专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5962950A Compact surface acoustic wave apparatus, spread spectrum signal receiver using the same apparatus for reception of spread spectrum signal, and spread spectrum signal communication system using the same spread spectrum signal receiver 失效
标题翻译：紧凑声表面波装置，使用与扩频信号接收相同的装置的扩频信号接收机以及使用同一扩频信号接收机的扩频信号通信系统
公开(公告)号：US5962950A
公开(公告)日：1999-10-05
申请号：US630779
申请日：1996-04-10
申请人： Koichi Egara , Akira Torisawa , Tadashi Eguchi , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
发明人： Koichi Egara , Akira Torisawa , Tadashi Eguchi , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
IPC分类号： H03H9/145 , G06G7/195 , H03H9/25 , H03H9/72 , H04B1/709 , H04J13/00 , H01L41/08
CPC分类号： H04B1/70712 , G06G7/195
摘要： In a surface acoustic wave apparatus, a surface acoustic wave element for obtaining a convolution signal is housed in a recess of a substrate. Since the surface acoustic wave element is housed in the recess of the substrate in this surface acoustic wave apparatus, the apparatus can be compactified. This effect of compactification is remarkable, because the surface acoustic wave element has an output electrode for obtaining the convolution signal and thus originally has a big element size. When a laminate substrate is used as the substrate, a configuration for effectively using surfaces of respective layers may be arranged in such a manner that output wiring of the convolution signal is separately formed in the layers. This further enhances the effect of compactification. There are further disclosed a spread spectrum signal receiver using the above surface acoustic wave apparatus for receiving a spread spectrum signal, and a spread spectrum communication system using the spread spectrum signal receiver.
摘要翻译：在表面声波装置中，用于获得卷积信号的表面声波元件容纳在基板的凹部中。由于表面声波元件容纳在该声表面波装置中的基板的凹部中，所以能够使装置紧凑化。由于表面声波元件具有用于获得卷积信号的输出电极，因此原本具有大的元件尺寸，因此这种紧凑化的效果是显着的。当层叠基板用作基板时，可以以这样的方式布置用于有效地使用各层的表面的构造，即在层中分别形成卷积信号的输出布线。这进一步增强了压实效果。还公开了使用上述用于接收扩展频谱信号的声表面波装置的扩频信号接收机和使用该扩频信号接收机的扩频通信系统。

2. 发明授权

US5815055A Matched filter with improved synchronous characteristics, and reception device and communication system using the same 失效
标题翻译：具有改善的同步特性的匹配滤波器，以及使用其的接收装置和通信系统
公开(公告)号：US5815055A
公开(公告)日：1998-09-29
申请号：US681331
申请日：1996-07-23
申请人： Tadashi Eguchi , Akira Torisawa , Koichi Egara , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
发明人： Tadashi Eguchi , Akira Torisawa , Koichi Egara , Akihiro Koyama , Takahiro Hachisu , Akane Yokota
IPC分类号： H03H9/145 , H03H9/25 , H03H9/42 , H03H9/64 , H04B1/707 , H04B1/7093 , H04B1/69
CPC分类号： H03H9/6406
摘要： A matched filter has an input IDT and an output IDT, and also has a device for preventing propagating surface acoustic waves from diverging. By preventing the divergence of surface acoustic waves, signals obtained in units of electrode finger pairs of the output IDT are uniformed. Furthermore, this application also discloses the following arrangement. That is, an arrangement for converging surface acoustic waves is adopted, and the width of surface acoustic waves input to the output IDT is set to be larger than at least the crossing width of electrode fingers, nearest to the input IDT, of those of the output IDT, so that some surface acoustic waves propagate along non-crossing portions of the electrode fingers, on the input IDT side, of those of the output IDT. With this arrangement, the influence of the crossing portions of the electrode fingers, closer to the input IDT, on the surface acoustic waves input to the crossing portions of the electrode fingers, farther from the input IDT, can be relaxed.
摘要翻译：匹配滤波器具有输入IDT和输出IDT，并且还具有用于防止传播表面声波发散的装置。通过防止表面声波的发散，以输出IDT的电极指对为单位获得的信号是均匀的。此外，本申请还公开了以下配置。也就是说，采用用于会聚表面声波的布置，并且输入到输出IDT的表面声波的宽度被设定为大于至少与最接近输入IDT的电极指的交叉宽度输出IDT，使得一些表面声波沿着输出IDT侧的电极指的非交叉部分传播。通过这种布置，可以放宽输入到距输入IDT更远的电极指的交叉部分的声表面波的电极指的交叉部分更靠近输入IDT的影响。

