Control apparatus, mobile communications system, and communications terminal

Abstract

The invention relates to a control device, a mobile communication system and a communication terminal. The invention provides a control device. the control device comprises: a receiving unit which receives a notification instructing the detection of an outside third party from one of a first communication terminal and a second communication terminal, wherein, each communication terminal all can send and receive images and messages and can display the messages and the images, and the outside third party is not a correspondent of any one of the communication terminals; and a control unit, wherein, when the receiving unit doesn't receive the notification from the first communication terminal, the control unit leads the first communication terminal to display a picturing image sent by the second communication terminal, and when the receiving unit receives the notification from the first communication terminal, the control unit leads the first communication terminal to display a substituted image instead of the picturing image.

Description

Control device, mobile communication system and communication terminal technical field The present invention relates to a technology of communicating between users by transmitting / receiving text or voice messages along with images. Background technique In a portable phone, as its function has been enhanced in recent years, not only voice communication can be performed. For example, a portable phone having a so-called video phone function in which an image of a speaker's face or the like captured by an attached camera is transmitted / received together with voice has become quite common. In addition, there are known portable telephones that display images of predetermined characters and the like during a voice telephone call (for example, see JP 2004-537231A and JP 2004-297350A). Incidentally, when communication is performed using the videophone function, there is a possibility that not only the face of the telephone correspondent is known to the other party of the telephon...

AI Technical Summary

Problems solved by technology

Therefore, there is a risk that privacy cannot be sufficiently protected only by conventional video telephony functions

On the other hand, as in JP2004-537231A and JP 2004-297350A, since the intimacy between speakers cannot be enhanced only by continuously displaying images such as characters during a telephone conversation, it is feared that communication cannot be particularly facilitated

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