公开(公告)号：US5523725A

公开(公告)日：1996-06-04

申请号：US395762

申请日：1995-02-28

申请人： Youhei Ishikawa ,  Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Shinichiro Ichiguchi ,  Toshihito Umegaki ,  Toshihiro Nomoto

发明人： Youhei Ishikawa ,  Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Shinichiro Ichiguchi ,  Toshihito Umegaki ,  Toshihiro Nomoto

IPC分类号： H01P1/23 ,  H03H2/00 ,  H04B1/10

CPC分类号： H03H2/001 ,  H01P1/23

摘要： A signal-to-noise enhancer 10 includes a first 90 degree hybrid set 20. A first output end of the first 90 degree hybrid set 20 is connected to an input end of a limiter used a magnetostatic wave element 62a utilized the magnetostatic surface wave mode. Also, a second output end of the first 90 degree hybrid set 20 is connected to an input end of a filter used a magnetostatic wave element 62b similar to the magnetostatic wave element 62a in structure, via a resistor 32 as a first attenuator. Furthermore, an output end of the limiter is connected to a first input end of a second 90 degree hybrid set 40 via a resistor 52 as a second attenuator. Also, an output end of the filter is connected to a second input end of the second 90 degree hybrid set 40.

摘要翻译： 信号噪声增强器10包括第一90度混合组20.第一90度混合组20的第一输出端连接到限幅器的输入端，使用静磁波元件62a，利用静磁表面波模式 。 此外，第一90度混合组20的第二输出端通过作为第一衰减器的电阻器32连接到使用类似于静磁波元件62a的静磁波元件62a的滤波器的输入端。 此外，限幅器的输出端通过作为第二衰减器的电阻器52连接到第二90度混合组40的第一输入端。 此外，滤波器的输出端连接到第二90度混合组40的第二输入端。

公开(公告)号：US5663698A

公开(公告)日：1997-09-02

申请号：US352260

申请日：1994-12-08

申请人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Shinichiro Ichiguchi

发明人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Shinichiro Ichiguchi

IPC分类号： H01P1/215 ,  H03H2/00

CPC分类号： H03H2/001

摘要： A magnetostatic wave device includes a dielectric substrate. Micro strip lines as transducers are formed by forming a ground electrode and strip-line electrodes, on both surfaces of the dielectric substrate. A ferrimagnetic base material formed with a GGG substrate and a YIG thin film on the GGG substrate is arranged on the strip-line electrodes. The ferrimagnetic base material is formed so that the end portions slant from the strip-line electrodes outwardly. The length of the ferrimagnetic base material is established to provide a minimum value.

摘要翻译： 静磁波装置包括电介质基片。 作为换能器的微带线通过在电介质基板的两个表面上形成接地电极和带状线电极而形成。 在GGG基板上形成有GGG基板和YIG薄膜的铁磁性基材配置在带状电极上。 形成铁氧体基材，使得端部从带状电极向外倾斜。 建立铁氧体磁性基材的长度以提供最小值。

公开(公告)号：US5923228A

公开(公告)日：1999-07-13

申请号：US812691

申请日：1997-03-06

申请人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Akira Toba ,  Toshihiro Nomoto

发明人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya ,  Akira Toba ,  Toshihiro Nomoto

IPC分类号： H01P1/215 ,  H01P1/23 ,  H03H2/00 ,  H04B3/03

CPC分类号： H03H2/001

摘要： An S/N enhancer is provided which can be formed to be small in size and in which impedance matching can easily be achieved. The S/N enhancer includes two magnetostatic wave elements. First to fourth transducers each in the shape of a single line are disposed on YIG thin films of the magnetostatic wave elements in parallel and spaced from one another. An input terminal is connected to one end of the first transducer. An attenuator is connected between the other end of the first transducer and one end of the third transducer. A 180.degree. shifter and another attenuator are connected in series between one end of the second transducer and one end of the fourth transducer. An output terminal is connected to the other end of the fourth transducer. The other ends of the second and third transducers are respectively grounded.

摘要翻译： 提供了可以形成为尺寸小并且可以容易地实现阻抗匹配的S / N增强器。 S / N增强器包括两个静磁波元件。 以单线形状的第一至第四换能器彼此并联并且彼此间隔开地设置在静磁波元件的YIG薄膜上。 输入端子连接到第一换能器的一端。 衰减器连接在第一换能器的另一端和第三换能器的一端之间。 180度移位器和另一衰减器串联连接在第二换能器的一端和第四换能器的一端之间。 输出端子连接到第四换能器的另一端。 第二和第三换能器的另一端分别接地。

公开(公告)号：US5283541A

公开(公告)日：1994-02-01

申请号：US857197

申请日：1992-03-25

申请人： Takekazu Okada ,  Satoru Shinmura ,  Yasuhide Kamado ,  Fumio Kanaya

发明人： Takekazu Okada ,  Satoru Shinmura ,  Yasuhide Kamado ,  Fumio Kanaya

IPC分类号： H03H2/00 ,  H03H7/00 ,  H05K5/02

CPC分类号： H03H2/001

摘要： The magnetostatic wave device 10 includes a holder 12 made of synthetic resin. The holder 12 is provided with a number of recesses 14, 16, 22a, 22b, 24a and 24b. In the holder 12, a magnet 30 is housed in the recess 14, and a YIG element 32 as a ferromagnetic element is housed in the recess 16, and transducers 34a and 34b are housed in the recesses 22a, 22b, 24a and 24b.

