Abstract:
A business card and an advertising article attached with an RFID(Radio Frequency Identification) tag recording location information are provided to enable a user to set the destination easily by an RFID reader in navigation equipment and to prevent a setting error by recognizing the geographical location of the destination on a digital map even by the RFID reader. In a business card and an advertising article attached with an RFID tag(102) recording location information, the RFID tag recording location information such as GPS(Global Positioning System) coordinates is attached to an identification card(101) including the business cards distributed to inform the user's position and location. A user of digital map equipment such as a cellular phone or navigation sets the geographical location of the destination and operates the digital map equipment easily.
Abstract:
PURPOSE: A preparation method of a natural antibacterial and antifungal composition for fiber is provided to supply the vegetable antibacterial and antifungal having the excellent stability and good antibacterial and antifungal activity effectively. CONSTITUTION: The preparation method of the natural antibacterial and antifungal composition for fiber comprises the steps of: mixing the epicarp of the ginkgo fruit and an extracting solvent(at least one solvent selected from the group consisting of water, methanol, ethanol, isopropanol, chloroform, ethyl acetate, acetone and acetonitrile) in a ratio of 1:1 to 1:200, extracting and filtrating to obtain a dark brown extract liquid; and mixing the extract liquid and an emulsifier to obtain a composition.
Abstract:
PURPOSE: An authentication service method of different authentication systems is provided to establish worldwide electronic commercial transaction safely and freely even using different authentication systems by providing authentication gateway capable of implementing authentication service with a connection of different authentication systems. CONSTITUTION: When a user of a CA(certificate authority) A and a user of a CA B desire to communicate with each other through Internet or similar network, the user of CA A requests public key of an authentication gateway and receives it. The user of CA A identifies that the other person is a user of CA B. When the other person is a user of CA B, authentication gateway and session key are shared and encrypted and then transmitted to authentication gateway. When the other person is not a user of CA B, the result is notified to the user of CA A and stored in a database. Authentication gateway requests public key of user of CA B to CA B and receives the same before decoding of encrypted documents in the gateway. The gateway encodes original documents of user of CA A with session key of gateway and user of CA A, and then encrypts the same with session key of gateway and user of CA B. The gateway transmits cryptogram to user of CA B and stores the result in database. The user of CA B identifies the original documents with encoding of transmitted documents.