CN1072880C - Still and its control method for dynamic TV picture - Google Patents
Still and its control method for dynamic TV picture Download PDFInfo
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- CN1072880C CN1072880C CN97123330A CN97123330A CN1072880C CN 1072880 C CN1072880 C CN 1072880C CN 97123330 A CN97123330 A CN 97123330A CN 97123330 A CN97123330 A CN 97123330A CN 1072880 C CN1072880 C CN 1072880C
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Abstract
The present invention relates to a persistence and control method for a dynamic picture of a television, which comprises a television set host machine part and a digital picture in picture part. The present invention is characterized in that a, a 'persistence' key is arranged on a remote controller, and an analog switch is arranged in a television set; b, a video signal of a main picture introduced by the analog switch is continuously tracked and processed by a digital picture in picture processing unit; c, after the host machine receives a persistence command sent by the 'persistence' key, a central processing unit confirms that the analog switch is cast to the side of a medium frequency unit in the host machine part, a digital picture in picture unit carries out picture in picture processing and still image processing for the video signal of a main screen, and a persistent picture is displayed at the preset position of the main screen; d, the digital picture in picture processing unit continues to receive subsequent contents, and when the 'persistence' command is received again, a new persistent picture covers the original persistent picture.
Description
The present invention relates to a kind of TV tech, more particularly relate to a kind of control method that persists of TV dynamic image.
In the information age of today, TV has become one of most important medium of information propagation.People have accounted for critical role from the information that video screen obtains.People can have such sensation, will from countless changes, one dodge promptly lose video screen on intactly write down an information of interest not a duck soup, in addition these information often all are paroxysmal, unforeseen, such as certain personage, certain place or certain section literal.In order to see other television image simultaneously when watching a TV programme, people have invented picture-in-picture techniques.It is earlier with a TV signal digitlization, carries out Digital Signal Processing then, and the digital signal of handling is changed back analog signal again, and timing is inserted in the row of existing TV signal, and the tv effect of picture is arranged in the formation picture.Therefore picture-in-picture techniques is exactly an index word picture-in-picture techniques, and english abbreviation is PIP.Though but picture-in-picture techniques has self still image function, and key frame is persisted.In addition, at present developed country's digital television techniques of stepping up research promotion can fundamentally solve dynamic menu and persist problem, but its technical difficulty is big, and the costliness of cost also took 8 years or the longer time could promote in China at least.
The object of the present invention is to provide a kind ofly based on digital picture-in-picture techniques, simple and practical, with low cost, implement easily, can carry out persisting and control method of TV dynamic image that TV dynamic image persists in real time.
The objective of the invention is to realize as follows:
The present invention includes host machine part and digital picture-in-picture part, it is characterized in that:
A, " persisting " key is set on remote controller, and in television set, is provided with one respectively with intermediate frequency unit, the digital picture-in-picture processing unit of the intermediate frequency unit of host machine part, picture-in-picture part and carry out the analog switch that digital picture-in-picture processing controls links to each other with the central processing unit that persists control (CPU);
B, the vision signal of the key frame introduced through analog switch is followed the tracks of processing incessantly by digital picture-in-picture processing unit;
C, receive by " persisting " key send persist order after, central processing unit affirmation analog switch is thrown the main screen vision signal one side to host machine part, after numeral picture-in-picture unit carries out picture-in-picture processing and still image processing to this signal, deliver to the R.G.B interface of host machine part in R.G.B carrier chrominance signal mode, will persist picture and be shown in the main screen precalculated position;
D, digital picture-in-picture processing unit continue to receive subsequent content, and when receiving " persisting " order again, the new picture that persists just covers original picture that persists.
Feature of the present invention also is, receive persist order after, central processing unit and digital picture-in-picture processing unit carry out persisting of TV dynamic image by following program:
A, receive remote control mode and be when persisting command code that if the screen picture-in-picture is not opened, when promptly screen did not have the picture-in-picture sprite, opened and static sprite this moment, key frame that can this moment persists;
Analog switch should be thrown main screen vision signal if b. existing picture-in-picture is shown in main screen earlier, open again and static sprite can realize that key frame persists to host machine part;
C, when the remote control mode of receiving be the sprite switching code, central processing unit at first will be judged the Push And Release of sprite, if not having sprite exists, and central processing unit is judged should carry out picture-in-picture function, then analog switch is turned to the picture-in-picture passage, and opens the picture-in-picture sprite, the sprite of show events, show that if sprite is existing no matter be picture-in-picture or persist picture, central processing unit all can cut out this sprite;
D, close sprite after, analog switch turns to the key frame passage.
When operation persisted key, the image of in progress TV key frame dwindled immediately, and persists one jiao of screen, and key frame is play as usual.
