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    • 31. 发明授权
    • Radio communication device and radio communication method
    • 无线电通信设备和无线电通信方法
    • US08824975B2
    • 2014-09-02
    • US13318416
    • 2011-02-23
    • Junji SatoSuguru Fujita
    • Junji SatoSuguru Fujita
    • H04B1/44H04L25/49H04L5/16H04B1/00H03F3/24H03F3/60H03F1/32H04B1/04
    • H04B1/0475H03F1/3247H03F1/34H03F3/24H03F3/245H03F3/604H04B2001/0433
    • It is provided a radio communication apparatus and radio communication method that, in the radio communication apparatus having a normal transmitting/receiving mode and a distortion correction mode, communicates successfully without influencing circuit characteristic in a normal transmitting/receiving mode, sends back a transmitting signal from the receiving system, extracts a distortion component due to narrowband characteristics or non-linear characteristics of a circuit, and corrects distortion in a distortion correction mode. In radio communication apparatus (100), distortion detecting section (111) extracts a distortion component using a transmitting baseband signal and a receiving baseband signal, coupling degree adjustment circuit (180) adjusts the degree of coupling between transmitting antenna (130) and receiving antenna (140), and coupling degree control section (170) switches the degree of coupling depending on a normal transmitting/receiving mode or a distortion correction mode.
    • 提供了一种无线电通信装置和无线电通信方法,在具有正常发送/接收模式和失真校正模式的无线电通信装置中,在正常的发送/接收模式下成功通信而不影响电路特性,发送回发送信号 从接收系统,由于电路的窄带特性或非线性特性而提取失真分量,并且在失真校正模式中校正失真。 在无线通信装置(100)中,失真检测部(111)使用发送基带信号和接收基带信号来提取失真成分,耦合度调整电路(180)调整发送天线(130)与接收天线 (140)和耦合度控制部分(170)根据正常发送/接收模式或失真校正模式切换耦合度。
    • 32. 发明授权
    • Pulse modulation circuit and pulse modulation method
    • 脉冲调制电路和脉冲调制方法
    • US08599944B2
    • 2013-12-03
    • US12305559
    • 2007-06-19
    • Junji SatoShigeru KobayashiSuguru Fujita
    • Junji SatoShigeru KobayashiSuguru Fujita
    • H04L5/12H04B1/00H04B7/212
    • H04L25/4902H03C1/36H04B1/7174H04B1/7176H04L27/04
    • Provided is a pulse modulation circuit capable of generating a pulse modulation signal with a steep rise and a desired pulse width at a desired timing not depending on a transmission signal sequence. In this circuit, a control signal generation unit (110) generates a first control signal if transmission data (S11) is “1” and a second control signal if the transmission data (S11) is “0.” The control signal generation unit (110) controls an oscillator (1200) of an intermittently operating circuit (120) to be at an oscillation state for outputting a desired first oscillation signal while the first control signal is turned ON and controls the oscillator (1200) to be at an idling state for outputting a second oscillation signal having a lower amplitude than the first oscillation signal while the second control signal is turned ON.
    • 提供了一种脉冲调制电路,其能够在不依赖于发送信号序列的期望定时产生具有陡峭上升和期望脉冲宽度的脉冲调制信号。 在该电路中,如果发送数据(S11)为“1”,则控制信号生成单元(110)生成第一控制信号,如果发送数据(S11)为“0”,则生成第二控制信号。 控制信号生成单元(110)将间歇运行电路(120)的振荡器(1200)控制为在第一控制信号接通时输出期望的第一振荡信号的振荡状态,并且控制振荡器(1200) 处于空闲状态,用于在第二控制信号接通时输出具有比第一振荡信号更低的振幅的第二振荡信号。
    • 36. 发明申请
    • INJECTION LOCKED FREQUENCY DIVIDER AND PLL CIRCUIT
    • 注射锁定分频器和PLL电路
    • US20120038396A1
    • 2012-02-16
    • US13266160
    • 2011-01-21
    • Takahiro ShimaJunji SatoMasashi Kobayashi
    • Takahiro ShimaJunji SatoMasashi Kobayashi
    • H03B19/00H03L7/08
    • H03K3/2885H03L7/08
    • An injection locked frequency divider and a PLL circuit, having a wide operating frequency bandwidth and capable of reducing the influence of any parasitic capacitance, are provided. Injection locked frequency divider (100) includes ring oscillator 140 that cascade-connects first amplifier circuit (141) including N-channel MOS transistor (111) and P-channel MOS transistor (112), and second amplifier circuit 142 and third amplifier circuit (143) that have the same configuration as first amplifier circuit (141) in three stages in a ring; N-channel MOS transistor 150 in which the sources of N-channel MOS transistors (111, 121, 131) in the respective stages are connected to the drain thereof; and differential signal injection circuit (160) that injects injection signal I1 to the gates of P-channel MOS transistors (112, 122, 132) in the respective stages and injects a reverse phase signal of injection signal I1. as a differential signal to the gate of N-channel MOS transistor (150).
