KR20020010290A - Voice mail system used in web and sending-receiving method of voice file - Google Patents

Abstract

PURPOSE: A voice mail system based on a web and a method for transmitting/receiving a voice file is provided to increase a transmitting speed of a voice file appended to a mail and to put a transmission/receipt of a voice file to practical use easily by transmitting a voice compressed by a wavelet signal compression and to remove an operation for downloading an additional plug-in program on a web browser easily by using a Java applet. CONSTITUTION: One client(1) who is a sender transmits a mail and a file appended thereof to a web mail server(2). A voice mail server(3) checks whether the appended file is a voice file and converts the file and stores in a database(4). The other client(1a) who is a recipient receives the mail and the appended file stored in the database(4) and outputs the mail and the file to a monitor and a speaker. The other client(1a) is connected to the web mail server(2) and the voice mail server(3). The other client(1a) may transmit a mail to the client(1) through the web mail server(2). The clients(1,1a) connect to a server computer in a dispersing computing method and request a data process to the server computer. The voice mail server(3) is connected between the web mail server(2) and the database(4) and connected to the clients(1,1a).

Description

VOICE MAIL SYSTEM USED IN WEB AND SENDING-RECEIVING METHOD OF VOICE FILE}

The present invention relates to a web-based voice mail system for transmitting and receiving mail through a web mail server and a method for transmitting and receiving voice files. More particularly, the present invention relates to a transmission of a voice file attached to a mail by transmitting and receiving a compressed voice. The present invention relates to a web-based voice mail system and a method for transmitting / receiving a voice file that can increase the speed and make the transmission and reception of a voice file easy.

In general, the Internet is a collection of networks that are interconnected with users on any other network and that can use the network services provided primarily by TCP / IP. Reading, downloading of retrieved material, e-mail, etc. are made easy, for example, a web browser makes it easy and fast to send and receive e-mails and their attachments.

That is, conventionally, in order to send mail and its attachments, the sender connects to the Internet through a telephone line or a dedicated line, accesses a web-based mail service, receives a webmail page, composes a mail, and then attaches the file. When there is an attachment, the file is processed and sent to the webmail server. The mail and attachments sent to the server are stored in the database.

Also, in order to receive the mail and its attachments, the recipient first accesses the Internet and then accesses a web-based mail service, receives a webmail page, checks whether there is a mail, and checks the mail and attachments stored in the database. Received, and the sent mail and its attachments are output to the screen and voice through the monitor and speakers to check.

As described above, due to the development of the Internet, not only the e-mail and its attachments can be easily sent to recipients in other regions regardless of time and region, but also the sender can easily receive an e-mail or an attachment thereof. .

However, in the past, since attachment files are stored in a database without compression, when sending an e-mail to a recipient by attaching a video file and a voice file, which take up a large amount of mail, it takes a lot of time to send. There is a problem that it takes a lot of time to receive from the webmail server.

In addition, in order to check a voice file on a web browser, a separate plug-in software can be downloaded from a server and installed on a computer so that the voice file can be checked. There is another problem.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to increase the transmission speed of the voice file attached to the mail by transmitting the compressed voice by wavelet signal compression and to send and receive voice files The present invention provides a web-based voice mail system and a method of transmitting / receiving voice files that can be easily put to practical use and can easily remove a task of downloading a separate plug-in program from a web browser by using a Java applet.

Therefore, in order to achieve the above object, the present invention provides a web mail server having a database connected to a plurality of clients, and a web in which mail inputted from one client and its attached files are transmitted to another client through a web mail server. In the based mail system, a voice mail server connected between the web mail server and a database is connected with the client, and the voice mail server signals the voice file attached to the mail transmitted from the sender's client to the wavelet. Web-based encoding consisting of encoding via a Java applet, compressing, storing the compressed voice file in the database, decoding the voice file stored in the voice database into a Java applet, and sending the message together with the mail to the recipient's client. Voicemail Provide system.

