CN201601792U - Television signal transmission system capable of transmitting ATV and DTV signals at one step - Google Patents
Television signal transmission system capable of transmitting ATV and DTV signals at one step Download PDFInfo
- Publication number
- CN201601792U CN201601792U CN2009202651355U CN200920265135U CN201601792U CN 201601792 U CN201601792 U CN 201601792U CN 2009202651355 U CN2009202651355 U CN 2009202651355U CN 200920265135 U CN200920265135 U CN 200920265135U CN 201601792 U CN201601792 U CN 201601792U
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- signal
- atv
- dtv
- transmission
- frequency mixer
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Abstract
The utility model discloses a television signal transmission system capable of transmitting ATV and DTV signals at one step, which comprises an ATV signal generator, a DTV signal generator, a DVD player, a mixer and a TV signal distributor. A plurality of signal input ends and a signal output end are arranged on the mixer, the TV signal distributor is provided with a signal input end and a plurality of signal output ends, the ATV signal generator is connected with the signal input ends of the mixer through an amplifier, the DTV signal generator is also connected with the signal input ends of the mixer through the amplifier, the DVD player is connected with the signal input ends of the mixer through the amplifier, the signal input end of the TV signal distributor is connected with the signal output end of the mixer through a transmission line, and the plurality of signal output ends of the TV signal distributor are connected with a television. The television signal transmission system has the advantage of capabilities of reducing transmission lines, increasing transmission quality of RF signals and the like.
Description
[technical field]
The utility model relate to a kind of can be with the television signal transmission system of ATV, the two-in-one transmission of DTV signal.
[background technology]
At present, the ATV signal of TV and DTV signal make the transmission wire rod increase by the separately transmission of two transmission lines like this, have improved the cost of transmission system; And ATV signal and DTV signal poor anti jamming capability in the transmission course of existing transmission system, make that reformat image power is poor.For this reason, be necessary to develop a kind of transmission system, to overcome the problems referred to above.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, provide a kind of by the RF frequency mixer, make after ATV, the DTV signal impedance coupling mixed modulated can a shared transmission line signal television signal transmission system.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of can be with ATV, the television signal transmission system of the two-in-one transmission of DTV signal, include the ATV signal generator, the DTV signal generator, DVD player, include frequency mixer and TV signal distributor, frequency mixer is provided with a plurality of signal input parts and a signal output part, the TV signal distributor is provided with a signal input part and the described ATV signal generator of a plurality of signal output parts and is connected with the signal input part of frequency mixer after by amplifier, described DTV signal generator also is connected with the signal input part of frequency mixer by behind the amplifier, and described DVD player is passed through demodulator, be connected with the signal input part of frequency mixer behind the amplifier; The signal input part of described TV signal distributor is connected with the signal output part of frequency mixer by a transmission line, and a plurality of signal output parts of described TV signal distributor are connected with TV respectively.
On the transmission line between described TV signal distributor and the frequency mixer, also be connected with amplifier.
Described ATV signal generator number is that 3, DTV signal generator number are that 1, DVD player number are 1.
The model of described frequency mixer is GA2086MIXER.
The model of described amplifier is SB-7530.
The model of described ATV signal generator is GV698 or GV798.
The beneficial effects of the utility model are: can realize the effect of RF signal by a shared transmission line by the RF frequency mixer, after making ATV, DTV signal impedance coupling mixed modulated, reduced the transmission wire rod, reduce the gain reduction amount of RF transmission simultaneously, improved the RF signal transmission quality, improve the equilibrium output of RF height frequency range, made reformat image power good.
[description of drawings]
Be described in further detail below in conjunction with accompanying drawing and execution mode of the present utility model:
Fig. 1 is a structure chart of the present utility model.
[embodiment]
A kind of can be with ATV, the television signal transmission system of the two-in-one transmission of DTV signal, include ATV signal generator 1, DTV signal generator 2, DVD player 3, also include frequency mixer 4 and TV signal distributor 5, frequency mixer 4 is provided with a plurality of signal input parts and a signal output part, TV signal distributor 5 is provided with a signal input part and is connected with the signal input part of frequency mixer 4 by amplifier 6 backs with the described ATV signal generator 1 of a plurality of signal output parts, described DTV signal generator 2 also is connected with the signal input part of frequency mixer 4 by amplifier 6 backs, and described DVD player 3 is by demodulator 7, amplifier 6 backs are connected with the signal input part of frequency mixer 4; The signal input part of described TV signal distributor 5 is connected with the signal output part of frequency mixer 4 by a transmission line 8, and a plurality of signal output parts of described TV signal distributor 5 are connected with TV 9 respectively.
