会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Sound reproduction apparatus and sound reproduction method
    • 声音再现装置和声音再现方法
    • US09197978B2
    • 2015-11-24
    • US13260738
    • 2010-03-25
    • Hikaru UsamiNaoya TanakaToshihiko Date
    • Hikaru UsamiNaoya TanakaToshihiko Date
    • H04R1/10H04R5/00H04R5/02H04S7/00G10L19/008H04S3/00
    • H04S7/30G10L19/008H04R5/02H04R2205/024H04S3/004H04S7/302H04S7/304
    • A sound reproduction apparatus includes a sound source localization estimating unit that performs estimates using input audio signals in an acoustic space when the input audio signals are reproduced by speakers placed in standard positions; and a sound source signal separating unit that calculates a sound source localization signal and separates, from the input audio signals, sound source non-localization signals. Additionally, a sound source position parameter calculating unit calculates parameters indicating a position of the sound source localization signal in the acoustic space; and a reproduction signal generating unit uses the sound source position parameters to distribute the sound source localization signal to front speakers placed in the standard positions in front and headphones placed near the ears of a listener and in positions different from the standard positions, by combining the sound source localization signal and the sound source non-localization signals.
    • 声音再现装置包括声源定位估计单元,当输入音频信号由放置在标准位置的扬声器再现时,使用声音空间中的输入音频信号进行估计; 以及声源信号分离单元,其计算声源定位信号,并从输入音频信号中分离声源非定位信号。 此外,声源位置参数计算单元计算表示声源定位信号在声学空间中的位置的参数; 并且再现信号生成单元使用声源位置参数来将声源定位信号分配到位于前面的标准位置的前置扬声器和放置在收听者的耳朵附近的耳机以及与标准位置不同的位置, 声源定位信号和声源非定位信号。
    • 2. 发明授权
    • Sound signal processing device and method
    • 声音信号处理装置及方法
    • US08675882B2
    • 2014-03-18
    • US12863863
    • 2009-01-14
    • Naoya Tanaka
    • Naoya Tanaka
    • H03G3/00H04R1/02
    • H04S7/305G10L2021/02082
    • In reverberant environments, reflected waves including an echoic sound and a muffled sound affect and disable recognition of sound arrival directions. As a result, the subjective clearness of the sounds deteriorates. In order to enhance the clearness of a reproduced sound in a reverberant environment, a pre-processing filter unit corrects an input sound signal portion having a frequency band relating to human auditory recognition on a sound wave arrival direction, and speakers reproduce the sound signal. The correction involves attenuating an input sound signal in the frequency band portion, based on the relationship between the frequencies of the input sound signal and the magnitude of influence to the recognition of the sound wave arrival direction. This attenuation is achieved by filtering using filter coefficients that are set by a first filter characteristic setting unit using hearing characteristic parameters that are set by a hearing characteristic setting unit.
    • 在混响环境中,包括回声和声音的反射波影响和禁止声音到达方向的识别。 结果,声音的主观清晰度恶化。 为了增强混响环境中的再现声音的清晰度,预处理滤波器单元校正具有与声音到达方向上的人类听觉识别有关的频带的输入声音信号部分,扬声器再现声音信号。 校正涉及基于输入声音信号的频率与对声波到达方向的识别的影响的大小之间的关系来衰减频带部分中的输入声音信号。 通过使用由听觉特性设定单元设定的听觉特性参数由第一滤波器特性设定单元设定的滤波器系数进行滤波来实现该衰减。
    • 4. 发明申请
    • SOUND SIGNAL PROCESSING DEVICE AND METHOD
    • 声信号处理装置及方法
    • US20100296662A1
    • 2010-11-25
    • US12863863
    • 2009-01-14
    • Naoya Tanaka
    • Naoya Tanaka
    • H03G3/00H04R1/02
    • H04S7/305G10L2021/02082
    • In reverberant environments, reflected waves including an echoic sound and a muffled sound affect and disable recognition of sound arrival directions. As a result, the subjective clearness of the sounds deteriorates. In order to enhance the clearness of a reproduced sound in a reverberant environment, a pre-processing filter unit corrects an input sound signal portion having a frequency band relating to human auditory recognition on a sound wave arrival direction, and speakers reproduce the sound signal. The correction involves attenuating an input sound signal in the frequency band portion, based on the relationship between the frequencies of the input sound signal and the magnitude of influence to the recognition of the sound wave arrival direction. This attenuation is achieved by filtering using filter coefficients that are set by a first filter characteristic setting unit using hearing characteristic parameters that are set by a hearing characteristic setting unit.
    • 在混响环境中,包括回声和声音的反射波影响和禁止声音到达方向的识别。 结果,声音的主观清晰度恶化。 为了增强混响环境中的再现声音的清晰度,预处理滤波器单元校正具有与声音到达方向上的人类听觉识别有关的频带的输入声音信号部分,扬声器再现声音信号。 校正涉及基于输入声音信号的频率与对声波到达方向的识别的影响的大小之间的关系来衰减频带部分中的输入声音信号。 通过使用由听觉特性设定单元设定的听觉特性参数由第一滤波器特性设定单元设定的滤波器系数进行滤波来实现该衰减。
    • 5. 发明申请
    • ENCODING DEVICE AND DECODING DEVICE
    • 编码设备和解码设备
    • US20100280834A1
    • 2010-11-04
    • US12836900
    • 2010-07-15
    • Mineo TsushimaTakeshi NorimatsuKosuke NishioNaoya Tanaka
    • Mineo TsushimaTakeshi NorimatsuKosuke NishioNaoya Tanaka
    • G10L19/00
    • G10L21/038G10L19/0208G10L19/0212
    • An encoding device (200) includes an MDCT unit (202) that transforms an input signal in a time domain into a frequency spectrum including a lower frequency spectrum, a BWE encoding unit (204) that generates extension data which specifies a higher frequency spectrum at a higher frequency than the lower frequency spectrum, and an encoded data stream generating unit (205) that encodes to output the lower frequency spectrum obtained by the MDCT unit (202) and the extension data obtained by the BWE encoding unit (204). The BWE encoding unit (204) generates as the extension data (i) a first parameter which specifies a lower subband which is to be copied as the higher frequency spectrum from among a plurality of the lower subbands which form the lower frequency spectrum obtained by the MDCT unit (202) and (ii) a second parameter which specifies a gain of the lower subband after being copied.
    • 一种编码装置(200)包括:将时域中的输入信号变换成包括较低频谱的频谱的MDCT单元(202),生成扩展数据的BWE编码单元(204),其生成指定较高频谱的扩展数据 频率高于较低频谱的编码数据流生成单元(205),其编码为输出由MDCT单元(202)获得的较低频谱和由BWE编码单元(204)获得的扩展数据。 BWE编码单元(204)生成作为扩展数据(i)的第一参数,该第一参数指定要从多个下个子带中复制的较低子带作为较高频谱,其形成由 MDCT单元(202)和(ii)指定复制后下一个子带的增益的第二参数。
    • 9. 发明授权
    • Encoding device, decoding device and audio data distribution system
    • 编码设备,解码设备和音频数据分发系统
    • US07392176B2
    • 2008-06-24
    • US10285627
    • 2002-11-01
    • Kosuke NishioTakeshi NorimatsuMineo TsushimaNaoya Tanaka
    • Kosuke NishioTakeshi NorimatsuMineo TsushimaNaoya Tanaka
    • G10L19/02
    • G10L21/038G10L19/0208
    • An audio data input unit of an encoding device splits an audio data string into contiguous samples of audio data, and a transforming unit transforms the split audio data into spectral data in a frequency domain. A data dividing unit divides the spectral data into a lower frequency band and a higher frequency band at 11.025 kHz (f1) as a boundary. The spectral data in the lower frequency band is quantized and encoded by a first quantizing unit and an encoding unit. A second quantizing unit generates sub information indicating a characteristic of the spectral data in the higher frequency band, and a second encoding unit encodes the sub information. A stream output unit integrates the codes obtained by the first and second encoding units and outputs the integrated one. Here, f1 is a half or less of a sampling frequency f2 at which the audio data string is created.
    • 编码装置的音频数据输入单元将音频数据串分割为音频数据的连续样本,变换单元将分割音频数据变换为频域中的频谱数据。 数据分割单元将频谱数据划分为11.025kHz(f 1)的较低频带和较高频带作为边界。 较低频带中的频谱数据由第一量化单元和编码单元进行量化和编码。 第二量化单元产生指示较高频带中的频谱数据的特性的子信息,第二编码单元对子信息进行编码。 流输出单元将由第一编码单元和第二编码单元获得的代码进行积分并输出。 这里,f 1是创建音频数据串的采样频率f 2的一半或更小。
    • 10. 发明授权
    • Encoding device and decoding device
    • 编码设备和解码设备
    • US07328160B2
    • 2008-02-05
    • US10285633
    • 2002-11-01
    • Kosuke NishioTakeshi NorimatsuMineo TsushimaNaoya Tanaka
    • Kosuke NishioTakeshi NorimatsuMineo TsushimaNaoya Tanaka
    • G10L19/00
    • G10L21/038G10L19/0208
    • An encoding device includes a transforming unit operable to extract a part of an inputted audio signal at predetermined time intervals and to transform each extracted part to produce a plurality of windows composed of short blocks, and a judging unit operable to compare the windows with one another to judge whether there is a similarity of a predetermined degree and to replace a high frequency part of a first window, which is one of the produced windows, with values “0” when there is the similarity, wherein the first window and a second window share a high frequency part of the second window, which is also one of the produced windows. The encoding device also includes a first quantizing unit operable to quantize the produced windows after replacing operation; a first encoding unit operable to encode the quantized windows to produce encoded data; and a stream output unit operable to output the produced encoded data.
    • 一种编码装置,包括:变换单元,用于以预定的时间间隔提取输入的音频信号的一部分,并且变换每个提取的部分以产生由短块组成的多个窗口;以及判断单元,用于将窗口彼此进行比较 判断是否存在预定程度的相似度,并且当存在相似性时,将作为生成窗口之一的第一窗口的高频部分替换为值“0”,其中第一窗口和第二窗口 分享第二个窗口的高频部分,这也是生成的窗口之一。 编码装置还包括第一量化单元,其可操作以在更换操作之后量化生成的窗口; 第一编码单元,其可操作以对所述量化窗口进行编码以产生编码数据; 以及流输出单元,其可操作以输出所生成的编码数据。