Patent application number | Description | Published |
20080240043 | METHOD FOR PERFORMING HANDOVER BY CONSIDERING QUALITY OF SERVICE IN BROADBAND MOBILE COMMUNICATION SYSTEM AND SYSTEM FOR PROVIDING THE SAME - A system and method for performing a handover of a mobile station (MS) by considering Quality of Service (QoS) in a broadband mobile communication system. The method can include the steps of: receiving information about one or more neighbor base stations and reception strengths for the neighbor base stations from a Serving Radio Access System (RAS) currently communicating with the MS; extracting a value of a specific field from the received information about the neighbor base stations; combining the extracted value of the specific field with the reception strengths to thereby obtain combined values, and selecting a maximum value among the combined values; and transmitting a handover (handoff) request message to a base station corresponding to the selected maximum value. The system includes an MS that analyzes information about neighbor stations received in a Mobile Neighbor Base-station Advertisement (MOB_NBR_ADV) message to select a target RAS. | 10-02-2008 |
20080259834 | CROSS-LAYER OPTIMIZATION METHOD FOR CONTROLLING BIT RATE OF VIDEO CODEC IN TRANSMISSION OF VIDEO DATA IN WIBRO SYSTEM - A cross-layer optimization method for controlling a bit rate of a video coder/decoder (codec) in video data transmission for wireless devices such as a wireless broadband (WiBro) system terminal that adapts to changing transmission/reception characteristics and usage. The method typically includes checking, by a sender, radio channel state information of a sender side and a receiver side; determining, by the sender, a transmission bit rate of a video codec by using the radio channel state information of the sender side; and adjusting, by the sender, the transmission bit rate of the video codec by using the radio channel state information of the receiver side when a communication network used by a receiver typically based on the type of a communication network being used by the sender. | 10-23-2008 |
20090022218 | METHOD FOR CONTROLLING MOVING PICTURE ENCODING USING CHANNEL INFORMATION OF WIRELESS NETWORKS - Disclosed is a method for controlling bit rates in consideration of wireless channel environment by an apparatus that transmits and receives moving picture encoding data via a wireless network. The apparatus for transmitting/receiving data through a wireless communication network connected to the apparatus including a channel state analyzing unit for analyzing a wireless channel environment, an encoding controller for generating control information containing information about a quantization parameter, skip or non-skip of frames indication, frame type indication, and use or non-use of an Error Resilient Tool (ERT) indication, in consideration of an analyzation result received from the channel state analyzing unit, a moving picture encoding unit for encoding incoming moving picture data, based on the control information received from the encoding controller; and a data transmitting/receiving unit for transferring the encoded moving picture data through the wireless channel to an exterior. | 01-22-2009 |
20090097405 | METHOD FOR SETTING OUTPUT BIT RATE FOR VIDEO DATA TRANSMISSION IN A WIBRO SYSTEM - A method for setting an output bit rate for video data transmission in a WiBro system in which an uplink state value for a predetermined unit time is calculated to determine an uplink network state of the predetermined unit time. An average of uplink state values for a predetermined number of unit times is calculated, and a video encoding bit rate is increased if the average of the uplink state values is larger than a predetermined first threshold. However, the video encoding bit rate is decreased if the average of the uplink state values is less than a predetermined second threshold. | 04-16-2009 |
20090153668 | SYSTEM AND METHOD FOR REAL-TIME VIDEO QUALITY ASSESSMENT BASED ON TRANSMISSION PROPERTIES - A system and method for video quality assessment includes utilizing codec auxiliary information related to the encoding and decoding process to enhance performance of picture quality assessment. In a video transmission system, video quality assessment can be accurately performed in real time with reduced computational load upon the client. In particular, the server performs first picture quality assessment and sends the assessment result to the client, and the client performs second picture quality assessment only when a transmission error occurs to reduce the computational load on the client. | 06-18-2009 |
20100232292 | METHOD FOR VARIABLY CONTROLLING BIT RATE OF VIDEO DATA THROUGH END-TO-END CHANNEL STATUS SENSING IN A WIBRO NETWORK - A method for variably controlling a bit rate of video data through end-to-end channel status sensing in a Wireless Broadband (WiBro) network is provided. The method includes classifying wireless channel statuses of a transmission side and a reception side into normal and abnormal statuses during video data transmission; variably controlling and determining an encoding bit rate of a transmission side's encoder according to the classification result; and comparing the determined encoding bit rate with a Down Link Modulation & Coding Selection Level (DL MCS Level) which is a parameter of the reception side, so as to vary a final encoding bit rate of the transmission side. | 09-16-2010 |
