KR20020038039A - Voice message transceiver apparatus and method thereof - Google Patents

Abstract

PURPOSE: An apparatus for transmitting and receiving a voice message and a method therefor are provided to store a message received in a receiving mobile terminal or a memory of an SMC(Short Message Center) as a PCM(Pulse Code Modulation) format and hear the stored message through a codec without paying a specific call charge. CONSTITUTION: A speaker outputs a voice. A transmitting and receiving unit(2) connects to a duplexer(1) and transmits and receives an RF(Radio Frequency) signal. A voice processing unit(3) comprises a modem(3a) for connecting to the transmitting and receiving unit(2) and modulating and demodulating data to be converted into a PCM type, a flash memory(3b') for storing data compressed as a QCEIP(Qualcomm Code Exited Linear Prediction) by the modem(3a), and a codec(3c) for converting the data stored in the flash memory(3b') and outputting the converted data to the speaker.

Description

Voice message transceiver apparatus and method thereof

The present invention relates to a method and apparatus for transmitting and receiving voice messages, and in particular, by transmitting a voice file in one direction so that the voice message is stored in a memory of a mobile receiving terminal or a short message center, the receiver can listen to the sender's message without paying a separate call fee. The present invention relates to a mobile terminal voice message transmission and reception method and apparatus.

In general, mobile terminals have limited radio resources allocated to and used by multiple subscribers at the same time. Therefore, due to their characteristics, incoming calls are less successful than landlines, and they consume more power. Therefore, turn off the mobile phones (terminals). Since there are many subscribers who use ON, the incoming call success rate is getting lower.

Therefore, the mobile telephone exchange provides a voice mailbox service function using a voice mailbox system as a way to overcome the low rate of incoming calls.

1 is a block diagram of a conventional mobile telephone (terminal).

As shown therein, a duplexer (1) which is connected to an antenna (not shown) and which is a coupler for radiating radio waves efficiently without mutual interference by sharing the antenna with a transceiver (2, transceiver) having different frequency bands, And a control unit (not shown) for processing the signals input from the transmitting and receiving unit 2 and outputting a voice signal to the transmitting / receiving unit 4 and controlling the respective components.

The voice processing section 3 includes a modem 3a for demodulating digital data (text message, etc.) received at the reception section of the transmission and reception section 2, and a memory for temporarily storing data converted by the modem ( 3b) and a codec 3c for converting the data converted into the PCM method by the modem into analog and outputting the analog signal to the transmitter / receiver unit 4.

2 is a block diagram of a voice storage process of a conventional mobile terminal.

First, enter the receiver's telephone number through the keypad (not shown) in the sender mobile transmission terminal 21, press the call button, the mobile transmission terminal 21 transmits (1, TX) to the switching center 23, the switching station is the mobile receiving terminal Search for (22). In this case, when the receiver mobile terminal is found, a call signal is sent to the receiver mobile terminal 22, and the receiver makes a call through a call button (2, RX), and if the receiving mobile terminal is not found or there is no response (3). (No Response (NR)), the switching center 23 (MSC (Mobile Switching Center)) indicates that there was an outgoing call to the calling mobile terminal (4, NRI (No Response Information)) and the receiving mobile terminal 22. (4, MD (Message Display)). When the sender mobile terminal receives the non-call information, the sender sends a voice message to the switching center (5, VS (Voice Send)), and the switching center connects a short text message center 24 (SMC) by wire. The voice message is stored in the voice mail box of the short message server (SMS).

In addition, when the receiver finds the mobile terminal but sends a reject signal from the terminal itself, the process is carried out to the voice mail box.

After that, when the message is stored in the voice mailbox and the receiving mobile terminal accesses the switching center, the switching center 23 sends the voice message information to the receiving mobile terminal. Accordingly, the receiving mobile terminal presses a call button and is stored in the SMS in the SMC. You will receive voice.

The home location register (HLR) of FIG. 2 is connected to the switching center 23 and functions as a database management system for managing various types of information of mobile subscribers. And so on.

However, in the conventional mobile transmitting terminal, a text message can be sent to the receiver, but the voice message is voiced to the switching center only in a specific case, that is, when the receiver is not available, there is no response from the mobile receiving terminal, or when the terminal itself sends a rejection signal. You can save it and leave it.

In addition, since the voice message is also stored in a short message center connected to the switching center, the receiver must also pay the call charge separately because the receiver must communicate with the switching center to listen to the stored message.

Accordingly, the present invention is proposed to solve the above-mentioned conventional problems, and stores the received message in the memory of the receiving mobile terminal or the short message center in PCM form, and stores the stored message without paying a separate call fee through a codec. It is intended to provide an apparatus and method for transmitting and receiving voice messages so that a user can listen.

