Abstract:
The present invention relates to novel mouse CIA protein and CIA gene having anti-apoptotic activity isolated by yeast 2-hybrid screening which inhibit apoptosis mediated by caspase activated-DNase, CAD and apoptosis signal-regulating kinase 1, ASK1. Since mouse CIA protein and CIA gene of the present invention inhibit apoptotic cell death and DNA fragmentation by selectively interacting with CAD and ASK1 as a negative regulator, CIA protein is useful for an effective inhibitor of CAD and ASK1 protein or a cure of various diseases related to cell death such as disease of degenerative cranial nerve system, apoplexy, cancer, immune disorders or inflammation, and CIA gene is effective for a gene theraphy of the same diseases.
Abstract:
DC offset is compensated for in an analog front end (AFE) circuit having an amplifier and an analog-to-digital converter (ADC). First data processed by the ADC are low pass filtered and estimated DC offset data of the ADC are obtained in ADC DC offset calibration mode. Second data processed by the ADC and the amplifier are low pass filtered, and a first DC offset of the ADC are substantially removed from the filtered second data by subtracting the estimated DC offset data from the filtered second data, thereby obtaining second compensated DC offset data of the amplifier in an amplifier DC offset calibration mode. The second compensated DC offset data is iteratively improved and first compensated DC offset data of the amplifier are obtained. The first compensated DC offset data are transformed into an analog signal, and the analog signal is subtracted from an input signal of the amplifier during operation mode.
Abstract:
Provided are a communication device having a built-in camera and a system and method of detecting a communication device having a built-in camera. In the system, a communication device can transmit camera existence data or particular identification data thereof, and in response thereto, a detection device can suspend a camera function of the communication device when a user with the communication device enters a security zone. In addition, the detection device can recover the camera function when the user with the communication device exits the security zone.
Abstract:
Disclosed is an anticorrosion paint for preventing steel materials from corrosion by using polyaniline as an anticorrosion pigment. The anticorrosion paint has an excellent anticorrosion effect, long persistence of the anticorrosion effect, high durability and superior coating property controlling the anticorrosion effect, without using metal causing environmental pollution as an anticorrosion pigment. Especially, in the anticorrosion paint, the top coat paint for improving the protection of the primer coat paint and the anticorrosion effect. The top coat paint includes 40 to 89 wt % of matrix resin, 5 to 54 wt % of colored pigment, 1 to 50 wt % of dopants and 5 to 54 wt % of mixed solvents, and the primer coat paint includes 3 to 49 wt % of the polyaniline, 40 to 86 wt % of the matrix resin, 1 to 47 wt % of the dopants and 10 to 56 wt % of the mixed solvents. The anticorrosion paint plays a role in exerting persistently the excellent anticorrosion effect without causing environmental problem.
Abstract:
An improved mixing circuit includes a MESFET having an LO signal coupled to its gate through a charging capacitor and an RF signal coupled to its drain through a first bandpass filter. Electrons are pumped onto the charging capacitor to bias the gate of the MESFET. The MESFET drain is coupled to a second bandpass filter which passes a signal at the mixed frequency.
Abstract:
A multi-channel audio signal converting device using a time-varying digital filter, an electronic system including the same, and a method of converting an audio signal using the time-varying digital filter are provided. The multi-channel audio signal converting device includes a first signal channel and a second signal channel configured to perform analog-to-digital conversion or digital-to-analog conversion using a first clock signal; and a first time-varying filter configured to synchronize a digital audio signal synchronized with a second clock signal different from the first clock signal with the first clock signal and to input the digital audio signal to the second signal channel when digital-to-analog conversion is performed or to synchronize an output signal of the second signal channel with the second clock signal when analog-to-digital conversion is performed.
Abstract:
A mobile terminal includes a front body, a rear body, and a slide module connecting the front body to the rear body such that the front body is slidable with respect to the rear body, the slide module including a first slide member fixed to a front surface of the rear body and having a rail unit at both sides of the rear body, the rail unit having a specific length corresponding to a slide stroke of the front body; and a second slide member fixed to a rear surface of the front body and having a moving guide constrained to the rail unit at both sides of the rear body and slidably moved along the rail unit, in which the moving guide protrudes toward the rear body in order to receive the rail unit and cover the rail unit.
Abstract:
The present invention relates to a black organic light-emitting diode that implements a resonant absorbing configuration, the black organic light-emitting diode comprising: a glass substrate; a first metal layer formed on the glass substrate; a first electrode formed on the first metal layer; an organic light-emitting layer formed on the first electrode; a second electrode formed on the organic light-emitting layer, opposite the first electrode; a first interlayer formed on the second electrode; a second metal layer formed on the first interlayer; and a second interlayer formed on the second metal layer, wherein by controlling the thickness of the first interlayer and the second interlayer, external light reflected by the first metal layer and the second electrode destructively interferes with light reflected by the second metal layer.
Abstract:
Apparatus and methods for detecting a lock in a phase-locked loop (PLL) are disclosed. In one aspect, a lock detect component includes a reference multiplier and a lock detect. The reference multiplier can receive a reference signal, a divider signal, and a voltage-controlled oscillator (VCO) output generated by a VCO in a PLL from which the divider signal is generated. The reference multiplier can also generate a multiplied reference signal using the reference signal and the VCO output. The multiplied reference signal can have a frequency that is an integer multiple of a frequency of the reference signal. The lock detect can detect a phase lock of the reference signal and the divider signal based at least in part on comparing a signal generated from a delayed reference signal and a signal generated from a delayed divider signal for a predetermined period of time.
Abstract:
A half-bridge three-level pulse width modulation (PWM) amplifier includes a prescaling unit, a PWM generator configured to convert the input signal to a three-level PWM signal having a first level, a second level and a reference level and an output stage. The prescaling unit scales an input signal according to at least one gain value to provide a scaled signal. The PWM generator varies the width of pulses having the first level and varies the width of pulses having a second level based on the scaled signal. The output stage drives an output node to a level of a first power supply voltage, a second power supply voltage or a third power supply voltage based on the three-level PWM signal. The output node is connected to a load. The magnitude of the at least one gain value compensates for variations of power supply voltages.