KR100625660B1 - Ring-Tone Outputting Method of Mobile Communication Terminal Using Wireless Headset - Google Patents

Abstract

The present invention provides a method for transmitting a ringing tone to be transmitted through a wireless headset in the same tone as when a call is received to a mobile communication terminal.

The present invention establishes an auxiliary voice link between the mobile communication terminal and the wireless headset when a call is received by the mobile communication terminal, modulates the ring tone at the mobile communication terminal, and transmits the call to the wireless headset through the auxiliary voice link, so that the wireless headset is transferred from the mobile communication terminal. Demodulate the received signal and output it through the speaker, or when the call is received by the mobile communication terminal, transmit the modulated ring tone to the wireless headset through the activated voice link between the mobile communication terminal and the wireless headset, and the wireless headset demodulates it. If the mobile communication terminal user answers the ring tone, the call can be made by using the activated voice link.

Near Field Communication Module, Headset, Ring Tone

Description

Ring-Tone Outputting Method of Mobile Communication Terminal Using Wireless Headset}

1 is a flowchart illustrating a method for transmitting a ringing tone of a mobile communication terminal using a general wireless headset;

2 is a block diagram of a mobile communication terminal and a wireless headset according to the present invention;

3 is a flowchart illustrating a method for transmitting a ringing tone according to an embodiment of the present invention;

4 is a flowchart illustrating a ring tone transmission method according to another embodiment of the present invention.

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

100: mobile communication terminal 110: duplexer

120: wireless transceiver 130: modem chip

140: memory 150: sound source chipset

160: output device 170: input device

180: PCM encoder / decoder 190: short range wireless communication module

200: wireless headset 210: short-range wireless communication module

220: control unit 230: PCM encoder / decoder

240: speaker 250: memory

260: input device 270: display

The present invention relates to a method for transmitting a ringing tone of a mobile communication terminal, and more particularly, to a method for transmitting a ringing tone to be transmitted through a wireless headset in the same tone as when the call is sent to the mobile communication terminal. .

With the development of mobile communication technology, the mobile communication terminal is not only providing a voice call service but also has various functions such as a wireless internet function, a sound source playback function, a digital camera function, and a video recording function. In addition, in recent years, short-range wireless communication technology that enables two-way time-of-day communication without complicated wires by connecting various electronic devices (personal computers, mobile communication terminals, computer peripherals, home appliances, etc.) located in a short distance to each other through a wireless network. This is evolving and Bluetooth is a representative example of a near field communication standard.

Bluetooth can be realized at a relatively easy and low cost by using the 2.4 GHz band, and is mounted in a chip form on equipment such as a mobile communication terminal, a notebook computer, and a desktop computer, and can be connected to a device within 10 meters via a wireless link. Enables real-time transmission of voice and data. By using Bluetooth, data can be transmitted and received without incurring a separate communication cost, and there is an advantage in that the devices constituting the network can easily be controlled by Bluetooth. It's coming out.

Recently, a headset equipped with a Bluetooth module capable of short-range wireless communication with a mobile communication terminal has been developed by using the Bluetooth function of the mobile communication terminal. Such a headset is expected to be used for various purposes such as playing a sound source as well as supporting voice calls. do.

1 is a flowchart illustrating a method for transmitting a ringing tone of a mobile communication terminal using a general wireless headset.

As a caller using a wired or wireless terminal attempts to call a mobile communication terminal equipped with a Bluetooth module, the mobile communication system searches for an exchange and a base station where the corresponding mobile communication terminal is located, and an alerting signal to the mobile communication terminal. It transmits (S101).

The mobile communication terminal receiving the alerting signal is equipped with a Bluetooth module and checks whether a headset capable of communicating with the mobile communication terminal is in an active state. If the mobile communication terminal is active, the mobile communication terminal immediately activates the voice link. In the case of any one of a sniff state, a park state, and a hold state, the headset is switched to an activation mode (S103), and then a voice link is activated (S105). Voice links use SCO (Synchronous Connection-Oriented) links.