1 is a block diagram of a conventional mobile phone (terminal)

2 is a block diagram of a voice storage process of a conventional mobile terminal

3 is a block diagram of a mobile telephone (terminal) according to an embodiment of the present invention.

4 is a block diagram of voice storage and output in the voice processor of the present invention;

5 is a block diagram of data transmission between a terminal of the present invention and an exchange.

Figure 6 is a block diagram of the voice storage process of the present invention mobile terminal

Explanation of symbols on the main parts of the drawings

1 Duplexer 2 Transmitter / Receiver

3: voice processing unit 4: transmission / reception unit

21: mobile transmitting terminal 22: mobile receiving terminal

23: exchange office 24: short message center

25: home position register

An apparatus for transmitting and receiving a voice message of the present invention includes a speaker for outputting voice, a duplexer serving as a transceiver, a transmitter / receiver connected to the duplexer to transmit / receive an RF signal, and a transmitter / receiver connected to modulate / demodulate data. And a voice processing unit including a modem for converting to a PCM method, a memory for storing data compressed with QCEIP converted by the modem, and a codec for converting the data stored in the memory and outputting the data to the speaker.

In addition, the voice storage method of the system capable of transmitting / receiving the voice of the present invention includes transmitting a message from the transmitting side to the switching center, searching for the receiving side by the switching station, and transmitting the search result to the transmitting side through the switching station. And transmitting the message in a mobile receiving terminal or a short message center according to the transmitted information.

QCEIP is Quqlcomm Code Exited Linear Prediction, which is a compression method that removes the part that can be removed through periodicity and recodes it through Codebook provided by Qualcomm.

Hereinafter, an embodiment according to the technical spirit of the mobile terminal voice message transmission and reception apparatus and method of the present invention as described above are as follows.

3 is a block diagram of a mobile telephone (terminal) according to an embodiment of the present invention.

As shown therein, a duplexer (1) which is connected to an antenna (not shown) and is a coupler (2, transmitter and receiver) having a different frequency band to share the antenna and radiate radio waves efficiently without mutual interference, and the And a voice processing unit 3 for processing the signals input from the transmitting and receiving unit 2 to output / input a voice signal to the transmitting / receiving unit 4, and a control unit (not shown) for controlling each component.

In the voice processing section 3, a modem 3a for demodulating digital data (text message / voice message, etc.) received at the receiving section of the transmitting and receiving section 2, and the PCM signal converted by the modem are converted into a PCM form. A flash memory (3b ') for storing voice files, and data converted into a PCM method by the modem and stored in the flash memory (3b') into analog voice signals and outputted to the handset (4). Codec 3c.

FIG. 4 is a block diagram of voice storage and output in the voice processing unit 3, and when there is received data (voice or text, etc.), the modem (3) outputs a WE (Write Enable) signal and then outputs a PCM form. Audio files are stored in the flash memory 3b '. After the RE (Read Enable) signal is output from the modem 3a to the flash memory, the data voice file compressed with the stored QCEIP is transmitted to the codec 3c, and the codec converts the data into a digital signal and transmits the data to the modem. According to the read enable signal of the modem, the codec outputs the stored voice data through the handset 4. In the above, the modem and the codec are input and output in the form of digital signals.

On the contrary, the voice data input through the handset 4 is stored as a PCM type file in the memory 3b 'as a PCM signal through the codec 3c, and the receiver's number is input through the keypad (not shown). When the voice button on the keypad is pressed, a file stored in the memory 3b 'is read from the modem 3a and transmitted to the opposite terminal using a duplexer 1 and an antenna (not shown).

FIG. 5 is a block diagram of data (especially voice) transmission between the terminals 21 and 22 and the switching center 23, in which reference numerals refer to those used in FIG.

Before transmitting the voice file, the mobile transmitting terminal 21 first transmits the recognition signal 1 (which can be set using a separate key on the keypad or a program) to the switching center 23, and then transmits the voice file. (2) Also, the voice file transmission completion signal 3 indicating that the voice file is finished is transmitted in the same manner as the recognition signal transmission.

On the other hand, the exchange station 23 transmits a voice file (5) after transmitting a recognition signal (4) indicating that the file to be transmitted to the mobile receiving terminal 22 is a voice file, and transmits the voice file together with the voice file transfer completion signal. Complete (6). The recognition / transmission completion signal can be said to be the same as that sent from the mobile transmitting terminal to the switching center.

6 is a block diagram of a voice storage process of the mobile terminal of the present invention.