20110014544 | PROTON EXCHANGE POLYMER MEMBRANE USING SURFACE TREATMENT TECHNIQUE BASED ON DIRECT FLUORINATION, MEMBRANE-ELECTRODE ASSEMBLY, AND FUEL CELL COMPRISING THE SAME - A proton exchange polymer membrane whose surface is treated by direct fluorination using a fluorine gas, a membrane-electrode assembly, and a fuel cell comprising the same are provided. The proton exchange polymer membrane of the present invention exhibits improved proton conductivity, high dimensional stability, and decreased methanol permeability through introducing hydrophobic fluorine having high electronegativity to the surface of the polymer membrane. Therefore, the proton exchange polymer membrane with excellent electrochemical properties of the present invention can be preferably utilized as polymer electrolyte membrane for fuel cell, generating electric energy from chemical energy of fuels. | 01-20-2011 |
20130145896 | CONTROL KNOB FOR VEHICLE - A control knob for a vehicle has an improved outward appearance by forming a boundary line between two different materials in a portion that is not visible and preventing abrupt differences in color due to light refraction. The control knob is produced by dual injection molding of two different materials, is installed on one end of a shift lever, and functions as a handgrip. The control knob includes an portion of opaque and transparent materials, an overlapping portion opaque and transparent materials, and a coated portion formed of paint applied to portions of the transparent portion that do not overlap with the opaque portion. A boundary surface between the opaque and transparent portions is such that a refractive index of light passing through the transparent portion from the overlapping portion is close to a refractive index of light passing through the transparent portion from the coated portion. | 06-13-2013 |
20140076098 | CONTROL KNOB FOR VEHICLE - A control knob for a vehicle has an improved outward appearance by forming a boundary line between two different materials in a portion that is not visible and preventing abrupt differences in color due to light refraction. The control knob is produced by dual injection molding of two different materials, is installed on one end of a shift lever, and functions as a handgrip. The control knob includes an portion of opaque and transparent materials, an overlapping portion opaque and transparent materials, and a coated portion formed of paint applied to portions of the transparent portion that do not overlap with the opaque portion. A boundary surface between the opaque and transparent portions is such that a refractive index of light passing through the transparent portion from the overlapping portion is close to a refractive index of light passing through the transparent portion from the coated portion. | 03-20-2014 |
20140125397 | LEVEL CONVERTER FOR CONTROLLING SWITCH - Provided is a power amplifier using a differential structure. The power amplifier includes: first and second transistors whose first terminals are each connected to a first power supply source supplying a first voltage and into which signals having the same size and opposite polarities are input; third and fourth transistors whose first terminals are respectively connected to the first terminals of the first and second transistors; and a fifth transistor whose first terminal is connected to second terminals of the third and fourth transistors and controlling oscillation of the third or fourth transistor. | 05-08-2014 |
20140157942 | STROKE SENSOR FOR BRAKE PEDAL DEVICE - A sensor, in particular a stroke sensor, for a brake pedal device is provided that prevents distortion of the pedal arm from affecting the reliability of the output rotational values. In particular, the sensor is mount on one side of a frame coaxially with a hinged shaft via bracket. A sensor lever is then connected to a rotational shaft of the sensor on one end thereof, and a pin arm is connected to the hinged shaft on one end of the pin arm. Additionally, one side of a sensor pin is connected to another end of the sensor lever and another side of the sensor pin is connected to another end of the pin arm. As a result, distortion to the pedal arm does not affect the values propagated by the sensor. | 06-12-2014 |
20140183013 | SWITCH APPARATUS OF VEHICLE - Disclosed is a switch apparatus of a vehicle that includes a switch body that is connected to a connector of an electronic apparatus and includes a relay board disposed in an inner space thereof. The apparatus further includes a coupling portion disposed on a bottom of the switch body, formed by a conductor, and coupled to a fixation bracket. Additionally, an earth member includes a base formed by the conductor and is disposed in a lower part of the inner space of the switch body, and coupled on the top of the coupling portion and a clamping bar respectively extended upward at both sides of the base and coupled with an earth terminal formed on the bottom of the relay board. | 07-03-2014 |
20140232466 | LINEAR AMPLIFIER AND MULTISTAGE LINEAR AMPLIFIER - Disclosed is a linear amplifier which includes: a common source transistor with the gate connected with an input node; a first common gate transistor connected with the common source transistor in a cascode type, with the drain connected with an output node; and a second common gate transistor connected in parallel with the first common gate transistor, with the gate connected with the input node and the drain connected with the output node. | 08-21-2014 |
