公开(公告)号：US06292847B1

公开(公告)日：2001-09-18

申请号：US09203751

申请日：1998-12-02

申请人： Yoshiro Nishimoto ,  Takashi Morita ,  Toshiro Yamashita ,  Tetsuya Takahashi ,  Toshiaki Shimoda ,  Kazushige Harada

发明人： Yoshiro Nishimoto ,  Takashi Morita ,  Toshiro Yamashita ,  Tetsuya Takahashi ,  Toshiaki Shimoda ,  Kazushige Harada

IPC分类号： G06F300

CPC分类号： G11B20/10527 ,  G11B20/00007

摘要： A digital information reproducing apparatus in accordance with a prior art that uses a semiconductor memory to realize a memory means cannot reproduce digital data which has been encoded according to a compression coding form different from the one adopted by an incorporated decoding circuit. According to the present invention, a decoding program stored in a second semiconductor memory is selected according to a compression coding form adopted for digital data stored in a first semiconductor memory. The selected decoding program is used to decode the digital data by means of an arithmetic circuit. Thus, digital information can be reproduced irrespective of a compression coding form adopted for provided digital information.

摘要翻译： 根据现有技术的使用半导体存储器来实现存储装置的数字信息再现装置不能再现已经根据与内置的解码电路采用的压缩编码形式不同的压缩编码形式来编码的数字数据。 根据本发明，根据存储在第一半导体存储器中的数字数据采用的压缩编码形式来选择存储在第二半导体存储器中的解码程序。 所选择的解码程序用于通过算术电路解码数字数据。 因此，无论为所提供的数字信息采用的压缩编码形式如何，都可以再现数字信息。

公开(公告)号：US06339804B1

公开(公告)日：2002-01-15

申请号：US09233184

申请日：1999-01-20

申请人： Toshiaki Shimoda ,  Takashi Morita ,  Toshiro Yamashita ,  Tetsuya Takahashi ,  Yoshiro Nishimoto ,  Kazushige Harada

发明人： Toshiaki Shimoda ,  Takashi Morita ,  Toshiro Yamashita ,  Tetsuya Takahashi ,  Yoshiro Nishimoto ,  Kazushige Harada

IPC分类号： G06F1312

CPC分类号： G11B20/00007 ,  G11B20/10 ,  G11B27/005 ,  G11B2220/2529 ,  G11B2220/2545 ,  G11B2220/61

摘要： A digital information reproduction apparatus for compressing frames of data so as to intermittently reproduce the data in fast-forward speed. A data re-write device retrieves a reproduction-target frame for the fast-forward reproduction and a parameter-calculation-target frame exclusively for calculation of the frame data parameters. The frames then are transferred to a RAM. A decoder determines the frame data in the RAM, calculates the parameter-calculation frame data, and decodes the reproduction frame data by use of the parameter obtained as above. The described operation prevents expending the reproduction frame data with an incorrect parameter so as to normally fast-forward reproduce the compressed data. Furthermore, the present can select a frame used in the fast forward reproduction according to a feature index so that a section subjected to the fast-forward reproduction can be easily grasped by the user.

摘要翻译： 一种用于压缩数据帧以便以快进速度间歇地再现数据的数字信息再现设备。 数据重写装置检索用于快进再现的再现目标帧和唯一用于计算帧数据参数的参数计算目标帧。 然后将帧传送到RAM。 解码器确定RAM中的帧数据，计算参数计算帧数据，并通过使用如上获得的参数对再现帧数据进行解码。 所描述的操作防止用不正确的参数来扩展再现帧数据，以便正常快进再现压缩数据。 此外，本发明可以根据特征索引来选择在快进再生中使用的帧，从而可以容易地掌握经历快进再现的部分。

公开(公告)号：US06377979B1

公开(公告)日：2002-04-23

申请号：US09210646

申请日：1998-12-14

申请人： Toshiro Yamashita ,  Toshiaki Shimoda ,  Tetsuya Takahashi ,  Kazushige Harada

发明人： Toshiro Yamashita ,  Toshiaki Shimoda ,  Tetsuya Takahashi ,  Kazushige Harada

IPC分类号： G06F15167

CPC分类号： H04L29/06 ,  H04L67/1002

摘要： A multiple-processor system uses transfer blocks each having a size equal to or less than the capacity of a shared memory when transferring data from a master system to a slave system via the shared memory. Each transfer block includes a data to be transferred from the master system or a plurality of divisional data obtained by dividing the data to be transferred; information representing a writing-start address at which the data to be transferred or the plurality of divisional data starts to be written in storage for the slave system; and information representing the length of the data or the plurality of divisional data.

摘要翻译： 当通过共享存储器将数据从主系统传送到从系统时，多处理器系统使用各自具有等于或小于共享存储器容量的传输块。 每个传送块包括要从主系统传送的数据或通过划分要传送的数据获得的多个分割数据; 表示要传送的数据或多个分割数据的写入开始地址的信息开始被写入用于从系统的存储器中; 以及表示数据长度或多个分割数据的信息。

公开(公告)号：US20080267423A1

公开(公告)日：2008-10-30

申请号：US12078839

申请日：2008-04-07

申请人： Takashi Hiekata ,  Takashi Morita ,  Yohei Ikeda ,  Toshiaki Shimoda

发明人： Takashi Hiekata ,  Takashi Morita ,  Yohei Ikeda ,  Toshiaki Shimoda

IPC分类号： H04R3/00

CPC分类号： H04R3/005

摘要： An object sound extraction apparatus includes sound source separation sections for separating and generating an object sound separation signal corresponding to an object sound and reference sound separation signals corresponding to the other reference sound based on each combination of a main acoustic signal and sub acoustic signals, an object sound separation signal synthesis section for synthesizing the object sound separation signals, and a spectrum subtraction processing section for extracting an acoustic signal corresponding to the object sound from the synthesis signal by performing a spectrum subtraction processing between the synthesis signal and the reference sound separation signals. Accordingly, in acoustic environments where the object sound and the noises are mixed in the acoustic signals obtained via the microphones, and the mixed conditions can vary, a high object sound extraction performance can be ensured by a small object sound extraction apparatus.

摘要翻译： 对象声音提取装置包括声源分离部分，用于基于主声信号和副声信号的每个组合分离和产生对应于对象声音的对象声音分离信号和对应于其它参考声音的参考声音分离信号， 对象声音分离信号合成部分，用于合成对象声音分离信号;以及频谱减法处理部分，通过在合成信号和参考声音分离信号之间进行频谱减法处理，从合成信号中提取与对象声音相对应的声学信号 。 因此，在通过麦克风获得的声学信号中混合物体声音和噪声的声学环境中，并且混合条件可以变化，可以通过小物体声音提取装置来确保高目标声音提取性能。