CN201234297Y - Micro wireless earphone, mobile terminal and communication device - Google Patents
Micro wireless earphone, mobile terminal and communication device Download PDFInfo
- Publication number
- CN201234297Y CN201234297Y CNU2008201280940U CN200820128094U CN201234297Y CN 201234297 Y CN201234297 Y CN 201234297Y CN U2008201280940 U CNU2008201280940 U CN U2008201280940U CN 200820128094 U CN200820128094 U CN 200820128094U CN 201234297 Y CN201234297 Y CN 201234297Y
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- modulation
- transreceiver
- antenna
- frequency modulation
- amplitude modulation
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Abstract
The utility model discloses a miniature wireless earphone, a mobile terminal and a communication device. The miniature wireless earphone comprises a wireless earphone antenna, a low-noise amplifier, a high Q value autotune circuit, a RF/AM transreceiver, a tone modulation demodulation circuit and a loudspeaker; the low-noise amplifier is connected with the high Q value autotune circuit; the RF/AM transreceiver is connected with the high Q value autotune circuit and the tone modulation demodulation circuit, and is also connected with the wireless earphone antenna; and the tone modulation demodulation circuit is connected with the loudspeaker. The miniature wireless earphone, the mobile terminal and the communication device make the best of mature RF/AM technology, realize the miniaturization of the wireless earphone, simplify the structure of the wireless earphone, and lower the cost, thereby being beneficial for the popularization and the application of the wireless earphone.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of micro radio earphone, portable terminal and communication device.
Background technology
Along with popularizing that mobile phone is used, the also increasing and supporting use of mobile phone of wireless headset, and become an essential accessory of mobile phone basically.
Existing wireless headset technology has Bluetooth technology, promptly by bluetooth (Bluetooth) transmission technology, the audio signal modulation is become radiofrequency signal, earphone is demodulated to analog signal after receiving radiofrequency signal again, become the sound that to hear for people's ear, as shown in Figure 1, realize the schematic diagram of wireless headset for Bluetooth technology.The mobile phone side comprises audio modulating circuit and Bluetooth transmission/receiver, and transmit/receive antenna; The wireless headset side comprise Bluetooth transmission/receiver and with the mobile phone sidetone supporting audio frequency demodulator circuit of modulation circuit frequently, and this audio frequency demodulator circuit audio signal that pick-up is obtained is converted to sound and is exported by loud speaker.
In realizing process of the present utility model, the inventor finds that prior art has following defective at least:
The signal frequency height of Bluetooth technology, technology realize that difficulty is very big; Bluetooth power consumption is big, can not be in the medium-term and long-term use of wireless headset.
The utility model content
Embodiment of the present utility model provides a kind of micro radio earphone, portable terminal and communication device, to realize and the matching used wireless headset universalness use of portable terminal.
The utility model provides a kind of micro radio earphone, comprising: wireless headset antenna, low noise amplifier, high Q value automatic tuning loop, frequency modulation/amplitude modulation transreceiver, voice modulation demodulator circuit and loud speaker;
Described low noise amplifier connects described high Q value automatic tuning loop;
Described frequency modulation/amplitude modulation transreceiver connects described high Q value automatic tuning loop and described voice modulation demodulator circuit, and connects described wireless headset antenna;
Described voice modulation demodulator circuit connects described loud speaker.
The utility model also provides a kind of portable terminal, comprising: frequency modulation/amplitude modulation transreceiver and voice modulation demodulator circuit, mobile terminal antenna;
Described voice modulation demodulator circuit is connected with described frequency modulation/amplitude modulation transreceiver;
Described frequency modulation/amplitude modulation transreceiver connects described mobile terminal antenna.
The utility model also provides a kind of communication device, comprises wireless headset and portable terminal;
Described wireless headset comprises: wireless headset antenna, low noise amplifier, high Q value automatic tuning loop, frequency modulation/amplitude modulation transreceiver, voice modulation demodulator circuit and loud speaker;
Described low noise amplifier connects described high Q value automatic tuning loop;
Described frequency modulation/amplitude modulation transreceiver connects described high Q value automatic tuning loop and described voice modulation demodulator circuit, and connects described wireless headset antenna;
Described voice modulation demodulator circuit connects described loud speaker;
Described portable terminal comprises: frequency modulation/amplitude modulation transreceiver and voice modulation demodulator circuit, mobile terminal antenna;
Described voice modulation demodulator circuit is connected with described frequency modulation/amplitude modulation transreceiver;
Described frequency modulation/amplitude modulation transreceiver connects described mobile terminal antenna.
Compared with prior art, the utility model has following advantage at least:
Make full use of ripe frequency modulation/amplitude modulation technology, realize that simply cost is low, helps the universal use of wireless headset.
Description of drawings
Fig. 1 is the structural representation that Bluetooth technology realizes wireless headset in the prior art;
Fig. 2 is the structural representation of micro radio earphone of the present utility model;
Fig. 3 is the structural representation of portable terminal of the present utility model;
Fig. 4 is the structural representation of communication device of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, execution mode of the present utility model is described in further detail.
The frequency modulation/amplitude modulation technology is by audio signal modulation is become fm band signal or AM band signal, in receiver, and by receiver fm band signal or the demodulation of AM band signal is reduced into audio signal through long Distance Transmission.The utility model is that the frequency modulation/amplitude modulation technology is applied to and the matching used wireless headset of portable terminal, with the frequency modulation/amplitude modulation technology audio signal is emitted from portable terminal, after the wireless headset reception, demodulation becomes audio signal, thereby realize the wireless transmission of audio signal, and realize the mutual of wireless headset and portable terminal.
As shown in Figure 2, structural representation for micro radio earphone of the present utility model comprises: wireless headset antenna 11, low noise amplifier 12, high Q value automatic tuning loop 13, frequency modulation/amplitude modulation transreceiver 14, voice modulation demodulator circuit 15 and loud speaker 16.
In execution mode of the present utility model, the micro radio earphone also comprises operation interface 20, be used for the micro radio earphone is operated, include several buttons etc. above, be used for the wave volume of micro radio earphone is regulated, be switched on or switched off conversation, fast forwarding and fast rewinding etc. are controlled, because this puts is not emphasis of the present utility model, does not repeat them here.
High Q value automatic tuning circuit 22, can be used for the signal that automatic tuning receives under the situation that shortens antenna 20 length, with the effect of low noise amplifier 12 all is to make when fm band signal or the reduction of AM band signal become audio signal, keeps the verisimilitude of audio signal etc.
In novel execution mode, the annexation of each function element is as follows:
Described low noise amplifier 12 connects described high Q value automatic tuning loop 13;
Described frequency modulation/amplitude modulation transreceiver 14 connects described high Q value automatic tuning loop 13 and described voice modulation demodulator circuit 15, and connects described wireless headset antenna 11;
Described voice modulation demodulator circuit 15 connects described loud speaker.
In the another execution mode of the utility model, described micro radio earphone also comprises pick-up 16, and described pick-up 16 is connected with described voice modulation demodulator circuit 15.
Pick-up 16 claims microphone, microphone, microphone, MIC etc. again, is a kind of device that acoustic energy is converted to electric energy.In execution mode of the present utility model, pick-up 16 is used for wireless headset user's sound is converted into the signal of telecommunication, and this signal of telecommunication is sent to voice modulation demodulation circuit 15, voice modulation demodulation circuit 15 becomes audio signal with this signal of telecommunication demodulation, frequency modulation/amplitude modulation transreceiver 14 is after receiving audio signal, audio signal is converted to fm band signal or AM band signal, and fm band signal or AM band signal are sent by wireless headset antenna 11, use for receiving, realize the sound interactive function of wireless headset and portable terminal with the matching used portable terminal of wireless headset.
Again in the execution mode, described micro radio earphone also comprises: microcontroller 18 and radio data system RDS modulator-demodulator 191 at the utility model;
Described RDS191 connects described microcontroller 18 and described frequency modulation/amplitude modulation transmitter 14.
In the another execution mode of the utility model, described micro radio earphone also comprises: microcontroller 18 and wireless broadcast system RBDS modulator-demodulator 192;
Described RBDS192 connects described microcontroller 18 and described frequency modulation/amplitude modulation transmitter 14.
