KR20060087099A - Reduction method of transmission load when transmitting caller identification image to receiving terminal by separate channel - Google Patents

Abstract

The present invention relates to a method for displaying a caller identification image on a terminal by transmitting a caller identification image to a called terminal on a separate channel by a caller identification video service server, the method for reducing a transmission load when sending a caller identification image to a called terminal. And a processing method in a service server to which the method is applied.

According to the present invention, in the prior art in which the caller identification image is displayed on the screen of the communication terminal by transmitting the caller identification image to the called terminal on a separate data channel by using the WAP gateway 5 at the time of the incoming call, every incoming call. It is not necessary to send a caller identification image having a large amount of data, thereby reducing the load on the related communication system.

Caller ID, Call Screen, Separate Channel

Description

Reduction Method of Transmission Load when Transmitting Caller Identification Image to Receiving Terminal by Separate Channel}

1 is a communication network to which the present invention is applied.

Figure 2 is a flow chart for storing the caller phone number and the caller identification image in the service server in the present invention.

3 is a flowchart illustrating a load reduction method when transmitting a caller identification video through a separate channel according to the present invention.

Figure 4 is a structural diagram of a confirmation DB whether to send a caller identification image.

The present invention relates to a method for displaying a caller identification image on a terminal by transmitting a caller identification image to a called terminal on a separate channel by a caller identification video service server, the method for reducing a transmission load when sending a caller identification image to a called terminal. And a processing method in a service server to which the method is applied.

In the prior art, in a mobile communication terminal such as a mobile phone or a PDA, a method of making a phone ring or vibrate when a call is received is used.

Therefore, since the called party must answer a call without knowing who the call came from, there is a inconvenience in that the called party must also receive a call from a person who does not want to answer the call.

In order to solve this problem, in recent years, the caller identification number is displayed on the screen of the called terminal when the call is received to allow the called party to confirm the caller through the phone number, thereby making it possible to selectively receive a call.

However, since the number of phone numbers that can recognize the called party through the phone number is only about 20 to 40 at the limit of the person's memory capacity, this method cannot identify the callers who do not talk frequently. Since the caller must be identified by a phone number, the identification power is also significantly reduced.

Thus, in the prior art, in order to improve the identification of the caller, the camera phone photographs the caller's video, stores the matched phone number with the recorded video, and then calls the caller's number on the incoming call when a call is received from any caller. Although a method of displaying a corresponding stored caller identification image on the screen of the camera phone is used, this method also allows only the image captured by the receiver, so that the number of caller identification images that can be displayed on the screen of the called terminal is limited.

In order to solve this problem, Korean Patent Application No. 10-2004-101504 stores the caller identification image in the service server in advance on the caller side, and detects the caller and the caller's telephone number when the caller calls the called party. A service control device, such as a home location register, transmits the caller and the called party's phone number to the service server, and determines whether the called terminal is the calling party identification service subscribed terminal through the called party's telephone number received by the service server. Transmits the stored identification image of the calling party to the called terminal through a separate channel using the WAP gateway, and displays the received calling party identification image on the screen. Is displayed on the screen and the called party facilitates the caller A method that can be easily identified was used.

However, in this method, even if the caller identification image is transmitted to the destination terminal through a separate data channel, the image data of which the data size is inevitably large every time a call is made (recently, the image data with the trend of high resolution / high color / large screen) Number is increasing rapidly) from the service server to the receiving terminal, which causes a significant load increase on the communication system for this separate channel. Despite the ringing, when the caller's identification image is not transmitted to the called terminal and the phone rings, the caller identification image may not be displayed on the screen of the called terminal.

In order to solve these problems, related communication systems can be added, but this cost is enormous.

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a method capable of reducing the transmission load of caller identification image data in a conventional technique of displaying a caller identification image on a separate data channel, and a processing method in a service server for the method. .

Now, with reference to the accompanying Figure 1 will be described in detail a preferred embodiment according to the present invention.

In order to transmit data between the calling terminal 1 and the called terminal 2, a mobile communication network 8 and an IWF (Interworking Function, 4), which are data transmission apparatuses, are required, and the caller identification image is transmitted through a separate channel. Further WAP gateway 5 is needed to transmit to 2).

