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    • 62. 发明授权
    • Bias circuit
    • 偏置电路
    • US08570117B2
    • 2013-10-29
    • US12898164
    • 2010-10-05
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • H03H7/01
    • H03F1/306H03F3/1935H03F2200/111H03F2200/18H03F2200/451H03F2200/75
    • A bias circuit includes: a bias supply terminal 800; a parallel capacitor 3 connected at one end thereof to the bias supply terminal 800 and grounded at the other end thereof; and a parallel circuit 3L connected in parallel with the parallel capacitor 3 and connected at one end thereof to the bias supply terminal 800. Let 2≦N. The parallel circuit 3L includes: a direct-current power supply connection terminal 600; N parallel inductors 21 to 2N connected in series with each other between the bias supply terminal 800 and the direct-current power supply connection terminal 600; and N−1 series resonators 91 to 9N−1. Each series resonator 91 to 9N−1 includes: a resonant capacitor 71 to 7N−1 connected at one end thereof to a connecting point between adjacent parallel inductors; and a resonant inductor 81 to 8N−1 connected at one end thereof to the other end of the resonant capacitor 71 to 7N−1 and grounded at the other end thereof.
    • 偏置电路包括:偏置电源端子800; 一个并联电容器3,其一端连接到偏置电源端子800并在其另一端接地; 以及与并联电容器3并联连接并在其一端连接到偏置电源端子800的并联电路3L。 并联电路3L包括:直流电源连接端子600; 在偏置电源端子800和直流电源连接端子600之间彼此串联连接的N个并联电感器21〜2N; 和N-1系列谐振器91至9N-1。 每个串联谐振器91至9N-1包括:在其一端连接到相邻并联电感器之间的连接点的谐振电容器71至7N-1; 以及在其一端连接到谐振电容器71至7N-1的另一端并在其另一端接地的谐振电感器81至8N-1。
    • 63. 发明授权
    • Multiband matching circuit and multiband power amplifier
    • 多频带匹配电路和多频带功率放大器
    • US08487713B2
    • 2013-07-16
    • US12695442
    • 2010-01-28
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • H03H7/38
    • H03H7/383H03F1/56H03F3/72H03F2200/111H03F2200/429H03F2203/7209H03H7/40H03H2007/386
    • A multiband matching circuit includes a first matching unit for converting an impedance in a signal path to Z0 in a first frequency band, and a second matching unit formed of a series matching section connected at one end in series with the first matching unit in the signal path, which is a transmission line whose characteristic impedance is equal to the matching impedance Z0 or a circuit equivalent to the transmission line at least in the first frequency band, and a parallel matching section connected at one end to the signal path at the other end of the series matching section and grounded at the other end. The parallel matching section is configured to open in impedance the connection point to the signal path in the first frequency band. The series matching section and the parallel matching section are designed to match an impedance in a second frequency band with Z0.
    • 多频带匹配电路包括:第一匹配单元,用于将信号路径中的阻抗转换为第一频带中的Z0;以及第二匹配单元,由串联匹配部分形成,串联匹配部分在信号的一端与第一匹配单元串联连接 路径,其特征阻抗等于匹配阻抗Z0或至少在第一频带中与传输线相当的电路的传输线,以及一端连接到另一端的信号路径的并行匹配部分 的串联匹配部分,并在另一端接地。 并联匹配部分被配置为以阻抗方式打开第一频带中的信号路径的连接点。 串联匹配部分和并联匹配部分被设计成使得在Z0的第二频带中的阻抗匹配。
    • 64. 发明授权
    • Multiband matching circuit and multiband power amplifier
    • 多频带匹配电路和多频带功率放大器
    • US08368483B2
    • 2013-02-05
    • US12693809
    • 2010-01-26
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • H03H7/38
    • H03H7/38H03H7/383H03H2007/386
    • A multiband matching circuit includes a first matching unit, a second matching unit, and a third matching unit, with all units being connected in series in a signal path. Matching with target impedance is established at a first frequency by appropriately designing the first matching unit and at a second frequency by appropriately designing the second and third matching units. The second matching unit and the third matching unit are designed to make the conversion ratio of the impedance viewed from the connection point between the second matching unit and the third matching unit to a circuit element to the target impedance smaller than the conversion ratio of the impedance viewed from the connection point between the first matching unit and the second matching unit to the circuit element to the target impedance, at the second frequency.
