CN102043372A - Projector and control method thereof - Google Patents
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- CN102043372A CN102043372A CN2009101805628A CN200910180562A CN102043372A CN 102043372 A CN102043372 A CN 102043372A CN 2009101805628 A CN2009101805628 A CN 2009101805628A CN 200910180562 A CN200910180562 A CN 200910180562A CN 102043372 A CN102043372 A CN 102043372A
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Abstract
The invention relates to a projector and a control method thereof, in particular to a projector control method which is applied to a projector at a standby mode. The projector is connected with a video signal source in work so as to project an image, and the projector is provided with at least one signal input port. The projector control method comprises the following steps: electrically connecting the projector and the video signal source by a video signal line; checking whether a definition signal is generated at the projector terminal; and providing a power supply of the projector and illumining a lamp source of the projector after the definition signal is checked, thus the projector enters an active mode. In the technical scheme of the invention, when the video signal line connected with the video signal source in work is connected to the projector, the projector can work normally to execute the projection function, a manual mode is not required to start the power supply of the projector and to wait for the time of signal searching, so that the operation can be carried out by a user conveniently.
Description
Technical field
The present invention relates to a kind of projector and control method thereof, particularly a kind ofly can start projector, and allow projector find the port in vision signal source fast, and then project the control method of image by connecting video signal cable.
Background technology
When using projector to carry out image projecting in the past, can connect projector and video signal source by video signal cable, for example computer installation or multi-media player etc., outputting video signal after opening video signal source, and transmit vision signal to projector by video signal cable; And projector needs to operate its power switch to open the power supply of projector by the user, make projector body enter duty (active), and the lamp source preheating of waiting for projector can project light so that carry out image projecting after finishing from holding state (standby).In recent years because the straighforward operation development of technology makes projector increase the function of utilizing the telepilot power-on, to make things convenient for the user in operated from a distance projector.
Moreover the signal input port of projector is not only a kind of now, for example specifications such as VGA, DVI, HDMI is arranged, even also has the signal input port of two or more same types.And projector is still after each power-on, search for all signal input ports successively, when finding that arbitrary signal input port has the vision signal input, just its image can be throwed away.
Yet with the notebook computer is example, and can be fixedly set in projector's periphery not as general desktop PC, make at every turn in the time of need connecting projector and carry out projection with notebook computer, all must and open projector's power supply and carry out step such as video signal source search through the connection of video signal cable, if can reduce the execution of correlation step, the usability of projector will be improved.
Summary of the invention
It is a kind of by connecting projector's control method that video signal cable can start projector and find the correct signal input port that fundamental purpose of the present invention is to provide.
For reaching above-mentioned purpose, projector of the present invention control method is applied to be in a projector of a holding state, and just at work and a video signal source that is connected with this projector to carry out image projecting.Projector of the present invention control method may further comprise the steps: electrically connect a projector and a computer installation by arbitrary video signal cable; Detect after arbitrary video signal cable connects, whether to produce a definition signal at this projector's end; After detecting this definition signal, supply the power supply of this projector and light a lamp source of this projector, so that this projector enters duty from a signal input port that is connected with a certain video signal cable.By this, when the video signal cable that connects computer installation connects projector, can make projector's operate as normal, not need to open with manual type again the time of projector's power supply and waiting signal search, operate to make things convenient for the user to carry out its projecting function.
The invention provides a kind of projector control method, be applied to be in a projector of a holding state, video signal source in this projector's confession connection work is to carry out image projecting, this projector has at least one signal input port, and this projector's control method may further comprise the steps: electrically connect this projector and this video signal source by arbitrary video signal cable; Detect whether produce a definition signal at this projector's end; And after detecting this definition signal, supply the power supply of this projector and light a lamp source of this projector, so that this projector enters a duty.
The aforesaid projector of projector applications of the present invention control method, it is by the video signal source in the video signal cable electric connection work.Projector of the present invention comprises a lamp source, some lamp modules, a power module, at least one signal input port and a microprocessor.This lamp module is in order to light this lamp source; This power module is in order to supply this projector and this lamp source required power supply; At least one signal input port is in order to connect this video signal cable of different size; And this microprocessor is electrically connected at this power module, this ignition device and each signal input port, detect arbitrary signal input port by this microprocessor and whether produce a definition signal, be connected to this video signal source to find out which signal input port, and whether decision notifies this power module to supply the power supply of this projector, and notify this lamp module to light this lamp source, so that this projector enters duty from holding state.
