KR20040059164A - Equipment and Method for Providing Background Sound Service - Google Patents

Abstract

PURPOSE: An apparatus and a method for providing a background music service are provided to allow a user to receive a background music service at a low cost by making a system side provide the service. CONSTITUTION: A linear PCM conversion module(11) converts analog voice data into linear PCM voice data. A database(12) stores background music data having a linear PCM data form. A call center(20) receives background music information from a user and selects background music data from the database(12). A mixer(13) mixes the linear PCM voice data and the background music data selected by the user. An encoding module(14) modulates mixed signals according to a communication channel. A decoding module(15) decodes data received through the communication channel. A linear PCM inverse-conversion module(16) converts an output signal of the decoding module(15) into analog voice data.

Description

Equipment and method for providing background music service {Equipment and Method for Providing Background Sound Service}

The present invention relates to a communication service, and more particularly, to an apparatus and method for providing a background music service suitable for providing call background music to a user in a voice call.

Existing wired / wireless telephone systems have faithfully performed the main function of transmitting voice signals from a telephone or mobile terminal to the other's telephone through a communication channel. However, with the recent emergence of PCS, the demand for various services has increased. It became.

Accordingly, a coloring service that transmits music other than voice using a mobile phone and transmits music data instead of ring back-tone has emerged.

Telephones are no longer simply transmitting voice signals, but are becoming a means of providing a variety of additional services.

As part of this additional service, there is a function of providing background music during a call.

Conventionally, when a phone call is made, only the other party's voice or the surrounding sound can be heard, and it is easy to feel bored or bored for reasons such as interrupting the conversation for a while or having to keep listening to the other party's voice.

As such, in order to eliminate boredom and boredom during a call, especially when a comfortable and emotionally calm atmosphere is required, such as a call between lovers or a mail-order sale, call satisfaction may be improved. will be.

Next, the conventional background music providing technique will be described.

Conventionally, a communication device having a background music playing function is used to provide background music during a call.

For example, there is a communication device having a background sound reproduction function of Korean Laid-Open Patent Publication No. 2002-91273 and a mobile terminal having a background music function of Korean Laid-Open Patent Publication No. 2001-61331.

In the related art, the communication device includes a means for storing background music, and the communication device synthesizes and outputs the background music selected by the user during the voice call to provide the background music during the call.

Therefore, in order to listen to the background music during a call, a communication device having a background music playback function must be used. Therefore, the existing communication device must be replaced with a background music playback function or a background music playback function must be added to the existing communication device.

However, in order to use a background music service, such as replacing a communication device or adding a separate function to the communication device is difficult, so it is difficult to apply the actual service.

An object of the present invention is to provide an apparatus and method for providing a background music service capable of providing a background music service function to a user using an existing communication device.

An apparatus for providing a background music service for achieving the above object is a linear PCM conversion module for converting analog voice data into linear PCM voice data, a database for storing background music data in the form of linear PCM data, and from the user A call center for receiving background music information and selecting background music data from the database according to the received background music information, a mixer for mixing the linear PCM voice data with the selected background music data by the user, and by the mixer; An encoding module for modulating the mixed signal according to a communication channel, a decoding module for decoding data received through the communication channel, and a linear PCM inverse conversion module for converting the output signal of the decoding module into analog voice data. do.

In more detail, the encoding module is an A / D converter when the communication channel is wired and a vocoder when the communication channel is wireless.

More specifically, the de-encoding module is a D / A converter when the communication channel is wired and a vocoder when the communication channel is wireless.

The background music service method using the device comprises the steps of providing a menu to select the background sound and the volume for the service request, receiving the selected background sound and volume information, receiving a recipient telephone number, Searching the music database using the background sound and volume information to find the background music data, and when the call is initiated, mixing and transmitting the background music data to the voice data.

1 is a view showing a background music service providing apparatus according to the present invention,

2 is a flowchart illustrating a background music service method according to the present invention.

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

11: linear PCM change module 12: background music database

13: mixer 14: encoding module

15 decoding module 16 linear PCM inverse transform module

20 call center

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

1 is a view showing a system for providing a background music service according to the present invention, a linear pulse code modulation (PCM) conversion module 11, background acoustic database 12, mixer 13, encoding module 14 ), Decoding module 15, linear PCM inverse transform module 16, and call center 20.

