KR200316625Y1 - Switching apparatus of head set can connect to mobile phone while hearing stereo music sound - Google Patents

Abstract

The present invention is usually in the standby state, but operates only when the mobile phone response signal is detected to reduce power consumption, and by listening to the mobile phone response signal and ringing / vibration signal together to judge the incoming state of the mobile phone music listening to prevent malfunction The present invention relates to a headset switching device that can be connected to a mobile phone, and is installed in close proximity to the mobile phone, and detects a response RF signal of the mobile phone through an antenna and detects a ringing or vibration signal of the mobile phone when an incoming call is received through a microphone. ; A base is connected to the sensing unit side, an emitter is connected to the battery side, and a resistor R1 is installed between the collector and the base, so that the current consumed is generated by the response RF signal sensed by the sensing unit and generated in the resistor R1. A transistor operated by the applied voltage; A low voltage drop constant voltage circuit unit; A battery low voltage detector; Power maintenance unit; Signal amplifier and level comparator; It operates with the voltage supplied from the low voltage drop constant voltage circuit unit and the power holding unit, and compares the state of the incoming call signal and the low voltage of the battery detected by the detection unit to generate the respective sound corresponding to the corresponding operation, and relay operation A control unit for outputting to the earphone of the headset through; It consists of a 1st switch.

Description

Headset switching device that can be connected to a mobile phone while listening to music {SWITCHING APPARATUS OF HEAD SET CAN CONNECT TO MOBILE PHONE WHILE HEARING STEREO MUSIC SOUND}

The present invention relates to a headset switching device, and more particularly, to a mobile phone during music listening, which includes a headset for selectively connecting a mobile phone and a music player to receive a mobile phone when the mobile phone is received while listening to music. A headset switching device that can be connected.

Looking at the prior art related to the present invention, Korean Patent Publication No. 2000-018045, when the detection circuit detects the incoming call of the mobile phone and outputs a switching control signal, the switching circuit is connected to the incoming detection that connects the output line of the first plug to the earphone Hands free common audio equipment and wireless telephones capable of automatic switching are disclosed. Korean Laid-Open Patent Publication No. 2000-030099 discloses a receiving means, a signal generating means for generating a mode switching drive signal, and a mode switching drive signal according to a user's selection. According to the present invention, a mode switching device between heterogeneous devices including a switching means for disconnecting one side and connecting the other side is disclosed. A stereo hands-free earphone microphone for portable / acoustic device.

However, these conventional devices are unnecessarily excessive in power consumption because they are always operated in an on state, and because they detect only the reception state of a mobile phone as an RF signal, etc. There was a problem of malfunction.

Therefore, the present invention is to solve the above-mentioned conventional problems, provided with a headset for selectively connecting the mobile phone and the music playback device so that when the mobile phone is received while listening to music to connect to the mobile phone, the usual In standby mode, it operates only when mobile phone response signal is detected to reduce power consumption, and detects mobile phone response signal and ring / vibration signal together to determine the incoming status of mobile phone. It is an object to provide a headset switching device that can be.

1 is a block diagram of a headset switching device that can be connected to a mobile phone while listening to music according to the present invention.

Figure 2 is a detailed circuit diagram showing a sensing unit of the present invention Figure 1;

Figure 3 is a detailed circuit diagram showing a main body of the switching device of the present invention Figure 1;

