公开(公告)号：US20110222446A1

公开(公告)日：2011-09-15

申请号：US13044346

申请日：2011-03-09

申请人： Shinji Nakatsuka ,  Kazuhiro Oda

发明人： Shinji Nakatsuka ,  Kazuhiro Oda

IPC分类号： H04B3/20

CPC分类号： H04B3/23

摘要： An echo cancellation circuit in a full duplex two-way communication system comprising: an input/output terminal; a subtractor having a positive and a negative input terminals, in which a first transmission signal is inputted to the negative input terminal as a pseudo echo signal, the first transmission signal is inputted through an output buffer to the positive input terminal as an echo signal, the pseudo echo signal inputted to the negative input terminal is subtracted from the echo signal inputted to the positive input terminal; and a result of the subtraction is outputted; and an echo cancellation error reducing unit having a D/A converter at an input side or an output side of the subtractor.

摘要翻译： 一种全双工双向通信系统中的回波消除电路，包括：输入/输出端; 具有正输入端和负输入端的减法器，其中第一传输信号作为伪回波信号输入到负输入端，第一传输信号通过输出缓冲器输入到正输入端作为回波信号， 从输入到正输入端的回波信号中减去输入到负输入端的伪回波信号; 并输出减法的结果; 以及在减法器的输入侧或输出侧具有D / A转换器的回波消除误差减小单元。

公开(公告)号：US08526339B2

公开(公告)日：2013-09-03

申请号：US13044346

申请日：2011-03-09

申请人： Shinji Nakatsuka ,  Kazuhiro Oda

发明人： Shinji Nakatsuka ,  Kazuhiro Oda

IPC分类号： H04B3/20

CPC分类号： H04B3/23

摘要： An echo cancellation circuit in a full duplex two-way communication system comprising: an input/output terminal; a subtractor having a positive and a negative input terminals, in which a first transmission signal is inputted to the negative input terminal as a pseudo echo signal, the first transmission signal is inputted through an output buffer to the positive input terminal as an echo signal, the pseudo echo signal inputted to the negative input terminal is subtracted from the echo signal inputted to the positive input terminal; and a result of the subtraction is outputted; and an echo cancellation error reducing unit having a D/A converter at an input side or an output side of the subtractor.

摘要翻译： 一种全双工双向通信系统中的回波消除电路，包括：输入/输出端; 具有正输入端和负输入端的减法器，其中第一传输信号作为伪回波信号输入到负输入端，第一传输信号通过输出缓冲器输入到正输入端作为回波信号， 从输入到正输入端的回波信号中减去输入到负输入端的伪回波信号; 并输出减法的结果; 以及在减法器的输入侧或输出侧具有D / A转换器的回波消除误差减小单元。

公开(公告)号：US07382723B2

公开(公告)日：2008-06-03

申请号：US10376262

申请日：2003-03-03

申请人： Atsushi Sutoh ,  Kazuhiro Oda

发明人： Atsushi Sutoh ,  Kazuhiro Oda

IPC分类号： H04J1/16

CPC分类号： H04J3/0602 ,  H04J3/062 ,  H04J3/14 ,  H04J2203/0094 ,  H04L1/22

摘要： A hitless switching system includes a sending apparatus and a receiving apparatus. The sending apparatus includes: a distributing part for dividing an original signal into a plurality of signals; and a transmitting part for transmitting the divided signals over one or a plurality of transmission lines with redundancy. The receiving apparatus includes: a phase difference detection part for detecting phase differences between signals sent from the sending apparatus; a phase difference absorbing part for absorbing phase differences detected by the phase difference detection part; selectors each of which selects one signal from a plurality of signals; and a restoring part for restoring the original signal from the signals output from the selectors.

摘要翻译： 无中断切换系统包括发送装置和接收装置。 发送装置包括：分配部分，用于将原始信号分割成多个信号; 以及用于通过冗余的一条或多条传输线路发送划分的信号的发送部分。 接收装置包括：相位差检测部，用于检测从发送装置发送的信号之间的相位差; 相位差吸收部，用于吸收由所述相位差检测部检测出的相位差; 每个选择器从多个信号中选择一个信号; 以及恢复部件，用于从从选择器输出的信号中恢复原始信号。

公开(公告)号：US06510115B2

公开(公告)日：2003-01-21

申请号：US09840268

申请日：2001-04-24

申请人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

发明人： Tokinori Furuichi ,  Yuji Hirai ,  Hiroyuki Hayashi ,  Gohshi Jin ,  Kazuhiro Oda ,  Naomi Nomura ,  Seiji Inaba

IPC分类号： G11B390

CPC分类号： G11B7/126 ,  G11B7/127 ,  G11B2007/0006

摘要： The present invention provides a single information recording and reproducing apparatus that is used to record data to multiple disks that are to be recorded on using different wavelengths. More specifically, the present invention provides an apparatus that accurately discriminates disk types while preventing disk damage and accidental recording of data during the disk type discrimination operation. The disk type is determined using the intensity of light reflected from the disk. Information is encoded using an encoder corresponding to the disk type. The resulting signal is used to drive a laser corresponding to the disk type, and information is recorded.

公开(公告)号：US20130115129A1

公开(公告)日：2013-05-09

申请号：US13810508

申请日：2011-07-06

申请人： Jie Xing ,  Izumi Yamamoto ,  Kazuhiro Oda ,  Yutaka Ishida ,  Hiroshi Horikawa

发明人： Jie Xing ,  Izumi Yamamoto ,  Kazuhiro Oda ,  Yutaka Ishida ,  Hiroshi Horikawa

IPC分类号： C22C21/02 ,  B22D23/00

CPC分类号： C22C21/02 ,  B22D21/007 ,  B22D23/00 ,  C22C1/026 ,  C22F1/043 ,  C22F3/02

摘要： An aluminum alloy which is excellent in high temperature strength and heat conductivity by adjusting the composition to one keeping down the drop in high temperature strength and making the Mn content as small as possible to reduce the formation of a solid solution in the aluminum, which aluminum alloy having a composition of ingredients which contains Si: 12 to 16 mass %, N: 0.1 to 2.5 mass %, Cu: 3 to 5 mass %, Mg: 0.3 to 1.2 mass %, Fe: 0.3 to 1.5 mass %, and P: 0.004 to 0.02 mass % and furthermore 0 to 0.1 mass % of Mn and further contains, as necessary, at least one of V: 0.01 to 0.1 mass %, Zr: 0.01 to 0.6 mass %, Cr: 0.01 to 0.2 mass %, and Ti: 0.01 to 0.2 mass %. Also described is a method for producing the aluminum alloy melt.

摘要翻译： 一种铝合金，其通过将组合物调整为一种而降低高温强度降低并使Mn含量尽可能小以使铝的固溶体形成减少，其具有优异的高温强度和导热性，铝 合金，其组成为含有Si：12〜16质量％，N：0.1〜2.5质量％，Cu：3〜5质量％，Mg：0.3〜1.2质量％，Fe：0.3〜1.5质量％，P ：0.004〜0.02质量％，进一步含有0〜0.1质量％的Mn，根据需要还含有V：0.01〜0.1质量％，Zr：0.01〜0.6质量％，Cr：0.01〜0.2质量％ Ti：0.01〜0.2质量％。 还描述了一种用于生产铝合金熔体的方法。

公开(公告)号：US20070280087A1

公开(公告)日：2007-12-06

申请号：US11503998

申请日：2006-08-15

申请人： Koichi Watanabe ,  Hiroyuki Minemura ,  Mitsunori Kobayashi ,  Kazuhiro Oda

发明人： Koichi Watanabe ,  Hiroyuki Minemura ,  Mitsunori Kobayashi ,  Kazuhiro Oda

IPC分类号： G11B7/00

CPC分类号： G11B7/1267 ,  G11B2007/0013

摘要： An objective of the present invention is to enhance reliability of recorded data by preventing deterioration of OPC (Optimum Power Calibration) accuracy due to an influence of inter-layer interference in an optical disk device capable of writing in a multilayer optical disk. Aiming at the objective, a relationship between asymmetry and a signal modulation depth, which are measured by use of a standard driver is referred, and thereby an offset caused by a device, a disk, a writing state of another layer and the like is compensated. Thus, OPC is executed.

