公开(公告)号：US07340232B2

公开(公告)日：2008-03-04

申请号：US10842445

申请日：2004-05-11

申请人： Motoki Murakami ,  Yutaka Igarashi ,  Akio Yamamoto ,  Isao Ikuta ,  Yoshiaki Harasawa

发明人： Motoki Murakami ,  Yutaka Igarashi ,  Akio Yamamoto ,  Isao Ikuta ,  Yoshiaki Harasawa

IPC分类号： H04B1/16

CPC分类号： H04B1/30

摘要： The invention provides a receiving system and a transmitting system capable of decreasing an offset between differential signals and between quadrature signals and improving a manufacturing yield and a semiconductor integrated circuit device for processing a wireless communication signal having therein the systems. A receiving system includes: a local oscillator for generating an oscillation signal in a desired frequency; a 90-degree phase-shifting circuit for generating a signal by shifting a phase of the oscillation signal output from the local oscillator by 90 degrees; a first mixer for mixing one of differential reception signals with an output signal of the first 90-degree phase-shifting circuit and outputting frequency-converted differential signals; and a second mixer for mixing another one of the differential reception signals with an output signal of the local oscillator and outputting frequency-converted differential signals.

摘要翻译： 本发明提供一种能够减少差分信号与正交信号之间的偏移并提高制造成品率的接收系统和发送系统，以及用于处理其中具有系统的无线通信信号的半导体集成电路装置。 接收系统包括：本地振荡器，用于产生期望频率的振荡信号; 用于通过将从本地振荡器输出的振荡信号的相位相移90度来产生信号的90度相移电路; 第一混频器，用于将差分接收信号中的一个与第一90度移相电路的输出信号混频并输出经频率转换的差分信号; 以及第二混频器，用于将另一个差分接收信号与本地振荡器的输出信号混频并输出经变频的差分信号。

公开(公告)号：US06628361B2

公开(公告)日：2003-09-30

申请号：US09790638

申请日：2001-02-23

申请人： Takuya Takahashi ,  Yoichi Sakaki ,  Isao Ikuta ,  Katsumi Tamura ,  Ken-ichi Onisawa

发明人： Takuya Takahashi ,  Yoichi Sakaki ,  Isao Ikuta ,  Katsumi Tamura ,  Ken-ichi Onisawa

IPC分类号： G02F11343

CPC分类号： G02F1/136286 ,  G02F2001/13629 ,  G02F2001/136295

摘要： A wiring structure is provided, the wiring structure being formed by forming a laminated film of silver (Ag) or an alloy containing silver (Ag) as the major constituent and the other metallic material, and by forming a wiring pattern through a single process of photolithography. The wiring structure comprises a plurality of first parallel wires; a plurality of second parallel wires intersecting with the first parallel wires; and a plurality of active elements, each of the active elements being arranged at a position near an intersection of the first parallel wire and the second parallel wire and connected to the first parallel wire and the second parallel wire, wherein part or all of the first parallel wires and the second parallel wires are of a laminated structure of a layer made of silver (Ag) or an alloy containing silver (Ag) as a major constituent and a layer made of a metallic element having standard electrode potential of dissolution reaction lower than the standard electrode potential of silver (Ag) or an alloy containing said metallic element as a major constituent, and are formed through a single process of photolithography.

摘要翻译： 提供一种布线结构，该布线结构通过以下方式形成：银（Ag）或含有银（Ag）的合金作为主要成分和另一种金属材料的叠层膜，并通过单一工艺形成布线图案 布线结构包括多个第一平行线; 与所述第一平行线相交的多个第二平行线; 以及多个有源元件，所述有源元件中的每一个被布置在靠近所述第一平行线和所述第二平行线的交叉点并且连接到所述第一平行线和所述第二平行线的位置，其中所述第一平行线和所述第二平行线的部分或全部 平行线和第二平行线是由银（Ag）或含有银（Ag）作为主要成分的合金层构成的层的层压结构，以及由金属元素制成的层，其具有溶解反应的标准电极电位低于 银（Ag）或包含所述金属元素作为主要成分的合金的标准电极电位，并且通过单一光刻工艺形成。

