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1. 发明授权

US06226319B1 Spread spectrum demodulation circuit, spread spectrum communication apparatus, delay-detection-type demodulation circuit, and delay-detection-type communication apparatus 失效
标题翻译：扩频解调电路，扩频通信装置，延迟检测型解调电路和延迟检测型通信装置
公开(公告)号：US06226319B1
公开(公告)日：2001-05-01
申请号：US09152512
申请日：1998-09-14
申请人： Masatoshi Ohtsuka , Naoki Koga
发明人： Masatoshi Ohtsuka , Naoki Koga
IPC分类号： H04B1707
CPC分类号： H04B1/707 , H04B2201/70707
摘要： A spread spectrum demodulation circuit includes a correlation signal generator which generates a correlation signal from a reception signal to which a quadrature phase shift keying and a spread spectrum modulation are performed. First and second delay elements have different delay times, and delay the correlation signal to obtain first and second delay signals, respectively. First and second adders add the correlation signal and the first and second delay signals to obtain first and second addition signals, respectively. First and second distributors distribute the first and second addition signals, respectively. First and second multiplication circuits obtain first and second multiplication signals from distributed signals inputted from the first and second distributors, respectively. A data demodulation circuit demodulates the first and second multiplication signals to recover a transmission information signal.
摘要翻译：扩频解调电路包括相关信号发生器，其从执行正交相移键控和扩频调制的接收信号产生相关信号。第一和第二延迟元件具有不同的延迟时间，并且延迟相关信号以分别获得第一和第二延迟信号。第一和第二加法器分别添加相关信号和第一和第二延迟信号以获得第一和第二加法信号。第一和第二分配器分别分配第一和第二加法信号。第一和第二乘法电路分别从分别从第一和第二分配器输入的分布式信号获得第一和第二乘法信号。数据解调电路解调第一和第二相乘信号以恢复发送信息信号。

2. 发明授权

US6078608A Spread spectrum communication apparatus, surface acoustic wave device, and surface acoustic wave part 失效
标题翻译：扩频通信装置，表面声波装置和表面声波部分
公开(公告)号：US6078608A
公开(公告)日：2000-06-20
申请号：US908426
申请日：1997-08-07
申请人： Masatoshi Ohtsuka , Naoki Koga
发明人： Masatoshi Ohtsuka , Naoki Koga
IPC分类号： H03H9/42 , H04B1/69 , H04B1/707 , H04L27/22 , H04B15/00 , H04K1/00 , H04L27/30
CPC分类号： H04B1/70712
摘要： A spread spectrum communication apparatus employs a surface acoustic wave matched filter and surface acoustic wave delay lines which enables the demodulation in accordance with the QPSK scheme. A SS demodulator has a correlated signal acquisition circuit for demodulating a received SS signal to acquire a correlated signal, first and second delay circuits for delaying an output signal from the correlated signal acquisition circuit, and first and second adder circuits for adding the output signal of the correlated signal acquisition circuit and respective outputs of the first and second delay circuits. The first delay circuit delays the input signal by T+(.+-.n+5.times.a/8)/fc, while the second delay circuit delays the input signal by T+(.+-.m-5.times.a/8)/fc. Thereby, a spread spectrum communication apparatus which enables the demodulation in accordance with the QPSK scheme by a simple configuration using a surface acoustic wave matched filter and surface acoustic wave delay lines is provided.
摘要翻译：扩频通信装置采用表面声波匹配滤波器和能够根据QPSK方案的解调的声表面波延迟线。 SS解调器具有用于解调所接收的SS信号以获取相关信号的相关信号获取电路，用于延迟来自相关信号获取电路的输出信号的第一和第二延迟电路以及用于将来自相关信号获取电路的输出信号相加的第一和第二加法器电路所述相关信号采集电路和所述第一和第二延迟电路的相应输出。第一延迟电路将输入信号延迟T +（+/- n + 5xa / 8）/ fc，而第二延迟电路将输入信号延迟T +（+/- m-5xa / 8）/ fc。因此，提供了一种能够通过使用表面声波匹配滤波器和表面声波延迟线的简单配置来实现根据QPSK方案的解调的扩展频谱通信装置。

