| Patent application number | Description | Published |
|---|
| 20090184783 | RESONANT STRUCTURE COMPRISING WIRE, RESONANT TUNNELING TRANSISTOR, AND METHOD FOR FABRICATING THE RESONANT STRUCTURE - A resonant structure is provided, including a first terminal, a second terminal which faces the first terminal, a wire unit which connects the first terminal and the second terminal, a third terminal which is spaced apart at a certain distance from the wire unit and which resonates the wire unit, and a potential barrier unit which is formed on the wire unit and which provides a negative resistance component. Accordingly, transduction efficiency can be enhanced. | 07-23-2009 |
| 20090267706 | RESONATOR AND FABRICATION METHOD THEREOF - A resonator fabrication method is provided. A method includes providing a plurality of electrode patterns disposed apart from each other on a substrate using a nano-imprint technique; and forming an extended electrode pattern connected to a plurality of electrode patterns, and forming a nano structure laid across an extended electrode patterns. Therefore, a nano-electromechanical system (NEMS) resonator is easily fabricated at a nanometer level. | 10-29-2009 |
| 20100095497 | MONOLITHIC DUPLEXER - A subminiature, high-performance monolithic duplexer is disclosed. The monolithic duplexer includes a substrate, a transmitting-end filter formed in a first area on an upper surface of the substrate, a receiving-end filter formed in a second area on the upper surface of the substrate, a packaging substrate, bonded on an area on the upper surface of the substrate, for packaging the transmitting-end filter and the receiving-end filter in a sealed state, and a phase shifter, formed on one surface of the packaging substrate and connected to the transmitting-end filter and the receiving-end filter, respectively, for intercepting a signal inflow between the transmitting-end filter and the receiving-end filter. | 04-22-2010 |
| Patent application number | Description | Published |
|---|
| 20100164553 | CURRENT SENSING CIRCUIT - A current sensing circuit includes a power transistor, a sensing transistor configured to copy a current flowing through the power transistor at a predetermined ratio, a current sensing resistor configured to detect a voltage from the current copied by the sensing transistor, an input resistor configured to convert an input voltage to a current, a cross self-biasing cascade block configured to adjust currents at both ends of the input resistor, and a common gate transistor and a reference resistor configured to convert a current output of the input resistor to a final sense voltage. | 07-01-2010 |
| 20100164593 | FAST DIFFERENTIAL LEVEL SHIFTER AND BOOT STRAP DRIVER INCLUDING THE SAME - A boot strap driver including a fast differential level shifter are disclosed. The fast differential level shifter may include a first differential amplifier differentially amplifying a pulse width modulation signal and an inverted pulse width modulation signal and outputting a first differential amplification voltage and a second differential amplification voltage based on the amplified result. The fast differential level shifter may also include a second differential amplifier differentially amplifying the first differential amplification voltage and the second differential amplification voltage, and shifting the differential amplification voltages to voltages having an output range between a first voltage and a second voltage based on the amplified result. | 07-01-2010 |
| 20100271251 | Serial Interface, Apparatus Including the Same, and Method of Using the Same - An apparatus for transferring serial data (e.g., a serial interface using a single wire) generally includes a detector configured to detect a first level time period and a second level time period of an input signal, and a computing unit configured to compute a duty or duty cycle of the input signal and generate an output signal based on the duty or duty cycle. | 10-28-2010 |
| Patent application number | Description | Published |
|---|
| 20090121867 | INDOOR LOCATION SYSTEM HAVING SENSOR AND METHOD FOR CHECKING LOCATION USING THE SAME - An indoor location system having a sensor and a method for checking an indoor location using the indoor location system are disclosed. The method includes: calculating a current location coordinate by using nodes; calculating a first movement distance by comparing the current location coordinate and a stored previous location coordinate; calculating a second movement distance through a sensor; and storing the current location coordinate instead of the previous location coordinate when the distance between the first movement distance and the second movement distance is smaller than a predetermined threshold value. Accordingly, an accurate location of an object can be recognized indoors and an error can be prevented from being caused when the location of the object is recognized. | 05-14-2009 |
| 20090174549 | APPARATUS AND METHOD FOR TRACKING INDOOR TARGET USING WIRELESS DISTANCE MEASURING TECHNOLOGY - A method and system for sensorless tracking of an indoor target using a wireless distance measuring technology. A location tracking apparatus is initially moved, and then it is determined whether or not an initial traveling direction of the location tracking apparatus is forward or backward with respect to the target. A minimum distance between the location tracking apparatus and the target during the movement is determined, the minimum distance is stored, and the location tracking apparatus is moved to a location corresponding to the minimum distance, where it is determined whether the location tracking apparatus is directed forward or backward with respect to the target at the location corresponding to the minimum distance. The location tracking apparatus is then moved to the target. | 07-09-2009 |
| 20090207070 | METHOD AND APPARATUS FOR MEASURING DISTANCE IN A WIRELESS ENVIRONMENT - A method and apparatus for measuring a distance in a wireless environment are provided, in which a first device transmits a distance measurement signal to a second device and receives at least one response signal for the distance measurement signal from the second device, matches the received response signal with a reference signal to detect an earliest response signal, and calculates a time taken from the transmission of the distance measurement signal to the second device and the reception of the response signal from the second device using a peak value of the matched reference signal. | 08-20-2009 |
| 20090209268 | LOCATION SENSING SYSTEM AND METHOD FOR MOBILE COMMUNICATION SYSTEM - A location sensing system and method for a mobile communication system is provided for maintaining location sensing service with the support of mobile nodes when there is an insufficient number of anchor nodes for reference points. A location sensing method for a mobile communication system includes discovering, at a source mobile node, anchor nodes in a vicinity; discovering, when a number of discovered anchor nodes is less than a predetermined number of reference nodes required for location sensing, neighboring mobile nodes; selecting at least one of neighboring mobile nodes as a reference mobile node; and computing a location of the source mobile node in cooperation with the predetermined number of reference nodes including the discovered anchor nodes and the reference mobile node. | 08-20-2009 |
