专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07120893B2 System and method for evaluation of electric characteristics of printed-circuit boards 有权
公开(公告)号：US07120893B2
公开(公告)日：2006-10-10
申请号：US10291539
申请日：2002-11-12
申请人： Hideki Sasaki , Takashi Harada
发明人： Hideki Sasaki , Takashi Harada
IPC分类号： G06F17/50
CPC分类号： G06F17/5036 , H05K1/0231 , H05K3/0005
摘要： A printed-circuit board characteristic evaluation system is basically configured by an input device, a data processing device, a storage device and an output device. Herein, the input device inputs layout information representing an overall layout of a printed-circuit board installing at least one active component, from which layout information data regarding a power supply circuit is extracted and is stored in the storage device. The layout information data is converted to electric circuit information representing an equivalent circuit model with respect to a selected side of the printed-circuit board. Then, calculations are performed based on the layout information data to produce impedance characteristics with respect to the power supply circuit. A decision is made as to whether resonance is caused to occur in the power supply circuit on the basis of results of comparison of the impedance characteristics. The output device outputs the impedance characteristics as well as resonance information. If it is determined that resonance is caused to occur in the power supply circuit, the system changes the layout information, from which new layout information data is being extracted. In addition, a resonance suppression technique (e.g., installation of a decoupling capacitor) is applied to a certain point of the power supply circuit or a prescribed power terminal connecting position. Thus, the system is capable of performing evaluation as to whether printed-circuit boards are well designed to suppress variations of power voltages while inhibiting radiation of unwanted electromagnetic waves from occurring due to resonance of power supply circuits.

2. 发明授权

US06774641B2 Printed circuit board design support apparatus, method, and program 有权
标题翻译：印刷电路板设计支持设备，方法和程序
公开(公告)号：US06774641B2
公开(公告)日：2004-08-10
申请号：US10173007
申请日：2002-06-18
申请人： Hideki Sasaki , Takahiro Yaguchi , Akira Wakui , Seishi Eya , Takashi Harada , Toshihide Kuriyama
发明人： Hideki Sasaki , Takahiro Yaguchi , Akira Wakui , Seishi Eya , Takashi Harada , Toshihide Kuriyama
IPC分类号： G01R2728
CPC分类号： G06F17/5036
摘要： In a printed circuit board design support apparatus for supporting design of a printed circuit board by calculating a radiation amount of electromagnetic radiation caused by an interconnection on the basis of design information related to each of the printed circuit board having a ground plane, interconnections formed on the printed circuit board, and components to be mounted on the printed circuit board, an arithmetic unit calculates a common mode (CM) radiation amount of the interconnection on the basis of a CM radiation amount ratio that indicates a ratio of a common mode (CM) radiation amount of electromagnetic radiation caused by the ground plane in correspondence with the interconnection to a differential mode (DM) radiation amount of electromagnetic radiation caused by the interconnection. A printed circuit board design support method and program are also disclosed.
摘要翻译：在印刷电路板设计支持装置中，用于通过基于与具有接地平面的印刷电路板相关的设计信息计算由互连引起的电磁辐射的辐射量来支持印刷电路板的设计，在印刷电路板和要安装在印刷电路板上的部件，运算单元基于指示共模（CM）的比率的CM辐射量比率来计算互连的共模（CM）辐射量）由与互连造成的电磁辐射辐射量对应于由互连造成的电磁辐射的差分模式（DM）辐射量的对应。还公开了印刷电路板设计支持方法和程序。

3. 发明授权

US06754876B2 System and method for designing a printed board adapted to suppress electromagnetic interference 有权
标题翻译：用于设计适合于抑制电磁干扰的印刷电路板的系统和方法
公开(公告)号：US06754876B2
公开(公告)日：2004-06-22
申请号：US09902642
申请日：2001-07-12
申请人： Hideki Sasaki , Takashi Harada , Toshihide Kuriyama
发明人： Hideki Sasaki , Takashi Harada , Toshihide Kuriyama
IPC分类号： G06F1750
CPC分类号： G06F17/5068 , H05K1/0216 , H05K3/0005
摘要： A design support system utilizes an information processor for supporting a printed board design. The design support system includes a first unit for designing a printed board that includes at least a ground layer. The design support system also includes a second unit for finding at least one resonant frequency for the ground layer based on information of a resonance-significant size of the ground layer. This information can be used to suppress electromagnetic interference from a printed board.
摘要翻译：设计支持系统利用信息处理器来支持印刷电路板设计。设计支持系统包括用于设计至少包括接地层的印刷电路板的第一单元。设计支持系统还包括第二单元，用于基于接地层的共振 - 有效尺寸的信息找到至少一个接地层的谐振频率。该信息可用于抑制印刷电路板的电磁干扰。