After the voice link is activated, the mobile communication terminal transmits the ringing tone through the output device (speaker) provided in the terminal itself, or transmits the ringing tone output request message to the headset (S107), so that the ringing tone is transmitted from the headset ( S109).

After that, when the user responds to the ringing tone output from the headset, the headset notifies that the incoming call has been accepted to the mobile communication terminal (S111), and the mobile communication terminal reports it to the mobile communication system (S113). The call is started between the terminal users.

When the call is initiated, it is necessary to convert the voice signal between the mobile communication terminal and the wireless headset.The voice signal received from the mobile communication system, that is, the enhanced variable rate code (EVRC) for the synchronous mobile communication system, and the AMR for the asynchronous mobile communication system. (Adaptive Multi-Rate) method is transmitted to the wireless headset is converted to the PCM signal from the mobile communication terminal, the voice signal input to the wireless headset by the mobile terminal user is converted to the EVRC or AMR signal and moved again It is transmitted to the mobile communication system through the communication terminal (S115).

Currently, among the mobile telecommunications additional services, a ringtone download service may be used. The ringtone, that is, the ringtone, has been produced in a high-level harmony in the MIDI format with the evolution of the mobile communication terminal. A communication terminal uses a codec such as a moving picture expert group (MPEG), an advanced audio codec (AAC), or the like. Both the MIDI format sound source and the sound source using the codec such as MPEG, AAC, etc. must be provided with a separate MIDI chip or codec chipset in order to output it from the mobile communication terminal.

By the way, if you want to output the ringing tone of the mobile communication terminal through the wireless headset, the wireless headset should be equipped with a sound source chipset such as a midi chip or a codec chipset, if the wireless headset is equipped with such a sound source chipset There is a problem that the price increases. In addition, in consideration of the price issue of the wireless headset, if the sound source chipset is not mounted, all incoming tones produced by the complex chords are output only as a single tone, which has a disadvantage in that the quality of service is deteriorated.

The present invention has been made to solve the above-mentioned problems and disadvantages, and can output a ringing tone consisting of complex chords without having a separate sound source chipset in a wireless headset that can communicate with a mobile communication terminal by a short range wireless communication module. There is a technical problem in providing a ring tone transmission method.

In order to achieve the above technical problem, the present invention establishes an auxiliary voice link between a mobile communication terminal and a wireless headset when a call is received by the mobile communication terminal, modulates the ring tone at the mobile communication terminal and transmits the call to the wireless headset via the auxiliary voice link. The wireless headset demodulates the signal received from the mobile communication terminal and outputs it through the speaker. Here, the short range wireless communication module may use Bluetooth, and the auxiliary voice link is one of two physical links, a synchronous connection-oriented link (SCO) link and an asynchronous connection link (ACL) link, for processing baseband packets in Bluetooth. Either one can be used. The assignment of an auxiliary voice link is made possible because three synchronized voice channels can be assigned simultaneously between devices equipped with a Bluetooth module.

In addition, the present invention transmits a modulated ring tone to the wireless headset via the activated voice link between the mobile communication terminal and the wireless headset when the call is received to the mobile communication terminal, the wireless headset demodulates it and outputs it, Answering the ring tone allows a call to be made using an active voice link.

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

2 is a block diagram of a mobile communication terminal and a wireless headset according to the present invention.

First, the mobile communication terminal 100 is connected to the antenna duplexer 110 to operate as a band pass filter for separating the transmission frequency and the reception frequency, the wireless transceiver 120 for separating the signal transmitted and received through the antenna into a predetermined frequency band ), A memory chip connected to the modem chip 130 and the modem chip 130 that process a radio section protocol between the mobile communication terminal and the mobile communication system as a core part of the mobile communication terminal and perform a vocoder function and a signal demodulation / demodulation function. ), A sound source chipset 150 for sampling a sound source to be output from the mobile communication terminal 100, a speaker for outputting a sound source sampled from the sound source chipset 150 and a display for displaying an image output through the LCD driver Output device 160, input device 170 for receiving a signal input by the user, modulating the signal output from the modem chip 130 and short-range wireless communication And a PCM encoder / decoder 180 for demodulating a signal input from the scene module 190. Here, the short range wireless communication module 190 may be implemented as a Bluetooth module.

