CN1741538A - Radio microphone device using mobile communication terminal and its specific realizing method - Google Patents

Radio microphone device using mobile communication terminal and its specific realizing method Download PDF

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Publication number
CN1741538A
CN1741538A CNA2005100004499A CN200510000449A CN1741538A CN 1741538 A CN1741538 A CN 1741538A CN A2005100004499 A CNA2005100004499 A CN A2005100004499A CN 200510000449 A CN200510000449 A CN 200510000449A CN 1741538 A CN1741538 A CN 1741538A
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CN
China
Prior art keywords
signal
bluetooth
mobile communication
communication terminal
amplifier
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Granted
Application number
CNA2005100004499A
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Chinese (zh)
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CN1741538B (en
Inventor
金享锡
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Inspur LG Digital Mobile Communications Co Ltd
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LG Electronics China Research and Development Center Co Ltd
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Publication of CN1741538A publication Critical patent/CN1741538A/en
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Publication of CN1741538B publication Critical patent/CN1741538B/en
Expired - Fee Related legal-status Critical Current
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/60Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6033Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
    • H04M1/6041Portable telephones adapted for handsfree use
    • H04M1/6058Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/3833Hand-held transceivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72412User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827Portable transceivers
    • H04B1/385Transceivers carried on the body, e.g. in helmets
    • H04B2001/3872Transceivers carried on the body, e.g. in helmets with extendable microphones or earphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/02Details of telephonic subscriber devices including a Bluetooth interface

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Human Computer Interaction (AREA)
  • Telephone Function (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transceivers (AREA)

Abstract

The invention relates to a radio microphone device using mobile communication terminal and its specific realizing method, comprising: mobile communication terminal of the bluetooth module transmitting microphone input audio frequency signal and keypad input control signal in the bluetooth style and receiver outputting the signal transmitted from the mobile communication terminal in the bluetooth style to the amplifier by demodulating. The invention can provide the wireless microphone for remotely controlling the volume output and balance used by the terminal so as to effectively reduce the wireless microphone system price.

