CN104639846B - image switching system, image switching device and image switching method - Google Patents
image switching system, image switching device and image switching method Download PDFInfo
- Publication number
- CN104639846B CN104639846B CN201410421840.5A CN201410421840A CN104639846B CN 104639846 B CN104639846 B CN 104639846B CN 201410421840 A CN201410421840 A CN 201410421840A CN 104639846 B CN104639846 B CN 104639846B
- Authority
- CN
- China
- Prior art keywords
- image
- processing
- display device
- module
- scaling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims description 226
- 230000006641 stabilisation Effects 0.000 claims description 15
- 238000011105 stabilization Methods 0.000 claims description 15
- 230000003321 amplification Effects 0.000 claims description 7
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 9
- 230000008859 change Effects 0.000 description 4
- 230000000977 initiatory effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The invention discloses an image switching system. The image switching system comprises at least one display device, a plurality of image sources and a switcher. Each image source provides an image. The switcher is respectively coupled with at least one display device and a plurality of image sources. The switcher comprises a storage module, an image receiving module, a zooming module and an image time sequence control module. The image receiving module receives a first image from a plurality of images. The scaling module performs a first scaling process on the first image to form a first processed image. The image time sequence control module outputs the first processed image to the display device. During the period of switching the first image to the second image, the switcher stores the first processed image output to the display device in the storage module according to the triggering mechanism.
Description
Technical field
The present invention is related with image transmission, is cut especially with regard to a kind of image switching system, image switching device and image
Change method.
Background technology
In traditional image switching system, switch is respectively coupled to multiple audio-visual or image source and at least one display dress
It sets.When switch carries out the switching of multiple audio-visual or image source institute input image, if switch is only that will need enhanced processing
Audio-visual or image source provided be enlarged into the image output with higher resolution with the input image compared with low-res,
Or only it is that will need that the input image with higher resolution that is provided of audio-visual or image source handled is provided and is reduced into have
Compared with the image output of low-res, then when display device shows those image outputs, can show really seamless and without noise
The good display effect of picture output.
However, once switch receives switching signal and so that the source of input image is by needing the audio-visual of enhanced processing
Or image source provided have compared with the first input image (as shown in Figure 1A) of low-res switch to need reduce it is audio-visual
Or the second input image (as shown in Figure 1B) with higher resolution that image source is provided, the process switched in a flash herein
In, the image output shown by display device will appear the noise picture as shown in Fig. 1 C (dirty frame), cause to use
Puzzlement when person watches, it would be highly desirable to overcome.
Invention content
Therefore, a kind of image switching system of present invention proposition, image switching device and image switching method, it is existing to solve
The above problem that technology is suffered from.The present invention is during one first image switches to one second image, according to a trigger mechanism
It image will be stored after output to the first processing of the display device, and export during switching shadow after the first processing of storage
As giving output device.It is aforementioned during the first image switches to the second image, can include widely triggering generate switching image
Switching signal occur time point.In one embodiment, trigger mechanism can be to by first image switch to this
One switching signal of two images；In another embodiment, trigger mechanism can be by receive first image become to receive this
When two images, to judge the second received image as unstable fixing as trigger mechanism.
A specific embodiment according to the present invention is a kind of image switching system.In this embodiment, image switching system
Including an at least display device, multiple image sources and switch.Each image source provides an image.Switch is respectively at least one
Display device and the coupling of multiple image sources.Switch includes memory module, image receiving module, Zoom module and image sequential control
Molding block.Image receiving module receives the first image in multiple images.The first image of Zoom module pair carries out at the first scaling
Reason is to form image after the first processing.Image time-sequence control module is by image output after the first processing to display device.In first
During image switches to the second image, image is deposited after switch will be exported to the first processing of display device according to trigger mechanism
It is stored in memory module.
In one embodiment, trigger mechanism is a switching signal.Image receiving module receives the second shadow according to switching signal
Picture, and the second scaling processing is carried out by the second image of Zoom module pair.When Zoom module does not complete the second scaling processing, image
Image output is to display device after the first processing that time-sequence control module is stored memory module；When Zoom module completes second
Scaling processing and when forming image after second processing, image time-sequence control module is by image output after second processing to showing dress
It sets.
In one embodiment, trigger mechanism is a switching signal.Image receiving module receives the second shadow according to switching signal
Picture, and the second scaling processing is carried out by the second image of Zoom module pair.Image time-sequence control module in a specific time in will deposit
Storage first processing after image output to display device at least once, and in output storage first processing after image at least once
Image output is to display device after the second image is formed by second processing via the second scaling processing afterwards.
In one embodiment, the first scaling processing is the processing of diminution image analytic degree and the second scaling processing is amplification shadow
Processing or processing that the first scaling processing is magnified image resolution and the second scaling processing as resolution are to reduce image
The processing of resolution.
In one embodiment, when magnified image resolution is handled, the first image or the second image are first stored in storage
Module is amplified image analytic degree processing using Zoom module, then will be after treated the first processing at image or second
Image output is to display device after reason.
In one embodiment, when reducing image analytic degree processing, the first image or the second image are first input to scaling
Module carries out reducing image analytic degree processing, then again will image store after image or second processing after treated the first processing
It is exported to display device in memory module, then by memory module.
In one embodiment, trigger mechanism is to become to receive the second image by receiving the first image when image receiving module
When, if image receiving module judges that the second image that it is received is unstable, image time-sequence control module can read memory module institute
It image and is exported to display device after first processing of storage.
In one embodiment, if image receiving module judges its second image stabilization received, extremely by the second image output
Zoom module forms image after second processing to carry out the second scaling processing to the second image.Image time-sequence control module can be read
It takes image after the second processing that memory module stored and exports to display device.
In one embodiment, if image receiving module judges its second image stabilization received, the second image store is in depositing
Module is stored up, Zoom module reads the second image that memory module is stored and carries out the second scaling processing to the second image to be formed
Image after second processing, and by image after image timing control mould output second processing to display device.
In one embodiment, the first scaling processing is the processing of diminution image analytic degree and the second scaling processing is amplification shadow
As the processing of resolution；Or first scaling processing be the processing of magnified image resolution and the second scaling processing be reduce image
The processing of resolution.
