利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.019 秒)

    Orthogonal frequency division multiplexing transmission system and transmitter and receiver adapted to the same
    1.
    发明授权
    Orthogonal frequency division multiplexing transmission system and transmitter and receiver adapted to the same 失效
    正交频分复用传输系统和发射机和接收机适应相同

    公开(公告)号：US5818813A

    公开(公告)日：1998-10-06

    申请号：US707077

    申请日：1996-09-03

    申请人： Masafumi Saito ,  Tetsuomi Ikeda

    发明人： Masafumi Saito ,  Tetsuomi Ikeda

    IPC分类号： H04N7/08 ,  H04J11/00 ,  H04L27/26 ,  H04N7/081

    CPC分类号： H04L5/0048 ,  H04L27/2607 ,  H04L5/0007

    摘要： Data sequences correspond to L different parameter sets (effective symbol length, guard interval length, the number of carrier waves) and transformed into parallel data by respective serial/parallel converters, which are allocated to respective carrier waves for OFDM and subjected to inverse discrete Fourier transform by inverse discrete Fourier transformers to produce sampled values for the transmission waveform in the time domain. The sampled values are transformed into serial sequences of sampled values by parallel/serial converters and then into a single temporal sampling sequence by a temporal sampling sequence switching unit. A frame synchronizing symbol is added to the temporal sampling sequence and then transformed into an analog base band OFDM signal before it is converted up to a transmission signal. The frequency bandwidth of the OFDM signal is made smaller than a predetermined value defined by the bandwidth of the available transmission channel. As a result, an OFDM signal that can be received well regardless of the mode of reception can be transmitted.

    摘要翻译： 数据序列对应于L个不同的参数集（有效符号长度，保护间隔长度，载波数），并由相应的串行/并行转换器转换成并行数据，分配给OFDM的相应载波，并进行离散傅里叶反相 由离散傅里叶逆变换器进行变换，以产生时域中的传输波形的采样值。 采样值通过并行/串行转换器转换成采样值的串行序列，然后由时间采样序列切换单元转换成单个时间采样序列。 将帧同步符号添加到时间采样序列，然后在将其转换为传输信号之前变换为模拟基带OFDM信号。 使OFDM信号的频带宽度小于由可用传输信道的带宽定义的预定值。 结果，可以发送无论接收方式如何能够良好地接收的OFDM信号。

    Method for producing ring core
    3.
    发明授权
    Method for producing ring core 有权
    环芯生产方法

    公开(公告)号：US08127429B2

    公开(公告)日：2012-03-06

    申请号：US12516125

    申请日：2007-10-19

    申请人： Masafumi Saito ,  Tetsuo Suzuki ,  Naoya Saruhashi

    发明人： Masafumi Saito ,  Tetsuo Suzuki ,  Naoya Saruhashi

    IPC分类号： H02K15/00

    CPC分类号： H02K15/03 ,  B21D28/22 ,  H02K1/276 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/53143

    摘要： A method for producing a ring core having a plurality of separate core plates with lobes defined on an inner circumferential surface thereof, the separate core plates being arranged and stacked in a ring-shaped pattern. The method includes the steps of supporting the separate core plates with either one of an inner guide member being disposed radially inwardly of the separate core plates stacked in the ring-shaped pattern and an outer guide member disposed radially outwardly of the separate core plates, and applying a pressure from the other of the inner guide member and the outer guide member, wherein the inner guide member has recesses corresponding to the lobes for positioning and supporting the lobes, and stacking the separate core plates in the ring-shaped pattern to form the ring core, while rotating the separate core plates in unison through a predetermined angle with the inner and outer guide members.

    摘要翻译： 一种环芯的制造方法，其具有在其内周面上形成有多个具有裂片的分离芯板，所述分离芯板以环状图案布置和堆叠。 该方法包括以下步骤：支撑分离的芯板，其中内引导构件中的任一个设置在层叠在环形图案中的分离芯板的径向内侧，以及设置在分离的芯板的径向外侧的外引导构件，以及 从内引导构件和外引导构件中的另一个施加压力，其中内引导构件具有对应于凸角的凹槽，用于定位和支撑凸角，并将分离的芯板堆叠成环形图案，以形成 同时使分离的芯板与内部和外部引导构件一致地旋转预定的角度。

    Display film
    4.
    发明授权
    Display film 失效
    显示电影

    公开(公告)号：US06830835B2

    公开(公告)日：2004-12-14

    申请号：US10666627

    申请日：2003-09-18

    申请人： Masafumi Saito ,  Hideki Yaguchi

    发明人： Masafumi Saito ,  Hideki Yaguchi

    IPC分类号： B32B1900

    CPC分类号： G09F13/20 ,  Y10S428/913 ,  Y10T428/24868

    摘要： A display film is capable of displaying different images between under a condition with luminous source and under a condition with a luminous source in a small space and capable of clear display by emission under a condition without a luminous source. The display film comprises: a first display layer which has a phosphorescent agent 5 or a shade agent 6 on at least a part of a surface of an opaque and nonporous substrate sheet 4 composed of a phosphorescent material as necessary and on which a first image 10 visible under a condition without a luminous source, a second display layer including a porous sheet 7 having a plurality of pores, which is disposed on the first display layer 1 in a condition such that the second display layer 2 partially conceals the first image 10 and on which a second image 11 visible under a luminous source is formed on the other hand, and a transparent protective layer disposed on the second display layer 2.

