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1. 发明授权

US5034677A Bias voltage supplying circuit 失效
标题翻译：偏压供电电路
公开(公告)号：US5034677A
公开(公告)日：1991-07-23
申请号：US572134
申请日：1990-08-22
申请人： Hidenobu Ito , Fumihiko Sato
发明人： Hidenobu Ito , Fumihiko Sato
IPC分类号： H03F1/30 , G05F3/22 , G05F3/26 , G05F3/30
CPC分类号： G05F3/22 , Y10S323/901
摘要： A bias voltage supplying circuit for supplying a bias voltage includes first and second PNP type transistors having emitters coupled to a first power source terminal and bases connected to each other, where the first PNP type transistor has a collector coupled to the base thereof, first and second NPN type transistors having collectors respectively connected to collectors of the first and second PNP type transistors, emitters coupled to a second power source terminal and bases connected to each other, where the second NPN type transistor has the collector connected to the base thereof, and a diode part coupled between the emitter of the second PNP type transistor and the base of the second NPN type transistor. The diode part has an anode end coupled to the emitter of the second PNP type transistor and a cathode end coupled to the base of the second NPN type transistor, and the diode part has a forward voltage drop V.sub.D which is less than a voltage V.sub.S across the first and second power source terminals. The voltage V.sub.S is less than a sum of the forward voltage drop V.sub.D and a base-emitter voltage V.sub.BE of the second NPN type transistor.

2. 发明授权

US08856554B2 Information terminal and method of reducing information leakage 有权
标题翻译：信息终端和减少信息泄漏的方法
公开(公告)号：US08856554B2
公开(公告)日：2014-10-07
申请号：US13407929
申请日：2012-02-29
申请人： Kouichi Yasaki , Hidenobu Ito , Yousuke Nakamura , Kazuaki Nimura , Zhaogong Guo
发明人： Kouichi Yasaki , Hidenobu Ito , Yousuke Nakamura , Kazuaki Nimura , Zhaogong Guo
IPC分类号： G06F11/30 , G06F21/80 , G06F1/26 , G06F21/88
CPC分类号： G06F1/26 , G06F21/80 , G06F21/88 , G06F2221/2107 , G06F2221/2143
摘要： An information terminal includes: a storage unit to store information; a data encryption unit to encrypt the information and decrypt the encrypted information using an encryption key; a pre-deletion unit to delete the encryption key; a signal detection unit to detect an interruption signal; a pre-deletion setting unit to instruct the pre-deletion unit to delete the encryption key in response to the detection of the interruption signal; and a deletion stop unit to stop deletion of the encryption key by the pre-deletion unit.
摘要翻译：信息终端包括：存储单元，用于存储信息; 数据加密单元，用于加密信息并使用加密密钥解密加密信息; 用于删除加密密钥的预删除单元; 信号检测单元，用于检测中断信号; 预删除设置单元，用于响应于所述中断信号的检测指示所述预删除单元删除所述加密密钥; 以及删除停止单元，用于停止通过预删除单元的加密密钥的删除。

3. 发明授权

US08476881B2 Power control device, power supply device, and power control method 有权
公开(公告)号：US08476881B2
公开(公告)日：2013-07-02
申请号：US12778812
申请日：2010-05-12
申请人： Toshihiko Kasai , Hidenobu Ito
发明人： Toshihiko Kasai , Hidenobu Ito
IPC分类号： G05F1/10 , G05F1/652 , G05F1/44
摘要： A power control device for performing switching control for an output voltage of a power supply device includes a signal generation circuit for comparing a difference between a value of the output voltage and a value of a first reference voltage with a value of a second reference voltage, and for stopping the switching control when a value of the difference is less than or equal to the value of the second reference voltage, and an adjuster circuit for adjusting the second reference voltage based on a ratio between a value of an input voltage and the value of the output voltage.

4. 发明申请

US20120254637A1 INFORMATION TERMINAL AND METHOD OF REDUCING INFORMATION LEAKAGE 有权
标题翻译：信息终端和减少信息泄漏的方法
公开(公告)号：US20120254637A1
公开(公告)日：2012-10-04
申请号：US13407929
申请日：2012-02-29
申请人： Kouichi YASAKI , Hidenobu Ito , Yousuke Nakamura , Kazuaki Nimura , Zhaogong Guo
发明人： Kouichi YASAKI , Hidenobu Ito , Yousuke Nakamura , Kazuaki Nimura , Zhaogong Guo
IPC分类号： G06F21/24 , G06F21/06 , G06F1/26
CPC分类号： G06F1/26 , G06F21/80 , G06F21/88 , G06F2221/2107 , G06F2221/2143
摘要： An information terminal includes: a storage unit to store information; a data encryption unit to encrypt the information and decrypt the encrypted information using an encryption key; a pre-deletion unit to delete the encryption key; a signal detection unit to detect an interruption signal; a pre-deletion setting unit to instruct the pre-deletion unit to delete the encryption key in response to the detection of the interruption signal; and a deletion stop unit to stop deletion of the encryption key by the pre-deletion unit.
摘要翻译：信息终端包括：存储单元，用于存储信息; 数据加密单元，用于加密信息并使用加密密钥解密加密信息; 用于删除加密密钥的预删除单元; 信号检测单元，用于检测中断信号; 预删除设置单元，用于响应于所述中断信号的检测指示所述预删除单元删除所述加密密钥; 以及删除停止单元，用于停止通过预删除单元的加密密钥的删除。

