CN101378467A - Device for switching digital and analog television signals - Google Patents
Device for switching digital and analog television signals Download PDFInfo
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- CN101378467A CN101378467A CNA2007101459310A CN200710145931A CN101378467A CN 101378467 A CN101378467 A CN 101378467A CN A2007101459310 A CNA2007101459310 A CN A2007101459310A CN 200710145931 A CN200710145931 A CN 200710145931A CN 101378467 A CN101378467 A CN 101378467A
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- television signals
- switching device
- analog television
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Abstract
The invention discloses a switching device for a digital TV signal and an analog TV signal, which is suitable for a TV signal receiving device connected with a computer which executes an application program to control the TV signal receiving device. The switching device comprises an input unit, a switching unit and an output unit; wherein, the input unit is used for receiving the digital TV signal and the analog TV signal, the switching unit is connected with the TV signal receiving device by a transmission line so as to acquire a switching signal generated by the application program, thereby selecting one of the digital TV signal and the analog TV signal. Moreover, the output unit outputs one of the signal of the digital TV signal and the analog TV signal selected by the switching unit to the TV signal receiving device.
Description
Technical field
The present invention relates to the switching device shifter of a kind of numerical digit and analog television signals, particularly relevant for the technical field of choosing of can application controlling a DVB-T signal or an analog television signals.
Background technology
Flourish along with DVB-T and computer system, more and more many people select to see through computer and watch DVB-T program and analog television program.But because of TV signal receiving device (as TV card or TV box) in order to reception DVB-T signal and analog television signals, only can connect a signal transmission line (as antenna or cable) at one time, with receive numerical digit or analog television signals one of them, again this television signal is sent in the computer, views and admires numerical digit or analog television program for the user.Therefore, how to switch numerical digit and analog television signals, become and liked seeing through the problem that people were concerned about that computer is appreciated TV programme.
And in the prior art, when user's desire is switched numerical digit or analog television signals, need usually manually the signal transmission line (as antenna) that TV signal receiving device connected to be extracted by the user, insert another signal transmission line (as cable) again.Thus, not only cause losing of signal transmission line easily, also can make that the joint generation of signal transmission line is loosening, and even influence the quality of television signal.On the other hand, when a TV programme was made video recording in user's reservation, if signal transmission line need switch just and can record, and the user also just can not do a Plug Action to signal transmission line not by computer, so that can't record this TV programme.
For solving the shortcoming of prior art, to satisfy the demand of learner to the switching device shifter of numerical digit and analog television signals, the inventor is based on going in for the study for many years and many practical experience, through research and design and special topic are inquired in many ways, in the present invention the switching device shifter of a kind of numerical digit and analog television signals is proposed, with as aforementioned expectation one implementation and foundation.
Summary of the invention
Main purpose of the present invention provides the switching device shifter of a kind of numerical digit and analog television signals, particularly relevant for adopting an application, to choose a DVB-T signal or an analog television signals, and then satisfy the demand of user to the switching device shifter of numerical digit and analog television signals, and the shortcoming of solution prior art, to switch numerical digit or analog television signals easily.
Edge is that for reaching above-mentioned purpose, the present invention proposes the switching device shifter of a kind of numerical digit and analog television signals.This switching device shifter is to be connected with a TV signal receiving device and a computer, and computer is carried out an application with the control TV signal receiving device.And switching device shifter comprises an input unit, at least and switches a unit and an output unit.Wherein, input unit receives a DVB-T signal and an analog television signals.Moreover switch unit sees through a transmission line and is connected with TV signal receiving device, obtaining the switching signal that application is produced, and choose DVB-T signal and analog television signals one of them.In addition, output unit be DVB-T signal that switch unit is selected and analog television signals one of them, export TV signal receiving device to.
In addition, the present invention reintroduces the switching device shifter of another kind of numerical digit and analog television signals.This switching device shifter is to see through a transmission line to be connected with a TV signal receiving device, operate power supply to obtain one, and TV signal receiving device is connected with a computer, and computer is carried out an application with the control TV signal receiving device.And switching device shifter comprises an input unit, at least and switches a unit and an output unit.Wherein, input unit receives a DVB-T signal and an analog television signals.In addition, switch unit according to the running power supply a magnitude of voltage, with choose DVB-T signal and analog television signals one of them.Also have, output unit be DVB-T signal that switch unit is selected and analog television signals one of them, export TV signal receiving device to.
