公开(公告)号：US07079878B2

公开(公告)日：2006-07-18

申请号：US10761328

申请日：2004-01-22

申请人： Noriaki Odachi ,  Syuichi Sekine

发明人： Noriaki Odachi ,  Syuichi Sekine

IPC分类号： H04M1/00

CPC分类号： H01Q1/244 ,  H01Q1/242

摘要： A portable radio terminal comprises a housing, a radio circuit included in the housing, a matching circuit mounted on the top of the housing at a position which is offset from the longitudinal center line of the housing, a load connected to the tip of the matching circuit, and a linear antenna connected to the load. This portable radio terminal further comprises load changing means for changing the value of the load. The matching circuit may comprise a meander matching element, a zigzag-shaped matching element, a helical matching element, a conical matching element, a rectangular helical matching element or a pyramid helical matching element which are formed so as to a predetermined shape, such as a meander shape, a zigzag shape, a helical shape, a conical shape, a rectangular helical shape or pyramid helical shape. Thus, even if the terminal is held in a user's left or right hand, it is possible to increase the quantity of radiation of vertically polarized waves, so that it is possible to provide the optimum antenna construction to carry out good radio communication.

摘要翻译： 便携式无线电终端包括壳体，包括在壳体中的无线电电路，匹配电路，其在与壳体的纵向中心线偏移的位置处安装在壳体的顶部，负载连接到匹配的尖端 电路和连接到负载的线性天线。 该便携式无线电终端还包括用于改变负载值的负载改变装置。 匹配电路可以包括形成为预定形状的曲折匹配元件，之字形匹配元件，螺旋匹配元件，锥形匹配元件，矩形螺旋匹配元件或棱锥形螺旋匹配元件，例如 曲折形状，曲折形状，螺旋形状，圆锥形，矩形螺旋形或棱锥形螺旋形状。 因此，即使终端被保持在用户的左手或右手中，也可以增加垂直极化波的辐射量，从而可以提供最佳的天线结构来进行良好的无线电通信。

公开(公告)号：US06911944B2

公开(公告)日：2005-06-28

申请号：US10690587

申请日：2003-10-23

申请人： Syuichi Sekine ,  Takayoshi Ito ,  Yasushi Murakami ,  Hiroki Shoki

发明人： Syuichi Sekine ,  Takayoshi Ito ,  Yasushi Murakami ,  Hiroki Shoki

IPC分类号： H01Q13/08 ,  H01Q1/24 ,  H01Q5/10 ,  H01Q9/04 ,  H01Q9/42 ,  H01Q1/38

CPC分类号： H01Q9/0442 ,  H01Q1/243 ,  H01Q9/0421 ,  H01Q9/42

摘要： An antenna apparatus is constituted by first, second, third, and fourth wire antenna elements and a connection element. The sum of the lengths of the first, second, and fourth wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first, second, and fourth wire antenna elements. The sum of the lengths of the second, third, and fourth wire antenna elements is ½ the wavelength corresponding to a parallel-resonance frequency of the second, third, and fourth wire antenna elements. The sum of the lengths of the first and third wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first and third wire antenna elements. The parallel-resonance frequency is higher than the series-resonance frequency of the first, second, and fourth wire antenna elements and lower than the series-resonance frequency of the first and third wire antenna elements.

摘要翻译： 天线装置由第一，第二，第三和第四线天线元件和连接元件构成。 第一，第二和第四线状天线元件的长度之和为对应于第一，第二和第四线状天线元件的串联谐振频率的波长。 第二，第三和第四线状天线元件的长度之和为对应于第二，第三和第四线状天线元件的并联谐振频率的波长的1/2。 第一和第三线状天线元件的长度之和为对应于第一和第三线状天线元件的串联谐振频率的波长。 并联谐振频率高于第一，第二和第四线状天线元件的串联谐振频率，并且低于第一和第三线状天线元件的串联谐振频率。