3. 发明授权

US06265807B1 Spread spectrum communication apparatus, and demodulator, surface acoustic wave element and surface acoustic wave parts for spread spectrum communication 失效
标题翻译：扩频通信装置，解调器，表面声波元件和表面声波部分进行扩频通信
公开(公告)号：US06265807B1
公开(公告)日：2001-07-24
申请号：US09266003
申请日：1999-03-11
申请人： Naoki Koga , Masatoshi Ohtsuka , Seishi Tomari
发明人： Naoki Koga , Masatoshi Ohtsuka , Seishi Tomari
IPC分类号： H03H925
CPC分类号： H04B1/70712 , H03H9/02622 , H03H9/02779 , H03H9/6416 , H03H9/72
摘要： A spread spectrum communication apparatus includes at least one surface acoustic wave matched filter, a plurality of surface acoustic wave delay lines having different delay amounts, and integrating circuits for integrating an output signal of the surface acoustic wave matched filter and the respective output signals of the plurality of surface acoustic wave delay lines.
摘要翻译：扩展频谱通信装置包括至少一个表面声波匹配滤波器，具有不同延迟量的多个表面声波延迟线，以及用于对声表面波匹配滤波器的输出信号和各声道输出信号进行积分的积分电路多个表面声波延迟线。

4. 发明授权

US5909461A Spread spectrum communication apparatus and demodulator surface acoustic wave element and surface acoustic wave parts for spread spectrum communication 失效
标题翻译：扩频通信装置和解调器表面声波元件和表面声波部分进行扩频通信
公开(公告)号：US5909461A
公开(公告)日：1999-06-01
申请号：US677957
申请日：1996-07-10
申请人： Naoki Koga , Masatoshi Ohtsuka , Seishi Tomari
发明人： Naoki Koga , Masatoshi Ohtsuka , Seishi Tomari
IPC分类号： H03H9/02 , H03H9/42 , H03H9/64 , H04B1/707 , H03H9/00
CPC分类号： H04B1/70712 , H03H9/02779 , H03H9/6416 , H03H9/72 , H03H9/02622
摘要： A spread spectrum communication apparatus includes at least one surface acoustic wave matched filter, a plurality of surface acoustic wave delay lines having different delay amounts, and integrating circuits for integrating an output signal of the surface acoustic wave matched filter and the respective output signals of the plurality of surface acoustic wave delay lines.
摘要翻译：扩展频谱通信装置包括至少一个表面声波匹配滤波器，具有不同延迟量的多个表面声波延迟线，以及用于对声表面波匹配滤波器的输出信号和各声道输出信号进行积分的积分电路多个表面声波延迟线。

5. 发明授权

US06631276B1 Base unit of radio terminal 失效
标题翻译：无线电终端基地单位
公开(公告)号：US06631276B1
公开(公告)日：2003-10-07
申请号：US09644552
申请日：2000-08-24
申请人： Takashi Yamaguchi , Hideyuki Furukawa , Osamu Nakashima , Naoki Koga
发明人： Takashi Yamaguchi , Hideyuki Furukawa , Osamu Nakashima , Naoki Koga
IPC分类号： H04B138
CPC分类号： H01Q1/088 , H01Q1/241 , H01Q1/244
摘要： A base unit accommodates a radio terminal for making radio communications. This base unit has a recess for accommodating part of the radio terminal formed at least in two mutually orthogonal planes of the base unit body. An opening is formed at the inner side of the recess. Inside the base unit, a connector electrically connects and fixes the radio terminal. A rear part of the radio terminal is inserted through the opening. The base unit includes a lid for shielding the entire recess. The base unit body may include an external antenna connected to a cable having a terminal for connecting with an external antenna terminal provided in the radio terminal. This terminal may be disposed at a position corresponding to the external antenna terminal of the radio terminal of the lid. The base unit design is improved, invasion of foreign matter is prevented, and the radio reaching distance and directivity of the base unit are enhanced.
摘要翻译：基地单元容纳用于进行无线电通信的无线电终端。该基座单元具有用于容纳形成在基座单元主体的至少两个相互正交的平面中的无线电终端的部分的凹部。在凹部的内侧形成开口。在基座单元内，连接器电连接并固定无线电终端。无线电终端的后部通过开口插入。基座单元包括用于屏蔽整个凹部的盖子。基座单元主体可以包括连接到具有用于与设置在无线终端中的外部天线端子连接的终端的电缆的外部天线。该终端可以设置在与盖的无线终端的外部天线端子对应的位置。改进了基本单元设计，防止异物入侵，提高了基站的无线电达到距离和方向性。