The invention provides a kind of projector, this projector is by the video signal source in arbitrary video signal cable electric connection work, and this projector comprises a lamp source; Some lamp modules are in order to light this lamp source; One power module is in order to supply this projector and this lamp source required power supply; At least one signal input port is in order to connect this video signal cable; An and microprocessor, be electrically connected at this power module, this lamp module and this at least one signal input port, detecting respectively by this microprocessor, whether this signal input port produces a definition signal, to judge which this signal input port that has connected this video signal source is, and notify this power module to supply this projector and this lamp source required power supply, and notify this lamp module to light this lamp source, so that this projector enters a duty from a holding state.
Technical scheme of the present invention, when the video signal cable of the video signal source in the connection work connects projector, can make projector's operate as normal to carry out its projecting function, not need to open with manual type again the time of projector's power supply and waiting signal search, operate to make things convenient for the user.
Description of drawings
Fig. 1 is for using the synoptic diagram of projector of the present invention.
Fig. 2 is the main flow chart of projector of the present invention control method.
Fig. 3 is the synoptic diagram of another embodiment of application projector of the present invention.
Fig. 4 is applied to the main flow chart of another embodiment of aforementioned projector for projector of the present invention control method.
The primary clustering symbol description:
Projector 10,10a the 3rd signal input port 146
First signal input port, 142 signal output ports 31,31a
Secondary signal input port 144
Embodiment
For allowing the auditor can more understand technology contents of the present invention, be described as follows especially exemplified by going out preferred embodiment.
Below please refer to Fig. 1, Fig. 1 is for using the synoptic diagram of projector 10 of the present invention.As shown in Figure 1, projector 10 of the present invention is by the video signal source 30 in the video signal cable 20 electric connection work, and video signal source 30 utilizes video signal cable 20 that vision signal is sent to projector 10.In the present embodiment, video signal source 30 can be computer installation, and video signal cable 20 can be VGA line, DVI line, HDMI line or other have the signal transmssion line of similar functions, looks correspondence and is connected in the unlike signal output port 31 (port) of computer installation and selects for use.
Projector 10 of the present invention comprises a lamp source 11, some lamp modules 12, a power module 13, a signal input port 14, a microprocessor 15 and a switchgear 16.Point lamp module 12 is in order to light lamp source 11, and the power source conversion that power module 13 the is sent voltage that becomes to be fit to lamp source 11 and electric current are to lamp source 11, in one embodiment of this invention, point lamp module 12 can be an electric ballast (ballast) or starter, but also can use the assembly with similar functions to replace, the present invention is not as limit.Power module 13 provides each assembly required electric power in order to the power supply of supply projector 10.Signal input port 14 receives the vision signal from video signal source 30 in order to connect video signal cable 20.Microprocessor 15 is electrically connected at power module 13, some lamp module 12 and signal input port 14, microprocessor 15 under holding state still can receive the electric power that power module 13 is supplied when projector 10, to detect action at signal input port 14 immediately, judge whether the generation of a definition signal.When microprocessor 15 detects signal input port 14 and produces definition signals, can notify the power supply of power module 13 supply projectors 10, and a notice point lamp module 12, light lamp source 11, so that projector 10 enters duty from holding state.Switchgear 16 makes projector 10 switch between holding state, operating condition or off-position for the power supply that the user opens or closes projector 10 with manual mode.
Wherein pre-defined at pin (pin) at the signal output port 31 of the signal input part 14 of projector 10 and video signal source 30, because aforementioned signal output port 31 and signal input port 14 respectively have corresponding a plurality of pins, and except the minority pin has been set its video signal transmission function, other pins only are used for ground connection or are not used, and therefore can select this type of pin and be defined.The pin of corresponding unlike signal port according to institute's transmission video signal type difference, for example VGA can set and utilize pin 5 (pin5), and DVI can set and utilize pin 15 (pin15), and HDMI can set and utilize pin 19 (pin19).When video signal cable 20 connects the video signal source 30 in the work of going up and be in projector 10 under the holding state, video signal source 30 transmits electric signal by the pin of definition of signal output port 31, the correspondence of delivering to the signal input port 14 of projector 10 through video signal cable 20 has defined pin, therefore whether the pin of definition by microprocessor 15 detection signal input ports 14 produces definition signal as expected, can learn the whether video signal source 30 in the connection work of projector 10, so that make projector 10 enter duty.Aforementioned detected definition signal refers to be selected from and detects arbitrary in coded signal, frequency signal and the synchronizing signal that the electric current that defines pin changes, voltage difference changes, transmitted, but definition signal also can be the signal of other types, and the present invention is not as limit.
