| 摘要 |
A communication system for processing information for distribution includes: a central data station 18, a plurality of user stations 10, 12, 14 and a communication link 16 interconnecting the central station with each of the user data stations. The central station includes means for periodically and cyclically accessing each of selected ones of the user stations, means for accessing the data base at each of the accessed user stations, means for dividing the data base into a plurality of categories, a data base storage area for storing each of the categories, means for augmenting each of the categories from each accessed user data base, means for accessing each of the categories in accordance with an authorized user station request, and means for transmitting the accessed category to the requesting user. |