In one embodiment, when magnified image resolution is handled, the first image or the second image are first stored in storage
Module is amplified image analytic degree processing using Zoom module, then will be after treated the first processing at image or second
Image output is to display device after reason.
In one embodiment, when reducing image analytic degree processing, the first image or the second image are first input to scaling
Module carries out reducing image analytic degree processing, then again will image store after image or second processing after treated the first processing
It is exported to display device in memory module, then by memory module.
In one embodiment, trigger mechanism is to become to receive the second image by receiving the first image when image receiving module
When, if image receiving module judges that the second image that it is received is unstable, image time-sequence control module reads the by memory module
It image and is exported to display device after one processing.
In one embodiment, if image receiving module judges its second image stabilization received, image receiving module is by the
Two image outputs carry out the second scaling processing to the second image to Zoom module and form image after second processing, memory module
Store image after second processing, image time-sequence control module reads image after second processing and exports to display device.
In one embodiment, if image receiving module judges its second image stabilization received, the second image store is in depositing
Module is stored up, Zoom module reads the second image that memory module is stored and carries out the second scaling processing to the second image to be formed
Image after second processing, and by image after image timing control mould output second processing to display device.
In one embodiment, image is the image shown by display device after the first processing that memory module is stored.
Compared to the prior art, image switching system according to the present invention, image switching device and image switching method are logical
A trigger mechanism (such as judgement of switching signal or unstable picture) is crossed to determine to restore the opportunity of normal table image, and
During normal steady state has not yet been reached in the new image that the audio-visual or image source being switched is provided, the normal steady of restoring is provided
Fixing is shown to display device, until determining that the new image that the audio-visual or image source being switched is provided has reached normally surely
When determining state, then new image is provided to display device to show, therefore image switching system, image switching device and the shadow of the present invention
Noise picture (dirty is shown during capable of effectively avoiding traditional display device from switching in moment as switching method
Frame) the problem of, to realize seamless and cut effect soon without what noise picture exported.
It can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of the drawings
Figure 1A is painted with the first input image compared with low-res.
Figure 1B is painted the second input image with higher resolution.
Fig. 1 C are painted the schematic diagram that noise picture occurs in the image output shown by display device in the prior art.
Fig. 2 is painted the schematic diagram of the image switching system in an embodiment according to the present invention.
Fig. 3 is painted the schematic diagram of the initialization program between audio-visual or image output device and audio-visual or image source.
Fig. 4 is painted the inside structure schematic diagram of the switch in image switching system.
Fig. 5 and Fig. 6, which is painted to be enlarged into the input image compared with low-res by the operation of switch respectively, to be had
The image output of a certain fixed resolution and be reduced into the input image with higher resolution fixed is parsed with a certain
The schematic diagram of the image output of degree.
Fig. 7 be painted according to another embodiment of the present invention in image switching method flow chart.
Fig. 8 A to Fig. 8 C are painted the schematic diagram that image switching method operates in image switching system.
Fig. 9 is painted the flow chart of another embodiment of the image switching method of the present invention.
Figure 10 is painted another embodiment of the switch in the image switching system of the present invention.
【Symbol description】
S10~S30：Process step
2：Image switching system
20：Switch
S1~S4：Audio-visual or image source
D1~D4：Audio-visual or image output device
I0~I3：First interface
I4~I7：Second interface
SW：Switching signal
200：Image receiving module
201：Zoom module
202：Memory module
203：Image time-sequence control module
204：Image handover module
HPD：Hot plug detects
EDID：Extending display identification data
HDCP：High-res content protecting
V1：Input image with resolution 800x600
V2、V4、V2’：Image output with fixed resolution 1280x720
V3：Input image with resolution 1920x1080
NS：Unstable picture
Specific implementation mode
A preferred embodiment according to the present invention is a kind of image switching system.In this embodiment, image switching
System includes switch, multiple audio-visual or image source and at least one audio-visual or image output device.Fig. 2 is please referred to, Fig. 2 is painted
The schematic diagram of image switching system in the present embodiment.
As shown in Fig. 2, image switching system 2 includes that switch 20, audio-visual or image source S1~S4 and audio-visual or image are defeated
Go out device D1~D4.It should be noted that the audio-visual or image source included by image switching system 2 and audio-visual or image output dress
The number set is not limited with four in this.In fact, audio-visual or image source number can be two or more,
Audio-visual or image output device number can be one or more.
In practical application, switch 20 can be a kind of audio-visual switch (audiovisual switch) or a kind of key
Disk, image and mouse switch (KVM switch).In this present embodiment, switch 20 is a kind of audio-visual switching of array
Device, but not limited to this.
As shown in Fig. 2, the first side of switch 20 and the second side are respectively provided with multiple first interface I0~I3 and multiple
Two interface I4~I7.Wherein, those first interfaces I0~I3 is coupling those audio-visual or image source S1~S4；Those second connect
Mouthful I4~I7 is coupling those audio-visual or image output device D1~D4.
It is connect in fact, first interface I0~I3 can be visual graphic array (Video Graphics Array, VGA)
Mouth, digital video interface (Digital Visual Interface, DVI), display port (Display Port) interface or height
The input interfaces such as resolution multimedia interface (High-Definition Multimedia Interface, HDMI), but not with
This is limited.Audio-visual or image source S1~S4 can be that (such as DVD player or blue-ray DVD play for computer or audio and video player
Device), but not limited to this.Second interface I4~I7 can be visual graphic array (VGA) interface, digital video interface (DVI),
The output interfaces such as display port (DisplayPort) interface or high-resolution multimedia interface (HDMI), but not limited to this.Shadow
Sound or image output device D1~D4 can be a variety of different display devices, such as：Liquid crystal display device or plasma-based display dress
It sets, but not limited to this.Those audio-visual or image source S1~S4 can provide the input shadow at least one first resolution
Picture, and those audio-visual or image output device D1~D4 can then support the display of the image output of at least one second resolution.
