CN1194537A - Television receiver for multiple image display - Google Patents
Television receiver for multiple image display Download PDFInfo
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- CN1194537A CN1194537A CN98105204A CN98105204A CN1194537A CN 1194537 A CN1194537 A CN 1194537A CN 98105204 A CN98105204 A CN 98105204A CN 98105204 A CN98105204 A CN 98105204A CN 1194537 A CN1194537 A CN 1194537A
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Abstract
To increase effective video signal quantity that is accumulated in a field memory by optionally setting or selecting the write and read positions of an accumulating means and selecting whether a video signal to be stored in the accumulating means should be written in a frame unit or a one-side field unit.
Description
The present invention relates to a kind of display controller of the sub-picture in television receiver with the many image display functions that on a screen, show many images simultaneously.
The common control method that is used for the field memory that the sub-picture of the television receiver that many images show shows is to write in the field memories to want the sub-picture signal, call over the picture signal that has write and communicate the signals to the imaging signal processing circuit of back level according to what write then, just as announcement during for example Japanese No.7-59059 patent is announced.In the field memories, write the picture signal that each frame (that is, be made up of an odd field and even field a pair of) is located, and as Fig. 2 (a) shown in, the position that position that the odd field picture signal is write and even field picture signal write separates.Field (odd field or an even field) in having only a pair of field is when being shown, shown in Fig. 2 (a), picture signal (A, A ' in a pair of field, B, B ', C, C ', D and D ' (A, B, C and D: the signal of odd field or even field, and A ', B ', C ' and D ': the signal of even field or odd field)) be written in the memory at each frame place, and have only the signal A of a field of write field memory, B, C and D or A ', B ', C ' and D ' are read out in order, and the image of this field is shown in order.
Therefore, controller in the field storage that the sub-picture that is used for many images television receiver shows, even when only using a field and only utilize half capacity of the described memory that is used to come display image, picture signal also is written into each frame place (odd and even number field) of field memory.
Therefore there is a problem, promptly, even write in the memory with as much as possible when the picture signal that requires each timesharing, have only one picture signal can not be written into the whole zone of field memory, as by will be with in the picture signal write field memory of fixed intervals timesharing and read with the picture signal in the fixing interval write field memory and show the gating image.
Also there is another problem in the prior art, promptly owing to the picture signal that is written in the field memory is read in a unit of having been write, even so be used for selecting and the tuner that receives picture signal when being written into same field memory the picture signal that can not side by side read a plurality of programs by one when a plurality of programs.
Owing to the picture signal in the write field memory is to read according to the order that writes, the picture signal in the write field memory can not be in time according to calling over of turning around.
The present invention relates to a kind of television receiver, this receiver comprises: the receiving system that is used to select and receive the sub-picture signal; Be used to compress the Signal Compression device of sub-picture signal; Be used to store compressed picture signal, specify the storage device of writing position and read-out position from data compression device output; Be used to specify the into control device of the read-out position of the picture signal of having compressed of from storage device, reading; And be used for synthesizer that the picture signal of having compressed of reading from storage device and main image signal are synthesized.
The television receiver that is used for many images demonstrations according to first invention comprises: be used at random reaching the writing position of the storage device that is provided with or selects to be used to store the sub-picture signal independently and the device of read-out position; And be used for selecting to write picture signal and it is stored in the device of storage device at each frame place or at each place of a pair of.
Owing to can write a sub-picture signal in field memory at each frame or each a pair of selection, picture signal can be written into (when only showing a field) the whole zone of field memory in each of each frame (when on the screen during display frame image) and a pair of.
According to second invention, the television receiver that is used for many images demonstrations comprises: the receiving system that is used to select and receive the sub-picture signal; Be used to compress the Signal Compression device of sub-picture signal; Be used to store compressed signal, specify the storage device of writing position and read-out position from storage device output; Be used to specify the into control device of the writing position of compressing image signal write storage device; Be used to specify the read-out control device of the read-out position of the compressed picture signal of reading from storage device; And be used for synthesizer that the compressed picture signal of reading from storage device and main image signal are synthesized.
