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41. 发明授权

US06806836B2 Helical antenna apparatus provided with two helical antenna elements, and radio communication apparatus provided with same helical antenna apparatus 失效
标题翻译：具有两个螺旋天线元件的螺旋天线装置，以及具有相同螺旋天线装置的无线通信装置
公开(公告)号：US06806836B2
公开(公告)日：2004-10-19
申请号：US10369754
申请日：2003-02-21
申请人： Koichi Ogawa , Hiroshi Iwai , Yoshio Koyanagi
发明人： Koichi Ogawa , Hiroshi Iwai , Yoshio Koyanagi
IPC分类号： H01Q124
CPC分类号： H01Q1/242 , H01Q1/362 , H01Q11/08
摘要： In a helical antenna apparatus, a first variable capacitance element is connected between a first helical antenna element and a second helical antenna element, and a second variable capacitance element is connected between a first terminal of a balanced port of a balanced to unbalanced transformer and the first helical antenna element. A third variable capacitance element is connected between a second terminal of the balanced port of the balanced to unbalanced transformer and the second helical antenna element. A detector measures a detection voltage Vd corresponding to a reflected power of a reflected signal reflected from the first and second helical antenna elements when the first and second helical antenna elements are fed with a transmission signal from a radio transmitter, and an adaptive controller adaptively controls respective capacitance values of the first to third variable capacitance elements.
摘要翻译：在螺旋天线装置中，第一可变电容元件连接在第一螺旋天线元件和第二螺旋天线元件之间，第二可变电容元件连接在平衡到不平衡变压器的平衡端口的第一端子和第一螺旋天线元件。第三可变电容元件连接在平衡到不平衡变压器的平衡端口的第二端子和第二螺旋天线元件之间。当第一和第二螺旋天线元件被馈送来自无线电发射机的发射信号时，检测器测量对应于从第一和第二螺旋天线元件反射的反射信号的反射功率的检测电压Vd，并且自适应控制器自适应地控制第一至第三可变电容元件的相应电容值。

42. 外观设计

USD490401S1 Antenna 失效
标题翻译：天线
公开(公告)号：USD490401S1
公开(公告)日：2004-05-25
申请号：US29179836
申请日：2003-04-14
申请人： Hiroshi Iwai , Koichi Ogawa
设计人： Hiroshi Iwai , Koichi Ogawa

43. 外观设计

USD502464S1 Antenna 失效
公开(公告)号：USD502464S1
公开(公告)日：2005-03-01
申请号：US29196841
申请日：2004-01-06
申请人： Hiroshi Iwai , Koichi Ogawa
设计人： Hiroshi Iwai , Koichi Ogawa

44. 外观设计

USD491557S1 Antenna 失效
公开(公告)号：USD491557S1
公开(公告)日：2004-06-15
申请号：US29179763
申请日：2003-04-14
申请人： Hiroshi Iwai , Koichi Ogawa
设计人： Hiroshi Iwai , Koichi Ogawa

45. 发明授权

US08754820B2 Antenna apparatus provided with electromagnetic coupling adjuster and antenna element excited through multiple feeding points 有权
标题翻译：具有电磁耦合调节器和天线元件的天线装置通过多个馈电点激励
公开(公告)号：US08754820B2
公开(公告)日：2014-06-17
申请号：US11951153
申请日：2007-12-05
申请人： Hiroshi Iwai , Atsushi Yamamoto , Tsutomu Sakata , Satoru Amari
发明人： Hiroshi Iwai , Atsushi Yamamoto , Tsutomu Sakata , Satoru Amari
IPC分类号： H01Q21/00 , H01Q1/24
CPC分类号： H01Q1/243 , H01Q3/2605 , H01Q3/28 , H01Q3/36 , H01Q9/04
摘要： An antenna apparatus includes a first feeding point and a second feeding point provided at respective positions on an antenna element. The antenna element is excited through the first and second feeding points simultaneously so as to operate as a first antenna portion and a second antenna portion simultaneously, the first antenna portion and the second antenna portion correspond to the first and second feeding points, respectively. The antenna element further includes, between the first and second feeding points, an electromagnetic coupling adjuster for making an amount of isolation between the first and second antenna portions.
摘要翻译：天线装置包括设置在天线元件上的各个位置的第一馈电点和第二馈电点。天线元件通过第一和第二馈电点同时激励，以便同时作为第一天线部分和第二天线部分工作，第一天线部分和第二天线部分别分别对应于第一和第二馈电点。天线元件还包括在第一和第二馈电点之间的用于在第一和第二天线部分之间形成隔离量的电磁耦合调节器。

