CN102420949A - Method and device for automatically identifying two varieties of signals at same port of television - Google Patents
Method and device for automatically identifying two varieties of signals at same port of television Download PDFInfo
- Publication number
- CN102420949A CN102420949A CN2011102682406A CN201110268240A CN102420949A CN 102420949 A CN102420949 A CN 102420949A CN 2011102682406 A CN2011102682406 A CN 2011102682406A CN 201110268240 A CN201110268240 A CN 201110268240A CN 102420949 A CN102420949 A CN 102420949A
- Authority
- CN
- China
- Prior art keywords
- signal
- circuit
- television set
- input
- burst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a method and device for automatically identifying two varieties of signals at a same port of a television. The method comprises the steps of: connecting an input signal detection circuit between an input port shared by AV (Audio/Video) video signals and high-definition video signal Y signals which are preset in the television and a main processor of the television; processing input signals of the shared input port by utilizing the input signal detection circuit; and subjecting to frequency separation and time separation and judging the output of color synchronization signals, notifying a judged result to the main processor of the television, and switching the input signals onto a corresponding channel, so as to realize automatic identification of two varieties of signals at the same port. On one hand, the cost can be saved on the basis that functions of the television are not impaired, the number of ports is reduced, and the space for panel layout is saved; on the other hand, the AV video signals and the high-definition video signals can be automatically identified without the need of manual setting, thereby great use convenience is brought for people.
Description
Technical field
The present invention relates to TV technology, particularly relate to two kinds of signal automatic-identifying methods of the same port of a kind of television set and device thereof.
Background technology
Television set is the household electrical appliance of being used always in people's daily life; People both can understand topical news through TV, can watch programs such as movie and television play, music, Chinese folk art forms, physical culture again, and TV has greatly enriched people's life; We can say, in people's life, be unable to do without TV.Along with the fast development of TV tech, TV signal is transformed by simulation-to-digital, and high definition television is progressively promoted.In the high definition television machine, generally all be provided with high-definition video signal interface and AV video signal interface.The AV video signal transmission is to adopt the composite video transmission means, i.e. transmission be the vision signal that a kind of brightness/chroma mixes, employing be single signal wire transmits, its video interface only needs one; And the high-definition video signal transmission course is component video signal (YPbPr/YCbCr) transmission means that adopts bright/look to separate; I.e. transmission has three road signals, and one the tunnel is brightness signal Y, and two the tunnel is color difference signal Pb/Cb, Pr/Cr; For this reason, its HD video interface needs three; If on a television set, the high-definition video signal interface should be arranged; The AV video signal interface is arranged again; 4 video interfaces then need be set altogether, and the mode of this independent separately signalization interface has caused the television set input end interface various; Take more plan position approach on the one hand, caused Interface design layout difficulty; Also be not easy to the user on the other hand and manipulate, too much interface causes user's grafting mistake easily; But also can improve the cost of product design and making.For this reason; Publication number is that the patent formerly of CN1816103 has proposed a kind of high-definition signal interface and the shared method of AV video signal interface; Be to be that Y-signal interface and AV video signal interface are designed to same with the luminance signal in the high-definition video signal; Like this, just can cut original AV video signal interface, make the video signal interface of television set lack one than original.But this method will be utilized control of remote controller, realizes the selection of signal source, thereby has brought inconvenience to the user.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; Two kinds of signal automatic-identifying methods of the same port of a kind of television set and device thereof are provided; Can guarantee that on the one hand television set saves cost on the basis of not sacrificing function, reduce port number, save the cloth board space; On the other hand, can automatically identify AV vision signal or high-definition video signal, and need not carry out artificial setting, thereby be very easy to people's use.
