CN204465819U - Connect earphone in advance - Google Patents
Connect earphone in advance Download PDFInfo
- Publication number
- CN204465819U CN204465819U CN201520181642.6U CN201520181642U CN204465819U CN 204465819 U CN204465819 U CN 204465819U CN 201520181642 U CN201520181642 U CN 201520181642U CN 204465819 U CN204465819 U CN 204465819U
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- CN
- China
- Prior art keywords
- earphone
- playing device
- signal input
- advance
- electronic switch
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- 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
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Abstract
The utility model discloses one and connect earphone in advance, it comprises audio signal input end, control signal input, the first playing device and the second playing device; Described audio signal input end connects described second playing device through the first power amplifier, and described first power amplifier connects described first playing device through described first electronic switch; Described control signal input connects a control circuit, and described control circuit connects and controls described first electronic switch; Described first playing device is loud speaker, and described second playing device is earphone.Earphone can be connected on television set in advance, but does not affect the voice output of former television set.The other end of earphone can connect in advance and be fixed to the position that handicapped people or old man often sit, and if desired earphone can be worn at any time, and with remote controller, television audio signals is converted to earphone and exports.Cost is low, practical, simple to operate, rational in infrastructure.
Description
Technical field
The utility model relates to a kind of electronic technology field, particularly relates to one and connects earphone in advance.
Background technology
TV can receive multiple channel signals and play, and is that people live indispensable household electrical appliance, is also to accompany handicapped people or the elderly's time maximum partner.But at night, in the especially late into the night, for the people that hearing is more weak, heightening sound can affect other people rest; Turn down sound oneself then to can't hear.If by common headphones, for handicapped people, to move to before TV and headset plug to be inserted in corresponding earphone jack very difficult, even cannot complete.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of convenience, rational in infrastructure connects earphone in advance.
For solving the problems of the technologies described above, the technical solution of the utility model is: one connects earphone in advance, comprises audio signal input end, control signal input, the first playing device and the second playing device.
Described audio signal input end connects described second playing device through the first power amplifier, and described first power amplifier connects described first playing device through described first electronic switch.
Described control signal input connects a control circuit, and described control circuit connects and controls described first electronic switch.
As preferred technical scheme, described first playing device is loud speaker, and described second playing device is earphone.
As preferred technical scheme, described control signal input is mute signal input.
As preferred technical scheme, described audio control system also comprises the second electronic switch, and described second electronic switch accepts the control of described control circuit and is connected between described first power amplifier and the second playing device.
As preferred technical scheme, described earphone is long line earphone.
As preferred technical scheme, the connection line length of described earphone is 10 ~ 15 meters.
As preferred technical scheme, described control circuit is circuit for reversing.
As preferred technical scheme, described circuit for reversing is 1/2 selection circuit.
The utility model also provides another kind to connect earphone in advance, comprises audio signal input end, control signal input, the first playing device and the second playing device;
Described audio signal input end connects described first playing device through the first electronic switch and the first power amplifier;
Described audio signal input end also connects described second playing device through the second electronic switch and the second power amplifier;
Described control signal input connects a control circuit, and described first electronic switch is all connected described control circuit with the second electronic switch.
As preferred technical scheme, described first playing device is loud speaker, and described second playing device is earphone.
As preferred technical scheme, described control signal input is mute signal input.
Owing to have employed technique scheme, the utility model has the following advantages: earphone can be connected on television set in advance, but does not affect the voice output of former television set.The other end of earphone can connect in advance and be fixed to the position that handicapped people or old man often sit, and if desired earphone can be worn at any time, and with remote controller, television audio signals is converted to earphone and exports.
Cost is low, practical, simple to operate, rational in infrastructure.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the utility model embodiment 1;
Fig. 2 is the structure principle chart of the utility model embodiment 2;
Fig. 3 is the structure principle chart of the utility model embodiment 3.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment one: as shown in Figure 1, of the present utility modelly connects earphone in advance, comprises audio signal input end, control signal input, the first playing device and the second playing device.Wherein:
Described audio signal input end connects described second playing device through the first power amplifier, and described first power amplifier connects described first playing device through described first electronic switch, described control signal input connects a control circuit, and described control circuit connects and controls described first electronic switch.
In embody rule, if control circuit receives the control signal instruction of control signal input, then control the first electronic switch and disconnect, namely disconnect the first power amplifier with the passage between the first playing device, make to export from the first playing device voiceless sound.Audio signal arrives the second playing device through the first power amplifier, only by the second playing device output sound.
When control circuit receive remove controls signal instruction time, then control first electronic switch connect, the audio signal through the first power amplifier enters the first electronic switch, by the first playing device output sound.Audio signal through the first power amplifier also enters the second playing device simultaneously, and the second playing device is synchronism output sound also, realizes the first playing device and the second playing device output sound simultaneously whereby.
Preferably, in embodiment of the present utility model, the first playing device is loud speaker, and the second playing device is earphone, and described control signal can be the mute signal from remote controller, also can for the signal of button arranged for this functional independence.Specifically, described loud speaker and earphone are all applied to Household audio video equipment, such as computer, TV etc.Earphone is preferably long line earphone, and its connecting line length can be set to 10 ~ 15 meters according to different demand, makes user can apply earphone listening to audio signal more at a distance whereby.
