital signal decoder and the accurate definition analog signal decoder of height or hd digital signal decoder, the combination of high accurate definition analog signal decoder and TVI decoder.
Comprehensive the above, described digitized video Video Recorder and its recording playback image method, after described digitized video Video Recorder receives vision signal, synchronously vision signal is sent to the decoder module of multiple unlike signal form, by the decoder module of unlike signal form to decoding video signal.Decoder module can judge whether to be correctly decoded vision signal voluntarily, and by the index signal produced when being correctly decoded, or when being correctly decoded, just export the signal of video signal of successfully decoded, make described digitized video Video Recorder not need first to carry out could successfully decoding after mistake is attempted.Image receiver module and between the first decoder module and the second decoder module, and first decoder module and the second decoder module with also do not need between image processing module to be connected by switch again, integrated circuit is simplified, and manufacturing cost reduces, and signal is more difficult to be interfered.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the present invention.
Claims (10)
1. a digitized video recording playback image method, is characterized in that, comprises:
One vision signal is decoded as one first signal of video signal with one first form, when this first signal of video signal is correct, produces one first index signal;
This vision signal is decoded as one second signal of video signal with one second form, when this second signal of video signal is correct, produces one second index signal; And
According to this first index signal or this second index signal, optionally export this first signal of video signal or this second signal of video signal.
2. digitized video recording playback image method according to claim 1, is characterized in that, is in the step of this first signal of video signal, comprises in this vision signal of decoding:
This vision signal is decoded as this first signal of video signal; And
Judge that whether this first signal of video signal is correct;
Wherein when this first signal of video signal is correct, produce this first index signal.
3. a digitized video recording playback image method, is characterized in that, comprises:
Decoding a vision signal with one first form, when being correctly decoded this vision signal, producing one first signal of video signal;
Decoding this vision signal with one second form, when being correctly decoded this vision signal, producing one second signal of video signal; And
Export this first signal of video signal or this second signal of video signal of receiving.
4. digitized video recording playback image method according to claim 3, is characterized in that, in decoding in the step of this vision signal with this first form, comprises:
To decode this vision signal with this first form; And
Judge whether this vision signal is correctly decoded;
Wherein when this vision signal is correctly decoded with this first form, produce this first signal of video signal;
Wherein when this vision signal cannot be correctly decoded with this first form, stop decoding this vision signal with this first form.
5. a digitized video Video Recorder, is characterized in that, comprises:
One first decoder module, is decoded as one first signal of video signal with one first form by a vision signal, when this first signal of video signal is correct, produces one first index signal;
One second decoder module, is decoded as one second signal of video signal with one second form by this vision signal, when this second signal of video signal is correct, produces one second index signal; And
One image processing module, in order to receive this first signal of video signal and this second signal of video signal, and according to this first index signal or this second index signal, optionally exports this first signal of video signal or this second signal of video signal.
6. digitized video Video Recorder according to claim 5, it is characterized in that, this first decoder module comprises one first detecting signal unit, whether this first detecting signal unit is correct in order to judge this first signal of video signal, and when this first signal of video signal is correct, produce this first index signal.
7. digitized video Video Recorder according to claim 5, it is characterized in that, this second decoder module comprises a secondary signal detecting unit, whether this secondary signal detecting unit is correct in order to judge this second signal of video signal, and when this second signal of video signal is correct, produce this second index signal.
8. a digitized video Video Recorder, comprises:
One first decoder module, in order to a vision signal of decoding according to one first form, when being correctly decoded this vision signal, produces one first signal of video signal;
One second decoder module, in order to this vision signal of decoding according to one second form, when being correctly decoded this vision signal, produces one second signal of video signal; And
One image processing module, couples this first decoder module and this second decoder module, in order to export this first signal of video signal or this second signal of video signal of receiving.
9. digitized video Video Recorder according to claim 8, it is characterized in that, first decoder module comprises one first detecting signal unit, in order to judge whether this vision signal is correctly decoded, when this vision signal is correctly decoded with this first form, produce this first signal of video signal, when this vision signal cannot be correctly decoded with this first form, this first decoder module stops decoding this vision signal with this first form.
10. digitized video Video Recorder according to claim 8, it is characterized in that, second decoder module comprises a secondary signal detecting unit, in order to judge whether this vision signal is correctly decoded, when this vision signal is correctly decoded with this second form, produce this second signal of video signal, when this vision signal cannot be correctly decoded with this second form, this second decoder module stops decoding this vision signal with this second form.
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| US5195073A (en) * | 1989-12-14 | 1993-03-16 | Matsushita Electric Industrial Co., Ltd. | Apparatus for selectively recording analog and digital data on an optical disc |
| CN1452412A (en) * | 2002-04-16 | 2003-10-29 | 特克特朗尼克公司 | Analog or serial digital video input with automatic video switching |
| US8760583B1 (en) * | 2013-02-26 | 2014-06-24 | Tvlogic Co., Ltd. | Apparatus and method for processing video signal |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5195073A (en) * | 1989-12-14 | 1993-03-16 | Matsushita Electric Industrial Co., Ltd. | Apparatus for selectively recording analog and digital data on an optical disc |
| CN1452412A (en) * | 2002-04-16 | 2003-10-29 | 特克特朗尼克公司 | Analog or serial digital video input with automatic video switching |
| US8760583B1 (en) * | 2013-02-26 | 2014-06-24 | Tvlogic Co., Ltd. | Apparatus and method for processing video signal |
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Application publication date: 20160309 |