CN203180922U - Wireless earphone system based on near field electromagnetic induction - Google Patents
Wireless earphone system based on near field electromagnetic induction Download PDFInfo
- Publication number
- CN203180922U CN203180922U CN2012207047626U CN201220704762U CN203180922U CN 203180922 U CN203180922 U CN 203180922U CN 2012207047626 U CN2012207047626 U CN 2012207047626U CN 201220704762 U CN201220704762 U CN 201220704762U CN 203180922 U CN203180922 U CN 203180922U
- Authority
- CN
- China
- Prior art keywords
- antenna
- near field
- radio frequency
- electromagnetic induction
- field electromagnetic
- 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 - Lifetime
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Headphones And Earphones (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
The utility model relates to an earphone set used for audio presentations through wireless transmission. The wireless earphone system based on near field electromagnetic induction includes at least one wireless earphone and a relay device, wherein the wireless earphone includes a first antenna, a first radio frequency transceiver, a first microprocessor, a first storage and a sound output device. The first microprocessor is connected with the first radio frequency transceiver, a first storage and the sound output device and the first radio frequency transceiver is connected with the first antenna. The relay device includes a second antenna, a second radio frequency transceiver, a second microprocessor, a second storage and an audio equipment interface device. The second microprocessor is connected with the second radio frequency transceiver, the second storage and the audio equipment interface. The second radio frequency transceiver is connected with the second antenna. The wireless earphone system based on near field electromagnetic induction adopts a near field electromagnetic induction transceiver chip with extremely low power consumption and a three-dimensional antenna, bidirectional data communication and high-quality audio transmission are realized.
Description
Technical field
The utility model relates to a kind of Headphone device that audio frequency is play that is used for by wireless transmission, relates in particular to the wireless headphone system that adopts the near field electromagnetic induction technology.
Background technology
Wireless headset adopts electromagnetic wave replacement lead to carry out transmission of audio signals.Modulate through radio frequency transceiver in the transmitting terminal audio signal, send to form of electromagnetic wave in the Headphone device of receiving terminal.Divide according to Wireless transmission mode, wireless headset mainly contains: (1) bluetooth earphone; (2) adopt other carrier frequencies at the earphone of the wireless transmission protocol of 2.4GHz or 900MHz scope; (3) frequency modulation or amplitude modulation earphone; (4) Infrared earphone etc.The near field electromagnetic induction, as its name suggests, the mode of employing electromagnetic induction realizes the transmission of wireless signal, its outstanding feature comprises that transmission range is short, transmission rate is low, the power consumption of receiving terminal is extremely low, be mainly used in RFID(Radio Frequency Identification Devices at present, radio frequency identification equipment).Current, the earphone system that adopts electromagnetic induction is also arranged, as electromagnetic induction hearing aids and covert-channel earphone etc.
These systems all are by the direct electromagnetic coupled of audio signal or adopt amplitude modulation(PAM) (Amplitude Modulation, AM) the electromagnetic coupled mode of [1].Its subject matter is: (1) can only carry out one-way audio and the transfer of data from the transmitting terminal to the receiving terminal; (2) transmitting terminal must adopt the bigger inductance neck ring of volume just can carry out stable audio data transmission; (3) because the restriction of transmission rate makes the frequency band of audio signal can only reach 4KHz, can't realize the high-quality audio frequency transmission of higher frequency range.
The utility model content
In order to solve the problems of the technologies described above, the wireless headphone system that the utility model proposes a kind of near field electromagnetic induction adopts near field electromagnetic induction transponder chip and dimensional antenna, audio frequency and data signal modulation to the carrier wave between the 0.1MHz-15MHz, are realized the transmission of two-way data communication and high-quality audio frequency.The wireless headphone system of a kind of near field electromagnetic induction of the present utility model, comprise at least one wireless headset and trunking, wherein said wireless headset comprises first antenna, first radio frequency transceiver, first microprocessor, first memory, basic modules such as voice output, also comprise optional modules such as first acoustic input dephonoprojectoscope and first human-computer interface device, described first microprocessor respectively with described first radio frequency transceiver, first memory, voice output, first acoustic input dephonoprojectoscope is connected with first human-computer interface device, and described first antenna is connected with described first radio frequency transceiver; Described trunking comprises second antenna, second radio frequency transceiver, second microprocessor, second memory, basic modules such as audio frequency apparatus interface arrangement, also comprise optional modules such as second acoustic input dephonoprojectoscope and second human-computer interface device, described second microprocessor respectively with described second radio frequency transceiver, second memory, the audio frequency apparatus interface arrangement, second acoustic input dephonoprojectoscope is connected with second human-computer interface device, described second antenna is connected with described second radio frequency transceiver, and described audio frequency apparatus interface arrangement is by wired or wireless mode external audio frequency equipment.
Further, described first radio frequency transceiver and second radio frequency transceiver are all near field electromagnetic induction (NFMI) transceiver.
Further, described first antenna is ferrite-rod antenna; Described second antenna is intersected by two and above ferrite-rod antenna and constitutes.
Further, the carrier frequency of described near field electromagnetic induction (NFMI) transceiver is between 0.1MHz-15MHz.
Further, described wireless headset can comprise a plurality of earphones; In the communication distance scope, a plurality of earphones and trunking can adopt matching method to carry out networking; Can carry out radio communication between left ear with identical network address sign and the auris dextra wireless headset, have between wireless headset that the identical network address identifies and the trunking and can carry out radio communication.
Further, described audio frequency apparatus interface arrangement is by wired or wireless mode external audio frequency equipment; Described wired mode includes but not limited to USB and 3.5 audio interface etc.; Described wireless mode includes but not limited to Bluetooth communication etc.; Described audio frequency apparatus includes but not limited to mobile phone, intercom, panel computer and MP3 etc.
Further, described first acoustic input dephonoprojectoscope is microphone, can also comprise the audio frequency inductance coil; Described second acoustic input dephonoprojectoscope is microphone, can also comprise the audio frequency inductance coil.
Further, described first human-computer interface device includes but not limited to implementations such as button, switch, knob and speech recognition circuit; Described second human-computer interface device includes but not limited to that button, switch, knob, touch-screen and speech recognition circuit etc. are implementations.
Further, described voice output is receiver, is used for the signal of telecommunication is converted into voice signal.
Further, first radio frequency transceiver, first microprocessor and first memory can integratedly be encapsulated as same chip; Also can be that first microprocessor and first memory are integrated be encapsulated as same chip, and first radio frequency transceiver is encapsulated as a chips separately; Also can be that first radio frequency transceiver, first microprocessor and first memory are packaged into chip respectively separately.
Further, second radio frequency transceiver, second microprocessor and second memory can integratedly be encapsulated as same chip; Also can be that second microprocessor and second memory are integrated be encapsulated as same chip, and second radio frequency transceiver is encapsulated as a chips separately; Also can be that second radio frequency transceiver, second microprocessor and second memory are packaged into chip respectively separately.
Further, described first microprocessor has annex on a plurality of preposition amplifications and Peripheral Interface, the internal clocking/power management/sheets such as timer such as A/D conversion, digital signal processor kernel, internal storage, D/A conversion and audio frequency power amplifier, GPIO/I2C/SPI.Described first microprocessor loads and operation acoustic processing program from described first memory.
The utility model compared with prior art, has following advantage by adopting technique scheme:
(1) adopt high-frequency carrier signal to avoid the interference of low frequency signals such as power frequency, automobile engine;
(2) adopt high-frequency carrier signal and 3D antenna technology, significantly reduced the antenna size of trunking end, avoid using the big antenna of inductance neck ring form;
(3) networking mode of address designation Network Based has been realized between the wireless headset and the two-way communication of the audio signal between wireless headset and the trunking and data-signal.This wireless earphone device can be widely used in hearing aids, covert-channel earphone and the consumer wireless headset product.
Description of drawings
Fig. 1 is the structural representation of embodiment of the present utility model;
Fig. 2 is the inductance coil antenna schematic diagram of the wireless headset of embodiment of the present utility model;
Fig. 3 is the three-dimensional inductance coil antenna schematic diagram of the trunking of embodiment of the present utility model.
Embodiment
Now with embodiment the utility model is further specified by reference to the accompanying drawings.
As a specific embodiment, as shown in Figure 1, the wireless headphone system of a kind of near field electromagnetic induction of the present utility model, comprise wireless headset 1, wireless headset 2 and trunking 3, wherein said wireless headset 1 comprises NFMI transceiver 11, antenna 15, microprocessor 12, memory 13, receiver 14, button 16 and microphone 17, described microprocessor 12 respectively with described NFMI transceiver 11 and 13 two-way connections of memory, the audio frequency power amplifier output pin of described microprocessor 12 is connected with described receiver 14, described button 16 is connected with the GPIO pin of described microprocessor 12, described microphone 17 is connected with the A/D pin of described microprocessor 12, and described NFMI transceiver 11 is connected with described antenna 15; Described wireless headset 2 comprises NFMI transceiver 21, antenna 25, microprocessor 22, memory 23, receiver 24, button 26 and microphone 27, described microprocessor 22 respectively with described NFMI transceiver 21 and 23 two-way connections of memory, the audio frequency power amplifier output pin of described microprocessor 22 is connected with described receiver 24, described button 26 is connected with the GPIO pin of described microprocessor 22, described microphone 27 is connected with the A/D pin of described microprocessor 22, and described NFMI transceiver 21 is connected with described antenna 25; Described trunking 3 comprises NFMI transceiver 31, antenna 38, microprocessor 32, memory 33, bluetooth communication 34, button 35, microphone 36.Described microprocessor 32 respectively with described NFMI transceiver 31, memory 23 and 34 two-way connections of bluetooth communication, described button 26 is connected with the GPIO pin of described microprocessor 32, described microphone is connected with the A/D pin of described microprocessor 32, described NFMI transceiver 31 is connected with described antenna 38, described bluetooth communication 34 and have between the mobile phone 37 of Bluetooth function and carry out wireless audio frequency and transfer of data by Bluetooth protocol.
Described wireless headset 1 is set to left ear and auris dextra respectively with the device id of described wireless headset 2, described wireless headset 1 is set to 1 respectively with the network ID of described wireless headset 2, carries out wireless audio frequency and transfer of data by the NFMI agreement between described wireless headset 1 and the described wireless headset 2; The network ID of described trunking 3 also is set to 1, can carry out unidirectional ANTENN AUDIO and transfer of data to wireless headset 1 and wireless headset 2 simultaneously by the NFMI agreement.
Described NFMI transceiver 11, NFMI transceiver 21 and NFMI transceiver 31 are demodulated into baseband signal with the radiofrequency signal of antenna 15, antenna 25 and antenna 38 receptions and with it respectively; Also fundamental frequency signal is modulated to radiofrequency signal and outputs to antenna 15, antenna 25 and antenna 38 respectively, and be converted to electromagnetic wave signal in the space by antenna.Described baseband signal comprises audio signal and data-signal.Above-mentioned arbitrary NFMI transceiver 11,21,31 and the operating frequency of antenna be 10.579MHz.Described antenna 15 and antenna 25 as shown in Figure 2, are ferrite-rod antenna.Described antenna 38 as shown in Figure 3, is made of the ferrite-rod antenna of two square crossings.Described NFMI transceiver 31 has bigger power output and the receiving sensitivity of Geng Gao, and described antenna 38 has bigger size, to realize farther wireless transmission distance.
Described microprocessor 12 and described microprocessor 22 have annex on a plurality of preposition amplifiers and Peripheral Interface, the internal clocking/power management/sheets such as timer such as A/D conversion, digital signal processor kernel, internal storage, D/A conversion and power amplifier, GPIO/I2C/SPI respectively.Described microprocessor 12 and described microprocessor 22 load respectively and run memory 13 and memory 23 in the acoustic processing program.The described acoustic processing program of present embodiment is: the radiofrequency signal that voice signal collects analog electrical signal or carries audio signal through microphone obtains analog electrical signal through antenna and the demodulation of NFMI transceiver, described analog electrical signal through preposition amplification and A/D conversion, obtains digital audio and video signals again; Then digital audio and video signals is carried out successively that audio mixing, filtering, many sub-band division, noise suppressed, feedback management, multi-channel wide dynamic range compression, frequency response equilibrium, volume are regulated, many subbands are comprehensive and obtain amplifying based on the automatic gain control processing such as (AGCo) of output after digital audio and video signals; At last the digital audio and video signals that amplifies is carried out D/A conversion and power amplification, drive receiver and carry out the sound broadcast.Described acoustic processing program response button 16 or button 26 GPIO interrupt to realize that program schema switches; The base-band data signal through antenna and the demodulation of NFMI transceiver is handled in described acoustic processing process analysis, and carries out volume increase and decrease and program schema handover operation according to the instruction of data-signal.
Described microprocessor 32 has annex on Peripheral Interface, the internal clocking/power management/sheets such as timer such as a plurality of A/D conversions, micro-processor kernel, internal storage, GPIO/I2C/SPI.Acoustic processing program in described microprocessor 32 loadings and the run memory 33.Acoustic processing program in the described memory 33 of present embodiment is: the Bluetooth signal that voice signal collects analog electrical signal or carries audio signal through microphone 35 obtains analog electrical signal through bluetooth communication 34 demodulation, described analog electrical signal through the A/D conversion, obtains digital audio and video signals again; Then digital audio and video signals is carried out successively processing such as audio mixing, filtering and automatic volume control and obtain digital audio and video signals to be exported; Digital audio and video signals that at last will be to be exported outputs to NFMI transceiver 31, is converted to electromagnetic wave signal in the space through NFMI transceiver 31 modulation and antenna 38.The GPIO of described acoustic processing program response button 35 interrupts generating the base-band data signal that characterizes volume increase and decrease and program schema switching, again base-band data signal is outputed to NFMI transceiver 31, be converted to electromagnetic wave signal in the space through NFMI transceiver 31 modulation and antenna 38.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in not breaking away from the spirit and scope of the present utility model that appended claims limits; can make a variety of changes the utility model in the form and details, be protection range of the present utility model.
Claims (10)
1. the wireless headphone system of near field electromagnetic induction, it is characterized in that: comprise at least one wireless headset and trunking, wherein said wireless headset comprises first antenna, first radio frequency transceiver, first microprocessor, first memory, voice output, described first microprocessor is connected with voice output with described first radio frequency transceiver, first memory respectively, and described first radio frequency transceiver is connected with described first antenna; Described trunking comprises second antenna, second radio frequency transceiver, second microprocessor, second memory and audio frequency apparatus interface arrangement, described second microprocessor is connected with described second radio frequency transceiver, second memory and audio frequency apparatus interface arrangement respectively, and described second radio frequency transceiver is connected with described second antenna.
2. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described first radio frequency transceiver is near field electromagnetic induction transceiver.
3. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described second radio frequency transceiver is near field electromagnetic induction transceiver.
4. according to the wireless headphone system of claim 2 or 3 described a kind of near field electromagnetic inductions, it is characterized in that: the carrier frequency of described near field electromagnetic induction transceiver is between 0.1MHz-15MHz.
5. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described first antenna is ferrite-rod antenna, is connected with first radio frequency transceiver.
6. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1 is characterized in that: described second antenna is intersected by two and above ferrite-rod antenna and constitutes, and is connected with second radio frequency transceiver.
7. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described audio frequency apparatus interface arrangement is by wired or wireless mode external audio frequency equipment.
8. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described wireless headset also comprises first acoustic input dephonoprojectoscope, described first acoustic input dephonoprojectoscope is connected with described first microprocessor, is used for voice signal is converted to the signal of telecommunication.
9. the wireless headphone system of a kind of near field electromagnetic induction according to claim 1, it is characterized in that: described trunking also comprises second acoustic input dephonoprojectoscope, described second acoustic input dephonoprojectoscope is connected with described second microprocessor, is used for voice signal is converted to the signal of telecommunication.