Whether tube television receiver is not current is in picture-in-picture or persists state, as long as by persisting key, all can realize persisting function, and persists picture and the picture-in-picture picture is closed by same key.
Carrying out digital picture-in-picture processing controls can be shared one with the central processing unit of central processing unit that persists control and main frame, also can separated into two parts.
Basis of the present invention is the digital picture-in-picture techniques of TV.Since after the digitlization TV signal extremely be convenient to storage and handle, so many functions of picture-in-picture are all handled the position of realizing son and drawing, size, still image etc. by central processing unit at an easy rate.Thereby, can realize the transient state of key frame is persisted with the picture-in-picture form.And the persisting of TV dynamic image, the persisting of the self-evident dynamic image that is meant TV main screen program.As seen from Figure 1, host machine part demodulate vision signal to deliver to digital picture-in-picture processing unit through analog switch, the effect of analog switch is, do not using when persisting function, complete machine keeps having picture-in-picture function, when having picture-in-picture to show, analog switch is thrown the intermediate frequency unit one side to the picture-in-picture part.When receiving head, remote control receives when persisting order, central processing unit order analog switch is thrown the one side, dominant frequency unit to host machine part, numeral picture-in-picture processing unit to persist signal do picture-in-picture handle handle with still image after, one jiao of screen shows a static picture that persists.Because this a series of actions is to finish in the extremely short time, thus give the people feel remote controller the time an instant picture " subsides " that persists has just been arranged in one jiao of screen.Above-mentioned still image is that the picture still with activity gets off.This is because the picture-in-picture processing procedure is a digitlization processing procedure, is provided with the data-storing buffering area in digital picture-in-picture processing unit, as long as the data of buffering area constantly refresh, picture is movable, if do not refresh, picture is exactly static.
The present invention adapts to the requirement of information age, provides a kind of new means for obtain information from TV, also provides new function for TV.With the method that persists that the present invention proposes, people can capture one easily and dodge TV news, advertisement and other information of interest of promptly losing, and it is still on the screen, make people that sufficient time digestion be arranged and write down these information.Characteristics such as the present invention has simple and practical, and is easy to operate, with low cost, easy to implement, its enforcement will produce good society and economic benefit.
Fig. 1 is a theory diagram of the present invention.
Fig. 2 is a control method program flow diagram of the present invention.
Provide embodiments of the invention below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes the host machine part and the digital picture-in-picture part of existing picture in picture TV set, for the dynamic menu with TV persists, the present invention is provided with an analog switch, and this switch is respectively with intermediate frequency unit, the digital picture-in-picture processing unit of the intermediate frequency unit of host machine part, picture-in-picture part and carry out digital picture-in-picture processing controls and link to each other with the central processing unit that persists control.This analog switch adopts routine techniques, and its effect is the vision signal of key frame part or picture-in-picture video signal to be switched to the picture-in-picture processing unit persists or picture-in-picture is handled.Above-mentioned central processing unit is divided into two parts, and one is used for host computer control, the control that another is used for picture-in-picture and persists.The present invention is provided with " a persisting " key on TV remote controller, persist order and send by persisting key.In order to realize persisting of TV dynamic image, when television program transmission, the digital picture-in-picture processing unit of picture-in-picture part is followed the tracks of processing incessantly to the vision signal of the key frame introduced through analog switch, when people need persist certain dynamic menu on screen, as long as click " persisting " key gently, will send one " persisting " order.Receive above-mentioned persist order after, central processing unit just orders analog switch to be thrown to the main screen vision signal of host machine part on one side, after numeral picture-in-picture unit carries out picture-in-picture processing and still image processing to this signal, deliver to the R.G.B interface of host machine part in R.G.B carrier chrominance signal mode, so one jiao of screen will show a static picture that persists.It is at the data-storing buffering area of digital picture-in-picture processing unit refresh data not that above-mentioned still image is handled, and the picture still of activity can be got off.
Receive when persisting order, central processing unit and digital picture-in-picture processing unit then persist control by program shown in Figure 2: receive remote control mode and be when persisting command code, if the screen picture-in-picture circuit is not opened, be that screen is not when having the picture-in-picture sprite, central processing unit was opened sprite and was made the sprite still image and handle this moment, and key frame that can this moment persists.Analog switch should be thrown main screen vision signal if existing picture-in-picture is shown in main screen earlier, open again and static sprite can realize that key frame persists to host machine part.When the remote control mode of receiving is the sprite switching code, central processing unit at first will be judged the Push And Release of sprite, if not having sprite exists, and central processing unit is judged should carry out picture-in-picture function, then analog switch is turned to the picture-in-picture passage, and opens the picture-in-picture sprite, the sprite of show events, show that if sprite is existing no matter be picture-in-picture or persist picture, central processing unit all can cut out this sprite.After closing sprite, analog switch turns to the key frame passage.Do like this and can make that to persist action faster next time.