公开(公告)号：US20050042994A1

公开(公告)日：2005-02-24

申请号：US10957624

申请日：2004-10-05

申请人： Shoji Otaka ,  Hiroshi Tsurumi ,  Hiroshi Yoshida ,  Syuichi Sekine ,  Hiroyuki Kayano ,  Tadahiko Maeda

发明人： Shoji Otaka ,  Hiroshi Tsurumi ,  Hiroshi Yoshida ,  Syuichi Sekine ,  Hiroyuki Kayano ,  Tadahiko Maeda

IPC分类号： H03J7/18 ,  H03L7/08 ,  H03L7/093 ,  H03L7/107 ,  H04B1/18 ,  H04B1/26 ,  H04B1/30 ,  H04B1/40 ,  H04B1/38

CPC分类号： H03D3/008 ,  H03F1/30 ,  H03F3/189 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/504 ,  H03G3/3042 ,  H03L7/107 ,  H04B1/18 ,  H04B1/28 ,  H04B1/30 ,  H04B1/403 ,  H04B1/405

摘要： In a radio apparatus, the band of a loop filter of a synthesizer in a blank channel searching state is narrower than the band in a communicating state. In addition, a radio wave environment is measured. A characteristic necessary for the radio apparatus is determined corresponding to the measured-radio wave environment. The power is controlled corresponding to the performance of the radio apparatus. Thus, the power consumption is decreased. In addition, the efficiency of the output power is improved. In the radio apparatus, the current consumption of a power amplifier PA is measured. A matching circuit (LNA or MIX) of the antenna is adjusted with the measured result so as to decrease an antenna loss. In the radio apparatus, a DC offset is removed from the transmitted power and the reflected wave. When the DC offset is removed using an AC coupling capacitor, the deterioration of the frequency characteristic of the receiving portion is compensated with a capacitor in a digital signal process. In the radio apparatus, a transmission power detecting portion is structured as an IC chip. The transmission power detecting portion detects the transmission power corresponding to leakage currents in the power supply of the IC chip and the ground. Thus, when the power is detected, a power loss is suppressed. Consequently, the power consumption of the radio apparatus can be decreased.

摘要翻译： 在无线电设备中，空白信道搜索状态的合成器的环路滤波器的频带比通信状态的频带窄。 另外，测量无线电波环境。 根据测量的无线电波环境确定无线电设备所需的特性。 根据无线电设备的性能来控制功率。 因此，功耗降低。 此外，输出功率的效率提高。 在无线电设备中，测量功率放大器PA的电流消耗。 利用测量结果调整天线的匹配电路（LNA或MIX），以减少天线损耗。 在无线电设备中，从发射功率和反射波中去除DC偏移。 当使用AC耦合电容器去除DC偏移时，在数字信号处理中用电容器补偿接收部分的频率特性的劣化。 在无线电设备中，传输功率检测部分被构造为IC芯片。 发送功率检测部分检测与IC芯片和地面的电源中的泄漏电流相对应的发送功率。 因此，当检测到电力时，功率损失被抑制。 因此，可以减少无线电设备的功耗。

公开(公告)号：US06388627B1

公开(公告)日：2002-05-14

申请号：US09716466

申请日：2000-11-21

申请人： Toshiyuki Masaki ,  Koichi Kobayashi ,  Yoshinori Horiguchi ,  Toshiki Miyasaka ,  Hiroki Iwahara ,  Syuichi Sekine

发明人： Toshiyuki Masaki ,  Koichi Kobayashi ,  Yoshinori Horiguchi ,  Toshiki Miyasaka ,  Hiroki Iwahara ,  Syuichi Sekine

IPC分类号： H01Q124

CPC分类号： H01Q1/2266 ,  H01Q1/22

摘要： An information processor includes a display case having a display panel therein. A antenna is disposed in an upper end of the display case opposite a hinge mechanism connecting the display case to a main body. The display case is movable between an open and a closed position. The antenna has radiation characteristics that provide reception and transmission capability when the display case is either in the open or closed position.

