KR19990016902A - Voice mail search method using personal mobile communication - Google Patents

Abstract

The present invention relates to a voice mail retrieval technique using personal mobile communication (PCS) which enables a high speed retrieval of a voice mail stored in a target terminal based on a voice command using a keyword and a service for transmitting retrieved voice mail information. To this end, the present invention comprises the steps of: transmitting a search request message including recognition information of a remote target terminal targeted for voice mail search, a keyword for voice mail search, and a password of the target terminal from the PCS terminal to the voice recognition server; When the search request message is received, analyzing the received message and accessing the target terminal to the voice recognition server; Comparing the received password extracted from the received message with a preset password of the target terminal and receiving voice mail information stored in the target terminal in a memory area of the voice recognition server; Searching for a voice mail stored in a memory area by using a keyword extracted from a received message; Transmitting a search result notification message corresponding to the search result, when there is no voice mail to find, to the PCS terminal and releasing the connection; And transmitting the retrieved voice mail information to the PCS terminal in response to the user request message and releasing the connection when the voice mail to be found exists.

Description

Voice mail search method using personal mobile communication

The present invention relates to a voice mail retrieval technique using PERSONAL COMMUNICATION SYSTEM (PCS), and more particularly, to retrieve a voice mail received and stored at a remote server or a personal terminal using the PCS. The present invention relates to a voice mail retrieval method using a PCS suitable for receiving voice mail information through a PCS.

Recently, with the development of semiconductor and communication technology, research and practical use of mobile communication (or personal mobile communication) is actively conducted everywhere, and this mobile communication is digital that can accommodate more subscribers in analog cellular system. It's changing to a cellular system. In addition, the access method of mobile communication is also gradually changing from time division multiple access (TDMA) to code division multiple access (CDMA).

At present, the personal mobile communication in which the practical research is completed and the service is currently in progress, for example, a wireless telephone (aka CT-1), a call-only terminal (aka CT-2), an analog or digital cellular phone ( Or a mobile phone), a PCS that is in the spotlight as a next-generation personal mobile communication, and a common frequency communication (TRS). The present invention relates to a user service improvement technique using a PCS.

On the other hand, PCS terminals for pedestrian-oriented multimedia mobile communication services require a plurality of base stations for communication services, such as CT-2 and mobile phones. Unlike mobile phones using frequencies of 800 MHz, 1.7- Using a frequency range of 1.9 GHz, it is possible to provide a clear communication service without any interference and noise.In addition, unlike a mobile phone that can only talk on the phone while on the move, it is a high-tech multimedia that can wirelessly transmit not only voice but also data and video information. Appliance.

In addition, unlike a mobile phone having an 8 Kbps data rate using an 8 Kbps vocoder, PCS has a wider bandwidth of 13 Kbps and adopts CDMA as its transmission method. Thus, PCS can provide faster and higher quality communication services.

On the other hand, two methods are currently considered as a method for sending and receiving data with PCS. In the first method, a PCMCIA card is used to connect an HPC (High Performance Computer) and a PCS terminal using a PCMCIA card, such as a mobile phone. The second proposal is to connect HPC and PCS terminals directly.

In other words, the difference between the two is in which equipment implements the Transmission Control Protocol / Internet Protocol (TCP / IP) protocol used as the communication protocol in the PCS.

At this time, since the first case using the card uses the TCP / IP protocol in the interval from the PCS terminal to the service receiving station, the PCMCIA card is responsible for modulating the data signal to TCP / IP. In addition, in the second case, which is used without a card, the TCP / IP protocol used by the HMC is used as it is throughout the PCS.

In recent years, with the advent of the information age, the use of the Internet, which is called a network of networks, has been widely expanded in each field. Such an Internet realizes a connection between distant host computers (or servers). It provides functions such as data retrieval, data transmission and data reception between them.

On the other hand, there is provided a service for retrieving voice mail information stored in a personal computer or various servers and receiving the retrieved information by voice using PCS, a next-generation personal mobile communication, not a computer. In the voice mail service method, a voice mail is searched according to a transmission order using a keypad, and the user listens to the voice mail and performs an operation such as skipping, selecting, or deleting the user through the keypad operation. In other words, in the conventional method, the entire voice mail had to be listened to for complete search.

However, as described above, the conventional method of having to listen to the voice mail at the time of the content retrieval has a problem that the retrieval time for the complete retrieval is very large and the call charge is excessively generated.

In addition, the conventional method has a problem that the operation is cumbersome because the keypad must be used when retrieving the voice mail.

Disclosure of Invention The present invention has been made to solve the above-mentioned problems of the prior art, and is based on a voice command using a keyword. It is an object of the present invention to provide a voice mail retrieval method using mobile communication.

In order to achieve the above object, the present invention provides a remote terminal to the PCS terminal in a communication system including a plurality of PCS terminals, a voice recognition server connected to a base station relaying communication between each PCS terminal, and a remote terminal connected to the voice recognition server. A method for retrieving a voice mail, comprising: retrieving a search request message including recognition information of a remote target terminal targeted for voice mail retrieval, a voice mail retrieval keyword, and a password of the target terminal from the PCS terminal to the voice recognition server; Transmitting a first step; If the search request message is received, analyzing the received message and connecting the target terminal to the voice recognition server; A third step of receiving voice mail information stored in the target terminal when the received password extracted from the received message and the preset password of the target terminal are matched with each other, and storing the received voice mail information in a memory area of the voice recognition server; A fourth step of searching for a voice mail stored in the memory area by using the keyword extracted from the received message; A fifth step of transmitting a search result notification message corresponding to the search result in the fourth step when there is no voice mail to find and disconnecting from the PCS terminal; And a sixth step of transmitting the retrieved voice mail information to the PCS terminal and releasing the connection in response to a user request message when the search result in the fourth step is found. Provide a search method.

1 is a schematic diagram of a wireless communication system suitable for retrieving voicemail using personal mobile communications in accordance with the present invention;

2 is a flowchart illustrating a voice mail retrieval process using personal portable communication according to a preferred embodiment of the present invention;

3 is a flowchart illustrating a detailed processing of the error message transmitting step shown in FIG. 2;

FIG. 4 is a flowchart showing the detailed processing of the voice mail transmission step shown in FIG.

* Explanation of symbols for main parts of the drawings

102: mobile terminal 104: base station transmission and reception block

106: speech recognition server 108: server

110: memory block

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings by those skilled in the art.

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

1 is a schematic diagram of a wireless communication system suitable for retrieving voice mail using personal mobile communications in accordance with the present invention, including a mobile terminal 102, a base station transmission / reception block 104, a voice recognition server 106, a server 108 ) And memory block 110.

Referring to FIG. 1, the portable terminal 102 is a PCS terminal that provides a pedestrian-oriented multimedia mobile communication service. A user uses the portable terminal 102 to target a target terminal, for example, a home or a company. Executes a search and transmission request for voice mail received (or received) and stored in a personal computer, a mail server, or the like, i.e., various messages (e.g., search) communicated with each other (i.e., between a mobile terminal and a voice recognition server). Various types of voice mail services can be provided based on the request message, the transfer request message, and the like.

On the other hand, in the base station transmission and reception block 104, when a message or voice data is received from a remote user portable terminal (PCS terminal), various messages related to the service of voice mail are extracted from the received signal, and the voice mail service thus extracted. Provide relevant messages to the speech recognition server 106.

In addition, the base station transmission / reception block 104 modulates various messages provided from the voice recognition server 106 when performing a voice mail service, for example, a password error message, a password retransmission request message, a warning message, and the like to perform a voice mail service. The request is sent to the requested portable terminal 102.

On the other hand, the voice recognition server 106 analyzes when various messages related to the voice mail service are received from the base station transmission / reception block 104 and performs the corresponding voice mail service control, and the mobile terminal is in progress during the voice mail service. When a user's response (or approval) is required, a corresponding message is generated, and the server 108 is connected to a remote server 108, for example, a personal computer, a mail server, etc. to start a voice mail service. Read saved voicemail.

In addition, the voice recognition server 106 receives the voice mail information received from the remote server 108 and sequentially stores the voice mail information in the memory block 110 which is a database and searches for the stored voice mail based on a keyword extracted from the received message. When there is a request for transmission of the voice mail retrieved from the mobile terminal 102, the retrieved voice mail information is retrieved from the memory block 110 and provided to the base station transmission / reception block 104. Here, the remote server 108 may be, for example, a personal computer of a home or a company, a mail server.