4. 发明授权

US06557154B1 Printed circuit board design support system, printed circuit board design method and storage medium storing control program for same 有权
标题翻译：印刷电路板设计支持系统，印刷电路板设计方法和存储介质存储控制程序相同
公开(公告)号：US06557154B1
公开(公告)日：2003-04-29
申请号：US09718431
申请日：2000-11-24
申请人： Takashi Harada , Hideki Sasaki , Eiji Hankui , Kiyoshi Asao
发明人： Takashi Harada , Hideki Sasaki , Eiji Hankui , Kiyoshi Asao
IPC分类号： G06F1750
CPC分类号： G06F17/5068 , G06F17/5036 , H05K1/0231 , H05K3/0005
摘要： A PCB (Printed Circuit Board) design support system and a PCB design method reduce radiation of electromagnetic waves by optimizing layout of a substrate while following a conventional method for designing a PCB and maintaining a conventional structure. The PCB design support system includes an input information section for a ground plane structure, power plane structure and layout of a PCB, a circuit model section for calculating voltages between the ground plane and power plane and distribution of currents flowing on the ground plane and power plane using input information, a frequency selection section and a section to display obtained voltage and current distribution in a form of two-dimensional voltage and current distribution maps corresponding to shapes of the PCB. The PCB design support system enables a via-hole disposed between planes and/or wiring installed between planes causing variations in voltages to be specified in a precautionary manner from a PCB design stage.
摘要翻译： PCB（印刷电路板）设计支持系统和PCB设计方法通过优化基板的布局，同时遵循用于设计PCB并维持传统结构的常规方法来减少电磁波的辐射。 PCB设计支持系统包括用于接地平面结构的输入信息部分，PCB的电源平面结构和布局，用于计算接地层和电源平面之间的电压的电路模型部分以及在地面上流动的电流的分布和功率使用输入信息的平面，频率选择部分和以与PCB的形状对应的二维电压和电流分布图的形式显示所获得的电压和电流分布的部分。 PCB设计支持系统使得布置在平面之间的通孔和/或安装在平面之间的布线导致电压的变化以预防方式从PCB设计阶段指定。

5. 发明授权

US06546528B1 System and method for evaluation of electric characteristics of printed-circuit boards 有权
标题翻译：印刷电路板电气特性评估系统及方法
公开(公告)号：US06546528B1
公开(公告)日：2003-04-08
申请号：US09551838
申请日：2000-04-18
申请人： Hideki Sasaki , Takashi Harada
发明人： Hideki Sasaki , Takashi Harada
IPC分类号： G06F1750
CPC分类号： G06F17/5036 , H05K1/0231 , H05K3/0005
摘要： A printed-circuit board characteristic evaluation system is basically configured by an input device, a data processing device, a storage device and an output device. Herein, the input device inputs layout information representing an overall layout of a printed-circuit board installing at least one active component, from which layout information data regarding a power supply circuit is extracted and is stored in the storage device. The layout information data is converted to electric circuit information representing an equivalent circuit model with respect to a selected side of the printed-circuit board. Then, calculations are performed based on the layout information data to produce impedance characteristics with respect to the power supply circuit. A decision is made as to whether resonance is caused to occur in the power supply circuit on the basis of results of comparison of the impedance characteristics. The output device outputs the impedance characteristics as well as resonance information.
摘要翻译：印刷电路板特性评估系统基本上由输入装置，数据处理装置，存储装置和输出装置构成。这里，输入装置输入表示安装有至少一个有源部件的印刷电路板的总体布局的布局信息，从该部件中提取关于电源电路的布局信息数据并将其存储在存储装置中。布局信息数据被转换为表示相对于印刷电路板的选定侧的等效电路模型的电路信息。然后，基于布局信息数据进行计算，以产生相对于电源电路的阻抗特性。根据阻抗特性的比较结果，判断在电源电路中是否发生谐振。输出装置输出阻抗特性以及共振信息。

