Method, medium, and apparatus encoding and/or decoding an audio signal
    71.
    发明申请
    Method, medium, and apparatus encoding and/or decoding an audio signal 有权
    对音频信号进行编码和/或解码的方法,介质和装置

    公开(公告)号:US20070127580A1

    公开(公告)日:2007-06-07

    申请号:US11634251

    申请日:2006-12-06

    IPC分类号: H04B14/04

    摘要: A method, medium, and apparatus encoding and/or decoding an audio signal. The method of encoding an audio signal includes transforming an input audio signal into an audio signal in a frequency domain, quantizing the frequency-domain transformed audio signal, and performing bitplane coding on the quantized audio signal using a context that represents various available symbols of an upper bitplane.

    摘要翻译: 编码和/或解码音频信号的方法,介质和装置。 编码音频信号的方法包括将输入音频信号变换成频域中的音频信号,量化频域变换的音频信号,以及使用表示各种可用符号的上下文对量化的音频信号进行位平面编码 上位面

    Magnetic resonance imaging (MRI) system
    72.
    发明授权
    Magnetic resonance imaging (MRI) system 失效
    磁共振成像(MRI)系统

    公开(公告)号:US5874831A

    公开(公告)日:1999-02-23

    申请号:US805179

    申请日:1997-02-26

    IPC分类号: A61B5/055 G01R33/385 G01V3/00

    CPC分类号: G01R33/385

    摘要: A magnetic resonance imaging (MRI) system includes a computer for performing overall control and signal processing, a pulse generator for generating a predetermined RF pulse signal and a gradient field pulse signal having variable intensities, a main magnet for generating a static magnetic field, a gradient field coil having a cylindrical dish-like structure surrounding a magnetic pole of the main magnet for generating a gradient field based on the gradient field pulse signal, an RF coil for transmitting a RF field according to the RF pulse signal to an imaging object and receiving MR signals from the imaging object, and an analog-to-digital converter for converting the MR signals from the RF coil into digital signals and outputting the converted digital signals to the computer. The influence of the reverse magnetic field generated from the reverse circulation portion of the gradient field coil is reduced whereby the linear gradient field region and an image region thereof are enlarged, and gradient field coils can be attached stably to magnetic poles whereby vibration and noise are reduced.

    摘要翻译: 磁共振成像(MRI)系统包括用于执行总体控制和信号处理的计算机,用于产生预定RF脉冲信号的脉冲发生器和具有可变强度的梯度场脉冲信号,用于产生静态磁场的主磁体, 梯形场线圈,其具有围绕主磁体的磁极的圆柱形盘状结构,用于基于梯度场脉冲信号产生梯度场; RF线圈,用于根据RF脉冲信号将RF场发送到成像对象;以及 从成像对象接收MR信号;以及模数转换器,用于将来自RF线圈的MR信号转换为数字信号,并将转换的数字信号输出到计算机。 由于梯度场线圈的反向循环部产生的反向磁场的影响减小,因此线性梯度场区域及其图像区域被扩大,梯度场线圈可以稳定地附着在磁极上,由此振动和噪声是 减少

    Method for recording additional information on an optical disc
    73.
    发明授权
    Method for recording additional information on an optical disc 失效
    在光盘上记录附加信息的方法

    公开(公告)号:US5526331A

    公开(公告)日:1996-06-11

    申请号:US393887

    申请日:1995-02-22

    摘要: A dual disc recording/reproducing apparatus and recording method. The apparatus includes a reproducing deck unit and a recording/reproducing deck unit with both being controlled by one control unit. The method comprises the steps of recording on a disc a first program and a disc playing time on the lead-in area thereof unless data is recorded on the disc, recording the data onto the next recording area of the lead-out area if data is already recorded on the disc, and then recording the lead-out to process a present lead-out area as a bad block area. The next step is recording a new lead-out at the end of the disc playing time, and then processing the previous and next blocks, including the present lead-out area, as a bad block during the recording of the data, processing the previous and next blocks, including the lead-in area, as a bad block, and then recording the data in the program memory area onto a new lead-in area.

    摘要翻译: 双盘记录/再现装置和记录方法。 该装置包括一个再现甲板单元和一个记录/再现甲板单元,它们都由一个控制单元控制。 该方法包括以下步骤:在光盘上记录第一节目和光盘播放时间,除非数据被记录在光盘上,如果数据是数据,则将数据记录到导出区的下一个记录区域 已经记录在光盘上,然后记录导出,以将当前导出区域作为坏块区域进行处理。 下一步是在光盘播放时间结束时记录新的导出,然后在记录数据期间处理包括当前导出区的前一个和下一个块作为坏块,处理前一个 以及包括导入区的下一个块作为坏块,然后将程序存储区中的数据记录到新的导入区上。

    Method and apparatus to conceal error in decoded audio signal
    78.
    发明授权
    Method and apparatus to conceal error in decoded audio signal 有权
    隐藏解码音频信号误差的方法和装置

    公开(公告)号:US08798172B2

    公开(公告)日:2014-08-05

    申请号:US11749249

    申请日:2007-05-16

    IPC分类号: H04N7/12 G06F11/00

    CPC分类号: G10L19/005

    摘要: A method and apparatus to decode audio data constructed with a plurality of layers. An error concealment method of process a decoded bitstream selects one of a frequency domain and a time domain in order to conceal the errors, detects a position where the errors exist in a frame when the error concealment method in the frequency domain is selected, and conceals the errors only in a segment after the detected position.

    摘要翻译: 一种解码由多层构成的音频数据的方法和装置。 处理解码比特流的错误隐藏方法选择频域和时域中的一个以隐藏错误,当选择频域中的错误隐藏方法时,检测在帧中存在错误的位置,并且隐藏 检测到位置之后的错误。

    Apparatus and method for encoding/decoding a multichannel signal
    79.
    发明授权
    Apparatus and method for encoding/decoding a multichannel signal 有权
    用于对多声道信号进行编码/解码的装置和方法

    公开(公告)号:US08767850B2

    公开(公告)日:2014-07-01

    申请号:US13464509

    申请日:2012-05-04

    IPC分类号: H04K1/10 H04L27/28 H04H40/54

    CPC分类号: G10L19/008

    摘要: An apparatus for encoding/decoding a multichannel signal. The apparatus for encoding/decoding a multichannel signal processes phase parameters for phase information among a plurality of channels constituting the multichannel signal in consideration of the characteristics of the multichannel signal. The apparatus generates an encoded bit stream for the multichannel signal using the processed phase parameters and the mono signal extracted from the multichannel signal.

    摘要翻译: 一种用于对多声道信号进行编码/解码的装置。 考虑到多通道信号的特性,用于编码/解码多通道信号的装置在构成多通道信号的多个通道中处理相位信息的相位参数。 该装置使用经处理的相位参数和从多声道信号提取的单声道信号来生成用于多声道信号的编码比特流。

    Method and apparatus for encoding and decoding audio/speech signal
    80.
    发明授权
    Method and apparatus for encoding and decoding audio/speech signal 有权
    用于对音频/语音信号进行编码和解码的方法和装置

    公开(公告)号:US08630863B2

    公开(公告)日:2014-01-14

    申请号:US11872116

    申请日:2007-10-15

    IPC分类号: G10L19/00 G10L19/02

    CPC分类号: G10L19/00 G10L19/025

    摘要: Provided is a method of encoding an audio/speech signal, the method including determining a variable length of a frame, that is, a processing unit of an input signal in accordance with a position of an attack in the input signal; transforming each frame of the input signal to a frequency domain and dividing the frame into a plurality of sub frequency bands; and, if a signal of a sub frequency band is determined to be encoded in the frequency domain, encoding the signal of the sub frequency band in the frequency domain, and if the signal of the sub frequency band is determined to be encoded in a time domain, inverse transforming the signal of the sub frequency band to the time domain and encoding the inverse transformed signal in the time domain. According to the present invention, the audio/speech signal may be efficiently encoded by controlling time resolution and frequency resolution.

    摘要翻译: 提供了一种对音频/语音信号进行编码的方法,该方法包括根据输入信号中的攻击位置来确定帧的可变长度,即输入信号的处理单元; 将所述输入信号的每个帧变换为频域并将所述帧划分为多个子频带; 并且如果确定在频域中编码子频带的信号,则对频域中的子频带的信号进行编码,并且如果确定子频带的信号被编码在一个时间 域,将子频带的信号逆变换到时域,并对时域中的逆变换信号进行编码。 根据本发明,可以通过控制时间分辨率和频率分辨率来有效地编码音频/语音信号。