KR20100096435A - Method and terminal for filtering spam messages - Google Patents

Abstract

PURPOSE: A method for filtering a spam message for storing additional development cost in a spam filtering process is provided to efficiently use limited memory resources of the terminal. CONSTITUTION: A user inputs a spam character string through the fixed the wild card of the terminal. An inputted spam string is registered in the terminal(602). The wild card is included in the spam character string. The terminal receives a message the message of originator(604). The terminal compares the character string and registered spam character string within the incoming message(606). If the incoming message is the spam message, the terminal stores the incoming message in the spam message box(608).

Description

How to filter and message spam messages {METHOD AND TERMINAL FOR FILTERING SPAM MESSAGES}

The present invention relates to a method and a terminal for filtering a spam message.

With the development of mobile communication technology and the rapid spread of mobile communication terminals, various services using mobile communication terminals have been developed and provided. One such service is a text messaging service. The text message service refers to a service that allows a user to send and receive a short sentence message through a mobile communication terminal. The text message service can be easily used by anyone because the contents can be delivered at the same time as the time of dispatch without additional equipment and the information is provided interactively for the convenience of the user.

The text communication or text message service of the mobile communication terminal starts with a short messaging service (SMS) that can simply transmit text, and transmits and receives simple media such as ringtones, images, animations, start / end screens, and logos. It has evolved into EMS (Enhanced Messaging Service), which is a service that allows users to do so. Recently, it has evolved into a multimedia messaging service (MMS) that can transmit sound, pictures, video, etc. along with text.

These message services are in the spotlight because of their superior convenience and speed compared to other communication means, but the spam messages that are sent indiscriminately to a large number of unspecified people are causing a great social problem. Therefore, nowadays, a mobile communication terminal includes a function of separately managing or blocking such a spam message so that a user can set and use a spam message blocking function.

As a method of blocking spam messages in a terminal, a method of registering a phone number of a spam message sender and a method of registering a specific string (spam string) are mainly used. Among these, a method of registering a spam string is to classify and classify a message containing a string that is not desired to receive, such as "casino" or "loan counseling", as a spam message. Recently, in response to the spam string registration function, a spam message that attempts to circumvent the spam message blocking function by inserting meaningless characters between the characters such as "Kashiji ♠ no" and "Category #Conversation #Conversation" has been introduced. It is appearing. It is difficult to block these variants of spam messages by the existing spam string registration function, and terminal users receive unwanted spam messages again.

Accordingly, an object of the present invention is to provide a spam message filtering method and a terminal which can block various kinds of spam messages by simple setting, and can more efficiently use the limited memory resources of the terminal.

In addition, the present invention provides a spam message filtering method and a terminal that can provide a higher quality of service to the subscribers by reducing the additional development costs by adding a simple configuration to the existing spam filtering process from the mobile service provider's point of view. For other purposes.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention, which are not mentioned above, can be understood by the following description, and more clearly by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

In accordance with another aspect of the present invention, there is provided a method for filtering a spam message, the method including: registering a spam string including a wild card, receiving a message transmitted from a sender, and using the received spam message and the registered spam string. And comparing the received message with the spam message.

In another aspect, the present invention provides a terminal for filtering a spam message, the spam string register for registering a spam string containing a wild card, a message receiver for receiving a message sent from the sender, and a string and registered spam string included in the received message In another aspect, the method further includes a spam message filtering unit configured to determine whether the received message is a spam message.

According to the present invention as described above, it is possible to block a variety of spam messages with a simple setting, there is an advantage that can use the limited memory resources of the terminal more efficiently.

In addition, the present invention has the advantage of saving additional development costs and providing a higher quality of service to the subscribers by adding a simple configuration to the existing spam filtering process from the mobile service provider's point of view.

The above objects, features, and advantages will be described in detail with reference to the accompanying drawings, whereby those skilled in the art to which the present invention pertains may easily implement the technical idea of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

In the present invention, the mobile communication terminal includes a terminal that enables wireless communication while being carried by an individual, such as a personal mobile communication terminal (PCS), a personal digital terminal (PDA), a smartphone, and a next generation mobile communication terminal (IMT-2000). In the present invention, 'message' is a term meaning including a message used in a short message service (SMS), an enhanced messaging service (EMS), a multimedia messaging service (MMS), and the like. Hereinafter, the present invention will be described with reference to SMS as an example, but the method and apparatus according to the present invention can be applied to other message types.

The present invention filters spam messages by registering a spam string containing wild card characters and comparing the registered spam string with a string included in a message sent from the sender to determine whether the received message is a spam message. It relates to a method and a terminal.

Character encoding is a method of encoding a set of characters for use in a computer or communication field. These character encodings or character sets thus vary from the early ASCII, EBCDIC, and KSC5601 to the currently used UTF-8, UCS-2, and GSM 7-bit. However, the amount of data occupied by one character is different depending on the character encoding method. For example, the English letter 'A' in ASCII occupies one byte of data, and the Korean alphabet "ah" in KSC5601 occupies two bytes of data. Similarly, UCS-2 uses 2 bytes per character, UTF-8 uses 1 to 4 bytes, and GSM-7bit uses 7 bits, depending on the type of character.

The present invention provides a method and apparatus that can effectively block spam messages by corresponding to one letter per wildcard character, regardless of the character encoding scheme adopted by the terminal.

In a preferred embodiment of the present invention, one wildcard (= 1byte) included in the spam string corresponds to one-byte characters including English, numbers, and symbols, and two-byte characters including Korean, Chinese, and pictograms. You can block spam messages more effectively.

For example, when the wildcard used to block spam messages is designated as '?' In the terminal, the user may register "carcassino" as a spam string. Then, the message received afterwards is a character string containing one byte of characters such as "car / ji / no" and "carpage three no", or "cardinal no" or "card payment no". Any message that contains a string containing bytes of characters is classified as spam.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

1 is a block diagram illustrating a configuration of a terminal for filtering a spam message according to a preferred embodiment of the present invention.

As shown in FIG. 1, the terminal 102 according to an embodiment of the present invention includes a spam string register 104, a message receiver 106, and a spam message filter 108. First, the spam string register 104 serves to register a spam string including a wild card. In a preferred embodiment of the present invention, the user of the terminal 102 can enter a spam string including a wild card in the spam string registration menu, the spam string register 104 registers and stores the spam string entered by the user It is then used to determine whether the received message is a spam message. And the message receiving unit 106 serves to receive a message sent from the sender.

The spam message filtering unit 108 determines whether the received message is a spam message by comparing the string included in the message received through the message receiving unit 106 with the spam string registered by the spam string registration unit. For example, if a user registers "lowest" as a spam string using the wildcard "?" And receives a message like "lowest price is an internet auction", The message will be classified as a spam message by the spam message filtering unit 108. The spam message filtering unit 108 also stores the received message determined as the spam message in the spam message box.

Figure 2 shows a spam string registration screen in the terminal according to an embodiment of the present invention.

As shown in FIG. 2, the terminal user directly inputs an unwanted string (gambling) as a spam string through the spam phrase registration menu (202). At the bottom of the spam phrase registration menu, a message indicating that a message including a registered string is spammed is inserted, and that '*' can be used as a wild card (204).

Figure 3 shows a spam string list screen in the terminal according to an embodiment of the present invention.

When the spam string is registered through the spam phrase registration menu as shown in FIG. 2, the spam phrase list screen as shown in FIG. 3 appears (302). This shows all strings registered as strings that the user does not want to receive (sea * ya * ya *, gambling, sexy *). If additional character strings are to be registered additionally, an additional menu 304 may be selected, an edit menu 306 may be selected if an existing character string is to be modified, or a deletion menu 308 may be selected if an existing character string is to be deleted.

4 shows a spam message output screen stored in a spam message box according to an embodiment of the present invention.

The spam message box of FIG. 4 stores received messages classified as spam messages, including a spam string registered by the user. The user can directly check the received spam message, just like entering a spam box and checking a normal message (402). In addition, at the bottom of the screen, the phone number of the sender of the spam message and the received date, time, etc. are displayed (404).

In FIG. 3, a user registers 'sea * ya * ya * gi' as a spam string, and the received message of FIG. 4 includes a string “sea #ya #ya #gi”. Therefore, this received message is classified as a spam message. Although not shown in FIGS. 2 to 4, '*' used as a wild card may correspond to not only one-byte characters such as '#' but also two-byte characters such as 'ㅁ'. In other words, if a message is received that contains a string such as 'Where is it?' It can also be classified as a spam message.

5 is a flowchart illustrating a spam message filtering process according to another embodiment of the present invention.

First, a message sent from the sender is received (502). Since the user may set whether to use the spam message blocking function through the terminal, after receiving the message, it is first checked whether the spam message blocking function is set (504). If it is determined in step 504 that the spam message blocking function is not set, the received message is stored as it is in the general message storage box (506). If it is determined in step 504 that the spam message blocking function is set, a step of checking whether the received message is a spam message is performed.

In order to check whether the message is spam, it is checked whether the sender's telephone number of the received message matches the spam setting number set by the user (508). As a result, if there is a match, the received message is stored in the spam message archive (510), and if not, it is checked whether the received message includes the spam setting word or string (512).

In step 512, if the received message includes a spam string set by the user, the received message is stored in the spam message archive (510). If the spam string is not included, it is checked whether the received message includes a spam word or a string including a wild card (514). If the verification result includes a spam string including a wildcard, the received message is stored in the spam message archive, otherwise it is stored in the general message archive (506).

The spam message filtering process shown in FIG. 5 is one example to which the present invention is applied, and steps 508 to 512 may be reversed. That is, before determining whether the spam setting number matches 508, it may be first determined whether the spam setting string including the wild card is included 514.

6 is a flowchart illustrating a flow of a spam message filtering method according to a preferred embodiment of the present invention.

First, a spam string including a wild card is registered (602). The user inputs a spam string using a wild card set in the terminal, and the input spam string is registered in the terminal and then used to filter spam messages.

It then receives the message sent from the sender (604). In order to determine whether the received message is a spam message, the string included in the received message is compared with the registered spam string (606). If it is determined that the received message is a spam message, the received message is stored in the spam message box (608).

According to the present invention described so far, it is possible to block various kinds of spam messages by simple setting, and there is an advantage of using the limited memory resources of the terminal more efficiently.

In addition, by adding a simple configuration to the existing spam filtering process from the mobile service provider's point of view, it is possible to save additional development costs and provide higher quality services to service subscribers.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by.

1 is a configuration diagram for explaining the configuration of a terminal for filtering a spam message according to an embodiment of the present invention.

2 is a spam string registration screen in a terminal according to an embodiment of the present invention.

Figure 3 is a spam string list screen in the terminal according to an embodiment of the present invention.

Figure 4 is a spam message output screen stored in the spam message box according to an embodiment of the present invention.

5 is a flowchart illustrating a spam message filtering process according to another embodiment of the present invention.

6 is a flow chart illustrating the flow of a spam message filtering method according to a preferred embodiment of the present invention.

Claims (6)

Registering a spam string including a wild card; Receiving a message sent from the sender; And Comparing the registered spam string with a string included in the received message and determining whether the received message is a spam message; Spam message filtering method comprising a. The method of claim 1, The wild card is Regardless of the character encoding method of the terminal, a spam message filtering method corresponding to one character expressed in the terminal. The method according to claim 1 or 2, Storing the received message in a spam message box when it is determined that the received message is a spam message. Spam message filtering method comprising more. A spam string register for registering a spam string including a wild card; Message receiving unit for receiving a message sent from the sender; And A spam message filtering unit which compares the string included in the received message with the registered spam string and determines whether the received message is a spam message; Terminal for filtering spam messages comprising a. The method of claim 4, wherein The wild card is Regardless of the character encoding method of the terminal, a terminal for filtering a spam message corresponding to one character expressed in the terminal. The method according to claim 4 or 5, The spam message filtering unit And a terminal for filtering a spam message for storing the received message in a spam message box when it is determined that the received message is a spam message.

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