The present invention also provides a voice mail server connected between the web mail server and the database, respectively, wherein the voice mail server is connected to the client, wherein the voice file is transmitted to the mail transmitted from the sender's client. When the attached file is a voice file, it checks whether the attached file is a voice file, analyzes the components of the voice signal with a wavelet, encodes it through Java applets, compresses the encoded voice, and compresses the compressed voice file. Is converted into a mime type, the voice file converted into mime type is converted into an application program interface structure, and is configured as an attached file and stored in a database. When a voice file stored in the database is output to a receiver's client, the stored voice file is stored. Decompose the mime structure A web-based voice mail system consisting of verifying the audio file, decoding it through a Java applet, converting it to an ordinary audio format, and transmitting the decoder of the audio file converted to the audio format to output to the receiver's client. Provides a method of transmitting and receiving a voice file.

1 is a block diagram of a web-based voice mail system according to the present invention;

2 is a flowchart illustrating a method of transmitting a voice file using a web-based voice mail system according to the present invention;

3 is a flow chart from A to B of FIG.

4 is a flowchart illustrating a method of receiving a voice file using a web-based voice mail system according to the present invention;

5 is a flow chart from C to D in FIG.

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

1,1a: client

2: webmail server

3: Voice mail server

4: database

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

1 is a block diagram illustrating a web-based voice mail system according to the present invention. The web-based voice mail system according to the present embodiment includes a mail and a single client. Send the attached file to the web mail server (2), check whether the attached file attached to the mail is a voice file in the voice mail server (3), and convert the database (database). (4), another web client (1a) receiving the mail stored in the database (4) and the attached file attached thereto and outputting the same to the monitor and the speaker is the webmail server (2) and the voicemail server ( It consists of a structure connected to each 3).

Of course, the client 1a may also transmit mail and the like to the client 1 through the web mail server 2, but the present embodiment shows that the mail is transmitted and received in one direction for convenience.

Here, the clients (1, 1a) is a computer that connects to the server-side computer in a distributed computer system and requests data processing from the server-side computer, and is divided into a client 1 of the sender and a client 1a of the receiver in this embodiment. .

The webmail server 2 is capable of supplying data or transmitting data to a client by a web browser such as a navigator and an explorer.

The voicemail server 3 is connected between the webmail server 2 and the database 4 and connected to the clients 1 and 1a, respectively, and is attached to the mail transmitted from the sender's client 1. The audio file is signal-processed by a wavelet and encoded through a Java applet, and then compressed. The compressed voice file is stored in the database 4, and the compressed voice file is stored in the voice database. After decoding the Java applet, it is sent to the receiver 1a of the receiver together with the mail.

A method of transmitting / receiving voicemail using a web-based voicemail system made in this way will be described in detail as follows.

In the present invention, the mail sent from the sender's client 1 and the file attached thereto are received by the webmail server 2 and stored in the database 4 via the voice mail server 3, and the receiver's client 1a. Is to receive the mail stored in the database (4) and the file attached thereto from the webmail server (2).

In other words, when the sender's client 1 sends a mail and a file attached thereto, as shown in FIGS. 2 and 3, the sender connects to the webmail server 2 to receive a webmail page and receives a mail. Create a mail to send to the recipient.

If the attachment is not included, the mail is stored in the database 4 as is, but if the attachment is included, the voice mail server 3 checks whether the attachment is a voice file, and the attachment is If it is not an audio file, it is composed of an attached file and stored in the database 4 as in the prior art.

In addition, when the attached file is a voice file, the component of the voice signal is analyzed by a wavelet, and then encoded through a Java applet, the encoded voice is compressed, and the compressed voice file is a compressed file (MIME). Type), the voice file converted to mime type is converted into an application program interface (API) structure, and is composed of attachments and stored in a database.

That is, high-quality and high-compression can be achieved by processing a signal with a wavelet to exchange voice signals. The wavelet is a set of orthonormal functions that decompose frequency components according to time changes by simultaneously converting a time-frequency domain. As it is used for seismic data processing, image compression, etc., it analyzes minute frequency components of a signal and can be used for high compression of 20: 1 to 100: 1 or more.

In order to encode and decode the voice, encoding and decoding are implemented through Java applets, which enables the voice to be output from the client without having to download a separate program.

The application program interface is a set of computer functions, in particular, program functions pre-fabricated for a specific type of computer system to facilitate the writing of a program. Will be produced.

Thus, in the present invention, in order for the Java applet to decode and reproduce the voice compression on the user's computer, the webmail server can send data to the applet and communicate with a servlet to process the data sent by the applet. The application program interface (API) enables communication between applets and servlets, because it must have a mechanism.

The mime type encodes a character in QP (quoted printable), and encodes a binary file in BASE64.

Meanwhile, in the present invention, when the compressed voice file is stored in the database 4 as described above, when the receiver wants to listen to the voice file, as shown in FIGS. 4 and 5, the receiver has the webmail server 2. You will be sent to the webmail page, and will download the mail.

Then, the web mail server 2 checks the mail stored in the database 4 and the attached mail attached thereto through the voice mail server 3, in which case if the attachment is not included, the client of the receiver is as it is. If only the mail is sent to (1a), and the attachment is included in the database 4, the voice mail server 3 checks whether the attachment is a voice file, and if the attachment is not a voice file, Similarly, the attachment is sent to the client 1a.

However, if the attached file stored in the database 4 is a voice file, the mime structure of the stored voice file is decomposed to check whether the voice file is a voice file, and when the voice file is a voice file, it is decoded through a Java applet and then converted to a normal audio format. Then, the decoder transmits the audio file to the audio format through the decoder and the speaker of the receiver client 1a.

As described above, the web-based voice mail system and the method for transmitting / receiving the voice file according to the present invention can be quickly received and listened to the voice file attached to the mail without a separate plug-in program.

As described above, the web-based voice mail system and the method for transmitting / receiving voice files according to the present invention employ a codec technology for voice compression using wavelets, thereby enabling high compression and high quality voice mail, thereby increasing transmission speed. In addition, the use of Java applets that can communicate with servlets has the advantage of improving server and client compatibility.

In addition, the database and the web interoperate with each other, providing a safe and reliable service to the user.

Moreover, since there is no need to download and install separate plug-in software from the server, it uses Java applet linked with web-based voice mail system. Therefore, it eliminates the task of downloading or installing plug-in program, which facilitates user inconvenience. There is another advantage of being able to remove it.

Claims (2)

In a web-based mail system in which a webmail server having a database is connected to a plurality of clients, and mail inputted from one client and its attachments are transmitted to another client through a webmail server, A voice mail server connected between the webmail server and a database is connected with the client, The voice mail server processes the voice file attached to the mail transmitted from the sender's client with a wavelet, encodes it through a Java applet, compresses it, stores the compressed voice file in the database, and stores the voice file in the voice database. A web-based voice mail system consisting of decoding a file into a Java applet and sending it along with the mail to the recipient's client. In the web-based voice mail system comprising a voice mail server connected between the web mail server and the database is connected to the client, respectively, When attaching a voice file to an e-mail transmitted from a sender's client, confirm whether the attached file is a voice file, and when the attached file is a voice file, analyze the components of the voice signal with a wavelet, and then communicate with the servlet. Encodes through Java applets, compresses the encoded voice, converts the compressed voice file into a mime type, converts the voice file converted into mime type into an application program interface structure, and converts the voice file into an attached file. Configured and stored in the database, When outputting the voice file stored in the database to the receiver's client, the mime structure of the stored voice file is decomposed to check whether the voice file is a voice file, and when the voice file is decoded through a Java applet, the audio file is converted into a normal audio format. A method of transmitting and receiving a voice file using a web-based voice mail system, comprising: transmitting a decoder of a voice file converted to an audio format and outputting the same to a receiver client.