Abstract: A real-time estimation of 3D moments of lower-limb joints using a robotic multi-axis training system with a 6-axis force/torque (F/T) sensors and a 6-DOF goniometer is described. A joint moment such as the knee abduction moment (KAM) can be determined in real-time without using sophisticated optoelectronic motion tracking system. The system also does not require computation of the COP location. The knee adduction moment or any other lower-limb 3D joint moments can be determined conveniently during stepping movement on the training system for real-time biofeedback training on controlling the targeted joint moment(s). The 6-DOF goniometer is convenient to use with other analog signals including the 6-axis F/T and locomotion variables.

Abstract: A misinput avoidance method of a mobile terminal may be implemented to prevent a misinput caused by contacting unintended keys around the target key. A misinput avoidance method of a mobile terminal according to the present invention includes detecting inputs of a plurality of keys and discriminating a target key from other keys. The method also includes extracting keys around the target key and registering the keys around the target keys as neighbor keys. The method further includes processing the input of the target key while blocking the inputs of the neighbor keys. The method further includes releasing, when the target key is released, the blocking of the inputs of the neighbor keys.

Abstract: A display and a method for driving a backlight thereof are provided. The display generates a control voltage and supplies the generated control voltage to a backlight driving unit in a step-wise manner. Accordingly, malfunctions of the backlight due to incomplete activation during initial driving, can be avoided.

Abstract: A method of processing an input signal of a portable device is provided, including collecting an input signal generated from at least one of an input unit and a touch screen; generating a preset repetitive input signal when the collected input signal corresponds to a preset condition input signal; and using an application that is currently activated based on the repetitive input signal.

Abstract: A display apparatus and a method thereof are provided. The display apparatus includes a first controller which displays an image corresponding to a video signal, a main power supply unit, a second controller which determines whether to interrupt power supply from the main power supply unit, and a secondary power supply unit. Accordingly, power consumption in the display apparatus is reduced.

Abstract: A low-pass filtering circuit and method are disclosed. The circuit includes a low-pass filter with a capacitor, and a multiplier configured to multiply the capacitance of the capacitor by feeding-back a high-frequency signal apparent in an output signal of the low-pass filter to the capacitor.

Abstract: A display and a method for driving a backlight thereof are provided. The display generates a control voltage and supplies the generated control voltage to a backlight driving unit in a step-wise manner. Accordingly, malfunctions of the backlight due to incomplete activation during initial driving, can be avoided.

Abstract: A low-pass filtering circuit and method are disclosed. The circuit includes a low-pass filter with a capacitor, and a multiplier configured to multiply the capacitance of the capacitor by feeding-back a high-frequency signal apparent in an output signal of the low-pass filter to the capacitor.

Abstract: A DC offset canceling apparatus includes a main amplifier, a replica amplifier, a switch, and a storage unit. The replica amplifier has substantially the same structure as the main amplifier, receives an input signal having the same sign as that of a signal input to the main amplifier, and has an output connected to main amplifier with an opposite sign. The switch switches a signal input to the replica amplifier in response to a control signal. The storage unit is connected to an input terminal of the replica amplifier to maintain a DC value for a predetermined period of time when the switch is open.

Abstract: An image display apparatus including: a memory unit which stores at least one predetermined pixel value range and a representative value corresponding to the predetermined pixel value range; an image processing unit which receives an image signal including a plurality of pixels, digitizes the received image signal if the received image signal is an analog signal, substitutes the representative value for a pixel value of one of the digitized image signal and the received image signal if the pixel value of the one of the digitized image signal and the received image signal is included within the predetermined pixel value range, and generates a substituted pixel value which corresponds to the substituted representative value; and a display unit which displays an image based on the substituted pixel value generated by the image processing unit.

Abstract: An input impedance matching circuit for a low noise amplifier includes a source pad, a gate pad, an input transistor, a source degeneration inductor and a matching capacitor. The gate pad receives an input signal and the input transistor amplifies the input signal transmitted from the gate pad. The source degeneration inductor electrically coupled to an external ground voltage is adapted for input impedance matching of the low noise amplifier. The source pad is coupled to a source electrode of the input transistor and the matching capacitor is formed between the gate pad and the source pad extending the source pad to be disposed under the gate pad. Accordingly, impedance matching of the low noise amplifier may be facilitated and the gain and noise figure of the low noise amplifier may be improved.

Abstract: A DC offset canceling apparatus includes a main amplifier, a replica amplifier, a switch, and a storage unit. The replica amplifier has substantially the same structure as the main amplifier, receives an input signal having the same sign as that of a signal input to the main amplifier, and has an output connected to main amplifier with an opposite sign. The switch switches a signal input to the replica amplifier in response to a control signal. The storage unit is connected to an input terminal of the replica amplifier to maintain a DC value for a predetermined period of time when the switch is open.

Abstract: An input impedance matching circuit for a low noise amplifier includes a source pad, a gate pad, an input transistor, a source degeneration inductor and a matching capacitor. The gate pad receives an input signal and the input transistor amplifies the input signal transmitted from the gate pad. The source degeneration inductor electrically coupled to an external ground voltage is adapted for input impedance matching of the low noise amplifier. The source pad is coupled to a source electrode of the input transistor and the matching capacitor is formed between the gate pad and the source pad extending the source pad to be disposed under the gate pad. Accordingly, impedance matching of the low noise amplifier may be facilitated and the gain and noise figure of the low noise amplifier may be improved.

Abstract: A linear amplifier using a low frequency 2nd intermodulation feed-forwarding method to offset the 3rd intermodulation component of a fundamental signal is provided. This linear amplifier includes a transistor for amplifying the power of the fundamental signal, a first filter unit, one end of which is connected to the gate of the transistor, for filtering a 2nd order intermodulation signal from the fundamental signal, a low frequency amplifier connected to the other end of the first filter unit, for amplifying the 2nd order intermodulation signal with a predetermined voltage gain, and a second filter unit connected in series between the output port of the low frequency amplifier and the drain output port of the transistor, for filtering the amplified 2nd intermodulation signal and feeding the same to the output port of the transistor.