Abstract: A method of predicting the search needs of a computerized database search user. The present invention uses a topical database comprising a plurality of categories. Each category is referenced and/or related to other categories. The present invention also uses a document database and an anticipated search term database wherein documents and anticipated search terms are correspondingly assigned to a respective topical category. Upon receiving an initial search term, the present invention locates the initial search term within the anticipated search term database and assigns the topical category of the matched anticipated search term to the initial search term. The present invention then retrieves document information for assigned documents of the topical category assigned to the initial search term as well as retrieves document information for assigned documents of any referenced and/or related topical categories to the initial search term topical category.

Abstract: A credit card capable of automatic dialing by generating DTMF signals. The credit card is comprised of two thin plastic boards 2 and 3 adhering to each other. The plastic board 2 includes a magnetic stripe 11, while the plastic board 3 includes a solar power battery 21, paper speaker (SP) 22, dial selection key 23 and a circuit board 25. When the dial selection key 23 is pressed, the DTMF signals are generated based on the corresponding telephone number, and outputted from the SP 22. Desired telephone numbers inputted by a user can be stored by using EEPROM 102, four buttons 101 and dial selection buttons 23.