First, enter the receiver's telephone number through the keypad (not shown) in the sender mobile terminal 21, press the call button, the mobile transmitting terminal 21 transmits (1, TX) to the switching center 23, and the switching center receives the mobile receiving terminal ( 22). In this case, when the receiver mobile terminal is found, a call signal is sent to the receiver mobile terminal 22 (2, RX), and the receiver makes a call through a call button, and the like, if the mobile receiver cannot be found or there is no answer ( In the case of 3, NR (No Response), the exchange station 23 informs the sender mobile terminal that the location of the receiving mobile terminal was not found (5, NF (Not Found)) and the call impossible information (4, NRI (No Response Information)). ). When the sender mobile terminal receives the call impossible information, the sender sends a voice file to the switching center 23 (Voice File Send (VFS) 8), and the switching center sends the received voice file to the receiving mobile terminal 22. (7, VFR (Voice File Receive)).

On the other hand, when there is no response (3, NR (No Response)) because the mobile receiver is not found, the exchange 23 receives information (5, NF (Not Found)) indicating that the sender mobile terminal has not found the location of the receiving mobile terminal. In this case, the mobile transmitting terminal 22 transmits a voice file to the switching center 23 (8, VFS (Voice File Send)). In response, the exchange stores the voice file (10, VFS) in a voice mail box of a short message server (SMS) in a short text message center (24) connected by wire. 22) automatically transmits the stored voice file when it is possible to communicate with the switching center 23 so that the mobile receiving terminal can receive it (9, VFR (Voice File Recive)).

The home location register (HLR) of FIG. 6 is connected to the switching center 23 to serve as a database management system for managing various types of information of a mobile subscriber, and works in conjunction with several switching stations. Perform functions such as registration.

As described above, in the present invention, when the mobile receiving terminal does not respond, the exchange transmits information indicating that there is no response to the mobile transmitting terminal, and the mobile transmitting terminal stores the voice file in the memory of the mobile transmitting terminal. The voice file can be received in the memory of the mobile receiving terminal via the switching center.In addition, when the switching station cannot find the mobile receiving terminal, it transmits information that the mobile receiving terminal was not found to the mobile receiving terminal. The terminal stores the voice file in the short message center (SMC) via the switching center, and if the mobile receiver is found afterwards, it transmits the voice file to the mobile receiver terminal or the SMC. Save the voice file so that the mobile receiver So see receive a file occurs, such as the sender only effective to pay the toll.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

As described above, the voice message transmission and reception apparatus and method according to the present invention allow the mobile receiver to store the voice file in the mobile receiver terminal in a one-way forcibly, thereby allowing the mobile receiver terminal to pay the stored voice file separately. If the exchange does not find the mobile receiving terminal, the mobile transmitting terminal stores the voice file in the Short Message Center (SMC) via the switching center, and then sends the voice file if it finds the mobile receiving terminal. By doing so, only the sender pays for the call.

Claims (5)

In a system capable of transmitting and receiving voice, A speaker for outputting voice; A duplexer which is a handset converter; A transmitter / receiver connected to the duplexer for transmitting / receiving an RF signal; A modem connected to the transmission / reception unit for converting data into a modulation / demodulation and PCM scheme, a memory for storing data compressed with QCEIP converted by the modem, and converting the data stored in the memory to the speaker An apparatus for transmitting / receiving voice messages, comprising a voice processing unit having a codec. The voice processing unit of claim 1, further comprising: a modem for outputting a W.E signal and an R.E signal to a flash memory for the received data; A flash memory for transmitting data stored in a compressed state based on the signal to a codec; And a codec for converting the data stored in the compressed state into a digital signal and transmitting the same to a modem. In the voice storage method of the system capable of transmitting and receiving voice, Transmitting a message from the transmitting side to the switching center, searching for the receiving side by the switching center, transmitting the search result to the transmitting side through the switching station, and transmitting the message according to the transmitted information. Voice message transmission and reception method comprising the step of storing in the terminal or short message center. The mobile station of claim 3, wherein when the mobile receiving terminal does not answer, the exchange transmits information indicating that the receiving mobile terminal has not found the location of the receiving mobile terminal and non-call information, and wherein the sender mobile terminal transmits the non-call information. And if so, the sender sends a voice file to the switching center, and the switching center transmits the received voice file to a receiving mobile terminal. The method according to claim 3, wherein when the exchange does not find the mobile receiving terminal and there is no response, the exchange transmits information indicating that the receiving mobile terminal has not been located to the sender mobile terminal, wherein the mobile transmitting terminal transmits a voice file to the switching center, The exchange station stores the voice file in the voicemail box of the SMS in the short text message center, and when the mobile receiver terminal can communicate with the exchange station, the exchange station automatically transmits the stored voice file so that the mobile receiver terminal can receive the voice file. Voice message transmission / reception method.