KR200228526Y1 - Wireless hand-free device for hand-phone - Google Patents

Abstract

The present invention relates to a wireless handfree device for a mobile phone,

The first power supply unit 21 for power supply, the first switch 22 for supplying the power of the first power supply unit 21 to the driving power by switching operation by the input control signal, and the connection jack of the mobile phone An interface means comprising a connection jack 23 and a signal generator 26 for generating a predetermined transmission signal when a ring signal is detected, the interface means for relaying transmission and reception of voice signals between the wireless ear microphone means and the mobile phone;

It is equipped with a microphone and a speaker to talk with the other party, and when a specific signal is inputted from the interface means, a carrier for converting the mobile phone into a call state is generated, so that the user can talk to the other party through the speaker and the microphone without manipulating the mobile phone. Wireless ear microphone means for enabling communication with a party; In the wireless hand free device configured to include,

The interface means may be electrically connected to the antenna ANT1 of the cellular phone to detect a radio wave transmitted and received during a call of the cellular phone, and an amplifier for amplifying the radio wave detected by the ring detector 251 ( 252 and a ring signal generator for generating a predetermined ring sensing signal when the signal amplified by the amplifier 252 is input to cause the first switch 22 to be turned on and output to the signal generator 26. It is characterized in that it comprises a ring detecting unit 25 consisting of 253, so that the ring signal does not need to be supplied from the connection jack of the mobile phone, the connection between the mobile phone and the interface means is easy to use the product handset wireless handset It relates to a free device.

Description

Wireless handfree device for mobile phones {WIRELESS HAND-FREE DEVICE FOR HAND-PHONE}

The present invention relates to a wireless hand-free device for a mobile phone, and in particular, an interface means constituting the wireless hand-free device is electrically connected to an antenna of the mobile phone to configure a ring detecting unit for detecting a ring signal received when a call is received by the mobile phone. Since the ring signal does not need to be supplied from the connection jack of the mobile phone, it relates to a wireless hand-free device for a mobile phone, which facilitates the connection between the mobile phone and the interface means, thereby facilitating the use of the product.

At present, the mobile phone provides general users with convenience in that they can talk without restriction of the location, but when the driver wants to talk with the mobile phone, the mobile phone must be held with one hand to cause a crash.

Therefore, a hand-free device is provided that allows a user to talk on a mobile phone without using his hand while driving or doing other work. The hand-free device has a separate speaker and a high-performance microphone installed inside a vehicle, and then the speaker and the microphone Is connected to the inside of the mobile phone through the connection jack formed in the mobile phone, so that the user can talk to the other party without holding the mobile phone while driving.

However, such a hands-free device requires an expensive device, which imposes an economic burden on the user who wants to use it, and also because the contents of the call with the other party are output through a speaker installed in the car, There was a problem that you can not talk secretly with the other party while on board.

In order to solve this problem, an ear microphone composed of an earphone and a microphone is provided, and by using the connection jack 11 of the ear microphone connected to the connection jack 11 formed on the mobile phone, such an ear microphone is not only inexpensive but also inexpensive. Since the other party's training is output through the earphone plugged into the ear, even if there is another person in the car, the contents of the call do not leak.

However, since the ear microphone is connected to the mobile phone by a certain length of wire, the mobile phone should always be located near the user. During operation, the wire connecting the ear microphone and the mobile phone is very inconvenient for handle operation or other operations. There was a problem at work.

Accordingly, the present applicant has submitted a wireless hand-free device (Patent Application No. 98-) to solve the above problems.

Applicant's prior art technology is connected to the connection jack of the mobile phone, the relay operation to enable the transmission and reception of the voice signal between the wireless ear microphone means and the mobile phone, when the ring signal is detected from the mobile phone is automatically powered on the ring signal to the wireless ear microphone means Interface means for transmitting;

It is equipped with a microphone and a speaker to talk to the other party, and when a ring signal is received from the interface means, a carrier is generated to transfer the mobile phone to a call state, so that the user can operate the speaker through the speaker and the microphone without manipulating the mobile phone. Wireless ear microphone means for enabling a call to the caller; It consists of

The user can talk to the other party by using the mobile phone without holding the mobile phone, as well as the interface means connected to the mobile phone and the ear microphone which provides the user to hear the other party's voice wirelessly. To provide convenience.

However, since the applicant's prior application technology is to receive a ring signal through the connection jack connected to the mobile phone to detect that the mobile phone is called from the interface means, the connection jack specification of the mobile phone released by each mobile phone manufacturer Different from each other, it is very difficult to set up a terminal for receiving a ring signal from a mobile phone through each connection jack, and in particular, there is a problem in that an inconvenience of connecting power from the outside when the connection jack is connected to a mobile phone occurs.

Therefore, the present invention for solving the above problems is configured by the ring means to detect the ring signal received when the phone is electrically connected to the antenna of the mobile phone to the interface means constituting the wireless hand-free device to the ring signal It is an object of the present invention to provide a wireless hand-free device for a mobile phone that makes it easy to use the product because the connection between the mobile phone and the interface means is not required from the connection jack of the mobile phone.