20140253234 | DIFFERENTIAL POWER AMPLIFIER USING MODE INJECTION - Disclosed is a differential power amplifier using mode injection, which includes: a first transistor of which the gate receives a first signal and the source is connected to the ground; a second transistor of which the gate receives a second signal and the source is connected to the ground; a third transistor of which the source is connected to the source of the first transistor; a fourth transistor of which the source is connected to the source of the second transistor; a fifth transistor of which the source is connected with the drain of the first transistor and the drain is connected with a first output port and the drain of the third transistor; and a sixth transistor of which the source is connected with the drain of the second transistor and the drain is connected with a second output port and the drain of the fourth transistor. | 09-11-2014 |
20140331805 | GEARSHIFT ASSEMBLY - A gearshift assembly structure includes: a gearshift knob including a knob core that has a insertion hollow formed lengthwise; a locking member installed on the knob core to pivot, the locking member having a locking protrusion formed on the outer surface of the locking member; and a gearshift rod to be inserted into the insertion hollow of the knob core, the gearshift rod having a locking groove formed on the outer surface thereof, wherein at the position the gearshift rod is fully inserted into the insertion hollow of the knob core, the locking member is received in the locking groove by pivoting the locking member inward. | 11-13-2014 |
20140352475 | STRUCTURE FOR PREVENTING GEAR SHIFT LEVER FROM MOVING WHEN REAR-END COLLISION OCCURS - A structure prevents a gear shift lever from moving during a rear-end collision, and may include: a case mounted on the gear shift lever having a sliding groove; a lever having one end coupled to the case rotatable below the groove; a ball seated on the lever; a spring coupled to the lever so that elastic force is applied to raise the lever; a protruding portion mounted separate from the gear shift lever and positioned below another end of the lever, in which when the lever is rotated downward, an end of the lever is locked by the protruding portion blocking movement of the gear shift lever. When a rear-end collision occurs, the ball slides due to inertia rotating the lever downward to physically block the lever, thereby preventing a secondary accident by preventing the gear shift lever placed at an R-stage from unintentionally moving. | 12-04-2014 |
20150035374 | WIRELESS TRANSCEIVER CIRCUIT, WIRELESS POWER TRANSMISSION CIRCUIT, WIRELESS POWER RECEPTION CIRCUIT, AND WIRELESS POWER TRANSMISSION/RECEPTION SYSTEM INCLUDING THE SAME - A wireless power transmission/reception system includes a wireless power transmission circuit and a wireless power reception circuit. The wireless power transmission circuit includes an oscillator, a DC-AC converter that converts a direct current to an alternating current and is turned on/off in response to a control signal, a power transmission coil that transmits AC power, a signal reception coil, and a signal receiver that transfers the control signal to the DC-AC converter. The wireless power reception circuit includes a power reception coil, a rectifier that converts an alternating current to a direct current and is turned on or off in response to the control signal, an control signal generator that generates the control signal, a signal transmission coil, and a signal transmitter that transmits the control signal through the signal transmission coil. | 02-05-2015 |
20150040708 | APPARATUS FOR ACTUATING SHIFT LEVER FOR VEHICLE - An apparatus for actuating a shift lever for a vehicle may include a shift pattern unit that has two reference ranges in series at which the position of the shift lever is fixed and a passageway connecting the reference ranges for the shift lever to move, and a driving unit that provides the restoration force to the shift lever to selectively return the shift lever to one of the reference ranges when the shift lever is located on the passageway outside of the reference ranges. | 02-12-2015 |
20150054710 | ANTENNA FOR INTER-CHIP WIRELESS POWER TRANSMISSION - Disclosed is an antenna for inter-chip wireless power transmission in a 3D-wireless chip package, wherein the 3D-wireless chip package includes: a first chip transmitting AC power through a transmitting antenna; and a plurality of second chips sequentially stacked on or under the first chip and receiving the AC power from the first chip through receiving antennas, respectively, and the receiving antennas are individually formed on the second chips, respectively, and positioned without vertically overlapping each other over or under the transmitting antenna. | 02-26-2015 |
20150101439 | APPARATUS FOR OPERATING A SHIFT LEVER FOR A VEHICLE - An apparatus for operating a shift lever for a vehicle includes: a shift lever pattern part that includes a plurality of reference ranges in which a position of the shift lever is fixed, a parking range, and a shift lever moving path along which the reference ranges and the parking range are connected to one another; and a driving part that applies returning force to the shift lever so as to return the shift lever to the reference ranges if the shift lever deviates from the reference ranges and is located in the shift lever moving path. | 04-16-2015 |
20150135878 | SHIFTING APPARATUS FOR VEHICLE - A shifting apparatus for a vehicle may include a lever position guide that is provided inside a gear lever box at which a gear lever is located, and has a reference position and multiple gear positions connected to the reference position, an elastic part engaged to the gear lever and the gear lever box and configured to return the gear lever to the reference position when the gear lever deviates from the reference position and thus is located at any one of the multiple gear positions, and a controller that shifts a gear range according to a preset shifting order when the gear lever moves between the reference position and the multiple gear positions, and shifts the gear range to a preset gear range when the gear lever is located at any one of the multiple gear positions for a longer time than a setting time. | 05-21-2015 |