In this embodiment, the function of switch 20 is to switch to different shadows according to the actual demand of user selection
Sound or image source S1~S4 and the audio-visual or video signal being inputted export defeated to specific one or multiple audio-visual or image
Go out device D1~D4.For example, user can be inputted single audio-visual or image source S1 by the switching of switch 20
Audio-visual or video signal export to single audio-visual or image output device D1 or multiple is audio-visual or image output device D2~
D3 is shown.In addition, user also multiple audio-visual or image source S1~S4 can respectively be inputted by switch 20 it is more
A audio-visual or video signal is exported respectively to different display devices, such as by the first audio-visual or image source S1 under the same time
Audio-visual or video signal export to second is audio-visual or image output device D2, by second audio-visual or image source S2 audio-visual or shadow
As signal export to third is audio-visual or image output device D3, by third is audio-visual or the audio-visual or video signal of image source S3 exports
It is exported to the 4th to the first audio-visual or image output device D1 and by the 4th audio-visual or image source S4 audio-visual or video signal
Audio-visual or image output device D4, but not limited to this, and user can arbitrarily carry out different switching controls according to actual demand.
Fig. 3 is please referred to, Fig. 3 is painted showing for the initialization program between audio-visual or image output device and audio-visual or image source
It is intended to.As shown in figure 3, in an embodiment, when switch is by any of those audio-visual or image output device D1~D4
(by taking first is audio-visual or image output device D1 as an example) switching be connected to any of those audio-visual or image source S1~S4 (with
For first is audio-visual or image source S1) when, if first is audio-visual or image source S1 is HDMI interface, the first audio-visual or image output dress
Initiating communications will be established by setting between D1 and first is audio-visual or image source S1.
In this embodiment, the process of above-mentioned initiating communications includes mutual transmission hot plug detection (Hot-Plug-
Detect, HPD), extending display identification data (Extended display identification data, EDID) and height
The two-way communications such as resolution content protecting (High Definition Content Protection, HDCP) authorization code.Therefore,
During switch 20 carries out image switching, for example, for same the first audio-visual or image output device D1, when
When switch 20 switches to different audio-visual or image source S1~S4, as long as audio-visual or image source changes, it is required for carrying out initial
Change program.In general, the foundation of initiating communications probably needs 3~10 seconds time.Due to what is established in initiating communications
In the process, first is audio-visual or picture can not be transmitted to the first audio-visual or image output device D1 by image source S1, thus causes first
Audio-visual or image output device D1 can not go out the phenomenon that picture in initialization procedure.
In order to avoid the above situation occurs, in an embodiment, image switching system 2 can be by controlling switch 20 to coming
It is zoomed in and out from different audio-visual or image source S1~S4 the input images with different resolutions and exports and parsed with fixed
The image output of degree gives those audio-visual or image output device D1~D4, to avoid audio-visual or image source S1~S4 and audio-visual or shadow
The problem of as needing to reinitialize due to switching between output device D1~D4, therefore can shorten due to audio-visual or image source S1
~S4, which switches over caused audio-visual or image output device D1~D4, can not go out the time of picture.It should be noted that switch 20
Image output used by fix resolution size and can have no certain limitation depending on actual demand.
In the method for the time that above-mentioned shortening is audio-visual or image output device D1~D4 can not go out picture, it is necessary to which solution is
When audio-visual or image source S1~S4 is switched over, how the different resolutions that the audio-visual or image source S1~S4 of difference is provided
Image is efficiently scaled to the image output with fixed resolution to audio-visual or image output device D1~D4.
Fig. 4 is please referred to, Fig. 4 is painted the inside structure schematic diagram of the switch 20 in image switching system 2.In this embodiment
In, switch 20 includes at least image receiving module 200, Zoom module 201, memory module 202, image time-sequence control module
203 and image handover module 204.Wherein, image handover module 204 is coupled to audio-visual or shadow by first interface I0~I3 respectively
Image source S1~S4；Image handover module 204 is coupled to image receiving module 200；Image time-sequence control module 203 connects by second
Mouth I4 is coupled to audio-visual or image output device D1~D4；Image receiving module 200 selectively couples Zoom module 201 and deposits
Store up module 202；Zoom module 201 selectively couples memory module 202 and image time-sequence control module 203；Memory module 202
Selectively couple Zoom module 201 and image time-sequence control module 203.Though it is noted that Fig. 4 only show to each
Two interface I4, but for other second interface I5~I7 such as Fig. 2, equally there is Zoom module 201, memory module 202
And the framework of image time-sequence control module 203, slightly show herein.Also that is, image receiving module 200 has been respectively coupled to four components
Do not correspond to Zoom module 201, memory module 202 and the image time-sequence control module 203 of second interface I4~I7, hereinafter, only with
Zoom module 201, memory module 202 and the image time-sequence control modules 203 of second interface I4 corresponding thereto switches over
Explanation.
In this embodiment, image handover module 204 according to a switching signal SW determining those audio-visual or image sources
Some or multiple audio-visual or image source the input image of S1~S4 can be transmitted to image receiving module 200.Image sequential control
Image output is sent to the output device D4 coupled with second contact surface I4 by molding block 203 to control.
Please referring to that Fig. 5 and Fig. 6, Fig. 5 and Fig. 6 be painted respectively will be with the input compared with low-res by the operation of switch
Image zoom is image output with a certain fixed resolution and the input image with higher resolution is reduced into tool
There is the schematic diagram of the image output of a certain fixed resolution.Assuming that the default fixed resolution of switch 20 in the present embodiment
For 1280x720, the resolution that can be shown for those audio-visual or image output device D1~D4.
As shown in fig. 5, it is assumed that input image of first audio-visual or the provided resolutions of image source S1 for 800x600
V1, since the resolution 800x600 of input image V1 is less than the default fixed resolution 1280x720 of switch 20, representative is cut
Parallel operation 20 can will be first with fixed resolution with the input image V1 amplifications (upscale) compared with low-res 800x600
After the image output V2 of 1280x720, then image output V2 is sent to specific audio-visual or image output device D1.It is above-mentioned to put
The flow of big program is：The input image V1 that resolution is 800x600 is stored in memory module 202 by image receiving module 200
It is interior, it is then resent to Zoom module 201 and is amplified processing, the image output V2 after enhanced processing has 1280x720's
Resolution.Then, the image output V2 with fixed resolution 1280x720 is sent to image timing control by Zoom module 201
Module 203, then exported the image output V2 with fixed resolution 1280x720 to audio-visual by image time-sequence control module 203
Or image output device D1 is played out.
