CN1893591A - Image grabber employing PIP function by grabbing display current image - Google Patents

Abstract

Image grabber employing PIP function by grabbing current picture display image is disclosed. The invention is characterized in that the image grabber includes a decoding part for decoding digital or analog image signals received from external; a memory part for storing the signals of the decoding part; a display part for displaying the image signals of the decoding part; an image grabbing part for grabbing a plurality of images within a certain interval of the display part. A PIP output part is added to display the image grabbed by the image grabbing part by panorama to a main picture and an auxiliary picture of the display part. Furthermore, a plurality of images are grabbed with a certain interval before and after the specific time point of starting grabbing, and image of actual required time point selected after comparing the plurality of grabbed images is searched. This invention makes a possible of running grabbing function and displaying the picture at the same time, and watching the receiving TV menu, which brings great convenience.

Description

Adopt the sectional drawing device of the PIP function of the current picture show image of intercepting

One, technical field

The present invention relates to a kind of picture capturing apparatus of image apparatus, a kind of capture device that adopts picture-in-picture (PIP) function of the current picture show image of intercepting of more specifically saying so.

Two, background technology

Nearest TV program, especially digital program has mostly data outside image and the acoustic information and program-related information is shown on the Electronic Program Guide (Electronic Program Guide:EPG), informs the function of user's program-related information thus.Along with the introducing of above-mentioned digital program,, TV receives that the more signal demand exploitation of high image quality comprises the receiver of more complicated more diversified function for receiving function.

Simultaneously, the representative example of above-mentioned diversified function has: picture capturing (capture) function that intercepts current picture show image.

Figure 1 shows that the block diagram of the picture capturing apparatus of traditional image apparatus, Fig. 2 is a picture of introducing the picture capturing state of traditional image apparatus.

As shown in the figure, the picture capturing apparatus of traditional image apparatus is made up of following establishment:

To the lsb decoder 11 of decoding from the number or the analog tv signal of outside reception; The program data stream of above-mentioned decoding is converted to the converter section 12 of the form that is fit to demonstration; Store the storage part 13 of the program data stream of above-mentioned converter section 12 conversions; The display part 14 that shows the program data stream of stating converter section 12 conversions; The key entry portion 15 of input image display order; Picture capturing portion 16 according to the current picture show image of key entry portion 15 image display interception of commands.

Provide multiple information by digital program as mentioned above, the user then wishes to retain its information, and this demand impels the user watching program capturing picture simultaneously.

Even digital program also can receive the NTSC signal of the digital TV output of high price or the NTSC signal of set-top box (set-topbox) output and use above-mentioned intercepting function.

Therefore but the capture device of above-mentioned employing conventional art can not in time intercept the image frame of watching, and it is poor that the stipulated time takes place.The image that intercepting lagged behind than the stipulated time promptly occurs, intercepting is less than the problem of required time point image.

And, as shown in Figure 2, can stop picture during operation intercepting function, therefore the problem that can not watch the TV picture that is receiving appears.

Three, summary of the invention

For solving above-mentioned traditional problem point, the purpose of this invention is to provide a plurality of images of intercepting in certain interval, make the image of above-mentioned intercepting be shown to the capture device of key frame and another secondary picture in the panorama mode.

The objective of the invention is to be achieved through the following technical solutions:

A kind of sectional drawing device that adopts the PIP function of the current picture show image of intercepting is characterized in that: it comprises the lsb decoder of decoding to from the number or the analog image signal of outside reception; Store the storage part of the signal of above-mentioned lsb decoder; The signal of video signal of above-mentioned lsb decoder is shown to the display part of picture; In above-mentioned display part picture, in certain interval, intercept the picture capturing portion of a plurality of images.

The present invention also can be provided with and make above-mentioned image in the intercepting of picture capturing portion be shown to the key frame of above-mentioned display part and the PIP efferent of another secondary picture in the panorama mode.

Above-mentioned picture capturing portion is before and after the specified point that begins to intercept serve as certain interval a plurality of images that intercept.