公开(公告)号：US5572502A

公开(公告)日：1996-11-05

申请号：US313803

申请日：1994-09-28

申请人： Atsuko Naruse ,  Yoshihito Maeda ,  Yoshimi Kato ,  Isao Ikuta ,  Hisashi Andoh ,  Masaichi Nagai ,  Yoshio Sato ,  Tetsuya Fushimi ,  Hiroyuki Minemura ,  Tatsuya Sugita

发明人： Atsuko Naruse ,  Yoshihito Maeda ,  Yoshimi Kato ,  Isao Ikuta ,  Hisashi Andoh ,  Masaichi Nagai ,  Yoshio Sato ,  Tetsuya Fushimi ,  Hiroyuki Minemura ,  Tatsuya Sugita

IPC分类号： G11B7/006 ,  G11B7/013 ,  G11B7/125 ,  G11B11/105 ,  G11B19/00 ,  G11B19/04 ,  G11B20/12 ,  G11B20/14 ,  G11B27/30 ,  G11B7/00

CPC分类号： G11B7/126 ,  G11B11/10506 ,  G11B11/10517 ,  G11B11/10595 ,  G11B19/00 ,  G11B19/04 ,  G11B20/10055 ,  G11B20/1403 ,  G11B27/3027 ,  G11B7/006 ,  G11B7/24085 ,  G11B20/1258 ,  G11B2220/20 ,  G11B7/24088

摘要： An optical disk apparatus includes a recording method in which at least one of the scanning position, the irradiation time, the irradiation start point and the irradiation power of a light beam is arbitrarily changed, and a method and apparatus in which information is represented by a plurality of recording marks without being limited to two kinds of recording and erasion. In order to prevent overlapping recording/erasion, a recording clock generating unit delays a reference clock signal to generate a recording clock signal and a recording control unit transfers user data to an optical head in synchronism with the recording clock signal so that it is recorded on an optical disk. Also, the amount of delay is recorded to enable sure reading or reproduction. At the time of reading, a servo mark detection signal is divided to generate a clock signal having a variable frequency, thereby realizing an optical disk for which high-precision recording/reproduction is possible.

摘要翻译： 光盘装置包括其中任意改变扫描位置，照射时间，照射开始点和光束的照射功率中的至少一个的记录方法，以及其中信息由 多个记录标记，而不限于两种记录和擦除。 为了防止重叠的记录/擦除，记录时钟产生单元延迟参考时钟信号以产生记录时钟信号，并且记录控制单元与记录时钟信号同步地将用户数据传送到光头，使得其被记录在 光盘。 此外，记录延迟量以确保读取或再现。 在读取时，分割伺服标记检测信号以产生具有可变频率的时钟信号，从而实现可以进行高精度记录/再现的光盘。

公开(公告)号：US5475656A

公开(公告)日：1995-12-12

申请号：US755179

申请日：1991-09-05

申请人： Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

发明人： Yoshio Sato ,  Nobuyoshi Tsuboi ,  Hiroyuki Minemura ,  Hisashi Andoh ,  Masaichi Nagai ,  Isao Ikuta ,  Yoshimi Kato ,  Yoshihito Maeda ,  Tatsuya Sugita ,  Yutaka Sugita

IPC分类号： G11B7/0033 ,  G11B7/0037 ,  G11B7/0045 ,  G11B7/0055 ,  G11B7/24 ,  G11B11/105 ,  G11B19/00 ,  G11B23/03 ,  G11B7/00

CPC分类号： G11B23/0321 ,  G11B11/10506 ,  G11B11/10521 ,  G11B11/10584 ,  G11B11/10595 ,  G11B19/00 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/24

摘要： The information processor uses a portable memory formed on a transparent substrate which is able to be overwritten by laser power modulation system. The memory includes a disk type recording medium rotatably incorporated within a thin case, and carries out write/read/erase by means of a first magnetic field application device, a second magnetic field application device, and an optical head radiating light through the case which has at least a transparent light-incident portion. The case includes therein a rotation means for rotating the recording medium within the case, thereby enabling even further reduction in size of the information processor.