Embodiment two: as shown in Figure 2, the present embodiment and something in common embodiment illustrated in fig. 1 do not repeat them here, and only difference are described explanation below.
In the present embodiment, connect earphone in advance and also comprise the second electronic switch, described second electronic switch accepts the control of described control circuit and is connected between described first power amplifier and the second playing device.Described second electronic switch, for accepting the instruction of control circuit, turns on and off the transmission line between the first power amplifier and the second playing device.
Control circuit of the present utility model is circuit for reversing, and it is preferably 1/2 and selects control circuit, and that is, the first electronic switch controlled by this control circuit and the second electronic switch at one time, can only have a connection, and another turns off.In practical application, when control circuit receives control signal instruction, second electronic switch is connected, audio signal through the first power amplifier enters the second electronic switch, by the second playing device output sound, meanwhile, the first electronic switch disconnects, and the first playing device (loud speaker) voiceless sound exports.
When control circuit receives signal instruction of removing controls, the first electronic switch is connected, and the audio signal through the first power amplifier enters the first electronic switch, and by the first playing device output sound, the second electronic switch disconnects, and voiceless sound exports from the second playing device.
Embodiment three: as shown in Figure 3, the earphone that connects in advance of the present embodiment draws together audio signal input end, control signal input, the first playing device and the second playing device, wherein:
Described audio signal input end connects described first playing device through the first electronic switch and the first power amplifier, described audio signal input end also connects described second playing device through the second electronic switch and the second power amplifier, described control signal input connects a control circuit, and described first electronic switch is all connected described control circuit with the second electronic switch.
During specific works, when control circuit receives control signal instruction, control the second electronic switch and connect, audio signal enters the second power amplifier through the second electronic switch, by the second playing device output sound.Meanwhile, the first electronic switch disconnects, and voiceless sound exports from the first playing device.
When control circuit receives the instruction cancelling mute signal, then control the first electronic switch and connect, audio signal enters the first power amplifier through the first electronic switch, by the first playing device output sound.Meanwhile, the second electronic switch disconnects, and voiceless sound exports from the second electronic playing device.In this embodiment, the first playing device preferentially adopts loud speaker, and the second playing device preferably adopts earphone.
Claims (11)
1. connect an earphone in advance, it is characterized in that, comprise audio signal input end, control signal input, the first playing device and the second playing device;
Described audio signal input end connects described second playing device through the first power amplifier, and described first power amplifier connects described first playing device through described first electronic switch;
Described control signal input connects a control circuit, and described control circuit connects and controls described first electronic switch.
2. connect earphone in advance as claimed in claim 1, it is characterized in that, described first playing device is loud speaker, and described second playing device is earphone.
3. connect earphone in advance as claimed in claim 2, it is characterized in that, described control signal input is mute signal input.
4. as described in any one of claims 1 to 3, connect earphone in advance, it is characterized in that, the described earphone that connects in advance also comprises the second electronic switch, and described second electronic switch accepts the control of described control circuit and is connected between described first power amplifier and the second playing device.
5. connect earphone in advance as claimed in claim 2, it is characterized in that, described earphone is long line earphone.
6. connect earphone in advance as claimed in claim 5, it is characterized in that, the connection line length of described earphone is 10 ~ 15 meters.
7. connect earphone in advance as claimed in claim 1, it is characterized in that, described control circuit is circuit for reversing.
8. connect earphone in advance as claimed in claim 7, it is characterized in that, described circuit for reversing is 1/2 selection circuit.
9. connect an earphone in advance, it is characterized in that, comprise audio signal input end, control signal input, the first playing device and the second playing device;
Described audio signal input end connects described first playing device through the first electronic switch and the first power amplifier;
Described audio signal input end also connects described second playing device through the second electronic switch and the second power amplifier;
Described control signal input connects a control circuit, and described first electronic switch is all connected described control circuit with the second electronic switch.
10. connect earphone in advance as claimed in claim 9, it is characterized in that, described first playing device is loud speaker, and described second playing device is earphone.
11. connect earphone as claimed in claim 10 in advance, it is characterized in that, described control signal input is mute signal input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181642.6U CN204465819U (en) | 2015-03-27 | 2015-03-27 | Connect earphone in advance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181642.6U CN204465819U (en) | 2015-03-27 | 2015-03-27 | Connect earphone in advance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204465819U true CN204465819U (en) | 2015-07-08 |
Family
ID=53672637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520181642.6U Expired - Fee Related CN204465819U (en) | 2015-03-27 | 2015-03-27 | Connect earphone in advance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204465819U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730399A (en) * | 2018-07-17 | 2020-01-24 | 青岛海信电器股份有限公司 | Display device earphone control circuit and display device |
-
2015
- 2015-03-27 CN CN201520181642.6U patent/CN204465819U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110730399A (en) * | 2018-07-17 | 2020-01-24 | 青岛海信电器股份有限公司 | Display device earphone control circuit and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20180327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |