Abstract: A patent map (PM) database (DB) is constructed by employing a PM technique classification system and a technique classification PM DB. PM related information obtained by accessing a PM related server through Internet is provided and PM related information produced by an operator of the PM technique classification system is generated. A lower rank technique connection point and a higher rank technique connection point are connected between technique classification columns in the DB by using the PM related information, allowing at least one bibliographical data to be described in the lowest technique classification column of the lowest rank and storing technique classification information in the technique classification PM DB.

Abstract: A data access method for subscriber location information in storing and controlling subscriber location information in a digital mobile communication network is disclosed. The data access method provides a search procedure, an addition procedure and a deletion procedure for the subscriber location information using a database of a main memory and a hardware of a sub memory, thereby embodying a real time system based on the main memory database and being capable of satisfying a fast response characteristic and high data process amounts demanding for the subscriber location information control.