10. according to the wireless headphone system of claim 1,2,3,5,6,7,8 or 9 described a kind of near field electromagnetic inductions, it is characterized in that: described voice output is receiver, is used for the signal of telecommunication is converted into voice signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207047626U CN203180922U (en) | 2012-12-19 | 2012-12-19 | Wireless earphone system based on near field electromagnetic induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207047626U CN203180922U (en) | 2012-12-19 | 2012-12-19 | Wireless earphone system based on near field electromagnetic induction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180922U true CN203180922U (en) | 2013-09-04 |
Family
ID=49077576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207047626U Expired - Lifetime CN203180922U (en) | 2012-12-19 | 2012-12-19 | Wireless earphone system based on near field electromagnetic induction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203180922U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763027A (en) * | 2014-02-08 | 2014-04-30 | 余求是 | Window talkback device and method of infrared carrier wave transmission signal based on powering of magnetic induction |
| CN107465970A (en) * | 2016-06-03 | 2017-12-12 | 恩智浦有限公司 | Equipment for voice communication |
| CN110098848A (en) * | 2018-01-30 | 2019-08-06 | 恩智浦有限公司 | Radio network device |
| US10616750B2 (en) | 2018-01-04 | 2020-04-07 | Nxp B.V. | Wireless communication device |
-
2012
- 2012-12-19 CN CN2012207047626U patent/CN203180922U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103763027A (en) * | 2014-02-08 | 2014-04-30 | 余求是 | Window talkback device and method of infrared carrier wave transmission signal based on powering of magnetic induction |
| CN103763027B (en) * | 2014-02-08 | 2016-04-27 | 余求是 | A kind of window talkback apparatus and method of infrared carrier transit signal of powering based on magnetic induction |
| CN107465970A (en) * | 2016-06-03 | 2017-12-12 | 恩智浦有限公司 | Equipment for voice communication |
| CN107465970B (en) * | 2016-06-03 | 2020-08-04 | 恩智浦有限公司 | Apparatus for voice communication |
| US10616750B2 (en) | 2018-01-04 | 2020-04-07 | Nxp B.V. | Wireless communication device |
| CN110098848A (en) * | 2018-01-30 | 2019-08-06 | 恩智浦有限公司 | Radio network device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107318062B (en) | A kind of low-power consumption one drag two bluetooth headset | |
| US9215536B2 (en) | Earphone device having integrated antenna | |
| CN106101901A (en) | A kind of earphone and method thereof being realized stereo output by near-field communication | |
| WO2012139344A1 (en) | Nfc dual-mode mobile terminal and communication method thereof | |
| CN203608193U (en) | Hand-held short-wave radio station based on radio frequency digitalization | |
| CN203180922U (en) | Wireless earphone system based on near field electromagnetic induction | |
| CN104023302A (en) | Programmable digital hearing aid system and method thereof | |
| CN205725981U (en) | A kind of mobile phone possessing digital-to-analogue intercom function | |
| CN201590875U (en) | Speaker system and electronic device using same | |
| CN204425599U (en) | A kind of earphone based on bone conduction technology | |
| CN203933885U (en) | A kind of Baffle Box of Bluetooth with NFC communication | |
| CN203278826U (en) | Audio wireless transmission system | |
| CN206004655U (en) | A kind of transmitter receiver based on 4G Internet phone-calling | |
| CN205754324U (en) | 2.4G voice system based on two-way frequency hopping | |
| CN201188660Y (en) | Television embedded with wireless sound transmitting device | |
| CN202736283U (en) | Electro-magnetic induction audio wireless connection system | |
| CN204014059U (en) | Programmable digital hearing assistance system | |
| CN208227019U (en) | A kind of mobile phone with digital cluster communication function | |
| CN209233816U (en) | Wireless communication module | |
| CN207473826U (en) | A kind of remote controler for supporting more radio frequency protocols | |
| CN203590427U (en) | Bluetooth acoustic system | |
| CN203387578U (en) | Multifunctional Bluetooth peripheral for mobile electronic equipment | |
| CN202906905U (en) | Bluetooth module | |
| CN203039855U (en) | Wireless earphone | |
| CN201032726Y (en) | Wireless networking card with FM function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: AUSTAR HEARING SCIENCE & TECHNOLOGY (XIAMEN) CO.,LTD. Assignor: XIAMEN LAA MEDICAL DEVICES Co.,Ltd. Contract record no.: 2015350000028 Denomination of utility model: Wireless earphone system based on near field electromagnetic induction Granted publication date: 20130904 License type: Exclusive License Record date: 20150421 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |