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    • 31. 发明授权
    • Delay estimation apparatus and method
    • 延迟估计装置及方法
    • US07986723B2
    • 2011-07-26
    • US11922492
    • 2005-07-06
    • Yihong QiRyuji Kohno
    • Yihong QiRyuji Kohno
    • H04B1/00
    • H04L25/0212H04B1/7183H04J3/0682
    • Delay estimation apparatus and method, comprising: a correlation step which a correlation function between a received signal and a supplied template waveform is generated, AD conversion step at which said correlation output generated at said correlation step is uniformly sampled into discrete samples; and arithmetic operation step at which a time delay estimate of the received signal based on said discrete samples generated at said AD conversion step is computed, wherein a selection criterion depending on the digital sampling frequency used at said AD conversion means is checked, if said selection criterion is satisfied, computes the time delay estimate based on the direct pick method, and if said selection criterion does not hold, computes the time delay estimate based on the simplified maximum likelihood (ML) method.
    • 延迟估计装置和方法包括:生成接收信号和提供的模板波形之间的相关函数的相关步骤,将在所述相关步骤中产生的所述相关输出均匀地采样到离散样本的AD转换步骤; 以及算术运算步骤,其中计算基于在所述AD转换步骤产生的所述离散样本的接收信号的时间延迟估计,其中检查根据所述AD转换装置使用的数字采样频率的选择标准,如果所述选择 基于直接选择方法计算时间延迟估计,并且如果所述选择标准不成立,则基于简化最大似然(ML)方法计算时间延迟估计。
    • 32. 发明授权
    • Wireless impulse transmitter, receiver, and method
    • 无线脉冲发射机,接收机和方法
    • US07440505B2
    • 2008-10-21
    • US10200953
    • 2002-07-22
    • Lachlan MichaelMohammad GhavamiRyuji Kohno
    • Lachlan MichaelMohammad GhavamiRyuji Kohno
    • H04L27/00
    • H04B1/7172H04B1/7174H04B1/7183H04L5/02H04L27/0004
    • A wireless impulse transmitter that is for transmitting pulse trains to a plurality of receivers, includes a pulse selector, a pulse supplier, and a transmission unit. The pulse selector is for selecting, from a plurality of orthogonal pulse shapes assigned in a two-to-one correspondence with the receivers, pulse shapes corresponding to symbols of an input data stream. Each of the two pulse shapes assigned to each receiver represents either one or zero to the corresponding receiver. The pulse supplier is for supplying pulses in pulse shapes selected by the pulse selector. The transmission unit is for transmitting the pulses supplied from the pulse supplier in pulse trains, wherein pulses with pulse shapes assigned to different receivers are transmitted simultaneously.
    • 用于向多个接收机发射脉冲串的无线脉冲发射机包括脉冲选择器,脉冲提供器和传输单元。 脉冲选择器用于从与接收器二对一对应分配的多个正交脉冲形状中选择对应于输入数据流的符号的脉冲形状。 分配给每个接收器的两个脉冲形状中的每一个代表对应的接收器中的一个或者零。 脉冲供应器用于提供由脉冲选择器选择的脉冲形状的脉冲。 发送单元用于在脉冲串中发送从脉冲提供器提供的脉冲,其中同时传输分配给​​不同接收机的具有脉冲形状的脉冲。
    • 33. 发明授权
    • Constitution of a receiver in an ultra-wideband wireless communications system
    • 超宽带无线通信系统中接收机的结构
    • US07382829B2
    • 2008-06-03
    • US10936583
    • 2004-09-09
    • Kenichi TakizawaRyuji Kohno
    • Kenichi TakizawaRyuji Kohno
    • H03K7/08H03M13/03
    • H03M13/2957H03M13/6325H04B1/71637H04B1/7176H04L1/005H04L1/0071H04L27/14
    • This invention has as its object to implement the constitution of a receiver that receives signals sent by performing multi-valued pulse modulation and performs iterative decoding. The constitution includes: (1) a bank of pulse correlators that achieves correlation with all predetermined sent pulse waveforms, (2) a pulse demapper that calculates the log likelihood ratio for each bit of the interleaved code word from said pulse correlator outputs and a priori information for each bit, (3) a deinterleaver that performs deinterleaving on the output from said pulse demapper, (4) a decoder that calculates likelihood information for the deinterleaved code word bits and information bits, respectively, (5) an interleaver that interleaves the output of the decoder in the same manner as on the sending side, and (6) a feedback circuit that provides feedback of the output of said interleaver as a priori probability to the pulse demapper.
    • 本发明的目的是实现接收通过执行多值脉冲调制发送的信号并执行迭代解码的接收机的结构。 该结构包括:(1)实现与所有预定发送脉冲波形相关的脉冲相关器组,(2)脉冲去映射器,其计算来自所述脉冲相关器输出的交错码字的每一比特的对数似然比, (3)解交织器,其对所述脉冲解映射器的输出执行去交错;(4)解码器,分别计算解交织码字位和信息位的似然信息;(5)交错器, 以与发送侧相同的方式输出解码器,以及(6)将所述交织器的输出的反馈作为先验概率提供给脉冲解映射器的反馈电路。
    • 36. 发明申请
    • Constitution of a receiver in an ultra-wideband wireless communications system
    • 超宽带无线通信系统中接收机的结构
    • US20050105649A1
    • 2005-05-19
    • US10936583
    • 2004-09-09
    • Kenichi TakizawaRyuji Kohno
    • Kenichi TakizawaRyuji Kohno
    • H03M13/27H03M13/29H03M13/39H03M13/45H04L1/00H04L25/49H04L27/14
    • H03M13/2957H03M13/6325H04B1/71637H04B1/7176H04L1/005H04L1/0071H04L27/14
    • This invention has as its object to implement the constitution of a receiver that receives signals sent by performing multi-valued pulse modulation and performs iterative decoding. The constitution includes: (1) a bank of pulse correlators that achieves correlation with all predetermined sent pulse waveforms, (2) a pulse demapper that calculates the log likelihood ratio for each bit of the interleaved code word from said pulse correlator outputs and a priori information for each bit, (3) a deinterleaver that performs deinterleaving on the output from said pulse demapper, (4) a decoder that calculates likelihood information for the deinterleaved code word bits and information bits, respectively, (5) an interleaver that interleaves the output of the decoder in the same manner as on the sending side, and (6) a feedback circuit that provides feedback of the output of said interleaver as a priori probability to the pulse demapper.