Be changed to example with voltage difference, suppose that projector 10 is not connected to before the video signal source 30 by video signal cable 20 as yet, the pin of definition of microprocessor 15 detection signal input ports 14 can record an initial potential, and initial potential can be noble potential (high) or electronegative potential (low).After the video signal cable 20 of the video signal source 30 in the connection work connects signal input port 14, making microprocessor 15 detect the current potential that defines pin by design of the present invention changes, for example uprise current potential from noble potential step-down current potential or from electronegative potential, this moment, microprocessor 15 can be judged the video signal source 30 in the connection work according to this, can notify the associated component start so that projector 10 enters duty.
Please refer to Fig. 2, Fig. 2 is the main flow chart of projector of the present invention control method.Be noted that, though below be that example illustrates projector of the present invention control method with projector shown in Figure 1 10, but to be applicable to that projector 10 exceeds, any other does not have also applicable projector of the present invention of the projector control method of similar framework in the present invention.As shown in Figure 2, projector of the present invention control method comprises that step S1 is to step S5.Below will describe each step of projector of the present invention control method in detail.
Step S1: projector 10 electrically connects projector 10 and video signal source 30 by video signal cable 20 under holding state.As shown in Figure 1, projector of the present invention control method is applied to be in the projector 10 of holding state, and after projector 10 connected with the mains by power lead (figure does not show), projector 10 promptly entered holding state from off-position.This moment, the user utilized an end of video signal cable 20 to connect the signal output port 31 of video signal source 30, when the other end of video signal cable 20 is connected with the signal input port 14 of projector 10, promptly constitute the electric connection path between video signal source 30 and the projector 10, in order to electric signal such as transmission vision signals.
Step S2: by the microprocessor 15 detection signal input ports 14 of projector 10.After projector 10 entered holding state, this moment, power module 13 can provide part electric power to microprocessor 15 earlier, made the microprocessor 15 detection signal input port 14 of having the ability, and judged that it has defined the state of pin.
Step S3: detect whether produce definition signal at projector's 10 ends.As shown in Figure 1, when video signal cable 20 connections were in the signal output port 31 of the video signal source 30 in the work, video signal source 30 can continue by electric signal such as video signal cable 20 transmission video signals; And be under the holding state pin of the definition state of the instant detection signal input port 14 of microprocessor 15 meetings in projector 10.Therefore, after video signal cable 20 connects the signal input port 14 of going up projector 10, by the aforementioned electric signal that is sent to projector 10 by video signal cable 20 at the pinout design and the cooperation video signal source 30 of signal input port 14, can make the pin of definition of signal input port 14 produce a definition signal, for example aforesaid electric current changes, voltage difference changes or specific coded signal etc.This moment, microprocessor 15 can detect the appearance of definition signal, and carried out follow-up alignment processing action.
Step S4: after detecting definition signal, trigger power module 13, begin to supply the power supply of projector 10 and power and give a lamp module 12,, make projector 10 enter duty to light the lamp source 11 of projector 10.As shown in Figure 1, after detecting definition signal and occur by step S3, microprocessor 15 promptly sends instruction, to trigger power module 13 and some lamp module 12, power module 13 is being received instruction and promptly supplying the power supply of projector 10 after being triggered, and power supply is to a some lamp module 12, to light lamp source 11, make projector 10 enter duty, carry out projecting function from holding state.
Step S5: locking produces the signal input port 14 of definition signal and handles at the vision signal of being imported, to project video pictures.As shown in Figure 1, after projector's 10 startups enter duty, be the signal input port 14 that lockable produces definition signal, will utilize video signal cable 20 transmission, to import projectors 10 by signal input port 14 and send from the vision signal of video signal source 30.This vision signal carries out just can projecting its video pictures by lamp source 11 after coherent video is handled through projector 10, carries out normal projection.
By this, when the video signal cable 20 of the video signal source 30 in the connection work connects when going up projector 10, can make the projector 10 under the holding state enter general normal duty, needn't open projector's 10 power supplys with the switchgear 16 of telepilot or projector 10 more in addition, reach the effect that makes things convenient for the user to operate.
