Abstract:
An apparatus for processing a register window overflow and underflow includes register windows each configured to include local registers and incoming registers, dedicated internal memories configured to store contents of the local registers and the incoming registers for each word, dedicated data buses configured to connect the local registers and the incoming registers and the respective dedicated internal memories, a memory word counter configured to perform counting in order to determine whether or not there is a storage space of a word unit in the dedicated internal memories, and a logic block configured to control an operation of the dedicated data buses when one of a window overflow and a window underflow is generated based on the count value of the memory word counter.
Abstract:
An output enable signal generation circuit of a semiconductor memory includes: a latency signal generation unit configured to generate a latency signal for designating activation timing of a data output enable signal in response to a read signal and a CAS latency signal; and a data output enable signal generation unit configured to control the activation timing and deactivation timing of the data output enable signal in response to the latency signal and a signal generated by shifting the latency signal based on a burst length (BL).
Abstract:
Provided is a transceiver using a millimeter-wave (MM-wave). The transceiver determines output power of a transmitting signal according to a receiving signal of a receiving end in the same device so that a possible loss value occurring in the air may be predicted. By doing so, performance of a whole link budget may be enhanced, and the transmitting signal may be rapidly controlled.
Abstract:
Disclosed is an apparatus for measuring sizes of a human body, such as the length of an arm, the size of a waist and the width of a shoulder, in the state that a person does not take off its clothes, using millimeter waves. The apparatus includes a plurality of millimeter-wave transmission/reception units, a rotation unit and a digital signal processing unit. The plurality of millimeter-wave transmission/reception units are arranged in a circular shape around an object to be measured, transmit a millimeter wave to the object to be measured, and receive a signal reflected or scattered by the object to be measured. The rotation unit rotates a circular structure in which the plurality of millimeter-wave transmission/reception units are arranged. The digital signal processing unit analyzes the object to be measured using size and phase information of the signal received by the plurality of millimeter-wave transmission/reception units.
Abstract:
A system for reducing a radiation field in a wireless power transmission system includes a signal generation unit, a power amplification unit, a signal detection unit, a standing wave ratio (SWR) calculation unit and a control unit. The signal generation unit receives power and generates a signal for wireless power transmission. The power amplification unit amplifies the wireless signal generated by the signal generation unit. The signal detection unit detects a radiation signal generated by the magnetic resonator with respect to output power of the power amplification unit. The SWR calculation unit calculates an SWR using the detected radiation signal. The control unit selects a frequency having a lowest SWR based on the SWR calculated by the SWR calculation unit, and controls the signal generation unit to generate the signal for the wireless power transmission using the selected frequency.
Abstract:
Disclosed is an apparatus for wirelessly transmitting and receiving energy and data including: a signal generator generating a first frequency signal for power transmission; a first matching circuit matching input/output impedance upon receiving the first frequency signal generated by the signal generator; an oscillator outputting a second frequency signal, a carrier frequency, by using the first frequency signal, generated by the signal generator, as a reference frequency; a mixer modulating a data signal output from a communication module by using the second frequency signal; a second matching circuit matching input/output impedance upon receiving a modulated signal by using the second frequency signal; a resonator resonating an output signal from the first matching circuit to a reception side apparatus; and a radiator radiating an output signal from the second matching circuit to the reception side apparatus.
Abstract:
Disclosed is a method for performing a 3D image reconstruction at a high speed and high resolution, regardless of a measurement distance. Specifically, a weight for image reconstruction is previously set, and a 3D image reconstruction algorithm is performed at a high speed, without reducing a resolution, by a parallel processing for image reconstruction, a computation of a partial region using a database based on a measurement result, and a generation of a variable pulse waveform.
Abstract:
Provided are a mixer and a transceiver having the mixer. The mixer includes: an local oscillation (LO) differential signal generator converting an input LO signal into a differential signal; and a mixing unit receiving the LO differential signal as a first input and a first signal having a first frequency as a second input and performing differential amplification on the LO differential signal and the first signal to output a second signal having a second frequency.
Abstract:
Disclosed are an arithmetic apparatus including MAC calculation, and a DSP structure and a filtering method using the same. The arithmetic apparatus includes: first and second registers storing one or more pieces of n-bit data (n is a natural number); a third register storing one or more pieces of 2n bit data; a multiplier having a first input terminal connected to the first register, a second input terminal connected to the second and third registers, and multiplying an input value of the first input terminal and that of the second input terminal; and an arithmetic-logic unit (ALU) having a first input terminal connected to an output terminal of the multiplier and a second input terminal feedback-connected to an output terminal, adding an input value of the first terminal and that of the second terminal, and having the output terminal connected to the third register.
Abstract:
Disclosed are a reflect-array lens (or a planar lens) and a solar cell module having the same. The reflect-array lens for a solar cell includes: a planar dielectric substrate having a first permittivity, wherein a plurality of recesses are formed on one surface of the planar dielectric substrate and filled with a dielectric having a second permittivity different from the first permittivity. The reflect-array lens can be easily fabricated and has an excellent concentration degree, and the solar cell module having the reflect-array lens has improved photoelectric conversion efficiency.