CN1307567C - System for switching display status and method thereof - Google Patents
System for switching display status and method thereof Download PDFInfo
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- CN1307567C CN1307567C CNB2003101218161A CN200310121816A CN1307567C CN 1307567 C CN1307567 C CN 1307567C CN B2003101218161 A CNB2003101218161 A CN B2003101218161A CN 200310121816 A CN200310121816 A CN 200310121816A CN 1307567 C CN1307567 C CN 1307567C
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Abstract
The present invention provides a system and a method thereof for switching display status. The system is used for switching the display status of an external connection display unit of a portable electronic device, wherein a connecting port is connected with a corresponding external connection display unit and triggered to generate an input signal; then, an electric level unit generates a triggering signal according to the signal to prompt a keyboard control unit (KBC) to send out a system control interrupt signal (SCI), so that a display control unit is informed to generate a corresponding output signal for switching the display status of the external connection display unit.
Description
Technical field
The present invention relates to a kind of system and method thereof of switching show state, be meant a kind of system and method thereof of switching show state relevant for portable electronic devices especially.
Background technology
Operating system with Microsoft (Microsoft) is example, shows signal will be exported to external display unit on portable electronic devices; In order to the method for impelling external display unit also to have the switching show state of display frame following several method is arranged: (1) hot key; (2) external display unit is set at main display unit; And (3) change display unit option, be respectively described below:
(1) hot key: external display unit is connected on the portable electronic devices, and the user activates the hot key (HotKey) of toggle screen then, and external display unit just can switch the situation that shows according to the default setting value of hot key.But be not the function that portable electronic devices is all supported this kind hot key at present.
(2) external display unit is set at main display unit: before the start portable electronic devices is gone up in external display unit connection, basic input/output system (Basic Input/Output System, BIOS) specification of the PC2100 SystemDesign Guide that is formulated is dominated in meeting according to Intel (Intel) company and company of Microsoft (Microsoft): portable electronic devices is during start, have in the external display unit connection if detect, just external display unit is set at main display unit, therefore the external display unit that is connected can display frame when start.If working as external display unit is televisor, then also inapplicable said method.
(3) utilize driver change display unit option: if will be with the display frame of external display unit televisor, switch to mode by the output of tool not picture with output picture, can be after entering operating system to the option of displaying contents, execution resets the program of display unit, running program is as follows: step 1, click the start menu option-＞step 2, click the setting option-＞step 3, click the control desk option-＞step 4, click Show Options-＞step 5, click the setting value option-＞step 6, click progressive Options-＞step 7, click the setting display option-＞step 8, click the affirmation option-＞step 9, click the option of starting shooting again, finish setting at last.
Above-mentioned several setting operation mode, making does not have the user of enough computer literacy backgrounds to produce many inconvenience and obstacle in the process of setting, and division is as follows: at first, the user need possess certain computer literacy; It is can be by setting the notion that driver and the handoff functionality that uses hot key are reached that the user need possess the show state that understand to switch external display unit; Moreover, the operating process complexity finds it difficult to learn, user's interface is directly perceived inadequately, in every setting menu in driver in order to provide numerous, so the user must understand in order to the required setting option of the show state that switches external display unit which option just can finish setting program for as the option that shows the adjustment project; Moreover, user's selected setting option in setting option all is correct, the user still need carry out a plurality of programs in regular turn, even may also need again the activation manipulation system, external display unit can be reached the purpose of switching show state, above-mentioned setting step is set to the purpose that external display unit is reached the switching show state from beginning to carry out, and required setting-up time need spend 5 minutes approximately; In addition, if the correctly situation of display frame takes place in the built-in display unit of portable electronic devices, this moment, the importance of external display unit also need not be added explanation again, suppose that again this device does not have the hot key handoff functionality, do not having correct display frame but will impel external display unit can switch show state, in order to continue carrying out uncompleted work, several setting programs of required execution are not to be that general user can be unlabored.
Therefore, portable electronic devices is if can provide very easy setting means just can switch the show state of external display unit, and when built-in display unit generation problem, can use external display unit to take over easily, continue the value that execution work can promote market greatly, so we are just needing a kind of system that can switch show state and method thereof to solve deficiency on the aforementioned techniques.
Summary of the invention
In view of this, the present invention provides a kind of system and method thereof of switching show state for the user of solving over uses the inconvenience of external display unit on portable electronic devices, and this system and method thereof mainly are:
Utilize external display unit and triggering for generating one signal in linkage unit (Connect Port) connection, one voltage potential unit is provided, produce a trigger pip according to above-mentioned signal, impel Keyboard Control unit (Keyboard Control, KBC) send control look-at-me (the System Control Interrupt of system, SCI), produce corresponding output signal in order to the notice indicative control unit, in order to switch the show state of external display unit.