1 is a block diagram showing an interface means applied to the present invention.

Figure 2 is a block diagram showing a wireless ear microphone means applied to the present invention.

Figure 3 is a block diagram showing a ring detection unit applied to the present invention.

※ Explanation of symbols for main parts of drawing

20: first transmitting unit, 21: first power supply unit,

23: connection jack, 25: ring detection unit,

26: signal generator, 30: first receiving unit,

31: first detector, 34: carrier detector,

40: second receiver, 41: second power supply,

44: second detector, 47: ring signal detector,

50: second transmission unit, 53: gain limiter,

54: carrier generator, 55: second frequency modulator,

251: detector, 252: amplifier,

253: ring signal generator,

The present invention for achieving the above object is configured as shown in Figures 1 to 3,

An interface means connected to a connection jack of a cellular phone, the relay means being capable of transmitting and receiving a voice signal between the wireless ear microphone means and the cellular phone, and automatically being powered on when a ring signal is detected from the cellular phone to transmit the ring signal to the wireless ear microphone means;

It is equipped with a microphone and a speaker to talk to the other party, and when a ring signal is received from the interface means, a carrier is generated to transfer the mobile phone to a call state, so that the user can operate the speaker through the speaker and the microphone without manipulating the mobile phone. Wireless ear microphone means for enabling a call to the caller; It consists of.

The interface means comprises a first transmitter 20 and a first receiver 30. The first transmitter 20 is switched by a first power source 21 for power supply and an input control signal. The first switch 22 for supplying the power of the first power supply unit 21 as the driving power, the connection jack 23 for being connected to the connection jack of the mobile phone, and the antenna ANT1 of the mobile phone are electrically connected to each other. The ring detection unit 25 detects radio waves transmitted and received through the antenna ANT1, outputs a predetermined ring detection signal corresponding thereto, and simultaneously turns on the first switch, and transmits a predetermined signal when the ring detection signal is input. A signal generator 26 for generating a signal, a first frequency modulator 24 for modulating a voice signal input through the connection jack 23 and a transmission signal output from the signal generator 26 to a first transmission frequency; Amplifying the modulated signal at the first transmission frequency Consists of a first amplifier (28) for wireless transmission via the antenna,

The first receiver 30 includes a first detector 31 for detecting signals having a second transmission frequency among the signals received through the antenna ANT2, a second amplifier 32 for amplifying the detected signals, Filter 33 to remove the noise by filtering the signal output from the second amplifier (32) and to supply the cell phone through the connection jack 23, and converting the cell phone from the signal output from the filter 33 into a call state It consists of a carrier detector 34 for detecting a carrier for supply to the mobile phone through the connection jack (23).

The ring detecting unit 25 is electrically connected to the antenna ANT1 of the mobile phone and detects the radio wave transmitted and received during the call of the mobile phone, and amplifies the radio wave detected by the ring detecting unit 251. When the amplifier 252 and the signal amplified and output from the amplifier 252 are input, a predetermined ring detection signal is generated to cause the first switch 22 to be turned on and output to the signal generator 26. And a signal generator 253.

In addition, the wireless ear microphone means is composed of a second receiver 40 and a second transmitter 50,

The second receiver 40 includes a second power supply 41 for power supply, a second switch 42 for supplying the output voltage of the power supply 41 to the driving power by switching by the input control signal. , A third switch 43 for supplying the output voltage of the power supply unit 41 to the second receiving unit 40 by switching operation by a user, and a signal having a first transmission frequency among the signals received by the antenna ANT3. A second detector 44 for detecting the noise, a third amplifier 45 for amplifying the detected signal, a filter 46 for filtering the amplified signal to remove noise and supplying the noise to the speaker, and the third amplifier ( A ring signal detector 47 which detects a ring signal from the signal output from 45 and turns on the second switch 42,

The second transmitter 50 includes a filter 51 for filtering out a voice signal input through the microphone 58 to remove noise, a fourth amplifier 52 for amplifying the filtered signal, and the fourth amplifier. A gain limiter 53 for limiting the gain of the audio signal amplified at 52; a carrier generator 54 for generating a carrier for switching the cellular phone to a call state after a predetermined time when power is supplied; And a second frequency modulator 55 for modulating the voice signal and the carrier at a second transmission frequency, and an amplifier 56 for amplifying and transmitting the frequency modulated signal through an antenna.

Unexplained reference numerals 27, 35, 48 and 57 are oscillators.

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

First, the user turns on the third switch 43 of the wireless ear microphone means so that the power is supplied to the second receiver 40 to exist in the reception standby state, and the interface means is in the off state.

In this state, when a call is received from the other party on the cellular phone, the cellular phone transmits a predetermined radio wave through the antenna ANT1 to answer the incoming call.

At this time, the detector 251 of the ring detecting unit 25 detects the radio wave transmitted and received through the antenna ANT1 and supplies it to the amplifier 252, and the amplifier 252 amplifies the input radio wave to ring signal. It is supplied to the generator 253, the ring signal generator 253 recognizes that the mobile phone is switched to the call mode by the input signal and generates a predetermined ring detection signal to turn on the first switch 22 And the signal generator 26 at the same time.