46. 发明授权

US08200302B2 Mobile wireless communication apparatus having a plurality of antenna elements 有权
标题翻译：具有多个天线元件的移动无线通信装置
公开(公告)号：US08200302B2
公开(公告)日：2012-06-12
申请号：US12517316
申请日：2008-09-30
申请人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata , Yoshio Koyanagi , Toshiteru Hayashi
发明人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata , Yoshio Koyanagi , Toshiteru Hayashi
IPC分类号： H04M1/00
CPC分类号： H01Q1/243 , H01Q9/0421 , H01Q9/16 , H04M1/0216
摘要： A housing antenna is small enough in size so as to be accommodated in a mobile device. The antenna has a number of feeding points that allow the antenna to operate as a number of antenna elements. The antenna is capable of realizing high speed communication by increasing communication capacity.
摘要翻译：外壳天线的尺寸足够小，以便容纳在移动设备中。天线具有允许天线作为多个天线元件工作的多个馈电点。该天线能够通过增加通信能力来实现高速通信。

47. 发明授权

US08190104B2 MIMO antenna apparatus changing antenna elements based on transmission capacity 有权
标题翻译： MIMO天线装置根据传输容量改变天线元件
公开(公告)号：US08190104B2
公开(公告)日：2012-05-29
申请号：US12361770
申请日：2009-01-29
申请人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata , Yoshio Koyanagi , Toshiteru Hayashi
发明人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata , Yoshio Koyanagi , Toshiteru Hayashi
IPC分类号： H04B1/44
CPC分类号： H04B7/0808 , H04B7/0825 , H04B7/0831 , H04B7/0874
摘要： A controller of a MIMO antenna apparatus calculates a current transmission capacity based on signal levels detected by a signal level detector circuit. The controller calculates an estimated transmission capacity assuming that at least one of antenna elements currently connected to a MIMO modulator and demodulator circuit is changed to a further antenna element not connected to the MIMO modulator and demodulator circuit, based on the detected signal levels and degrees of electromagnetic coupling stored in a degree-of-coupling memory. The controller controls a switch circuit to connect the further antenna element to the MIMO modulator and demodulator circuit when the current transmission capacity becomes lower than the estimated transmission capacity.
摘要翻译： MIMO天线装置的控制器基于由信号电平检测器电路检测到的信号电平来计算当前传输容量。控制器计算估计的传输容量，假设当前连接到MIMO调制器和解调器电路的天线元件中的至少一个被改变为未连接到MIMO调制器和解调器电路的另外的天线元件，基于检测到的信号电平和存储在耦合度存储器中的电磁耦合。当当前传输容量变得低于估计的传输容量时，控制器控制开关电路将另外的天线元件连接到MIMO调制器和解调器电路。

48. 发明申请

US20100195753A1 MINO ANTENNA APPARATUS CAPABLE OF DIVERSITY RECEPTION USING ONE RADIATING CONDUCTOR 有权
标题翻译：使用一个放大导体进行多样化接收的MINO天线装置
公开(公告)号：US20100195753A1
公开(公告)日：2010-08-05
申请号：US12670200
申请日：2009-05-19
申请人： Atsushi Yamamoto , Hiroshi Iwai , Satoru Amari , Tsutomu Sakata
发明人： Atsushi Yamamoto , Hiroshi Iwai , Satoru Amari , Tsutomu Sakata
IPC分类号： H04L1/02
CPC分类号： H04B7/04 , H01Q1/243 , H01Q9/0407 , H01Q13/10 , H01Q21/28
摘要： A MIMO antenna apparatus is provided with: an upper housing having slits; first feed points through which the upper housing itself is excited as first antennas; second feed points through which the slits are excited as second antennas; switch circuits, each of which is connected to one of the first feed points and one of the second feed points, and connects one of the two feed points to an A/D converter circuit-; a signal level detector circuit detecting signal levels of received radio signals; and a controller that controls the switches to change a feed point connected to the A/D converter circuit, when the detected signal level is less than or equal to a predetermined threshold value. The slits are located between the first antennas.
摘要翻译： MIMO天线装置设置有：具有狭缝的上壳体; 第一馈电点，上壳体本身被激发作为第一天线; 狭缝被第二天线激励的第二馈电点; 开关电路，每个开关电路连接到第一馈电点中的一个和第二馈电点中的一个，并将两个馈电点中的一个连接到A / D转换器电路; 信号电平检测电路，检测所接收的无线电信号的信号电平; 以及控制器，当检测到的信号电平小于或等于预定阈值时，控制开关改变连接到A / D转换器电路的馈电点。狭缝位于第一天线之间。