Description

Utilize the radio microphone device and the specific implementation method thereof of mobile communication terminal
Technical field
The present invention relates to a kind of radio microphone device and specific implementation method thereof of utilizing mobile communication terminal, be specifically related to a kind of when adopting audio signal that bluetooth approach transmission receives from the mobile communication terminal microphone and control signal, make the bluetooth receiver module receive above-mentioned signal, to the microphone apparatus that utilizes mobile communication terminal and the specific implementation method thereof of amplifier (amp) output.
Background technology
Fig. 1 is the wireless microphone system schematic diagram according to conventional art.As shown in Figure 1, the wireless microphone system according to conventional art comprises: wireless microphone 1 or tie clip microphone 2; Reception is by the earphone 3 of the audio signal of wireless microphone 1 or 2 transmission of tie clip microphone; The amplifier 4 that amplification is exported by the audio signal of earphone output.
According to foregoing, wireless microphone 1 or tie clip microphone 2 are after the audio signal imported of frequency modulation (FM) demodulation, upload superfrequency (VHF) to the carrier transmission of hyperfrequency (UHF) wave band to earphone 3.And earphone 3 is got rid of noise for carry out filtering from the wireless signal of wireless microphone 1 and 2 receptions of tie clip microphone, extracts after original audio signal, is input to the audio input end of amplifier 4.And amplifier 4 is to amplify after the audio signal of being imported by audio input end, exports.
As mentioned above, according to the wireless microphone system needs of conventional art great number wireless microphone 1 or at a low price the transmitter 1 of tie clip microphone 2 configurations by wired connection ', 2 ', and use can receive the earphone 3 of FM restituted signal separately.And, use antenna diversity for improving tonequality, two antennas 3 of needs '.In addition, if adjust volume, the sense of equilibrium and the acoustics of amplifier, just need the user often to move to earphone 3 ends and adjusted.So, not only use very inconveniently according to the wireless microphone system of conventional art, also increased the expenditure of expense.
That is, the wireless microphone system drawback according to conventional art is:
The first, for wireless microphone system needs to buy separately the wireless words portion that send that is connected to microphone, therefore increased the expenditure of expense.
The second, for from wireless microphone to the earphone transmission signals, carry out the FM demodulation, use the transmission wave band between VHF and the UHF.Therefore, in order to improve tonequality, need to use the earphone that possesses 2 antennas.
The 3rd, above-mentioned wireless microphone system according to conventional art is the adjustment of being responsible for loud speaker by earphone, therefore adopts the user of wireless microphone to control volume adjustment etc. in order to make, and need move to earphone.
Summary of the invention
The present invention invents for the above-mentioned drawback that solves conventional art, the purpose of its invention is for a kind of radio microphone device and specific implementation method thereof of utilizing mobile communication terminal is provided, when mobile communication terminal sends audio signal and control signal by the Bluetooth communication mode, receive above-mentioned signal and pass through the amplifier output audio signal by earphone, and adjust volume, the sense of equilibrium and the sound equipment of amplifier according to amplifier control signal.
To achieve these goals, the radio microphone device that utilizes mobile communication terminal of the present invention comprises: possess the mobile communication terminal that sends the bluetooth module of microphone input audio signal and keypad input control signal by bluetooth approach; After the bluetooth approach signal of reception by described mobile communication terminal transmission, through separating the earphone of tuning amplifier output.
Described bluetooth module comprises: will be converted to bluetooth data packets and the first Bluetooth signal handling part exported by the audio signal of described microphone and keypad input and amplifier control signal; Analog-modulated is by the bluetooth data packets of described terminal Bluetooth signal processing part output, produces baseband signal and the first base band signal process portion that exports; To carrying out the RF portion that frequency raises up and changes the back and be converted to the output of RF signal by the baseband signal of described first base band signal process portion output.
Described earphone comprises: the RF conversion of signals that described terminal the one RF portion is received is the 2nd RF portion that baseband signal is exported; The second base band signal process portion that will be converted to the digital bluetooth bag by the baseband signal of described the 2nd RF portion input and export; Demodulation is by the digital bluetooth bag of described second base band signal process portion output, separating audio signals and amplifier control signal and the second Bluetooth signal handling part exported; The audio signal of described second Bluetooth signal handling part output is converted to after the analog signal, to the second Audio Signal Processing portion of the audio input end output of amplifier; Amplifier control signal handling part according to the amplifier control signal control amplifier driving of exporting by the described second Bluetooth signal handling part.
Described amplifier control signal can be the volume adjustment, the sense of equilibrium of amplifier adjust, in the setting of low sound function and releasing etc.And described control signal can according to keypad zone of mobile communication terminal move up and down key, the key that condenses comes input of control commands.For the control command of input amplifier, described mobile communication terminal can also comprise the user interface screen that amplifier is controlled to be purpose.
Described RF signal is the GFSK modulation signal.
Described RF signal is the IS band signal.
The specific implementation method of the radio microphone device of mobile communication terminal of utilizing of the present invention comprises: the microphone input audio signal of mobile communication terminal and keypad input control signal are converted to after the bluetooth data packets, with the bluetooth data packets transmission course of RF signal output; Reception is by after the RF signal that sends in the described bluetooth data packets transmission course, carries out demodulation and amplifier control procedure by amplifier output audio and control signal.
Described bluetooth data packets transmission course comprises: the microphone input audio signal of described mobile communication terminal and described keypad input control signal are converted to bluetooth data packets and first blue-teeth data packet generation stage of exporting; First baseband signal that will be converted to analog baseband signal in the bluetooth data packets of described blue-teeth data packet generation stage output and export produces the stage; To carrying out the frequency conversion that raises up by the baseband signal of described baseband signal generation stage output, the frequency of exporting with the RF signal translate phase that raises up; Send the raise up RF signal of RF signal of translate phase output of described frequency and send the stage.