The first switch 22 is turned on so that the power of the first power supply 21 is supplied to each component of the interface means.

The signal generator 26 generates a predetermined transmission signal as a ring signal is input, outputs the predetermined signal to the first frequency modulator 24, and the first frequency modulator 24 modulates the transmission signal according to the first transmission frequency. The first amplifier 28 and the antenna ANT2 transmit the signal to the second receiver 40 of the wireless ear microphone unit, which is in the reception standby state.

On the other hand, the second detector 44 of the second receiver 40 is a signal corresponding to the first transmission frequency of the signal received through the antenna ANT3, that is, the transmission signal transmitted from the first transmitter 20 The detected and outputted third amplifier 45 amplifies and outputs the detected transmission signal.

At this time, the ring signal detector 47 of the second receiver 40 detects the ring detection signal output from the amplifier 45, and turns on the second switch 42 to operate the second power supply 41. By supplying the output voltage of) to the second transmitter 50, power is supplied to each of the components constituting the second transmitter (50).

When power is supplied to the second transmitter 50, the carrier generator 54 generates a carrier for converting the cellular phone into a call state at the same time that the power is supplied, and outputs the carrier to the second frequency modulator 55. The frequency modulator 55 modulates the input carrier according to the second transmission frequency and transmits the modulated carrier to the first receiver 30 through the amplifier 56 and the antenna ANT3.

The detector 31 of the first receiver 30 detects a signal corresponding to a second transmission frequency among the signals received through the antenna ANT2, that is, a carrier output from the second transmitter 50 and the amplifier 32. ), The second amplifier 32 amplifies the detected signal, and the filter 33 filters and outputs the amplified signal.

The carrier detector 34 of the first receiver 30 detects the carrier output from the filter 33 and supplies it to the mobile phone through the connection jack 23. The carrier opens a flip of the mobile phone or sets a call key. Since the signal is configured to have the same function as that of the input, the cellular phone receiving the carrier is switched to the call state.

As the cellular phone is switched to the call state, the other party's voice is transmitted to the first transmitter 20 through the connection jack 23, the first transmission frequency by the first frequency modulator 24 of the first transmitter 20 The signal of the transmitted caller is detected by the detector 44 of the second receiver 40 and then passed through the amplifier 45 and the filter 46 through the antenna ANT2. While being amplified and filtered and supplied to the speaker 49, the voice of the other party is output through the speaker 49 inserted into the user's ear.

Then, the user's training is converted into an electric signal by the microphone 58 and then filtered and amplified while passing through the filter 51 and the amplifier 52 and then modulated by the second frequency modulator 55 to the second transmission frequency. And the voice signal of the user transmitted through the antenna ANT3 is detected by the detector 31 of the first receiver 30 and then the amplifier 32 and the filter 33. After being amplified and filtered through the connection jack 23 is transmitted to the mobile phone is transmitted, so that the other party can hear the user's voice.

As described above, the present invention does not receive a ring signal for determining a call state of a mobile phone through a connection jack 23 connected to a mobile phone, and receives a radio wave transmitted and received through a mobile antenna (ANT1) during a call. By allowing the 25 to detect, since the mobile phone manufacturers are not connected to the connection jacks released in different standards, the installation and use of the wireless hand-free device can be expected to be much simpler.

As described above, the present invention is connected to the antenna of the mobile phone to the interface means constituting the wireless hand-free device by configuring a ring detection unit for detecting a ring signal received when a call to the mobile phone ring ring connection jack of the mobile phone It is a wireless hand-free device for mobile phones that makes it easy to use the product because the connection between the mobile phone and the interface means is easy because it does not need to be supplied from.

Claims (1)

The first power supply unit 21 for power supply, the first switch 22 for supplying the power of the first power supply unit 21 to the driving power by switching operation by the input control signal, and the connection jack of the mobile phone An interface means comprising a connection jack 23 and a signal generator 26 for generating a predetermined transmission signal when a ring signal is detected, the interface means for relaying transmission and reception of voice signals between the wireless ear microphone means and the mobile phone; It is equipped with a microphone and a speaker to talk with the other party, and when a specific signal is inputted from the interface means, a carrier for converting the mobile phone into a call state is generated, so that the user can talk to the other party through the speaker and the microphone without manipulating the mobile phone. Wireless ear microphone means for enabling communication with a party; In the wireless hand-free device configured to include, The interface means, A ring detector 251 electrically connected to the antenna ANT1 of the cellular phone and detecting a radio wave transmitted and received during a call of the cellular phone, an amplifier 252 for amplifying the radio wave detected by the ring detector 251, and an amplifier; When a signal amplified and output at 252 is input, a ring composed of a ring signal generator 253 which generates a predetermined ring detection signal to turn on the first switch 22 and outputs the signal to the signal generator 26. Wireless hand free device, characterized in that configured to include a detection unit (25).