Accordingly, when the base station transmit / receive block 104 provides voice mail data from the voice recognition server 106, the base station transmit / receive block 104 modulates the voice mail data into a wireless transmittable signal and transmits the voice mail data to the remote terminal 102.

Next, a process of searching for a voice mail of a remote server and performing a transmission service of the retrieved voice mail according to the present invention using the wireless communication system having the above-described configuration will be described.

2 is a flowchart illustrating a voice mail retrieval process using personal portable communication according to a preferred embodiment of the present invention.

Referring to FIG. 2, when a request message requesting a voice mail search is transmitted from the portable terminal 102 of FIG. 1 and received by the base station transmission / reception block 104 (step 202), the base station transmission / reception block 104 receives the received voice. The mail search request message is demodulated and transmitted to the speech recognition server 106 (step 204).

Next, the speech recognition server 106 analyzes the transmitted search request message, that is, the search request message includes target terminal information (eg, a personal computer, a mail server, etc.) targeted for the search, a password, a keyword for the search. In step 206, each of these pieces of information is separated and analyzed.

Then, the voice recognition server 106 connects the target terminal 108 requested by the user according to the analyzed target terminal information (step 208) and determines whether the received password matches the preset password of the target terminal. It is checked whether or not (step 210).

As a result of the check in the step 210, if it is determined that the received password and the predetermined password of the target terminal do not match each other, the process proceeds to step 212, the signal processing such as transmission of an error message due to incorrect password The operation of the process is described in detail with reference to FIG. 3, which shows a detailed process of the operation in this step 212.

FIG. 3 is a flowchart illustrating a detailed processing of the error message transmitting step shown in FIG. 2.

Referring to FIG. 3, when the received password and the preset password of the target terminal are different, the voice recognition server 106 transmits an error message, for example, to the mobile terminal 102 at the remote location through the base station transmission / reception block 104. It is impossible to access the target terminal because the password is incorrect. Please re-send the password. ”And the like, and wait for the reception of the new password (step 302).

Next, in step 304, it is checked whether a new password has been received, and as a result of the check, there is no input (i.e., reception) of a new password within a predetermined time period (for example, 5 seconds, 8 seconds, etc.). If judged, the process proceeds to step 306 to increase the count value n, which indicates the number of times the input password is received, by one.

On the other hand, in step 308, it is checked whether the increased count value n has reached the preset count value m. Here, the preset count value can be set three times, for example, three times. If the password is incorrect due to a user's mistake or the like, it means that the user is given three chances to re-enter (or resend) the new password.

Therefore, if it is determined in the step 308 that the current count value n has not reached the preset count value m, the process returns to step 302 described above to repeat the subsequent steps. do.

In addition, if the check result in the step 308 determines that the current count value n has reached the preset count value m, that is, it is determined that there is no input of a new password for a predetermined number of repetitions, a warning message accordingly For example, a message such as "No new password is entered to block access to the target terminal" is transmitted to the remote mobile terminal 102 (step 314), and then a message is sent to the target terminal (i.e., the server 108). The connection is released (step 316).

On the other hand, if the new password is input within the predetermined time period as a result of the check in the above-described step 304, the count value n indicating the number of reception of the input password is increased by one (step 310), and then the increased count value n is increased. It is checked whether or not the preset count value m has been reached (step 312).

If it is determined in step 312 that the increased current count value n has not reached the preset count value m, then the process returns to step 210 of FIG. 2 to repeat the subsequent process. do.

In addition, if it is determined in step 312 that the increased current count value n has reached the preset count value m, the process returns to step 314 described above and transmits a warning message and at the same time the target terminal. Disconnect from.

Referring back to FIG. 2, if it is determined that the received password and the preset password of the target terminal match each other, the voice recognition server 106 receives the target terminal, that is, the server 108. After receiving the stored voice mail (that is, file information), the memory block 110 stores the received voice mail in sequence (step 214).

Next, in step 216, when the voice mail storage to the memory block 110 is completed, the voice mail stored in the memory block 110 is searched using the keyword extracted from the voice mail search request message. Unlike the conventional method, since a voice mail is searched using a keyword, a faster and faster search can be realized.

On the other hand, it is checked whether or not there is a voice mail searched based on the search result and keyword in step 216 (step 218). If it is determined that there is no message, a corresponding message, for example, "no voice mail to find" is generated and transmitted to the mobile terminal 102 (step 220), and then the connection with the mobile terminal is released. (Step 226). At this time, the voice mails stored in the memory block 110 will be deleted at the same time as the connection is released.

On the other hand, if the check in the step 218 determines that the searched voice mail, that is, the voice mail that the user wants to find, exists, the process proceeds to step 222 where a signal such as the transmission of the voice mail corresponding to the search result is performed. The process is performed, and the detailed operation process in this step 222 will be described in detail with reference to FIG. 4, which shows the detailed process.

FIG. 4 is a flowchart showing the detailed processing of the voice mail transmission step shown in FIG.

Referring to FIG. 4, when there is a voice mail searched using a keyword, the search result information is notified to the mobile terminal, for example, "There are two searched voice mails. Send a voice message to the mobile terminal 102, and wait for a response (transmission request) accordingly (step 402).

Next, in step 404, it is checked whether a response message has been received, and there is no input (i.e., reception) of a transmission request message within a predetermined time period (e.g., 5 seconds, 8 seconds, etc.) as a result of the check. If it is determined that the process proceeds to step 406, the count value n representing the number of receptions of the transmission request message is increased by one.

On the other hand, in step 406, it is checked whether the increased count value n has reached the preset count value m. Here, the preset count value can be set 3 times, for example, 3 times. This means that the transmission opportunity of the transmission request message is given three times.

Therefore, if it is determined in the step 406 that the current count value n has not reached the preset count value m, the process returns to step 402 described above to repeat the subsequent steps. do.

Further, if it is determined in the step 406 that the current count value n has reached the preset count value m, i.e., there is no input of the transfer request message for a predetermined number of repetitions, the process is performed. Proceeding to 408, the connection with the mobile terminal 102 is forcibly released.

On the other hand, if the transmission request message is received within a predetermined time period as a result of the check in the above-described step 404, the searched voice mail is transmitted to the mobile terminal 102 (410), and then the process proceeds to the step (FIG. 2). 224).

That is, referring to FIG. 2, in step 224, it is checked whether the connection between the portable terminal 102 and the voice recognition server 106 is terminated and when the connection termination message is received from the portable terminal 102, the portable terminal 102 is checked. The connection between the 102 and the speech recognition server 106 is terminated (226).

As described above, according to the present invention, a voice mail in a target remote server can be searched at high speed using a PCS based on a voice message including a keyword, and the voice mail retrieved without a keypad can be automatically provided to the PCS. Therefore, the voice mail service using PCS can be significantly improved.

Claims (3)

In a communication system comprising a plurality of PCS terminals, a voice recognition server connected to a base station for relaying communication between each PCS terminal and a remote terminal connected to the voice recognition server, a method for retrieving the voice mail of the remote terminal to the PCS terminal, A first step of transmitting from the PCS terminal to the voice recognition server a search request message including recognition information of a remote target terminal targeted for voice mail search, a keyword for voice mail search, and a password of the target terminal; If the search request message is received, analyzing the received message and connecting the target terminal to the voice recognition server; A third step of receiving voice mail information stored in the target terminal when the received password extracted from the received message and the preset password of the target terminal are matched with each other, and storing the received voice mail information in a memory area of the voice recognition server; A fourth step of searching for a voice mail stored in the memory area by using the keyword extracted from the received message; A fifth step of transmitting a search result notification message corresponding to the search result in the fourth step when there is no voice mail to find and disconnecting from the PCS terminal; And In the fourth step, when the voice mail to be searched for exists, the voice mail search using the personal mobile communication comprising the sixth step of transmitting the retrieved voice mail information to the PCS terminal in response to a user request message and releasing the connection. Way. The method of claim 1, wherein the voice mail retrieval method further comprises the step of requesting retransmission of a new password when the received password and the predetermined password do not match, and the third step when the new password is retransmitted. The voice mail retrieval method using the portable communication, characterized in that the step to perform the sixth step. The method of claim 1, wherein the sixth step is: Transmitting the search result information message to the PCS terminal and waiting for reception of a corresponding transmission request response message; A 62nd step of releasing a connection between the voice recognition server and the PCS terminal when there is no input of the transmission request response message from the PCS terminal for a predetermined time; And And a 63-th step of transmitting the retrieved voice mail information to the PCS terminal and releasing the connection when the transmission request response message is received from the PCS terminal.