Described amplifier control procedure comprises: receive from the RF signal reception stage of the RF signal of described bluetooth data packets transmission course transmission; By the frequency downconverts conversion, will become second baseband signal of baseband signal to produce the stage from the RF conversion of signals that described RF signal receiving course sends; The data-signal translate phase that converts the analog baseband signal of described second baseband signal generation stage output to the digital bluetooth bag and export; The processing stage of extracting second Bluetooth signal of described audio signal and RF control signal from the bluetooth data packets of described data-signal translate phase output; The amplifier control stage of output audio and vision signal by described second Bluetooth signal processing stage by amplifier output.
According to the present invention, mobile communication terminal can be convenient to the user with mobile phone, PDA etc. and carry, but also comprises all devices of carrying out message and data communication by mobile communications network.
Beneficial effect of the present invention is: the present invention possesses radio microphone device, is microphone thereby mobile communication terminal used, thereby saves the unlimited microphone expense of buying built-in great number transmitter separately.
And according to the present invention, owing to do not use the wave band between FM modulation and VHF and the UHF, and be to use the ISM wave band (Industrial Scientific Medicineband) of GFSK communication mode and 2.4Ghz, and need not to realize diversity antenna, also can received signal.Because it only uses the earphone that possesses a kind of antenna, has saved the extra-pay expenditure.
In addition, the microphone that only transmits audio signals in the present invention and the conventional art is different, but can carry out the transmission of packet.Therefore, produce the control signal of amplifier and be transferred to earphone at mobile communication terminal, thereby effectively control the operation of remote amplifier.
Description of drawings
Fig. 1 is the wireless microphone system schematic diagram according to conventional art;
Fig. 2 is the microphone apparatus structure chart that utilizes according to mobile communication terminal of the present invention;
Fig. 3 is the general internal structure block diagram of mobile communication terminal among Fig. 2;
Fig. 4 is the running flow chart of mobile communication terminal Bluetooth signal transmission among Fig. 2;
Fig. 5 is the internal structure block diagram of bluetooth earphone among Fig. 2;
Fig. 6 is the process flowchart that the bluetooth earphone recovers Bluetooth signal among Fig. 5.
The symbol description of accompanying drawing major part:
1: wireless microphone 1 ', 2 ': transmitter
2: tie clip microphone 3: earphone
4: amplifier 100: mobile communication terminal
200: bluetooth earphone 150: bluetooth module
152: the first base band signal process portions of 151: the first Bluetooth signal handling parts
153: the RF portions 201; The one RF portion
202: 203: the second Bluetooth signal handling parts of second phase base band signal process portion
204: the second Audio Signal Processing portions 205: amplifier control signal handling part
Embodiment
By following with reference to the accompanying drawing detailed description of the invention.
Fig. 2 is the radio microphone device system construction drawing that utilizes mobile communication terminal according to an embodiment of the invention.As shown in Figure 2, the radio microphone device that utilizes mobile communication terminal of one embodiment of the invention comprises: by bluetooth approach, convert message and data-signal to the RF signal and the mobile communication terminal 100 exported; After the RF signal of reception by 100 outputs of described mobile communication terminal, carry out demodulation and decompose according to multichannel, separating audio and control signal are to the bluetooth earphone 200 of amplifier output.
Preferentially, the RF signal of the communication between described mobile communication terminal 100 and the bluetooth earphone 200 is industry science doctor (ISM:Industrial Scientific Medical) wave band (the wave band high-frequency signal of 2.402GHz~2.480GHz) by Gaussian Frequency Shift Keying (GFSK:Guassian Frequency Shift Keying) modulation.
In the specification of described bluetooth, 1.0 versions are ISM (IndustrialScientific Medical) wave band (2.402GHz~2.480GHz) of 2.4GHz wave band; Adopt the transmission speed of 1Mbps and the frequency bounce-back mode (79/23hop, 1600hop/sec) that prevents to disturb; With low consumption electric power (wait state 0.3mA, the highest 30mA during transceiver), transmission range can reach 10m and according to the 100m of option; Class1,2,3 transmitted power (being respectively 100mW, 2.5mW, 1mW); Adopt GFSK (GuassianFrequency Shift Keying) modulation system; Support the volume (A-Law, u-Law PCM, CVSD) of 3 channels; Can realize one to one or the connection of a pair of several modes.
The purpose of setting forth described bluetooth compliant is in order to illustrate according to Bluetooth function of the present invention, so it is not limited to the present invention.
Fig. 3 is the internal structure block diagram of mobile communication terminal among Fig. 2, and Fig. 4 is the process flowchart according to mobile communication terminal bluetooth approach transmission of audio and data-signal among described Fig. 3.
As shown in Figure 3, mobile communication terminal comprises key region portion 101; Microphone 112; Loud speaker 113; Be connected to key region portion 101, output is corresponding to the key signals handling part 111 by the control command of 101 input key signals of key region portion; Possess microphone of being connected to 112 and loud speaker 113, reach the audio signal of exporting by loud speaker 113 for audio signal by microphone 10 inputs, carry out analogue data conversion or digital simulation conversion, and carry out the control part (MSM) 110 of the first Audio Signal Processing portion 114 of recovering Audio Signal Processing such as compressed signal by speech coding and counter-rotating speech coding.
And, described key region portion 101 also comprises the microphone by operation key (not shown) operating mobile communication terminal, thereby will convert the bluetooth module 150 that the bluetooth form is exported to by the audio signal of mobile communication terminal Audio Signal Processing portion 114 inputs and amplifier 4 control signals of importing by key region portion 101 and key signals handling part 111.
Described bluetooth module 150 comprises the first Bluetooth signal handling part 151, the first base band signal process portion 152 and a RF portion 153.
The first Bluetooth signal handling part 151 is to become the packet of bluetooth approach to export with the audio conversion of importing by the first Audio Signal Processing portion 114 by the amplifier control signal that the key signals handling part 111 of control part 110 is imported.
