Abstract:
3D 바코드를이용한 3D 프린팅출력물에대한저작권보호방법이제공된다. 본발명의실시예에따른 3D 인쇄방법은, 3D 구조물내에삽입할특정정보가수록된 3D 바코드를생성하고, 3D 구조물을인쇄하되 3D 구조물내부에는 3D 바코드를인쇄한다. 이에의해, 3D 프린터로 3D 출력물을인쇄할때 3D 출력물의내부에저작권정보가수록된 3D 바코드를함께인쇄하므로, 정보위조/변조가실질적으로불가능해진다.
Abstract:
PURPOSE: A low complexity variable order short-term predictor for forming an MPEG-4 ALS VLSI is provided to reduce complexity when MPEG-4 ALS hardware is formed. CONSTITUTION: A pre-determining block(110) generates a modified prediction order in response to an inputted prediction order value. A loop controller(120) determines the numbers of repetition and flag signals in response to the modified prediction order value. An FIR(Finite Impulse Response) filter(160) receives a sampled signal. A pipeline stall is applied to the FIR filter according to radix-2 algorithm. The FIR filter filters the sampled signal. An output block(180) adds a determined result of the loop controller to a filtered output result of the FIR filter.
Abstract:
PURPOSE: A wireless power monitoring receptacle and a power control method thereof are provided to prevent malfunction of a receptacle through automatic battery charge control and power consumption control according to the residual power of battery. CONSTITUTION: An AC input unit(110) receives AC power source from a connected receptacle. A relay switch(120) switches the electrical contact between the AC input unit and an AC output unit(130) and a charge unit(140). The AC output unit outputs the AC power source applied from the AC input unit through the relay switch to a connected electronic device. The charge unit charges a battery(150) with the AC power source applied through the relay switch from the AC input unit. The battery supplies power to a wireless communication module(160) which is connected to an external control system, a control unit which measures applied power to obtain the power consumption of the electronic device, and a display unit(170).
Abstract:
PURPOSE: A pitch estimating system using an interpolation method in a time-frequency mixing domain is provided to use the interpolation method when a time domain is mixed with a frequency domain. CONSTITUTION: A second autocorrelator(520) outputs an autocorrelated value of a frequency domain. A first interpolator interpolates an autocorrelated value of a time domain. A second interpolator interpolates the autocorrelated value of the frequency domain. A pitch estimator(540) applies a weighted value to the interpolated autocorrelated value of the time domain and the interpolated autocorrelated value of the frequency domain. The pitch estimator estimates a final pitch.