Abstract: Disclosed are an electrochemical biosensor which comprises a production lot information identification portion, on which information is recorded in a magnetization mark, and a measuring device which can automatically identify the production lot information of the biosensor with the insertion of the electrochemical biosensor into the measuring device. The electrochemical biosensor and the measuring device thereof can record production lot information in the form of magnetization marks on an electrochemical biosensor strip and read the information as digital signals through a magnetoresistance sensor device, which can be mounted on the surface of a circuit board using Surface Mounted Technology (SMT). Without the need for a high-priced filter or a complicated calculation system, the magnetic detector system has a simple construction and realizes economic efficiency in the construction of the measuring device.

Abstract: Provided are a method of and apparatus for processing a virtual local area network (VLAN) tag frame. The apparatus includes a filtering data base (FDB) for storing a VLAN tag frame which is created by a gigabit passive optical network (GPON) master; an uplink processing unit for removing by referring to the FDB a VLAN tag from the VLAN tag frame which is received from the GPON master, and transmitting a data frame to an Ethernet switch; and a downlink processing unit for inserting by looking up the FDB a VLAN tag into the data frame which is received from the Ethernet switch, and then transmitting the data frame to the GPON master. According to the present invention, port identification (ID) information that is lost in a GPON master may be provided to a switch above the GPON master by using a VLAN tag frame processing technology.