The first base band signal process portion 152 is that the analog signal that will convert base band by the packet of the first Bluetooth signal handling part 151 output to is exported, and the downward modulation conversion is after the RF signal that the outside receives, modulating data and produce the packet data that possesses the bluetooth form, and be input to the first Bluetooth signal handling part 151.
The one RF portion 153 will be modulated into by the base-band analog signal that the first base band signal process portion 152 exports after the GFSK signal, and raising up to change by the execution frequency produces 2, after the 4Ghz ISM wave band high-frequency signal, sends to the outside.And the GFSK signal that receives from outside modulation 2,4Ghz ISM wave band high-frequency signal is by carrying out product rate downward modulation conversion, convert to after the baseband signal, outputing to the first base band signal process portion 152.
With reference to Fig. 3 and Fig. 4, describe the processing procedure that sends audio frequency and data controlling signal by Fig. 3 mobile communication terminal bluetooth approach in detail.
The user is microphone for mobile communication terminal is used, and when importing the microphone options button of key region portion 101, control part 110 is to drive bluetooth modules 150 (S100) by key signals handling part 111.
Carry out after the S100 process, the user passes through the microphone sound import, and can adjust the amplifier control signal of the volume and the tonequality of amplifier as required by the keypad input.At this moment, the first Audio Signal Processing portion 114 converts user's sound to the data audio signal, and import with bluetooth module 150, key signals handling part 111 is then by the amplifier control signal S110 of bluetooth module 150 inputs corresponding to key region portion 101 key assignments.At this moment, preferentially, the up and down arrow keys of keypad should use volume to adjust key etc.And, mobile communication terminal be control amplifier to LCD terminal output interface screen, be the control command of purpose thereby make the user by keypad input control amplifier.
The bluetooth module 150 first Bluetooth signal handling parts 151 that drive in the S110 process are for the adjustment of the amplifier volume of audio signal by 114 inputs of the first Audio Signal Processing portion and key region portion 101 inputs, in amplifier control signals such as the driving of bass woofer and termination carry out multiplexed after, with according to the packet data capsule of Bluetooth transmission mode and to the 152 output S120 of the first base band signal process portion.
Carry out after the S120 process, the first base band signal process portion 152 becomes analog data signal to produce after the base band RF signal by receiving bluetooth bag data transaction, to the 153 output S130 of a RF portion.
The one RF portion 153 receives base band RF signal in the S140 process, and frequency raises up and changes receiving baseband signal and produce after the GFSK modulated 2.4Ghz ISM wave band high-frequency signal, send to the outside by the antenna (not shown), thereby finish the audio frequency of mobile communication terminal of embedded with bluetooth module and the output procedure of amplifier control signal.
Fig. 5 is the internal structure block diagram of above-mentioned Fig. 3 bluetooth earphone 200.As shown in Figure 5, bluetooth earphone 200 comprises among Fig. 3: receive the 2nd RF portion 201 by RF portion 153 a RF signal that sends; Be arranged at the second base band signal process portion 202 of the 2nd RF portion 201 outputs; Be arranged at the second Bluetooth signal handling part 203 of the second base band signal process portion, 202 outputs; Be connected to the second Audio Signal Processing portion 204 and the amplifier control signal handling part 200 of the second Bluetooth signal handling part, 203 outputs.And the output of the second Audio Signal Processing portion 204 and amplifier control signal handling part 205 is to be input to sub-(not shown) of the audio input end of amplifier 4 and control terminal (not shown) respectively.
Fig. 6 is the signal processing flow chart that possesses the bluetooth earphone 200 of above-mentioned Fig. 5 structure.With reference to above-mentioned Fig. 6, describe the running of Fig. 5 medium blue tooth earphone 200 in detail.
At first, the 2nd RF portion 201 receives after the RF signal S200 of mobile communication terminal the one RF portion 153 transmissions, carry out frequency downconverts conversion and the demodulation of GFSK signal, the packet of hurdle tooth is converted to after the baseband signal, to the baseband signal S210 of the second base band signal process portion, 202 output conversions.
Carry out after the S210 process, after the packet data that the baseband signal that 202 generations of the second base band signal process portion are exported by the 2nd RF portion 201 with the bluetooth approach capsule according to the analogue data conversion forms, to the second Bluetooth signal handling part, 203 output S220.
Carry out after the S220 process, the second Bluetooth signal handling part 203 is after the packet data of capsule is recovered audio signal and amplifier control signal, to the second Audio Signal Processing portion, 204 output audio signals, to amplifier control signal handling part 205 output amplifier control signal S240 then.
Carry out after the S240 process, the second Audio Signal Processing portion 204 is after the audio signal of analog-converted by 203 inputs of the second Bluetooth signal handling part, to the audio input end input of amplifier 4, and the audio signals of having amplified by amplifier output.And, amplifier control signal handling part 205 is after the amplifier control signal that receives by 203 inputs of the second Bluetooth signal handling part, to amplifier control signal such as the driving of amplifier 4 output volume adjustment, middle bass woofer and termination, sense of equilibrium's adjustment and control amplifier S250.
Carry out after the S250 process, judge whether to exist RF signal S260 by mobile communication terminal 100 transmission.If there is the RF signal, just move to the S210 process, carry out processing procedure repeatedly, and when not having the RF signal, then according to bluetooth earphone 200 termination signal processing procedures.
In sum, the present invention possesses radio microphone device, is microphone thereby mobile communication terminal used, thereby saves the unlimited microphone expense of buying built-in great number transmitter separately.And according to the present invention, owing to do not use the wave band between FM modulation and VHF and the UHF, and be to use the ISM wave band (Industrial Scientific Medicine band) of GFSK communication mode and 2.4Ghz, and need not to realize diversity antenna, also can received signal.Because it only uses the earphone that possesses a kind of antenna, has saved the extra-pay expenditure.In addition, the microphone that only transmits audio signals in the present invention and the conventional art is different, but can carry out the transmission of packet.Therefore, produce the control signal of amplifier and be transferred to earphone at mobile communication terminal, thereby effectively control the operation of remote amplifier.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.