But because the writing position and the reading location of picture signal on the prescribed storage means, picture signal can be written into (when only showing a field) the whole zone of field memory at each frame (when on the screen during display frame image) and each of a pair of.
According to the 3rd invention, the sub-picture signal of a plurality of programs is selected and received in order to the television receiver that is used for many images demonstrations, direction compressed signal along vertical or level, with described signal storage adjoining position in storage device, be the read-out position of a plurality of program prescribed storage means, and read multilevel image signal simultaneously and show by gating simultaneously or mobile image shows as sub-picture and is written into a plurality of programs in the field memory.
According to the 4th invention, the television receiver that is used for many images demonstrations comprises: the receiving system that is used to select and receive the sub-picture signal of a plurality of programs; Be used to be compressed in the Signal Compression device of the sub-picture signal that receiving system receives; Be used to store compressed picture signal, specify the storage device of writing position and read-out position from the output of Signal Compression device; Be used to specify the into control device of the writing position of compressed picture signal write storage device; Be used to specify the read-out control device of the read-out position of the compressed picture signal of reading from storage device; And be used for synthesizer that the compressed picture signal of reading from storage device and main image signal are synthesized;
Wherein, the compressed signal of a plurality of sub-pictures of memory device stores is specified adjoining position, and the picture signal of a plurality of adjacencies is read out simultaneously in contiguous position as sub-picture and shows.
A plurality of programs can be shown by gating demonstration or mobile image and show simultaneously.
According to the 5th invention, the television receiver that is used for many images demonstrations comprises: the receiving system that is used to select and receive the sub-picture signal; Be used to compress the Signal Compression device of sub-picture signal; Be used to store compressed picture signal, specify the storage device of writing position and read-out position from the output of Signal Compression device; Be used to specify the into control device that compressed picture signal is stored into the writing position of storage device; Be used to specify the read-out control device of the read-out position of the compressed picture signal of reading from storage device; And be used for synthesizer that the compressed picture signal of reading from storage device and main image signal are synthesized;
Wherein read-out control device can change the order that picture signal is read from storage device.
In each or each frame desaturation data and in the picture signal write storage device, this picture signal can be read out according to opposite order and show in time, and the typical image that chooses can show in each or each frame.
Fig. 1 is the block diagram of first embodiment according to the invention in the sub-picture control system of the television receiver that is used for many images demonstrations.
How Fig. 2 has described information stores in the field memory of Fig. 1.
Fig. 2 (a) is a kind of situation of the prior art.
Fig. 2 (b) is the situation (in the present invention) when having only in a pair of any to be used.
Fig. 3 describes first embodiment according to the invention, is used for the demonstration on the television receiver that many images show.
Fig. 4 has described according to second embodiment of the present invention, how with the field memory of information stores to the sub-picture control system of the television receiver that is used for many images demonstrations.
Fig. 5 has described according to second embodiment of the present invention, is used for the demonstration on the television receiver that many images show.
Fig. 6 has described according to the 3rd embodiment of the present invention, is used for the demonstration on the television receiver that many images show.
(first embodiment)
Below with reference to Fig. 1,2 and 3, the television receiver with many image display functions according to first embodiment of the invention is made an explanation.
In Fig. 1, square 1 is one and is used for the receiver (claiming the sub-picture tuner after this) that sub-picture is selected, and is used for received tv broadcast signal and be that a sub-picture is selected channel.Square 2 is one and is used for the receiver (claiming the master image tuner after this) that master image is selected, and is used for received tv broadcast signal and be that a master image is selected channel.Square 3 is one and flatly reaches the Signal compressor that vertically compresses received signal according to size of images.Square 7 is sub-picture display control circuits, be used to be received in being compressed of Signal compressor 3 outputs picture signal, the quality of compensating images selects arbitrary to show or frame demonstration and control storage write control signal generator 4 or memory read control-signals generator 5.