6. 发明授权

US06570772B2 Portable terminal device 失效
公开(公告)号：US06570772B2
公开(公告)日：2003-05-27
申请号：US09860917
申请日：2001-05-18
申请人： Kazumi Kawano , Takashi Yamaguchi , Naoki Koga
发明人： Kazumi Kawano , Takashi Yamaguchi , Naoki Koga
IPC分类号： H05K504
CPC分类号： H05K7/1461
摘要： A portable terminal device having: a circuit board having electronic component mounted thereon; a frame for receiving said circuit board therein; a reinforcement member in contact with the frame and for reinforcing the frame; and a cover fitted to the frame. For the device, improvement in the rigidity of the frame can prevent its breakage and resulting kinks or bends of the circuit board, and thus improve reliability of the microconnection between the electronic component and circuit board.

7. 发明申请

US20110017183A1 TWO-STROKE INTERNAL COMBUSTION ENGINE 有权
标题翻译：两冲程内燃机
公开(公告)号：US20110017183A1
公开(公告)日：2011-01-27
申请号：US12842682
申请日：2010-07-23
申请人： Naoki Koga , Shirou Yamaguchi , Ken Shirai , Daisuke Yamada
发明人： Naoki Koga , Shirou Yamaguchi , Ken Shirai , Daisuke Yamada
IPC分类号： F02B25/14
CPC分类号： F02B25/14 , F02B33/04 , F02B33/44 , F02B2075/025
摘要： There is provided a reverse scavenged two-stroke internal combustion engine that is capable of effectively suppressing the short-circuiting of fresh charge (unburnt air-fuel mixture), while at the same time being capable of further improving scavenging efficiency, combustion efficiency, etc. The horizontal sectional shape of at least one pair of scavenging passages (31, 31 and 32, 32) is closer to a triangle than a parallelogram along substantially the entire lengths of the at least one pair of scavenging passages, where a cylinder outer circumferential side of the horizontal sectional shape is narrowest and a cylinder bore wall surface (10a) side of the horizontal sectional shape is wide. Further, horizontal scavenging angles (α, β), which are angles of intersection formed between lines (Ea, Ea and Eb, Eb) extended towards an intake port (33) from guide wall surfaces (31c, 31c and 32c, 32c) that define the scavenging passages (31, 31 and 32, 32), are acute.
摘要翻译：提供了能够有效地抑制新鲜空气（未燃烧空气 - 燃料混合物）短路的反向扫气二冲程内燃机，同时能够进一步提高清除效率，燃烧效率等。至少一对扫气通道（31,31,32,32）的水平截面形状比沿着至少一对扫气通道的整个长度的平行四边形更靠近三角形，其中气缸外圆周水平剖面形状的一侧最窄，水平剖面形状的气缸孔壁面（10a）侧宽。此外，作为从引导壁面（31c，31c，32c，32c）向进气口（33）延伸的线（Ea，Ea，Eb，Eb）之间的交点角度的水平扫掠角（α，bgr）定义扫气通道（31,31,32,32）是尖锐的。

8. 发明申请

US20060092965A1 Information terminal and information terminal system 有权
公开(公告)号：US20060092965A1
公开(公告)日：2006-05-04
申请号：US11282493
申请日：2005-01-18
申请人： Tomiya Miyazaki , Yutaka Takeda , Kazuo Yahiro , Takuji Tsujigawa , Naoki Koga , Keisuke Ogata , Akitoshi Aritaka
发明人： Tomiya Miyazaki , Yutaka Takeda , Kazuo Yahiro , Takuji Tsujigawa , Naoki Koga , Keisuke Ogata , Akitoshi Aritaka
IPC分类号： H04L12/413 , H04J1/00
CPC分类号： H04B3/54 , H04B2203/5416 , H04B2203/5445 , H04B2203/545 , H04M1/723 , H04M11/062
摘要： An information terminal incorporates a network interface and an extension interface, and in the case of outside call, an audio send signal is modulated into an audio signal frequency band, and sent to the exchange through a private telephone line and a subscriber's line by way of the network interface. An audio receive signal sent from the exchange through the subscriber's line and private telephone line is demodulated into an ordinary audio frequency band through the network interface. On the other hand, in the case of extension service, an audio send signal is converted into a packetized digital signal by an extension interface circuit, and is further modulated into a higher frequency band so as not to overlap with the audio signal frequency band, and is transmitted through the private telephone line.