Technical scheme of the present invention is achieved in that a kind of system of switching show state, and in order to change the show state of an external display unit, this system comprises: a linkage unit connects this external display unit and triggering for generating one input signal; One level-cell connects this linkage unit, and in order to according to this input signal, the variation by voltage level in this level-cell produces a trigger pip; One Keyboard Control unit connects this level-cell, in order to produce a look-at-me according to this trigger pip; And an indicative control unit, connect this Keyboard Control unit, in order to change the show state of this external display unit via this linkage unit according to this look-at-me.
The present invention also provides a kind of method of switching show state, and in order to change the show state of an external display unit, this method comprises the following step: connect this external display unit, and triggering for generating one input signal; According to this input signal, the variation by voltage level in the level-cell produces a trigger pip; Produce a look-at-me according to this trigger pip; Reach the show state that changes external display unit according to this look-at-me.
The present invention also provides a kind of system of switching show state, and in order to change the show state of a plurality of external display units, this device comprises: a plurality of linkage units, this external display unit of man-to-man connection, and a plurality of input signals of triggering for generating; A plurality of level-cells, this linkage unit of man-to-man connection, in order to according to described a plurality of input signals, the variation by voltage level in described a plurality of level-cells produces a plurality of trigger pips; And a Keyboard Control unit, via this level-cell of the man-to-man connection of a plurality of general-purpose input and output pins, in order to produce a plurality of look-at-mes according to described a plurality of trigger pips; And an indicative control unit, connect this Keyboard Control unit, in order to change the show state of corresponding external display unit via the linkage unit of correspondence according to described a plurality of look-at-mes.
The present invention also provides a kind of method of switching show state, and in order to switch the show state of a plurality of external display units, this method comprises the following step: connect described a plurality of external display unit, and a plurality of input signals of triggering for generating; Variation by voltage level in a plurality of level-cells produces a plurality of trigger pips according to described a plurality of input signals; Produce a plurality of look-at-mes according to described a plurality of trigger pips; Reach the show state that switches corresponding external display unit according to described a plurality of look-at-mes.
Description of drawings
Fig. 1 is the system architecture calcspar of first embodiment of the system of switching show state provided by the present invention;
Fig. 2 is the method flow diagram of first embodiment of the method for switching show state provided by the present invention;
Fig. 3 is the system architecture calcspar of second embodiment of the system of switching show state provided by the present invention; And
Fig. 4 is the method flow diagram of second embodiment of the method for switching show state provided by the present invention.
Wherein, description of reference numerals is as follows:
2 external display unit 4 linkage units
6 level-cells, 8 Keyboard Control unit
10 indicative control units, 20 first external display units
22 first linkage units, 24 first level-cells
The external display unit 32 n linkage units of 30 n
More than 40 external display units of 34 n level-cells
More than 44 level-cell of more than 42 linkage unit
46 Keyboard Control unit, 48 indicative control units
A plurality of external display units and a plurality of input signals of triggering for generating in the man-to-man connection of many linkage units of step 500;
Embodiment
The feasible embodiment of relevant the present invention, existing accompanying drawings is as follows:
A kind of system and method thereof of switching show state, show state in order to the external display unit that switches portable electronic devices, wherein utilize external display unit and input signal of triggering for generating corresponding in linkage unit (Connect Port) connection, produce a trigger pip by a level-cell according to above-mentioned signal then, impel Keyboard Control unit (Keyboard Control, KBC) send control look-at-me (the System Control Interrupt of system, SCI), produce corresponding output signal with the notice indicative control unit, in order to switch the show state of external display unit.
The external display unit that is provided in an embodiment of the present invention is selected from: cathode-ray tube (Cathode Ray Tube Display, CRT), LCD (Liquid Crystal Display, LCD), digital visual interface LCD (Digital Visual Interface Liquid Crystal Display, DVILCD), and televisor (Television, TV) ... etc.
Please refer to shown in Figure 1ly, be the system architecture diagram of first embodiment of a kind of system of switching show state disclosed in this invention.Its main system function module comprises (1) linkage unit 4; (2) level-cell 6; (3) the Keyboard Control unit 8; And (4) indicative control unit 10, be respectively described below:
(1) linkage unit 4, in order to connect external display unit 2 and triggering for generating one input signal.Wherein, the above-mentioned input signal that produces is a high/low voltage signal; Linkage unit 4 is that portable electronic devices is in order to the communication interface of transmission/received signal to external display unit 2; Therefore, linkage unit 4 is selected from: video output S terminal connectivity port (TV-Out S-Video Port), cathode-ray tube connectivity port (CRT Port), and digital visual interface (Digital Visual Interface) ... etc.
(2) level-cell 6, are connected in linkage unit 4, and the input signal that is produced according to linkage unit 4 is in order to produce a trigger pip.Wherein, this level-cell 6 is a voltage potential circuit, the setting of this circuit is that the signal of importing according to linkage unit 4 is high/low voltage signal, be set to drag down/draw high voltage potential circuit (Pull Low/Pull High Voltage Circuit) individually accordingly, when the input signal of linkage unit 4 passes through level-cell 6, the voltage level of voltage potential circuit can change (high-voltage variable is that low-voltage, low-voltage become high voltage), and level-cell 6 can be according to the variation of above-mentioned generation as a trigger pip that offers Keyboard Control unit 8.
(3) the Keyboard Control unit 8, be to connect (General PurposeInput/Output Pin via a general-purpose input and output pin, GPIO Pin) in level-cell 6, and according to the trigger pip that level-cell 6 produces produce can with Basic Input or Output System (BIOS) (Basic Input/Output System, BIOS) system's control look-at-me of linking up, and by the corresponding output signal of Basic Input or Output System (BIOS) notice indicative control unit 10 generations, in order to switch the show state of external display unit 2.Wherein, Keyboard Control unit 8 is pins via the general-purpose input and output pin, receives above-mentioned trigger pip.
(4) indicative control unit 10, be connected in Keyboard Control unit 8, and be connected with external display unit 2 by linkage unit 4, and according to above-mentioned system control look-at-me in order to produce corresponding output signal, and the result transferred to external display unit 2 by linkage unit 4, in order to switch the show state of external display unit 2.
Please refer to shown in Figure 2ly, be the method flow diagram of first embodiment of a kind of method of switching show state disclosed in this invention, this method comprises the following step:
Linkage unit 4 connects the input signal (step 400) of external display unit 2 and a high/low voltage of triggering for generating.Impel a level-cell 6 to produce a trigger pip according to input signal; Wherein, drag down/draw high the voltage potential circuit when input signal is corresponding in by level-cell 6, because of voltage signal and the level-cell 6 interior voltage potential circuit of input are that (if when the voltage potential circuit is drawn high voltage potential, the input voltage that is provided must be a low-voltage to reverse voltage; When if the voltage potential circuit drags down the voltage potential circuit, the input voltage that is provided must be a high voltage) thus level-cell 6 in the voltage level of voltage potential circuit can change (high-voltage variable is that low-voltage, low-voltage become high voltage).And level-cell 6 can be according to the variation of above-mentioned voltage level as a trigger pip (step 402) that offers Keyboard Control unit 8.Keyboard Control unit 8 will be according to above-mentioned trigger pip, generation system control look-at-me, system's control look-at-me that Basic Input or Output System (BIOS) is produced according to Keyboard Control unit 8, read the information that Keyboard Control unit 8 is provided, above-mentioned information can go up external display unit 2 in order to confirm that linkage unit 4 connects, and according to the above-mentioned corresponding output signal of information notice indicative control unit 10 generations, in order to switch the show state of external display unit.
Please refer to shown in Figure 3ly, be the system architecture diagram of second embodiment of a kind of system of switching show state disclosed in this invention, its main system function module comprises (1) a plurality of linkage units 42 (first linkage unit, 22～the n linkage units 32); (2) a plurality of level-cells 44 (first level-cell, 24～the n level-cell unit 34); (3) the Keyboard Control unit 46; And (4) indicative control unit 48, be respectively described below:
(1) a plurality of linkage units 42 (first linkage unit, 22～the n linkage units 32), a plurality of linkage units 42 are a plurality of external display units 40 in the man-to-man connection (the external display unit 30 of first external display unit 20～the n) and a plurality of input signals of triggering for generating; Wherein, input signal can be respectively a plurality of high/low voltage signals; A plurality of linkage units 42 are that portable electronic devices is in order to the communication interface of transmission/received signal to a plurality of external display unit 40 that connects one to one; Therefore, a plurality of linkage units 42 are selected from: video output S terminal connectivity port (TV-out S-video Port), cathode-ray tube connectivity port (CRTPort), and digital visual interface (Digital Visual Interface, DVI) ... etc.
(2) a plurality of level-cells 44 (first level-cell, 24～the n level-cell unit 34), be the man-to-man a plurality of linkage units 42 (first linkage unit, 22～the n linkage units 32) that are connected in, and according to 42 high/low voltage signals of importing one to one of a plurality of linkage units, in order to produce a plurality of trigger pips.Wherein, a plurality of level-cells 44 are made up of a plurality of voltage potential circuit, and the setting of this circuit, be that the input signal that produces according to a plurality of linkage units 42 (first linkage unit, 22～the n linkage units 32) is high/low voltage signal, and a plurality of level-cells 44 that will connect one to one individually are set to drag down/draw high voltage potential circuit (Pull Low/Pull High Voltage Circuit).A plurality of input signals of a plurality of linkage unit 42 triggering for generating, during a plurality of level-cell 44 by connecting one to one, the voltage level of the voltage potential circuit in a plurality of level-cells 44 can change (high-voltage variable is that low-voltage, low-voltage become high voltage), a plurality of level-cells 44 with the variation of above-mentioned generation as a plurality of trigger pips that offer Keyboard Control unit 46.
(3) the Keyboard Control unit 46, utilize a plurality of general-purpose input and output pins (General PurposeInput/Output Pin, GPIO Pin) man-to-man and a plurality of level-cells 44 are connected, a plurality of trigger pips according to a plurality of level-cells 44 generations, in order to produce a plurality of systems control look-at-me of linking up with Basic Input or Output System (BIOS), and by the corresponding output signal of Basic Input or Output System (BIOS) notice indicative control unit 48 generations, in order to the show state of a plurality of external display units 40 of man-to-man switching (the external display unit 30 of first external display unit 20～the n).Wherein, Keyboard Control unit 46 receives above-mentioned a plurality of trigger pips via a plurality of general-purpose input and output pins (General Purpose Input/Output Pin, GPIO Pin).Wherein, Keyboard Control unit 46 is gone up external display unit according to the different received trigger pips of general-purpose input and output pin in order to judge which linkage unit connects.
(4) indicative control unit 48, are connected in Keyboard Control unit 46, and are connected with a plurality of external display units 40 by a plurality of linkage units 42, and control look-at-me in order to produce corresponding output signal according to above-mentioned a plurality of systems.And signal is transferred to man-to-man external display unit 40 by a plurality of linkage units 42, in order to individually to switch the show state of external display unit 40.
Please refer to shown in Figure 4ly, be the method flow diagram of second embodiment of a kind of method of switching show state disclosed in this invention, this method comprises the following step:
The input signal (step 500) of a plurality of external display units 40 (the external display unit 30 of first external display unit 20～the n) and a plurality of high/low voltages of triggering for generating in the man-to-man connection of a plurality of linkage units 42 (first linkage unit, 22～the n linkage units 32).Impel a plurality of level-cells 44 (first level-cell, 24～the n level-cell unit 34) that are connected one to one with a plurality of linkage units 42 to produce a plurality of trigger pips according to above-mentioned a plurality of input signals.Wherein, when a plurality of input signals by dragging down/draw high the voltage potential circuit in a plurality of level-cells 44, the input signal that produces because of a plurality of linkage units 42 is that (if when voltage potential circuit one is drawn high the voltage potential circuit, input voltage must be a low-voltage to reverse voltage with the level-cell 44 interior voltage potential circuit that linkage unit 42 is connected one to one; When if voltage potential circuit one drags down the voltage potential circuit, input voltage must be a high voltage).Therefore, the voltage level of voltage potential circuit can individually change (high-voltage variable is that low-voltage, low-voltage become high voltage) in a plurality of level-cells 44.A plurality of level-cells 44 can be according to above-mentioned voltage level change as a plurality of trigger pips (step 402) that offer Keyboard Control unit 46.Keyboard Control unit 46 can individually produce a plurality of systems control look-at-me according to above-mentioned trigger pip.Wherein, Keyboard Control unit 46 can provide man-to-man a plurality of different general-purpose input and output pins according to different a plurality of level-cells 44, in order to confirm which voltage level changes in a plurality of level-cells 44; That is external display unit is gone up in 42 which connection in a plurality of linkage units.Basic Input or Output System (BIOS) can be controlled look-at-me according to the system that Keyboard Control unit 46 is produced, read the information that Keyboard Control unit 46 is provided, this information is in order to confirm external display unit is gone up in 42 which connection in a plurality of linkage units, Basic Input or Output System (BIOS) and according to above-mentioned information, notice indicative control unit 48 produces corresponding output signal, in order to switch the show state of corresponding a plurality of external display unit 40 (the external display unit 30 of first external display unit 20～the n).
