KR20010088468A - Audio input and output apparatus with wireless audio transmitting and receiving function - Google Patents

Abstract

PURPOSE: An earphone/microphone device having an audio exchange function of a wireless type is provided to be simplified in use and treatment by connecting a control module and a headset connected a portable communication terminal and a portable audio reproducing device by the wireless type. CONSTITUTION: A control module(10) controls a selective reproduction and process of a conversation voice of a portable communication terminal and an audio from a portable audio reproducing device and a background music process of the audio to the conversation voice. A head set(26) is connected with the control module(10) by wireless for outputting the conversation voice of the control module(10) and the audio, inputting the conversation voice, and recording/reproducing the conversation voice.

Description

AUDIO INPUT AND OUTPUT APPARATUS WITH WIRELESS AUDIO TRANSMITTING AND RECEIVING FUNCTION}

The present invention relates to an earphone / microphone device having a wireless audio exchange function, and more particularly, it is possible to connect a plurality of audio processing devices having an audio reproduction function, and optionally only audio from one audio processing device. The present invention relates to an earphone / microphone device having a wireless audio switching function for outputting or superimposing and outputting audio from a plurality of audio processing devices.

At present, the trend of the spread of portable audio processing devices includes such portable audio processing devices including CDMA / GSM terminals, PCS terminals, PDA terminals capable of exchanging voice and video / data, and the like. In addition, the portable audio player includes a MP3 player, a compact disc player, and a magnetic disc player that reproduce digital audio signals composed of music files.

In the case of such portable audio devices, especially portable communication terminals, a so-called 'earphone / microphone device' that integrates an earphone function for reproducing and outputting the voice of the other party and a microphone function for inputting and transmitting the voice of the call party is widely used. do.

In general, the 'earphone / microphone' for a portable communication terminal merely assumes the function of reproducing the voice of the other party to be transmitted to the portable communication terminal and inputting the call party's voice, such as an MP3 or a compact disc player. In consideration of the fact that audio from a portable audio playback device must use separate earphones, a portable communication terminal has recently been adopted in which at least one audio playback device can be connected to an earphone / microphone device of a portable communication terminal. During call waiting, an earphone / microphone device designed to enable audio reproduction from the audio reproducing apparatus has been proposed.

That is, the earphone / microphone device which can be connected to the portable communication terminal and at least one portable audio playback device switches the mode to the portable audio playback device in the call waiting state of the portable communication terminal and outputs the audio reproduced by the portable audio playback device. When the call state of the portable communication terminal is set in that state, the call voice exchange of the portable communication terminal is set by mode switching, and accordingly, a single earphone / microphone device is used for the portable communication terminal and the portable audio player. Switching audio delivery is achieved.

However, the earphone / microphone device is wired to a jack unit to which a portable communication terminal and a portable audio player are commonly connected, and wired wiring is also made in the case of the jack unit and the headset. As a result, the overall portability becomes inconvenient.

In addition, the earphone / microphone device has only a selective path to the portable communication terminal and the portable audio player by mode switching in the jack unit, and thus, for example, the portable audio playback device during a call by the portable communication terminal. Audio is disconnected, so that audio from the portable audio player cannot be heard during a call by the portable communication terminal.

Moreover, in consideration of a function of transmitting background music during a call recently considered to increase a feeling of communication during a call by a portable communication terminal, the earphone / microphone functions to transmit a background music during a call by a portable communication terminal. Will not achieve.

In the case of the earphone / microphone device described above, the recording / playback function of the call is not provided while the call is made by the portable communication terminal. The portable communication terminal of the specific model records / plays the call content. Although designed, it is quite cumbersome to operate a portable communication terminal for recording a call while the call is being carried out by the earphone / microphone, and in this regard, the function for recording and playing the call to the earphone / microphone The design of the situation is required.

Accordingly, the present invention has been made in view of the above-described prior art, and at least a jack unit (that is, a control module) to which a portable communication terminal and a portable audio player are connected and a headset are connected through a wireless channel, When a call is established by a portable communication terminal while listening to audio from a portable audio player, audio from the portable audio player is selectively transmitted as background music, and the headset is equipped with a recording / playback function of call contents. It is an object of the present invention to provide an earphone / microphone device having a wireless audio switching function to realize a function.