摘要翻译： 信息处理器使用形成在能够被激光功率调制系统覆盖的透明基板上的便携式存储器。 存储器包括可旋转地结合在薄壳体内的盘式记录介质，并且通过第一磁场施加装置，第二磁场施加装置和通过壳体辐射光的光头进行写入/读取/擦除 具有至少透明的光入射部分。 该壳体包括用于使记录介质在壳体内旋转的旋转装置，从而能够进一步减小信息处理器的尺寸。

公开(公告)号：US5420845A

公开(公告)日：1995-05-30

申请号：US900497

申请日：1992-06-18

申请人： Yoshihito Maeda ,  Isao Ikuta ,  Masaichi Nagai ,  Yoshimi Kato ,  Hisashi Andoh ,  Nobuo Tsukamoto

发明人： Yoshihito Maeda ,  Isao Ikuta ,  Masaichi Nagai ,  Yoshimi Kato ,  Hisashi Andoh ,  Nobuo Tsukamoto

IPC分类号： G11B7/0055 ,  G11B7/24

CPC分类号： G11B7/00557 ,  Y10S430/146

摘要： High density optical information recording even at room temperature is achieved by control of the diameter of crystalline portions exhibiting quantum size effects of fine semiconductor particles distributed in a dielectric matrix, using the non-crystalline to crystalline phase transition of the fine particles. The quantum size effects mean that the optical properties of the medium depend on the diameter of the crystalline portions. Various methods of recording, reproducing and erasing information using this optical recording medium are possible. The invention is applicable to other optical devices.

摘要翻译： 通过使用微细颗粒的非晶态至晶相转变，通过控制显示分散在电介质基质中的精细半导体颗粒的量子尺寸效应的结晶部分的直径来实现甚至在室温下的高密度光学信息记录。 量子尺寸效应意味着介质的光学性质取决于晶体部分的直径。 可以使用这种光记录介质记录，再现和擦除信息的各种方法。 本发明适用于其他光学装置。

公开(公告)号：US07418250B2

公开(公告)日：2008-08-26

申请号：US11704356

申请日：2007-02-09

申请人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

发明人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

IPC分类号： H04B1/26 ,  H04B1/28 ,  H03D3/00 ,  H02M11/00

CPC分类号： H03D7/165 ,  H03D2200/0019

摘要： Because there are different voltages at two current output terminals of a current divider, the voltages at the current input terminals of two current switch circuits are not affected mutually even with a large amplitude of local signals. Accordingly, the performance of a quadrature mixer can be enhanced by increasing the amplitude of the local signals. Bias currents are supplied to the two current switch circuits through the current divider from a common DC current source which essentially supplies a bias current to a V/I converter and, therefore, power consumption is reduced.

摘要翻译： 由于在分压器的两个电流输出端子处存在不同的电压，所以即使在大幅度的本地信号的情况下，两个电流开关电路的电流输入端子处的电压也不会相互影响。 因此，可以通过增加本地信号的振幅来增强正交混频器的性能。 通过来自公共DC电流源的分流器将偏置电流提供给两个电流开关电路，其基本上向V / I转换器提供偏置电流，因此降低功耗。

公开(公告)号：US20070135074A1

公开(公告)日：2007-06-14

申请号：US11704356

申请日：2007-02-09

申请人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

发明人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

IPC分类号： H04B1/26 ,  H04B15/00

CPC分类号： H03D7/165 ,  H03D2200/0019

摘要： Because there are different voltages at two current output terminals of a current divider, the voltages at the current input terminals of two current switch circuits are not affected mutually even with a large amplitude of local signals. Accordingly, the performance of a quadrature mixer can be enhanced by increasing the amplitude of the local signals. Bias currents are supplied to the two current switch circuits through the current divider from a common DC current source which essentially supplies a bias current to a V/I converter and, therefore, power consumption is reduced.

公开(公告)号：US07184739B2

公开(公告)日：2007-02-27

申请号：US10706278

申请日：2003-11-13

申请人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

发明人： Yutaka Igarashi ,  Isao Ikuta ,  Akio Yamamoto

IPC分类号： H04B1/26 ,  H04B1/28 ,  H03D3/00 ,  H02M11/00

CPC分类号： H03D7/165 ,  H03D2200/0019

摘要： Because there are different voltages at two current output terminals of a current divider, the voltages at the current input terminals of two current switch circuits are not affected mutually even with a large amplitude of local signals. Accordingly, the performance of a quadrature mixer can be enhanced by increasing the amplitude of the local signals. Bias currents are supplied to the two current switch circuits through the current divider from a common DC current source which essentially supplies a bias current to a V/I converter and, therefore, power consumption is reduced.