49. 发明申请

US20080062065A1 MIMO antenna apparatus provided with variable impedance load element connected to parasitic element 有权
标题翻译： MIMO天线装置具有连接到寄生元件的可变阻抗负载元件
公开(公告)号：US20080062065A1
公开(公告)日：2008-03-13
申请号：US11889742
申请日：2007-08-16
申请人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata
发明人： Atsushi Yamamoto , Hiroshi Iwai , Tsutomu Sakata
IPC分类号： H01Q1/50
CPC分类号： H01Q19/30 , H01Q1/243 , H01Q19/32
摘要： A MIMO antenna apparatus includes a plurality of feeding antenna elements, a parasitic element electromagnetically coupled to each feeding antenna element, and a variable impedance load element connected to the parasitic element. A signal level comparator circuit detects received signal levels of received wireless signals and compares the received signal levels with each other, and thus detects the minimum received signal level. A controller controls an impedance value of the variable impedance load element based on the received signal levels detected by the signal level comparator circuit, such that the received signal level of the wireless signal having the minimum received signal level is substantially maximized.
摘要翻译： MIMO天线装置包括多个馈电天线元件，电磁耦合到每个馈电天线元件的寄生元件和连接到寄生元件的可变阻抗负载元件。信号电平比较器电路检测接收到的无线信号的接收信号电平，并将接收信号电平彼此进行比较，从而检测最小接收信号电平。控制器基于由信号电平比较器电路检测到的接收信号电平来控制可变阻抗负载元件的阻抗值，使得具有最小接收信号电平的无线信号的接收信号电平基本上最大化。

50. 发明申请

US20100022197A1 WIRELESS COMMUNICATION APPARATUS FOR SIMULTANEOUSLY PERFORMING MULTIPLE WIRELESS COMMUNICATIONS 有权
标题翻译：无线通信设备同时执行多条无线通信
公开(公告)号：US20100022197A1
公开(公告)日：2010-01-28
申请号：US12439103
申请日：2007-09-11
申请人： Akira Kato , Hiroshi Iwai , Atsushi Yamamoto
发明人： Akira Kato , Hiroshi Iwai , Atsushi Yamamoto
IPC分类号： H04B1/40 , H04M1/00 , H04N7/16
CPC分类号： H04B1/3805 , H04B1/005
摘要： A portable wireless communication apparatus is provided with antenna elements; a mobile phone signal processing circuit; a DTV tuner for receiving DTV low-band frequency signals and DTV high-band frequency signals; impedance matching circuits for the mobile phone signal processing circuit; and impedance matching circuits for the DTV tuner for receiving the DTV low-band frequency signals and DTV high-band frequency signals. A switch is changed to select either the DTV low-band frequency signals or the DTV high-band frequency signals, and output the selected signals to the DTV tuner. A tuner controller controls the switch to select the DTV high-band frequency signals by using the antenna element for transmission from the mobile phone signal processing circuit.
摘要翻译：便携式无线通信装置设置有天线元件; 手机信号处理电路; DTV调谐器，用于接收DTV低频信号和DTV高频信号; 用于手机信号处理电路的阻抗匹配电路; 以及用于DTV调谐器的用于接收DTV低频带频率信号和DTV高频带频率信号的阻抗匹配电路。改变开关以选择DTV低频带频率信号或DTV高频带频率信号，并将选择的信号输出到DTV调谐器。调谐器控制器通过使用用于从移动电话信号处理电路传输的天线元件来控制开关来选择DTV高频带频率信号。

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