Above-mentioned display part is preferably on the secondary picture when showing the image of above-mentioned picture capturing portion intercepting in the panorama mode, shows the image that is receiving at key frame.

Above-mentioned storage part is preferably stored the signal of above-mentioned lsb decoder in chronological order.

The invention has the beneficial effects as follows:

The present invention can be serve as certain interval a plurality of images of intercepting before and after the specified point that begins to intercept and to show in the panorama mode, and the image of therefrom effectively choosing actual required time point or likeing best time point behind these several capturing pictures that show in the panorama mode is compared in search.

And, on secondary picture, show above-mentioned intercepting image in the panorama mode in, show the image that is receiving at key frame, therefore also can broadcasting pictures operation intercepting function the time, can watch the TV picture that is receiving.

Four, description of drawings

Figure 1 shows that the block diagram of the picture capturing apparatus of traditional image apparatus.

Fig. 2 is a picture of introducing the picture capturing state of traditional image apparatus.

Figure 3 shows that the block diagram of the picture capturing apparatus that adopts PIP function of the present invention.

Fig. 4 is the picture of the picture capturing state of the picture capturing apparatus of introduction employing PIP function of the present invention.

Major part description of symbols in the accompanying drawing

21: lsb decoder 22: format conversion portion

23: storage part 24:PIP efferent

25: display part 26: key entry portion

27: picture capturing portion

Five, embodiment

Below, in conjunction with the accompanying drawings and embodiments, more specifically introduce the sectional drawing device of the employing PIP function of the present invention's proposition.At this, introduce as a reference example of image apparatus of the present invention with common TV.

Figure 3 shows that the block diagram of the picture capturing apparatus that adopts PIP function of the present invention, Fig. 4 is the picture of the picture capturing state of the picture capturing apparatus of introduction employing PIP function of the present invention.

As shown in the figure, the present invention includeslsb decoder 21,format conversion portion 22,storage part 23, PIP efferent 24,display part 25,key entry portion 26 andpicture capturing portion 27.

21 pairs of number or analog tv signals that receive from the outside of lsb decoder are decoded, andformat conversion portion 22 is converted to the form that is fit to demonstration with the program data stream of above-mentioned decoding.

The signal of video signal of above-mentionedlsb decoder 21 decodings ofstorage part 23 storages, storage especially in chronological order.

Display part 25 shows that the signal of video signal of above-mentionedlsb decoder 21 decodings is to picture.

The 26 input image display orders of key entry portion,picture capturing portion 27 is by above-mentioned display part 25 a plurality of images of intercepting in certain interval.At this moment, serve as necessarily to intercept a plurality of images in interval before and after the specified point that above-mentionedpicture capturing portion 27 begins to intercept with the image that is stored in above-mentionedstorage part 23.

PIP efferent 24 makes the image of above-mentionedpicture capturing portion 27 interceptings be shown to the key frame of above-mentioned display part and the PIP efferent of another secondary picture in the panorama mode.

At this moment, above-mentioneddisplay part 25 shows the image that is receiving when showing the image of above-mentioned picture capturing portion intercepting in the panorama mode on secondary picture at key frame.

It is as follows that introduction has the effect of the present invention of as above structure.

At first, television reception TV signal of video signal, then 21 pairs of number or analog tv signals that receive from the outside of lsb decoder are decoded.Afterwards,format conversion portion 22 is converted to the form that is fit to demonstration with the program data stream of above-mentioned decoding.

Simultaneously, the signal of video signal of above-mentionedlsb decoder 21 decodings will be stored to storage part 23.At this moment, above-mentionedstorage part 23 is preferably stored in chronological order according to the input time point of above-mentioned signal of video signal.For example, the image of preferably importing with frame unit or specific time interval storage.

Display part 25 shows that the signal of video signal of above-mentionedlsb decoder 21 decodings is to picture.

Under this state, from the 26 input image display orders of key entry portion, thenpicture capturing portion 27 is by above-mentioned display part 25 a plurality of images of intercepting in certain interval.

