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

US5917850A Spread spectrum receiving apparatus 失效
标题翻译：扩频接收装置
公开(公告)号：US5917850A
公开(公告)日：1999-06-29
申请号：US561278
申请日：1995-11-21
申请人： Takao Fujita , Toshihiko Myojo , Norihiro Mochizuki , Tadashi Eguchi , Rie Suzuki
发明人： Takao Fujita , Toshihiko Myojo , Norihiro Mochizuki , Tadashi Eguchi , Rie Suzuki
IPC分类号： H04B1/707 , H04B1/7075 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B1/7075 , H04B1/70712 , H04B2201/70707
摘要： A spread spectrum receiving apparatus is constructed by a generator for generating a reference clock, a phase shift circuit for shifting the phase of the reference clock generated by the generator in accordance with a code timing in a reception signal and the reference clock, and a de-spreading circuit for de-spreading the reception signal in accordance with the reference clock whose phase is shifted by the phase shift circuit. The de-spreading circuit generates a code for de-spreading in accordance with the phase shifted reference clock. The phase shift circuit has a calculator for calculating a phase shift amount so as to synchronize the code timing in the reception signal with the code for reception in accordance with a deviation between the code timing in the reception signal and the reference clock.
摘要翻译：扩频接收装置由用于产生参考时钟的发生器构成，相移电路用于根据接收信号和参考时钟中的码定时移位由发生器产生的参考时钟的相位，扩展电路，用于根据相移由相移电路的参考时钟来解扩接收信号。解扩电路根据相移参考时钟产生用于去扩展的码。相移电路具有用于计算相移量的计算器，以便根据接收信号中的码定时与参考时钟之间的偏差来同步接收信号中的码定时与接收码。

2. 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。

3. 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。

4. 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.

5. 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。

6. 发明授权

US08064874B2 Control station, controlling method thereof and storage media 有权
标题翻译：控制站及其控制方法和存储介质
公开(公告)号：US08064874B2
公开(公告)日：2011-11-22
申请号：US12273294
申请日：2008-11-18
申请人： Atsushi Takasaki , Tadashi Eguchi
发明人： Atsushi Takasaki , Tadashi Eguchi
IPC分类号： G06F15/16
CPC分类号： H04W72/10 , H04W52/0216 , H04W52/0219 , Y02D70/144
摘要： This invention has as its object to reduce power consumption of dependent stations with low frequency of communication by controlling communications of the control station in a network. According to this invention, a control station communicating with dependent stations comprises a classification unit configured to classify the dependent stations connected to the control station into a plurality of groups; a first transmission unit configured to transmit first broadcast-frame to the dependent stations classified into first group; and a second transmission unit configured to transmit second broadcast-frame to the dependent stations classified into second group with lower frequency of communication compared to the first group, wherein the second transmission unit transmits the second broadcast-frame with a lower transmitting frequency compared to the first broadcast-frame transmitting frequency of the first transmission unit.
摘要翻译：本发明的目的是通过控制网络中的控制站的通信来降低具有低通信频率的从属站的功率消耗。根据本发明，与从站通信的控制站包括：分类单元，被配置为将连接到控制站的从属站分为多个组; 第一发送单元，被配置为将第一广播帧发送到分类为第一组的从属站; 以及第二发送单元，被配置为将第二广播帧发送到与第一组相比分类为具有较低通信频率的第二组的从属站，其中第二传输单元以与第一组相比较较低的发送频率发送第二广播帧第一发送单元的第一广播帧发送频率。

7. 发明申请

US20080253354A1 COMMUNICATION APPARATUS, CONTROL METHOD FOR CONTROLLING COMMUNICATION APPARATUS, PROGRAM FOR CONTROLLING COMMUNICATION APPARATUS, AND STORAGE MEDIUM STORING SUCH PROGRAM 失效
标题翻译：通信装置，用于控制通信装置的控制方法，用于控制通信装置的程序和存储中继存储这样的程序
公开(公告)号：US20080253354A1
公开(公告)日：2008-10-16
申请号：US11847098
申请日：2007-08-29
申请人： Tadashi Eguchi
发明人： Tadashi Eguchi
IPC分类号： H04J3/06
CPC分类号： H04W56/00 , H04W52/0216 , H04W52/0219 , H04W52/029 , H04W84/18
摘要： A communication apparatus determines a hibernation period on the basis of the amount of an offset in beacon period start timing among multiple beacon groups. The communication apparatus is placed in a hibernation status in accordance with the determined hibernation period. Thus, an offset in beacon period start timing among the beacon groups that would occur while the device is in hibernation can be prevented and the need for merging beacon groups and decrease in data rate during such merging are prevented.
摘要翻译：通信装置基于多个信标组中的信标周期开始定时中的偏移量来确定休眠期间。通信装置根据所确定的休眠期被置于休眠状态。因此，可以防止在设备处于休眠状态时发生的信标组之间的信标周期开始定时的偏移，并且防止了在合并期间合并信标组和降低数据速率的需要。