The technical solution adopted for the present invention to solve the technical problems is: two kinds of signal automatic-identifying methods of the same port of a kind of television set comprise the steps:
A. to the acquisition step of incoming video signal; This step is to be connected between the primary processor of shared input mouth and television set of AV vision signal that television set presets and high-definition video signal Y-signal with a circuit for checking input signals, from said shared input mouth, gathers incoming video signal by this circuit for checking input signals;
B. incoming video signal is carried out step bright, the chrominance signal separating treatment; This step is to adopt the method for frequency separation that said incoming video signal is handled with the frequency separation circuit in the circuit for checking input signals; Luminance signal in the said incoming video signal is separated with carrier chrominance signal, and from isolated two tunnel output signals, extract the vision signal of carrier chrominance signal output;
C. the vision signal of carrier chrominance signal output is carried out the step of chrominance signal, burst signal separating treatment; This step is with the method that split circuit employing time time in the circuit for checking input signals separates the vision signal of said carrier chrominance signal output to be handled; Chrominance signal in the vision signal of said carrier chrominance signal output is separated with burst signal, and from isolated two tunnel output signals, extract the vision signal of burst signal output;
D. the step that the vision signal of colour burst signal output is judged; This step is with the signal judging circuit in the circuit for checking input signals vision signal of said colour burst signal output to be judged; When being judged as colour burst signal; Judge that said incoming video signal is the AV vision signal; When being judged as when not having colour burst signal; Judge that said incoming video signal is a high-definition video signal, and notify the primary processor of television set judged result;
E. signal processing and step display; When the judged result of signal judging circuit is when burst signal is arranged; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the AV signal processing channel, and the AV signal is presented on the display terminal of television set; When the judged result of signal judging circuit is when not having burst signal; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the high-definition signal treatment channel, and high-definition signal is presented on the display terminal of television set.
Two kinds of signal automatic identification equipments of the same port of a kind of television set comprise:
The AV vision signal of one television set and the shared input mouth of high-definition video signal Y-signal are used for inserting AV vision signal or high-definition video signal Y-signal;
One circuit for checking input signals is used for detecting, processing signals, and the output result;
The primary processor of one television set is used for carrying out the task of switching channel and the display terminal display image of driving television;
The display terminal of one television set is used for display image;
Circuit for checking input signals is connected between the primary processor of shared input mouth and television set of AV vision signal and high-definition video signal Y-signal of television set, and the output of the primary processor of television set is connected to the display terminal of television set;
Circuit for checking input signals comprises frequency separation circuit, time split circuit and signal judging circuit; The input of frequency separation circuit is connected to the AV vision signal of television set and the shared input mouth of high-definition video signal Y-signal; This frequency separation circuit adopts the method for frequency separation that luminance signal in the signal and carrier chrominance signal are carried out separating treatment to the vision signal of said shared input mouth input, and exports one tunnel luminance signal and one tunnel carrier chrominance signal; The input of time split circuit is connected to the carrier chrominance signal output in the frequency separation circuit; The time split circuit carries out separating treatment to the method that the carrier chrominance signal employing time of input separates to chrominance signal in the carrier chrominance signal and burst signal, and exports one road chrominance signal and one tunnel burst signal; The input of signal judging circuit is connected to the burst signal output of time split circuit; Whether containing burst signal in the signal of signal judging circuit to input judges; When being judged as burst signal; Judge that said input signal is the AV vision signal,, judge that said input signal is a high-definition video signal when being judged as when not having burst signal; The output of signal judging circuit is connected to the primary processor of television set, and the primary processor of circuit for checking input signals notice television set is carried out corresponding operation task, and input signal is switched on the corresponding passage.