As shown in Figure 6, it is assumed that the input image that first is audio-visual or the provided resolutions of image source S1 are 1920x1080
V3 is represented since the resolution 1920x1080 of input image V3 is more than the default fixed resolution 1280x720 of switch 20
It is with fixed solution that input image V3 with higher resolution 1920x1080 first can be reduced (downscale) by switch 20
After the image output V4 of analysis degree 1280x720, then image output V4 is sent to specific audio-visual or image output device D1.On
State reduce program flow be：The input image V3 that resolution is 1920x1080 is sent to scaling mould by image receiving module 200
Block 201 reduce processing as the image output V4 with fixed resolution 1280x720, is then stored in storage mould again
In block 202.And then the image output V4 with fixed resolution 1280x720 is exported by image time-sequence control module 203
It is played out to audio-visual or image output device D1.
In zooming in or out in processing routine for above-mentioned Fig. 5 and Fig. 6, since what memory module 202 was stored has
The input image V1 of 800x600 resolutions and image output V4 with 1280x720 resolutions is resolution and data volume phase
To smaller image, therefore the memory space of memory module 202 can be saved.For example, the enhanced processing journey depicted in Fig. 5
In sequence, there is the input image V1 compared with low-res 800x600 to be first stored in memory module 202, be then amplified place again
Reason；Conversely, in diminution processing routine depicted in Fig. 6, the input image V3 with higher resolution 1920x1080 is first passed through
Zoom module 201 carry out reduce be processed into the image output V4 with 1280x720 resolutions after, then will have compared with low-res
The image output V4 of 1280x720 is stored in memory module 202, therefore the data stored in the image output V4 that can ensure that are equal
It is resolution and the image of data volume minimum.
In this embodiment, the Zoom module 201 that switch 20 is amplified and reduces needed for processing only needs one, can
Change the direction for receiving data according to the demand for zooming in or out processing, therefore is not required to that other Zoom modules are additionally arranged, with
Installation space and the quantity of Zoom module and memory module are saved, and then reduces cost.For example, in the journey of enhanced processing
In sequence, as shown in Figures 4 and 5, the path of video signal transmission is：Image receiving module 200=>Memory module 202=>Scaling
Module 201=>Image time-sequence control module 203, the video signal to be amplified are first stored in memory module 202, then again by
Zoom module 201 is amplified processing；In the program for reducing processing, as shown in Fig. 4 and Fig. 6, the path of video signal transmission
It is：Image receiving module 200=>Zoom module 201=>Memory module 202=>Image time-sequence control module 203, to be reduced
After video signal is first reduced by Zoom module 201, then the video signal after diminution is stored in memory module 202.Therefore, though
Right switch 20 only includes single a Zoom module 201, but can carry out zooming in or out processing to image by switching mode.
Next, why the display device inquired into traditional image switching system will appear miscellaneous as shown in Fig. 1 C
Interrogate picture (dirty frame).Fig. 4 to fig. 6 is please referred to, to illustrate the reason of above-mentioned noise picture occur.It should be noted that
Although audio-visual or image output device D1 in the present embodiment with the resolution of 1280x720 show image, do not represent it is audio-visual or
Image output device the D1 only display capabilities with the resolution, user can still be adjusted to required parsing according to actual demand
Degree.
Assuming that being by first is audio-visual or image source S1 provides the input with the first resolution 800x600 that need to amplify originally
Image V1 is played out to output after the processing of switch 20 to audio-visual or image output device D1, when user by first it is audio-visual or
When image source S1 switches to that second is audio-visual or image source S2, second it is audio-visual or image source S2 is provided need to reduce have the
The input image V3 of two resolutions, 1920 x1080, herein one switching moment, since previous time point is to belong to image zoom
Processing routine, therefore the image stored in memory module 202 is that first is audio-visual or image source S1 is directly provided with first
The input image V1 of resolution 800x600；And first time point after handover, since Zoom module 201 receives video signal
Source can switch to image receiving module 200 from memory module 202 diminution processing is carried out with profit, and at the same time between, when image
The source that sequence control module 203 obtains video signal can be also switched to from Zoom module 201 from memory module 202, with from depositing
Storage module 202 obtains video signal to be output to audio-visual or image output device D1, the image stored by memory module 202
It is the input image V1 with the first resolution 800x600 that first is audio-visual or image source S1 is directly provided, therefore, when image
Sequence control module 203 is the input image V1 with the first resolution 800x600 rather than has acquired by the memory module 202
There is the image output V4 of fixed resolution 1280x720, thus image time-sequence control module 203 is caused to be sent to audio-visual or image
The image output of output device D1 does not have the image output V4 of fixed resolution 1280x720 instead of, has compared with low-res
The input image V1 of 800x600 causes audio-visual or image output device D1 to be played according to preset fixed resolution 1280x720
When, display picture will appear the noise picture as shown in Fig. 1 C.
To solve the above-mentioned problems, the present invention further provides a kind of image switching methods.As shown in fig. 7, in step S10
In, this method chooses first image with the first resolution (being 800x600 in this example).In fact, the first image is optional
From the with HDMI interface first audio-visual or image source S1, but not limited to this.
Then, in step S12, the first image of this method pair carries out the first scaling processing to form shadow after the first processing
Picture, and by image output after the first processing to the first audio-visual or image output device D1.In fact, the first scaling processing can be
The first image zoom with the first resolution 800x600 to preset fixed resolution (is 1280x720 in this example, is
The first audio-visual or supported resolutions of image output device D1).As shown in figure 5, from first audio-visual or image source S1
One image is after enhanced processing is the first processing with resolution 1280x720 after image, by the first audio-visual or image output
Device D1 is played.
