Abstract:
계산량을 줄이는 간소화된 승산기로 구현한 V-BLAST 장치 및 그 방법이 개시된다. 상기 이동 통신 수신기의 V-BLAST 장치는, 채널 정보 벡터를 수신하여 상기 채널 정보 벡터에 대한 의사 역행렬 계산시에 존재하는 자코비안 값 계산을 이용하여 의사 역행렬을 구성하는 출력 코팩터와 행렬식을 계산하여 출력하는 의사 역행렬 계산기; 상기 출력 코팩터의 각 행에서 자코비안 값 계산을 이용하여 NORM을 계산하고, 행별 NORM 값 중에서 최소값을 가지는 행을 나타내는 인덱스를 추출하여 출력하는 NORM 및 최소값 판정기; 상기 출력 코팩터로부터 상기 인덱스에 해당하는 행 벡터인 ZF 벡터를 선택하여 출력하는 ZF 벡터 선택기; 상기 채널 정보 벡터에서 상기 인덱스에 해당하는 열 벡터를 제거한 축소 행렬을 발생시켜 상기 채널 정보 벡터로서 재입력시키는 행렬 축소기; 및 수신 심볼과 상기 ZF 벡터의 승산에 자코비안 값 계산을 이용하여 제1 승산하고, 상기 제1 승산 결과를 상기 행렬식으로 나누어 그 결과를 출력하는 결정 통계 계산기를 구비하는 것을 특징으로 한다.
Abstract:
본 발명은 마이크로 컨트롤러 소프트 아이피에 내장 할 수 있는 롬 소프트 아이피(ROM Soft IP)의 생성 방법 및 이 방법을 실행시키는 프로그램을 기록한 기록체에 관한 것으로서, 특히 MPU 코어 IP에 내장 할 수 있도록 롬 소프트 IP를 생성함으로서 IP 설계자가 용이하게 롬 내장 MPU 소프트 IP를 설계 할 수 있을 뿐만 아니라 MPU 코어 IP의 사용자도 프로그래밍 된 크기와 동일한 롬 프로그램 데이터들을 넣을 수 있는 롬 소프트 IP를 생성할 수 있다.
Abstract:
본 발명의 직교 주파수 분할 다중 수신 장치는, 널 심볼 및 기준 심볼로 이루어진 동기 신호를 포함하는 전송 데이터 프레임 신호를 수신하는 직교 주파수 분할 다중 수신 장치에 있어서, 하나의 고속 푸리에 변환 연산기와, 고속 역 푸리에 변환 연산을 필요로 하는 주파수 또는 심볼 동기 회로를 구비하되, 하나의 고속 푸리에 변환 연산기로서 고속 푸리에 연산 처리 및 고속 역 푸리에 연산 처리를 선택적으로 수행하게 함으로써 주파수 또는 심볼 동기 회로에서 필요로 하는 IFFT 연산을 상기 FFT 연산기를 이용하여 수행하도록 하는 것을 특징으로 한다.
Abstract:
The present invention relates to an input and output port circuit. The input and output port circuit comprises a signal register for storing output signals, an input/output register at which an input/output control signal for determining an input/output direction is stored, a plurality of control registers, a power supply switch circuit for selectively supplying a low voltage or a high voltage depending on a power mode control signal, a signal direction control circuit for determining the direction of the signal depending on a value of the signal register and a value of the input/output register, an output control circuit driven depending on the value of the control register and an output of the signal direction control circuit, and an output driving circuit for outputting the low voltage, the high voltage or the ground value depending on an output of the signal direction control circuit and an output of the output control circuit. The high voltage and the low voltage can be simultaneously driven using only a single output driving circuit and the single output driving circuit is constructed in multiple stages and is selectively driven by the output control register. Therefore, the power consumption can be saved.
Abstract:
The present invention reduces complexity of computation as about 40% comparing to the conventional depth first tree search method. A method for searching an algebraic codebook in algebraic code excited linear prediction (ACELP) vocoding using a depth first tree method, includes the steps of: a) searching branches of predetermined levels to predict a branch in which optimum pulse is located; b) choosing a predetermined number of branches according to the search result of the step a) and removing residual branches; and c) searching the chosen branches and choosing optimum algebraic code.
Abstract:
PURPOSE: A V-BLAST(Vertical-Bell Laboratories Layered Space-Time) system having a simple inverse matrix operation structure is provided to operate a necessary cofactor by using three multiplying steps, and to multiply a minimal value by a receiving symbol to divide with a determinant, thereby reducing hardware for V-BLAST algorithm. CONSTITUTION: The first and second switches(202,204) input a matrix and a receiving symbol, and transmit the matrix and the receiving symbol. A pseudo inverse matrix calculator(206) inputs the matrix to operate a cofactor matrix and a determinant, and outputs the cofactor matrix and the determinant. A size and minimal value calculator(208) operates a minimal index value for the cofactor matrix. A matrix reducer calculator(212) inputs a new matrix to the first switch(202). A weighting vector selector(210) operates a row vector and a transposed matrix of the row vector. The first multiplier(214) multiplies the transposed matrix by the receiving symbol. A divider(215) inputs the determinant, and divides an output of the first multiplier(214) with the determinant. An inverse mapper(218) inputs an output from the divider(215), and outputs an estimated information value. The second multiplier(220) multiplies a column corresponding to a row that generates the minimal index value, outputs results. A subtractor(216) subtracts an output of the second multiplier(220) from the receiving symbol, and outputs a new receiving symbol.
Abstract:
PURPOSE: A device and a method for searching out an IP(Intellectual Property) function of a semiconductor are provided to perform the SOC(System On Chip) design quickly or in a proper time by automatically searching out the function from the semiconductor IP receiving for designing the SOC. CONSTITUTION: A design data input part(100) receives a data sheet and an HDL(Hypertext Delivery Language) code of the semiconductor IP, and corrects an error if a non-identical part is searched out by comparing the data sheet and the HDL code with each format. A function searcher(120) matches a function sentence and a comment for the same function as a pair by searching out each sentence of the data sheet and comparing the sentence with the comment including a waveform extracted from the HDL code. A function sentence storage(140) and a function waveform storage(160) respectively store the function sentence and the waveform received from the function searcher. A function sentence display part(180) and a function waveform sentence display part(200) display the semiconductor IP function by including at least function sentence from the function sentence and the matched waveform.
Abstract:
PURPOSE: A method for generating a ROM soft IP(intellectual Property) embedded into an MPU(Micro Processor Unit) soft IP and a recording medium recording a program for executing the same are provided to simplify a circuit composition process of the MPU soft IP by generating as a form of a ROM component file while automatically converting a program ROM code into an electronic circuit design language. CONSTITUTION: A header file describing the initial information of the ROM soft IP, and a sentence describing a ROM address and instructions, a tail file describing termination information, and a bean file describing an activity of the ROM soft are written, and a HEX file for MUP program memory is selected(S1). The header file is copied to the bean file, a start address and the instruction are converted into the electronic circuit design language through the address and the instruction formed by an ASCII(American Standard Code for Information Interchange) text in the memory program HEX file, and a ROM code conversion program is produced by copying a text file(S3). The ROM soft IP program is generated by executing the program(S5).
Abstract:
PURPOSE: An apparatus for manufacturing a semiconductor device and a manufacturing method of the semiconductor device using the same are provided to be capable of effectively forming an insulating layer at a low temperature. CONSTITUTION: An apparatus for manufacturing a semiconductor device is provided with a reaction furnace(20), a wafer support part(40) installed in the reaction furnace for supporting a wafer, a heating part(50) for heating the wafer, a power supply(55) for supplying power to the heating part, and a gas flow part(10) for flowing reaction gas. The apparatus for manufacturing a semiconductor device further includes a plasma generating part(200) for transforming the reaction gas supplied from the gas flow part into ion reticle and supplying the ion reticle into the reaction furnace, and an ion removing part(300) for controlling the excessive flow of the ion reticle into the reaction furnace.
Abstract:
The present invention relates to a method of fabricating a vertical TI)MOS power device using sidewall spacers and a self-align technique and a TDMOS power device of the same. The TDMOS according to the present invention is fabricated using only 3 masks and a source is formed using the self-align technique to embody a highly integrated trench formation. During the process, ion implantation of high concentration into the bottom of the trench makes a thick oxide film grow on the bottom and the corner of the gate, so that electrical characteristic, specifically leakage current and breakdown voltage of the device can be improved. Also, process steps can be much decreased to lower process cost, high integration is possible, and reliability of the device can be improved.