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    • 4. 发明授权
    • Sound image localization device and sound image localization method
    • 声像定位装置和声像定位方法
    • US06546105B1
    • 2003-04-08
    • US09431092
    • 1999-11-01
    • Takashi KatayamaMasaharu MatsumotoMasahiro SueyoshiShuji MiyasakaTakeshi FujitaAkihisa KawamuraKazutaka AbeKousuke Nishio
    • Takashi KatayamaMasaharu MatsumotoMasahiro SueyoshiShuji MiyasakaTakeshi FujitaAkihisa KawamuraKazutaka AbeKousuke Nishio
    • H04R500
    • H04R5/00
    • A sound image localization apparatus comprises a signal source for outputting an audio signal; a localization angle input unit for receiving an angle of a sound image to be localized; a coefficient control unit for receiving sound image localization angle information from the localization angle input unit, reading coefficients from a coefficient memory in accordance with the information, and outputting the coefficients; first, second, and third multipliers for multiplying the audio signal output from the signal source by using first, second, and third coefficients output from the coefficient control means, respectively; a first signal processing unit for receiving the output from the second multiplier, and processing it by using a filter having a predetermined first frequency response; a second signal processing unit for receiving the output from the second multiplier, and processing it by using a filter having a predetermined second frequency response; a first adder for adding the output from the first multiplier and the output from the first signal processing unit to output the sum; a second adder for adding the output from the third multiplier and the output from the second signal processing unit to output the sum; a first output unit for outputting the output of the first adder; and a second output unit for outputting the output of the second adder.
    • 声像定位装置包括用于输出音频信号的信号源; 定位角输入单元,用于接收要定位的声像的角度; 系数控制单元,用于从定位角输入单元接收声像定位角度信息,根据该信息从系数存储器读取系数,并输出系数; 第一,第二和第三乘法器,分别通过使用从系数控制装置输出的第一,第二和第三系数来乘以从信号源输出的音频信号; 第一信号处理单元,用于接收来自第二乘法器的输出,并通过使用具有预定的第一频率响应的滤波器对其进行处理; 第二信号处理单元,用于接收来自第二乘法器的输出,并通过使用具有预定的第二频率响应的滤波器进行处理; 第一加法器,用于将来自第一乘法器的输出和来自第一信号处理单元的输出相加以输出和; 第二加法器,用于将来自第三乘法器的输出和来自第二信号处理单元的输出相加以输出和; 第一输出单元,用于输出第一加法器的输出; 以及第二输出单元,用于输出第二加法器的输出。
    • 5. 发明授权
    • Decoding device
    • 解码设备
    • US06297754B1
    • 2001-10-02
    • US09538674
    • 2000-03-30
    • Shuji MiyasakaTakeshi FujitaMasahiro SueyoshiAkihisa KawamuraMasaharu MatsumotoTakashi KatayamaKazutaka AbeKousuke Nishio
    • Shuji MiyasakaTakeshi FujitaMasahiro SueyoshiAkihisa KawamuraMasaharu MatsumotoTakashi KatayamaKazutaka AbeKousuke Nishio
    • H03M740
    • H03M7/425
    • A decoding device for decoding a data stream includes a decoding table including a first region and a second region; a first decoder; and a second decoder. The first region defines a relationship between first data having a predetermined number of bits and a result of decoding a portion of the first data having bits smaller than or equal to the predetermined number. The second region defines a relationship between concatenated data obtained by concatenating the first data with second data having additional bits and a result of decoding the concatenated data. The first decoder reads the first data from the data stream; decodes the portion of the first data based on the first region; determines whether the decoding of the portion of the first data is completed or not; and when the decoding of the portion of the first data is completed, outputs a result of the decoding of the portion of the first data. When the decoding of the portion of the first data is not completed, the second decoder reads the second data out of the data stream; concatenates the first data with the second data to generate the concatenated data; decodes the concatenated data based on the second region; and outputs a result of the decoding of the concatenated data.
    • 用于对数据流进行解码的解码装置包括:包括第一区域和第二区域的解码表; 第一解码器; 和第二解码器。 第一区域定义具有预定位数的第一数据和对具有小于或等于预定数目的位的第一数据的一部分进行解码的结果之间的关系。 第二区域定义了通过将第一数据与具有附加位的第二数据连接获得的级联数据和对级联数据进行解码的结果之间的关系。 第一解码器从数据流读取第一数据; 基于第一区域对第一数据的部分进行解码; 确定第一数据的部分的解码是否完成; 并且当第一数据的部分的解码完成时,输出第一数据的部分的解码结果。 当第一数据的部分的解码未完成时,第二解码器从数据流中读出第二数据; 将第一数据与第二数据连接以生成级联数据; 基于第二区域解码连接的数据; 并输出级联数据的解码结果。