6. 发明授权

US06598208B2 Design and assisting system and method using electromagnetic position 有权
标题翻译：使用电磁位置设计和辅助系统和方法
公开(公告)号：US06598208B2
公开(公告)日：2003-07-22
申请号：US09794918
申请日：2001-02-28
申请人： Hideki Sasaki , Takashi Harada , Toshihide Kuriyama
发明人： Hideki Sasaki , Takashi Harada , Toshihide Kuriyama
IPC分类号： G06F1750
CPC分类号： G06F17/5036 , G06F17/5068 , H05K1/0216 , H05K3/0005
摘要： A design assisting system is constructed as a CAD (computer-aided design) system for assisting in designing printed-circuit boards or other electronic devices. The system makes it possible to design layouts for reducing an unwanted electromagnetic radiation due to a common-mode current. The system has a first tool for converting at least a set of an electronic device, an interconnection, and a ground plane from layout information of a circuit board into a model for analyzing an electromagnetic field, a second tool for specifying a frequency and calculating a magnetic field intensity distribution near the ground plane using the model, and a third tool for superposing the calculated magnetic field intensity distribution and the position of the interconnection, determining whether a position where a magnetic field or a current is strong and the position of the interconnection are close to each other or not, and outputting a determined result.
摘要翻译：设计辅助系统被构造为用于辅助设计印刷电路板或其他电子设备的CAD（计算机辅助设计）系统。该系统使得可以设计用于减少由共模电流引起的不期望的电磁辐射的布局。该系统具有用于将至少一组电子设备，互连和接地平面从电路板的布局信息转换为用于分析电磁场的模型的第一工具，用于指定频率并计算频率的第二工具使用该模型在接地平面附近的磁场强度分布，以及用于叠加计算出的磁场强度分布和互连位置的第三工具，确定磁场或电流强度的位置以及互连的位置彼此接近，并且输出确定的结果。

7. 发明授权

US06519741B2 Power decoupling circuit generating system and power decoupling circuit generating method 有权
标题翻译：电源去耦电路产生系统和电源去耦电路产生方法
公开(公告)号：US06519741B2
公开(公告)日：2003-02-11
申请号：US09764282
申请日：2001-01-19
申请人： Takahiro Yaguchi , Kiyoshi Asao , Hideki Sasaki , Takashi Harada
发明人： Takahiro Yaguchi , Kiyoshi Asao , Hideki Sasaki , Takashi Harada
IPC分类号： G06F1750
CPC分类号： G06F17/5063 , H05K1/0231 , H05K3/0005
摘要： Disclosed is a power decoupling circuit generating system and method capable of easily generating a power decoupling circuit for each device such as an LSI. On the basis of information regarding parameters of generating a power decoupling circuit held in a capacitor parts library and a line calculation parameter file, a power decoupling circuit of a &pgr;-type low pass filter construction having first and second decoupling capacitors to be added to a power supply terminal of a device as a target from which high frequency noise is prevented from being passed to a power plane and a power line corresponding to an inductance is automatically generated by a power decoupling circuit generating unit, thereby making calculation for generating the power decoupling circuit unnecessary.
摘要翻译：公开了能够容易地为诸如LSI的每个设备产生功率去耦电路的功率去耦电路产生系统和方法。基于产生保持在电容器部件库中的电源去耦电路的参数的信息和行计算参数文件，具有第一和第二去耦电容器的π型低通滤波器结构的功率去耦电路被添加到作为防止高频噪声被传递到电源面的设备的电源端子，并且由电源解耦电路产生单元自动产生与电感相对应的电力线，由此进行用于产生电力去耦的计算电路不必要

8. 发明授权

US06515868B1 Printed circuit board 有权
标题翻译：印刷电路板
公开(公告)号：US06515868B1
公开(公告)日：2003-02-04
申请号：US09688047
申请日：2000-10-12
申请人： Hideki Sasaki , Shuichi Oe , Shunji Sato , Takahiko Kikukawa , Hideaki Kobayashi , Takashi Harada , Yuki Takahashi
发明人： Hideki Sasaki , Shuichi Oe , Shunji Sato , Takahiko Kikukawa , Hideaki Kobayashi , Takashi Harada , Yuki Takahashi
IPC分类号： H05K702
CPC分类号： H05K1/0231 , H05K1/165 , H05K2201/09263 , H05K2201/09309 , H05K2201/0949 , H05K2201/10522 , H05K2201/10689
摘要： Printed circuit board 1 on which LSI2 is mounted comprises first capacitors 4a and 4b for electrically connecting power source terminals 3a and 3b to via holes 8b, first power source wiring 5a, second power source wiring 6a and a second capacitor 7a. In a predetermined frequency range, the characteristic impedances in power source wirings 5a and 6a are set to three times or more higher than the impedances in capacitors 4a, 4b and 7a. In addition, the lengths of power source wirings 5a and 6a are set to equal to or larger than a value obtained by multiplying 20 mm by the wavelength reduction rate of the printed circuit board and equal to or smaller than a value obtained by multiplying one quarter the wavelength at the upper limit frequency in the predetermined frequency range by the wavelength reduction rate.
摘要翻译：安装有LSI2的印刷电路板1包括用于将电源端子3a和3b电连接到通孔8b，第一电源布线5a，第二电源布线6a和第二电容器7a的第一电容器4a和4b。在规定的频率范围内，电源配线5a，6a的特性阻抗为电容器4a，4b，7a的阻抗的3倍以上。此外，电源配线5a，6a的长度设定为等于或大于通过将20mm乘以印刷电路板的波长缩短率而获得的值等于或小于通过乘以四分之一获得的值在预定频率范围内的上限频率处的波长为波长缩短率。