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof; Be with AV vision signal and the shared input port of high-definition video signal Y-signal; Input detecting circuit is discerned according to the otherness between AV vision signal, the Y-signal through input signal is detected automatically, then recognition result is fed back to primary processor; Primary processor switches to corresponding passage through routine processes with input signal; Be presented at the terminal at last, the user can understand current input signal through display terminal, has so just realized that the automatic identification of same port, unlike signal input shows.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof, whole hardware system are on the basis of existing TV hardware system, to increase circuit for checking input signals to constitute.Circuit for checking input signals is series between the primary processor of signal input port and television set; According to the difference of each composition of vision signal, adopt the various signals separation method to carry out Signal Separation, in the signal after the separation; When detecting burst signal; Differentiating this signal is the AV signal, when not detecting burst signal, differentiates to be high-definition video signal YPbPr signal, at last testing result is fed back to the primary processor of television set.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof; Wherein, Frequency separation is to adopt the frequency separation circuit to accomplish, and the effect of frequency separation circuit is to separate luminance signal with carrier chrominance signal, and the frequency separation circuit comprises carrier chrominance signal trap circuit and bandwidth-limited circuit; The trap circuit effect is an elimination carrier chrominance signal from vision signal, and the effect of bandwidth-limited circuit is from vision signal, to select carrier chrominance signal; After vision signal is respectively through trap circuit and bandwidth-limited circuit,,, realized that bright, chrominance signal separates from bandwidth-limited circuit output carrier chrominance signal from trap circuit output luminance signal.The time separation is that employing time split circuit is accomplished, and the asynchronism(-nization) that utilizes chrominance signal and burst signal to occur through burst separator, is adopted the time separation method, can carrier chrominance signal further be isolated chrominance signal and burst signal.The time split circuit is actually a gate circuit, and it has two doors, is connected on respectively in decoder chrominance signal passage and the colour sync circuit, is called colo(u)r gate, burst blanking circuit respectively; Their operation principle is: gate pulse is selected line synchronizing signal for use, through suitable time-delay, makes it just in time when burst signal occurs, open gate circuit in time, lets burst signal pass through; Other times, this circuit ends; The burst blanking circuit is just in time opposite with colo(u)r gate, also is to utilize gate pulse to be added to this circuit, and when burst signal occurred, circuit was closed; Other times are conductings, have so just realized separating of burst signal and chrominance signal.
The invention has the beneficial effects as follows,, utilize this circuit for checking input signals that the input signal of said shared input mouth is handled owing to be connected a circuit for checking input signals between the primary processor of the shared input mouth that has adopted the AV vision signal that presets at television set and high-definition video signal Y-signal and television set; From vision signal, isolate luminance signal and carrier chrominance signal through frequency separation; Separate through the time again and from carrier chrominance signal, isolate chrominance signal and burst signal, and differentiate, when this road output has burst signal through this road output to burst signal; Judge that said input signal is the AV vision signal; When this road output does not have burst signal, judge that said input signal is a high-definition video signal, and notify the primary processor of television set this result of determination; Carry out corresponding operation task by the primary processor of television set; Input signal is switched on the corresponding passage, thereby realized that two kinds of signals of same port discern automatically, can guarantee that on the one hand television set saves cost on the basis of not sacrificing function; Reduce port number, save the cloth board space; On the other hand, can automatically identify AV vision signal or high-definition video signal, and need not carry out artificial setting, thereby be very easy to people's use.
Below in conjunction with accompanying drawing and embodiment the present invention is done further explain; But two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof are not limited to embodiment.
Description of drawings
Fig. 1 is the theory diagram of apparatus of the present invention;
Fig. 2 is the processing procedure sketch map of the inventive method;
Fig. 3 is the process chart of input part of the present invention;
Fig. 4 is the process chart of primary processor part of the present invention.
