CN201957213U - Device for multiplexing headphone cable as receiving antenna - Google Patents
Device for multiplexing headphone cable as receiving antenna Download PDFInfo
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- CN201957213U CN201957213U CN2010206915711U CN201020691571U CN201957213U CN 201957213 U CN201957213 U CN 201957213U CN 2010206915711 U CN2010206915711 U CN 2010206915711U CN 201020691571 U CN201020691571 U CN 201020691571U CN 201957213 U CN201957213 U CN 201957213U
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Abstract
The utility model relates to a device for multiplexing a headphone cable as a receiving antenna. The device comprises a headphone cable, a headphone connector, a filtering module and a TV processing module, wherein the headphone cable is connected with the headphone connector so as to transmit radio-frequency signals in air, caught by the headphone cable, to the filtering module through the headphone connector; the filtering module is connected with the headphone connector so as to be convenient to receive the radio-frequency signals from the headphone connector and filter the radio-frequency signals to obtain TV signals in the radio-frequency signals; and the TV processing module is connected with the filtering module so as to be convenient to convert the received TV signals into corresponding video signals and audio signals. Compared with a telescopic antenna, the device has greatly reduced cost and can be widely applied to TV equipment.
Description
Technical field
The utility model relates to electronic communication field, relates in particular to the reception antenna of electronic equipment.
Background technology
In a very long time, the rod-pulling type antenna all in occupation of important position, all uses telescopic antenna as indoor reception antenna as a lot of simulated televisions, broadcast receiver etc. in domestic aerial.That telescopic antenna has is simple to operate, regulate advantages such as flexible, and therefore up to this point, electronic equipments such as still old both at home and abroad a lot of middle-size and small-size and micro-television sets, broadcast receiver use telescopic antenna.
Telescopic antenna is broadly divided into three kinds: fixed, plug-in and plug-type.Yet the telescopic antenna of quovis modo, its employed material all is copper or stainless steel.And copper is relative with the stainless steel cost higher, therefore directly causes the telescopic antenna cost higher relatively, especially under the deficient day by day situation of non-ferrous metal, has limited being extensive use of of telescopic antenna more.
This shows, a kind of cheap and can replace the reception antenna of telescopic antenna will have important practical being worth.
The utility model content
It is the device of reception antenna that the utility model provides a kind of multiplexing earphone cord that can overcome the above problems.
In first aspect, it is the device of reception antenna that the utility model provides a kind of multiplexing earphone cord.This device comprises earphone cord, and comprises earphone interface, filtering module and TV processing module.This earphone cord links to each other with this earphone interface, thereby radiofrequency signal transfers to this filtering module by this earphone interface in the air that will be captured by this earphone cord.This filtering module links to each other with this earphone interface, so that receive the radiofrequency signal from this earphone interface, and this radiofrequency signal is carried out Filtering Processing, to obtain TV signal wherein.This TV processing module links to each other with this filtering module, so that its TV signal that receives is converted to corresponding video signals and audio signal.
Further, above-mentioned TV processing module comprises tuner, audio-frequency module, video module.And this tuner links to each other with described filtering module, so that receive the TV signal from this filtering module, and this TV signal is carried out demodulation, thereby obtains corresponding audio signal and vision signal.This audio-frequency module links to each other with this tuner, so that receive the audio signal from this tuner, and this audio signal is processed.This video module links to each other with this tuner, so that receive the vision signal from this tuner, and this vision signal is processed.
Further, this multiplexing earphone cord is reception antenna device also comprises display module.And this display module links to each other with video module, so that receive the processed video signal from this video module, thereby corresponding video information is shown.
Further, this multiplexing earphone cord is reception antenna device also comprises audio drive circuitry.This audio drive circuitry one end links to each other with audio-frequency module, the other end links to each other with earphone interface, so that the audio signal after this processing that will be obtained by this audio-frequency module is amplified, audio signal after will amplifying again transfers to this earphone cord by this earphone interface, so that play out respective audio information.
Further, this multiplexing earphone cord is reception antenna device also comprises the first anti-leak device and the second anti-leak device.This first anti-leak device, one end is connected to the left channel signals line of this earphone interface, and the other end is connected to this audio drive circuitry, enters into this audio drive circuitry to prevent radiofrequency signal by the left channel signals line of this earphone interface.This second anti-leak device, one end is connected to the right-channel signals line of this earphone interface, and the other end is connected to this audio drive circuitry, enters into this audio drive circuitry to prevent radiofrequency signal by the right-channel signals line of this earphone interface.
Further, this multiplexing earphone cord is reception antenna device also comprises the 3rd anti-leak device.The 3rd anti-leak device one end is connected to the earth signal line of this earphone interface, and other end ground connection enters into ground to prevent radiofrequency signal by the earth signal line of this earphone interface.
Further, above-mentioned anti-leak device is a passive filter.
Further, in the left channel signals line of this multiplexing earphone cord multiplexing earphone interface of device that is reception antenna, right-channel signals line, the earth signal line is reception antenna.
Further, above-mentioned earphone interface also comprises the microphone signal line, and multiplexing this microphone signal line of this device is a reception antenna.