On the other hand, the wireless headset 200 is implemented in Bluetooth, etc., the short-range wireless communication module 210 for communicating with a device equipped with a short-range wireless communication module, the controller 220 for controlling the overall operation of the wireless headset 200 ), A PCM encoder / decoder 230 and a PCM for receiving and demodulating a signal received by the short range wireless communication module 210 from the control unit 220 and modulating a signal to be output through the short range wireless communication module 210. Speaker 240 for outputting a voice signal of the demodulated signal through the encoder / decoder 230, Memory 250 for storing information necessary for the operation of the wireless headset, Input for receiving a signal input by the user And a display 270 for outputting a signal for visual presentation of the demodulated signal via device 260 and PCM encoder / decoder 230.

When the mobile communication terminal 100 and the wireless headset 200 having the above-described configuration exist in a short distance and a call is received by the mobile communication terminal 100, the mobile communication terminal 100 reports the fact that the call is received. When notified of 200, the wireless headset 200 outputs a ringing tone by a sound source (single tone) that is supported by itself. In this case, it is not possible to support the sound source produced by the composite sound may cause user complaints, and when the sound source chipset 280 is equipped to solve this problem, the price of the wireless headset 200 rises to increase the penetration rate of the wireless headset 200. The present invention proposes a method for outputting a ringing tone made of a compound sound in a wireless headset without mounting a separate sound source chipset.

The first solution is that when using Bluetooth as a short range wireless communication module, three synchronization voice channels can be simultaneously assigned between devices equipped with a Bluetooth module. The ring tone modulated by the mobile communication terminal is transmitted to the wireless headset, and the wireless headset demodulates and outputs it. In the second method, when a Bluetooth is used as a short range wireless communication module, a voice channel allocated between the mobile communication terminal and the wireless headset is transmitted. When the call is received by time division, the mobile communication terminal is used as a channel for transmitting the modulated ring tone and after the user responds, it is used as a voice call channel. This will be described in detail with reference to FIGS. 3 and 4 as follows.

In the following description, the incoming call may be any one of a voice call, a voice message such as voice push, a short message, and a multimedia message.

3 is a flowchart illustrating a method of transmitting a ringing tone according to an embodiment of the present invention, which shows a case of transmitting a ringing tone using an auxiliary voice link.

As a caller using a wired or wireless terminal attempts to call a mobile communication terminal equipped with a short-range wireless communication module (Bluetooth module), the mobile communication system searches for a switch and a base station where the mobile communication terminal 100 is located and moves. An alerting signal is transmitted to the communication terminal 100 (S201).

The mobile communication terminal 100 receiving the alerting signal is equipped with a Bluetooth module and checks whether the headset 200 capable of communicating with the mobile communication terminal 100 is in an active state. If not activated, that is, any one of the sniff state, park state, and hold state, after switching the headset to the active mode (S203), activates the voice link. (S205). Voice links use SCO (Synchronous Connection-Oriented) links.

After the voice link is activated, the mobile communication terminal 100 sets up an auxiliary voice link between the wireless headsets 200 (S207). The secondary voice link may use either a Synchronous Connection-Oriented (SCO) or an Asynchronous Link-Less (ACL) link that is pre-allocated before the SCO link setup. In other words, for communication between devices equipped with a Bluetooth module, an ACL link is assigned first and then an SCO link is assigned based on this. Therefore, in addition to the SCO link to be used for the actual voice call, a separate secondary SCO link is set up or an auxiliary ACL link is allocated. Use it as a voice link.

After the auxiliary voice link is set up, the mobile communication terminal 100 outputs the incoming sound source from the sound source chipset 150 to the PCM encoder / decoder 180, and the PCM encoder / decoder 180 modulates it (S209). ). PCM modulation can be used for ring tone modulation. Thereafter, the modulated ring tone is transmitted to the PCM encoder / decoder 230 of the wireless headset 200 through the short range wireless communication module 190 and 210 (S211). The modulated ring tone is connected to the auxiliary voice link set up in step S207. Is sent through.

