Abstract: Disclosed is an integrated circuit card which includes a circuit for generating a clock signal and for restoring data. The circuit includes a receiver for receiving a radio frequency signal having a pause period; a divider for dividing the received signal; a first counter for counting a period of the divided signal at each non-pause period of the received signal; a second counter for counting a period of the divided signal; and a decoder for generating a synchronous clock signal and a decoded data signal in response to outputs of the first and second counters. The second counter is reset by the synchronous clock signal. The circuit is capable of generating a synchronous clock signal and decoding a received data signal so as to be compatible with ISO/IEC 14443 Type A protocol, based on the received radio frequency signal that is transferred from a card reader.

Abstract: 1.

Abstract: The present invention relates to a computer-readable record medium for storing programs of realizing a method for processing payments and deliveries in the electronic commerce business.

Abstract: The present invention relates to an apparatus for realizing personal shops in electronic commerce business. It is an object of the present invention to provide an apparatus for realizing personal shops in an electronic commerce business, which enables users to use shopping malls easily and conveniently by presenting contents screens fit for the member specialties by members and recommending goods suitable for the purchase pattern of the users.

Abstract: System and method for transacting with graded prices by users based on a network are disclosed, which classify users who wishes to purchase goods through electronic commerce business sites into predetermined grades by predetermined criteria and provides graded prices information with respect to the same goods by classified grades.