8. 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。

9. 发明授权

US5568337A Head positioning using a disk drive mounted to a rotating table 失效
标题翻译：使用安装到旋转台的磁盘驱动器进行头定位
公开(公告)号：US5568337A
公开(公告)日：1996-10-22
申请号：US935927
申请日：1995-08-27
申请人： Tadashi Eguchi , Katsumi Momose , Hiroji Narumi , Tetsuharu Nishimura , Kotaro Hosaka , Masaaki Tsukiji , Koh Ishizuka
发明人： Tadashi Eguchi , Katsumi Momose , Hiroji Narumi , Tetsuharu Nishimura , Kotaro Hosaka , Masaaki Tsukiji , Koh Ishizuka
IPC分类号： G11B5/596 , G11B21/10 , C11B5/596
CPC分类号： G11B5/59677 , G11B21/106
摘要： A device for detecting the position of an information recording or reproducing head relative to a recording medium; the head is relatively rotatable around a first axis with respect to the recording medium, and rotatable around a second axis parallel to the first axis. The device includes an autocollimator for measuring a relative positional relationship of the head substantially along the direction of the rotation around the second axis, a rotating table on which either the combination of the recording medium and the head or the autocollimator is mounted to activate the rotational movement substantially around the second axis, and a control unit. The control unit rotates the rotating table in response to the obtained position of the head with respect to the recording medium. According to the measurement result by the autocollimator, the control unit accomplishes a relative positional controlling in which a relative positional relationship between the autocollimator and the head is kept constant. As a result, a compact and high-accuracy head positioning device is achieved.
摘要翻译：一种用于检测信息记录或再现头相对于记录介质的位置的装置; 头部相对于记录介质相对于第一轴线相对旋转，并且能够围绕平行于第一轴线的第二轴线旋转。该装置包括自动准直仪，用于基本上围绕第二轴线的旋转方向测量头部的相对位置关系;旋转台，其上安装有记录介质和头部或自动准直仪的组合以激活旋转基本上围绕第二轴线的运动，以及控制单元。控制单元响应于获得的头部相对于记录介质的位置旋转旋转台。根据自动准直仪的测量结果，控制单元实现自动准直仪和头部之间的相对位置关系保持恒定的相对位置控制。结果，实现了紧凑且高精度的头部定位装置。

10. 发明授权

US4686292A Benzo[.alpha.]phenazine antitumor agents 失效
标题翻译：苯并恶嗪类抗癌剂
公开(公告)号：US4686292A
公开(公告)日：1987-08-11
申请号：US838153
申请日：1986-03-10
申请人： Yoshihiro Migita , Tadashi Eguchi , Yukinari Kumazawa , Jozi Nakagami , Takehiro Amano , Kaoru Sota , Jinsaku Sakakibara
发明人： Yoshihiro Migita , Tadashi Eguchi , Yukinari Kumazawa , Jozi Nakagami , Takehiro Amano , Kaoru Sota , Jinsaku Sakakibara
IPC分类号： A61K31/495 , A61P35/00 , C07D241/38 , C07D241/46 , C07D401/06 , C07D403/06
CPC分类号： C07D241/38
摘要： Novel benzo[.alpha.]phenazine derivatives of the formula ##STR1## wherein R.sup.1 is hydrogen, halogen, methyl, hydroxyl or alkoxy, R.sup.2 is --COOR.sup.5 (wherein R.sup.5 is hydrogen, straight or branched chain alkyl, cycloalkyl having 3-6 carbon atoms, benzyl or phenyl) or ##STR2## wherein R.sup.6 and R.sup.7 are the same or different and are each hydrogen or lower alkyl, or R.sup.6 and R.sup.7 together with the nitrogen atom to which they are attached form pyrrolidine or piperidine), R.sup.3 and R.sup.4 are the same or different and are each hydrogen or lower alkyl, and n is an integer of 2 or 3, and the salts thereof are disclosed. These compounds have antitumor activity in mammals.
摘要翻译：式（I）的新的苯并[b]吩嗪衍生物其中R 1是氢，卤素，甲基，羟基或烷氧基，R 2是-COOR 5（其中R 5是氢，直链或支链烷基，具有3-6 碳原子，苄基或苯基）或其中R6和R7相同或不同并且各自为氢或低级烷基，或R6和R7与它们所连接的氮原子一起形成吡咯烷或哌啶），R3和 R4相同或不同，各自为氢或低级烷基，n为2或3的整数，并且其盐被公开。这些化合物在哺乳动物中具有抗肿瘤活性。

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