RDS, Radio Data System, promptly radio data system can be transmitted in the literal or the figure that show on phosphor screen or the LCDs, or supplies the character of printer prints, or transmits information such as computer software, switch control information, receiver auxiliary tuning.Execution mode of the present utility model adopts RDS, can make literal that the operation interface 20 of wireless headset shows or graphical information etc. be sent to portable terminal, and the interactive function that makes wireless headset and portable terminal is variation and functionalization more.
RBDS, be Radio Broadcast Data Standards, be the compatible technical standard of using of a kind of and above-mentioned RDS, its function is the same with RDS, all is to make the multiple interactive function that can realize comprising literal or graphical information between wireless headset and the portable terminal.
In embodiment of the present utility model, microcontroller 18 is used at RDS191 or RBDS192 transfer processes such as the Word message of operation interface 20 or graphical information being played the effect of control.
As shown in Figure 2, in example structure schematic diagram of the present utility model, RDS among the figure or BDS modulator-demodulator 19 comprise described RDS191 and described RBDS192.
In embodiment of the present utility model, described wireless headset antenna 11 can adopt ceramic antenna or wire-wound antenna, to guarantee the superperformance of antenna receiving signal.
As shown in Figure 3, the structural representation for portable terminal of the present utility model comprises: frequency modulation/amplitude modulation transreceiver 31 and voice modulation demodulator circuit 32, mobile terminal antenna 33;
Voice modulation demodulator circuit 32 is used for portable terminal user's sound is converted to audio signal, frequency modulation/amplitude modulation transreceiver 31 is converted into fm band signal or AM band signal with audio signal, and by mobile terminal antenna 33 fm band signal or AM band signal is sent to and the matching used wireless headset of portable terminal.After mobile terminal antenna 33 receives fm band signal or AM band signal, be converted to audio signal by frequency modulation/amplitude modulation transreceiver 31 earlier, and be converted to sound by voice modulation demodulator circuit 32.Certainly, the antenna of portable terminal of the present utility model also is used for receiving and launching the information that the communication network base station sends, and does not repeat them here.
Described voice modulation demodulator circuit 32 is connected with described frequency modulation/amplitude modulation transreceiver 31;
Described frequency modulation/amplitude modulation transreceiver 31 connects described mobile terminal antenna 33.
In another execution mode of the present utility model, described portable terminal also comprises: microcontroller 34 and radio data system RDS modulator-demodulator 351;
Described RDS modulator-demodulator 351 connects described microcontroller 34 and described frequency modulation/amplitude modulation transreceiver.
In another execution mode of the present utility model, described portable terminal also comprises: microcontroller 34 and wireless broadcast system RBDS modulator-demodulator 352;
Described RBDS modulator-demodulator 352 connects described microcontroller 34 and described frequency modulation/amplitude modulation transreceiver 352.
As shown in Figure 3, in example structure schematic diagram of the present utility model, the RDS/RBDS modulator-demodulator 35 among the figure comprises described RDS351 and described RBDS352.
The microcontroller 34 that adopts in the execution mode of portable terminal of the present utility model and the function of RDS/RBDS modulator-demodulator 35 are the same with function in the wireless headset, all are for the interactive function of realizing making wireless headset and portable terminal variation and functionalization more.
As shown in Figure 4, the structural representation for communication device of the present utility model comprises: wireless headset and portable terminal.Wherein, the function of each function element of wireless headset and portable terminal does not repeat them here as mentioned above.
In the execution mode of communication device of the present utility model, the frequency modulation/amplitude modulation transreceiver of portable terminal and wireless headset can be controlled by various control interfaces, as pass through iic bus, SPI (SerialPeripheral Interface, Serial Peripheral Interface), USB (Universal Serial Bus, universal serial bus structural), TX/RX serial ports and single line control etc.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1, a kind of micro radio earphone is characterized in that, comprises wireless headset antenna, low noise amplifier, high Q value automatic tuning loop, frequency modulation/amplitude modulation transreceiver and loud speaker;
Described low noise amplifier connects described high Q value automatic tuning loop;
Described frequency modulation/amplitude modulation transreceiver connects described high Q value automatic tuning loop and described voice modulation demodulator circuit, and connects described wireless headset antenna;
Described voice modulation demodulator circuit connects described loud speaker.
