Remote lecturing system

A remote lecturing system comprising:

• first storage means for storing contents of at least one lecture of a lecturer;
• second storage means for storing questions and corresponding answers related to each lecture stored in said first storage means;
• reproducing means, coupled to said first storage means, for retrieving from said first storage means the contents of an arbitrary lecture which is requested in response to an external request from a first terminal station which is operated by a student at an arbitrary time, and for transferring the retrieved contents to the first terminal station;
• answer obtaining means, coupled to said second storage means, for retrieving from said second storage means an answer which corresponds to a question from the first terminal station, said answer obtaining means interrupting the transfer of the contents of the arbitrary lecture from said reproducing means to the first terminal station when the question is raised from the first terminal station;
• and
• a communication network coupled to the first terminal station and at least a second terminal station which is operated by the lecturer, said first and second storage means, said reproducing means and said answer obtaining means forming a center station which is coupled to said communication network, said reproducing means and said answer obtaining means coupled to said communication network.

A remote lecturing system comprising:

• first storage means for storing contents of at least one lecture of a lecturer;
• second storage means for storing questions and corresponding answers related to each lecture stored in said first storage means;
• reproducing means, coupled to said first storage means, for retrieving from said first storage means the contents of an arbitrary lecture which is requested in response to an external request from a first terminal station which is operated by a student at an arbitrary time, and for transferring the retrieved contents to the first terminal station;
• answer obtaining means, coupled to said second storage means, for retrieving from said second storage means an answer which corresponds to a question from the first terminal station, said answer obtaining means interrupting the transfer of the contents of the arbitrary lecture from said reproducing means to the first terminal station when the question is raised from the first terminal station;
• and
• a ground communication network coupled to the first terminal station and a second terminal station, said first and second storage means, said reproducing means and said answer obtaining means forming a center station providing in a synchronous satellite, said center station communicating with the first terminal station and at least a second terminal station operated by the lecturer.