公开(公告)号：KR20120077814A

公开(公告)日：2012-07-10

申请号：KR20100139903

申请日：2010-12-31

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： CHOI BYUNG HO ,  KIM DONG SUN ,  KIM JE WOO ,  CHO CHOONG SANG ,  LEE SEUNG YERL ,  LEE SANG SEOL

IPC: H04N7/26

CPC classification number: G10L19/06

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 translation: 目的：提供了一种用于形成MPEG-4 ALS VLSI的低复杂度可变序列短期预测器，用于在形成MPEG-4 ALS硬件时降低复杂度。 构成：预定块（110）响应于输入的预测顺序值产生修改的预测顺序。 环路控制器（120）响应于修改的预测顺序值确定重复和标志信号的数量。 FIR（有限脉冲响应）滤波器（160）接收采样信号。 根据二进制算法将流水线延迟应用于FIR滤波器。 FIR滤波器对采样信号进行滤波。 输出块（180）将确定的循环控制结果与FIR滤波器的滤波输出结果相加。

公开(公告)号：KR20100025790A

公开(公告)日：2010-03-10

申请号：KR20080084482

申请日：2008-08-28

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： KIM DONG SUN ,  HWANG TAE HO ,  MOON YEON KUG ,  WON KWANG HO

IPC: H04B7/005 ,  H04B7/26 ,  H04L29/02

CPC classification number: Y02D70/00 ,  Y02D70/14 ,  Y02D70/44 ,  H04B7/005 ,  H04B7/2612 ,  H04L9/0625 ,  H04L9/0631 ,  H04W4/008

Abstract: PURPOSE: An apparatus of digital MAC for IEEE 802.15.4 system and a system thereof are provided to perform a MAC(Media Access Control) operation without control from the processor. CONSTITUTION: A frame generating unit(410) generates and outputs a frame based on received data, and a frame analyzing unit(420) analyzes the input frame received through a data bus. The frame analyzing unit generates and outputs a control signal and the transceiving data, and a control unit activates the frame generating unit and/or the frame analyzing unit according to the generated control signal. The control unit transmits the outputted frame or data to a processor according to the operation.

Abstract translation: 目的：提供用于IEEE 802.15.4系统的数字MAC装置及其系统，以在不受处理器控制的情况下执行MAC（媒体访问控制）操作。 构成：帧生成单元（410）基于接收到的数据生成并输出帧，帧分析单元（420）分析通过数据总线接收的输入帧。 帧分析单元生成并输出控制信号和收发数据，控制单元根据生成的控制信号来激活帧生成单元和/或帧分析单元。 控制单元根据该操作将输出的帧或数据发送到处理器。