Below with reference to accompanying drawing, explain the function of the television receiver of first embodiment according to the invention.The gating of the sub-picture on the television receiver of many images shows that when a field in only using a pair of field showed sub-picture, control signal was provided to sub-picture display control circuit 7.In this case, image as much as possible has been written in the field memory 6.Sub-picture signal at the sub-picture tuner 1 of selecting and receiving is compressed into the sub-picture size that sets in Signal compressor 3, and represents that its signal that is a field shows is sent to memory write control-signals generator 4 and memory read control-signals generator 5.In the field memories 6, each all is written in the writing position that the field memory write control signal that provided by memory write control-signals generator 4 is provided with, and the time, a field among a pair of of the compressing image signal that provided by Signal compressor 3 only was provided.Picture signal in the write field memory 6 is stored in the zone of whole field memory 6, and does not have to be separated in the field memories 6 odd field and even field.Described among Fig. 2 (b) how with in the information stores field memories 6.
Under the prior art of in Fig. 2 (b), describing in the application of memory, even when only showing a field, the picture signal of two fields (being picture signal A to D (odd field or even field) and another picture signal A ' to D ' (another in a pair of)) is all in the write field memory 6, and when from field memory 6, reading image signal, select picture signal A to arrive D ' to D or another field picture signal A ', and by only using a field of a pair of to come display image signals.
But in the present invention, shown in Fig. 2 (b), can be by only writing the whole zone of a CY to CY memory 6, result to the picture signal E of D in same to H as picture signal A, shown in Fig. 2 (b), can store the effective picture signal that doubles the prior art time span.
Picture signal was read from the position of being set by field memory read control signal generator 5 in each fixing moment, and was provided to sub-picture display control circuit 7.From the sub-picture signal of sub-picture display control circuit 7 and from the main image signal of master image tuner 2 at image synthesizer 8 places synthetic master image and sub-picture and offer image display 9.If selected the holding high office of signal is shown on the television receiver, this receiver demonstration doubles the image that prior art can show.
Therefore, when by a field display, by selecting how to use memory, frame shows or when showing to come display image, and the quantity of the field of displayable picture signal can be by only increasing in the whole zone with the picture signal write field memory of a field of a pair of.
In above-mentioned explanation, can be by offering sub-picture display control circuit 7 from the outside with a control signal, or in sub-picture display control circuit 7, set in advance alternative condition and select frame to show or show.
(second embodiment)
Below with reference to Fig. 1,4 and 5, explain many image display functions according to a second embodiment of the present invention television receiver.
Fig. 4 has described when showing two programs simultaneously, the picture signal of two programs (program A and program B) is write the position of the vicinity of the field memory 6 that sub-picture shows.Fig. 5 has described image shown when showing two programs by the gating display simultaneously on a screen.
Explained later has the function of television receiver of second embodiment of many image display functions.When the gating display that shows when the image of two programs sub-picture by many images television set showed simultaneously, two programs were selected and be received in order at the tuner place of sub-picture shown in Figure 1.Each received picture signal is compressed in Signal compressor 3, offers sub-picture display control circuit 7 then, and the picture signal of the compression that provides from sub-picture display control circuit 7 is stored in the field memory 6.Send a control signal from sub-picture display control circuit 7, to set writing position at memory write control-signals generator 4 places.Described among Fig. 4 how with in the information stores field memories 6.Field of the signal of program A and B then is written into adjoining square in a place.
By being set at memory read control-signals generator 5 places, a picture signal of reading sequential program A and program B can read with a sub-picture simultaneously, so that the adjoining square in the field memory 6 shows as gating, the result, as shown in Figure 5, the image from program A and program B can be simultaneously displayed on the screen by the gating demonstration.
Show and the image more than two can be shown on a screen as a sub-picture by gating.