The wireless headset 200 receiving the ring tone demodulates it in the PCM encoder / decoder 230 (S213) and outputs the demodulated ring tone through the speaker 240 (S215).

In this case, when the incoming call is a voice call, the mobile communication terminal user recognizes and responds to the incoming call by the output of the ringing tone, and the wireless headset 200 notifies the mobile communication terminal 100 that the incoming call has been accepted (S217). ), And releases the auxiliary voice link established between the mobile communication terminal 100 and the wireless headset 200 (S219), the mobile communication terminal reports it to the mobile communication system (S221), and thus the incoming mobile communication with the caller. The call is started between the terminal users.

When the call is initiated, it is necessary to convert the voice signal between the mobile communication terminal and the wireless headset.The voice signal received from the mobile communication system, that is, the enhanced variable rate code (EVRC) for the synchronous mobile communication system, and the AMR for the asynchronous mobile communication system. (Adaptive Multi-Rate) method is transmitted to the wireless headset is converted to the PCM signal from the mobile communication terminal, the voice signal input to the wireless headset by the mobile terminal user is converted to the EVRC or AMR signal and moved again It is transmitted to the mobile communication system through the communication terminal (S223).

As described above, in the present embodiment, when a call is received by the mobile communication terminal, an auxiliary voice link is set up between the mobile communication terminal and the wireless headset, and the ring tone is modulated by the mobile communication terminal and transmitted to the wireless headset through the auxiliary voice link. By demodulating and outputting the ringing tone received through the auxiliary voice link, the ringing tone of the rich sound source can be transmitted.

4 is a flowchart illustrating a method of transmitting a ringing tone according to another embodiment of the present invention, which illustrates a case in which a ringing tone is transmitted through a voice link using a time difference between the ringing tone sending time and the call start time.

As a caller using a wired or wireless terminal attempts to call a mobile communication terminal equipped with a short-range wireless communication module (Bluetooth module), the mobile communication system searches for a switch and a base station where the mobile communication terminal 100 is located and moves. An alerting signal is transmitted to the communication terminal 100 (S301).

The mobile communication terminal 100 receiving the alerting signal is equipped with a Bluetooth module and checks whether the headset 200 capable of communicating with the mobile communication terminal 100 is in an active state. If not activated, that is, one of the sniff state, the park state, and the hold state, after switching the headset to the active mode (S303), activates the voice link. (S305). Voice links use SCO (Synchronous Connection-Oriented) links.

After the voice link is set up, the mobile communication terminal 100 outputs the incoming sound source from the sound source chipset 150 to the PCM encoder / decoder 180, and the PCM encoder / decoder 180 modulates it (S307). . PCM modulation can be used for ring tone modulation. Thereafter, the modulated ring tone is transmitted to the PCM encoder / decoder 230 of the wireless headset 200 through the short range wireless communication module 190 and 210 (S309). The modulated ring tone is transmitted through the activated voice link in step S305. Is sent.

The wireless headset 200 that has received the ring tone demodulates it in the PCM encoder / decoder 230 (S311), and outputs the demodulated ring tone through the speaker 240 (S313).

Here, when the incoming call is a voice call, the mobile communication terminal user recognizes the incoming call by the output of the ringing tone and responds to it, and the wireless headset 200 notifies the mobile communication terminal 100 that the incoming call has been accepted (S315). The mobile communication terminal reports this to the mobile communication system (S317), whereby a call is initiated through a voice link between the caller and the called mobile communication terminal user.

When the call is initiated, it is necessary to convert the voice signal between the mobile communication terminal and the wireless headset.The voice signal received from the mobile communication system, that is, the enhanced variable rate code (EVRC) for the synchronous mobile communication system, and the AMR for the asynchronous mobile communication system. (Adaptive Multi-Rate) method is transmitted to the wireless headset is converted to the PCM signal from the mobile communication terminal, the voice signal input to the wireless headset by the mobile terminal user is converted to the EVRC or AMR signal and moved again It is transmitted to the mobile communication system through the communication terminal (S319).