Then, in step S14 and step S16, this method receives a switching signal, is touched using the switching signal as one
Hair mechanism, that is, it is audio-visual or image source S1 switches to the second shadow according to image after the first processing of switching signal storage and by first
Sound or image source S2.That is, be input to switch image can from first is audio-visual originally or image source S1 provided it is defeated
Enter image V1 and becomes the input image V3 that second is audio-visual or image source S2 is provided.In fact, switching signal can be by wireless
Or wired transmission or user directly press switch and correspond to produced by specific audio-visual or image source button so that switching
Device is audio-visual or image source S1 switches to the second audio-visual or image source S2 by original first.In this example, the second audio-visual or image
The input image V3 that source S2 is provided has the second resolution 1920x1080.
Next, the implementation procedure of step S16 is described in detail.It please refers to shown in Fig. 8 A, in step s 16, works as switch
20 receive when switching audio-visual or image source switching signal, and switch 20 can first will be just sent to by Zoom module 201 at present
The image output V2 of image time-sequence control module 203, which is synchronized, to be stored in memory module 202.When switch 20 completes audio-visual or shadow
After the switching of image source, the image source that image receiving module 200 is received can be from the first audio-visual or shadow depicted in script Fig. 8 A
Image source S1 becomes the second audio-visual or image source S2 depicted in Fig. 8 B.
Return Fig. 7, in step S18, this method to come from second audio-visual or image source S2 the second image V3 into
The second scaling processing of row, to generate image after the second processing with fixed resolution.As shown in Figure 8 B, due to input image V3
Resolution 1920x1080 be more than the preset fixed resolution 1280x720 of switch 20, therefore in the input of Zoom module 201
End, which can be switched to, to be coupled with image receiving module 200 and receives input image V3, and input image V3 is dwindled into solid
Determine the image output V4 of resolution 1280x720.
As shown in fig. 7, in the process for reducing processing, this method can carry out step S20~S24.In step S20,
Switch can continue judge that input image V3 dwindles into the action of image output V4 and whether completes.It is also contracting if it is not, representing image
Not yet completed in small, then this method carry out step S24, by the image output V2 that step S16 is stored export to first it is audio-visual or
Image output device D1, for the first audio-visual or image output device D1 broadcasting image outputs V2；It has been reduced if so, representing image
It completes, then this method carries out step S22, and the image output V4 for having reduced completion is exported to the first audio-visual or image output device
D1, for the first audio-visual or image output device D1 broadcasting image outputs V4.Due to not yet that image V3 scaling processings is complete
Cheng Qian is first exported with the image V2 originally to prestore and is given output device D1, thereby, this method can effectively overcome in the prior art when
The problem of display device can play out noise picture when the action that input image V3 dwindles into image output V4 is not yet completed.
Next, above-mentioned steps S20~S24 will be described in detail with Fig. 8 B and Fig. 8 C.As shown in Figure 8 B, shadow will inputted
Before dwindling into the image output V4 with fixed resolution as V3, the institute out of memory module 202 of image time-sequence control module 203
The image information of acquirement is all to store to meet the image output of first audio-visual or image output device D1 resolution in Fig. 8 A
V2 ', and output this to display device D1.Until as shown in Figure 8 C, Zoom module 201 is by the second audio-visual or image source S2 institutes
There is provided the input image V3 with the second resolution 1920x1080 dwindle into can first is audio-visual or image output device D1 on it is complete
After the image output V4 of whole broadcasting, image time-sequence control module 203 can just be obtained corresponding to the first audio-visual or image output device
The image output V4 of the resolution 1280x720 of D1.Pass through image processing mode shown in Fig. 8 A to Fig. 8 C, you can effectively solve
The problem of display device shows noise picture caused by switching in the prior art audio-visual or image source.
Fig. 9 is please referred to, Fig. 9 is painted the flow chart of another embodiment of the image switching method of the present invention.As shown in figure 9,
Substantially, step S10~S18 in this embodiment is similar to the flow chart of Fig. 7, the two the difference is that：This embodiment is
Image at least exports once to display device after fixed the first processing by after storage, later again by the second image via the second contracting
It puts processing and is formed by after second processing image output to display device.Such as：In step S26, coordinate shown in Fig. 8 B, image
Time-sequence control module 203 can first read the image output V2 ' that is stored of memory module 202 and be sent to that first is audio-visual or image is defeated
Go out device D1.Then, Fig. 9 is returned, in step S28, switch can judge that the output storage of image time-sequence control module 203 is defeated
Go out whether image V2 ' has reached a specific output number to first audio-visual or image output device D1 number.If it is not, representing also
Specific output number is not reached, this method can repeat step S26 until reaching specific output number.If so, representing
Have reached specific output number, it is however generally that, after exporting specific times, the journey of the second scaling processing is also completed in the second image
Sequence and form image after second processing.At this point, in step S30, as shown in Fig. 8 C figures, image time-sequence control module 203 can be by
Memory module 202 reads image output V4 and simultaneously outputs this to the first audio-visual or image output device D1, for first it is audio-visual or
Image output device D1 is played.
It should be noted that although in preceding description, as shown in Fig. 7 or Fig. 9, switching when image processing flow with from
The image source of enhanced processing is needed to switch to the image source that need to reduce processing.But in not being limited with this situation in practical application.Also
That is, when switch switches over different images source, switch 20 all can be when time point before switching leading prestored presentation
The image output that sequence control module 203 is exported, and it is latter until new image can normally be broadcast in the completion switching of switch 20
Before putting, switch 20 all first exports the image output to prestore to display device.Until new image processing is completed, switching
Device 20 is again by new image output to display device.Thereby, it so can avoid completing to switch in switch in the prior art latter
During until new image can be by normal play, display device show noise image the problem of.It is so-called normally to broadcast
Put, in one embodiment, the image needs newly to switch zoom in and out processing, therefore before scaling processing completion, all elder generation with
Pre-stored image exports, and after the completion of scaling processing, then exports the new image after scaling processing.