Except adjoining square, can also read control setting in square arbitrarily with what be stored in program in the field memory 6.In this case, can be presented on the screen by gating by control signal being offered sub-picture display control circuit 7, have the image that is stored in the various combinations of two programs in the field memory 6.
(the 3rd embodiment)
Below with reference to Fig. 1 and 6, explain the television receiver with many image display functions of a third embodiment in accordance with the invention.
Fig. 6 has described the sub-picture that is presented on the master image, and the master image level and vertical synchronizing signal, stipulates the level and the vertical Y S signal of the viewing area of sub-picture in addition.
Explained later is shown to the conversion of single demonstration of the sub-picture of a program from the sub-picture of two programs the time.As shown in Figure 6, set the level in indicated number zone and the starting position and the width of vertical Y S signal by calculating the position from level and vertical synchronizing signal with the level of and master image and vertical synchronizing signal clock signal synchronous.Specify the YS signal of the viewing area of sub-picture to be provided for the image synthesizer 8 shown in Fig. 1, thereby specified the viewing area of sub-picture for master image.
When two sub-pictures of two programs are shown in the position of two vicinities, the position of sub-picture is controlled by the YS signal of the horizontal width with two images, and after the sub-picture demonstration is converted to the demonstration of a program, if having demonstration that the YS signal of the horizontal width of an image offered 8, two programs of image synthesizer can easily be converted to a program and show.The YS signal can be the signal that is provided to image synthesizer 8 from the outside, or the signal that calculates at sub-picture display control circuit 7 places, can automatically on an optimum position, showing, and the result who calculates is provided for image synthesizer 8, and in image synthesizer 8 place's Be Controlled.
Can also be used for more than plural image, and can be used for a plurality of images at vertical close position, the quantity of display image can be specified the sub-picture position and be provided for master image that and the level of the YS signal of the image synthesizer 8 of sub-picture or vertical size changes by changing.
Therefore, the change of the quantity of sub-picture can be by change to specify the sub-picture position and be provided for master image and the level or the vertical dimension of the YS signal of the image synthesizer of sub-picture 8 realize on the master image.
(the 4th embodiment)
Explain the television receiver with many image display functions of a fourth embodiment in accordance with the invention below with reference to Fig. 1.
In Fig. 1, compress at Signal compressor 3 in the picture signal of the sub-picture that is used for the selection of sub-picture tuner 1 place and receives, and be sent to sub-picture display control circuit 7.When the signal that provides from sub-picture display control circuit 7 was provided for memory write control-signals generator 4, described generator 4 was controlled, in the writing position with the appointment of picture signal write field memory 6.Picture signal is read in memory read control-signals generator 5 place appointed positions from field memory 6.In this case, when the picture signal that writes turn around on according to the time call over the time, if the signal read of control with picture signal write field memory 6 opposite orders are provided to memory read control-signals generator 5 from sub-picture display control circuit 7, then program can be read from memory according to the opposite order of write field memory 6.
Therefore, the order of reading by at memory read control-signals generator 5 place's controlling filed memories 6 shows that simultaneously the sub-picture of two programs can show according to the order with the reversed in order of reading.
If the write and read position in the field memory 6 only is designated as the image of an arbitrary image signal, then this image can be used as a sub-picture and is presented on the screen, at this moment reads an image in the image of only being stored from field memory 6.
Therefore, according to sub-picture display control circuit of the present invention, specify writing position and reading location in the field memory by being controlled at for image, increased the effective quantity that is stored in the picture signal in the field memory when field shows, and can show a plurality of images simultaneously, can also show or opposite sequential demonstration by gating, and the quantity of the image that shows can change.
Under the condition that does not deviate from spirit of the present invention or character, the present invention may be implemented as other form particularly.Therefore, the embodiment here is illustrative and nonrestrictive certainly, and scope of the present invention is by the definition of appended claim, rather than the top description of carrying out, therefore, comprised with the claim meaning of equal value mutually and all variations in the scope.