    摘要翻译： 显示膜能够在具有发光源的条件下和在小空间中具有发光源的条件下显示不同的图像，并且能够在没有光源的条件下通过发射而清晰显示。 显示膜包括：第一显示层，其在根据需要由磷光材料构成的不透明和无孔基材片4的表面的至少一部分上具有磷光剂5或遮光剂6，并且其上具有第一图像10 在没有光源的条件下可见的第二显示层，包括具有多个孔的多孔片7，第二显示层设置在第一显示层1上，使得第二显示层2部分地隐藏第一图像10和 另一方面，在其上形成在光源下可见的第二图像11和设置在第二显示层2上的透明保护层。

    AFC in OFDM modulation by shift of a window along a reception sample sequence
    5.
    发明授权
    AFC in OFDM modulation by shift of a window along a reception sample sequence 失效
    AFC通过沿着接收采样序列移动窗口进行OFDM调制

    公开(公告)号：US5596582A

    公开(公告)日：1997-01-21

    申请号：US450540

    申请日：1995-05-25

    申请人： Toru Sato ,  Masafumi Saito

    发明人： Toru Sato ,  Masafumi Saito

    IPC分类号： H03L7/00 ,  H04J11/00 ,  H04L27/26 ,  H04J3/06

    CPC分类号： H04L27/2657 ,  H04L27/2675

    摘要： In a receiver for an OFDM modulated transmission signal including at least one synchronizing symbol in each frame, the synchronizing symbol is located by stepwise shifting a window along a reception sample sequence to make a cross-correlation calculator (55) calculate cross-correlation values between a stored pattern produced from a pattern memory (53) and sequence portions picked up by the window, a maximum selector (57, 59) select two successive maxima of the cross-correlation values at a time interval substantially equal to a frame period, and a controllable clock generator (61-65) generate a clock sequence at the time interval for use in sampling the sample sequence. On a transmitter side, the at least one synchronizing symbol may either be preceded by a null period or be a main synchronizing symbol preceded by an auxiliary synchronizing symbol for use in roughly defining ranges in which the window should be shifted.

    摘要翻译： 在包括每个帧中的至少一个同步符号的OFDM调制传输信号的接收机中，通过沿接收采样序列逐步移位窗口来定位同步符号，以使互相关计算器（55）计算互相关值 从模式存储器（53）产生的存储模式和由窗口拾取的序列部分，最大选择器（57,59）在基本上等于帧周期的时间间隔选择互相关值的两个连续最大值，以及 可控时钟发生器（61-65）在采样序列的时间间隔产生时钟序列。 在发射机侧，所述至少一个同步符号可以在空周期前面，或者是在辅助同步符号之前的主同步符号，用于大致定义窗口应该移位的范围。

    LAMINATED BODY MANUFACTURING APPARATUS, AND LAMINATED BODY MANUFACTURING METHOD
    6.
    发明申请
    LAMINATED BODY MANUFACTURING APPARATUS, AND LAMINATED BODY MANUFACTURING METHOD 有权
    层压体制造装置和层压体制造方法

    公开(公告)号：US20130160622A1

    公开(公告)日：2013-06-27

    申请号：US13821140

    申请日：2011-09-28

    申请人： Hideki Shigematsu ,  Ugeun Shin ,  Fumio Takeshima ,  Kuniaki Akutsu ,  Masafumi Saito ,  Ken Harada ,  Naoki Yamamoto

    发明人： Hideki Shigematsu ,  Ugeun Shin ,  Fumio Takeshima ,  Kuniaki Akutsu ,  Masafumi Saito ,  Ken Harada ,  Naoki Yamamoto

    IPC分类号： B21D28/02

    CPC分类号： H02K15/024 ,  Y10T83/0448

    摘要： A laminated body manufacturing apparatus for manufacturing an annular laminated body in which each layer is defined by a plurality of segments is provided with a feeding unit that sequentially feeds a plurality of parts to be processed on a band-like sheet material to a predetermined processing position; a processing unit that separates the segment from each part to be processed by a shearing processing in the processing position; and a laminating unit that receives the segment that is separated and lowered onto the plurality of segments that are lowered and defining one layer in advance and that rotates the received segment by a predetermined angle in a circumferential direction of the segment, each time when the shearing processing is performed, so as to place the sequentially lowered segment in a position to define the laminated body.

