Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.

Abstract: An inorganic proton conductor and an electrochemical device using the inorganic proton conductor, the inorganic proton conductor including a tetravalent metallic element and an alkali metal.

Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.

Abstract: There is provided a transformer improved in leakage inductance including: a core having first, second and third legs electromagnetically coupled to one another; a primary winding formed of a conductor having one end and another end receiving power from the outside and dividedly wound around the first, second and third legs; and a secondary winding wound around at least one of the first, second and third legs and receiving induced power by electromagnetic induction with the primary winding.

Abstract: The present invention relates to a load sharing device and a parallel power supply therewith. There is provided a parallel power supply, including: a plurality of power supply modules each connected to a single load in parallel to provide balanced output currents to the single load; a common voltage control signal output unit that generates a common voltage control signal from output voltages of the plurality of power supply modules and outputs the common voltage control signals to the plurality of power supply modules; and output voltage control units that are provided in the respective plurality of power supply modules to detect output currents of the plurality of power supply modules and to control output voltages of the plurality of power supply modules according to the detected signals, controlling the output voltages to be in a predetermined voltage range according to the common voltage control signals.

Abstract: Disclosed is a Bluetooth headset including: a headset body, which is a casing having an earphone part; a function button embedded in a rear or lateral side of the headset body, which is used to operate a function of the Bluetooth headset, wherein in a storage space of the headset body, a circuit board is placed, the circuit board being designed for mounting an operating switch (such as an electric button switch) that operates by cooperation with the function button; and a position changing means for changing a position of the function button with respect to the operating switch according to an operation of the function button by a user, wherein the function button and the operating switch are aligned with or misaligned from each other by the position changing means, so that a pressing of the function button provides an operable unlocked state or a non-operable locked state where operation or non-operation of the operating switch is selectively carried out.

Abstract: The present invention provides a power supply for a server including: a PFC (Power Factor Correction) unit for meeting harmonic regulation by being connected to an input power source; a DC/DC unit including a switching stage provided with at least one switching device to switch a voltage of a link capacitor as an output voltage of the PFC unit to a predetermined operation frequency and a DC/DC stage driven by the switching stage; a DC/DC control unit for controlling the DC/DC unit by being connected to the switching device; and a frequency varying circuit unit for supplying the DC/DC control unit with a frequency control signal to adjust the operation frequency of the switching device according to load after detecting an output current of the link capacitor and acquiring load information.

Abstract: Disclosed is a headset assembly for Bluetooth equipment. The headset assembly (H) for Bluetooth communication with mobile communication equipment includes an earphone body part (20) and a main body part (30) provided individually and connected to each other such that the earphone body part (20) and the main body part (30) can be hingedly rotated relative to each other about a hinge shaft (10), a carrying cap (50) selectively coupled to the earphone body part (20) or the main body part (30), the carrying cap (50) constituting a housing body together with the earphone body part (20) and the main body part (30), and a means mounted to the housing body for generating a switching signal to electrically open and close the headset assembly.

Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.

Abstract: Provided is a transformer having resonant inductance, the transformer including a core that includes a first leg formed in one side thereof, a second leg which is formed in the other side thereof so as to be electromagnetically coupled to the first leg, and a third leg which is formed between the first and second legs so as to be electromagnetically coupled to the first and second legs; a primary winding that is wound around one side of the third leg; a secondary winding that is wound around the other side of the third leg so as to induce power through electromagnetic induction with the primary winding; and a resonant inductance winding that is wound around the outside of the core so as not to be magnetically induced by magnetic fluxes generated from the primary and secondary windings.

Abstract: There is provided a variable switching frequency type power supply that can achieve high efficiency by fixing a switching duty cycle to 50% and varying switching frequency. A variable switching frequency type power supply according to an aspect of the invention may include: a switching unit switching input power; a transformation unit converting a voltage level of the power switched by the switching unit into a predetermined voltage level; a rectification unit rectifying the power converted by the transformation unit; and a control unit fixing a switching duty cycle of the switching unit to a predetermined switching duty cycle, and varying switching frequency of the switching unit according to a voltage level of output power.

