CN201789569U - Modulator - Google Patents
Modulator Download PDFInfo
- Publication number
- CN201789569U CN201789569U CN2010202383123U CN201020238312U CN201789569U CN 201789569 U CN201789569 U CN 201789569U CN 2010202383123 U CN2010202383123 U CN 2010202383123U CN 201020238312 U CN201020238312 U CN 201020238312U CN 201789569 U CN201789569 U CN 201789569U
- Authority
- CN
- China
- Prior art keywords
- module
- remote control
- signal
- remote
- modulator
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a modulator, which is connected with an external signal source and a remote control extender. The modulator is characterized by further comprising a remote control return module which is used for receiving remote control signals sent from the remote control extender and then transmitting the remote control signals to control the external signal source. The modulator can realize remote control of the external signal source.
Description
Technical field
The utility model relates to TV domain, particularly relates to a kind of modulator.
Background technology
Existing modulator can connect with DVD (Digital Video Disc, digital video disk) player, after the audio-video signal of this DVD player output is modulated, sends to television set and plays.Because the convenience of using, above-mentioned DVD player and modulator and television set are placed on zones of different.Be placed on the bedroom such as television set, and DVD player and modulator are placed on parlor etc.Because the distance in bedroom and parlor may surpass the remote range of remote controller, when watching TV, if desired DVD player is controlled, and may need to go to the parlor and control, and causes not convenient greatly to the user.
And existing modulator is after the output of DVD player stop tone vision signal, and its modulation module is still in operation, and consume electric power is wasted resource.
Summary of the invention
One of the purpose of this utility model is for providing modulator, but energy savings, and use to the user and to facilitate.
The utility model proposes a kind of modulator, comprise the signal source receiver module, receive the signal of outside source input; Modulation module is modulated and is exported the signal that described signal source receiver module receives; Described modulator also comprises:
Detection module is connected with described signal source receiver module, and detects whether the signal input is arranged;
Energy supply control module according to the detection of detection module, is controlled the break-make of the power supply of described modulation module.
Preferably, described detection module comprises:
The separated in synchronization testing circuit.
Preferably, described energy supply control module comprises:
Control circuit.
Preferably, described modulator also comprises:
Remote control passback module is connected with the remote control stretcher of outside, receives the remote signal of described remote control stretcher transmission and spreads out of, and outside source is controlled.
Preferably, described remote control passback module comprises:
Filtration module filters the remote signal that receives;
Amplification module amplifies the remote signal after filtering;
The vibration demodulation module to the demodulation of vibrating of the remote signal after amplifying, reduces described remote signal;
Signal transmission module is sent to outside source with the remote signal of reducing, and outside source is controlled.
The utility model also proposes a kind of modulator, is connected with outside source and remote control stretcher; Described modulator also comprises:
Remote control passback module is connected with the remote control stretcher of outside, receives the remote control mode signal of described remote control stretcher transmission and spreads out of, and outside source is controlled.
Preferably, described remote control passback module comprises:
Filtration module filters the remote control mode signal that receives;
Amplification module amplifies the remote control mode signal after filtering;
The vibration demodulation module to the demodulation of vibrating of the remote signal after amplifying, reduces described remote signal;
Signal transmission module is sent to outside source with the remote signal of reducing, and outside source is controlled.
Preferably, described filtration module comprises:
Filter circuit.
Preferably, described amplification module comprises:
Amplifying circuit.
Preferably, described vibration demodulation module comprises:
Oscillating circuit and demodulator circuit.
Modulator of the present utility model can be when no AV signal input carrying out signal be modulated, with the power-off of this modulation module, saves energy; Also can realize Remote to this outside source.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment modulator;
Fig. 2 is the structural representation of the utility model one embodiment one execution mode modulator;
Fig. 3 is the structural representation of another execution mode remote control passback module of the utility model one embodiment;
Fig. 4 is the structural representation of another embodiment modulator of the utility model;
Fig. 5 is the structural representation of the remote control passback module of another embodiment one execution mode of the utility model.