The utility model is a reception antenna by multiplexing earphone cord, thereby the reception antenna cost of television equipment is reduced significantly, when enlarging the antenna scope of application, has also alleviated the imbalance between supply and demand of non-ferrous metal to a certain extent.
Description of drawings
Below with reference to accompanying drawings specific embodiments of the present utility model is described in detail, in the accompanying drawings:
Fig. 1 is that the multiplexing earphone earth signal line of an embodiment of the utility model is the system block diagram of television antenna;
Fig. 2 is that the multiplexing earphone left channel signals line of another embodiment of the utility model is the system block diagram of television antenna;
Fig. 3 is that the multiplexing earphone right-channel signals line of the another embodiment of the utility model is the system block diagram of television antenna.
Embodiment
Fig. 1 is that the multiplexing earphone earth signal line of an embodiment of the utility model is the system block diagram of television antenna, and this system comprises earphone cord 110, earphone interface 120, filtering module 130, TV processing module 140, audio drive circuitry 150, display module 160; Wherein this TV processing module 140 comprises tuner 141, audio-frequency module 142, video module 143.
Because these earphone cord 110 inside are metal wires, therefore when being inserted into this earphone cord 110 in this earphone interface 120, this earphone cord 110 just can be caught airborne radiofrequency signal, comprises the TV signal from the terrestrial television signal launching tower.
The interface line of earphone interface 120 comprises left channel signals line, right-channel signals line, earth signal line, and some earphone interface also comprises microphone signal line (not making diagram among Fig. 1).And an anti-leak device 160 is arranged respectively between this left channel signals line, right-channel signals line and the audio drive circuitry 150, enter into this audio drive circuitry 150 to have prevented radiofrequency signal (comprising TV signal).And between these earphone interface 120 earth signal lines and ground (ground connection), an anti-leak device 160 is arranged also, flow in the ground to have prevented radiofrequency signal (comprising TV signal).In the example, this anti-leak device 160 is a passive filter.
Among Fig. 1, filtering module 130 links to each other with this earphone interface 120 by the earth signal line in the earphone interface 120, so that radio signal transmission is to this filtering module 130 in the air that will be captured by this earphone cord 110.This filtering module 130 is used for other signals outside the filtering TV signal, to obtain TV signal.That is to say that this filtering module 130 carries out Filtering Processing to its signal that receives, to obtain TV signal.
This video module 143 is handled the vision signal that it receives, as filtering noise, analog-to-digital conversion etc., to obtain to have the vision signal of higher resolution, and then this processed video signal is sent to display module 160, so that this display module 160 shows corresponding video information.
This audio-frequency module 142 is handled the audio signal that it receives, and as filtering noise, digital-to-analogue conversion etc., obtaining to have the audio signal of preferable tonequality, and then the audio signal after will handling is sent to this audio drive circuitry 150.
This audio drive circuitry 150 receives from the audio signal after the processing of this audio-frequency module 142, and the audio signal after will handling is carried out the audio frequency amplification with the power form.
This earphone interface 120 receives from the audio signal after this amplification of this audio drive circuitry 150 by its left channel signals line, right-channel signals line, so that listen to and the corresponding voice of this audio signal by earphone, as listens to music etc.
Need to prove that this anti-leak device 160 between this earphone interface 120 and this audio drive circuitry 150 only is used to intercept AC signal, and does not intercept direct current signal.Radiofrequency signal is an AC signal, so anti-leak device 160 stops radiofrequency signal to enter into audio drive circuitry 150 by earphone interface 120; And audio signal is a direct current signal, so anti-leak device 160 can not stop audio signal to enter into earphone interface 120 from audio drive circuitry 150.
In addition, the utility model can multiplexing this earphone left channel signals line be a television antenna also, and referring to Fig. 2, Fig. 2 is that the multiplexing earphone left channel signals line of another embodiment of the utility model is the system block diagram of television antenna.Fig. 2 and Fig. 1 difference is, Fig. 2 is that the left channel signals line with earphone interface 120 is connected to TV processing module 140 by filtering module 130.And Fig. 2 is multiplexed with television antenna with earphone left channel signals line, and is with Fig. 1 that the operation principle that earphone earth signal line is multiplexed with television antenna is identical, do not repeat them here.
The utility model can also multiplexing this earphone right-channel signals line be a television antenna, and referring to Fig. 3, Fig. 3 is that the multiplexing earphone right-channel signals line of another embodiment of the utility model is the system block diagram of television antenna.Fig. 3 and Fig. 1 difference is, Fig. 3 is that the right-channel signals line with earphone interface 120 is connected to TV processing module 140 by filtering module 130.And Fig. 3 is multiplexed with television antenna with earphone right-channel signals line, and is with Fig. 1 that the operation principle that earphone earth signal line is multiplexed with television antenna is identical, also repeats no more at this.
And, if earphone interface has the microphone signal line, also this microphone signal line can be multiplexed with television antenna, concrete multiplex mode and preamble be described, and that the earth signal line is multiplexed with the principle of television antenna is identical, does not repeat them here.