The invention has the beneficial effects as follows: the switching device shifter that a kind of numerical digit and analog television signals are provided, adopt an application, choose DVB-T signal or analog television signals, can switch numerical digit or analog television signals easily, and then satisfy the demand of user the switching device shifter of numerical digit and analog television signals.
Description of drawings
Fig. 1 is the schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals;
Fig. 2 is another schematic diagram of the switching device shifter of another numerical digit of the present invention and analog television signals;
Fig. 3 is the first preferred embodiment schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals; And
Fig. 4 is the second preferred embodiment schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals.
The figure number explanation:
11: switching device shifter; 111: input unit;
1111: digital signals input module; 1112: analog signal input module;
1113: the DVB-T signal; 1114: analog television signals;
112: switch unit; 113: gain unit;
114: output unit; 12: TV signal receiving device;
13: computer; 131: application;
132: switch signal; 21: switching device shifter;
211: input unit; 2111: digital signals input module;
2112: analog signal input module; 2113: the DVB-T signal;
2114: analog television signals; 212: switch unit;
213: gain unit; 214: output unit;
22: TV signal receiving device; 221: the running power supply;
23: computer; 231: application;
232: switch signal; 31: switching device shifter;
311: digital signals input module; 3111: antenna;
312: analog signal input module; 3132: cable;
313: switch unit; 314: the first slots;
3141: winding displacement; 315: gain unit;
316: output unit; 317: signal line;
32: TV card; 321: receiving element;
322: the second slots; 41: switching device shifter;
411: digital signals input module; 4111: antenna;
412: analog signal input module; 4132: cable;
413: switch unit; 414: gain unit;
415: output unit; 416: transmission line;
42: TV box; 421: receiving element;
43: computer; 431: USB.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, hereinafter,, and cooperate appended relevant indicators especially exemplified by preferred embodiment according to the switching device shifter of numerical digit of the present invention and analog television signals, be described in detail below, wherein components identical will be illustrated with the components identical symbol.
Seeing also Fig. 1, is the schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals.Among the figure, switching device shifter 11 is to be connected with a TV signal receiving device 12 (as TV card) and a computer 13, and computer 13 is carried out an application 131 with control TV signal receiving device 12.And switching device shifter 11 comprises an input unit 111, at least and switches a unit 112 and an output unit 114.Wherein, input unit 111 is to have digital signals input module 1111 and analog signal input module 1112, to receive a DVB-T signal 1113 and an analog television signals 1114 respectively.Moreover switch unit 112 is to see through a transmission line to be connected with TV signal receiving device 12, obtaining the switching signal 132 that application 131 is produced, and according to switching signal 132 choose DVB-T signal 1113 and analog television signals 1114 one of them.
In addition, output unit 114 be DVB-T signal 1113 that switch unit 112 is selected and analog television signals 1114 one of them, export TV signal receiving device 12 to, transfer on the computer 13 by TV signal receiving device 12 again.In addition, switching device shifter 11 also can increase by a gain unit 113, with a sensitivity (Sensitivity) of raising DVB-T signal 1113 and analog television signals 1114, and the problem of compensating signature decay.And gain unit 113 can be controlled by the controlling signal that application 131 is produced.Also have, when user's desire is preengage the TV programme of make video recording numerical digit channel and analogy channel, the user can set the channel and the time of making video recording that starts in application 131, then application 131 can be in subscription time, produce switching signal 132 according to the television channel that sets, make switch unit 112 choose DVB-T signal 1113 or analog television signals 1114, and application 131 can be made video recording on computer 13 program that the user sets.
Seeing also Fig. 2, is another schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals.Among the figure, switching device shifter 21 is to see through a transmission line to be connected with a TV signal receiving device 22 (for example TV box), to obtain the running power supply 221 that TV signal receiving device 22 is provided, and TV signal receiving device 22 is connected with a computer 23, and computer 23 is carried out an application 231 with control TV signal receiving device 22.And switching device shifter 21 comprises an input unit 211, at least and switches a unit 212 and an output unit 214.Wherein, input unit 211 is to have digital signals input module 2111 and analog signal input module 2112, to receive a DVB-T signal 2113 and an analog television signals 2114 respectively.Moreover switch unit 212 is the magnitudes of voltage according to running power supply 221, and choose DVB-T signal 2113 and analog television signals 2114 one of them.And TV signal receiving device 22 is magnitudes of voltage of adjusting running power supply 221 according to the switching signal 232 that application 231 is produced, and when magnitude of voltage is high voltage (as+5 volts), switch unit 212 is chosen DVB-T signal 2113, and when magnitude of voltage was low-voltage (as+3.3 volts), 212 of switch units were chosen analog television signals 2114.
