KR200281074Y1 - Hands-freed device having voice recognition function - Google Patents

Abstract

The present invention relates to a hands-free device having a voice recognition function, and includes a main device for storing a reference voice of a user in a cradle in which a mobile phone is mounted and outputting a dial signal by recognizing it when the user's voice is input later. By inserting into a user's ear and communicating a voice signal wirelessly with the main device, the ear microphone is configured to allow a user to make a mobile phone call as a voice, so that the user can dial and transmit and receive a wireless voice recognition function without operating the mobile phone. The present invention relates to a hands-free device having a voice recognition function to eliminate eavesdropping and frequency interference by applying an ultra-small ear microphone and high-tech new technology by a high density integrated circuit design.

Description

Hands-freed device having voice recognition function

The present invention relates to a hands-free device, and in particular, a main device for storing a user's reference voice in a cradle where a mobile phone is mounted and recognizing it when the user's voice is input later and outputting a dial signal. By configuring the ear microphone which allows the user to make a mobile phone call as a voice by communicating a voice signal wirelessly with the main device, the user can conveniently dial and transmit / receive based on the wireless voice recognition function without manipulating the mobile phone. The present invention relates to a hands-free device having a voice recognition function to eliminate eavesdropping and frequency interference by applying an ultra-small ear microphone and a high-tech new technology by a high density integrated circuit design.

Currently, mobile phones are being used by many people due to the advantage of being able to talk wirelessly, and the user population is gradually spreading. However, if the mobile phone is used while driving, the concentration of driving is not only dispersed, but in order to make a phone call, the user must press a number button installed on the mobile phone. In order to solve such a problem, a hands-free device for allowing a user to talk without lifting a mobile phone is provided. Conventional hands-free devices have been developed for various types of wired and wireless hands-free systems, such as a method of embedding the hands-free device in the body of a mobile phone or using an infrared ray and a radio of a car body. However, there is a problem in that the direction and security of the vehicle are insufficient.

Accordingly, the present invention for solving the above problems is to store the user's reference voice in the cradle where the mobile phone is mounted, and to recognize the next time the user's voice is input, and to output the dial signal by recognizing it when the user's voice is input, By plugging in and using a wireless microphone to communicate with a voice signal wirelessly with the main device to allow a user to make a mobile phone call as a voice, the user can conveniently dial and transmit / receive the wireless voice recognition function without operating the mobile phone. It is an object of the present invention to provide a hands-free device having a voice recognition function that can eliminate eavesdropping and frequency interference by applying an ultra-small ear microphone and high-tech new technology by a high density integrated circuit design.

1 is a perspective view showing a cradle in which the main apparatus applied to the present invention is built.

Figure 2 is a perspective view of the ear microphone applied to the present invention.

Figure 3 is a block diagram showing the configuration of the main device applied to the present invention.

Figure 4 is a block diagram showing the configuration of the ear microphone applied to the present invention.

<Description of the symbols for the main parts of the drawings>

100: cell phone, 200: cradle,

201: connection part, 203: power jack,

300: main unit, 400: ear microphone,

402: microphone, 403: earphone cap,

404: earrings, 405: switch,

1 to 4 illustrate the present invention for achieving the above object and the preferred embodiment of the present invention with reference to the drawings as follows.

First, the configuration of the subject innovation, the mobile phone 100 capable of wireless communication; Mounted inside the vehicle, the mobile phone 100 is detachable, the cradle 200 is formed with a connection portion 201 is connected to the mobile phone 100 to enable communication between the mobile phone 100 and the main device 300 Wow; Is mounted inside the cradle communicates with the ear microphone 400 as a predetermined frequency, and in the recording mode to store the user's voice input wirelessly through the ear microphone 400 as a reference voice, after which the user to make a call When the spoken number is input through the microphone, the dial number is recognized by comparing with the stored reference voice, and the recognized dial number is transmitted to the mobile phone 100 through the connection unit 201 to make a call. Device 300; An earring 404 formed to be hooked to a user's ear is formed, and an earphone cap 403 is formed at the center of the earring 404 to be inserted into a user's ear hole, and converts the user's growth into an electrical signal. The speaker 415 is configured to convert the voice of the other party to the sound of the microphone 402, and the battery 401 for supplying the driving voltage is mounted and the speaker of the other party transmitted wirelessly from the main device 300 is mounted. Output through 415, the user's upbringing is composed of an ear microphone 400 to be transmitted to the other party by wireless transmission to the main device 300.

