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Patent Agency Ranking
公开(公告)号：KR101209213B1
公开(公告)日：2012-12-06
申请号：KR1020080122123
申请日：2008-12-03
IPC: G10L19/008 , G10L19/02 , H04S3/00
Abstract: 본발명은오디오신호의계층적파라메트릭스테레오부호화장치와복호화장치에관한것으로서, 오디오의좌측채널신호와우측채널신호를각각저대역좌측채널신호, 저대역우측채널신호, 고대역좌측채널신호, 고대역우측채널신호로분리하는제1 및제2QMF 분석부와, 저대역모노신호를생성하는저대역파라메트릭스테레오부호화기와, 고대역모노신호를생성하는고대역파라메트릭스테레오부호화기와, 저대역모노신호및 고대역모노신호를부호화하는핵심부호화기및 대역확장부호화기와, 저대역모노신호와고대역모노신호를스테레오파라메타와함께비트스트림으로형성하는패킷화부를포함한다. 이에따라, 스테레오파라메타를정확하게추출할수 있으며, 계산량감소가가능하고, 광대역스테레오및 초광대역스테레오출력을추가적인다운샘플링없이구현할수 있다.
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公开(公告)号：KR1020100022422A
公开(公告)日：2010-03-02
申请号：KR1020080122123
申请日：2008-12-03
IPC: G10L19/008 , G10L19/02 , H04S3/00
Abstract: PURPOSE: An apparatus of layered parametric stereo encoding and decoding for audio signals are provided to analyze low band and high band by 64 band with a low algorithm delay in order to exactly stereo parameters, to reduce calculating amount, and to implement wideband stereo output and ultra-wideband stereo output without additional down sampling. CONSTITUTION: An apparatus of layered parametric stereo encoding and decoding for audio signals includes a first 2QMF analysis unit(110a), a second 2QMF analysis unit(110b), a low band parametric stereo encoder(120), a high band parametric stereo encoder(125), a kernel encoder(130), a band expansion encoder(135), a packetizing unit(140). The first 2QMF analysis unit and the second 2QMF analysis unit divide left channel signals and right channel signals into low band left channel signals and high band right channel signals. The low band parametric stereo encoder extracts and encodes low bad stereo parameters and generates low band mono signals. The high band parametric stereo encoder extracts and encodes high bad stereo parameters and generates high band mono signals. The kernel encoder encodes low band mono signals. The band expansion encoder encodes high band mono signals. The packetizing unit generates a bit stream from encoded low band mono signals and high band mono signals with low band stereo parameters and high band stereo parameters.
Abstract translation: 目的：提供用于音频信号的分层参数立体声编码和解码装置，以低算法延迟分析低频带和高频带64频带，以精确地立体声参数，减少计算量，实现宽带立体声输出和 超宽带立体声输出，无需额外的下采样。 构成：用于音频信号的分层参数立体声编码和解码装置包括第一2QMF分析单元（110a），第二2QMF分析单元（110b），低频带参数立体声编码器（120），高频带参数立体声编码器 125），内核编码器（130），频带扩展编码器（135），分组化单元（140）。 第一个2QMF分析单元和第二个2QMF分析单元将左声道信号和右声道信号分成低频左声道信号和高频带右声道信号。 低频段参数立体声编码器提取和编码低劣的立体声参数，并产生低频单声道信号。 高频段参数立体声编码器提取和编码高不良立体声参数并产生高频单声道信号。 内核编码器编码低频单声道信号。 频带扩展编码器编码高频单声道信号。 分组单元从编码的低频单声道信号和具有低频带立体声参数和高频带立体声参数的高频单声道信号产生比特流。
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公开(公告)号：KR1019930007018B1
公开(公告)日：1993-07-26
申请号：KR1019900021853
申请日：1990-12-26
Applicant: 한국전자통신연구원
IPC: G06F15/16
Abstract: The initialization of system process boards, a CPU board and I/O boards is executed in parallel and the initialization of each board is executed execlusively to initialize multiprocessing system effectively. The method includes the steps of: (A) checking contents of a ROM when board a reset signal is received; (B) checking function of RAM and checking that 0 is stored in a RAM as an initial value; (C) checking a real time clock; (D) checking interrupt bus (IB); (E) checking a dual universal asynchronous receiver transmitter (DUART); (F) checking peripheral interface adapters; (G) initializing system memory board (3) and sending system ready (SYS-READY) signal to processor boards; and (H) initializing processor boards exclusively and receiving IAMALIVE signal transmitted from processor boards.
Abstract translation: 系统进程板，CPU板和I / O板的初始化并行执行，每个板的初始化都将执行有效地初始化多处理系统。 该方法包括以下步骤：（A）当接收到复位信号时检查ROM的内容; （B）检查RAM的功能，并检查将0存储在RAM中作为初始值; （C）检查实时时钟; （D）检查中断总线（IB）; （E）检查双通用异步接收发射机（DUART）; （F）检查外围接口适配器; （G）初始化系统存储器板（3）并向处理器板发送系统就绪（SYS-READY）信号; 和（H）专门初始化处理器板，并接收从处理器板发送的IAMALIVE信号。
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