The linear PCM conversion module 11 -law / a-law Converts analog voice data S (t) in the form of Pulse Code Modulation (PCM) into linear PCM voice data S (n).

As such, the reason for converting the analog voice data S (t) into the linear PCM voice data S (n) is that the digital domain, that is, the linear linear code modulation (PCM) environment, than the analog domain. This is because the volume control and mixing are convenient at.

The background acoustic database 12 is a database composed of background music files in the form of linear PCM data. The background music service provider selects and selects background music by grasping the needs of the service user in advance. Background music should be converted into linear PCM data and stored in the background sound database 12.

The mixer 13 performs background music data selected by the user among the linear PCM voice data S (n) from the linear PCM conversion module 11 and the background music files of the background acoustic database 12 ( b (n)) is mixed to output the W (n) signal.

The encoding module 14 modulates and outputs the W (n) signal mixed by the mixer 13 in accordance with a wired or wireless communication channel.

The encoding module 14 may be implemented using an A / D converter when the communication channel is wired, or by using a vocoder when the communication channel is wireless.

The output signal of the encoding module 14 is then received by the decoding module 14 via a communication channel and demodulated into a W (n) signal.

In this case, the decoding module 14 may be implemented using the D / A converter when the communication channel is wired, or by using a vocoder when the communication channel is wireless.

The linear PCM inverse transform module 15 inversely transforms the output signal W (n) of the decoding module 14 against the linear PCM transform module 11. -law / a-law Output PCM voice data, W (t).

The call center 20 provides a menu to the user to select music files stored in the background music database 12 when a call is received from the user. The selection information is transmitted to the background music database 12.

The background music service process using the exchange is as follows.

FIG. 2 is a flowchart illustrating a background music service method according to the present invention. When a call is received from a user who wants to use a background music service in a call center (S201), the call center provides a background sound and a volume desired by the user. A menu is provided for selection (S202).

Although the voice and data types can be used as the menu providing method, it is preferable that the voice type is used for all existing communication devices.

Subsequently, when the background sound and the volume information are received from the user in response to the provided menu (S203), the telephone number input menu of the receiving user is provided to the user (S204).

Subsequently, when the receiving telephone number is received from the user in response to the provided telephone number input menu (S205), the call center transmits the background sound and volume information selected by the user to the transmitting / receiving exchange (S206).

The exchanger of the wired / wireless mobile communication system searches the background sound database 12 with the background sound and volume information received from the call center to find the background music data b (n) (S207).

Thereafter, when the call is started, the background music data b (n) is mixed with the voice data S (n) of the linear PCM data and transmitted to the communication channel (S208).

The apparatus and method for providing a background music service of the present invention as described above is to provide a background music service on the system side, so a user who uses the service can receive a service without having to replace a communication device or add a function to the communication device. You don't have to pay much.

Therefore, there is an effect that can spread the background music service more widely in a short time.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the examples, but should be defined by the claims.

Claims (4)

A linear PCM conversion module for converting analog speech data into linear PCM speech data; A database for storing background music data in the form of linear PCM data; A call center for receiving background music information from a user and selecting background music data from the database according to the received background music information; A mixer for mixing the linear PCM voice data with the background music data selected by the user; An encoding module for modulating a signal mixed by the mixer according to a communication channel; A decoding module for decoding data received through a communication channel; And a linear PCM inverse transform module for converting the output signal of the decoding module into analog voice data. The method of claim 1, The encoding module The apparatus for providing a background music service, characterized in that the A / D converter when the communication channel is wired, and the vocoder when the communication channel is wireless. The method of claim 1, The de-encoding module The apparatus for providing a background music service, characterized in that the D / A converter when the communication channel is wired, and the vocoder when the communication channel is wireless. Providing a menu to select a background sound and a volume for the service request; Receiving the selected background sound and volume information; Receiving a recipient phone number; Finding a background music data by searching a music database using the background sound and volume information; And when the call is initiated, mixing and transmitting the background music data to voice data.