The main device 300 includes a first voice converter 302 which expands the voice signal of the other party's caller inputted from the mobile phone 100 through the connection unit 201 under the control of the first controller 310. The first mixer 303 mixes a predetermined local oscillation frequency with the voice signal output from the first voice converter 302, and the voice signal output from the first mixer 303 to the ear microphone 400. A first local transceiver unit 305 for wirelessly transmitting the user's voice signal transmitted from the microphone 400 to the second mixer 306, and a predetermined local portion in the audio signal input from the first transceiver unit 305. A second mixer 306 for mixing the oscillation frequency, a first intermediate frequency amplifier 307 for detecting an audio signal of the user by intermediate frequency amplifying the audio signal output from the second mixer 306, and a first intermediate The voice signal detected by the frequency amplifying unit 307 is expanded to obtain a connection through the connection unit 201. A second voice converter 308 for transmitting to the phone 100, a first level detector 309 for detecting the level of the voice signal output from the second voice converter 308, and the second voice converter Band filter 312 for filtering the voice signal output from the unit 308 for a predetermined band, and the voice signal and the voice pattern recognition unit corresponding to the number sound input through the A / D converter 313 in the recording mode And a first control unit 310 which recognizes the dial number by comparing the reference voice stored in the 314 and supplies a dial signal corresponding to the recognized dial number to the mobile phone 100 through the connection unit 201. The ear microphone 400 includes a third voice converter 407 for expanding a voice signal of the user output from the second microphone 402 under the control of the second controller 417, and the third voice converter. A third for mixing a predetermined local oscillation frequency with the audio signal output from the unit 407 The mixer 411 and the voice signal output from the third mixer 411 are transmitted to the first transceiver 305 of the main device 300 through an antenna, and transmitted from the first transceiver 305. A fourth transceiving unit 410 for receiving the voice signal of the other party and supplying it to the fourth mixer 411 and a fourth local mixing frequency mixed with the voice signal input from the second transmitting and receiving unit 410. A second intermediate frequency amplifier 412 and an intermediate frequency amplifier 412 for detecting an audio signal of the other party by amplifying the audio signal output from the mixer 411, the fourth mixer 411, and the second intermediate frequency amplifier 412. A fourth voice converter 413 which extends the detected voice signal from the voice signal 414 to the speaker 415 through an amplifier 414, and a second voice level detected by the voice converter 413; The level detector 416 and each of the ear microphones 400 and the main device 300 to facilitate signal transmission and reception operations. It consists of a 2nd control part 417 which controls a part.

Further, first and second local oscillators 311 and 418 for outputting a predetermined local oscillation frequency to the first to fourth mixers 303, 306, 408 and 411 are further configured, and the first And a frequency value of the local oscillation frequency output from the second local oscillators 311 and 418 is controlled by the control of the first or second controllers 310 and 417.

In addition, the main device 300, the speaker 317 for outputting the voice signal of the other party's caller supplied from the mobile phone 100, and the user's development by changing the electrical signal to the connection unit 201 and the band filter 312 It further comprises a first microphone 315 that is output to the user characterized in that the user can freely implement the functions such as reference sound setting, voice dialing, call using the main device 300.

Referring to the operation of the present invention configured as described above is as follows.

First, the user mounts the mobile phone 100 to the holder 200, and then connects the connection unit 201 to the power and data input and output terminals of the mobile phone 100, the main device embedded in the mobile phone 100 and the holder 200 Allow 300 to be electrically connected. The cradle 200 receives power from the vehicle through a cigar jack to charge the mobile phone 100 and, in some cases, to charge the spare battery 202 for the ear microphone 400. On the surface of the cradle 200, a display lamp 204 for displaying the charging state of the mobile phone 100 is formed.

In addition, a switch 200a for controlling the operation of the main device 300 is formed on the surface of the cradle 200. The switch 200a is divided into an ON / OFF switch and a mode selection switch. The ON / OFF switch is used to control the overall function of the main device, and the mode selection switch is used whenever the user presses the mode selection switch. Communication frequency conversion and recording mode between the main device 300 and the ear microphone 400 are set.