摘要翻译： 本发明的目的是通过防止由于能够写入多层光盘的光盘装置中的层间干扰的影响而导致的OPC（最佳功率校准）精度的劣化来提高记录数据的可靠性。 针对该目的，参考通过使用标准驱动器测量的不对称性和信号调制深度之间的关系，从而补偿由设备，盘，另一层的写入状态等引起的偏移 。 因此，执行OPC。

公开(公告)号：US20070193663A1

公开(公告)日：2007-08-23

申请号：US10593338

申请日：2005-03-23

申请人： Kazuhiro Oda ,  Masahiko Shioda

发明人： Kazuhiro Oda ,  Masahiko Shioda

IPC分类号： C22C21/04

CPC分类号： B22D11/124 ,  B22D11/0605 ,  C22C21/02 ,  C22F1/05

摘要： An aluminum alloy for casting with excellent rigidity and having a low coefficient of linear expansion containing 13-25% by mass of silicon, 2-8% by mass of copper, 0.5-3% by mass of iron, 0.3-3% by mass of manganese, 0.001-0.02% by mass of phosphorus, and the remainder comprising aluminum and inevitable impurities, wherein the total amount of iron and manganese is 3.0% by mass or greater. Said alloy may further contain 0.5-6% by mass of nickel, and the total amount of iron, manganese, and nickel may be 3.0% by mass or greater. Further, said alloy may further contain one or more of 0.1-1.0% by mass of chromium, 0.05-1.5% by mass of magnesium, 0.01-1.0% by mass of titanium, 0.0001-1.0% by mass of boron, 0.1-1.0% by mass of zirconium, 0.1-1.0% by mass of vanadium, or 0.01-1.0% by mass of molybdenum.

摘要翻译： 一种铸造用铝合金，具有优异的线膨胀系数，含有13-25质量％的硅，2-8质量％的铜，0.5-3质量％的铁，0.3-3质量％ 的锰，0.001-0.02质量％的磷，其余为铝和不可避免的杂质，其中铁和锰的总量为3.0质量％以上。 所述合金还可以含有0.5-6质量％的镍，铁，锰和镍的总量可以为3.0质量％以上。 此外，所述合金还可以含有0.1〜1.0质量％的铬，0.05〜1.5质量％的镁，0.01〜1.0质量％的钛，0.0001〜1.0质量％的硼，0.1〜1.0质量％ 锆，质量百分比为0.1〜1.0质量％，钼为0.01〜1.0质量％。

公开(公告)号：US5969546A

公开(公告)日：1999-10-19

申请号：US55900

申请日：1998-04-07

申请人： Naoyuki Hamanishi ,  Kazuhiro Oda

发明人： Naoyuki Hamanishi ,  Kazuhiro Oda

IPC分类号： H03K5/08 ,  H03F3/45 ,  H03K5/24 ,  H03K5/22

CPC分类号： H03F3/45941 ,  H03F3/45659 ,  H03F3/45753 ,  H03K5/2481 ,  H03K5/249

摘要： In a comparator circuit comprised of a feedback amplifier and a differential amplifier AMP1, the feedback amplifier includes input transistors Tr1 to Tr4. Gates of the transistors Tr1 and Tr2 are respectively inputted with first and second inverted inputs, and gates of the transistors Tr3 and Tr4 are inputted with first and second non-inverted inputs. First ends of current paths of the transistors Tr3 and Tr4 are connected in common, and ends of current paths of transistors Tr1 and Tr2 are connected in common. Second ends of the current paths of the transistors Tr1 to Tr4 are connected in common to a constant current source. The first and second inverted inputs are supplied with a reference voltage, and the first and second non-inverted inputs are respectively supplied with the non-inverted and inverted outputs of the differential amplifier AMP1. A signal from a connection point common to the first ends of the current paths of the transistors Tr3 and Tr4 is supplied as a feedback output to the differential amplifier AMP1 to control operation of the differential amplifier AMP1. The timing when feedback is performed to stabilize the operating point of the differential amplifier AMP1 is the timing when the non-inverted and inverted outputs of the differential amplifier AMP1 have a small potential difference therebetween or are substantially equal to each other.