In the present embodiment, when a call is received to the mobile communication terminal by using the time difference between the ringing tone transmission time and the start time of the voice call, the mobile communication terminal modulates the ringing tone and transmits the ringing tone to the wireless headset through the voice link. By simply demodulating and outputting the ringing tone received through the user, the composite sound source set by the user can be output as it is.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

According to the present invention described above, when a call is received by the mobile communication terminal, the mobile communication terminal modulates the ring tone and transmits it to the wireless headset through a voice link or an auxiliary voice link, and the wireless headset merely demodulates and outputs the modulated ring tone. Therefore, it is possible to output rich ringing tones without installing a separate expensive audio chipset in the wireless headset.

In addition, when a music file or the like is reproduced by the sound source transmission method, the voice terminal can be implemented at low cost.

Claims (6)

Receiving an alerting signal to the mobile communication terminal having a wireless headset capable of communicating with the mobile communication terminal by a short range wireless communication module capable of setting up an auxiliary voice link; Checking, by the mobile communication terminal, whether the wireless headset is activated and switching the communication mode between the mobile communication terminal and the wireless headset to an activated state; Activating a voice link between the mobile communication terminal and the wireless headset; Setting up an auxiliary voice link between the mobile communication terminal and the wireless headset; Receiving, by the mobile terminal, an alerting signal from a sound source chipset mounted in the mobile terminal; Transmitting the modulated alerting signal to the wireless headset via the secondary voice link; And The wireless headset demodulating the modulated alerting signal and outputting it through a speaker; Ring tone transmission method comprising a. Receiving an alerting signal from the short range wireless communication module to the mobile communication terminal having a wireless headset capable of communicating with the mobile communication terminal; Checking, by the mobile communication terminal, whether the wireless headset is activated and switching the communication mode between the mobile communication terminal and the wireless headset to an activated state; Activating a voice link between the mobile communication terminal and the wireless headset; Receiving, by the mobile terminal, an alerting signal from a sound source chipset mounted in the mobile terminal; Transmitting the modulated ring tone to the wireless headset via the voice link; And Demodulating the modulated ring tone by the wireless headset and outputting through a speaker; Ring tone transmission method comprising a. The method of claim 1, The short range wireless communication module is a Bluetooth module, and the auxiliary voice link is any one of a SCO (Synchronous Connection-Oriented) or an Asynchronous Connection-Less (ACL) link. The method of claim 1, The incoming call is a voice call, and after the wireless headset outputs an alerting signal, the wireless headset notifying the mobile communication terminal that the call has been accepted as the mobile terminal user responds to the incoming call; Releasing the secondary voice link; And Initiating a voice call as the mobile communication terminal reports that the call has been accepted to the mobile communication system; The voice signal transmitted from the mobile communication system to the mobile communication terminal after initiation of a voice call is transmitted to the wireless headset through the voice link, and the voice signal input by the mobile communication terminal user to the wireless headset. Is transmitted to the mobile communication terminal through the voice link and is transmitted to the mobile communication system. The method according to claim 1 or 2, The short range wireless communication module is a Bluetooth module, and the voice link is a Synchronous Connection-Oriented (SCO) link. The method of claim 2, The incoming call is a voice call, and after the wireless headset outputs an alerting signal, the wireless headset notifying the mobile communication terminal that the call has been accepted as the mobile terminal user responds to the incoming call; Initiating a voice call as the mobile communication terminal reports that the call has been accepted to the mobile communication system; The voice signal transmitted from the mobile communication system to the mobile communication terminal after initiation of a voice call is transmitted to the wireless headset through the voice link, and the voice signal input by the mobile communication terminal user to the wireless headset. Is transmitted to the mobile communication terminal through the voice link and is transmitted to the mobile communication system.

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