    • 提供了具有宽的工作频率带宽并能够减小任何寄生电容的影响的注入锁定分频器和PLL电路。 注入锁定分频器(100)包括级联连接包括N沟道MOS晶体管(111)和P沟道MOS晶体管(112)的第一放大器电路(141)的环形振荡器140,以及第二放大器电路142和第三放大器电路 143),其具有与环中的三级相同的第一放大器电路(141)的配置; N沟道MOS晶体管150,其中各级的N沟道MOS晶体管(111,121,131)的源极连接到其漏极; 以及将各注入信号I1的反相信号注入到P沟道MOS晶体管(112,122,132)的栅极的注入信号I1的差分信号注入电路(160)。 作为到N沟道MOS晶体管(150)的栅极的差分信号。
    • 38. 发明授权
    • Driving device and driving system
    • 驱动装置和驱动系统
    • US07608979B2
    • 2009-10-27
    • US11493227
    • 2006-07-26
    • Junji SatoJunichi TaniiYoshihiro HaraAkira Kosaka
    • Junji SatoJunichi TaniiYoshihiro HaraAkira Kosaka
    • H01L41/08
    • H02N2/067H02N2/025
    • Drive technology is provided which makes suitable low velocity driving and smooth changing of driving velocity possible and achieves reduced power consumption. In the driving device, the drive unit is driven which engages with drive shaft which moves back and forth in tandem with extension and contraction of the piezoelectric element. In this driving device, when the output cycle for cycle Te is repeated such that the voltages applied to the piezoelectric element 11 are the maximum value (+Vp), the minimum value (−Vp), and the middle value (0V), the movement velocity of the drive unit 13 can be changed by thinning the output cycle at cycle Tf. As a result, suitable low velocity driving can be carried out and power consumption can be reduced in the drive unit.
    • 提供驱动技术,使得适当的低速驱动和驱动速度的平滑变化成为可能,并实现降低的功耗。 在驱动装置中,驱动单元与驱动轴啮合,该驱动轴与压电元件的伸缩一起前后移动。 在该驱动装置中,当重复循环Te的输出周期,使得施加到压电元件11的电压为最大值(+ Vp)时,最小值(-Vp)和中间值(0V), 驱动单元13的移动速度可以通过在周期Tf变薄输出周期来改变。 结果,可以实现合适的低速驱动,并且可以在驱动单元中降低功耗。
    • 39. 发明授权
    • Antenna device and wireless terminal using the antenna device
    • 天线设备和使用天线设备的无线终端
    • US07602340B2
    • 2009-10-13
    • US11574894
    • 2005-09-12
    • Junji Sato
    • Junji Sato
    • H01Q1/38
    • H01Q9/065H01Q3/44H01Q9/16H01Q9/26H01Q19/24H01Q19/30
    • The present invention aims at providing an antenna apparatus which enables switching directivity suitable for a plurality of usage patterns of a wireless terminal, such as that achieved during voice conversation and that achieved during data communication, and is easily slimmed down, as well as providing a wireless terminal using the antenna apparatus.An antenna apparatus 1 of the present invention includes a linear radiating element 3 placed on a first plane; a first parasitic element 6 placed on the first plane in parallel with the radiating element 3; a first ground conductor 5 placed on the first plane; a first switch 7 which connects both ends of the first parasitic element 6 to the first ground conductor; and a second ground conductor 8 placed on a second plane opposing the first plane, wherein a part of the first ground conductor 5 is placed in parallel with the radiating element 3 and on a side opposite the first parasitic element 6 with the radiating element 3 sandwiched therebetween; and the second ground conductor 8 is placed opposite the radiating element 3, and ends of the second ground conductor 8 oppose an area sandwiched between the radiating element 3 and the first parasitic element 6.
    • 本发明旨在提供一种天线装置,其能够实现适合无线终端的多种使用模式的切换方向性,例如在语音对话期间实现的并且在数据通信期间实现的方式,并且容易地减薄,以及提供 无线终端使用天线装置。 本发明的天线装置1包括放置在第一平面上的线性辐射元件3; 与辐射元件3平行放置在第一平面上的第一寄生元件6; 放置在第一平面上的第一接地导体5; 第一开关7,其将第一寄生元件6的两端连接到第一接地导体; 以及放置在与第一平面相对的第二平面上的第二接地导体8,其中第一接地导体5的一部分与辐射元件3平行放置,并且在与第一寄生元件6相对的一侧放置辐射元件3, 之间; 并且第二接地导体8与辐射元件3相对放置,第二接地导体8的端部与夹在辐射元件3和第一寄生元件6之间的区域相对。
    • 40. 发明申请
    • MAGNETIC HEAD AND MULTILAYERED CIRCUIT
    • 磁头和多层电路
    • US20090195940A1
    • 2009-08-06
    • US12245301
    • 2008-10-03
    • Junji SatoTakashi Ito
    • Junji SatoTakashi Ito
    • G11B5/33
    • G11B5/3906
    • In the magnetic head, terminal sections for mutually electrically connecting layers in the multilayer structure can be formed without forming raising layers. The magnetic head having a multilayer structure comprises: an upper shielding layer; a lower shielding layer; a magnetoresistance effect element section provided between the shielding layers; a magnetic pole; terminal sections mutually electrically connecting layers of the multilayer structure; and a first low-thermal expansion material layer composed of an insulating material, and each of the terminal sections has a multilayer structure comprising: a second low-thermal expansion material layer composed of a material which is the same as that of the first low-thermal expansion material layer; and a plurality of electrically conductive layers.
    • 在磁头中,可以在不形成升高层的情况下形成用于在多层结构中互相电连接层的端子部。 具有多层结构的磁头包括:上屏蔽层; 下屏蔽层; 设置在所述屏蔽层之间的磁阻效应元件部; 磁极 端部分彼此电连接多层结构的层; 以及由绝缘材料构成的第一低热膨胀材料层,并且每个所述端子部分具有多层结构,所述多层结构包括:第二低热膨胀材料层,其由与所述第一低热膨胀材料层相同的材料组成, 热膨胀材料层; 和多个导电层。