Obviously, under the prerequisite that does not depart from true spirit of the present utility model and scope, the utility model described here can have many variations.Therefore, the change that all it will be apparent to those skilled in the art that all should be included within the scope that these claims contain.The utility model scope required for protection is only limited by described claims.
Claims (9)
1. device that multiplexing earphone cord is a reception antenna, this device comprises earphone cord, and comprises earphone interface, filtering module and TV processing module;
This earphone cord links to each other with this earphone interface, thereby radiofrequency signal transfers to this filtering module by this earphone interface in the air that will be captured by this earphone cord;
This filtering module links to each other with this earphone interface, so that receive the radiofrequency signal from this earphone interface, and this radiofrequency signal is carried out Filtering Processing, to obtain TV signal wherein;
This TV processing module links to each other with this filtering module, so that its TV signal that receives is converted to corresponding video signals and audio signal.
2. the device that a kind of multiplexing earphone cord as claimed in claim 1 is a reception antenna is characterized in that described TV processing module comprises tuner, audio-frequency module, video module;
This tuner links to each other with described filtering module, so that receive the TV signal from this filtering module, and this TV signal is carried out demodulation, thereby obtains corresponding audio signal and vision signal;
This audio-frequency module links to each other with this tuner, so that receive the audio signal from this tuner, and this audio signal is processed;
This video module links to each other with this tuner, so that receive the vision signal from this tuner, and this vision signal is processed.
3. the device that a kind of multiplexing earphone cord as claimed in claim 2 is a reception antenna is characterized in that this device also comprises display module; This display module links to each other with described video module, so that receive the processed video signal from this video module, thereby corresponding video information is shown.
4. the device that a kind of multiplexing earphone cord as claimed in claim 1 is a reception antenna is characterized in that this device also comprises audio drive circuitry;
This audio drive circuitry one end links to each other with described audio-frequency module, the other end links to each other with described earphone interface, so that the audio signal after this processing that will be obtained by this audio-frequency module is amplified, audio signal after will amplifying again transfers to this earphone cord by this earphone interface, so that play out respective audio information.
5. the device that a kind of multiplexing earphone cord as claimed in claim 4 is a reception antenna is characterized in that, this device also comprises the first anti-leak device and the second anti-leak device;
This first anti-leak device, one end is connected to the left channel signals line of this earphone interface, and the other end is connected to this audio drive circuitry, enters into this audio drive circuitry to prevent radiofrequency signal by the left channel signals line of this earphone interface;
This second anti-leak device, one end is connected to the right-channel signals line of this earphone interface, and the other end is connected to this audio drive circuitry, enters into this audio drive circuitry to prevent radiofrequency signal by the right-channel signals line of this earphone interface.
6. the device that a kind of multiplexing earphone cord as claimed in claim 1 is a reception antenna is characterized in that this device also comprises the 3rd anti-leak device;
The 3rd anti-leak device one end is connected to the earth signal line of this earphone interface, and other end ground connection enters into ground to prevent radiofrequency signal by the earth signal line of this earphone interface.
7. the device that is reception antenna as claim 5 or 6 described a kind of multiplexing earphone cords is characterized in that described anti-leak device is a passive filter.
8. the device that a kind of multiplexing earphone cord as claimed in claim 1 is a reception antenna is characterized in that, one in the left channel signals line of the multiplexing earphone interface of described device, right-channel signals line, the earth signal line is reception antenna.
9. the device that a kind of multiplexing earphone cord as claimed in claim 1 is a reception antenna is characterized in that described earphone interface also comprises the microphone signal line, and multiplexing this microphone signal line of this device is a reception antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206915711U CN201957213U (en) | 2010-12-22 | 2010-12-22 | Device for multiplexing headphone cable as receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206915711U CN201957213U (en) | 2010-12-22 | 2010-12-22 | Device for multiplexing headphone cable as receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201957213U true CN201957213U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206915711U Expired - Fee Related CN201957213U (en) | 2010-12-22 | 2010-12-22 | Device for multiplexing headphone cable as receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201957213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780990A (en) * | 2014-01-23 | 2014-05-07 | 上海斐讯数据通信技术有限公司 | Headset with display function and display method |
| CN112399296A (en) * | 2019-08-19 | 2021-02-23 | Oppo广东移动通信有限公司 | Wearable device |
-
2010
- 2010-12-22 CN CN2010206915711U patent/CN201957213U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780990A (en) * | 2014-01-23 | 2014-05-07 | 上海斐讯数据通信技术有限公司 | Headset with display function and display method |
| CN112399296A (en) * | 2019-08-19 | 2021-02-23 | Oppo广东移动通信有限公司 | Wearable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NXP BV Free format text: FORMER OWNER: BEIJING QUINTIC MICROELECTRONICS CO., LTD. Effective date: 20150226 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150226 Address after: Holland Ian Deho Finn Patentee after: NXP BV Address before: 100084, B, building eight, Tsinghua Science Park, No.1, Zhongguancun East Road, Haidian District, Beijing, 301A Patentee before: Quintic Beijing Microelectroni |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20191222 |