Embodiment
Embodiment joins shown in Figure 2ly, and two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention comprise the steps:
A. to the acquisition step of incoming video signal; This step is to be connected between the primary processor of shared input mouth and television set of AV vision signal that television set presets and high-definition video signal Y-signal with a circuit for checking input signals, from said shared input mouth, gathers incoming video signal by this circuit for checking input signals;
B. incoming video signal is carried out step bright, the chrominance signal separating treatment; This step is to adopt the method for frequency separation that said incoming video signal is handled with the frequency separation circuit in the circuit for checking input signals; Luminance signal in the said incoming video signal is separated with carrier chrominance signal, and from isolated two tunnel output signals, extract the vision signal of carrier chrominance signal output; As shown in Figure 2, through after the frequency separation, one tunnel output luminance signal, synchronizing signal, another road output carrier chrominance signal is got a road of carrier chrominance signal output;
C. the vision signal of carrier chrominance signal output is carried out the step of chrominance signal, burst signal separating treatment; This step is with the method that split circuit employing time time in the circuit for checking input signals separates the vision signal of said carrier chrominance signal output to be handled; Chrominance signal in the vision signal of said carrier chrominance signal output is separated with burst signal, and from isolated two tunnel output signals, extract the vision signal of burst signal output; As shown in Figure 2, after the elapsed time separation, one tunnel output chrominance signal, another road output burst signal is got a road of burst signal output;
D. the step that the vision signal of colour burst signal output is judged; This step is with the signal judging circuit in the circuit for checking input signals vision signal of said colour burst signal output to be judged; When being judged as colour burst signal; Judge that said incoming video signal is the AV vision signal; When being judged as when not having colour burst signal; Judge that said incoming video signal is a high-definition video signal, and notify the primary processor of television set judged result;
E. signal processing and step display; When the judged result of signal judging circuit is when burst signal is arranged; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the AV signal processing channel, and the AV signal is presented on the display terminal of television set; When the judged result of signal judging circuit is when not having burst signal; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the high-definition signal treatment channel, and high-definition signal is presented on the display terminal of television set.
Join shown in Figure 1ly, two kinds of signal automatic identification equipments of the same port of a kind of television set of the present invention comprise:
The AV vision signal of one television set and the shared input mouth 1 of high-definition video signal Y-signal are used for inserting AV vision signal or high-definition video signal Y-signal;
One circuit for checking input signals 2 is used for detecting, processing signals, and the output result;
The primary processor 3 of one television set is used for carrying out the task of switching channel and the display terminal display image of driving television;
The display terminal 4 of one television set is used for display image;
Circuit for checking input signals 2 is connected between the primary processor 3 of shared input mouth 1 and television set of AV vision signal and high-definition video signal Y-signal of television set, and the output of the primary processor 3 of television set is connected to the display terminal 4 of television set;
Circuit for checking input signals 2 comprises frequency separation circuit 21, time split circuit 22 and signal judging circuit 23; The input of frequency separation circuit 21 is connected to the AV vision signal of television set and the shared input mouth 1 of high-definition video signal Y-signal; The vision signal of 21 pairs of said shared input mouth inputs of this frequency separation circuit adopts the method for frequency separation that luminance signal in the signal and carrier chrominance signal are carried out separating treatment, and exports one tunnel luminance signal and one tunnel carrier chrominance signal; The input of time split circuit 22 is connected to the carrier chrominance signal output in the frequency separation circuit 21; The method that the carrier chrominance signal employing time of 22 pairs of inputs of time split circuit separates is carried out separating treatment to chrominance signal in the carrier chrominance signal and burst signal, and exports one road chrominance signal and one tunnel burst signal; The input of signal judging circuit 23 is connected to the burst signal output of time split circuit 22; Whether containing burst signal in the signal of 23 pairs of inputs of signal judging circuit judges; When being judged as burst signal; Judge that said input signal is the AV vision signal,, judge that said input signal is a high-definition video signal when being judged as when not having burst signal; The output of signal judging circuit 23 is connected to the primary processor of television set, and the primary processor 3 of circuit for checking input signals 2 notice television sets is carried out corresponding operation task, and input signal is switched on the corresponding passage.
Fig. 3 is the handling process of input part of the present invention, is accomplished by circuit for checking input signals 2; Fig. 4 is the handling process of primary processor part of the present invention, is accomplished by the primary processor 3 of television set.
Usually, the signal component that comprises of AV vision signal is: luminance signal, composite synchronizing signal, chrominance signal, burst signal; The signal component that the high-definition video signal Y-signal comprises is: luminance signal and composite synchronizing signal; Compare two kinds of signal components that signal comprised, can find two kinds of signal differences: the AV vision signal contains burst signal composition and color signal component, and Y-signal does not comprise this two kinds of signal components; Therefore, can carry out input identification according to this otherness; Compare with chrominance signal, burst signal has more characteristics: burst signal is a string colour subcarrier, appears at the line scanning flyback in time, is on the horizontal blanking back porch; Therefore, can distinguish AV vision signal or Y-signal according to whether containing burst signal.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof; Be with AV vision signal and the shared input port of high-definition video signal Y-signal; Input detecting circuit is discerned according to the otherness between AV vision signal, the Y-signal through input signal is detected automatically, then recognition result is fed back to primary processor; Primary processor switches to corresponding passage through routine processes with input signal; Be presented at the terminal at last, the user can understand current input signal through display terminal, has so just realized that the automatic identification of same port, unlike signal input shows.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof, whole hardware system are on the basis of existing TV hardware system, to increase circuit for checking input signals to constitute.Circuit for checking input signals is series between the primary processor of signal input port and television set; According to the difference of each composition of vision signal, adopt the various signals separation method to carry out Signal Separation, in the signal after the separation; When detecting burst signal; Differentiating this signal is the AV signal, when not detecting burst signal, differentiates to be high-definition video signal YPbPr signal, at last testing result is fed back to the primary processor of television set.
Two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof; Wherein, Frequency separation is to adopt the frequency separation circuit to accomplish, and the effect of frequency separation circuit is to separate luminance signal with carrier chrominance signal, and the frequency separation circuit comprises carrier chrominance signal trap circuit and bandwidth-limited circuit; The trap circuit effect is an elimination carrier chrominance signal from vision signal, and the effect of bandwidth-limited circuit is from vision signal, to select carrier chrominance signal; After vision signal is respectively through trap circuit and bandwidth-limited circuit,,, realized that bright, chrominance signal separates from bandwidth-limited circuit output carrier chrominance signal from trap circuit output luminance signal.The time separation is that employing time split circuit is accomplished, and the asynchronism(-nization) that utilizes chrominance signal and burst signal to occur through burst separator, is adopted the time separation method, can carrier chrominance signal further be isolated chrominance signal and burst signal.The time split circuit is actually a gate circuit, and it has two doors, is connected on respectively in decoder chrominance signal passage and the colour sync circuit, is called colo(u)r gate, burst blanking circuit respectively; Their operation principle is: gate pulse is selected line synchronizing signal for use, through suitable time-delay, makes it just in time when burst signal occurs, open gate circuit in time, lets burst signal pass through; Other times, this circuit ends; The burst blanking circuit is just in time opposite with colo(u)r gate, also is to utilize gate pulse to be added to this circuit, and when burst signal occurred, circuit was closed; Other times are conductings, have so just realized separating of burst signal and chrominance signal.
The foregoing description only is used for further specifying two kinds of signal automatic-identifying methods of the same port of a kind of television set of the present invention and device thereof; But the present invention is not limited to embodiment; Every foundation technical spirit of the present invention all falls in the protection range of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. two kinds of signal automatic-identifying methods of the same port of television set is characterized in that: comprise the steps:
A. to the acquisition step of incoming video signal; This step is to be connected between the primary processor of shared input mouth and television set of AV vision signal that television set presets and high-definition video signal Y-signal with a circuit for checking input signals, from said shared input mouth, gathers incoming video signal by this circuit for checking input signals;
B. incoming video signal is carried out step bright, the chrominance signal separating treatment; This step is to adopt the method for frequency separation that said incoming video signal is handled with the frequency separation circuit in the circuit for checking input signals; Luminance signal in the said incoming video signal is separated with carrier chrominance signal, and from isolated two tunnel output signals, extract the vision signal of carrier chrominance signal output;
C. the vision signal of carrier chrominance signal output is carried out the step of chrominance signal, burst signal separating treatment; This step is with the method that split circuit employing time time in the circuit for checking input signals separates the vision signal of said carrier chrominance signal output to be handled; Chrominance signal in the vision signal of said carrier chrominance signal output is separated with burst signal, and from isolated two tunnel output signals, extract the vision signal of burst signal output;
D. the step that the vision signal of colour burst signal output is judged; This step is with the signal judging circuit in the circuit for checking input signals vision signal of said colour burst signal output to be judged; When being judged as colour burst signal; Judge that said incoming video signal is the AV vision signal; When being judged as when not having colour burst signal; Judge that said incoming video signal is a high-definition video signal, and notify the primary processor of television set judged result;
E. signal processing and step display; When the judged result of signal judging circuit is when burst signal is arranged; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the AV signal processing channel, and the AV signal is presented on the display terminal of television set; When the judged result of signal judging circuit is when not having burst signal; The primary processor of circuit for checking input signals notice television set is carried out corresponding operation task; Primary processor switches to input signal on the high-definition signal treatment channel, and high-definition signal is presented on the display terminal of television set.
2. two kinds of signal automatic identification equipments of the same port of television set is characterized in that: comprising:
The AV vision signal of one television set and the shared input mouth of high-definition video signal Y-signal are used for inserting AV vision signal or high-definition video signal Y-signal;
One circuit for checking input signals is used for detecting, processing signals, and the output result;
The primary processor of one television set is used for carrying out the task of switching channel and the display terminal display image of driving television;
The display terminal of one television set is used for display image;
Circuit for checking input signals is connected between the primary processor of shared input mouth and television set of AV vision signal and high-definition video signal Y-signal of television set, and the output of the primary processor of television set is connected to the display terminal of television set;
Circuit for checking input signals comprises frequency separation circuit, time split circuit and signal judging circuit; The input of frequency separation circuit is connected to the AV vision signal of television set and the shared input mouth of high-definition video signal Y-signal; This frequency separation circuit adopts the method for frequency separation that luminance signal in the signal and carrier chrominance signal are carried out separating treatment to the vision signal of said shared input mouth input, and exports one tunnel luminance signal and one tunnel carrier chrominance signal; The input of time split circuit is connected to the carrier chrominance signal output in the frequency separation circuit; The time split circuit carries out separating treatment to the method that the carrier chrominance signal employing time of input separates to chrominance signal in the carrier chrominance signal and burst signal, and exports one road chrominance signal and one tunnel burst signal; The input of signal judging circuit is connected to the burst signal output of time split circuit; Whether containing burst signal in the signal of signal judging circuit to input judges; When being judged as burst signal; Judge that said input signal is the AV vision signal,, judge that said input signal is a high-definition video signal when being judged as when not having burst signal; The output of signal judging circuit is connected to the primary processor of television set, and the primary processor of circuit for checking input signals notice television set is carried out corresponding operation task, and input signal is switched on the corresponding passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102682406A CN102420949A (en) | 2011-09-09 | 2011-09-09 | Method and device for automatically identifying two varieties of signals at same port of television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102682406A CN102420949A (en) | 2011-09-09 | 2011-09-09 | Method and device for automatically identifying two varieties of signals at same port of television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102420949A true CN102420949A (en) | 2012-04-18 |
Family
ID=45945164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102682406A Pending CN102420949A (en) | 2011-09-09 | 2011-09-09 | Method and device for automatically identifying two varieties of signals at same port of television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102420949A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308665A (en) * | 2019-06-25 | 2019-10-08 | 珠海格力电器股份有限公司 | A kind of control method of the electric appliance of more logic workings, controller, electric appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276947A (en) * | 1997-10-22 | 2000-12-13 | 松下电器产业株式会社 | Color-difference signal conversion circuit |
| CN1602071A (en) * | 2003-09-25 | 2005-03-30 | 四川长虹电器股份有限公司 | Method of auto recognizing high resolution TV and personal computer signal format |
| KR20060022854A (en) * | 2004-09-08 | 2006-03-13 | 주식회사 대우일렉트로닉스 | Method for revising color when input color burst of nonstandard method |
| CN1816103A (en) * | 2005-02-06 | 2006-08-09 | 厦门华侨电子企业有限公司 | Method for sharing high-clarity signal interface and AV video-frequency signal interface |
| CN202206458U (en) * | 2011-09-09 | 2012-04-25 | 厦门华侨电子股份有限公司 | Automatic identification device for two types of signals at one port of television |
-
2011
- 2011-09-09 CN CN2011102682406A patent/CN102420949A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276947A (en) * | 1997-10-22 | 2000-12-13 | 松下电器产业株式会社 | Color-difference signal conversion circuit |
| CN1602071A (en) * | 2003-09-25 | 2005-03-30 | 四川长虹电器股份有限公司 | Method of auto recognizing high resolution TV and personal computer signal format |
| KR20060022854A (en) * | 2004-09-08 | 2006-03-13 | 주식회사 대우일렉트로닉스 | Method for revising color when input color burst of nonstandard method |
| CN1816103A (en) * | 2005-02-06 | 2006-08-09 | 厦门华侨电子企业有限公司 | Method for sharing high-clarity signal interface and AV video-frequency signal interface |
| CN202206458U (en) * | 2011-09-09 | 2012-04-25 | 厦门华侨电子股份有限公司 | Automatic identification device for two types of signals at one port of television |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308665A (en) * | 2019-06-25 | 2019-10-08 | 珠海格力电器股份有限公司 | A kind of control method of the electric appliance of more logic workings, controller, electric appliance |
| CN110308665B (en) * | 2019-06-25 | 2024-04-09 | 珠海格力电器股份有限公司 | Control method of multi-logic working electric appliance, controller and electric appliance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1997137B (en) | Method of auto-configuring audio-video signals and associated apparatus | |
| JPH0630338A (en) | Caption video cassette recorder and method for reception of caption control signal | |
| CN107094239A (en) | A kind of method and apparatus for determining video format information | |
| CN202206458U (en) | Automatic identification device for two types of signals at one port of television | |
| KR100996622B1 (en) | Video apparatus with video signal detection and respective method for recognizing a video signal | |
| CN102420949A (en) | Method and device for automatically identifying two varieties of signals at same port of television | |
| JPH08223500A (en) | Display device | |
| CN102833611A (en) | Set top box and power-saving control method | |
| CN101365085A (en) | Method for television signal source detection and television set | |
| CN101867731A (en) | Automatic preferential switch decision method of video signal interruption | |
| CN100405816C (en) | Method for sharing high-clarity signal interface and AV video-frequency signal interface | |
| US20090262840A1 (en) | Synchronization Signal Extraction Device and Related Method | |
| CN106331531B (en) | The switching circuit and switching method of vision signal | |
| CN101860703A (en) | Full screen picture in picture | |
| CN206341310U (en) | A kind of signal terminal multiplexer and television set | |
| JP2542970B2 (en) | Image display controller | |
| KR950007872B1 (en) | Apparatus and method for automatically switching audio/video | |
| CN100366049C (en) | Processor and processing method for input signals of television | |
| CN105872751A (en) | Screen-free television capable of playing through multiple sound channels | |
| EP1453326A2 (en) | Video apparatus with video signal detection and respective method for recognizing a video signal | |
| KR100308036B1 (en) | Dual subtitle receiving method and subtitle TV | |
| CN107888847A (en) | A kind of device and method of external splicer automatic signal switching | |
| KR101652441B1 (en) | Video display apparatus and method of identifying input signal of component | |
| KR0169698B1 (en) | Apparatus for reproducing sub-screen by detect of weak signal television having pip function | |
| JPH04183184A (en) | Image display controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120418 |
|
| RJ01 | Rejection of invention patent application after publication |