2, micro radio earphone according to claim 1 is characterized in that also comprise pick-up, described pick-up is connected with described voice modulation demodulator circuit.
3, micro radio earphone according to claim 1 is characterized in that, also comprises: microcontroller and radio data system RDS modulator-demodulator;
Described RDS connects described microcontroller and described frequency modulation/amplitude modulation transmitter.
4, micro radio earphone according to claim 1 is characterized in that, also comprises: microcontroller and wireless broadcast system RBDS modulator-demodulator;
Described RBDS connects described microcontroller and described frequency modulation/amplitude modulation transmitter.
5, micro radio earphone according to claim 1 is characterized in that described wireless headset antenna comprises:
Ceramic antenna, the wire-wound antenna.
6, a kind of portable terminal is characterized in that, comprising: frequency modulation/amplitude modulation transreceiver and voice modulation demodulator circuit, mobile terminal antenna;
Described voice modulation demodulator circuit is connected with described frequency modulation/amplitude modulation transreceiver;
Described frequency modulation/amplitude modulation transreceiver connects described mobile terminal antenna.
7, as portable terminal as described in the claim 6, it is characterized in that, also comprise: microcontroller and radio data system RDS modulator-demodulator;
Described RDS modulator-demodulator connects described microcontroller and described frequency modulation/amplitude modulation transreceiver.
8, as portable terminal as described in the claim 6, it is characterized in that, also comprise: microcontroller and wireless broadcast system RBDS modulator-demodulator;
Described RBDS modulator-demodulator connects described microcontroller and described frequency modulation/amplitude modulation transreceiver.
9, a kind of communication device is characterized in that, comprises wireless headset and portable terminal;
Described micro radio earphone comprises: wireless headset antenna, low noise amplifier, high Q value automatic tuning loop, frequency modulation/amplitude modulation transreceiver, voice modulation demodulator circuit and loud speaker;
Described low noise amplifier connects described high Q value automatic tuning loop;
Described frequency modulation/amplitude modulation transreceiver connects described high Q value automatic tuning loop and described voice modulation demodulator circuit, and connects described wireless headset antenna;
Described voice modulation demodulator circuit connects described loud speaker;
Described portable terminal comprises: frequency modulation/amplitude modulation transreceiver and voice modulation demodulator circuit, mobile terminal antenna;
Described voice modulation demodulator circuit is connected with described frequency modulation/amplitude modulation transreceiver;
Described frequency modulation/amplitude modulation transreceiver connects described mobile terminal antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201280940U CN201234297Y (en) | 2008-07-16 | 2008-07-16 | Micro wireless earphone, mobile terminal and communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201280940U CN201234297Y (en) | 2008-07-16 | 2008-07-16 | Micro wireless earphone, mobile terminal and communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201234297Y true CN201234297Y (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201280940U Expired - Lifetime CN201234297Y (en) | 2008-07-16 | 2008-07-16 | Micro wireless earphone, mobile terminal and communication device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201234297Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042490A1 (en) * | 2018-08-30 | 2020-03-05 | 歌尔股份有限公司 | Earphone far-field interaction method, earphone far-field interaction accessory, and wireless earphone |
-
2008
- 2008-07-16 CN CNU2008201280940U patent/CN201234297Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020042490A1 (en) * | 2018-08-30 | 2020-03-05 | 歌尔股份有限公司 | Earphone far-field interaction method, earphone far-field interaction accessory, and wireless earphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUAWEI DEVICE CO., LTD. Free format text: FORMER NAME: SHENZHEN HUAWEI TECHNOLOGY CO. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee after: Huawei Device Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Shenzhen Huawei Communication Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171109 Address after: Metro Songshan Lake high tech Industrial Development Zone, Guangdong Province, Dongguan City Road 523808 No. 2 South Factory (1) project B2 -5 production workshop Patentee after: HUAWEI terminal (Dongguan) Co., Ltd. Address before: 518129 Longgang District, Guangdong, Bantian HUAWEI base B District, building 2, building No. Patentee before: Huawei Device Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |
|
| CX01 | Expiry of patent term |