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention; Be that all equalizations of doing according to embodiments of the invention change and modify, the protection domain that all should be claims of the present invention and defined is contained.
Claims (12)
1. system of switching show state, in order to change the show state of an external display unit, this system comprises:
One linkage unit connects this external display unit and triggering for generating one input signal;
One level-cell connects this linkage unit, and in order to according to this input signal, the variation by voltage level in this level-cell produces a trigger pip;
One Keyboard Control unit connects this level-cell, in order to produce a look-at-me according to this trigger pip; And
One indicative control unit connects this Keyboard Control unit, in order to change the show state of this external display unit via this linkage unit according to this look-at-me.
2. the system of switching show state as claimed in claim 1, wherein this external display unit is selected from: cathode-ray tube, LCD, digital visual interface LCD, and one of televisor.
3. the system of switching show state as claimed in claim 1, wherein this linkage unit is selected from: cathode-ray tube connectivity port, digital visual interface, and one of TV video output S terminal connectivity port.
4. the system of switching show state as claimed in claim 1, wherein this look-at-me of this Keyboard Control unit output is a system control look-at-me.
5. method of switching show state, in order to change the show state of an external display unit, this method comprises the following step:
Connect this external display unit, and triggering for generating one input signal;
Variation by voltage level in the level-cell produces a trigger pip according to this input signal;
Produce a look-at-me according to this trigger pip; And
Change the show state of external display unit according to this look-at-me.
6. the method for switching show state as claimed in claim 5, wherein this look-at-me of this Keyboard Control unit output is a system control look-at-me.
7. system of switching show state, in order to change the show state of a plurality of external display units, this device comprises:
A plurality of linkage units, this external display unit of man-to-man connection, and a plurality of input signals of triggering for generating;
A plurality of level-cells, this linkage unit of man-to-man connection, in order to according to this input signal, the variation by voltage level in described a plurality of level-cells produces a plurality of trigger pips; And
One Keyboard Control unit is via this level-cell of the man-to-man connection of a plurality of general-purpose input and output pins, in order to produce a plurality of look-at-mes according to described a plurality of trigger pips; And
One indicative control unit connects this Keyboard Control unit, in order to change the show state of corresponding external display unit via the linkage unit of correspondence according to described a plurality of look-at-mes.
8. the system of switching show state as claimed in claim 7, wherein this external display unit is selected from: cathode-ray tube, LCD, digital visual interface LCD, and televisor.
9. the system of switching show state as claimed in claim 7, wherein this linkage unit is selected from: cathode-ray tube connectivity port, digital visual interface, and TV video output S terminal connectivity port.
10. the system of switching show state as claimed in claim 7, wherein described a plurality of look-at-mes of this Keyboard Control unit output are a plurality of systems control look-at-mes.
11. a method of switching show state, in order to switch the show state of a plurality of external display units, this method comprises the following step:
Connect described a plurality of external display unit, and a plurality of input signals of triggering for generating;
Variation by voltage level in a plurality of level-cells produces a plurality of trigger pips according to described a plurality of input signals;
Produce a plurality of look-at-mes according to described a plurality of trigger pips; And
Switch the show state of corresponding a plurality of external display units according to described a plurality of look-at-mes.
12. the method for switching show state as claimed in claim 11, wherein described a plurality of look-at-mes of this Keyboard Control unit output are a plurality of systems control look-at-mes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101218161A CN1307567C (en) | 2003-12-19 | 2003-12-19 | System for switching display status and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101218161A CN1307567C (en) | 2003-12-19 | 2003-12-19 | System for switching display status and method thereof |
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| CN1629827A CN1629827A (en) | 2005-06-22 |
| CN1307567C true CN1307567C (en) | 2007-03-28 |
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| CN112626794B (en) * | 2020-12-31 | 2023-01-20 | Tcl家用电器（合肥）有限公司 | Display control method and device for multiple washing machine, computer equipment and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07170466A (en) * | 1993-12-13 | 1995-07-04 | Sony Corp | Picture display device |
| CN2233613Y (en) * | 1994-04-19 | 1996-08-21 | 四川托普科技发展公司 | Display screen for large electronic display system |
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2003
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07170466A (en) * | 1993-12-13 | 1995-07-04 | Sony Corp | Picture display device |
| CN2233613Y (en) * | 1994-04-19 | 1996-08-21 | 四川托普科技发展公司 | Display screen for large electronic display system |
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Granted publication date: 20070328 Termination date: 20101219 |