3. 发明授权

US6020672A Surface acoustic wave converter with improved frequency characteristics, surface acoustic wave device using such converter, and communication system using such device 失效
标题翻译：具有改善频率特性的表面声波转换器，使用这种转换器的表面声波装置，以及使用这种装置的通信系统
公开(公告)号：US6020672A
公开(公告)日：2000-02-01
申请号：US711000
申请日：1996-09-26
申请人： Akane Yokota , Akira Torisawa , Koichi Egara , Tadashi Eguchi , Akihiro Koyama , Takahiro Hachisu
发明人： Akane Yokota , Akira Torisawa , Koichi Egara , Tadashi Eguchi , Akihiro Koyama , Takahiro Hachisu
IPC分类号： H03H9/145 , H03H9/25 , H03H9/72 , H04B1/709 , H04J13/00 , H03B19/00
CPC分类号： H03H9/14502 , H04B1/70712
摘要： A surface acoustic wave converter for converting an electric signal into a surface acoustic wave includes an interdigital transducer provided on a piezoelectric substrate. The interdigital transducer has first and second electrode groups each having one or more electrode fingers to which a first signal is almost simultaneously inputted. The surface acoustic wave converters includes first input unit for inputting the first signal to the one or more electrode fingers of the first electrode group, and second input unit for inputting the first signal to the one or more electrode fingers of the second electrode group when at least one of surface acoustic waves excited by the first signal in the one or more electrode fingers of the first electrode group reaches one of the one or more electrode fingers of the second electrode group.
摘要翻译：用于将电信号转换为声表面波的表面声波转换器包括设置在压电基板上的叉指式换能器。叉指换能器具有第一和第二电极组，每个电极组具有一个或多个电极指，几乎同时输入第一信号。表面声波转换器包括用于将第一信号输入到第一电极组的一个或多个电极指的第一输入单元和用于在第二电极组中的第一电极组的一个或多个电极指的第一信号输入的第二输入单元由第一电极组的一个或多个电极指中的第一信号激发的表面声波中的至少一个到达第二电极组的一个或多个电极指中的一个。

4. 发明授权

US5708402A Surface acoustic wave device improved in convolution efficiency, receiver using it, communication system using it, and method for producing surface acoustic wave device improved in convoluting efficiency 失效
标题翻译：表面声波装置提高了卷积效率，使用接收机，使用它的通信系统以及提高卷积效率的表面声波装置的制造方法
公开(公告)号：US5708402A
公开(公告)日：1998-01-13
申请号：US534174
申请日：1995-09-26
申请人： Takahiro Hachisu , Norihiro Mochizuki , Koichi Egara , Tadashi Eguchi , Akihiro Koyama , Akane Yokota
发明人： Takahiro Hachisu , Norihiro Mochizuki , Koichi Egara , Tadashi Eguchi , Akihiro Koyama , Akane Yokota
IPC分类号： H03H3/08 , G06G7/195 , H03H9/25 , H03H9/72 , H04B1/69 , H04B1/707 , H03H9/64
CPC分类号： G06G7/195
摘要： A surface acoustic wave device includes a substrate having piezoelectricity, at least two input electrodes, provided on the substrate, for exciting first and second surface acoustic waves, and an output electrode for taking a convolution signal of the two surface acoustic waves out. The substrate has a roughness configuration on a back face thereof and a maximum depth of the roughness configuration is not less than a wavelength of bulk waves of convolution output taken out of the output electrode.
摘要翻译：表面声波装置包括具有压电性的基板，设置在基板上的用于激励第一和第二声表面波的至少两个输入电极，以及用于取出两个表面声波的卷积信号的输出电极。基板的背面具有粗糙结构，粗糙结构的最大深度不小于从输出电极取出的卷积输出的体波波长。

5. 发明授权

US5717274A Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same 失效
公开(公告)号：US5717274A
公开(公告)日：1998-02-10
申请号：US791069
申请日：1997-01-29
申请人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
发明人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
IPC分类号： G06G7/195 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/14547 , G06G7/195 , H03H9/02748 , H03H9/02787 , H03H9/14555 , H03H9/14561 , H03H9/14564 , H03H9/14567 , H03H9/6406 , H03H9/14505 , H03H9/14508 , H03H9/1455 , H03H9/14552
摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.