Because said process is to finish in the extremely short time, therefore, when operation persisted key, the image of in progress TV key frame dwindled immediately, and persists one jiao of screen, and key frame is play as usual.
According to control program of the present invention, whether tube television receiver is not current is in picture-in-picture or persists state, as long as by persisting key, all can realize persisting function, and persists picture and the picture-in-picture picture is closed by same key.
Claims (4)
1, comprise the persisting and control method of TV dynamic image of the television system of host machine part and digital picture-in-picture part, it is characterized in that comprising step:
A, " persisting " key is set on remote controller, and in television set, is provided with one respectively with intermediate frequency unit, the digital picture-in-picture processing unit of the intermediate frequency unit of host machine part, picture-in-picture part and carry out the analog switch that digital picture-in-picture processing controls links to each other with the central processing unit that persists control;
B, the vision signal of the key frame introduced through analog switch is followed the tracks of processing incessantly by digital picture-in-picture processing unit;
C, receive by " persisting " key send persist order after, central processing unit just orders analog switch to be thrown to the main screen vision signal of host machine part on one side, after numeral picture-in-picture unit carries out picture-in-picture processing and still image processing to this signal, deliver to the R.G.B interface of host machine part in R.G.B carrier chrominance signal mode, will persist picture and be shown in the main screen precalculated position;
D, digital picture-in-picture treatment circuit continue to receive subsequent content, and when receiving " persisting " order again, the new picture that persists just covers original picture that persists;
Receive persist order after, central processing unit and digital picture-in-picture processing unit carry out persisting of TV dynamic image by following program:
A, receive remote control mode and be when persisting command code that if the screen picture-in-picture circuit is not opened, when promptly screen did not have the picture-in-picture sprite, opened and static sprite this moment, key frame that can this moment persists;
Analog switch should be thrown main screen vision signal if the existing picture-in-picture of b is shown in main screen earlier, open again and static sprite can realize that key frame persists to host machine part;
C, when the remote control mode of receiving be the sprite switching code, central processing unit at first will be judged the Push And Release of sprite, if not having sprite exists, and central processing unit is judged should carry out picture-in-picture function, then analog switch is turned to the picture-in-picture passage, and opens the picture-in-picture sprite, the sprite of show events, show that if sprite is existing no matter be picture-in-picture or persist picture, central processing unit all can cut out this sprite;
D, close sprite after, analog switch turns to the key frame passage.
2, persisting and control method of TV dynamic image according to claim 1, when it is characterized in that operation persists key, the image of in progress TV key frame dwindles immediately, and persists one jiao of screen, and key frame is play as usual.
3, TV dynamic image according to claim 1 persists and control method, whether it is characterized in that tube television receiver is not current is in picture-in-picture or persists state, as long as by persisting key, all can realize persisting function, and persist picture and the picture-in-picture picture is closed by same key.
4, persisting and control method of TV dynamic image according to claim 1, it is characterized in that carrying out digital picture-in-picture processing controls can be shared one with the central processing unit of central processing unit that persists control and main frame, also can separated into two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97123330A CN1072880C (en) | 1997-12-02 | 1997-12-02 | Still and its control method for dynamic TV picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97123330A CN1072880C (en) | 1997-12-02 | 1997-12-02 | Still and its control method for dynamic TV picture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1190310A CN1190310A (en) | 1998-08-12 |
| CN1072880C true CN1072880C (en) | 2001-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97123330A Expired - Fee Related CN1072880C (en) | 1997-12-02 | 1997-12-02 | Still and its control method for dynamic TV picture |
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| Country | Link |
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| CN (1) | CN1072880C (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066554A (en) * | 1991-05-06 | 1992-11-25 | 汤姆森消费电子有限公司 | In the equipment of television system deflector according to the synchronizing signal positioning timing signal that produces |
-
1997
- 1997-12-02 CN CN97123330A patent/CN1072880C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066554A (en) * | 1991-05-06 | 1992-11-25 | 汤姆森消费电子有限公司 | In the equipment of television system deflector according to the synchronizing signal positioning timing signal that produces |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1190310A (en) | 1998-08-12 |
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Assignee: TCL King Electrical Appliance (Huizhou) Co., Ltd. Assignor: TCL King Electronics (Shenzhen) Co., Ltd. Contract fulfillment period: 2005.11.15 to 2010.11.14 contract change Contract record no.: 2008990000662 Denomination of invention: Still and its control method for dynamic TV picture Granted publication date: 20011010 License type: Exclusive license Record date: 20081010 |
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Owner name: SHENZHEN TCL NEW TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TCL KING ELECTRICAL APPLIANCES (SHENZHEN) CO., LTD. Effective date: 20110212 |
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