9. 发明授权

US06297965B1 Wiring arrangement including capacitors for suppressing electromagnetic wave radiation from a printed circuit board 有权
标题翻译：布线布置包括用于抑制印刷电路板的电磁波辐射的电容器
公开(公告)号：US06297965B1
公开(公告)日：2001-10-02
申请号：US09340053
申请日：1999-06-28
申请人： Hideki Sasaki , Takashi Harada
发明人： Hideki Sasaki , Takashi Harada
IPC分类号： H05K702
CPC分类号： H05K9/0066 , H05K1/023 , H05K1/0231 , H05K2201/10022 , H05K2201/10522 , H05K2201/10636 , H05K2201/10689 , Y02P70/611
摘要： Disclosed herein is a printed circuit board comprising a ground layer and a signal layer in which the characteristic impedance of a specific source line is made to be not less than three times as large as the impedance at an upper limit frequency at which the electromagnetic wave radiation of a specific capacitor may occur. In this printed circuit board, variation of a power source voltage and unnecessary electromagnetic wave radiation can be suppressed.
摘要翻译：这里公开了一种印刷电路板，其包括接地层和信号层，其中特定源极线的特性阻抗被制成不小于电磁波辐射的上限频率处的阻抗的三倍可能会发生特定的电容器。在该印刷电路板中，可以抑制电源电压的变化和不必要的电磁波辐射。

10. 发明授权

US5966294A Printed circuit board for prevention of unintentional electromagnetic interference 失效
标题翻译：用于防止意外电磁干扰的印刷电路板
公开(公告)号：US5966294A
公开(公告)日：1999-10-12
申请号：US991895
申请日：1997-12-16
申请人： Takashi Harada , Hideki Sasaki
发明人： Takashi Harada , Hideki Sasaki
IPC分类号： H05K3/46 , H05K1/02 , H05K1/16 , H05K3/40 , H05K9/00 , H05K7/02
CPC分类号： H05K1/0234 , H05K1/0233 , H05K1/167 , H05K9/0039 , H05K1/0231 , H05K2201/086 , H05K2201/09309 , H05K2201/09354 , H05K2201/10022 , H05K2201/10446 , H05K2201/10522 , H05K2201/10636 , H05K3/403 , Y02P70/611
摘要： There is provided a printed circuit board including (a) at least one dielectric layer, (b) at least two metal layers one of which acts as a ground layer, another one of which acts as a power-supplying layer, and the others of which, if any, act as a wiring layer in which a signal pattern is formed, the dielectric layer and the metal layers being alternately formed one on another, and (c) at least one resistor disposed at a marginal end of the printed circuit board between the ground layer and the power-supplying layer, the resistor having a function of disallowing current communication between the ground layer and the power-supplying layer. The above-mentioned printed circuit board prevents fluctuation in a voltage between ground and a power-supply, and further prevents unintentional electromagnetic interference and circuit malfunction caused by invasion of external electromagnetic field thereinto.
摘要翻译：提供了一种印刷电路板，包括：（a）至少一个介电层，（b）至少两个金属层，其中一个用作接地层，另一个用作供电层，其余的如果有的话，其作为其中形成信号图案的布线层，电介质层和金属层彼此交替地形成，并且（c）至少一个电阻器设置在印刷电路板的边缘端在接地层和供电层之间，电阻器具有不允许接地层和供电层之间的电流连通的功能。上述印刷电路板防止接地和电源之间的电压波动，并且进一步防止由于外部电磁场的侵入引起的无意的电磁干扰和电路故障。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式