In order to achieve the above object, according to a preferred embodiment of the present invention, in the earphone / microphone device that the portable communication terminal and the portable audio playback device are commonly connected via the first and second connector wires, the portable communication terminal A control module for controlling the selective playback of audio from the portable audio playback device and the voice of the call; and a control module for controlling the background music processing of the audio with respect to the voice of the call; There is provided an earphone / microphone device having a wireless audio switching function comprising a call voice and an audio output, an input of a call voice, and a headset for recording and reproducing the call voice.

Preferably, the control module includes a call / end button for ending a call and the call by the portable communication terminal, a background music transmission control button for transmitting audio of the portable audio player as background music, and the headset; An antenna for wirelessly exchanging audio is provided.

In addition, the control module includes a voice processing unit for processing a voice call for the portable communication terminal, an audio processing unit for processing audio from the portable audio player, and an RF modulation / demodulation process for the call voice and the audio. A module, a background music light switching device for switching a path from which the audio from the audio processor is applied to the call voice processor, a background music level setting device for setting an audio level as background music via the background music switching device, and A background music switching control including a background music switching element and the background music level setting element, and a control unit for controlling the call path are included.

The headset exchanges (demodulates) the audio corresponding to the antenna from the control module with the antenna corresponding to the antenna of the control module, the voice from the control module and the voice from the microphone. A control unit for controlling the recording and reproduction of the call content according to a mode set by the module, the recording / playback button, and converting the call content from the RF module into recording data and playing the recording data under the control of the control unit. And a call content memory for storing the recorded data and reading the stored recorded data under the control of the voice converting unit.

According to the earphone / microphone apparatus having a wireless audio exchange function according to the present invention, a control module to which the portable communication terminal and the portable audio player are connected and a call voice / audio for the exchange of the control module The headset is connected wirelessly.

In this state, the audio from the portable audio player is RF-converted in the control module and transferred to the headset through the antenna, and the audio RF signal received by the antenna of the headset is reproduced and reproduced in the receiver.

When the call mode is set by the call / end control button of the control module, the call is made by the microphone of the control module and the headset while the background music is selectively transmitted by the background music transmission control button.

If recording is set by the record / playback button of the headset while such a call is being executed, the call content is stored in the call content memory through the voice conversion unit, and the stored call content is reproduced by the voice conversion unit, thereby receiving the earpiece of the headset. It becomes audible at.

1 is a view for explaining the application state of the earphone / microphone device having a wireless audio switching function according to a preferred embodiment of the present invention,

FIG. 2 is a functional block diagram of an earphone / microphone having a wireless audio switching function according to the present invention shown in FIG.

* Description of the symbols for the main parts of the drawings *

10: control module, 12: portable communication terminal,

16: portable audio player, 20: answer / end button,

22: background music transmission control button, 26: headset,

30: microphone, 32: record / play button,

40: control unit, 42: call voice processing unit,

44: audio processor, 46: RF module,

48: background music switching element, 50: background music level setting element,

52: RF module, 54: control unit,

56: voice conversion unit, 56: call content memory.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a view for explaining a state of use of the earphone / microphone device having a wireless audio switching function according to a preferred embodiment of the present invention.

In the drawing, reference numeral 10 denotes a control module of an earphone / microphone device having a corresponding wireless audio exchange function. The control module 10 includes one of a CDMA / GSM terminal, a PCS terminal, and a PDA terminal. A first connector wire 14 connected to an assumed portable communication terminal 12 and a second connector wire 18 connected to a portable audio player 16 such as an MP3 player, a compact disc player, a magnetic disc player, or the like are provided. It is equipped in one piece.

In addition, on the control module 10, the call / end button 20 for setting the call / call end mode of the portable communication terminal 12 connected via the first connector wire 14, and the call / Audio played by the portable audio player 16 connected through the second connector wire 18 in a state where a call of the portable communication terminal 12 is made by the operation of the end button 20 is performed in the background. Background music control button 22 for outputting in the form of music is provided.

In addition, the control module 10 includes an antenna for wirelessly transmitting audio of the portable communication terminal 12 and / or the portable audio player 16 to a headset to be described later or receiving audio transmitted wirelessly from the headset. (24) is provided, the antenna 24 is preferably a loop type built in the control module 10, but the present invention is not limited thereto.

In addition, the control module 10 is also provided with a button for adjusting the volume (volume) of the audio or a button for controlling the overall functions (play, stop, FF, RF, etc.) of the portable audio player 16 In addition to this, it is also possible to provide a 10-key capable of inputting a call number for the portable communication terminal 12.