After attaching the mobile phone 100 to the holder 200 as described above, the user puts the earpiece 404 of the ear microphone 400 on the ear so that the earphone cap 403 is inserted into the ear hole, and the microphone 402 at this time. ) Is located around the user's mouth. When the user operates the switch 405 provided in the ear microphone 400 and sets the recording mode while wearing the ear microphone 400, the user's nurturing the microphone 402 is performed. After being converted into an electrical signal through the amplifier 406 is amplified and supplied to the voice conversion unit 407, the voice conversion unit 407 is the voice expansion under the control of the second control unit 417 to the third mixer 408 )

The third mixer 408 mixes the local oscillation frequency output from the second local oscillator 418 and the audio signal output from the voice conversion unit 407 and the main device 300 through the second transceiver 410. The first transceiver 305 of the main unit 300 receives the signal transmitted from the second transceiver 410 and supplies the signal to the second mixer 306, and the second mixer 306 transmits the signal. Mixes the local oscillation frequency output from the first local oscillator 311 with the input signal and outputs it to the intermediate frequency amplifier 307.

The intermediate frequency amplifier 307 detects the voice signal of the user transmitted from the ear microphone 400 by intermediately amplifying the mixed signal of the second mixer 306 and bands through the second speech converter 308. Output to the filter 312, the band filter 312 to filter the user's voice signal is input to a predetermined frequency band to remove the noise and then supplied to the A / D converter 313 to convert to a digital signal 1 Supply to the control unit 310.

After the recording mode is set, the first control unit 310 stores the voice signal input through the A / D converter 313 as a reference voice in the voice pattern recognition unit 314 and then dials using the voice recognition of the user. This is the reference sound for recognizing the dial number.

If the user says the dial number to make a call while the reference tone is set as described above, for example, to make a call to '031-318-0942' In this case, the user's training is converted into an electrical signal through the microphone 402 is supplied to the first control unit 310 of the main device 300 through the path as described above, the first control unit 310 Compares the dial number voice input from the user with the reference voice stored in the voice pattern recognition unit 314 to recognize the dial number spoken by the user.

Recognizing the dial number, the first control unit 310 outputs a dial signal for the recognized dial number to the mobile phone 100 through the connection unit 201 to perform a wireless call. In the present invention, including the dial number '# (shop). Key inputs marked with * (eye) can also be input by voice.

On the other hand, when connected to the other party by the control operation as described above, the first voice converter 302 after the voice signal input from the other party is input through the connection unit 201 and amplified by the amplifier 301 ) And then is supplied to the first mixer 303, the first mixer 303 is mixed with the local oscillation frequency output from the first local oscillator 311 and output, and output from the first mixer 303 The voice signal is amplified by the RF amplifier 304 and then wirelessly transmitted to the ear microphone 400 through the first transceiver 305.

The second transceiver 410 of the ear microphone 400 receives the voice signal transmitted from the first transceiver 305 and outputs the voice signal to the fourth mixer 411, and the fourth mixer 411 and the second intermediate part. The voice signal of the other party is detected by the intermediate frequency mixing and the intermediate frequency amplification operation of the frequency amplifier 412. The detected voice signal of the other party is expanded by the fourth voice converter 413 and then amplified by the amplifier 414 and then output to the speaker 415. The other party's voice output to the speaker 415 is output through the earphone cap 403 inserted into the user's ear hole so that the user can hear the other party's voice.

On the other hand, the fostering of the user during the call is wirelessly transmitted to the main device 300 through the path as described above, and then supplied to the mobile phone 100 through the connection unit 201 to be provided to the other party to make the call smoothly. Will be.

In the present invention, various hopping methods are adopted to maintain the communication state between the main device 300 and the ear microphone 400 in an optimal state. The first hopping method is a method of detecting the level of the voice signal communicated between the main device 300 and the ear microphone 400 and changing the frequency (channel) communicated with each other when the level is less than the reference value. For example, when the first level detector 309 detects that the user's voice signal is output from the voice converter 308 of the main device 300, the first level is lower than the reference value. The detector 309 outputs a channel change signal to the first controller 310, and the first controller 310 controls the local oscillation frequency value output from the first local oscillator 311 to be changed, and at the same time, the ear microphone ( The second control unit 417 of the 400 also notifies the changed frequency value so that both sides of the transmission and reception frequency value is variable.