摘要翻译： 信息处理器包括其中具有显示面板的显示盒。 天线设置在显示器壳体的上端，与将显示器壳体连接到主体的铰链机构相对。 展示柜可在打开和关闭位置之间移动。 天线具有当展示柜处于打开或关闭位置时提供接收和传输能力的辐射特性。

公开(公告)号：US06346916B1

公开(公告)日：2002-02-12

申请号：US09512824

申请日：2000-02-25

申请人： Noriaki Odachi ,  Syuichi Sekine

发明人： Noriaki Odachi ,  Syuichi Sekine

IPC分类号： H01Q124

CPC分类号： H01Q1/243 ,  H01Q9/16

摘要： Antenna apparatus is comprised of dipole antenna arranged proximate to a surface of metal housing including radio device circuit and having two quarter wavelength elements having opposite end portions being feed points, short-circuit element short-circuiting the quarter wavelength elements, and coaxial feed line having outer conductor and central conductor having one ends connected to the feed points, respectively, and connecting the feed points to radio device circuit. The coaxial feed line is arranged along part of the quarter wavelength element and part of the short-circuit element and branched from central portion of the short-circuit element. The outer conductor is electrically connected to part of the quarter wavelength element and part of the short-circuit element. Currents leaked onto the feed line and flowing through the two quarter wavelength elements are also divided to the short-circuit element. The currents are mixed at a position at which the coaxial feed line is branched and flow into the outer conductor of the coaxial feed line as a leak current from the dipole antenna. The currents branched from the two quarter wavelength elements to the short-circuit element are almost opposite in phase to each other. Thus, the currents cancel each other and the leak current becomes zero.

摘要翻译： 天线装置包括靠近金属外壳的表面设置的偶极天线，包括无线电设备电路，并且具有两个四分之一波长元件，其两端具有馈电点，短路元件使四分之一波长元件短路，同轴馈线具有 外导体和中心导体，其一端分别连接到馈电点，并将馈电点连接到无线电设备电路。 同轴馈电线沿着四分之一波长元件的一部分和短路元件的一部分布置并且从短路元件的中心部分分支。 外部导体电连接到四分之一波长元件的一部分和短路元件的一部分。 泄漏到馈电线上并流过两个四分之一波长元件的电流也被划分为短路元件。 电流在同轴馈电线分支的位置处混合，并且作为来自偶极天线的泄漏电流流入同轴馈电线的外导体。 从两个四分之一波长元件分支到短路元件的电流几乎彼此相位相反。 因此，电流相互抵消，漏电流变为零。

公开(公告)号：US07489954B2

公开(公告)日：2009-02-10

申请号：US11867906

申请日：2007-10-05

申请人： Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Kiyoshi Toshimitsu ,  Tomoko Adachi ,  Tsuguhide Aoki ,  Ren Sakata ,  Ryoko Matsuo

发明人： Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Kiyoshi Toshimitsu ,  Tomoko Adachi ,  Tsuguhide Aoki ,  Ren Sakata ,  Ryoko Matsuo

IPC分类号： H04M1/00

CPC分类号： H04B7/082 ,  H04B7/0837

摘要： One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

摘要翻译： 根据本发明的无线通信装置的目的之一是无论接收的信号强度指示和信息量如何，都能实现稳定的通信。 用于在自主分布式无线网络中进行通信的无线通信装置包括：检测单元，其通过检测来自第一无线装置的第一无线信号来生成检测信号; 接收从接收到所述第一无线信号的第二无线装置发送的与所述第一无线信号有关的第二无线信号的无线电路; 信号估计单元，其估计所述检测信号和所接收的第二无线信号; 信号选择器，其基于所述信号估计单元的估计结果选择所述检测信号或所接收的第二无线信号; 以及解调器，其对由所述信号选择器选择的信号进行解调。