For example, in one embodiment, the first scaling processing in Fig. 7 can be the processing of diminution image analytic degree, and the
Two scaling processings can be the processing of magnified image resolution.In this embodiment, according to Fig. 4 and scaling processing shown in fig. 5
Process it can be seen that, when the first scaling processing be reduce image analytic degree when, Zoom module 201 can directly receive come self imaging receive
The input image of module 200, and be stored in memory module 202 after being reduced, then, image time-sequence control module 203 is again
Input image after diminution that memory module 202 is stored is exported to display device D1.At this point, when switch 20 receives switching
Signal SW and when switching to the image source for needing enhanced processing, carries out though Zoom module 201 can read image out of memory module 202
Enhanced processing is exported again to image time-sequence control module 203 to export to display device D1, but enhanced processing program still needs to one section
Time carries out, and therefore, this method utilizes the step S16 of Fig. 7, originally directly from memory module 202 when will receive switching signal
It exports to the diminution image output of image time-sequence control module 203 and prestores, then carry out the second scaling in Zoom module 201
During handling (magnified image processing), image time-sequence control module 203 first exports the diminution image output of storage to display
Device D1 occurs to avoid display device D1 during Zoom module 201 carries out the second scaling processing (magnified image processing)
The problem of showing noise picture.
Then, Figure 10 is please referred to, Figure 10 is painted another embodiment of the switch in the image switching system of the present invention.It removes
It is aforementioned to be restored outside the mode of processing according to switching signal to determine whether carrying out image, it can also pass through image receiving module 200
Whether stable image is received, to determine whether the action restored.It is cut since image receiving module 200 is used for receiving image
The input image that mold changing block 204 is sent, therefore, when image handover module 204 receives switching signal SW, such as from
When audio-visual or image source S1 switches to audio-visual or image source S2, the input image that image receiving module 200 is received has shakiness
Determine picture NS.Therefore, in the present embodiment, whether image receiving module 200 can be by judging its received input image
With unstable picture NS, come as whether existing image output being restored to trigger mechanism in memory module 202.
For example, when image handover module 204 receives switching signal SW not yet, image receiving module 200 is all
The stabilization input image exported from audio-visual or image source S1 is received, when image handover module 204 receives switching signal SW
And when audio-visual or image source S1 is switched to audio-visual or image source S2, as long as image receiving module 200 is not yet received from audio-visual
Or before the stabilization input image of image source S2, image receiving module 200 will judge that the input image received by it has
There is unstable picture NS (such as because resolution changes or caused by the change of synchronizing signal, but not limited to this), at this point, shadow
As receiving module 200 can send out a restoring signal to image time-sequence control module 203.Image time-sequence control module 203 i.e. can root
Image output stable at present is restored into memory module 202 according to signal is restored.In addition, the meeting of image time-sequence control module 203 exists
Not yet completely memory module is completely written in the stable image exported from audio-visual or image source S2 by image receiving module 200
Before 202, constantly reads after existing the first processing restored in memory module 202 image and export to display device, with
Avoid the problem that noise picture exports.
When the judgement of image receiving module 200 has been received from audio-visual or image source S2 stabilization input image, then may be used
Successfully input image is written to memory module 202.It is completely written extremely when memory module 202 is determined with new input image
When memory module 202, memory module 202 is notified that image time-sequence control module 203 captures new input image and exports to aobvious
Showing device D1.It should be noted that next might have following two kinds of situations：
The case where the first is reduces image processing.Come at this point, 201 self imaging receiving module 200 of Zoom module receives
It is to store to memory module after image after second processing to reduce processing from audio-visual or image source S2 stabilization input image and carrying out
202.When storing successfully, memory module 202 is notified that image time-sequence control module 203 to read the second processing newly stored
It image and directly exports afterwards, to complete seamless and image source changeover program without noise.
Second is the case where magnified image is handled.In the case, memory module 202 is received from audio-visual or image
The stabilization input image of source S2, when storing successfully, memory module 202 is notified that image time-sequence control module 203 to read
The input image that newly stores simultaneously directly exports.Due to for enhanced processing, image time-sequence control module 203 can pass through scaling
Module 201 read memory module 202 in store new input image, and via Zoom module 201 amplify after, by image sequential
Control module 203 is exported to display device D1, to complete seamless and image source changeover program without noise.
Compared to the prior art, image switching system according to the present invention, image switching device and image switching method are logical
A trigger mechanism (such as the judgement of switching signal or judgement of unstable picture) is crossed to determine to restore the opportunity of normal table image,
And during normal steady state has not yet been reached in the new image that the audio-visual or image source being switched is provided, provide restoring
Normal table image is shown to display device, until determining that the new image that the audio-visual or image source being switched is provided has reached
When normal steady state, then new image is provided to display device to show, therefore the image switching system of the present invention, image switching dress
It sets and image switching method can effectively avoid traditional display device from showing asking for noise picture during moment switching
Topic, to realize seamless and cut effect soon without what noise picture exported.
Pass through the above detailed description of preferred embodiments, it would be desirable to the feature and spirit of the present invention are more clearly described, and
Not scope of the invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, the purpose is to wish
Various changes can be covered and have being arranged in the scope of the claim to be applied of the invention of equality.
Claims (27)
1. a kind of image switching method, includes the following steps：
Receive one first image；
To first image carry out one first scaling processing with formed one first processing after image, and by this first processing after image
It exports to a display device；And
During first image switches to one second image, which is received according to a trigger mechanism, and will output
Image is stored after to the first processing of the display device, wherein after first processing stored image be will receive this
Before two image outputs to the display device, the image shown by the display device.
2. image switching method as described in claim 1, which is characterized in that the trigger mechanism is to cut first image
A switching signal of second image is shifted to, which further includes the following steps：
Second image is received according to the switching signal；And
One second scaling processing is carried out to second image；
Wherein, when second image is when carrying out second scaling processing, extremely by image output after first processing stored
The display device；When the second image image after second scaling processing forms a second processing, after the second processing
Image output is to the display device.
3. image switching method as described in claim 1, which is characterized in that the trigger mechanism is to cut first image
A switching signal of second image is shifted to, which further includes the following steps：
Second image is received according to the switching signal；
Image is at least once to the display device after exporting first processing of storage；
One second scaling processing is carried out to form image after a second processing to second image；And
In output storage this first processing after image at least once after, by image output after the second processing give the display fill
It sets.
