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34 条记录 (耗时 0.026 秒)

    Sound field enlarging device and method
    8.
    发明授权
    Sound field enlarging device and method 失效
    声场放大装置及方法

    公开(公告)号：US4642812A

    公开(公告)日：1987-02-10

    申请号：US726267

    申请日：1985-04-23

    申请人： Junichi Yoshio ,  Toshio Hirano ,  Kenichiro Yasukawa ,  Masayuki Yoshida

    发明人： Junichi Yoshio ,  Toshio Hirano ,  Kenichiro Yasukawa ,  Masayuki Yoshida

    IPC分类号： G11B20/10 ,  H04S1/00 ,  H04R5/00

    CPC分类号： H04S1/007

    摘要： A method for performing sound field enlargement in a digital audio reproducing apparatus such as a compact disc player. A sum is calculated between each received pair of right-channel and left-channel data read from the disc, and the resulting sum data is stored in a random access memory. After a predetermined delay time, the sum data are read from the memory and multiplexed with the then-incoming right-channel and left-channel data. The resulting data stream is converted to respective right-channel, left-channel, and delayed-sum analog signals, which are then subjected to low-pass filtering. The filtered signals are processed in a conventional manner to yield outputs signals which, when reproduced, produce a perception of an enlarged sound field.

    摘要翻译： 一种用于在诸如光盘播放器的数字音频再现装置中执行声场放大的方法。 在从盘读取的每个接收的右声道和左声道数据对之间计算和，并将所得到的和数据存储在随机存取存储器中。 在预定的延迟时间之后，从存储器中读取和数据，并与随后的右声道和左声道数据进行多路复用。 所得到的数据流被转换成相应的右声道，左声道和延迟和模拟信号，然后进行低通滤波。 滤波后的信号以常规方式进行处理，以产生输出信号，当再现时产生放大声场的感知。

    Rotary recording medium reproducing apparatus
    9.
    发明授权
    Rotary recording medium reproducing apparatus 失效

    公开(公告)号：US4400808A

    公开(公告)日：1983-08-23

    申请号：US294360

    申请日：1981-08-19

    申请人： Takashi Saito ,  Toshio Hirano ,  Takashi Kumaki

    发明人： Takashi Saito ,  Toshio Hirano ,  Takashi Kumaki

    IPC分类号： G11B17/032 ,  G11B17/04 ,  G11B25/04

    CPC分类号： G11B17/049 ,  G11B17/032

    摘要： A rotary recording medium reproducing apparatus reproduces a rotary recording medium accommodated within a case, where the case comprises a jacket provided with a space for accommodating the rotary recording medium and an opening for allowing the rotary recording medium to go in and out of the jacket, and a lid member inserted through the opening of the jacket for closing the opening of the jacket. The rotary recording medium reproducing apparatus comprises an inserting opening through which the case is inserted, a turntable for rotating the rotary recording medium, a lid member locking mechanism and rotary recording medium clamping mechanism respectively provided at an innermost part of the reproducing apparatus opposite to the inserting opening with respect to the turntable, a jacket opening enlarging mechanism provided in the vicinity of the inserting opening, capable of moving over the turntable between a position in the vicinity of the inserting opening and the innermost part of the reproducing apparatus, in response to an operation in which the case is inserted into and pulled out from the reproducing apparatus, an elevator mechanism for raising and lowering a rotary recording medium supporting member for supporting the rotary recording medium, independently from the turntable, an elevator motor for operating the elevator mechanism, when the elevator motor operates so that the support member is at a raised position due to the operation of the elevator mechanism upon insertion of the case into the reproducing apparatus, and an elevator lever member provided respective of the elevator mechanism, for operating the elevator mechanism by operating independently from the elevator motor. The elevator lever member is positioned within a moving passage of a locking guiding part which is a part of the jacket opening enlarging means. Further, the elevator lever member is locked and guided by the locking guiding part and displaced towards a direction so as to operate the elevator means to lower the supporting member so that the supporting member retreats from a case inserting path upon insertion of the case into the reproducing apparatus, and is released of the locking operation by the locking guiding part and displaced towards an opposite direction so as to operate the elevator means to raise the supporting member upon extraction of the case from the reproducing apparatus.

    BLADE VIBRATION MEASURING APPARATUS
    10.
    发明申请
    BLADE VIBRATION MEASURING APPARATUS 有权
    叶片振动测量装置

    公开(公告)号：US20130247671A1

    公开(公告)日：2013-09-26

    申请号：US13613398

    申请日：2012-09-13

    申请人： Kohichi Nakayama ,  Kenji Osaki ,  Hisashi Matsuda ,  Hitoshi Sakakida ,  Toshio Hirano ,  Toshiaki Hirate ,  Sueyoshi Mizuno ,  Ikuo Saito

    发明人： Kohichi Nakayama ,  Kenji Osaki ,  Hisashi Matsuda ,  Hitoshi Sakakida ,  Toshio Hirano ,  Toshiaki Hirate ,  Sueyoshi Mizuno ,  Ikuo Saito

    IPC分类号： G01N29/12

    CPC分类号： G01N29/12 ,  F01D5/16 ,  F01D21/003 ,  F05D2220/31 ,  G01H3/04 ,  G01H3/10

    摘要： According to the embodiment, there is provided a blade vibration measuring apparatus, having, a contactless displacement 5 sensor which outputs a displacement measurement signal as measuring a displacement of a turbine moving blade in a rotation axis direction, a blade top position identifying device which outputs a blade top position identification signal to identify a top position based on a distance between the contactless displacement sensor 10 and the top position of the turbine moving blade as receiving the displacement measurement signal output from the contactless displacement sensor, and a blade vibration calculating device which calculates vibration amplitude and a vibration frequency of the turbine moving blade based on temporal variation of the distance 15 between the contactless displacement sensor and the top position of the turbine moving blade as receiving the blade top position identification signal output from the blade top position identifying device.

    摘要翻译： 根据本实施方式，提供一种叶片振动测定装置，具有：非旋转位移传感器，其输出作为测量涡轮机动叶片在旋转轴方向上的位移的位移测量信号;叶片顶部位置识别装置，其输出 叶片顶部位置识别信号，用于在接收从非接触位移传感器输出的位移测量信号时基于非接触位移传感器10与涡轮机动叶片的顶部位置之间的距离来识别顶部位置;以及叶片振动计算装置， 基于从叶片顶部位置识别装置输出的叶片顶部位置识别信号，基于非接触位移传感器和涡轮机动叶片的顶部位置之间的距离15的时间变化来计算涡轮机动叶片的振动振幅和振动频率 。