公开(公告)号：US07386329B2

公开(公告)日：2008-06-10

申请号：US10422699

申请日：2003-04-25

申请人： Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Kiyoshi Toshimitsu ,  Tomoko Adachi ,  Tsuguhide Aoki ,  Ren Sakata ,  Ryoko Matsuo

发明人： Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Kiyoshi Toshimitsu ,  Tomoko Adachi ,  Tsuguhide Aoki ,  Ren Sakata ,  Ryoko Matsuo

IPC分类号： H04M1/00

CPC分类号： H04B7/082 ,  H04B7/0837

摘要： One of objects of a wireless communication apparatus according to the present invention is to realize stable communication regardless of received signal strength indication and information amount. The wireless communication apparatus for communicating in an autonomous distributed wireless network includes a detection unit which generates a detection signal by detecting a first wireless signal from a first wireless apparatus; a wireless circuit which receives a second wireless signal relating to said first wireless signal, transmitted from a second wireless apparatus which received said first wireless signal; a signal estimation unit which estimates said detection signal and the received second wireless signal; a signal selector which selects either said detection signal or the received second wireless signal, based on an estimation result of said signal estimation unit; and a demodulator which demodulates the signal selected by said signal selector.

摘要翻译： 根据本发明的无线通信装置的目的之一是无论接收的信号强度指示和信息量如何，都能实现稳定的通信。 用于在自主分布式无线网络中进行通信的无线通信装置包括：检测单元，其通过检测来自第一无线装置的第一无线信号来生成检测信号; 接收从接收到所述第一无线信号的第二无线装置发送的与所述第一无线信号有关的第二无线信号的无线电路; 信号估计单元，其估计所述检测信号和所接收的第二无线信号; 信号选择器，其基于所述信号估计单元的估计结果选择所述检测信号或所接收的第二无线信号; 以及解调器，其对由所述信号选择器选择的信号进行解调。

公开(公告)号：US20070111673A1

公开(公告)日：2007-05-17

申请号：US11621148

申请日：2007-01-09

申请人： Shoji OTAKA ,  Hiroshi Tsurumi ,  Hiroshi Yoshida ,  Syuichi Sekine ,  Hiroyuki Kayano ,  Tadahiko Maeda

发明人： Shoji OTAKA ,  Hiroshi Tsurumi ,  Hiroshi Yoshida ,  Syuichi Sekine ,  Hiroyuki Kayano ,  Tadahiko Maeda

IPC分类号： H04B1/40 ,  H04B7/00

CPC分类号： H03D3/008 ,  H03F1/30 ,  H03F3/189 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/504 ,  H03G3/3042 ,  H03L7/107 ,  H04B1/18 ,  H04B1/28 ,  H04B1/30 ,  H04B1/403 ,  H04B1/405

摘要： In a radio apparatus, the band of a loop filter of a synthesizer in a blank channel searching state is narrower than the band in a communicating state. In addition, a radio wave environment is measured. A characteristic necessary for the radio apparatus is determined corresponding to the measured-radio wave environment. The power is controlled corresponding to the performance of the radio apparatus. Thus, the power consumption is decreased. In addition, the efficiency of the output power is improved. In the radio apparatus, the current consumption of a power amplifier PA is measured. A matching circuit (LNA or MIX) of the antenna is adjusted with the measured result so as to decrease an antenna loss. In the radio apparatus, a DC offset is removed from the transmitted power and the reflected wave. When the DC offset is removed using an AC coupling capacitor, the deterioration of the frequency characteristic of the receiving portion is compensated with a capacitor in a digital signal process. In the radio apparatus, a transmission power detecting portion is structured as an IC chip. The transmission power detecting portion detects the transmission power corresponding to leakage currents in the power supply of the IC chip and the ground. Thus, when the power is detected, a power loss is suppressed. Consequently, the power consumption of the radio apparatus can be decreased.