Please refer to Fig. 3, Fig. 3 is the synoptic diagram of another embodiment of the application 10a of projector of the present invention.Present embodiment is the alternate embodiment of previous embodiment, and as shown in Figure 3, the 10a of projector of the present invention comprises a plurality of signal input port 14a, in order to the vision signal that receives different size or connect different video signal source 30a.In the present embodiment, a plurality of signal input port 14a comprise one first signal input port 142, a secondary signal input port 144 and one the 3rd signal input port 146, and wherein first, second and the 3rd signal input port 142,144,146 are applicable to the connection of VGA, DVI, HDMI signal respectively.The signal output port 31a specification of the visual video signal source 30a of user or output demand, select for use suitable video signal cable 20a (for example corresponding respectively transmission VGA, DVI of video signal cable 22,24,26, HDMI signal) correspondence to be connected in appropriate signal input port 14a, for the video pictures of projection different size, but the quantity of aforementioned a plurality of signal input port 14a and support output specification are not exceeded with present embodiment.
Fig. 4 is applied to the main flow chart of another embodiment of the aforementioned 10a of projector for projector of the present invention control method.Be noted that, though below be that example illustrates projector of the present invention control method with the 10a of projector shown in Figure 3, the present invention is not also to be applicable to that the 10a of projector exceeds.As shown in Figure 4, projector of the present invention control method comprises step S1 ' to step S5 ', and wherein step S1 ', S2 ' and S3 ' compare different with the corresponding step of earlier figures 2 flow processs.Below will be described in detail among Fig. 4 the step of difference to some extent with Fig. 2.
Step S1 ': the 10a of projector electrically connects 10a of projector and video signal source 30a by arbitrary video signal cable 20a under holding state.As shown in Figure 3, because having, the 10a of projector support a plurality of signal input port 14a of different size interface (to comprise first signal input port 142 that is applicable to the VGA signal, the 3rd signal input port 146 that is applicable to the secondary signal input port 144 of DVI signal and is applicable to the HDMI signal), therefore the user can select arbitrary video signal cable 22 of corresponding specification for use, 24 or 26, with signal output port 31a and the signal input port 14a corresponding that connects video signal source 30a, to constitute the electric connection path between video signal source 30a and the 10a of projector with the 10a of projector.For instance, when selecting the video signal cable 26 of HDMI specification for use, then video signal cable 26 correspondences are connected to the 3rd signal input port 146 of supporting the HDMI interface.
Step S2 ': the microprocessor 15 by the 10a of projector detects a signal input port 14a.After the 10a of projector entered holding state, because the 10a of projector has a plurality of signal input port 14a, so microprocessor 15 can detect at a certain signal input port 14a earlier, judges that it has defined the state of pin.
Step S3 ': detect whether produce definition signal at the 10a of projector end.Wherein step S3 ' comprises step S31 ' and S32 ' again.Step S31 ': whether connect the back and produce definition signal in video signal cable 20a; Step S32 ': switch to another signal input port 14a.As shown in Figure 3, at the situation of a plurality of signal input port 14a, microprocessor 15 can detect in regular turn at each signal input port 14a.When supposing the signal input port 142 as signal output port 31a that utilizes video signal cable 22 to connect to be in the video signal source 30a in the work and the 10a of projector, microprocessor 15 can detect the definition signal that defines pin and produced of first signal input port 142, and just can carry out subsequent step S4 ' this moment; Hypothesis is when utilizing video signal cable 24 to connect the secondary signal input port 144 of video signal source 30a and the 10a of projector again, microprocessor 15 detects first signal input port 142 earlier and judges when no definition signal produces, just can proceed step S32 ' and switch to other signal input ports 14a, for example secondary signal input port 144 or the 3rd signal input port 146, and get back to step S2 ' and detect action again, find the generation of definition signal up to detecting secondary signal input port 144, just stop detection action other signal input ports 14a.So analogize, in the present embodiment, microprocessor 15 can continue to detect at each signal input port 14a, when detecting arbitrary signal input port 14a that has connected video signal cable 20a and produce definition signal, just stops the detection action to other signal input ports 14a.Thereafter step S4 ' and S5 ' do not repeat to give unnecessary details at this because of identical with process step S4, the S5 of earlier figures 2.
To sum up institute is old, and no matter the present invention everywhere all shows it totally different in the feature of known technology with regard to purpose, means and effect, is a quantum jump, earnestly asks the auditor to perceive, and grants quasi patent early, makes Jiahui society, and the true feeling moral just.Only must notice that the foregoing description only is exemplary illustration principle of the present invention and effect thereof, but not is used to limit the scope of the invention.Any those skilled in the art all can be under know-why of the present invention and spirit, and embodiment is made an amendment and changes.The scope of the present invention should be as described in the scope of appending claims.