6. 发明授权

US5477098A Efficient surface acoustic wave device capable of excitation in plural frequency bands, and signal receiver and communication system utilizing the same 失效
标题翻译：能够在多个频带中激发的高效表面声波装置，以及使用该频率的信号接收机和通信系统
公开(公告)号：US5477098A
公开(公告)日：1995-12-19
申请号：US250901
申请日：1994-05-31
申请人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
发明人： Tadashi Eguchi , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Akihiro Koyama , Takahiro Hachisu
IPC分类号： G06G7/195 , H03H9/145 , H03H9/64 , H03H9/72
CPC分类号： H03H9/14547 , G06G7/195 , H03H9/02748 , H03H9/02787 , H03H9/14555 , H03H9/14561 , H03H9/14564 , H03H9/14567 , H03H9/6406 , H03H9/14505 , H03H9/14508 , H03H9/1455 , H03H9/14552
摘要： A surface acoustic wave device includes a piezoelectric substrate, a wave guide path provided on the piezoelectric substrate and an interdigital transducer for exciting a surface acoustic wave. The interdigital transducer is provided with plural portions of mutually different pitches of the electrode finger, respectively corresponding to different frequencies. The portions are parallelly arranged along a direction perpendicular to the propagation direction of the surface acoustic wave. The surface acoustic wave generated by the interdigital transducer is entered in concentrated manner into the wave guide path.
摘要翻译：表面声波装置包括压电基板，设置在压电基板上的波导路径和用于激励表面声波的叉指式换能器。叉指式换能器具有分别对应不同频率的电极指的相互不同间距的多个部分。这些部分沿着与声表面波的传播方向垂直的方向平行布置。由叉指式换能器产生的表面声波以集中的方式输入波导路径。

7. 发明授权

US5760525A Surface acoustic wave device and communication system using it 失效
标题翻译：声表面波装置及其使用的通信系统
公开(公告)号：US5760525A
公开(公告)日：1998-06-02
申请号：US681493
申请日：1996-07-23
申请人： Takahiro Hachisu , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Tadashi Eguchi , Akihiro Koyama
发明人： Takahiro Hachisu , Akira Torisawa , Norihiro Mochizuki , Koichi Egara , Tadashi Eguchi , Akihiro Koyama
IPC分类号： H03H9/72 , G06G7/195 , H03H9/145 , H04B1/26 , H01L41/08
CPC分类号： H03H9/02787 , G06G7/195 , H03H9/14547 , H03H9/14561 , H04B1/26
摘要： A surface acoustic wave device includes a piezoelectric substrate, first and second input transducers formed on the substrate and adapted for respectively generating surface acoustic waves corresponding to input signals, the first and second input transducers each having a shape to focus the surface acoustic waves generated thereby, an output transducer formed between the first and second input transducers on the substrate and adapted for obtaining a convolution -signal of the surface acoustic waves generated by the first and second input transducers, and conductive films, one formed between the first input transducer and the output transducer and another between the second input transducer and the output transducer on the substrate. A communication system includes a transmitter for transmitting a signal modulated according to information, a circuit for receiving the modulated signal transmitted from the transmitter, a circuit for generating a reference signal, a surface acoustic wave device, as described above, for outputting a convolution signal of the modulated signal and the reference signal, and a demodulating circuit for restoring the information, using the convolution signal output from the surface acoustic wave device.
摘要翻译：表面声波装置包括压电基片，形成在基片上的第一和第二输入换能器，用于分别产生对应于输入信号的表面声波，第一和第二输入换能器各自具有聚焦由此产生的表面声波的形状形成在基板上的第一和第二输入换能器之间的输出换能器，并适于获得由第一和第二输入换能器产生的表面声波的卷积信号，以及形成在第一输入换能器和输出换能器和另一个在第二输入换能器和基板上的输出换能器之间。一种通信系统，包括用于发送根据信息调制的信号的发射机，用于接收从发射机发射的调制信号的电路，用于产生参考信号的电路，如上所述的表面声波装置，用于输出卷积信号的调制信号和参考信号，以及解调电路，用于使用从声表面波装置输出的卷积信号来恢复信息。

8. 发明授权

US08575050B2 Glass composition, glass substrate for flat panel display using the same, flat panel display, and method for producing glass substrate for flat panel display 有权
标题翻译：玻璃组合物，使用其的平板显示器用玻璃基板，平板显示器以及用于制造平板显示器用玻璃基板的方法
公开(公告)号：US08575050B2
公开(公告)日：2013-11-05
申请号：US12969080
申请日：2010-12-15
申请人： Akihiro Koyama , Mikiko Hashimoto
发明人： Akihiro Koyama , Mikiko Hashimoto
IPC分类号： C03C3/091
CPC分类号： C03C3/091
摘要： Provided is a glass composition suitable for a glass substrate for a flat panel display such as a liquid crystal display. This glass composition has high thermal stability, and is substantially free of BaO but has a low devitrification temperature. It is suitable for the production of a glass substrate by a downdraw process. This glass composition contains, in terms of mass %; 54 to 62% of SiO2; 4 to 11% of B2O3; 15 to 20% of Al2O3; 2 to 5% of MgO; 0 to 7% of CaO; 0 to 13.5% of SrO; 0 to 1% of K2O; 0 to 1% of SnO2; and 0 to 0.2% of Fe2O3, and is substantially free of BaO. In this glass composition, the total content of alkaline earth metal oxides (MgO+CaO+SrO) is 10 to 18.5 mass %. The devitrification temperature of the glass composition is 1200° C. or lower.
摘要翻译：提供一种适用于液晶显示器等平板显示器的玻璃基板的玻璃组合物。该玻璃组合物具有高的热稳定性，并且基本上不含BaO但具有低失透温度。适用于通过下拉工艺生产玻璃基板。该玻璃组合物以质量％计含有 54〜62％的SiO2; 4〜11％的B2O3; 15〜20％的Al2O3; 2〜5％的MgO; 0〜7％的CaO; 0〜13.5％的SrO; 0〜1％K2O; 0〜1％的SnO2; 和0〜0.2％的Fe 2 O 3，并且基本上不含BaO。在该玻璃组合物中，碱土类金属氧化物（MgO + CaO + SrO）的总含量为10〜18.5质量％。玻璃组合物的失透温度为1200℃以下。

9. 发明授权

US08383532B2 Glass flake 有权
标题翻译：玻璃片
公开(公告)号：US08383532B2
公开(公告)日：2013-02-26
申请号：US12305850
申请日：2007-06-21
申请人： Kosuke Fujiwara , Akihiro Koyama , Koichi Sakaguchi
发明人： Kosuke Fujiwara , Akihiro Koyama , Koichi Sakaguchi
IPC分类号： C03C3/087 , C09C1/28 , C09D11/00 , C08K3/22 , C08K3/34 , A61K33/08
CPC分类号： A61K8/25 , A61K8/0254 , A61K8/26 , A61K2800/43 , A61K2800/621 , A61K2800/651 , A61Q1/02 , C03C3/087 , C03C12/00 , C08K3/40 , C08K9/02 , C09D7/61 , C09D7/62 , C09D11/037 , Y10T428/2982 , Y10T428/2993
摘要： The glass flake of the present invention has a composition that includes, in terms of mass %, 60
摘要翻译：本发明的玻璃薄片的组成按照质量％计包含60

10. 发明申请

US20090181843A1 Glass Article and Method of Producing the Same 失效
标题翻译：玻璃制品及其制造方法
公开(公告)号：US20090181843A1
公开(公告)日：2009-07-16
申请号：US12084072
申请日：2006-10-31
申请人： Hiromitsu Seto , Akihiro Koyama , Yukihito Nagashima
发明人： Hiromitsu Seto , Akihiro Koyama , Yukihito Nagashima
IPC分类号： C03C3/095
CPC分类号： C03C3/087 , C03C4/02 , Y10T428/315
摘要： The present invention provides a glass article using a glass composition including a base glass composition and colorants. The base glass composition includes, expressed in mass %: 65 to 80% of SiO2; 0 to 5% of Al2O3; 0 to 10% of MgO; 0 to 15% of CaO; 5 to 15% of MgO+CaO; 10 to 18% of Na2O; 0 to 5% of K2O; 10 to 20% of Na2O+K2O; and 0 to 5% of B2O3, and the colorants consist essentially of, expressed in mass %: 0.6% to 1.0% of T-Fe2O3; 0.026 to 0.8% of TiO2; 0 to 2.0% of CeO2; 0.01 to 0.03% of CoO; 0 to 0.0008% of Se; and 0.06 to 0.20% of NiO. The glass article has a grayish color tone, and has a visible light transmittance in a range of 15% to 40%, which is measured with the illuminant A at a thickness of 3.1 mm.
摘要翻译：本发明提供一种使用玻璃组合物的玻璃制品，所述玻璃组合物包括基础玻璃组合物和着色剂。基础玻璃组成包括以质量％表示：65〜80％的SiO 2; 0〜5％的Al2O3; 0〜10％的MgO; 0〜15％的CaO; 5〜15％的MgO + CaO; 10〜18％的Na2O; 0〜5％K2O; 10-20％Na2O + K2O; 和0〜5％的B2O3，着色剂基本上由质量％表示：0.6％〜1.0％的T-Fe2O3; 0.026〜0.8％的TiO2; 0〜2.0％的CeO2; 0.01〜0.03％的CoO; 0〜0.0008％的Se; 和0.06〜0.20％的NiO。玻璃制品具有灰色色调，并且具有15％至40％范围内的可见光透射率，其以3.1mm的厚度用光源A测量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式