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

10: detector 11: filter

12: microphone 20: the main body of the switching device

21: control unit 22: battery

23: relay 24: low voltage drop constant voltage circuit

25: battery low voltage detection unit 26: power holding unit

27: signal amplifier 28: level comparator

30: mobile phone connection plug 31: music player plug

32: detection unit plug 33: main body plug

34: headset plug 40: headset

41: earphone 42: microphone

SW1: first switch SW2: second switch

Q1 ~ Q6: Transistor D1 ~ D4: Diode

C1 ~ C4: Capacitor R1 ~ R5: Resistance

OP1, OP2: Op amp

Headset switching device that can be connected to a mobile phone while listening to music according to the present invention for achieving the above object, provided with a headset for selectively connecting the mobile phone and the music playback device when the mobile phone is received while listening to music by connecting to the mobile phone An apparatus for making a call, the apparatus comprising: a sensing unit installed in proximity to the mobile phone and detecting a response RF signal of the mobile phone through an antenna, and detecting a ringing or vibration signal of the mobile phone when an incoming call is received through a microphone; A base is connected to the sensing unit side, an emitter is connected to the battery side, and a resistor R1 is installed between the collector and the base, so that the current consumed is generated by the response RF signal sensed by the sensing unit and generated in the resistor R1. A transistor operated by the applied voltage; A low voltage drop constant voltage circuit unit generating a constant voltage by the operation of the transistor and supplying the constant voltage to each main body; A battery low voltage detector for detecting a low voltage of the battery and transferring the low voltage to the controller; A power supply holding unit for maintaining an operating voltage of the control unit through transistors Q2 and Q3 even if the response RF signal is removed; A signal amplifier and a level comparator for amplifying and level comparing the ring tone or vibration signal of the mobile phone detected by the detector and transmitting the level to the controller; It operates with the voltage supplied from the low voltage drop constant voltage circuit unit and the power holding unit, and compares the state of the incoming call signal and the low voltage of the battery detected by the detection unit to generate the respective sound corresponding to the corresponding operation, and relay operation A control unit for outputting to the earphone of the headset through; When the stereo sound input from the music player is connected to the earphone of the headset, the battery power is supplied to each part of the main body when the incoming call signal is detected, and the corresponding sound output from the controller is supplied to the earphone of the headset. And a first switch that cuts off the power supplied to the main body when turned on by a user's operation and connects the voice signal of the mobile phone to one of the earphones of the headset.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a block diagram of a headset switching device that can be connected to a mobile phone while listening to music according to the present invention, FIG. 2 is a detailed circuit diagram showing a sensing unit of FIG. 1 of the present invention, and FIG. Detailed circuit diagram shown.

As shown, the present invention is provided with a headset for selectively connecting the mobile phone and the music playback device in the device for allowing the mobile phone to be connected to the phone when receiving the music while listening to music, the sensing unit 10, low voltage Drop-down constant voltage circuit section 24, low voltage detection section 25, power supply holding section 26, signal amplifier section 27, level comparator 28, control unit 21, the first switch (SW1) and the battery control unit 21 And a relay 23.

The detector 10 is installed in close proximity to the mobile phone, and detects the response RF signal of the mobile phone through the antenna ANT, and detects the ringtone or vibration signal of the mobile phone when the incoming call is received through the microphone 12.

In addition, by connecting a base end to the sensing unit 10 side, an emitter to a battery 22 side, and installing a resistor R1 between the collector and the base, the response RF detected by the sensing unit 10 A transistor Q1 is provided which is consumed by the signal and operated by the voltage generated by the resistor R1.

The low voltage drop constant voltage circuit part 24 generates a constant voltage by the operation of the transistor Q1 and supplies it to each part of the main body 20, and the battery low voltage detection part 25 detects the low voltage of the battery 22 and controls the control part 21. To pass).

The power holding unit 26 maintains the operating voltage of the control unit 21 through the transistors Q2 and Q3 even when the response RF signal is removed, and the signal amplifier 27 and the level comparator 28 perform the sensing unit 10. The amplified ring level or vibration signal of the mobile phone detected by the level comparison is delivered to the control unit 21.

The control unit 21 operates with the voltage supplied from the low voltage drop constant voltage circuit unit 24 and the power holding unit 26, and compares and determines the state of the cellular phone incoming signal and the battery low voltage detected by the detection unit 10. Each generated sound is generated, and outputs it to the earphone 41 of the headset 40 through the relay 23 operation.