The channel conversion as described above may be performed first at any place of the ear microphone 400 or the main device 300, and the control unit which first changes the frequency value informs the counterpart side of the changed frequency value to the ear microphone 400 and the main unit. The device 300 allows data transmission / reception frequencies to be matched with each other. When the communication frequency of the main device 300 and the ear microphone 400 is changed, the noise is reduced by that, so that the user can hear the improved sound sensitivity.

The second hopping method is to set several hopping frequencies in advance in the first controller 309 (or the second controller) and change the output frequency value of the first local oscillator 311 at regular intervals. That is, when a call is made, the first controller 309 controls the first local oscillator 311 according to the set value so that the local oscillation frequency is output at a predetermined frequency, and the microphone 400 follows this frequency value. The second control unit 417 also informs the transmit / receive frequencies of both sides to match, and when a certain period has elapsed, the first control unit 309 resets the first local oscillator 311 to the next preset frequency value. By controlling the transmission and reception channels between the main device 300 and the ear microphone 400 are variable.

In the third hopping method, the first control unit 309 (or second control unit) randomly varies the output frequency value of the first local oscillator 311 and changes the frequency of the second control unit 417 of the ear microphone 400. It tells the value so that the transmission and reception frequency values of both sides are matched. All three hopping methods described above occur during the user's conversation, and the transmission mute, the reception mute, and the speaker mute operation are instantaneously performed to compensate for the sound quality while the variable operation of the transmission / reception channel is performed smoothly.

On the other hand, in the present invention, the first and second controllers 310 and 417 whether or not the user wants to prevent eavesdropping when the voice signal transmission and reception operations between the main device 300 and the ear microphone 400 are performed in the present invention. The reference frequency values provided when the first and third voice expansion units 302 and 407 are expanded are converted. When the reference frequency values provided during the voice expansion of the first and third voice extension units 302 and 407 are converted, even when others attempt to eavesdrop, the reference frequency of the voice signal cannot be matched and the eavesdropping is impossible. In the present invention, the main apparatus 300 also includes a speaker 317 and a microphone 315. Therefore, the user can hear the other party's voice through the speaker 317 so that the user does not use the ear microphone 400, and the user's voice is transmitted to the other party through the microphone 315, so that the hands-free function can be used freely. have. In addition, the user can implement functions such as reference sound setting, voice dialing, and call using voice without using the microphone 315 provided in the main device 300.

In order to miniaturize the size of the main device 300 and the ear microphone 400 applied to the present invention, one-chip ICs in which a transceiver and a local oscillator are electronically used are used. The substrate was minimized.

As described above, the present invention stores a user's standard voice inside the holder on which the mobile phone is mounted, and recognizes when the user's voice is input later. The main device outputs a dial signal and plugs into the user's ear. By constructing an ear microphone that allows a user to make a mobile phone call as a voice by communicating a voice signal wirelessly with the main device, the user can conveniently dial and transmit and receive according to a wireless voice recognition function without manipulating the mobile phone. It is expected to provide a hands-free device with voice recognition function that eliminates eavesdropping and frequency interference by applying ultra-small ear microphone and high-tech new technology by high density integrated circuit design.

Claims (8)