摘要翻译： 在无线电设备中，空白信道搜索状态的合成器的环路滤波器的频带比通信状态的频带窄。 另外，测量无线电波环境。 根据测量的无线电波环境确定无线电设备所需的特性。 根据无线电设备的性能来控制功率。 因此，功耗降低。 此外，输出功率的效率提高。 在无线电设备中，测量功率放大器PA的电流消耗。 利用测量结果调整天线的匹配电路（LNA或MIX），以减少天线损耗。 在无线电设备中，从发射功率和反射波中去除DC偏移。 当使用AC耦合电容器去除DC偏移时，在数字信号处理中用电容器补偿接收部分的频率特性的劣化。 在无线电设备中，传输功率检测部分被构造为IC芯片。 发送功率检测部分检测与IC芯片和地面的电源中的泄漏电流相对应的发送功率。 因此，当检测到电力时，功率损失被抑制。 因此，可以减少无线电设备的功耗。

公开(公告)号：US07194262B2

公开(公告)日：2007-03-20

申请号：US10440114

申请日：2003-05-19

申请人： Tsuguhide Aoki ,  Tomoko Adachi ,  Kiyoshi Toshimitsu ,  Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Ren Sakata

发明人： Tsuguhide Aoki ,  Tomoko Adachi ,  Kiyoshi Toshimitsu ,  Syuichi Sekine ,  Mutsumu Serizawa ,  Hiroki Shoki ,  Hiroshi Tsurumi ,  Shuichi Obayashi ,  Ren Sakata

IPC分类号： H04Q7/00

CPC分类号： H04W88/02 ,  Y02D70/00

摘要： An object of the present invention is to provide a wireless communication system, a wireless communication system, comprising: one or more wireless base station; and a plurality of wireless terminals capable of communicating with said wireless base station by wireless, two or more of said wireless terminals capable of communicating with each other by wireless thereby forming a wireless terminal group; wherein said wireless base station has a representative determination unit configured to determine at least one wireless terminal belonging to said wireless terminal group as a representative terminal; and said representative terminal receives first frames transmitted from other wireless terminals belonging to said wireless terminal group, and transmits the received first frames to said wireless base station.

摘要翻译： 本发明的目的是提供一种无线通信系统，一种无线通信系统，包括：一个或多个无线基站; 以及能够通过无线与所述无线基站通信的多个无线终端，能够通过无线进行通信的所述无线终端中的两个以上，从而形成无线终端组; 其中所述无线基站具有代表确定单元，被配置为将属于所述无线终端组的至少一个无线终端确定为代表性终端; 并且所述代表性终端接收从属于所述无线终端组的其他无线终端发送的第一帧，并将所接收的第一帧发送到所述无线基站。

公开(公告)号：US06683575B2

公开(公告)日：2004-01-27

申请号：US10188755

申请日：2002-07-05

申请人： Syuichi Sekine ,  Takayoshi Ito ,  Yasushi Murakami ,  Hiroki Shoki

发明人： Syuichi Sekine ,  Takayoshi Ito ,  Yasushi Murakami ,  Hiroki Shoki

IPC分类号： H01Q124

CPC分类号： H01Q9/0442 ,  H01Q1/243 ,  H01Q9/0421 ,  H01Q9/42

摘要： An antenna apparatus is constituted by first, second, third, and fourth wire antenna elements and a connection element. The sum of the lengths of the first, second, and fourth wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first, second, and fourth wire antenna elements. The sum of the lengths of the second, third, and fourth wire antenna elements is ½ the wavelength corresponding to a parallel-resonance frequency of the second, third, and fourth wire antenna elements. The sum of the lengths of the first and third wire antenna elements is ¼ the wavelength corresponding to a series-resonance frequency of the first and third wire antenna elements. The parallel-resonance frequency is higher than the series-resonance frequency of the first, second, and fourth wire antenna elements and lower than the series-resonance frequency of the first and third wire antenna elements.