The first switch SW1 connects the stereo sound input from the usual (off state) music player to the earphone 41 of the headset 40, and supplies power to the battery 22 when the incoming call signal is detected. In addition to supplying to each part of the), and outputs the corresponding sound output from the control unit 21 to the earphone 41 of the headset 40, and cuts the power supplied to the main body 20 when turned on by the user's operation At the same time, the voice signal of the mobile phone is connected to be transferred to either of the earphones 41 of the headset (40).

On the other hand, the second switch (SW2) transmits a call start signal to the mobile phone by the user's operation to enable a voice call through the headset (40).

The control unit 21 is preferably a conventional MCU, etc., the microphone 12 of the detector 10 may be applied to a device such as piezo (PIEZZO) to detect more fine vibration.

In addition, by the mobile phone connection plug 30, the music player connection plug 31, the sensor plug 32, the main body plug 33 and the headset connection plug 34, the user has a mobile phone and the switching device main body and headset It is configured to be detachably.

Referring to the operation of the present invention configured in this way in more detail as follows.

First, the sensing unit 10 shown in FIG. 2 uses one line for each of the response RF signal and the ring detection signal. When the response RF signal of the mobile phone is detected by the antenna ANT, the filter 41 is applied. After roughing, the voltage is detected by the capacitors C3 and C4 and the diodes D2 and D3 to drive the transistor Q6.

At this time, the current that can flow to the maximum is limited by using the resistor R5, and the transistor Q1 is turned on by the voltage across the resistor R1 being 0.6V or more at this current. In addition, a ring signal (ring tone) or a vibration signal is detected from the microphone (or piezo) 12 and transmitted to the control unit 21.

As shown in FIG. 3, when the user is listening to the CD, the battery 22 is connected to the emitter of the transistor Q1 through the resistor R1 through the first and second terminals of the first switch SW1. When there is no detection of the response RF signal from the sensing unit 10, the transistor Q1 is turned off because there is no voltage across the resistor R1, and accordingly, the low voltage drop constant voltage circuit unit 24, the battery low voltage detecting unit 25, the power holding unit 26 and Since there is no current consumption in the controller 21, there is almost no current consumption in the main body 20 as a whole.

On the other hand, when a response RF signal is detected by the sensing unit 40 and current consumption occurs, the transistor Q1 is operated by the voltage generated by the resistor R1, and accordingly, the low voltage drop constant voltage circuit unit (LDO) 24 is operated. Thus, the operating power supply VCC is supplied to each of the switching device main body 20 including the control unit (MCU) 21. In addition, the control unit 21 maintains the VCC even if the signal detected by the sensing unit 40 by the power holding unit 26 constituted by the transistors Q2 and Q3 is lost. In addition, the battery low voltage detection unit 25 checks the battery low voltage state.

Next, a ring sound of the telephone is detected. First, the ring signal of the telephone detected by the sensing unit 10 is amplified and level-compared through the signal amplifier 27 and the level comparator 28 to control the controller. 21 is passed. That is, the signal amplified by the first op amp OP1 is rectified through the diode D1 and the condenser C1, and then is level detected by the second op amp OP2 and applied to the controller 21.

At this time, the average noise level is supplied to the inverting input terminal (-) of the second op amp (OP2) through the resistor R4 and the capacitor C2, and the signal attenuated slightly through the resistors of the second op amp (OP2) through the resistors R2 and R4. Supplying to the butting input terminal (+) detects a rapidly changing ring signal.

On the other hand, the control unit 21 detects the cracking of the ring signal and recognizes as a message or a call signal if it is cracked only once and recognizes it as an incoming call signal if the cracking continues. If there is no interruption signal, it is determined that the RF signal is noise.

The controller 21 recognizes a message or an incoming call signal, turns on the transistor Q4 to drive the relay 23, and distinguishes when a message is received, the incoming call signal and the battery voltage are low through the sound output terminal (SOUND OUT). Outputs the corresponding sound.