A mobile phone 100 capable of wireless communication; Mounted inside the vehicle, the mobile phone 100 is detachable, the cradle 200 is formed with a connection portion 201 is connected to the mobile phone 100 to enable communication between the mobile phone 100 and the main device 300 Wow; Is mounted inside the cradle communicates with the ear microphone 400 as a predetermined frequency, and in the recording mode to store the user's voice input wirelessly through the ear microphone 400 as a reference voice, after which the user makes a call When the spoken number is input through the microphone, the dial number is recognized by comparing with the stored reference voice, and the recognized dial number is transmitted to the mobile phone 100 through the connection unit 201 to make a call. Device 300; An earring 404 formed to be hooked to a user's ear is formed, and an earphone cap 403 is formed at the center of the earring 404 to be inserted into a user's ear hole, and converts the user's development into an electrical signal. The speaker 415 is configured to convert the voice of the other party to the sound of the microphone 402, and the battery 401 for supplying the driving voltage is mounted and the speaker of the other party transmitted wirelessly from the main device 300 is mounted. Output through 415, the user's upbringing ear microphone 400 to be transmitted to the other party by wireless transmission to the main device 300; Hands-free device with a speech recognition function, characterized in that consisting of. The first voice converter of claim 1, wherein the main device 300 extends the voice signal of the other party's caller, which is input from the mobile phone 100 through the connection unit 201, under the control of the first controller 310. 302, a first mixer 303 for mixing a predetermined local oscillation frequency with the voice signal output from the first voice converter 302, and an audio signal output from the first mixer 303. A first transmission / reception unit 305 for wirelessly transmitting to the 400 and supplying a user's voice signal transmitted from the microphone 400 to the second mixer 306, and a voice signal input from the first transmission / reception unit 305. A second mixer 306 that mixes a predetermined local oscillation frequency with the first intermediate frequency amplifier 307 that detects a user's voice signal by amplifying an intermediate frequency signal of the voice signal output from the second mixer 306; And the connection unit 201 by extending the voice signal detected by the first intermediate frequency amplifier 307. A second voice converter 308 for transmitting the voice signal to the mobile phone 100, a first level detector 309 for detecting the level of the voice signal output from the second voice converter 308, 2 The band filter 312 for filtering the voice signal output from the voice conversion unit 308 for a predetermined band, and the voice signal and voice corresponding to the number sound input through the A / D converter 313 in the recording mode The first control unit 310 recognizes the dial number by comparing the reference voice stored in the pattern recognition unit 314 and supplies a dial signal corresponding to the recognized dial number to the mobile phone 100 through the connection unit 201. Hands-free device with a speech recognition function, characterized in that consisting of. The apparatus of claim 1, wherein the ear microphone 400 includes: a third voice converter 407 for expanding a user's voice signal output from the second microphone 402 under the control of the second controller 417; A third mixer 411 for mixing a predetermined local oscillation frequency with the voice signal output from the third voice converter 407, and a voice signal output from the third mixer 411 through an antenna (main unit); A second transceiver 410 which transmits to the first transceiver 305 of 300 and receives a voice signal of the other party's caller transmitted from the first transceiver 305 to the fourth mixer 411; And a fourth mixer 411 for mixing a predetermined local oscillation frequency with the voice signal input from the second transmitter / receiver 410, and amplifying the voice signal output from the fourth mixer 411 to the other party. The sound detected by the second intermediate frequency amplifier 412 and the second intermediate frequency amplifier 412 for detecting an audio signal. A fourth voice converter 413 which extends the signal and supplies it to the speaker 415 through the amplifier 414, and a second level detector 416 which detects a level of the voice signal output from the voice converter 413; And a second control unit (417) for controlling each unit so that the signal transmission / reception operation between the ear microphone (400) and the main device (300) is performed smoothly. 4. The first and second local oscillators 311 and 418 according to claim 2 or 3, which output a predetermined local oscillation frequency to the first to fourth mixers 303, 306, 408 and 411. ), And the frequency values of the local oscillation frequencies output from the first and second local oscillators 311 and 418 are controlled by the control of the first or second controllers 310 and 417. Hands-free device with a speech recognition function. 4. The first or second control unit (310) (417) according to any one of claims 1 to 3, wherein the level of the audio signal detected by the first or second level detector (309) (416) is less than or equal to the reference value. When the frequency value of the local oscillation frequency output from the first or second local oscillator (311, 418) is varied so that the communication frequency between the main device (300) and the microphone (400) is variable, the main device (300) ) And the control unit configured to vary the frequency value of the local oscillation frequency among the controllers configured in the ear microphone 400 to inform the local oscillation frequency value changed to the counterpart control unit so that the counterpart can cope with it. Hands free device. The method according to claim 2 or 3, wherein the first or second control unit (310) (417) stores a plurality of variable local oscillation frequency values in advance, and the first and second local oscillator (311) (for each predetermined period). Hands-free device with a voice recognition function, characterized in that for varying the output frequency value of the 418 sequentially the communication channel between the main device 300 and the ear microphone 400. 4. The method of claim 2 or 3, wherein the first or second control unit 310, 417 changes the reference frequency values of the first or third voice conversion units 413 and 407, respectively, to prevent eavesdropping. Hands-free device with a voice recognition function characterized in. According to claim 1 or claim 2, wherein the main unit 300, the speaker 317 for outputting the voice signal of the other party's caller supplied from the mobile phone 100, and the user's development by changing the electrical signal to the connection unit ( 201) and a first microphone 315 which is output to the band filter 312, so that the user can freely implement functions such as reference sound setting, voice dialing, and call using the main device 300. Hands-free device with a speech recognition function, characterized in that.