    • 本发明的目的是实现接收通过执行多值脉冲调制发送的信号并执行迭代解码的接收机的结构。 该结构包括:(1)实现与所有预定发送脉冲波形相关的脉冲相关器组,(2)脉冲去映射器,其计算来自所述脉冲相关器输出的交错码字的每一比特的对数似然比, (3)解交织器,其对所述脉冲解映射器的输出执行去交错;(4)解码器,分别计算解交织码字位和信息位的似然信息;(5)交错器, 以与发送侧相同的方式输出解码器,以及(6)将所述交织器的输出的反馈作为先验概率提供给脉冲解映射器的反馈电路。
    • 39. 发明授权
    • Radio communication system
    • 无线通信系统
    • US06728294B1
    • 2004-04-27
    • US09575995
    • 2000-05-23
    • Ryuji KohnoHiroki Mochizuki
    • Ryuji KohnoHiroki Mochizuki
    • H04L2730
    • H04B1/715H04B7/0408H04B7/0617H04B7/086H04B2001/7152
    • A microprocessor reads the information such as directions of arrival about a desired wave and an undesired wave for every terminal station and for every hopping frequency, and their receiving powers, and the like, from a desired wave/undesired wave information inputting unit. On the basis of the information items, the microprocessor calculates the weight values of a transmitting section and a receiving section for every terminal station and every hopping frequency, and stores them in a weight value table. At the time of performing radio communication, the microprocessor reads the weight values of the receiving section and the transmitting section corresponding to every terminal station and every hopping frequency from the weight value table every time the frequency is hopped, and sets them in attenuators, and phase shifters. As a result, the optimum directivity pattern is formed for every hopping frequency, and high-quality communication can be thereby achieved.
    • 微处理器从期望的波/不需要波信息输入单元读取关于每个终端的期望波和不期望波的到达方向以及每个跳频的信息及其接收功率等。 基于该信息项目,微处理器计算每个终端的发送部分和接收部分的权重值以及每个跳频,并将它们存储在权重值表中。 在执行无线电通信时,微处理器在每次跳频时从权重值表读取对应于每个终端的接收部分和发送部分的重量值以及每个跳频,并将它们设置为衰减器,并且 移相器 结果,对于每个跳频形成最佳方向性图案,从而可以实现高质量的通信。
    • 40. 发明授权
    • Semiconductor inspection apparatus
    • 半导体检测仪器
    • US06714030B2
    • 2004-03-30
    • US10390412
    • 2003-03-18
    • Ryuji KohnoHideo MiuraYoshishige EndoMasatoshi KanamaruAtsushi HosoganeHideyuki AokiNaoto Ban
    • Ryuji KohnoHideo MiuraYoshishige EndoMasatoshi KanamaruAtsushi HosoganeHideyuki AokiNaoto Ban
    • G01R3102
    • H01L22/32G01R1/06711G01R1/06738G01R1/07314G01R3/00H01L23/13H01L2924/0002H01L2924/13091H01L2924/00
    • A semiconductor inspection apparatus which is possible to inspect a plurality of semiconductor devices collectively at one time, which has conventionally been difficult because of precision or the like of probes. A method of manufacturing the semiconductor inspection apparatus comprises the steps of forming a cover film on a surface of the silicon substrate and forming a plurality of probes of a polygonal cone shape or a circular cone shape through etching after patterning by photolithography, after the cover film is removed, again forming a cover film on the surface of the silicon substrate and forming a beam or a diaphragm for each probe through etching after patterning by photolithography, after the cover film is removed, again forming a cover film on the surface of the silicon substrate and forming a through hole corresponding to the probe through etching after patterning by photolithography, and after the cover film is removed, forming an insulating film on the surface of the silicon substrate, forming a metal film on a surface of the insulating film, and forming a wiring lead through etching after patterning by photolithography.
    • 可以一次共同地检查多个半导体器件的半导体检查装置,由于探针的精度等,以前难以进行。 一种制造半导体检查装置的方法包括以下步骤:在硅衬底的表面上形成覆盖膜,并通过光刻图案化之后通过蚀刻形成多个锥形或圆锥形的多个探针, 被去除,再次在硅衬底的表面上形成覆盖膜,并且通过光刻在图案化之后通过蚀刻形成用于每个探针的光束或隔膜,在除去覆盖膜之后,再次在硅表面上形成覆盖膜 在通过光刻图案化之后通过蚀刻形成与探针对应的通孔,并且在除去覆盖膜之后,在硅衬底的表面上形成绝缘膜,在绝缘膜的表面上形成金属膜,以及 通过光刻在图案化之后通过蚀刻形成布线引线。