Abstract: A phase shift full bridge converter with a reduced current stress includes: a switching unit that switches an input voltage; a transformer that includes a first capacitor serially connected to, and having a primary side and a secondary side; an auxiliary circuit unit that includes a first switch, a second switch, and a second capacitor, which are connected in parallel to the secondary side of the transformer; and a rectification unit that is connected to the auxiliary circuit unit, with an output inductor being removed.

Abstract: A memory card including a memory controller, a memory system and a method to control a memory are provided. The memory card includes a flash memory, a memory interface outputting a writing data signal to be written into the flash memory, and a multi-level converter transforming the writing data signal into a writing voltage signal to be provided to the flash memory. The writing voltage signal has one of different voltage levels in accordance with plural bits of the writing data signal.

Abstract: Computer systems and related methods are provided for managing connections to storage devices. The computer system includes a connector and a register. The connector includes a plurality of pins configured to be removably connected to a first storage device and to a second storage device. A first pin of the connector carries a signal that indicates when the connector is connected to the first storage device, and a second pin carries a signal that indicates when the connector is connected to the second storage device. The register stores connection information that indicates whether the first storage device and/or the second storage device are connected to the connector.

Abstract: A semiconductor memory device and methods thereof are provided. The example semiconductor memory device may include a memory cell configured to store data, a storage unit configured to store at least one data pattern, a data output circuit configured to output the stored data during a first type of read operation and configured to output the at least one data pattern during a second type of read operation and an output control circuit for controlling the data output circuit such that the memory cell is not accessed during read operations of the second type. A first example method may include storing at least one data pattern in a storage unit, outputting the stored data within the memory cell in response to a first type of read operation and outputting the at least one data pattern in the storage unit in response to a second type of read operation and blocking access to the memory cell during read operations of the second type.

Abstract: In accordance with the present invention, the switching power supply device using a current sharing transformer includes an inverter switching unit for switching an input voltage; a share inductor for classification connected to the inverter switching unit for distributing a current applied by the inverter switching unit; first and second transformers of which each primary side connected to the share inductor for classification is connected in parallel to each other; and a rectifying unit connected to secondary sides of the first and second transformers.

Abstract: There are provided an integrated transformer in which a power conversion transformer and an inductor for stabilizing output power by the transformer are integrated into one transformer structure, and a power supply using the same. An integrated transformer according to an aspect of the invention includes: a core part including: first and second supports; and first and second outer legs and a center leg provided between the first and second supports, and magnetically connecting the first and second supports to each other, wherein a cross-section of the first and second outer legs and a cross-section of the center leg have a width of the first support and a width of the second support in a longitudinal direction, respectively, and a width of each of the first and second outer legs exceeds 0.5 times a width of the center leg but does not exceed 2 times the width of the center leg.

Abstract: A memory card including a pad, a drive circuit activating the pad in accordance with an input signal, and a controller regulating a drive voltage level and a drive point of an output signal generated from the drive circuit in accordance with a voltage level of the output signal of the drive circuit. The controller may include a delay circuit, generating a second clock signal by delaying a first clock signal provided from an external source and generating a second clock signal from the first clock signal. The controller may further include a detection circuit capturing the voltage level of the output signal of the drive circuit as a first detection voltage in sync with the first clock signal and capturing the voltage level of the output signal of the drive circuit as a second detection voltage in sync with the second dock signal.

Abstract: Embodiments of the present invention include a data output circuit that can read data in parallel from a plurality of latches in a pipeline circuit. Even-numbered data and odd-numbered data are simultaneously output over a single clock cycle, and are then converted into DDR data and are then serially output. By moving data in this manner, embodiments of the invention can reduce the number of necessary control signals by as much as 50% over conventional data output circuits.

Abstract: There is provided a transformer improved in leakage inductance including: a core having first, second and third legs electromagnetically coupled to one another; a primary winding formed of a conductor having one end and another end receiving power from the outside and dividedly wound around the first, second and third legs; and a secondary winding wound around at least one of the first, second and third legs and receiving induced power by electromagnetic induction with the primary winding.