摘要翻译： 在由反馈放大器和差分放大器AMP1组成的比较器电路中，反馈放大器包括输入晶体管Tr1至Tr4。 晶体管Tr1和Tr2的栅极分别输入第一和第二反相输入，晶体管Tr3和Tr4的栅极被输入第一和第二非反相输入。 晶体管Tr3和Tr4的电流路径的第一端共同连接，并且晶体管Tr1和Tr2的电流路径的端部共同连接。 晶体管Tr1至Tr4的电流通路的第二端共同连接到恒流源。 第一和第二反相输入端被提供参考电压，并且第一和第二非反相输入分别被提供有差分放大器AMP1的非反相和反相输出。 来自与晶体管Tr3和Tr4的电流路径的第一端共同的连接点的信号作为反馈输出被提供给差分放大器AMP1，以控制差分放大器AMP1的操作。 执行反馈以稳定差分放大器AMP1的工作点的定时是当差分放大器AMP1的非反相和反相输出之间具有小的电位差或者彼此基本相等时的定时。

公开(公告)号：US20130307383A1

公开(公告)日：2013-11-21

申请号：US13982108

申请日：2011-01-27

申请人： Satoru Suzuki ,  Atsushi Kishimoto ,  Pizhi Zhao ,  Kazuhiro Oda ,  Tomohiro Isobe

发明人： Satoru Suzuki ,  Atsushi Kishimoto ,  Pizhi Zhao ,  Kazuhiro Oda ,  Tomohiro Isobe

IPC分类号： C22C21/04 ,  H05K5/04 ,  B22D25/06 ,  C22C21/02 ,  C22F1/043

CPC分类号： C22C21/04 ,  B22D25/06 ,  C22C21/02 ,  C22F1/043 ,  H02K5/02 ,  H02K5/06 ,  H05K5/04

摘要： An aluminum alloy casting having high electric resistance, high toughness and high corrosion resistance and optimally usable in manufacturing of electric motor housings, and a method of manufacturing said aluminum alloy casting are provided. The aluminum alloy casting has a composition including Si: 11.0-13.0 mass %, Fe: 0.2-1.0 mass %, Mn: 0.2-2.2 mass %, Mg: 0.7-1.3 mass %, Cr: 0.5-1.3 mass % and Ti: 0.1-0.5 mass %, with the balance consisting of Al and unavoidable impurities, wherein the content of Cu as an unavoidable impurity is limited to 0.2 mass % or less. In some cases, heat treatments such as solution heat treatment or artificial aging hardening treatment are performed after casting.

摘要翻译： 提供具有高电阻，高韧性和高耐腐蚀性并且最佳可用于制造电动机壳体的铝合金铸件，以及制造所述铝合金铸件的方法。 铝合金铸件具有Si：11.0〜13.0质量％，Fe：0.2〜1.0质量％，Mn：0.2〜2.2质量％，Mg：0.7〜1.3质量％，Cr：0.5〜1.3质量％，Ti： 0.1-0.5质量％，余量由Al和不可避免的杂质组成，其中作为不可避免的杂质的Cu的含量限制在0.2质量％以下。 在一些情况下，在铸造之后进行固溶热处理或人造时效硬化处理等热处理。

公开(公告)号：US07383557B2

公开(公告)日：2008-06-03

申请号：US11021986

申请日：2004-12-21

申请人： Hiroyuki Toyoda ,  Shigeo Ohashi ,  Yoshiaki Yamauchi ,  Kazuhiro Oda ,  Makoto Ibe

发明人： Hiroyuki Toyoda ,  Shigeo Ohashi ,  Yoshiaki Yamauchi ,  Kazuhiro Oda ,  Makoto Ibe

IPC分类号： G11B7/00 ,  G11B33/14

CPC分类号： G11B7/12 ,  G11B25/043 ,  G11B33/1406

摘要： In a recording disk apparatus, a pickup element and an electric element for at lease one of supplying an electric power to at least one of a recording disk driving motor and the pickup and processing a signal to be recorded into the recording disk and/or the signal read from the recording disk are prevented from overlapping each other as seen in a thickness direction of the recording disk to restrain a thermal conduction between the pickup element and the electric element so that a thermal conduction restraining area extending along an imaginary directional line crossing an imaginary straight line passing the pickup element and the electric element as seen in the thickness direction is formed between the pickup element and the electric element as seen in the thickness direction.

摘要翻译： 在记录盘装置中，拾取元件和电子元件至少一个为记录盘驱动电机和拾取器中的至少一个提供电力并且处理要记录到记录盘中的信号和/或 从记录盘读取的信号被防止在记录盘的厚度方向上看起来彼此重叠以抑制拾取元件和电气元件之间的热传导，使得沿着假想方向线延伸的导热限制区域横过 从厚度方向看，在拾取元件和电气元件之间形成通过拾取元件和电气元件的假想直线。