Claims (11)
1. projector's control method, be applied to be in a projector of a holding state, to carry out image projecting, this projector has at least one signal input port for the video signal source in the connection work in this projector, and this projector's control method may further comprise the steps:
Electrically connect this projector and this video signal source by arbitrary video signal cable;
Detect whether produce a definition signal at this projector's end; And
After detecting this definition signal, supply the power supply of this projector and light a lamp source of this projector, so that this projector enters a duty.
2. projector as claimed in claim 1 control method, wherein this video signal cable correspondence is connected in this signal input port of this projector, by the pin of definition that detects this signal input port to judge whether to produce this definition signal.
3. projector as claimed in claim 2 control method, arbitrary in a coded signal, a frequency signal and the synchronous signal that wherein this definition signal electric current of referring to define pin changes, a voltage difference changes, transmitted.
4. projector as claimed in claim 2 control method, wherein the microprocessor by this projector detects this definition signal.
5. projector as claimed in claim 4 control method wherein after detecting this definition signal, is notified the body that a power module supplies this projector and the required power supply in this lamp source by this microprocessor, and is notified some lamp modules to light this lamp source.
6. projector as claimed in claim 5 control method, wherein this microprocessor can lock this signal input port that produces this definition signal, and handle at the vision signal of importing by this signal input port, throw this vision signal picture for this projector.
7. projector as claimed in claim 2 control method, wherein when this at least one signal input port when being a plurality of, if do not detect this definition signal, then continue to detect other these signal input ports and whether be connected to this video signal source by other these video signal cables at a certain this signal input port; When detecting arbitrary this signal input port that has connected this video signal cable and produce this definition signal, just stop detection action to other these signal input ports.
8. projector, this projector is by the video signal source in arbitrary video signal cable electric connection work, and this projector comprises:
One lamp source;
Some lamp modules are in order to light this lamp source;
One power module is in order to supply this projector and this lamp source required power supply;
At least one signal input port is in order to connect this video signal cable; And
One microprocessor, be electrically connected at this power module, this lamp module and this at least one signal input port, detecting respectively by this microprocessor, whether this signal input port produces a definition signal, to judge which this signal input port that has connected this video signal source is, and notify this power module to supply this projector and this lamp source required power supply, and notify this lamp module to light this lamp source, so that this projector enters a duty from a holding state.
9. the pin of definition of this signal input port respectively wherein detects to judge whether to produce this definition signal by this microprocessor in projector as claimed in claim 8.
10. projector as claimed in claim 9, arbitrary in a coded signal, a frequency signal and the synchronous signal that wherein this definition signal electric current of referring to define pin changes, a voltage difference changes, transmitted.
11. projector as claimed in claim 9, wherein when this at least one signal input port when being a plurality of, if this microprocessor does not detect this definition signal at a certain this signal input port, then continue to detect other these signal input ports and whether be connected to this video signal source by other these video signal cables; When this microprocessor detects arbitrary this signal input port that has connected this video signal cable and produces this definition signal, just stop detection to this definition signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101805628A CN102043372A (en) | 2009-10-20 | 2009-10-20 | Projector and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101805628A CN102043372A (en) | 2009-10-20 | 2009-10-20 | Projector and control method thereof |
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| CN102043372A true CN102043372A (en) | 2011-05-04 |
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| CN2009101805628A Pending CN102043372A (en) | 2009-10-20 | 2009-10-20 | Projector and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363401A (en) * | 2014-11-14 | 2015-02-18 | 无锡视美乐激光显示科技有限公司 | Projection equipment and control method thereof |
| CN110636239A (en) * | 2018-06-21 | 2019-12-31 | 卡西欧计算机株式会社 | Display device, display control method, and readable storage medium |
| CN112437281A (en) * | 2019-08-26 | 2021-03-02 | 中强光电股份有限公司 | Projection device and projection signal searching method |
-
2009
- 2009-10-20 CN CN2009101805628A patent/CN102043372A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363401A (en) * | 2014-11-14 | 2015-02-18 | 无锡视美乐激光显示科技有限公司 | Projection equipment and control method thereof |
| CN110636239A (en) * | 2018-06-21 | 2019-12-31 | 卡西欧计算机株式会社 | Display device, display control method, and readable storage medium |
| CN110636239B (en) * | 2018-06-21 | 2022-11-18 | 卡西欧计算机株式会社 | Display device, display control method, and readable storage medium |
| CN112437281A (en) * | 2019-08-26 | 2021-03-02 | 中强光电股份有限公司 | Projection device and projection signal searching method |
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Application publication date: 20110504 |