The realization of the utility model purpose, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
With reference to Fig. 1, a kind of modulator 20 of the utility model one embodiment is proposed, comprise signal source receiver module 201, receive the signal of outside source 10 inputs; Modulation module 202 is modulated and is exported the signal that described signal source receiver module 201 receives, and this modulation module 202 can comprise modulation circuit; Described modulator 20 also can comprise:
Energy supply control module 204 can be controlled the break-make of the power supply of described modulation module 202 according to the detection of detection module 203.
Whether above-mentioned detection module 203 can detect this signal source receiver module 201 the signal input; This signal can be AV signal (audio-video signal); This outside source 10 can be DVD (Digital Video Disc, digital video disk) player.
Above-mentioned energy supply control module 204 can be connected with above-mentioned detection module 203, detection by detection module 203, control the break-make of the power supply of above-mentioned modulation module 202, when above-mentioned signal source receiver module 201 does not receive the signal of outside source 10, block the power supply of this modulation module 202, energy savings.
In an execution mode of present embodiment, above-mentioned detection module 203 can comprise the separated in synchronization testing circuit, it can be connected with above-mentioned signal source receiver module 201 by this separated in synchronization testing circuit, receives the AV signal (such as audio-video signal) that outside source 10 (such as DVD) sends synchronously.When this separated in synchronization testing circuit can receive the AV signal, they can be to above-mentioned energy supply control module 204 output field synchronizing signals.
In an execution mode of present embodiment, above-mentioned energy supply control module 204 comprises control circuit.This control circuit can be connected with above-mentioned separated in synchronization testing circuit, and judge whether field sync signal output is arranged in this separated in synchronization testing circuit, and when not receiving the field sync signal of this separated in synchronization testing circuit output, block the power supply of above-mentioned modulation module 202, with energy savings.
With reference to Fig. 2, in another execution mode of present embodiment, said modulator 20 also can comprise remote control passback module 205, is connected with the remote control stretcher 30 of outside, receives the remote signal that described remote control stretcher 30 sends, and outside source 10 is controlled.
Said modulator 20 can be provided with and connect remote control stretcher 30, is convenient to Remote.This modulator 20 receives the remote signal of these remote control stretcher 30 transmission and transfers to said external signal source 10 by above-mentioned remote control passback module 205, controls this outside source 10 and carries out corresponding operatings.
With reference to Fig. 3, in another execution mode of present embodiment, above-mentioned remote control passback module 205 can comprise filtration module 2051, amplification module 2052, vibration demodulation module 2053 and signal transmission module 2054; This filtration module 2051 can filter the remote signal that receives; This amplification module 2052 can amplify the remote signal after filtering; This demodulation module 2053 that vibrates can be to the demodulation of vibrating of the remote signal after amplifying, and reduces described remote signal; This signal transmission module 2054 is sent to outside source 10 with the remote signal of reducing, and outside source 10 is controlled.
Above-mentioned remote control stretcher 30 can be connected with said modulator 20 by coaxial cable.This remote control stretcher 30 is modulated at this remote signal on the carrier wave after the remote signal that reception said external signal source 10 remote controllers send, and is sent in this modulator 20 by this coaxial cable.Above-mentioned modulation can adopt ASK (Amplitude Shift Keying, amplitude shift keying) or FSK modes such as (Frequency-shift keying, frequency shift keyings) to carry out.The frequency of above-mentioned carrier wave can be 10.7MHz.
Above-mentioned filtration module 2051 receives the remote signal after the modulation of transmitting by above-mentioned coaxial cable, filters, and removes unwanted signal and clutter etc.This filtration module 2051 can comprise filter circuit.
Above-mentioned amplification module 2052 is connected with this filter circuit, to amplifying makeup energy through the remote signal of filtering.This amplification module 2052 can comprise amplifying circuit, and its gain amplifier can be 20dB etc.
Above-mentioned vibration demodulation module 2053 can comprise oscillating circuit and demodulator circuit.This oscillating circuit can be by the carrier wave that vibrates with above-mentioned carrier wave same frequency (such as 10.7MHz).This demodulator circuit can be decoded to the remote signal after the vibration, the remote signal (such as the coded signal of remote controller key) that reduction outside source 10 remote controllers send.
