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    Decoding apparatus and method, encoding apparatus and method, and program
    1.
    发明授权
    Decoding apparatus and method, encoding apparatus and method, and program 有权
    解码装置和方法，编码装置和方法以及程序

    公开(公告)号：US08972249B2

    公开(公告)日：2015-03-03

    申请号：US13634658

    申请日：2011-03-15

    Applicant: Shiro Suzuki ,  Yuuki Matsumura ,  Jun Matsumoto ,  Yuuji Maeda ,  Yasuhiro Toguri

    Inventor： Shiro Suzuki ,  Yuuki Matsumura ,  Jun Matsumoto ,  Yuuji Maeda ,  Yasuhiro Toguri

    IPC: G10L19/02 ,  G10L21/038

    CPC classification number: G10L21/038 ,  G10L19/0212

    Abstract: The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side.A higher frequency component generating unit (73) generates a pseudo higher frequency spectrum by using a lower frequency spectrum (SP-L) and a higher frequency envelope (ENV-H). A phase randomizing unit (74) randomizes the phase of the pseudo higher frequency spectrum, based on a random flag (RND). An inverse MDCT unit (75) denormalizes the lower frequency spectrum (SP-L) by using a lower frequency envelope (ENV-L), and combines the pseudo higher frequency spectrum supplied from the phase randomizing unit (74) with the denormalized lower frequency spectrum (SP-L). The combination result is used as the spectrum of the entire band. The present invention can be applied to a decoding apparatus that performs band extension decoding, for example.

    Abstract translation: 解码装置，解码方法，编码装置，编码方法和程序技术领域本发明涉及可以缩短在解码时由频带扩展引起的延迟时间的解码装置，解码方法，编码装置，编码方法和程序，并且抑制解码侧的资源增加。 较高频率分量产生单元（73）通过使用较低频谱（SP-L）和较高频率包络（ENV-H）产生伪较高频谱。 相位随机化单元（74）基于随机标记（RND）使伪较高频谱的相位随机化。 逆MDCT单元（75）通过使用较低频率包络（ENV-L）对较低频谱（SP-L）进行非归一化，并且将从相位随机化单元（74）提供的伪高频频谱与非归一化较低频率 光谱（SP-L）。 组合结果用作整个频带的频谱。 本发明可以应用于例如进行频带扩展解码的解码装置。

    DECODING DEVICE, DECODING METHOD, AND PROGRAM
    2.
    发明申请
    DECODING DEVICE, DECODING METHOD, AND PROGRAM 有权
    解码设备，解码方法和程序

    公开(公告)号：US20120026861A1

    公开(公告)日：2012-02-02

    申请号：US13191216

    申请日：2011-07-26

    Applicant: Yuuji Maeda ,  Jun Matsumoto ,  Yasuhiro Toguri ,  Shiro Suzuki ,  Yuuki Matsumura

    Inventor： Yuuji Maeda ,  Jun Matsumoto ,  Yasuhiro Toguri ,  Shiro Suzuki ,  Yuuki Matsumura

    IPC: H04J11/00

    CPC classification number: H04L27/2649 ,  H04L27/2639

    Abstract: A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal.

    Abstract translation: 解码装置包括：获取单元，被配置为获取包括窄带信号和宽带信号的第一频率信号;直接逆正交变换单元，被配置为对所述第一频率信号的窄带信号执行直接矩阵运算，以便 执行逆正交变换，以及高速逆正交变换单元，被配置为使用相对于第一频率信号的宽带信号的高速运算方法执行逆正交变换。

    Power converter
    3.
    发明授权
    Power converter 有权
    电源转换器

    公开(公告)号：US07777433B2

    公开(公告)日：2010-08-17

    申请号：US11254788

    申请日：2005-10-21

    Applicant: Koji Yamaguchi ,  Yuuji Maeda ,  Tokihito Suwa ,  Satoru Sigeta

    Inventor： Koji Yamaguchi ,  Yuuji Maeda ,  Tokihito Suwa ,  Satoru Sigeta

    IPC: H02P3/00 ,  H02P5/00

    CPC classification number: H02M7/003 ,  H01L2224/0603 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2924/00014

    Abstract: The power converter for solving the above-described problem has a module section and a drive section for operating the module section. The drive section has a drive circuit. The drive circuit is provided so as to correspond to the first semiconductor element which is one of the semiconductor elements comprising the parallel circuit; wherein drive signals for operating the first semiconductor element are output. The drive signals that are output from the drive circuit are electrically branched and output to a second semiconductor element which is a separate semiconductor element from the first semiconductor element of the semiconductor elements comprising the parallel circuit. As a result, the second semiconductor element receives the branched drive signals and operates in the same manner as the first semiconductor element.Thereby, a motor converter favorable for control large current at a low cost is provided.