    • 多频带匹配电路包括第一匹配单元,第二匹配单元和第三匹配单元,所有单元在信号路径中串联连接。 通过适当地设计第一匹配单元并且通过适当地设计第二和第三匹配单元,以第二频率,以第一频率建立与目标阻抗的匹配。 第二匹配单元和第三匹配单元被设计成使从第二匹配单元和第三匹配单元之间的连接点观察到的阻抗的转换比与电路元件的目标阻抗小于阻抗的转换比 从第一匹配单元和第二匹配单元之间的连接点到电路元件到目标阻抗的第二频率。
    • 65. 发明申请
    • METHOD AND SYSTEM FOR ALLOCATING MEMORY TO A PIPELINE
    • 将记录分配给管道的方法和系统
    • US20120066470A1
    • 2012-03-15
    • US13207528
    • 2011-08-11
    • Atsushi FukudaMasakuni OkadaKazuto YamafujiTakashi Yonezawa
    • Atsushi FukudaMasakuni OkadaKazuto YamafujiTakashi Yonezawa
    • G06F12/02
    • G06F12/023G06F9/3851G06F9/3885G06F15/17375
    • A method, and associated system, for allocating memory to a first pipeline that includes a sequence of filters. Each filter is configured to execute a process specific to each filter, receive input data, and generate output data. The output data from each filter, except the last filter in the sequence, serves as the input data to the next filter in the sequence. An optimum memory capacity is allocated to the first pipeline if possible. Otherwise, a guaranteed memory bandwidth is allocated to the first pipeline if possible. Otherwise, extra memory currently allocated to a second pipeline is currently released if the second pipeline not currently performing processing or subsequently released when the second pipeline subsequently completes performing processing that is currently being performed, followed by allocating the extra memory to the first pipeline.
    • 一种用于将存储器分配给包括一系列过滤器的第一流水线的方法和相关联的系统。 每个过滤器被配置为执行特定于每个过滤器的过程,接收输入数据并生成输出数据。 来自每个滤波器的输出数据(序列中的最后一个滤波器除外)用作序列中下一个滤波器的输入数据。 如果可能,最佳的存储容量被分配给第一管道。 否则,如果可能,将保证的存储器带宽分配给第一管道。 否则,当第二管道当前正在执行处理或随后当第二管道随后完成执行当前正在执行的处理时,随后将额外的存储器分配给第一管道时,当前分配给第二管道的额外存储器当前被释放。
    • 68. 发明授权
    • Variable resonator
    • 可变谐振器
    • US07825754B2
    • 2010-11-02
    • US11555437
    • 2006-11-01
    • Kunihiro KawaiAtsushi FukudaHiroshi OkazakiShoichi Narahashi
    • Kunihiro KawaiAtsushi FukudaHiroshi OkazakiShoichi Narahashi
    • H01P7/08H01P1/203
    • H01P1/2039H01P1/2013H01P1/20381
    • A variable resonator has a dielectric substrate 2, an input/output line 3 formed on the dielectric substrate 2, a first resonator 4 that has one end connected to the input/output line 3 and the other end grounded, and a second resonator that has one end connected to the input/output line 3 at the point of connection of the one end of the first resonator 4 and the other end grounded via a terminal switch 7. When the terminal switch 7 is turned off, resonance occurs at a frequency at which the sum of the line lengths of the first resonator 4 and the second resonator 6 equals to a quarter of the wavelength. When the terminal switch 7 is turned on, resonance occurs at a frequency at which a half of the sum of the line lengths equals to a quarter of the wavelength.
    • 可变谐振器具有电介质基板2,形成在电介质基板2上的输入输出线3,一端连接到输入输出线3而另一端接地的第一谐振器4以及具有 一端在第一谐振器4的一端的连接点处连接到输入/输出线3,另一端经由端子开关7接地。当端子开关7断开时,谐振发生在频率为 其中第一谐振器4和第二谐振器6的线路长度之和等于波长的四分之一。 当端子开关7接通时,在线长度的一半的一半等于波长的四分之一的频率处发生谐振。
    • 69. 发明授权
    • Matching circuit
    • 匹配电路
    • US07750757B2
    • 2010-07-06
    • US12405891
    • 2009-03-17
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • Atsushi FukudaHiroshi OkazakiShoichi Narahashi
    • H03H7/38
    • H03H7/383H04B1/0458
    • The present invention has for its object to provide a matching circuit with multiband capability which can be reduced in size, even if the number of handled frequency bands rises. The matching circuit of the present invention comprises a load having frequency-dependent characteristics, a first matching block connected with one end to the load with frequency-dependent characteristics, and a second matching block formed by lumped elements connected in series to the first matching block. And then, when a certain frequency band is used, matching is obtained with the series impedance of the first matching block and the second matching block. When a separate frequency band is used, a π-type circuit is constituted by connecting auxiliary matching blocks to both sides of the second matching block. Next, at the same frequency, by taking the combined impedance of this π-type circuit and a load whose characteristics do not depend on the frequency to be Z0, the influence of the second matching block is removed.
    • 本发明的目的是提供一种具有多频带能力的匹配电路,即使处理的频带的数量上升,也能够减小其尺寸。 本发明的匹配电路包括具有频率相关特性的负载,与一端连接到具有频率相关特性的负载的第一匹配块,以及由串联连接到第一匹配块的集总元件形成的第二匹配块 。 然后,当使用某个频带时,利用第一匹配块和第二匹配块的串联阻抗获得匹配。 当使用单独的频带时,通过将辅助匹配块连接到第二匹配块的两侧来构成一个类型电路。 接下来,以相同的频率,通过将该&pgr-型电路的组合阻抗和其特性不依赖于频率的负载为Z0,去除第二匹配块的影响。