Abstract: A sensor strip cartridge and a biometric information measuring method and apparatus using the same are provided. The biometric information measuring apparatus includes a cartridge accommodator configured to accommodate a sensor strip cartridge including at least one sensor strip, a cartridge information reader configured to read cartridge information about the sensor strip cartridge from the sensor strip cartridge, a controller configured to receive biometric information through the sensor strip, and correct the received biometric information by using a biometric information correction reference corresponding to the cartridge information, and an outputter configured to output the corrected biometric information.

Abstract: An earphone device having a biological information measuring apparatus, structured to facilitate insertion into a user's ear or to absorb vibration generated by external movement before or after the insertion. To this end, the earphone device includes a speaker portion, a sensor housing rotatably coupled with the speaker portion, a shaft provided in the speaker portion and the sensor housing to couple the speaker portion with the sensor housing such that the speaker portion and the sensor housing rotate together, a support housing coupled with the shaft to pass the shaft therethrough, the support housing supporting rotation of the speaker portion and the sensor housing, and a stopper portion provided in the shaft and the support housing to rotate the speaker portion and the sensor housing and then stop them before or after insertion into a user's ear, thereby facilitating the insertion or urging the speaker portion to contact the user's ear.

Abstract: A portable terminal includes: a key row including a reference resistor, switches separately connected to the reference resistor, and a plurality of resistors connected to the switches, respectively; a reference voltage unit connected to the reference resistor and providing a reference voltage; and a first comparator and a second comparator dividing the reference voltage from the reference voltage unit by the reference resistor and at least one resistor connected to an activated switch, and receiving an analog key input signal corresponding to the divided reference voltage.

Abstract: A method and apparatus for readily measuring a blood pressure without using a cuff includes measuring, by a portable blood pressure measuring apparatus, an electrocardiogram signal and a pulse wave signal, transmitting the measured electrocardiogram signal and pulse wave signal to a portable terminal, calculating, by the portable terminal, a Pulse Transit Time (PTT) and a Pulse Wave Velocity (PWV) using the transmitted electrocardiogram signal and the pulse wave signal, and calculating a blood pressure value based on the PTT and the PWV. Therefore, users may readily measure a blood pressure at any time and place and may be provided with a customized blood pressure measurement result.

Abstract: A method and an apparatus are provided for measuring a pulse frequency in a bio-signal measurement device. A bio-signal collected by a sensor is applied as an input signal of a notch filter. A filter coefficient of the notch filter is adaptively changed according to a result of tracking the bio-signal in the notch filter and calculating a pulse frequency corresponding to the filter coefficient of the notch filter.

Abstract: A method and an apparatus are provided for measuring a pulse frequency in a bio-signal measurement device. A bio-signal collected by a sensor is applied as an input signal of a notch filter. A filter coefficient of the notch filter is adaptively changed according to a result of tracking the bio-signal in the notch filter and calculating a pulse frequency corresponding to the filter coefficient of the notch filter.

Abstract: A portable terminal includes: a key row including a reference resistor, switches separately connected to the reference resistor, and a plurality of resistors connected to the switches, respectively; a reference voltage unit connected to the reference resistor and providing a reference voltage; and a first comparator and a second comparator dividing the reference voltage from the reference voltage unit by the reference resistor and at least one resistor connected to an activated switch, and receiving an analog key input signal corresponding to the divided reference voltage.

Abstract: An earphone device having a biological information measuring apparatus, structured to facilitate insertion into a user's ear or to absorb vibration generated by external movement before or after the insertion. To this end, the earphone device includes a speaker portion, a sensor housing rotatably coupled with the speaker portion, a shaft provided in the speaker portion and the sensor housing to couple the speaker portion with the sensor housing such that the speaker portion and the sensor housing rotate together, a support housing coupled with the shaft to pass the shaft therethrough, the support housing supporting rotation of the speaker portion and the sensor housing, and a stopper portion provided in the shaft and the support housing to rotate the speaker portion and the sensor housing and then stop them before or after insertion into a user's ear, thereby facilitating the insertion or urging the speaker portion to contact the user's ear.

Abstract: An interface device of a mobile communication terminal that enables both universal serial bus (USB) communication and charging functions using an external memory socket, and an interface method in a mobile communication terminal using the interface device are disclosed. The interface device includes: a socket module into which a card is inserted; and an interface control unit determining whether the card inserted into the socket module is an external memory card or a universal serial bus (USB) communication card connected to a USB connection line connecting the mobile communication terminal to a personal computer (PC), and performing a function corresponding to the type of the card.

Abstract: Disclosed is an apparatus for matching a plurality of interfaces. The matching apparatus includes a first matching unit provided in a first interface and a second interface, respectively, a second matching unit that is matched to the first matching unit, and a data transmit/receive unit for transmitting/receiving data by using one of the first and second interfaces that are connected by the matching of the first matching unit and the second matching unit. Therefore, a single port is used to selectively connect an optical interface and a copper interface. It is thus possible to reduce the number of a port in an Ethernet system, etc. and thus minimize the volume of the system.