In the figure, the headset indicated by reference numeral 26 is provided with speakers (i.e., a receiver) 28a, 28b for reproducing and outputting audio, and the voice of a call party in case of carrying out a call by the portable communication terminal 12. The microphone 30 for inputting the voice is spoken from the receiver (eg, 28b) side of one side.

Preferably, the predetermined position of the speech path of the microphone 30 is provided with a recording / playback button 32 for recording / reproducing the contents of the call assumed in the present invention, and the receiving unit (for example 28b) of the one side controls the control. An antenna 34 corresponding to the antenna 24 of the module 10 is provided, and the antenna 34 may be formed in a loop shape extending in the longitudinal direction of the headset 26.

FIG. 2 is a functional block diagram of an earphone / microphone having a wireless audio switching function according to the present invention shown in FIG.

Referring to the drawings, the control unit 40 provided in the control module 10 is the operation state of the call / end button 20 and the background music transmission control button 22 and the portable communication terminal 12 or the The overall function of the corresponding earphone / microphone device is controlled according to the operation state of the portable audio player 16.

In addition, the voice processing unit 42 processes the voice from the portable communication terminal 12 connected through the first connector wire 14 or the voice from the microphone 30 of the headset 26 (for example). Amplification, etc.), the voice call processing unit 42 switches the path of the portable communication terminal 12 on / off according to the operation state of the call / end button 20. ).

In addition, the audio processor 44 processes (for example, amplifies) audio from the portable audio player 16 connected through the second connector wire 18.

The RF transmission processing unit 46a of the RF module 46 performs RF conversion processing (ie, modulation) on the call voice applied from the call voice processing unit 42 or the audio applied from the audio processing unit 44 to perform the antenna 24. The RF module 46b of the RF module 46 performs RF reconversion (ie, demodulation) of the voice call received wirelessly through the antenna 24. It is applied to the sound processor 42 side.

Further, the background music switching element 48a is always connected between the audio processor 44 and the RF transmission processor 46a in a non-connected state to set a path for the audio from the portable audio player 16. Done.

More specifically, the background music switching device 48a is always kept in an unconnected state, and the audio light switching device 48b installed correspondingly to the background music switching device 48a is always kept in a connected state. Although the path through which the audio from the audio processor 44 is reproduced through the background music switching element 48a is set, the background music transmission control button is set in a state where the call mode is set by the call / end button 20. When the background music is set to OFF by the control unit 22, the audio light switching device 48b is switched to OFF by the control signal C2 applied from the control unit 40 so that the audio processing unit 44 Audio from the player will be cut off.

In addition, the background music level variable element 50 is the control unit 40 when the transmission of the background music is set by the background music transmission control button 22 in the state that the call mode is set by the call / end button 20 The audio level from the audio processor 44 is converted (for example, reduced) so as to correspond to the variable data of the control signal C3 applied from the voice signal processor 42 so as to be processed as background music.

In addition, the RF receiver 52a of the RF module 52 configured in the headset 26 performs RF conversion (ie, demodulation) and amplifies the call voice / audio received through the antenna 34 to receive the receiver. 28a and 28b, and the RF transmitter 52b of the RF module 52 converts (i.e., modulates) the voice from the microphone 30 and wirelessly through the antenna 34. Will be sent.

In addition, the control unit 54 controls to record the call voice received through the RF module 52 when the recording / playback button 32 is operated, the voice conversion unit 56 of the control unit 54 Under control, the voice content from the RF reception processor 52a (and the voice from the microphone 30) is converted (for example, digitally encoded) to be stored in the content memory 58 or stored therein. The conversation read from 58 is reproduced (eg, analog decoded) and transmitted to the receivers 28a and 28b.

According to the above configuration, with the portable communication terminal 12 and the portable audio player 16 connected to the control module 10 via the first and second connector wires 14 and 18, When the portable audio player 16 is played back, the audio from the portable audio player 16 is amplified by the audio processor 44, for example, so that the always-connected audio switching device 48b is connected. Via the RF conversion processor 46a of the RF module 46 via the RF is transmitted to the headset 26 through the antenna 24.

The audio RF signal received through the antenna 34 of the headset 26 is reconverted (demodulated) by the RF receiver 52a and reproduced by the receivers 28a and 28b.