4. image switching method as claimed in claim 2 or claim 3, which is characterized in that first scaling processing is a diminution image
The processing of resolution and the processing that second scaling processing is a magnified image resolution；Or first scaling processing is put for one
The processing of big image analytic degree and the processing that second scaling processing is a diminution image analytic degree.
5. image switching method as claimed in claim 4, which is characterized in that when magnified image resolution is handled, this first
Or second image be first stored in a memory module, then using a Zoom module carry out the magnified image resolution processing,
Again will after the processing of treated the first or second image output to the display device.
6. image switching method as claimed in claim 4, which is characterized in that when reducing image analytic degree processing, this first
Or second image be first input to a Zoom module carry out the diminution image analytic degree processing, then again will treated first or
Image store is exported in a memory module, then by the memory module to the display device after second processing.
7. image switching method as described in claim 1, which is characterized in that the trigger mechanism is to be become by receiving first image
When at receiving second image, the second received image is judged as unstable fixing, which has further included down
Row step：
When judging that second image received is unstable, image is to the display device after exporting first processing stored.
8. image switching method as claimed in claim 7, has further included the following steps：
When second image stabilization of reception, one second scaling processing is carried out to second image, to form a second processing
Image afterwards；
Store image after the second processing；And
Image is to the display device after exporting the second processing of storage.
9. image switching method as claimed in claim 7, which is characterized in that it has further included the following steps：
When second image stabilization of reception, second image is stored；And
It reads the second image of storage and one second scaling processing is carried out to form image after a second processing to second image
It exports and gives the display device.
10. a kind of image switching device, including：
One memory module；
One image receiving module, to receive one first image in multiple images；
One Zoom module carries out one first scaling processing to form image after one first processing to first image；And
One image time-sequence control module, to by image output after first processing to a display device；
Wherein, during first image switches to one second image, which receives according to a trigger mechanism should
Second image, and by image store after the first processing of output to the display device in the memory module, wherein what is stored should
Image is the image shown by the display device before second image output to the display device that will be received after first processing.
11. image switching device as claimed in claim 10, which is characterized in that the trigger mechanism is to by first image
A switching signal of second image is switched to, which receives second image, the contracting according to the switching signal
Amplification module carries out one second scaling processing to second image, should when the Zoom module not yet completes second scaling processing
Image output is to the display device after first processing that image time-sequence control module is stored the memory module；When the scaling
When module completes second scaling processing and forms image after a second processing, the image time-sequence control module is by the second processing
Image output is to the display device afterwards.
12. image switching device as claimed in claim 10, which is characterized in that the trigger mechanism is to by first image
A switching signal of second image is switched to, which receives second image, the contracting according to the switching signal
Amplification module carries out one second scaling processing to second image, the image time-sequence control module export at least once storage this
One processing after image give the display device, and in output storage this first processing after image at least once afterwards by second image
Image output is to the display device after being formed by a second processing via second scaling processing.
13. the image switching device as described in claim 11 or 12, which is characterized in that first scaling processing is a diminution shadow
Processing and second scaling processing as resolution are the processing of a magnified image resolution；Or first scaling processing is one
The processing of magnified image resolution and the processing that second scaling processing is a diminution image analytic degree.
14. image switching device as claimed in claim 13, which is characterized in that when magnified image resolution is handled, this
One or second image be first stored in the memory module, then carried out at the magnified image resolution using the Zoom module
Reason, then will after the processing of treated the first or second image output to the display device.
15. image switching device as claimed in claim 13, which is characterized in that when reducing image analytic degree processing, this
One or second image be first input to the Zoom module and carry out diminution image analytic degree processing, then again will treated first
Or image store is exported in the memory module, then by the memory module to the display device after second processing.
16. image switching device as claimed in claim 10, which is characterized in that the trigger mechanism is to judge that the image receives mould
When block becomes to receive second image by receiving first image, the second image received is unstable fixing, and in judgement
When second image received is unstable, image time-sequence control module is read shadow after the first stored processing by the memory module
Picture is simultaneously exported to the display device.
17. image switching device as claimed in claim 16, which is characterized in that the image receiving module judge to receive this
When two image stabilizations, by second image output to the Zoom module with the shape to second image, one second scaling processing of progress
At image after a second processing, which stores image after the second processing, which reads out this
After second processing image and export give the display device.
18. image switching device as claimed in claim 16, which is characterized in that the image receiving module judge to receive this
When two image stabilizations, store second image in the memory module, the Zoom module read the second image of storage and to this
Two images carry out one second scaling processing and are exported to the image timing control mould to form image after a second processing to give the display
Device.
19. a kind of image switching system, including：
An at least display device；
Multiple image sources, each image source is providing an image；
One switch, couples with an at least display device and multiple image source respectively, which includes：
One memory module；
One image receiving module, to receive one first image in multiple images；
One Zoom module carries out one first scaling processing to form image after one first processing to first image；And
One image time-sequence control module, to by image output after first processing to a display device；
Wherein, during first image switches to one second image, which receives second shadow according to a trigger mechanism
Picture, and will output to the display device this first processing after image store in the memory module, wherein store this first
Image is the image shown by the display device before second image output to the display device that will be received after processing.
20. image switching system as claimed in claim 19, which is characterized in that the trigger mechanism is to by first image
A switching signal of second image is switched to, which receives second image, the contracting according to the switching signal
Amplification module carries out one second scaling processing, when the Zoom module does not complete second scaling processing, the shadow to second image
Image output is to the display device after first processing for being stored the memory module as time-sequence control module；When the scaling mould
When block completes second scaling processing and forms image after a second processing, which will be after the second processing
Image output is to the display device.
21. image switching system as claimed in claim 19, which is characterized in that the trigger mechanism is to by first image
A switching signal of second image is switched to, which receives second image, the contracting according to the switching signal
Amplification module to second image carry out one second scaling processing, the image time-sequence control module in a specific time by storage
Image output gives the display device at least once after first processing, and the image at least one after first processing of output storage
Image output is to the display device after second image is formed by a second processing via second scaling processing after secondary.