    摘要翻译： 一种用于制造每个层由多个段限定的环状层叠体的层叠体制造装置设置有馈送单元，其将多个待处理部分以带状片材顺序地馈送到预定的处理位置 ; 处理单元，其通过处理位置中的剪切处理将所述段与要处理的每个部分分离; 以及层叠单元，其接收分离和降低到下降的多个段上并且预先限定一层的段，并且使得接收的段在段的圆周方向上旋转预定角度，每次当剪切时 进行处理，以便将顺序降低的片段放置在限定层叠体的位置。

    Method and apparatus for digital signal transmission using orthogonal frequency division multiplexing
    8.
    发明授权
    Method and apparatus for digital signal transmission using orthogonal frequency division multiplexing 失效
    使用正交频分复用的数字信号传输方法和装置

    公开(公告)号：US5406551A

    公开(公告)日：1995-04-11

    申请号：US9819

    申请日：1993-01-27

    申请人： Masafumi Saito ,  Toru Kuroda ,  Shigeki Moriyama ,  Tomohiro Saito ,  Masayuki Takada ,  Osamu Yamada

    发明人： Masafumi Saito ,  Toru Kuroda ,  Shigeki Moriyama ,  Tomohiro Saito ,  Masayuki Takada ,  Osamu Yamada

    IPC分类号： H04J1/20 ,  H04J11/00 ,  H04J99/00 ,  H04L27/26

    CPC分类号： H04L27/2613 ,  H04L27/2657 ,  H04L27/34 ,  H04L27/2662 ,  H04L27/2675 ,  H04L5/0007 ,  H04L5/0048

    摘要： A digital signal transmission using OFDM modulation scheme in which the valid transmission data can be reproduced without requiring a recovery of the carriers at a receiver side. On a transmitter side, the transmission data sequence in which predetermined reference data for each carrier are placed among valid transmission data is modulated according to an orthogonal frequency division multiplexing (OFDM) modulation scheme using a plurality of carriers and obtained OFDM transmission signals are transmitted. On a receiver side, the received OFDM transmission signals are demodulated to obtain received data sequence containing valid received data and received reference data, and the valid transmission data are estimated from the received data sequence according to the valid received data, the received reference data, and the predetermined reference data for each carrier.

    摘要翻译： 使用OFDM调制方式的数字信号传输，其中可以再现有效的传输数据，而不需要在接收机侧恢复载波。 在发送机侧，根据使用多个载波的正交频分复用（OFDM）调制方式对传输数据序列中的每个载波的预定参考数据放置在有效发送数据之间进行发送，并且获得OFDM传输信号。 在接收机侧，接收到的OFDM传输信号被解调，以获得包含有效接收数据和接收到的参考数据的接收数据序列，并且根据接收到的数据序列根据接收到的有效数据，接收的参考数据， 和每个载波的预定参考数据。

    DEVICE FOR PRODUCING RING CORE, METHOD FOR PRODUCING RING CORE AND RING CORE PRODUCED BY THAT METHOD
    10.
    发明申请
    DEVICE FOR PRODUCING RING CORE, METHOD FOR PRODUCING RING CORE AND RING CORE PRODUCED BY THAT METHOD 有权
    用于生产环芯的装置，用于生产环芯的方法和通过该方法生产的环芯

    公开(公告)号：US20100052463A1

    公开(公告)日：2010-03-04

    申请号：US12516125

    申请日：2007-10-19

    申请人： Masafumi Saito ,  Tetsuo Suzuki ,  Naoya Saruhashi

    发明人： Masafumi Saito ,  Tetsuo Suzuki ,  Naoya Saruhashi

    IPC分类号： H02K1/00 ,  H02K15/00

    CPC分类号： H02K15/03 ,  B21D28/22 ,  H02K1/276 ,  Y10T29/49009 ,  Y10T29/49011 ,  Y10T29/49012 ,  Y10T29/53143

    摘要： In the device for producing a ring core, a drop-through blanking die (46) constituting a rotor core production line (30) is used to mold a ring core by laminating a plurality of split core plates (12, 16) while arranging them in a ring shape. The drop-through blanking die (46) consists of a rotary mechanism (55) for rotating the split core plates (12, 16) thus laminated through a predetermined angle, an inner guide member (62) being arranged on the inner circumferential side of the split core plates (12, 16) laminated in a ring shape, and an outer guide member (58) being arranged on the outer circumferential side of the split core plates (12, 16). While the split core plates (12, 16) are supported by any one of the inner guide member (62) and the outer guide member (58), a pressure is imparted to the split core plates (12, 16) by the other.

    摘要翻译： 在用于制造环形芯的装置中，构成转子芯线生产线（30）的直通冲切模（46）用于通过层叠多个分裂铁芯板（12,16）来模制环芯，同时将它们排列 环形。 直通冲裁模具（46）由旋转机构（55）构成，该旋转机构（55）用于使由此层叠的预定角度的分割芯板（12,16）旋转，内部引导构件（62）布置在 以环状层叠的分割型芯板（12,16）和配置在分割型芯板（12,16）的外周侧的外侧导向部件（58）。 当分裂芯板（12,16）由内引导构件（62）和外引导构件（58）中的任一个支撑时，分开的芯板（12,16）被施加压力。