The caller identification service server 6 is a server for providing information that can be used as an incoming call screen such as an image, a character, or a video. This function converts and uploads uploaded video, character or video.

In addition, the mobile communication network 8 is composed of a general mobile communication exchange (MSC), a base station and the like, and the home location register (HLR) 3 is a server having subscriber information and service information. Since these techniques are already well known or known in the art, the method will be described in detail below with reference to FIG. 2.

In advance, the service server 6 obtains information on the telephone numbers of the mobile terminals subscribed to the mobile communication service and whether or not there is a caller identification image storage function, etc. from the mobile communication company and stores them in the service server 6 (S1).

Now, the caller who wants to be provided with the caller identification image display service uses the Internet function of his PC 7 or the Internet function of the calling terminal 1 (hereinafter referred to as service server 6). ) And is given an ID and password (S2).

Next, at the time of joining or after entering the ID and password to pass the authentication process, the caller is the caller identification image (own photo, celebrity photo, collector, stored in his PC 7 or calling terminal 1) Video or the like) or by selecting a particular video as a caller identification video from the images presented by the service server 6 and inputting the caller's telephone number (S3), caller identification video information (video data or service stored on the caller's side). The selection result in the video presented by the server) and the caller's telephone number are transmitted to the service server 6 (S4).

The service server 6 which has received the caller telephone number and the caller identification video information stores the caller identification video corresponding to the caller identification video information with the received caller telephone number (S5).

Now, when the calling terminal 1 calls the called terminal 2, the service server 6 receiving the caller and the called telephone number detected by the service control device (e.g., the HLR 3) is separated. A method of reducing the transmission load when transmitting a caller identification image to the called terminal 2 using the data channel of FIG. 3 will be described with reference to FIG. 3.

The service server 6 determines whether or not the called terminal 2 has a function of matching and storing the caller identification image with the calling telephone number through the received called terminal number. Camera phones have this feature.

 If there is, the service server 6 determines whether the sender has previously sent the caller identification image to the called party through the caller identification image transmission confirmation DB (S12). This DB has the same format as in Fig. 4, and has the originating telephone number, a plurality of incoming telephone numbers that have been dialed from each of these originating numbers, and whether the caller identification image has been transmitted to each of these incoming telephone numbers? Comprising a flag indicating that, if the flag corresponding to the received terminal terminal number and the originating terminal telephone number is examined, it is possible to know whether the caller has transmitted the caller identification image to the called party by using the service server.

If not transmitted, the caller identification image corresponding to the caller's telephone number is transmitted to the destination terminal 2 in a separate channel (S13), and if not, the caller identification image is not transmitted (S14).

In the case of passing through step S13, the called terminal 2 matches and stores the caller identification number transmitted through the call channel and the caller identification image transmitted through the separate channel, and stores the stored caller in correspondence with the caller telephone number on the screen. The identification image is displayed (S15).

If step S14 is passed, the caller identification image corresponding to the caller's telephone number is stored according to step S15, so that the called terminal 2 stores the stored caller identification corresponding to the caller's number received through the calling channel. The image is read and displayed on the screen (S16).

If there is no function in step S11, the caller identification image corresponding to the caller's telephone number is transmitted to the called terminal 2 in a separate channel, and the called terminal 2 immediately displays the received caller identification image on the screen ( S17).

As described above, the service server 6 has a large data size to the called terminal 2 only when the called terminal which has stored the calling party number and the calling party identification image, such as a camera phone, has been transmitted before. Since the caller identification image may be transmitted, load of a communication system (service server, WAP gateway, IWF, etc.) for transmitting the caller identification image through a separate channel may be reduced. Considering that the portion of camera phones is increasing, the effect of reducing the load is expected to increase with the increase of camera phones.

On the other hand, when the calling party identification image and the calling party telephone number data stored in the called terminal 2 are completely deleted due to a failure of the called terminal, when the called party intentionally deletes them, the caller identification image stored the longest with the limited storage capacity is recently displayed. Is deleted for the received caller identification image of or when the called terminal 2 is replaced, the service server 6 does not know such deletion or replacement, so that the same caller subsequently calls the same called party. Even if a call is made, in order to store the caller identification video in the called terminal, the caller ID image must be transmitted from the service server 6 to the called terminal 2 once. Now, the measures for these cases will be described in detail.

First, in the case of a complete deletion due to a failure or when the called terminal 2 is replaced, when the called party selects the menu of the called terminal 2 or notifies the service server 6 through the PC 7, Check whether the calling terminal's telephone number exists in the DB ("O" indicates that the caller ID has not been sent; when "1" indicates that the caller ID has been sent) A caller identification video is set to be sent on an incoming call immediately after the caller to the called terminal 2.

In the case of the intentional deletion by the called party or in the case of deletion according to the limited storage capacity, the called terminal 2 automatically notifies the service server 6 as soon as this occurs, and checks whether or not the destination terminal telephone number in the transmission confirmation DB. Immediately from each caller to this called terminal 2 with all corresponding flags ("O" if no sender identification video has been sent and "1" if the caller identification video has been sent) as "0" Send caller identification video on incoming call.

In particular, when the called terminal 2 is replaced, the mobile communication company is notified of the replacement, and upon this notification, if all the flags corresponding to the called terminal's telephone number ("O") are transmitted, the caller identification image is transmitted. The caller identification video is set to be sent on the incoming call immediately after each caller from this caller to the called terminal 2, with " 0 ".

Of course, when the caller changes the stored caller identification image by accessing the service server 6, since the service server 6 knows the change, all the flags corresponding to this caller's telephone number in the transmission confirmation DB are " "O" means that no caller identification image has been transmitted, and "1" means that the caller identification image has been transmitted). All of them are set to "0" to immediately receive an incoming call from each caller to each called terminal 2; Set to send the caller identification video.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the art without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

For example, in the present invention described above, the caller identification image is transmitted only when it has never been transmitted. However, as described above, in this method, the service server 6 deletes the caller identification image and changes the destination terminal. This is cumbersome because you need to take action. Therefore, the method of transmitting only when the caller identification image has never been transmitted is applied only when the predetermined communication load is high or when the current communication load is high, and when the predetermined communication load is low or when the current communication load is low. In the case of an incoming call, it is possible to have the service server always transmit a caller identification image to the called terminal.

In addition, even when a predetermined communication load time is high or when there is a current communication load, and when the caller identification image is transmitted and the current caller identification image is not transmitted, necessary measures are taken when the deletion and the change are made. In order to prevent the service server from not knowing this fact, record the fact of the transmission in the service server and record it at the time when the predetermined communication load is low or when the current communication load is low. It is also possible to send a failed caller identification video.

In addition, in the above description, only the first time, the caller identification image is transmitted to the called terminal. However, in order to determine whether to send the first time, all the called telephone numbers that the calling terminal previously called should be stored in the service server. The amount of data in the database can be huge. To prevent this, the calling terminal can store only the called telephone number that the calling terminal has called within a predetermined period (eg, about a month), or set a limit (eg, 100) of the called telephone numbers stored. You can also use the method of deleting the oldest incoming call number whenever it occurs.

According to the present invention as described above, in the prior art of displaying the caller identification image on the screen of the communication terminal by transmitting the caller identification image to the destination terminal by a separate data channel using the WAP gateway (5) at the time of incoming Therefore, it is not necessary to send a caller identification image having a large amount of data at every incoming call, thereby reducing the load on the related communication system.

Claims (1)

When an arbitrary calling terminal makes a call to a called terminal having a calling party number display function, the calling number of the calling terminal received from the service control device which detects the telephone number of the calling terminal and the telephone number of the called terminal. In the caller identification image transmission method of the caller identification image service server for transmitting the stored stored caller identification image to the called terminal to display the caller identification image from the called terminal to the incoming screen, Determining whether the called terminal has a function of matching and storing a caller identification image with a caller's telephone number; Determining whether the calling terminal has previously sent a caller identification image to the called terminal if there is such a function; If not, transmitting the caller identification image to a called terminal through a separate channel, and storing the received caller identification number and the transmitted caller identification image by the called terminal, and displaying the caller identification image on a screen; If it has been transmitted, the caller of the caller identification image service server, characterized in that it does not transmit the caller identification image, and the caller terminal reads the stored caller identification image through the received caller phone number and displays it on the screen. Identification video transmission method.

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