Abstract: A method for receiving a broadcast service and a unicast service by a UE is provided. The method includes calculating a candidate interval for receiving the unicast service by referring to scheduling information of the broadcast service by the UE, when the unicast service begins to be provided through another frequency band other than a dedicated frequency band for the broadcast service while the UE receives the broadcast service through the dedicated frequency band; notifying the scheduling information of the broadcast service and the calculated candidate interval to an ENB in charge of scheduling of the unicast service by the UE; and switching to said another frequency band and receiving the unicast service in the candidate interval, while switching to the dedicated frequency band and receiving the broadcast service in another interval other than the candidate interval, by the UE.

Abstract: A method for controlling a slotted mode of several systems using one sleep controller enhanced a hybrid sleep controller that performs sleep/wake-up interface of system protocol stacks (PSs) in a hybrid terminal including at least two system PSs used for different communication networks of a mobile communication system. The method includes determining whether there is a shared hardware-waiting system according to a sleep request from a system PS; if there is no shared hardware-waiting system, turning off a clock of the sleep controller and power of shared hardware to enable operation in a real sleep mode; and if there is a shared hardware-waiting system, sending an active command to a corresponding system and simultaneously driving a sleep timer until a time that other systems wake up, to enable operation in a virtual sleep mode.

Abstract: An apparatus of compensating for a frequency offset using a guard interval and a pilot symbol, which are inserted at a transmitter, in an OFDM (Orthogonal Frequency Division Multiplexing) system. The OFDM system receives an OFDM signal in which a pilot symbol is inserted in data of a frame unit at regular intervals and a guard interval is inserted in a data symbol. In the system, a first carrier synchronizer receives a data symbol stream obtained by converting the OFDM signal to digital data, and detects a guard interval of each data symbol, to compensate for a coarse frequency offset. A fast Fourier transform part OFDM-demodulates a signal output from the first carrier synchronizer. A second carrier synchronizer detects the pilot symbol from the demodulated data symbol stream to compensate for a fine frequency error.

Abstract: A method for requesting retransmission of high-speed packet data in a receiving Automatic Retransmission reQuest (ARQ) entity of a mobile communication system that simultaneously performs Hybrid Automatic Retransmission reQuest (HARQ) and ARQ. The method includes, upon receipt of a packet, determining a sequence number of the received packet, and determining if there is at least one missing packet preceding the received packet; if there is at least one missing packet, driving a first timer which is set to a time required when a number of retransmission attempts reaches a predetermined maximum number of HARQ retransmissions, and monitoring receipt of the missing packet; and upon expiration of the timer, sending to a transmitting ARQ entity an Acknowledgement (ACK) including a last sequence number among sequence numbers of normally received consecutive ARQ packets.

Abstract: In a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, and a method of non-invasively measuring the concentration of the body component, the non-invasive body component measuring apparatus includes a light source unit for generating light of a predetermined wavelength and for applying the light onto the measuring portion, a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal, a signal processing unit for processing the electrical signal, and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement.

Abstract: A method for retransmitting high-speed packet data in a transmission apparatus of a mobile communication system that simultaneously performs Automatic Retransmission reQuest (ARQ) that retransmits an ARQ packet reconfigured by allocating a sequence number to data delivered from an upper layer, and Hybrid Automatic Retransmission reQuest (HARQ) that multiplexes a plurality of ARQ packets into one HARQ packet and performs repeated retransmission on the HARQ packet within a maximum retransmission limit value. A transmitting HARQ entity checks a missing ARQ packet and sends a Negative Acknowledgement (NACK) for the missing ARQ packet to a transmitting ARQ entity. The transmitting ARQ entity receives an Acknowledged (ACK) for ARQ packets from a receiving ARQ entity, detects at least one missing ARQ packet according to the NACK and the ACK, configures a retransmission packet with the detected ARQ packet, and retransmits the retransmission packet.

Abstract: A blood component measuring apparatus includes a fixing apparatus for fixing a body part of an examinee, the body part including a tissue to be examined, a light source portion for radiating light onto the tissue to be examined, the tissue to be examined covering the light source portion, a photodetector for detecting light passing through the tissue to be examined, the photodetector facing the light source portion, and an analyzer for analyzing the light detected by the photodetector, wherein the fixing apparatus includes first and second fixing members for fixing first and second portions of the body part, respectively, the first and second portions of the body part being connected to the tissue to be examined, wherein the first and second fixing members are operable to move depending on a location of the tissue to be examined.

Abstract: Provided are an apparatus and a method of driving a high-efficiency plasma display panel for quickly eliminating a free-wheeling current, generated due to the parasitic effect in an energy recovery circuit, thereby improving energy recovery efficiency.