22. the image switching system as described in claim 20 or 21, which is characterized in that first scaling processing is a diminution shadow
Processing and second scaling processing as resolution are the processing of a magnified image resolution；Or first scaling processing is one
The processing of magnified image resolution and the processing that second scaling processing is a diminution image analytic degree.
23. image switching system as claimed in claim 22, which is characterized in that when magnified image resolution is handled, this
One or second image be first stored in the memory module, then carried out at the magnified image resolution using the Zoom module
Reason, then will after the processing of treated the first or second image output to the display device.
24. image switching system as claimed in claim 22, which is characterized in that when reducing image analytic degree processing, this
One or second image be first input to the Zoom module and carry out diminution image analytic degree processing, then again will treated first
Or image store is exported in the memory module, then by the memory module to the display device after second processing.
25. image switching system as claimed in claim 19, which is characterized in that the trigger mechanism is to judge that the image receives mould
When block becomes to receive second image by receiving first image, the second image received is unstable fixing, and in judgement
When second image received is unstable, image time-sequence control module is read shadow after the first stored processing by the memory module
Picture is simultaneously exported to the display device.
26. image switching system as claimed in claim 25, which is characterized in that the image receiving module judge to receive this
When two image stabilizations, by second image output to the Zoom module with the shape to second image, one second scaling processing of progress
At image after a second processing, which stores image after the second processing, which reads out this
After second processing image and export give the display device.
27. image switching system as claimed in claim 25, which is characterized in that the image receiving module judge to receive this
When two image stabilizations, store second image in the memory module, the Zoom module read the second image of storage and to this
Two images carry out one second scaling processing and are exported to the image timing control mould to form image after a second processing to give the display
Device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361903388P | 2013-11-12 | 2013-11-12 | |
| US61/903,388 | 2013-11-12 | ||
| TW102149089 | 2013-12-30 | ||
| TW102149089A TWI527022B (en) | 2013-11-12 | 2013-12-30 | Image switching system, image switching apparatus, and image switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104639846A CN104639846A (en) | 2015-05-20 |
| CN104639846B true CN104639846B (en) | 2018-07-13 |
Family
ID=53218106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410421840.5A Active CN104639846B (en) | 2013-11-12 | 2014-08-25 | image switching system, image switching device and image switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104639846B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107786823A (en) * | 2016-08-25 | 2018-03-09 | 晨星半导体股份有限公司 | Applied to the circuit of TV and the image display method of correlation |
| TWM534482U (en) * | 2016-09-06 | 2016-12-21 | Aten Int Co Ltd | Media switch device, media switch system and media switch method |
| CN107135332B (en) * | 2017-05-10 | 2020-10-20 | 微鲸科技有限公司 | Display shielding method and device, display equipment and readable storage medium |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3601439B2 (en) * | 2000-10-31 | 2004-12-15 | セイコーエプソン株式会社 | Image display device |
| JP3814514B2 (en) * | 2001-10-23 | 2006-08-30 | キヤノン株式会社 | Image display apparatus, image processing method, and program |
| CN101232605A (en) * | 2007-01-24 | 2008-07-30 | 旺玖科技股份有限公司 | Image obtaining unit |
| CN100525418C (en) * | 2007-03-12 | 2009-08-05 | 圆刚科技股份有限公司 | Video processing and output device with the multiple display function |
| CN102244722B (en) * | 2010-05-10 | 2013-09-04 | 曜鹏科技股份有限公司 | Image capture module and image capture method capable of avoiding shutter delay |
| CN103024257A (en) * | 2011-09-28 | 2013-04-03 | 华晶科技股份有限公司 | Image capturing device capable of automatically switching clock rate of memory and control method of image capturing device |
| KR101899851B1 (en) * | 2012-05-03 | 2018-09-18 | 삼성전자 주식회사 | Apparatus and mehod for processing a image in camera device |
-
2014
- 2014-08-25 CN CN201410421840.5A patent/CN104639846B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104639846A (en) | 2015-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7724271B2 (en) | Apparatus and method of transforming multidimensional video format | |
| US8026919B2 (en) | Display controller, graphics processor, rendering processing apparatus, and rendering control method | |
| JP5144802B1 (en) | Display device | |
| KR101796603B1 (en) | Mechanism for memory reduction in picture-in-picture video generation | |
| JP3268779B2 (en) | Variable pixel depth and format for video windows | |
| US8401339B1 (en) | Apparatus for partitioning and processing a digital image using two or more defined regions | |
| US9832421B2 (en) | Apparatus and method for converting a frame rate | |
| US9521352B2 (en) | Television set capable of identifying a plurality of peripherals and allowing to select and display the contents of one of the same | |
| TWI518673B (en) | Video switch and switching method thereof | |
| CN104639846B (en) | image switching system, image switching device and image switching method | |
| JP2006330704A (en) | Video scaler having minimum size output memory and method for selecting output memory size | |
| CN100364323C (en) | Method for displaying high resolution JPEG picture using embedded Linux system TV set | |
| US11722635B2 (en) | Processing device, electronic device, and method of outputting video | |
| TWI527022B (en) | Image switching system, image switching apparatus, and image switching method | |
| US8531350B2 (en) | Display control apparatus, and setting method and program for display control apparatus | |
| JP2008015565A (en) | Circuit, system and method for processing image | |
| CN100440951C (en) | PIP processing device and its processing method | |
| US7801212B2 (en) | Video playing device and control method for setting playing environment thereof | |
| TW202412519A (en) | Video switching method and video processing system | |
| CN117749961A (en) | Video switching method and video processing system | |
| JP2010220260A (en) | Use situation monitoring apparatus, method of monitoring external connection device, and television receiver | |
| KR20080037921A (en) | Digital contents receiving device and method for changing input source thereof | |
| JP2007295102A (en) | Image processing apparatus and method | |
| JPH04316093A (en) | Image reproduction device and its signal processing circuit | |
| JP2001195032A (en) | Picture display processing method and picture display processor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |