Method and system of transmitting/receiving service information and receiving apparatus

Abstract

A system provides service information through a restricted broadcasting using an FM teletext multiplex broadcasting. When providing a reception authorization code that enables each receiver terminal to receive the service information, terminal unique information such as a production number is stored in a user file at the provider's end, such as an FM broadcast station. Further, a processing circuit encodes reception authorization information showing an expiration date of a reception authorization period or contract contents after appending an error detection sign using the terminal unique information, which is notified to the user via mail of the like. Upon input of the notified reception authorization code through an input device, a processing circuit at the receiver terminal's end decodes the reception authorization code using the terminal unique information stored in its memory and corrects an error. Then the processing circuit makes the restricted broadcasting available only when the decoded reception authorization information shows reception authorization and no error is detected therein, so that the decoded teletext information is displayed on a display service.