The sound output from the control unit 21 is transmitted to the headset 40, and when the user senses the corresponding sound with one of the earphones 41 and turns on the first switch SW1 to make a phone call, the battery ( At the same time as the power supply 22 is turned off, the relay 23 returns to its original position (off), and one earphone 41 of the headset 40 is connected to the mobile phone. That is, the mobile phone and one speaker 41 of the headset 40 are connected through terminals 4 and 5 of the first switch SW1 and the relay 23.

Next, when the user turns on the second switch SW2, the call start signal is transmitted to the mobile phone to enable a voice call through the headset 40.

In the above described and illustrated with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, it is common in the field to which the present invention belongs without departing from the spirit of the present invention claimed in the claims. Various modifications can be made by those skilled in the art, and such modifications are intended to fall within the scope of the appended claims.

As described above, according to the headset switching device that can be connected to the mobile phone while listening to music according to the present invention, the mobile phone is provided with a headset for selectively connecting the music player to receive a mobile phone while listening to music when connected to the mobile phone It can be used, but it is in the standby state at normal time and supplies power only when the response RF signal is detected to operate the device, which saves the power consumption of the battery and can use the battery for a long time. Determining the incoming call state by detecting the / vibration signal, etc., thereby preventing the malfunction caused by misrecognizing the RF signal of another adjacent mobile phone.

Claims (3)

In the device that has a headset for selectively connecting the mobile phone and the music player to receive a mobile phone when listening to music while listening to music in the device, A detection unit 10 installed in close proximity to the mobile phone and detecting a response RF signal of the mobile phone through an antenna ANT, and detecting a ringing or vibration signal of the mobile phone when the incoming call is received through the microphone 12; A base end is connected to the sensing unit 10 side, an emitter is connected to the battery 22 side, and a resistor R1 is installed between the collector and the base to respond to the response RF signal detected by the sensing unit 10. A transistor Q1 generated by a current consumption and operated by a voltage generated by the resistor R1; A low voltage drop constant voltage circuit part 24 generating a constant voltage by the operation of the transistor Q1 and supplying it to each part of the main body 20; A battery low voltage detector 25 detecting a low voltage of the battery 22 and transferring the low voltage to the controller 21; A power supply holding unit 26 for maintaining the operating voltage of the control unit 21 through the transistors Q2 and Q3 even if the response RF signal is removed; A signal amplifier 27 and a level comparator 28 for amplifying and level comparing the ring tone or vibration signal of the mobile phone sensed by the detector 10 and transmitting the level to the controller 21; The low voltage drop constant voltage circuit unit 24 and the power supply unit 26 is operated by the voltage, and the state of the mobile phone incoming signal and the battery low voltage detected by the detection unit 10 is determined by comparing each of the corresponding A controller 21 for generating a sound and outputting the sound to the earphone 41 of the headset 40 through a relay 23 operation; The stereo sound input from the music player (normally off) is connected to the earphone 41 of the headset 40, and when the incoming call signal is detected, the battery 22 is supplied to each part of the main body 20. The sound output from the control unit 21 is output to the earphone 41 of the headset 40, and when turned on by a user's operation, cuts off the power supplied to the main body 20, and at the same time, the voice signal of the mobile phone. Headset switching device that can be connected to the mobile phone while listening to music, characterized in that consisting of a first switch (SW1) for connecting to be transferred to either of the earphones (41) of the headset (40). The method of claim 1, wherein the control unit 21 Headset switching device that can be connected to the mobile phone while listening to music, characterized in that it is determined that the ringing state of the mobile phone only when the bell or vibration signal detected by the detection unit 40 and the response RF signal at the same time. The method of claim 1, wherein the control unit 21 It detects the cracking of the ring signal, but recognizes it as a message or a call signal if it is cracked only once, and recognizes it as an incoming call signal if the cracking continues for a certain time, and determines that the input RF signal is noise if there is no cracking signal. Headset switching device that can be connected to a mobile phone while listening to music.