The ATV signal (analog video signal) that described ATV analog signal generator 1 produces is passed to frequency mixer 4 through behind the amplification of amplifier 6; The DTV signal (digital video signal) that described DTV signal generator 2 produces is passed to frequency mixer 4 through behind the amplification of amplifier 6; The signal of DVD player 3 outputs is passed to frequency mixer 4 by the amplification of amplifier again through after the decoding of demodulator 7.Frequency mixer 4 sends out by a connected transmission line 8 after with ATV signal, DTV signal mixing, and TV signal distributor 5 is given a plurality of TVs 9 with signal allocation after receiving ATV signal, DTV signal mixing signal.
In order to amplify signal, on the transmission line 8 between described TV signal distributor 5 and the frequency mixer 4, also be connected with amplifier 6 through transmission line.
Described ATV signal generator 1 number is that 3, DTV signal generator 2 numbers are that 1, DVD player 3 numbers are 1.
The model of described frequency mixer 4 is GA2086MIXER.The model of described amplifier 6 is SB-7530.The model of described ATV signal generator 1 is GV698 or GV798.
Claims (6)
1. an energy is with ATV, the television signal transmission system of the two-in-one transmission of DTV signal, include ATV signal generator (1), DTV signal generator (2), DVD player (3), it is characterized in that also including frequency mixer (4) and TV signal distributor (5), frequency mixer (4) is provided with a plurality of signal input parts and a signal output part, TV signal distributor (5) is provided with a signal input part and is connected with the signal input part of frequency mixer (4) by amplifier (6) back with the described ATV signal generators of a plurality of signal output parts (1), described DTV signal generator (2) also is connected with the signal input part of frequency mixer (4) by amplifier (6) back, and described DVD player (3) is by demodulator (7), amplifier (6) back is connected with the signal input part of frequency mixer (4); The signal input part of described TV signal distributor (5) is connected with the signal output part of frequency mixer (4) by a transmission line (8), and a plurality of signal output parts of described TV signal distributor (5) are connected with TV (9) respectively.
2. a kind of television signal transmission system of ATV, the two-in-one transmission of DTV signal can being is characterized in that also being connected with amplifier (6) on the transmission line (8) between described TV signal distributor (5) and the frequency mixer (4) according to claim 1.
3. according to claim 1 and 2 a kind of can be with the television signal transmission system of ATV, the two-in-one transmission of DTV signal, it is characterized in that described ATV signal generator (1) number is that 3, DTV signal generator (2) number are that 1, DVD player (3) number are 1.
4. according to claim 3 a kind of can be with the television signal transmission system of ATV, the two-in-one transmission of DTV signal, the model that it is characterized in that described frequency mixer (4) is GA2086MIXER.
5. according to claim 3 a kind of can be with the television signal transmission system of ATV, the two-in-one transmission of DTV signal, the model that it is characterized in that described amplifier (6) is SB-7530.
6. according to claim 3 a kind of can be with the television signal transmission system of ATV, the two-in-one transmission of DTV signal, the model that it is characterized in that ATV signal generator (1) is GV698 or GV798.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202651355U CN201601792U (en) | 2009-12-17 | 2009-12-17 | Television signal transmission system capable of transmitting ATV and DTV signals at one step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202651355U CN201601792U (en) | 2009-12-17 | 2009-12-17 | Television signal transmission system capable of transmitting ATV and DTV signals at one step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201601792U true CN201601792U (en) | 2010-10-06 |
Family
ID=42812851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202651355U Expired - Fee Related CN201601792U (en) | 2009-12-17 | 2009-12-17 | Television signal transmission system capable of transmitting ATV and DTV signals at one step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201601792U (en) |
-
2009
- 2009-12-17 CN CN2009202651355U patent/CN201601792U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20131217 |