9. 发明授权

US06737166B2 Sanitary ware 失效
标题翻译：卫生洁具
公开(公告)号：US06737166B2
公开(公告)日：2004-05-18
申请号：US10240790
申请日：2002-10-04
申请人： Naoki Koga , Hidemi Ishikawa , Ryosuke Kato , Atsushi Yoshida
发明人： Naoki Koga , Hidemi Ishikawa , Ryosuke Kato , Atsushi Yoshida
IPC分类号： B32B1706
CPC分类号： C04B41/009 , C03C14/006 , C04B33/13 , C04B41/5022 , C04B41/86 , C04B2235/3217 , C04B2235/3418 , C04B2235/3463 , C04B2235/349 , C04B2235/77 , C04B2235/80 , C04B33/00
摘要： The present invention provides the sanitary ware for which it is possible to accurately design the shapes and dimensions of the products after being subjected to firing while maintaining the mechanical strength required to sanitary ware, degradation of the process yield caused by shrinkage and deformation scarcely occurs, and the setting efficiency and productivity are improved as compared to the prior art. The sanitary ware of the present invention is the sanitary ware which includes a ceramic body and a glaze layer formed on the desired portions of the body surface, and is characterized in that the CaO component segregation portions in which portions the CaO component is segregated are dispersed in the body.
摘要翻译：本发明提供一种能够在保持卫生洁具所需的机械强度的同时进行焙烧后，准确地设计产品的形状和尺寸的卫生洁具，几乎不发生收缩和变形引起的加工收率的降低，与现有技术相比，提高了设定效率和生产率。本发明的卫生洁具是包含陶瓷体和形成在体表的所需部分上的釉层的卫生洁具，其特征在于CaO成分分离部分分散的CaO成分偏析部分分散在身上。

10. 发明授权

US5600518A Magnetoresistive head having a stepped magnetoresistive film element 失效
标题翻译：磁阻头具有阶梯式磁阻膜元件
公开(公告)号：US5600518A
公开(公告)日：1997-02-04
申请号：US216387
申请日：1994-03-23
申请人： Naoki Koga
发明人： Naoki Koga
IPC分类号： G11B5/39
CPC分类号： G11B5/398 , G11B5/3903 , G11B5/399
摘要： A magnetoresistive head for use in, for example, a magnetic recording/reproducing device such as a magnetic disc unit is provided. This magnetoresistive head includes a substrate, a magnetoresistive element film, first and second antiferromagnetic films, and a first and second lead layers mounted on the first and second antiferromagnetic films for supplying a sense current to the magnetoresistive element film. The magnetoresistive element film includes first and second stepped side portions each having a thickness smaller than that of a central portion of the magnetoresistive element film which defines a reproducing section. The first and second antiferromagnetic films are formed on the first and second stepped side portions of said magnetoresistive element film. With these arrangements, the Barkhausen noise is reduced greatly while maintaining a reproduced output voltage at a desired level.
摘要翻译：提供了用于例如磁记录/再现装置如磁盘单元的磁阻头。该磁阻头包括衬底，磁阻元件膜，第一和第二反铁磁膜，以及安装在第一和第二反铁磁膜上的第一和第二引线层，用于向磁阻元件膜提供感测电流。磁阻元件膜包括第一和第二台阶侧部分，每一个具有比限定再现部分的磁阻元件膜的中心部分的厚度小的厚度。第一和第二反铁磁膜形成在所述磁阻元件膜的第一和第二阶梯侧部分上。通过这些布置，巴克豪森噪声大大降低，同时将再现的输出电压保持在期望的水平。

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