Claims (8)

1. radio microphone device that utilizes mobile communication terminal is characterized in that comprising:
The mobile communication terminal that possesses the bluetooth module that sends microphone input audio signal and keypad input control signal;
After the audio signal and control signal of reception by described mobile communication terminal transmission, through separating the earphone of tuning amplifier output.
2. the radio microphone device that utilizes mobile communication terminal according to claim 1 is characterized in that, described bluetooth module comprises:
To convert bluetooth data packets to and the first Bluetooth signal handling part exported from the audio signal of described microphone and keypad input and amplifier control signal;
Analog-converted is from the bluetooth data packets of described first Bluetooth signal handling part output, produces baseband signal and the first base band signal process portion that exports;
Raise up and be transformed into a RF portion of RF signal output after the conversion carry out frequency by the baseband signal of described first base band signal process portion output.
3. the radio microphone device that utilizes mobile communication terminal according to claim 1 is characterized in that, described earphone comprises:
The RF conversion of signals that will receive from the described RF portion of described terminal becomes baseband signal and the 2nd RF portion that exports;
The second base band signal process portion that will convert the digital bluetooth packet data to from the baseband signal of described the 2nd RF portion input and export;
Demodulation is by the digital bluetooth bag data of described second base band signal process portion output, separating audio signals and amplifier control signal and the second Bluetooth signal handling part exported;
To convert to from the audio signal of described second Bluetooth signal handling part output after the analog signal, to the second Audio Signal Processing portion that audio input end of amplifier is exported;
Amplifier control signal handling part according to the amplifier control signal control amplifier driving of exporting by the described second Bluetooth signal handling part.
4. according to the radio microphone device that utilizes mobile communication terminal any in the claim 1 to 3, it is characterized in that: described RF signal is the GFSK modulation signal.
5. the radio microphone device that utilizes mobile communication terminal according to claim 4 is characterized in that: described RF signal is the IS band signal.
6. specific implementation method of utilizing the radio microphone device of mobile communication terminal is characterized in that comprising:
The microphone input audio signal of mobile communication terminal and keypad input control signal are converted after the bluetooth data packets data to the bluetooth data packets transmission course that sends to the RF signal;
After the RF signal that reception is sent by described bluetooth data packets transmission course, demodulation and to the amplifier control procedure of amplifier output audio signal and control signal.
7. the specific implementation method of utilizing the radio microphone device of mobile communication terminal according to claim 6 is characterized in that, described bluetooth data packets transmission course comprises:
The first blue-teeth data packet generation stage that converts the microphone input audio signal of described mobile communication terminal and described keypad input control signal to bluetooth data packets and export;
First baseband signal that will convert analog baseband signal to by the bluetooth data packets of described blue-teeth data packet generation stage output and export produces the stage;
Frequency raise up conversion by the baseband signal of described baseband signal generation stage output to the frequency of the RF signal output translate phase that raises up;
Transmission sends the stage by the described frequency RF signal that translate phase exported the RF signal that raises up.
8. the specific implementation method of utilizing the radio microphone device of mobile communication terminal according to claim 6 is characterized in that, described amplifier control procedure comprises:
Reception receives the stage by the RF signal that described bluetooth data packets transmission course is sent the RF signal;
By the frequency downconverts conversion, will become second baseband signal of baseband signal to produce the stage by the RF signal transition that described RF signal receiving course sends;
The data-signal translate phase that will convert the digital bluetooth bag to by the analog baseband signal of described second baseband signal generation stage output and export;
The processing stage of extracting second Bluetooth signal of described audio signal and amplifier control signal from the bluetooth data packets of described data-signal transfer process output;
The audio frequency of exporting by described second Bluetooth signal processing stage to amplifier output and the amplifier control stage of vision signal.
CN2005100004499A 2004-08-24 2005-01-11 Radio microphone device using mobile communication terminal and its specific realizing method Expired - Fee Related CN1741538B (en)