摘要翻译： 静磁波装置10包括由合成树脂制成的支架12。 保持器12设置有多个凹部14,16，22a，22b，24a和24b。 在保持器12中，磁体30容纳在凹部14中，作为铁磁性元件的YIG元件32容纳在凹部16中，换能器34a，34b容纳在凹部22a，22b，24a，24b中。

公开(公告)号：US5781079A

公开(公告)日：1998-07-14

申请号：US559446

申请日：1995-11-15

申请人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya

发明人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya

IPC分类号： H03H2/00 ,  H01P1/215

CPC分类号： H03H2/001

摘要： A compact, low-cost magnetostatic wave device which can serve as an S/N enhancer or a filter. The magnetostatic wave device includes a ferromagnetic base; at least one transducer having a portion arranged adjacent to one surface of the ferromagnetic base and another. portion arranged adjacent to the other surface of the ferromagnetic base; an input terminal with one side connected to one end of the transducer and the other side grounded; and an output terminal with one side connected to the other end of the transducer and the other side grounded. The ferromagnetic base is preferably disk-shaped.

摘要翻译： 可用作S / N增强器或滤波器的紧凑型低成本静磁波器件。 静磁波装置包括铁磁基座; 至少一个换能器具有邻近铁磁性基底的一个表面设置的部分和另一个。 邻近铁磁性基底的另一表面布置的部分; 输入端子，其一侧连接到换能器的一端，另一侧接地; 以及输出端子，其一侧连接到换能器的另一端，另一侧接地。 铁磁性基底优选为盘状。

公开(公告)号：US5345204A

公开(公告)日：1994-09-06

申请号：US14433

申请日：1993-02-05

申请人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya

发明人： Takekazu Okada ,  Satoru Shinmura ,  Fumio Kanaya

IPC分类号： H01P1/212 ,  H01P1/215 ,  H03H2/00

CPC分类号： H03H2/001

摘要： A magnetostatic wave resonator includes a YIG thin film. On one main surface of the YIG thin film, three circular conductors having different radii are disposed on concentric circles whose centers are the center of the YIG thin film. Furthermore, on the YIG thin film, two transducers are disposed so as to intersect with each other at right angles at the center of the YIG thin film and to connect magnetically to the YIG thin film.

摘要翻译： 静磁波谐振器包括YIG薄膜。 在YIG薄膜的一个主表面上，具有不同半径的三个圆形导体设置在其中心为YIG薄膜中心的同心圆上。 此外，在YIG薄膜上，设置两个换能器以在YIG薄膜的中心处以直角彼此相交并且与YIG薄膜磁性连接。

公开(公告)号：US06181731B2

公开(公告)日：2001-01-30

申请号：US09020738

申请日：1998-02-09

申请人： Tetsuya Kochi ,  Fumio Kanaya ,  Hiroaki Tanaka

发明人： Tetsuya Kochi ,  Fumio Kanaya ,  Hiroaki Tanaka

IPC分类号： H04L2730

CPC分类号： H04B1/69

摘要： The invention provides a small-sized low-cost spread spectrum communication device including a narrow-band interference signal elimination circuit capable of covering all the frequency band of a spread signal. A spread signal is received by an antenna and supplied to a level detection circuit via a variable amplifier and a divider. The level detection circuit controls the variable amplifier so that the spread signal is amplified to a fixed level. The signal containing a narrow-band interfering signal is then passed through a plurality of magnetostatic filters connected in series such that the saturation level thereof successively decreases, thereby limiting the narrow-band interfering signal having a level greater than the level of the spread signal in a step-by-step fashion. Thus, the narrow-band interfering signal contained in the spread signal is limited to a low level without encountering a significantly large incidental reduction in the spread signal. The narrow-band interference signal elimination circuit according to the invention may be realized in the form of a small size.

