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Han, GA
Allenn Han, Atlanta, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20100151907 | SHARING ANTENNAS FOR INCREASED MULTIPLE-INPUT UPLINK RECEPTION - The claimed subject matter facilitates sharing antennas among carriers co-located at a base station such to increase throughput of the individual carriers. Thus, the carriers can effectively receive multiple-input/multiple-output (MIMO) from mobile devices though the individual antennas of the carrier alone are not sufficient to receive such signals. A co-sharing interface is provided that takes signals from antennas of one carrier and forwards the signals to a second co-located carrier. In this regard, a carrier can receive signals from a related set of antennas as well as the co-sharing interface component (from a set of antennas related to a disparate carrier) and process the signals in conjunction. Thus, the signals can be disparate portions of a MIMO signal. In addition, the co-sharing interface can modify the signals as defined by the carrier receiving the signals from the interface, such as by applying gain control, alarming, bypass circuitry, and/or amplification. | 06-17-2010 |
| 20110009085 | E911 Services Using Distributed Nodes - Distributed node systems and methods provide emergency call services to users indoors. A distributed node can be located in a building and configured to receive call requests from users in the building. The distributed node can transmit call requests to a central node that relays the call requests to a wireless network. The distributed node can also transmit node identifying information with the call request, which may be relayed to the wireless network. The wireless network can determine that a call request is a request for an emergency call and obtain location information and emergency services provider routing information based on a node identifier. The wireless network can transmit the location information to the emergency services provider using the emergency services provider routing information and set up the requested call. | 01-13-2011 |
Dong Hoon Han, Alpharetta, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20100145651 | SELF-CALIBRATION SYSTEMS AND METHODS - Various embodiments of self-calibration systems and methods are described. One method embodiment, among others, includes imposing an alternate test to components within the device, responsive to the imposition of the alternate test, providing test responses corresponding to the components, and substantially, simultaneously mapping each of the test responses to corresponding specification values of the components. | 06-10-2010 |
Jeonghu Han, Atlanta, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20090174477 | MULTI-SEGMENT PRIMARY AND MULTI-TURN SECONDARY TRANSFORMER FOR POWER AMPLIFIER SYSTEMS - Embodiments of the invention may provide for power amplifier systems and methods. The systems and methods may include a power amplifier that generates a first differential output signal and a second differential output signal, a primary winding comprised of a plurality of primary segments, where a first end of each primary segment is connected to a first common input port and a second end of each primary segment is connected to a second common input port, where the first common input port is operative to receive the first differential output signal, and where the second common input port is operative to receive the second differential output signal, and a single secondary winding inductively coupled to the plurality of primary segments. | 07-09-2009 |
| 20090174480 | Systems and Methods for Cascode Switching Power Amplifiers - Example embodiments of the invention may provide systems and methods for a power amplifier. The systems and methods may include a first common-source device having a first source, a first gate, a first drain, and a first body, where the first source is connected to the first body, and wherein the first gate is connected to an input port. The systems and methods may further include a second common-gate device having a second source, a second gate, a second drain, and a second body, where the second source is connected to the first drain, where the second source is further connected to the second body, and where the second drain is connected to an output port. | 07-09-2009 |
| 20090184786 | MULTI-SEGMENT PRIMARY AND MULTI-TURN SECONDARY TRANSFORMER FOR POWER AMPLIFIER SYSTEMS - Embodiments of the invention may provide for power amplifier systems and methods. The systems and methods may include a power amplifier that generates a first differential output signal and a second differential output signal, a primary winding comprised of a plurality of primary segments, where a first end of each primary segment is connected to a first common input port and a second end of each primary segment is connected to a second common input port, where the first common input port is operative to receive the first differential output signal, and where the second common input port is operative to receive the second differential output signal, and a single secondary winding inductively coupled to the plurality of primary segments. | 07-23-2009 |
| 20100148871 | SYSTEMS AND METHODS FOR AN ADAPTIVE BIAS CIRCUIT FOR A DIFFERENTIAL POWER AMPLIFIER - Systems and methods for providing an adaptive bias circuit that may include a differential amplifier, low-pass filter, and common source amplifier or common emitter amplifier. The adaptive bias circuit may generate an adaptive bias output signal depending on input signal power level. As the input power level goes up, the adaptive bias circuit may increase the bias voltage or bias current of the adaptive bias output signal. A power amplifier (e.g., a differential amplifier) may be biased according to the adaptive bias output signal in order to reduce current consumption at low power operation levels. | 06-17-2010 |
| 20110043316 | OVERLAPPING COMPACT MULTIPLE TRANSFORMERS - Systems and methods are provided for overlapping compact multiple transformers. The systems and methods may include a first transformer section that includes a first primary winding section and a first secondary winding, where the first primary winding section is inductively coupled to the first secondary winding, where the first transformer section is associated with a first rotational current flow direction in the first primary winding section; and a second transformer section that includes a second primary winding section and a second secondary winding, where the second primary winding section is inductively coupled to the second secondary winding, wherein the second transformer section is associated with a second rotational current flow direction in the second primary winding section, where a first portion of the first primary winding section is adjacent to a second portion of the second primary winding section, where the adjacent first and second portions include a substantially same first linear current flow direction. | 02-24-2011 |
Ki Jin Han, Atlanta, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20100094609 | Modeling electrical interconnections in three-dimensional structures - Disclosed are apparatus, methods and software that implement a partial element equivalent circuit (PEEC) method having global basis functions on cylindrical coordinates to determine wide-band resistance, inductance, capacitance, and conductance from a large number of three-dimensional interconnections in order to provide for the electrical design of system-in-package (SIP) modules, and the like. The apparatus, methods and software use a modal equivalent network from mixed potential integral equation with cylindrical conduction and accumulation mode basis functions, which reduces the matrix size for large three-dimensional interconnection problems. Combined with these modal basis functions, the mixed potential integral equations describe arbitrary skin and proximity effects, and allow determination of partial impedance and admittance values. Additional enhancement schemes further reduces the cost for computing the partial inductances. Therefore, the apparatus, methods and software can be used to construct accurate models of a large number of three-dimensional interconnection structures, including more than 100 bonding wires used for stacking integrated circuit chips, through-silicon via interconnections, and the like. | 04-15-2010 |
Young Han, Kathleen, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20120135905 | Aerosol Electrical Contact Cleaning and Lubricating Compound - An aerosol electrical contact cleaning and lubricating compound formulation including a first solvent, a second solvent, a third solvent, a lubricant, and a propellant. The first solvent is a mixture of methyl nanofluoroisobutyl ether and methyl nanofluorobutyl ether. The second solvent is a dichloroethylene, while the third solvent is an alkyl cyclohexane. The lubricant is perfluropolyether oil, and the propellant is a hydrofluorocarbon liquefied gas. | 05-31-2012 |
Young Kyu Han, Doraville, GA US
| Patent application number | Description | Published |
|---|---|---|
| 20120083194 | MECHANICAL DRAFT SYSTEMS - A representative mechanical draft system for drawing exhaust gasses from a chimney includes: an exhaust fan assembly having: a housing defining a chamber and having opposing openings, the opposing openings having a centerline extending therebetween, a first of the openings being operative to intake a flow of gasses, a second of the openings being operative to exhaust the flow of gasses from the chamber; and a centrifugal fan having a motor and an impeller, the motor being mounted external to the housing, the impeller being positioned within the chamber, a rotational axis of the impeller being inclined with respect to the centerline extending between the openings of the housing. | 04-05-2012 |