Above-mentioned signal transmission module 2054 can be sent to outside source 10 with the remote signal of reduction, by remote signal this outside source 10 is controlled.This outside source 10 can be audio-video signal output equipments such as DVD player.This transport module can be modulated to above-mentioned remote signal the enterprising line output of carrier wave.This carrier frequency can be 38KHz.Above-mentioned output can utilize transmission means such as infrared ray to carry out, and to make things convenient for the reception of 10 pairs of remote signals of outside source, realizes Remote.
The modulator 20 of present embodiment, can detect whether outside source 10 input AV signals are arranged by detection module 203, if not then need not modulation module 202 and modulate, then can be by the power-off of energy supply control module 204 with this modulation module 202, saves energy.This modulator 20 also can return module 205 by remote control and receive the remote signal that remote control stretcher 30 transmits, and send outside source 10 to, to realize the Long-distance Control to this outside source 10.
With reference to Fig. 4, the utility model proposes a kind of modulator 50 of another embodiment, be connected with outside source 40 and remote control stretcher 60; Described modulator 50 also can comprise:
Remote control passback module 501 is connected with the remote control stretcher 60 of outside, receives the remote signal of described remote control stretcher 60 transmissions and spreads out of, and outside source 40 is controlled.
Said modulator 50 can be provided with and connect remote control stretcher 60, is convenient to Remote.This modulator 50 receives the remote signal of these remote control stretcher 60 transmission and transfers to said external signal source 40 by above-mentioned remote control passback module 501, controls this outside source 40 and carries out corresponding operatings.
With reference to Fig. 5, in an execution mode of present embodiment, above-mentioned remote control passback module 501 can comprise filtration module 5011, amplification module 5012, vibration demodulation module 5013 and signal transmission module 5014; This filtration module 5011 can filter the remote signal that receives; This amplification module 5012 can amplify the remote signal after filtering; This demodulation module 5013 that vibrates can be to the demodulation of vibrating of the remote signal after amplifying, and reduces described remote signal; This signal transmission module 5014 is sent to outside source 40 with the remote signal of reducing, and outside source 40 is controlled.
Above-mentioned remote control stretcher 60 can be connected with said modulator 50 by coaxial cable.This remote control stretcher 60 is modulated at this remote signal on the carrier wave after the remote signal that reception said external signal source 40 remote controllers send, and is sent in this modulator 50 by this coaxial cable.Above-mentioned modulation can adopt modes such as ASK or FSK to carry out.The frequency of above-mentioned carrier wave can be 10.7MHz.
Above-mentioned filtration module 5011 receives the remote control mode signal after the modulation of transmitting by above-mentioned coaxial cable, filters, and removes unwanted signal and clutter etc.This filtration module 5011 can comprise filter circuit.
Above-mentioned amplification module 5012 is connected with this filter circuit, to amplifying makeup energy through the remote control mode signal that filters.This amplification module 5012 can comprise amplifying circuit, and its gain amplifier can be 20dB etc.
Above-mentioned vibration demodulation module 5013 can comprise oscillating circuit and demodulator circuit.This oscillating circuit can be by the ripple that vibrates with above-mentioned carrier wave same frequency (such as 10.7MHz).This demodulator circuit can be decoded to the remote signal after the vibration, the remote signal that reduction outside source 40 remote controllers send.
Above-mentioned signal transmission module 5014 can be sent to outside source 40 with the remote signal of reduction, by remote signal this outside source 40 is controlled.This outside source 40 can be audio-video signal output equipments such as DVD player.This transport module can be modulated to above-mentioned remote signal the enterprising line output of carrier wave.This carrier frequency can be 38KHz.Above-mentioned output can utilize transmission means such as infrared ray to carry out, and to make things convenient for the reception of 40 pairs of remote signals of outside source, realizes Remote.
In an execution mode of present embodiment, said external signal source 40 is an example with the DVD player, and the utility model is elaborated.
Above-mentioned DVD player and modulator 50 are placed on first room, and the television set and the remote control stretcher 60 that are connected with this modulator 50 are placed on second room.This first room and second room are not same room, and the distance in two rooms exceeds the remote control distance of DVD player remote controller.