20150135879 | STRUCTURE FOR MOUNTING PLANTABLE SHIFT LEVER ONTO BRACKET - A structure for mounting a plantable shift lever onto a bracket may include an extending part that protrudes from a front end of the plantable shift lever to extend forward, a dented part formed by denting a front end of the bracket forward to receive the extending part, a first penetrating hole formed to penetrate a rear end of the plantable shift lever in a left and right direction, a second penetrating hole formed to penetrate a rear end of the bracket in the left and right direction and positioned to correspond to the first penetrating hole, and a pin to be inserted into the first penetrating hole and the second penetrating hole to fix the plantable shift lever to the bracket. The plantable shift lever may be coupled to the bracket by inserting the extending part into the dented part and inserting the pin into the first penetrating hole and the second penetrating hole. | 05-21-2015 |
20150176709 | METHOD OF CONTROLLING PARKING CONTROL DEVICE OF TRANSMISSION - A method of controlling a parking control device of a transmission may include a) inputting data about a state of a vehicle, b) determining, based on the data input at a step of the a), whether a current situation is a first situation in which an actuator of the parking control device of the transmission is to be promptly controlled, a second situation in which noise is controlled to be minimized, or a third situation which is a normal situation, and c) controlling a Pulse Width Modulation (PWM) duty cycle required to control the actuator to different values depending on the first, second, and situations determined at a step of the b), thus driving the actuator. | 06-25-2015 |
20150362068 | Device and Method for Driving Shift Lever - Disclosed are device and method for driving a shift lever. The device may include a control unit that sets a travel distance of the shift lever when the shift lever is manipulated to a predetermined shift stage to be different than a reference travel distance of the shift lever, which is a travel distance of the shift lever when the shift lever is manipulated to shift stages other than the predetermined shift stage. The device may further include a driving unit which restricts a travel of the shift lever or moves the shift lever depending on a setting of the control unit. | 12-17-2015 |
20160049994 | WIRELESS CHIP FOR CHIP-TO-CHIP WIRELESS TRANSFER - Provided is a wireless chip for chip-to-chip wireless transfer. A wireless chip for chip-to-chip wireless transfer according to the present invention includes: an antenna used as a wireless transfer path of data or power; a circuit unit providing information about whether there is input/output data; a mode control unit connected with the circuit unit and outputting a first or second level signal in accordance with whether there is input/output data; a data communication unit activated and inputting/outputting the data between the circuit unit and the antenna, only when the first level signal is inputted from the mode control unit; and a power relay unit activated and relays the power between the circuit unit and the antenna, only when the second level signal is inputted from the mode control unit. | 02-18-2016 |
20160065153 | INVERTER TYPE POWER AMPLIFIER - The present disclosure relates to an inverter type power amplifier. An exemplary embodiment of the present disclosure provides an inverter type power amplifier including: a first transistor including a gate to which an AC type of input signal is applied through an input port, a first terminal connected a power source voltage, and a second terminal connected to an output port; a second transistor including a gate through which the input signal is applied thereto, a first terminal connected to a ground, and a second terminal connected to the output port; a feedback resistor including a first terminal connected to the input port and a second terminal connected to the output port; and an AC blocking block including a first terminal connected to the output port and a second terminal connected to a DC output port. | 03-03-2016 |
20160116058 | APPARATUS AND METHOD FOR SHIFT PERCEPTION - An apparatus for shift perception includes a transmission and a vehicle shift controller configured to perform shifting of the transmission. An electronic shift operator is configured to generate shift stage information by checking a state of a present shift stage or shift planning stage information by a shifting operation of a driver. An electronic braille module is configured to output the shift stage information or the shift planning stage information in braille information. | 04-28-2016 |
20160131246 | TRANSMISSION DEVICE FOR VEHICLE - A transmission device for a vehicle includes an interface body having a lever module which includes a shift knob and an electric device. An upper portion of a main body is replaceably assembled with the interface body. The interface body and the main body are separately provided and assembled each other to be used as the common shift lever system and to be applied to all kinds of vehicles even to a new car, thereby saving the development cost. | 05-12-2016 |