| 摘要 |
<p>The present invention provides transmitting additional information without superimposing the additional information on an airwave, in a universally applicable way. A communication terminal (Sa1) transmits user information via a communication network. The communication terminal receives (Sa2) additional information in response to the user information. Then, the communication terminal initiates (Sa3) receiving of an airwave. In other words, the communication terminal receives the additional information via a communication path other than the airwave. The additional information includes data showing an additional image superimposed on images carried by the airwave (main images). The communication terminal displays (Sa4) combined images, which are generated by combining the main images and the additional image, based on the airwave and the additional information. If a user identifies a position on a first display area (Sa5: YES), the communication terminal displays images corresponding to the identified position, as a process corresponding to the identified position.</p> |