摘要翻译： 由于在分压器的两个电流输出端子处存在不同的电压，所以即使在大幅度的本地信号的情况下，两个电流开关电路的电流输入端子处的电压也不会相互影响。 因此，可以通过增加本地信号的振幅来增强正交混频器的性能。 通过来自公共DC电流源的分流器将偏置电流提供给两个电流开关电路，其基本上向V / I转换器提供偏置电流，因此降低功耗。

公开(公告)号：US20060128334A1

公开(公告)日：2006-06-15

申请号：US11170086

申请日：2005-06-30

申请人： Isao Ikuta ,  Akio Yamamoto ,  Yutaka Igarashi ,  Stephen Goodwin

发明人： Isao Ikuta ,  Akio Yamamoto ,  Yutaka Igarashi ,  Stephen Goodwin

IPC分类号： H04B1/06 ,  H04B7/00

CPC分类号： H03G3/3052 ,  H03G1/0088

摘要： To reduce circuit area and power consumption and suppress transient response occurring at switching in PGA of a programmable gain amplifier is provided a wireless communication receiver comprising PGAs for adjusting the gain of a received signal down-converted by mixers and sending it to base-band block. Within PGAs are provided HPFATT circuits formed of capacitors arranged in series, and ladder resistors arranged in parallel, with signal lines, and a plurality of switches. HPFATT is a circuit serving as a high-pass filter and an attenuator for gain switching, wherein switches are controlled by control signal sg from a controller. Amplifiers connected to the rear stage of the HPFATT circuit are formed of MOS transistors.

摘要翻译： 为了减少电路面积和功率消耗并抑制在可编程增益放大器的PGA中切换时发生的瞬态响应，提供了一种包括用于调节被混频器下变频的接收信号的增益的PGA的无线通信接收机，并将其发送到基带块 。 在PGA中提供由串联布置的电容器构成的HPFATT电路和与信号线并联布置的梯形电阻器以及多个开关。 HPFATT是用作高通滤波​​器和用于增益切换的衰减器的电路，其中开关由来自控制器的控制信号sg控制。 连接到HPFATT电路的后级的放大器由MOS晶体管形成。

公开(公告)号：US20050118976A1

公开(公告)日：2005-06-02

申请号：US10842445

申请日：2004-05-11

申请人： Motoki Murakami ,  Yutaka Igarashi ,  Akio Yamamoto ,  Isao Ikuta ,  Yoshiaki Harasawa

发明人： Motoki Murakami ,  Yutaka Igarashi ,  Akio Yamamoto ,  Isao Ikuta ,  Yoshiaki Harasawa

IPC分类号： H04B1/30 ,  H04B1/16 ,  H03H11/16 ,  H03K3/00 ,  H03K5/13

CPC分类号： H04B1/30

摘要： The invention provides a receiving system and a transmitting system capable of decreasing an offset between differential signals and between quadrature signals and improving a manufacturing yield and a semiconductor integrated circuit device for processing a wireless communication signal having therein the systems. A receiving system includes: a local oscillator for generating an oscillation signal in a desired frequency; a 90-degree phase-shifting circuit for generating a signal by shifting a phase of the oscillation signal output from the local oscillator by 90 degrees; a first mixer for mixing one of differential reception signals with an output signal of the first 90-degree phase-shifting circuit and outputting frequency-converted differential signals; and a second mixer for mixing another one of the differential reception signals with an output signal of the local oscillator and outputting frequency-converted differential signals.

摘要翻译： 本发明提供一种能够减少差分信号与正交信号之间的偏移并提高制造成品率的接收系统和发送系统，以及用于处理其中具有系统的无线通信信号的半导体集成电路装置。 接收系统包括：本地振荡器，用于产生期望频率的振荡信号; 用于通过将从本地振荡器输出的振荡信号的相位相移90度来产生信号的90度相移电路; 第一混频器，用于将差分接收信号中的一个与第一90度移相电路的输出信号混频并输出经频率转换的差分信号; 以及第二混频器，用于将另一个差分接收信号与本地振荡器的输出信号混频并输出经变频的差分信号。