Claims (5)
1. one kind is used for the television receiver that many images show, it is characterized in that comprising:
Be used at random reaching independently and be provided with or select the writing position of storage device and reading location device with storage sub-picture signal; And
Be used for selecting to write picture signal, with each frame or each of a pair of with the device of described signal storage in described storage device.
2. one kind is used for the television receiver that many images show, it is characterized in that comprising:
Be used to select and receive the receiving system of sub-picture signal;
Be used to compress the data compression device of described sub-picture signal;
Be used to store compressed signal, specify the storage device of writing position and reading location from described storage device output;
Be used for specifying the apparatus for controlling of described compressing image signal writing position to described storage device;
Be used to specify the described compressed signal of reading from described storage device reading location read control device;
Be used for the synthetic compressing image signal of reading from described storage device and the synthesizer of main image signal.
3. one kind is used for the television receiver that many images show, it is characterized in that,
The sub-picture signal of a plurality of programs is selected in order and is received, compress along horizontal or vertical direction, and be stored in the position adjoining in the storage device, the reading location of described storage device is assigned to described a plurality of program, and described a plurality of picture signals are read simultaneously.
4. one kind is used for the television receiver that many images show, it is characterized in that comprising:
Be used to select and receive the receiving system of the sub-picture signal of a plurality of programs;
Be used to be compressed in the Signal Compression device of the received described sub-picture signal of described receiving system;
Be used for storing the described compressing image signal of exporting from described Signal Compression device, specify the storage device of writing position and reading location;
Be used to specify the apparatus for controlling that writes the writing position of described compressing image signal at described storage device;
Be used to indicate the described compressing image signal of reading from described storage device reading location read control device;
Be used for the synthetic described compressing image signal of reading from described storage device and the synthesizer of main image signal;
Wherein, the compressed signal of a plurality of sub-pictures of described memory device stores is specified adjoining position, and the picture signal of the program of described a plurality of vicinities is read out simultaneously and shows as sub-picture in adjoining position.
5. one kind is used for the television receiver that many images show, it is characterized in that comprising:
Be used to select and receive the receiving system of sub-picture signal;
Be used to compress the Signal Compression device of described sub-picture signal;
Be used to store the described compressing image signal of reading from described Signal Compression device, the storage device of indication writing position and reading location;
Be used to specify the apparatus for controlling that writes the writing position of described compressing image signal at described storage device;
Be used to specify the described compressing image signal of reading from described storage device reading location read control device; And
Be used for the synthetic described compressing image signal of reading from described storage device and the synthesizer of main image signal;
Wherein, the described control device of reading can change the order of reading described picture signal from described storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98105204A CN1194537A (en) | 1997-02-20 | 1998-02-20 | Television receiver for multiple image display |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35861/97 | 1997-02-20 | ||
| CN98105204A CN1194537A (en) | 1997-02-20 | 1998-02-20 | Television receiver for multiple image display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1194537A true CN1194537A (en) | 1998-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98105204A Pending CN1194537A (en) | 1997-02-20 | 1998-02-20 | Television receiver for multiple image display |
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| Country | Link |
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| CN (1) | CN1194537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541496A (en) * | 2010-11-04 | 2012-07-04 | 佳能株式会社 | Display apparatus, information processing apparatus, display apparatus control method and information processing apparatus control method |
-
1998
- 1998-02-20 CN CN98105204A patent/CN1194537A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541496A (en) * | 2010-11-04 | 2012-07-04 | 佳能株式会社 | Display apparatus, information processing apparatus, display apparatus control method and information processing apparatus control method |
| CN102541496B (en) * | 2010-11-04 | 2014-12-10 | 佳能株式会社 | Display apparatus, information processing apparatus, display apparatus control method,information processing apparatus control method, and image display system |
| US9294747B2 (en) | 2010-11-04 | 2016-03-22 | Canon Kabushiki Kaisha | Display apparatus, information processing apparatus, image display system, display apparatus control method and information processing apparatus control method |
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