In addition, output unit 214 be DVB-T signal 2113 that switch unit 212 is selected and analog television signals 2114 one of them, export TV signal receiving device 22 to, transfer on the computer 23 by TV signal receiving device 22 again.In addition, switching device shifter 21 also can increase by a gain unit 213, with a sensitivity of raising DVB-T signal 2113 and analog television signals 2114, and the problem of compensating signature decay.And gain unit 213 can be controlled by the controlling signal that application 231 is produced.Also have, when user's desire is preengage the TV programme of make video recording numerical digit channel and analogy channel, the user can set the channel and the time of making video recording that starts in application 231, then application 231 can be in subscription time, produce switching signal 232 according to the television channel that sets, magnitude of voltage with control running power supply 221 makes switch unit 212 choose DVB-T signal 2113 or analog television signals 2114, and application 231 can be made video recording on computer 23 program that the user sets.
Seeing also Fig. 3, is the first preferred embodiment schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals.Among the figure, switching device shifter 31 is to be connected with a TV card 32 and a computer (figure does not show), and computer is carried out an application with control TV card 32.And switching device shifter 31 comprises digital signals input module 311 usually, analog signal input module 312, switches unit 313, one first slot 314 and an output unit 316, also can increase by a gain unit 315.
At first, utilize digital signals input module 311 to connect an antenna 3111, receiving a DVB-T signal, and utilize analog signal input module 312 to connect a cable 3132, to receive an analog television signals.Then, connect first slot 314 and second slots 322, make switch unit 313 obtain the switching signal that application produces with a winding displacement 3141, and choose DVB-T signal and analog television signals one of them.Come, a controlling signal of utilizing application to produce is come ride gain unit 315 again, with a sensitivity of raising DVB-T signal and analog television signals, and the problem of compensating signature decay.Also have,, export receiving element 321 to, transfer on the computer by TV card 32 again via a signal line 317 by output unit 316 DVB-T signal or analog television signals that switch unit 313 is selected.In addition, when user's desire is preengage the TV programme of make video recording numerical digit channel and analogy channel, the user can set the channel and the time of making video recording that starts in application, then application can be in subscription time, produce the switching signal according to the television channel that sets, make switch unit 313 choose DVB-T signal or analog television signals, and application can be made video recording on computers program that the user sets.
Seeing also Fig. 4, is the second preferred embodiment schematic diagram of the switching device shifter of numerical digit of the present invention and analog television signals.Among the figure, switching device shifter 41 is that the power lines that see through in the transmission line 416 are connected with a TV box 42, and obtaining the running power supply that TV box 42 is provided, and TV box 42 is connected with a computer 43, and computer 43 execution one application is to control TV box 42.And switching device shifter 41 comprises digital signals input module 411 usually, analog signal input module 412, switches a unit 413 and an output unit 415, also can increase by a gain unit 414.
In the time of at the beginning, utilize digital signals input module 411 to connect an antenna 4111 earlier, receiving a DVB-T signal, and utilize analog signal input module 412 to connect a cable 4132, to receive an analog television signals.Come again, by switch unit 413 according to the running power supply a magnitude of voltage, with choose DVB-T signal and analog television signals one of them.TV box 42 is that the switching signal that produces according to application is adjusted running power source voltage value, when magnitude of voltage is high voltage (as+5 volts), switch unit 413 is chosen the DVB-T signal, and when magnitude of voltage was low-voltage (as+3.3 volts), 413 of switch units were chosen analog television signals.Then, a controlling signal of utilizing application to produce is come ride gain unit 414, with a sensitivity of raising DVB-T signal and analog television signals, and the problem of compensating signature decay.Also have,, export receiving element 421 to, transfer on the computer 43 via a USB 431 by TV box 42 again via the signal line in the transmission line 416 by output unit 415 DVB-T signal or analog television signals that switch unit 413 is selected.In addition, when user's desire is preengage the TV programme of make video recording numerical digit channel and analogy channel, the user can set the channel and the time of making video recording that starts in application, then application can be in subscription time, produce the switching signal according to the television channel that sets, with control running power source voltage value, make switch unit 413 choose DVB-T signal or analog television signals, and application can be made video recording on computer 43 program that the user sets.