Abstract: A timing error compensation system in an OFMD/CDMA communication system includes an analog-to-digital converter for converting an OFDM signal, comprised of a data symbol stream in which a pilot symbol is inserted at intervals of a prescribed number of data symbols, received from a transmitter, to a digital OFDM symbol stream by prescribed sampling synchronization, a guard interval remover for removing a guard interval inserted in the OFDM symbol by prescribed frame synchronization, and a fast Fourier transform (FFT) device for performing fast Fourier transform on the guard interval-removed OFDM symbol and outputting a data symbol stream. In the time error compensation system, a pilot symbol detector receives the data symbol stream and detects the pilot symbols inserted in the data symbol stream at prescribed intervals.

Abstract: An apparatus and method for acquiring a pilot channel in a code division multiple access (CDMA) system. A signal strength detector detects signal strength values for all pseudo-random noise (PN) hypotheses from a despread received signal. A PN hypothesis selector selects PN hypotheses whose detected signal strength values are greater than or equal to a particular threshold. A searcher controller sorts the selected PN hypotheses in order of a high signal strength value, and generates PN sequences in the order of the high signal strength value. A PN sequence generator generates PN sequences for the PN hypotheses. A PN mask shifts a signal output of the PN sequence generator to a position of a PN hypothesis, according to signal strength.

Abstract: A PN sequence phase searching apparatus in a multi-carrier CDMA mobile communication system. At least two PN sequence phase searchers search for the PN sequence phase of one of at least two different band input signals on different assigned search conditions and output PN phase and energy information. A controller assigns the different search conditions to the PN sequence phase searchers and determines a minimum phase variation period based on the PN phase and energy information received from the PN sequence phase searchers.

Abstract: A plasma display panel is provided, including lower and upper substrates separated from each other to form a discharge space therebetween. A plurality of partitions are provided between the lower and upper substrates to partition the discharge space to define the discharge cells, and a plurality of first and second discharge electrodes generate a discharge within the discharge cells. A plurality of fluorescent layers are provided to inner surfaces of the discharge cells, each of the fluorescent layers being exited by the discharge to generate visible rays of light, and a plurality of light shielding elements are provided to the upper substrate to prevent external rays of light from entering the discharge cells, wherein a plurality of light focusing elements provided to the upper substrate focus the visible rays of light generated in the discharge cells and emit the visible light.

Abstract: In a non-invasive body component measuring apparatus for measuring a concentration of a body component in a measuring portion of a living body, and a method of non-invasively measuring the concentration of the body component, the non-invasive body component measuring apparatus includes a light source unit for generating light of a predetermined wavelength and for applying the light onto the measuring portion, a detection unit for detecting light reflected or transmitted by the measuring portion and for converting the detected light into an electrical signal, a signal processing unit for processing the electrical signal, and a body-apparatus interface unit for fixing a periphery of the measuring portion during measurement.

Abstract: Provided are an energy recovery apparatus and method for recovering energy in a plasma display panel (PDP) at improved efficiency using a single energy storage device and a small number of devices regardless of the number of pixels that become conductive as a result of the screen state. The energy recovery apparatus includes a first closed circuit, which supplies predetermined source voltage to pixels for conduction according to a predetermined switching sequence; a second closed circuit, which uses a single energy storage device to recover energy discharged from the pixels that have been charged by the first closed circuit; and a third closed circuit, which transfers the energy stored in the energy storage device to pixels for conduction according to the predetermined switching sequence.

Abstract: A blood component measuring apparatus includes a fixing apparatus for fixing a body part of an examinee, the body part including a tissue to be examined, a light source portion for radiating light onto the tissue to be examined, the tissue to be examined covering the light source portion, a photodetector for detecting light passing through the tissue to be examined, the photodetector facing the light source portion, and an analyzer for analyzing the light detected by the photodetector, wherein the fixing apparatus includes first and second fixing members for fixing first and second portions of the body part, respectively, the first and second portions of the body part being connected to the tissue to be examined, wherein the first and second fixing members are operable to move depending on a location of the tissue to be examined.

Abstract: A highly-efficient device and method for driving a plasma display panel, by which the voltage stresses of circuit elements, which constitute the driving device, are significantly reduced, and power consumption and heat emission are accordingly reduced. Charging and discharging modes, which constitute a sustain mode, are divided into two first and second charging modes, which are pre-charging and post-charging modes, and two first and second discharging modes, which are pre-discharging and post-discharging modes, respectively. The plasma display driving device is designed so that the two charging modes form different resonance paths passing through different inductors, and the two discharging modes also form different resonance paths passing through different inductors. Consequently, voltage stresses applied to the elements of the driving device are halved.