Patent application number | Description | Published |
20150270502 | AMINE DERIVATIVE, ORGANIC LUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE AMINE DERIVATIVE OR THE ORGANIC LUMINESCENT MATERIAL - An amine derivative represented by the following General Formula (1) is provided. | 09-24-2015 |
20150376114 | MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME - A compound for an organic electroluminescent device and an organic electroluminescent device, the compound being represented by the following Formula 1: | 12-31-2015 |
20150380656 | MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - A compound for an organic electroluminescence device and an organic electroluminescence device, the compound being represented by the following Chemical Formula 1: | 12-31-2015 |
20160043316 | MONOAMINE MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME - A compound for an organic electroluminescence device and an organic electroluminescence device, the compound being represented by the following Chemical Formula 1: | 02-11-2016 |
20160072091 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device includes an anode, an emission layer, an anode-side hole transport layer on the anode and the emission layer, the anode-side hole transport layer including an anode-side hole transport material and the anode-side hole transport layer being doped with an electron accepting material, an intermediate hole transport material layer between the anode-side hole transport layer and the emission layer, the intermediate hole transport layer including an intermediate hole transport material, and an emission layer-side hole transport material between the intermediate hole transport material layer and the emission layer and adjacent to the emission layer, the emission layer-side hole transport material layer including an emission layer-side hole transport material represented by the following General Formula (1): | 03-10-2016 |
20160099419 | ORGANIC ELECTROLUMINESCENT MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME - A material for an organic electroluminescent device according to embodiments of the present disclosure is represented by the following Formula (1). The material for an organic electroluminescent device may have high emission efficiency and the organic electroluminescent device including the material may have improved characteristics. | 04-07-2016 |
20160118596 | MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME - A material for an organic electroluminescent device having high emission efficiency and long life, and an organic electroluminescent device including the same. The material for an organic electroluminescent device may be represented by Formula (1). | 04-28-2016 |
20160118597 | MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE INCLUDING THE SAME - A material for an organic electroluminescent device having high emission efficiency and long life and an organic electroluminescent device including the same. The material for an organic electroluminescent device is represented by the following Formula 5. | 04-28-2016 |
Patent application number | Description | Published |
20080317469 | PASSIVE OPTICAL NETWORK SYSTEM AND RANGING SYSTEM THEREOF - A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part. | 12-25-2008 |
20090034973 | PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINAL - In order to be able to moderate the inclination of the PON burst reception characteristics and to improve the FEC effect, a first offset is used in a ranging window field, and a second offset, which is lower than the first offset value, is used in a burst data field other than the ranging window field. | 02-05-2009 |
20090052896 | PASSIVE OPTICAL NETWORK SYSTEM AND RANGING SYSTEM THEREOF - A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part. | 02-26-2009 |
20090052897 | PASSIVE OPTICAL NETWORK SYSTEM AND RANGING SYSTEM THEREOF - A station-side communication device connected to subscriber-side communication devices via an optical combining device; sending, to the subscriber-side communication devices, a distance measurement request signal; computing transmission delay times of optical signals from the individual subscriber-side communication devices by receiving distance measurement signals, and including: a threshold control part identifying the level of distance measurement signals; a signal detection part detecting breaks in the distance measurement signals from the threshold control part; a transmission granting part determining the timing at which transmission of optical signals is granted, and a reset timing generation part that, there is notification of detection of a break in the distance measurement signal from the signal detection part while it is being notified that distance measurement is carried out to and from the subscriber-side communication devices from the transmission granting part, sends a reset signal indicating that the voltage level is reset to the threshold control part. | 02-26-2009 |
20110293274 | PASSIVE OPTICAL NETWORK SYSTEM AND OPTICAL LINE TERMINAL - In order to be able to moderate the inclination of the PON burst reception characteristics and to improve the FEC effect, a first offset is used in a ranging window field, and a second offset, which is lower than the first offset value, is used in a burst data field other than the ranging window field. | 12-01-2011 |
Patent application number | Description | Published |
20090291661 | NOISE CANCELLATION CIRCUIT AND AMPLIFIER WITH NOISE CANCELLATION CIRCUIT - A noise cancellation circuit, which reduces noise in an output signal of an amplifier having an input resistance, a feedback resistance, and an operational amplifier, has: a first mixer circuit, which input an input signal across a first input terminal and a second input terminal of the operational amplifier, and performs frequency conversion of the input signal according to a first frequency signal; a noise cancellation amplifier, which amplifies an output signal of the first mixer circuit; a second mixer circuit, which performs frequency conversion of an output signal of the noise cancellation amplifier according to the first frequency signal; and a signal supply circuit, which supplies an output signal of the second mixer circuit to the first input terminal of the operational amplifier via an output resistance. | 11-26-2009 |
20110043277 | QUADRATURE MODULATION DEMODULATION CIRCUIT - A quadrature demodulation circuit includes: first to fourth mixers to receive a modulation signal; a phase shifter to supply to the first and third mixers a first local frequency signal, to supply to the second mixer a second local frequency signal having a designated phase difference relative to the first local frequency signal, and to supply to the fourth mixer a third local frequency signal that is an inverse in phase to the second local frequency signal; a first adder to add a signal output from the first mixer and a signal output from the second mixer and to output a first demodulation signal; and a second adder to add a signal output from the third mixer and a signal output from the fourth mixer and to output a second demodulation signal. | 02-24-2011 |
20110241753 | MIXER CIRCUIT AND METHOD FOR ADJUSTING COMMON VOLTAGE OF MIXER CIRCUIT - A mixer circuit includes: a mixer circuit including a first transistor pair to output a first differential input signal and a second transistor pair to output a second differential input signal by inversing the first differential signal; a local signal supply circuit to supply a pair of local signals to gates of the first transistor pair and the second transistor pair; an operational amplifier including an input pair coupled to an output pair of the mixer circuit and an output pair coupled to the input pair via feedback resistors, the operational amplifier to amplify the first differential input signal and output a differential output signal; a common mode feedback circuit to control a center voltage of the differential output signal so that the center voltage maintains a common voltage; and a common voltage generator circuit to generate the common voltage according to an amplitude of the local signal. | 10-06-2011 |
20160036383 | CRYSTAL OSCILLATION CIRCUIT - A crystal oscillation circuit is provided with a crystal oscillator, an inverter unit coupled in parallel with the crystal oscillator and including a plurality of inverters, a current supply unit that supplies current to at least a first inverter of the plurality of inverters a signal converter that supplies current to at least a last inverter of the plurality of inverters and outputs a voltage to an external circuit, and a current controller that makes the current supply unit provide current corresponding to a voltage level of the output voltage of the signal converter. The crystal oscillation circuit is capable of reducing power consumption. | 02-04-2016 |