At this moment, above-mentionedpicture capturing portion 27 is not only to intercept single image, but serve as necessarily to intercept a plurality of images in interval before and after the specified point that begins to intercept with the image that is stored in above-mentionedstorage part 23.

Afterwards, PIP efferent 24 makes the image of above-mentionedpicture capturing portion 27 interceptings be shown to key frame and another secondary picture of above-mentioneddisplay part 25 in the panorama mode.

At this, PIP (picture in picture) is meant to have the little picture that shows television receiver display frame and another secondary picture simultaneously, and is promptly similar with home computer PC, and is called picture-in-picture (PIP) function.

Have and claim in the TV of above-mentioned functions that background frame is a mother picture, claim that dwindling picture displayed is PIP.Adopt this function can when watching certain program, confirm the content of other channels.

And above-mentioneddisplay part 25 shows the image that is receiving when showing the image of above-mentioned picture capturing portion intercepting in the panorama mode on secondary picture at key frame.Therefore, also can broadcasting pictures in the time of operation intercepting function, therefore can watch the TV picture that is receiving.

And, as shown in Figure 4, the search comparand open several capturing pictures showing in the panorama mode (a, b, c, d) after, therefrom select the image of actual required time point.These pictures preferably are arranged in order storage with frame unit or specific time interval.

Simultaneously, the user can be by external device and the default intercepting pattern environment of environment set menu, above-mentioned environment set menu can designated user be wished the image size that intercepts, and the shared memory size of size, and can set the frame numbers that can intercept (capture) according to transmission environment.And set the method or the transmission method of keeping data,, then also can set the image storage format if support multiple picture format.

For using above-mentioned intercepting pattern, the user needs to finish desired data by the default environment of menu and sets, generates set environment after, no longer change environment set or only during the changing unit time-sharing environment as if the user, then need not change environment, environment default before can always using is used.

The sectional drawing device of above-mentioned employing PIP function of the present invention is applicable to TV, VCR, and display, TV receives personal computer and set-top box (STB), simulated television, digital television and satellite television.And, certain NTSC, PAL, modes such as SECAM are also all applicable.

And, adopt the sectional drawing device of PIP function of the present invention can be located at image apparatus inside such as TV, or also can be located at the outside of TV with external equipment with internally-arranged type.

Content by above explanation, technical scope of the present invention is not limited to the content of putting down in writing among the embodiment, those skilled in the art can carry out various change and modification in the scope that does not depart from the technology of the present invention thought, and this change also will belong to the application range that the present invention puts down in writing.

Claims (5)

1, a kind of sectional drawing device that adopts the PIP function of the current picture show image of intercepting is characterized in that: it comprises the lsb decoder of decoding to from the number or the analog image signal of outside reception; Store the storage part of the signal of above-mentioned lsb decoder; The signal of video signal of above-mentioned lsb decoder is shown to the display part of picture; In above-mentioned display part picture, in certain interval, intercept the picture capturing portion of a plurality of images.

2, employing according to claim 1 intercepts the sectional drawing device of the PIP function of current picture show image, it is characterized in that: it also is provided with and makes above-mentioned key frame and another secondary picture that is shown to above-mentioned display part at the image of picture capturing portion intercepting in the panorama mode.

3, employing according to claim 1 intercepts the sectional drawing device of the PIP function of current picture show image, it is characterized in that: above-mentioned picture capturing portion is before and after the specified point that begins to intercept serve as certain interval a plurality of images that intercept.

4, employing according to claim 1 intercepts the sectional drawing device of the PIP function of current picture show image, it is characterized in that: above-mentioned display part shows the image that is receiving when showing the image of above-mentioned picture capturing portion intercepting in the panorama mode on secondary picture at key frame.

5, employing according to claim 1 intercepts the sectional drawing device of the PIP function of current picture show image, and it is characterized in that: above-mentioned storage part is stored the signal of video signal of lsb decoder in chronological order.

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