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KR1020040066811A KR100661548B1 (en) 2004-08-24 2004-08-24 A wireless microphone apparatus using a mobile communication terminal with a bluethooth module and a bluetooth receiver and the embodiment method thereof
KR10-2004-0066811 2004-08-24
KR1020040066811 2004-08-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101102338B (en) * 2006-07-07 2011-07-27 鸿富锦精密工业(深圳)有限公司 Mobile phone with earphone function
WO2014090040A1 (en) * 2012-12-11 2014-06-19 Tencent Technology (Shenzhen) Company Limited Method of using a mobile device as a microphone, method of audio playback, and related device and system
CN105007103A (en) * 2015-05-28 2015-10-28 吴克琼 Bluetooth communication method mixedly coding control signal and voice signal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101177660B1 (en) * 2010-01-20 2012-08-27 최인주 Vehicle management system through radio relay of vehicle remote controller

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0152473B1 (en) * 1995-07-04 1998-11-02 김광호 Method of realizing karaoke and cordless mic functions in telephone
CN1324033A (en) * 2000-05-15 2001-11-28 张越苏 Wearable radio multimedia miniature computer with Chinese LINUX operation system
JP3589952B2 (en) 2000-06-20 2004-11-17 松下電器産業株式会社 Communication system and communication method thereof, wireless microphone communication system, wireless microphone, and wireless microphone receiving device
JP2002156985A (en) 2000-11-21 2002-05-31 Funai Electric Co Ltd Reproduction system, recording and reproduction device, and wireless microphone
KR20010074285A (en) * 2001-05-04 2001-08-04 심현보 Remote handset used telephone and microphone for computer of speech recognition
CN1173593C (en) * 2001-12-25 2004-10-27 杭州波导软件有限公司 Mobile telephone and its communication method
US7457424B2 (en) * 2002-09-20 2008-11-25 Honda Giken Kogyo Kabushiki Kaishi Electronic volume device and remote controller thereof
CN2631171Y (en) * 2003-06-05 2004-08-04 洪朱在 Blutooth hand-free receiver module structure
CN1233196C (en) * 2003-06-05 2005-12-21 怡利电子工业股份有限公司 Hand-free earphone for mobile phone and external blue-tooth module

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101102338B (en) * 2006-07-07 2011-07-27 鸿富锦精密工业(深圳)有限公司 Mobile phone with earphone function
WO2014090040A1 (en) * 2012-12-11 2014-06-19 Tencent Technology (Shenzhen) Company Limited Method of using a mobile device as a microphone, method of audio playback, and related device and system
CN105007103A (en) * 2015-05-28 2015-10-28 吴克琼 Bluetooth communication method mixedly coding control signal and voice signal

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KR100661548B1 (en) 2006-12-27
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