    Abstract translation: 用于解决上述问题的电力转换器具有用于操作模块部分的模块部分和驱动部分。 驱动部分具有驱动电路。 驱动电路被设置为对应于作为包括并联电路的半导体元件之一的第一半导体元件; 其中输出用于操作第一半导体元件的驱动信号。 从驱动电路输出的驱动信号被电分支并输出到与包括并联电路的半导体元件的第一半导体元件分离的半导体元件的第二半导体元件。 结果，第二半导体元件接收分支驱动信号并以与第一半导体元件相同的方式工作。 因此，提供了一种有利于以低成本控制大电流的电机转换器。

    Control device for battery charging AC generator used in motor vehicle
    6.
    发明授权
    Control device for battery charging AC generator used in motor vehicle 失效
    汽车控制装置用于汽车的交流发电机

    公开(公告)号：US5448154A

    公开(公告)日：1995-09-05

    申请号：US83286

    申请日：1993-06-29

    Applicant: Atsushi Kanke ,  Katsuji Marumoto ,  Keiichi Mashino ,  Yuuji Maeda ,  Shouju Masumoto ,  Naoyuki Takahashi ,  Shuuichi Kokubun

    Inventor： Atsushi Kanke ,  Katsuji Marumoto ,  Keiichi Mashino ,  Yuuji Maeda ,  Shouju Masumoto ,  Naoyuki Takahashi ,  Shuuichi Kokubun

    IPC: H02J7/24 ,  H02P9/00

    CPC classification number: H02J7/245 ,  Y02T10/92

    Abstract: A control device for a battery charging AC generator for a motor vehicle including a power transistor connected in series with a field winding of the AC generator for performing switching control of a current flowing through the field winding. A voltage deviation circuit detects a deviation of the battery voltage from a reference voltage; and a PWM signal generating circuit is responsive to a voltage deviation signal from the voltage deviation circuit for turning the power transister on and off a resistor connected in series with the power transistor detects a current flowing through the field winding; and a current limiting circuit generates a turn off signal for the power transistor when the detected current is determined to have exceeded a reference current. A latch circuit operates in response to a clock signal from the PWM signal generating circuit to limit the frequency of turning on and off of the power transistor to below 1 KHz.

    Abstract translation: 一种用于汽车的电池充电交流发电机的控制装置，包括与AC发电机的励磁绕组串联的功率晶体管，用于对流过励磁绕组的电流进行开关控制。 电压偏差电路检测电池电压与参考电压的偏差; 并且PWM信号发生电路响应于来自电压偏差电路的电压偏差信号，用于使功率转换器接通和断开与功率晶体管串联的电阻器，检测流过励磁绕组的电流; 并且当检测到的电流被确定为已经超过参考电流时，限流电路产生功率晶体管的截止信号。 锁存电路响应于来自PWM信号发生电路的时钟信号而工作，以将功率晶体管的导通和截止频率限制在低于1KHz。

    Encoding apparatus, encoding method, decoding apparatus, decoding method, and program
    8.
    发明授权
    Encoding apparatus, encoding method, decoding apparatus, decoding method, and program 有权
    编码装置，编码方法，解码装置，解码方法和程序

    公开(公告)号：US08626501B2

    公开(公告)日：2014-01-07

    申请号：US13303443

    申请日：2011-11-23

    Applicant: Yasuhiro Toguri ,  Jun Matsumoto ,  Yuuji Maeda ,  Shiro Suzuki ,  Yuuki Matsumura

    Inventor： Yasuhiro Toguri ,  Jun Matsumoto ,  Yuuji Maeda ,  Shiro Suzuki ,  Yuuki Matsumura

    IPC: G10L21/00

    CPC classification number: G10L19/035

    Abstract: An encoding apparatus includes a time-frequency transform unit that performs a time-frequency transform on an audio signal, a normalization unit that normalizes a frequency spectral coefficient obtained by the time-frequency transform in order to generate encoded data of the audio signal, a level calculation unit that calculates a level of the audio signal, a scale factor changing unit that changes a concealment scale factor included in encoded concealment data obtained by performing, on the basis of the level of the audio signal, a time-frequency transform and normalization on a minute noise signal, the concealment scale factor being a scale factor relating to a coefficient used for the normalization, and an output unit that outputs the encoded data of the audio signal generated by the normalization unit or outputs, as encoded data of the audio signal, the encoded concealment data whose concealment scale factor has been changed.

    Abstract translation: 编码装置包括对音频信号执行时间 - 频率变换的时间 - 频率变换单元，对通过时间 - 频率变换得到的频谱系数进行归一化的归一化单元，生成音频信号的编码数据， 电平计算单元，其计算音频信号的电平;比例因子改变单元，其改变通过基于音频信号的电平执行时间 - 频率变换和归一化而获得的编码隐藏数据中包括的隐藏比例因子 在微小噪声信号上，隐藏比例因子是与用于归一化的系数相关的比例因子，以及输出单元，其输出由归一化单元或输出产生的音频信号的编码数据作为音频的编码数据 信号，其隐藏比例因子已经改变的编码隐藏数据。

    Encoding apparatus, encoding method, decoding apparatus, decoding method, and program
    9.
    发明授权
    Encoding apparatus, encoding method, decoding apparatus, decoding method, and program 有权
    编码装置，编码方法，解码装置，解码方法和程序

    公开(公告)号：US08451148B2

    公开(公告)日：2013-05-28

    申请号：US13153915

    申请日：2011-06-06

    Applicant: Yuuji Maeda

    Inventor： Yuuji Maeda

    IPC: H03M7/40

    CPC classification number: H03M7/40 ,  G10L19/035

    Abstract: Provided is an encoding apparatus including: a determination unit which determines bit allocation at the time of quantizing a data signal based on normalization information of the data signal so that a data length as a result of fixed length encoding of the quantized data signal becomes close to a second data length which is equal to or larger than a first data length allocated to a result of variable length encoding of the quantized data signal; a quantizer which quantizes the data signal based on the bit allocation; and an encoder which performs variable length encoding on the quantized data signal, wherein the determination unit updates the second data length so that a difference between a data length of the variable-length-encoded data signal and the first data length is within a predetermined range.

    Abstract translation: 提供了一种编码装置，包括：确定单元，其基于数据信号的归一化信息来确定量化数据信号时的位分配，使得作为量化数据信号的固定长度编码的结果的数据长度变得接近 第二数据长度等于或大于分配给量化数据信号的可变长度编码结果的第一数据长度; 量化器，其基于比特分配量化数据信号; 以及对所述量化数据信号执行可变长度编码的编码器，其中，所述确定单元更新所述第二数据长度，使得所述可变长度编码数据信号的数据长度与所述第一数据长度之间的差在预定范围内 。

    AUDIO ENCODER, AUDIO ENCODING METHOD AND PROGRAM
    10.
    发明申请
    AUDIO ENCODER, AUDIO ENCODING METHOD AND PROGRAM 有权
    音频编码器，音频编码方法和程序

    公开(公告)号：US20130003980A1

    公开(公告)日：2013-01-03

    申请号：US13493850

    申请日：2012-06-11

    Applicant: Yasuhiro Toguri ,  Yuuji Maeda ,  Jun Matsumoto ,  Shiro Suzuki ,  Yuuki Matsumura

    Inventor： Yasuhiro Toguri ,  Yuuji Maeda ,  Jun Matsumoto ,  Shiro Suzuki ,  Yuuki Matsumura

    IPC: H04R5/00

    CPC classification number: G10L19/008 ,  H04S1/007 ,  H04S2400/09

    Abstract: There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part.

    Abstract translation: 提供了一种音频编码器，其包括确定部件，其基于多个通道的音频信号的频谱，确定混合比率作为相对于多个通道中的每个通道混合后的频谱的比率 用于另一通道的频谱，混合部分基于由确定部分确定的混合比混合用于每个通道的多个通道的频谱;以及编码部分，其通过混合混合之后编码多个通道的频谱 部分。

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