When the user watches TV in second room, in the time of need controlling DVD player at this moment, can utilize the remote controller of DVD player to carry out remote control.After this remote controller sends remote signal, can be received by above-mentioned remote control stretcher 60, and adopt the ASK mode to be modulated on the carrier wave of 10.7MHz, transfer to by coaxial cable in the modulator 50 in above-mentioned first room.This modulator 50 receives this remote signal that is modulated on the 10.7MHz carrier wave and carries out filtering, amplification and demodulation by remote control passback module 501, reduces this remote signal; And then the remote signal of reduction is modulated on the carrier wave of 38KHz, utilize the infrared head to transfer to DVD player, this DVD player is controlled, realize Remote.
The modulator 50 of present embodiment can return module 501 by remote control and receive the remote signal that remote control stretcher 60 transmits, and send outside source 40 to, to realize the Long-distance Control to this outside source 40.
The above only is a preferred embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. a modulator is connected with outside source and remote control stretcher; It is characterized in that described modulator also comprises:
Remote control passback module is connected with the remote control stretcher of outside, receives the remote signal of described remote control stretcher transmission and spreads out of, and outside source is controlled.
2. modulator according to claim 1 is characterized in that, described remote control passback module comprises:
Filtration module filters the remote control mode signal that receives;
Amplification module amplifies the remote control mode signal after filtering;
The vibration demodulation module to the demodulation of vibrating of the remote control mode signal after amplifying, reduces described remote control mode signal;
Signal transmission module is sent to outside source with the remote control mode signal that reduces, and outside source is controlled.
3. modulator according to claim 2 is characterized in that, described filtration module comprises:
Filter circuit.
4. modulator according to claim 3 is characterized in that, described amplification module comprises:
Amplifying circuit.
5. modulator according to claim 4 is characterized in that, described vibration demodulation module comprises:
Oscillating circuit and demodulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202383123U CN201789569U (en) | 2009-08-03 | 2009-08-03 | Modulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202383123U CN201789569U (en) | 2009-08-03 | 2009-08-03 | Modulator |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203072896U Division CN201585052U (en) | 2009-08-03 | 2009-08-03 | Modulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201789569U true CN201789569U (en) | 2011-04-06 |
Family
ID=43821517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202383123U Expired - Fee Related CN201789569U (en) | 2009-08-03 | 2009-08-03 | Modulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201789569U (en) |
-
2009
- 2009-08-03 CN CN2010202383123U patent/CN201789569U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5880721A (en) | Radio computer audio-video transmission device | |
| US6373377B1 (en) | Power supply with digital data coupling for power-line networking | |
| AU746141B2 (en) | Tap antenna unit | |
| CN1286568A (en) | Cable TV terminal | |
| US20020102949A1 (en) | Remote control having an audio port | |
| WO2011109963A1 (en) | Micro-controller, processing method and device for power line carrier signal reception | |
| KR20070018482A (en) | Sound control apparatus with wireless head-phone and Wireless head-phone thereof | |
| KR20010030250A (en) | The display device, signal transmitting/receiving device and radio transmitting device | |
| CN111836097A (en) | Intelligent multimedia device for listening to television through Bluetooth and communication method | |
| CN201142126Y (en) | Infrared remote control signal wireless repeater system | |
| CN201789569U (en) | Modulator | |
| CN201585052U (en) | Modulator | |
| CN205005252U (en) | Earphone is shared to human near field communication music | |
| CN201274533Y (en) | Digital television receiving box and digital television control apparatus | |
| CN201222732Y (en) | Sound remote controller and audiovisual system matched with the same | |
| CN205375792U (en) | Take remote controller of karaoke function | |
| CN201393266Y (en) | Wireless image pickup device and mobile communication equipment adopting same | |
| CN201629807U (en) | Digital television receiving box and digital television control device | |
| CN2938646Y (en) | Cocable multi-channel transmission device for wired TV. system | |
| CN204155443U (en) | Infrared remote control adaption system | |
| CN205050338U (en) | Intelligently fusing terminal based on infrared signal transmit system | |
| KR200434001Y1 (en) | Apparatus for relay of remocon signal | |
| KR20060122021A (en) | Remote control system based on personal computer by using rf-communication | |
| JP2012085017A (en) | Hot-water supply system and intercom | |
| TWI581582B (en) | Infrared reception circuit and method |
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: 20110406 Termination date: 20120803 |