When a call mode is set by the call / end button 20 when the call is executed by the portable communication terminal 12, the control signal C1 from the control unit 42 receives the call voice processing unit 42. Path switching element 42a is connected to the switching ON, so that the voice call from the portable communication terminal 12 is amplified by the call voice processing section 42 and converted by the RF transmission processing section 46a. It is then processed and wirelessly transmitted via the antenna 24.

In this case, the controller 42 switches the audio path switching element 48b to a non-connected state to block audio from the audio processor 44.

Accordingly, the voice call RF signal received through the antenna 34 of the headset 26 is reconverted (demodulated) by the RF receiver 52a and reproduced by the receivers 28a and 28b.

On the other hand, the voice input through the microphone 30 is converted (that is, modulated) by the RF transmission processor 52b of the RF module 52 and wirelessly transmitted through the antenna 34, and the call voice The RF signal is reconverted (demodulated) by the RF receiving processor 46b through the antenna 24 of the control module 10 and applied to the call voice processor 42.

Therefore, the call voice amplified by the call voice processor 42 is applied to the portable communication terminal 12, and is transmitted to the call counterpart via the portable communication terminal 12.

When the call mode is set in the state in which audio is reproduced by the portable audio player 16, and the background music transmission mode is set by the background music transmission control button 22, the control unit ( 40 is connected to the background music switching device 48 by a control signal (C2, C3) and to increase the level (that is, the resistance value) by the background music level variable device 50, accordingly The audio from the audio processor 44 is applied to the voice call processor 42 with the level reduced.

Therefore, the low-level audio is superimposed on the call voice via the call voice processing unit 42 and applied to the portable communication terminal 12 and also to the headset 26, so that the call is supported with the background music. It becomes possible.

In addition, if the recording of the contents of the call is set by the recording / playback button 32 provided to the headset 26 while the call mode is in progress, the control unit 54 of the headset 26 is configured to perform the voice conversion unit. Under the control of 56, the call content voice processed by the RF module 52 is digitally encoded and stored in the call content memory 58.

On the other hand, when playback is set by the recording / playback button 32, the control section 54 causes the call contents voice data stored in the call contents memory 58 to be read and applied to the voice conversion unit 56. Then, the voice of the contents of the call analog decoded by the voice converter 56 is reproduced through the receivers 28a and 28b.

As described above, according to the earphone / microphone apparatus having a wireless audio exchange function according to the present invention, the control module and the headset connected to the portable communication terminal and the portable audio player have a wired structure as they are connected wirelessly. Compared to the case, its use and handling becomes simple.

In addition, as the recording and storage of the call contents are possible, when an urgent memo is required, the recording of the call contents can be performed by the recording function and later replayed to check the memorized call contents.

In addition, when the call mode is performed during operation of the portable audio player with the portable communication terminal and the portable audio player being connected in common, the audio from the portable audio player can be selectively used as background music. Can be increased.

Claims (4)

In an earphone / microphone device in which a portable communication terminal and a portable audio playback device are commonly connected through first and second connector wires, A control module for controlling a selective playback process of the call voice of the portable communication terminal and the audio from the portable audio player, and a background music process of the audio for the call voice; Wirelessly connected to the control module comprising a headset for performing a call voice and the output of the audio, the call voice and the recording / playback of the call voice with the control module; Earphone / microphone with audio exchange function. The apparatus of claim 1, wherein the control module comprises a call / end button for ending a call and a call by the portable communication terminal, a background music transmission control button for transmitting audio of the portable audio player as background music, And an antenna for wirelessly exchanging audio with the headset. 3. The control module according to any one of claims 1 and 2, wherein the control module includes a call voice processing unit for call voice processing for the portable communication terminal, an audio processing unit for processing audio from the portable audio player 16, and RF module for RF modulation / demodulation of call voice and audio, background music path switching device for switching the path from audio processing unit to audio signal processing part, background music via the background music path switching device And a background music level setting element for setting an audio level as a background music control unit, and a background music transmission control including the background music path switching element and the background music level setting element and a control unit for controlling a call path. Earphone / microphone with audio exchange function. The apparatus of claim 1, wherein the headset exchanges an audio signal corresponding to an antenna of the control module with a call voice from the control module and a call voice from the microphone, and converts audio from the control module. A control unit for controlling the recording and reproduction of the call contents according to a mode set by the recording / playback button, and converting the call contents from the RF module into recording data under the control of the control unit. A voice conversion unit for reproducing the recorded data, and a call content memory configured to store the recorded data and read the stored recorded data under the control of the control unit. Microphone device.