摘要翻译： 本发明提供一种小型低成本扩频通信装置，其包括能够覆盖扩展信号的全部频带的窄带干扰信号消除电路。 扩频信号由天线接收并通过可变放大器和分频器提供给电平检测电路。 电平检测电路控制可变放大器，使得扩展信号被放大到固定电平。 然后，包含窄带干扰信号的信号通过串联连接的多个静磁滤波器，使得其饱和电平连续降低，由此限制窄带干扰信号的电平大于扩展信号的电平 一步一步的时尚。 因此，包含在扩展信号中的窄带干扰信号被限制在低电平，而不会在扩展信号中遇到显着大的偶然的减小。 根据本发明的窄带干扰信号消除电路可以以小尺寸的形式实现。

公开(公告)号：US4051530A

公开(公告)日：1977-09-27

申请号：US624021

申请日：1975-10-20

申请人： Hideo Kuroda ,  Fumio Kanaya

发明人： Hideo Kuroda ,  Fumio Kanaya

IPC分类号： G06T9/00 ,  H04N7/32 ,  H04N7/36 ,  H04N7/12

CPC分类号： H04N19/124 ,  H04N19/50 ,  H04N19/503

摘要： An input video signal is fed to a substracter wherein a difference is taken between the input and the output from a frame memory to provide a difference signal, the magnitude of which is controlled by a magnitude adjuster. The controlled output is then fed to a threshold circuit, from which a significant difference signal is derived which has a magnitude above a given level. The significant difference signal is quantized by an encoder into a code having a reduced number of bits as compared with the inputted significant difference signal. The quantized code is written into a buffer memory, and is read out therefrom at a uniform bit rate to a transmission line. A sum of a signal indicative of the representative level of the quantized code from the encoder and the output of the frame memory is formed in an adder, and the sum signal is written into the frame memory and read out subsequently or after one frame. The occupancy of the buffer memory is detected to provide a control over the magnitude adjuster in accordance with the detected value so as to prevent an overflow from the buffer memory. A signal to refresh the frame memory located on the receiving side is transmitted by writing the output of the adder into the buffer memory after switching from the output of the encoder to the output of the adder.

公开(公告)号：US4755797A

公开(公告)日：1988-07-05

申请号：US60676

申请日：1987-06-11

申请人： Fumio Kanaya

发明人： Fumio Kanaya

IPC分类号： G08B17/00 ,  G08B25/04 ,  G08B21/00

CPC分类号： G08B25/04

摘要： A fire alarm apparatus includes a fire receiver, a pair of transmission lines extending from the fire receiver, a series of nonpolar fire detectors connected to the transmission lines, and a terminating unit, connected to the end terminals of the transmission lines, the terminating unit having an impedance element including a polar element. Each fire detector includes polarity inverting circuitry which includes a limit switch, arranged at a socket portion of the detector, and having a switch lever which is actuated by the detector body engaging with the socket portion; and diodes for inverting the polarity of the pair of transmission lines in synchronism with actuation of the switch lever. The polarity of the transmission lines after a detector is inverted when a detector body is detached from that detector.

摘要翻译： 火灾报警装置包括火灾接收器，从火灾接收器延伸的一对传输线，连接到传输线的一系列非极性火灾探测器，以及连接到传输线的端部终端的终端单元 具有包括极性元件的阻抗元件。 每个火灾检测器包括极性反转电路，其包括布置在检测器的插座部分处的限位开关，并且具有由检测器主体与插座部分接合而致动的开关杆; 以及用于与开关杆的致动同步地反转一对传输线的极性的二极管。 当检测器主体与该检测器分离时，检测器之后的传输线的极性反转。

公开(公告)号：US4047221A

公开(公告)日：1977-09-06

申请号：US728082

申请日：1976-09-30

申请人： Hiroshi Yasuda ,  Fumio Kanaya

发明人： Hiroshi Yasuda ,  Fumio Kanaya

IPC分类号： H04J3/00 ,  H04N19/50 ,  H04N7/12

CPC分类号： H04N19/80 ,  H04N19/152 ,  H04N19/50

摘要： In interframe coding apparatus in which an input signal is encoded by an interframe coder and its output code is written in a buffer memory, and is read out therefrom at a constant bit rate, a variable characteristics comb filter is provided at a stage preceding the interframe coder. The period of the frequency characteristics of the comb filter is selected to be the frame period of the input signal. By a controller, the occupancy of the buffer memory is detected to control either one or both of the attenuation in the elimination band and high frequency cut-off characteristics of the comb filter detected value to prevent an overflow from the buffer memory.

摘要翻译： 在帧间编码装置中，输入信号由帧间编码器编码并将其输出码写入缓冲存储器，并以恒定的比特率从其读出，在帧间的前一级提供可变特性梳状滤波器 编码器 梳状滤波器的频率特性的周期被选择为输入信号的帧周期。 通过控制器，检测缓冲存储器的占用，以控制消除频带中的衰减和梳状滤波器检测值的高频截止特性中的一个或两个，以防止从缓冲存储器溢出。