The above only is an illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim scope of the present invention its equivalent modifications of carrying out or change.
Claims (10)
1, the switching device shifter of a kind of numerical digit and analog television signals is applicable to the TV signal receiving device that is connected with computer, and this computer is carried out an application to control this TV signal receiving device, it is characterized in that, this switching device shifter comprises:
One input unit receives a DVB-T signal and an analog television signals;
One switches the unit, see through a transmission line and be connected with this TV signal receiving device, obtaining the switching signal that this application is produced, and according to this switching signal choose this DVB-T signal and this analogy television signal one of them; And
One output unit, be this DVB-T signal that this switch unit is selected and this analogy television signal one of them, export this TV signal receiving device to.
2, the switching device shifter of numerical digit as claimed in claim 1 and analog television signals is characterized in that, this input unit has digital signals input module and analog signal input module.
3, the switching device shifter of numerical digit as claimed in claim 1 and analog television signals is characterized in that, this switching device shifter more comprises a gain unit, and this gain unit is in order to improve the sensitivity of this DVB-T signal and this analogy television signal.
4, the switching device shifter of numerical digit as claimed in claim 3 and analog television signals is characterized in that, this gain unit is that a controlling signal that is produced by this application is controlled.
5, the switching device shifter of a kind of numerical digit and analog television signals, be to see through a transmission line to be connected with a TV signal receiving device to obtain a running power supply, and this TV signal receiving device is connected with a computer, and this computer is carried out an application to control this TV signal receiving device, and this switching device shifter comprises:
One input unit receives a DVB-T signal and an analog television signals;
One switches the unit, according to a magnitude of voltage of this running power supply choose this DVB-T signal and this analogy television signal one of them; And
One output unit, be this DVB-T signal that this switch unit is selected and this analogy television signal one of them, export this TV signal receiving device to.
6, the switching device shifter of numerical digit as claimed in claim 5 and analog television signals is characterized in that, this TV signal receiving device is this magnitude of voltage that the controlling signal that produces according to this application is adjusted this running power supply.
7, the switching device shifter of numerical digit as claimed in claim 5 and analog television signals, it is characterized in that when this magnitude of voltage was high voltage, this switch unit was chosen this DVB-T signal, when this magnitude of voltage was low-voltage, this switch unit was chosen this analogy television signal.
8, the switching device shifter of numerical digit as claimed in claim 5 and analog television signals is characterized in that, this input unit has digital signals input module and analog signal input module.
9, the switching device shifter of numerical digit as claimed in claim 5 and analog television signals is characterized in that, this switching device shifter more comprises a gain unit, and this gain unit is in order to improve the sensitivity of this DVB-T signal and this analogy television signal.
10, the switching device shifter of numerical digit as claimed in claim 9 and analog television signals is characterized in that, this gain unit is that a controlling signal that is produced by this application is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101459310A CN101378467A (en) | 2007-08-31 | 2007-08-31 | Device for switching digital and analog television signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101459310A CN101378467A (en) | 2007-08-31 | 2007-08-31 | Device for switching digital and analog television signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101378467A true CN101378467A (en) | 2009-03-04 |
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ID=40421772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101459310A Pending CN101378467A (en) | 2007-08-31 | 2007-08-31 | Device for switching digital and analog television signals |
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| Country | Link |
|---|---|
| CN (1) | CN101378467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581645A (en) * | 2018-06-07 | 2019-12-17 | 新唐科技股份有限公司 | Switching type voltage stabilizer control system |
-
2007
- 2007-08-31 CN CNA2007101459310A patent/CN101378467A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581645A (en) * | 2018-06-07 | 2019-12-17 | 新唐科技股份有限公司 | Switching type voltage stabilizer control system |
| CN110581645B (en) * | 2018-06-07 | 2021-07-23 | 新唐科技股份有限公司 | Switching type voltage stabilizer control system |
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Open date: 20090304 |