5. 发明申请

US20090201618A1 POWER SUPPLY CIRCUIT, OVERCURRENT PROTECTION CIRCUIT FOR THE SAME, AND ELECTRONIC DEVICE 有权
标题翻译：电源电路，相同的过电流保护电路和电子设备
公开(公告)号：US20090201618A1
公开(公告)日：2009-08-13
申请号：US12369907
申请日：2009-02-12
申请人： Morihito Hasegawa , Hidenobu Ito , Kwok Fai Hui , Toshihiko Kasai , Katsuyuki Yasukouchi
发明人： Morihito Hasegawa , Hidenobu Ito , Kwok Fai Hui , Toshihiko Kasai , Katsuyuki Yasukouchi
IPC分类号： H02H9/08
CPC分类号： G05F1/573 , H03K17/0822
摘要： A power supply circuit includes an output transistor including a source coupled to power supply voltage, and a drain from which output voltage is outputted; a first error amplifier powered by the power supply voltage and outputting a signal based on a potential difference between the output voltage and a reference voltage; a buffer transistor including a gate coupled to the output of the first error amplifier, and a source coupled via a constant current source to the power supply voltage and coupled to a gate of the output transistor; a current detection transistor coupled to the output transistor such that a gate and source are shared; and an overcurrent protection circuit configured to limit the drain current of the buffer transistor based on the increase of the drain current of the current detection transistor and thereby control the output current of the output transistor.
摘要翻译：电源电路包括：输出晶体管，其包括耦合到电源电压的源极和从其输出输出电压的漏极; 由所述电源电压供电的第一误差放大器，并且基于所述输出电压和参考电压之间的电位差输出信号; 缓冲晶体管，其包括耦合到所述第一误差放大器的输出的栅极，以及经由恒定电流源耦合到所述电源电压并耦合到所述输出晶体管的栅极的源极; 耦合到输出晶体管的电流检测晶体管，使得门和源被共享; 以及过电流保护电路，其被配置为基于电流检测晶体管的漏极电流的增加来限制缓冲晶体管的漏极电流，从而控制输出晶体管的输出电流。

6. 发明申请

US20090051339A1 DC-DC CONVERTER AND CONTROL CIRCUIT FOR DC-DC CONVERTER 有权
标题翻译： DC-DC转换器的DC-DC转换器和控制电路
公开(公告)号：US20090051339A1
公开(公告)日：2009-02-26
申请号：US12257222
申请日：2008-10-23
申请人： Morihito Hasegawa , Chikara Tsuchiya , Hidenobu Ito
发明人： Morihito Hasegawa , Chikara Tsuchiya , Hidenobu Ito
IPC分类号： G05F1/618
CPC分类号： H02M1/38 , H03K2017/307
摘要： A DC-DC converter prevents through current from flowing in an output transistor. A first transistor receives an input voltage. A second transistor is connected to the first transistor. A comparator is connected to the second transistor. The comparator detects current flowing through a choke coil based on the potential difference between two terminals of the second transistor to generate a switching control signal for turning the second transistor on and off. The second transistor and the comparator form an ideal diode. A control circuit of the DC-DC converter generates an activation signal for turning the first transistor on and off based on a pulse signal to keep an output voltage constant. A through current prevention pulse generation circuit generates a pulse signal for turning off the second transistor from before the first transistor is turned on to after the first transistor is turned on.
摘要翻译： DC-DC转换器防止直流电流流入输出晶体管。第一晶体管接收输入电压。第二晶体管连接到第一晶体管。比较器连接到第二晶体管。比较器基于第二晶体管的两个端子之间的电位差来检测流过扼流线圈的电流，以产生用于使第二晶体管接通和关断的开关控制信号。第二个晶体管和比较器构成一个理想的二极管。 DC-DC转换器的控制电路基于脉冲信号产生用于使第一晶体管导通和截止的激活信号，以保持输出电压恒定。通过电流防止脉冲产生电路在第一晶体管导通之后到第一晶体管导通之后产生用于使第二晶体管截止的脉冲信号。

7. 发明授权

US07352163B2 Early effect cancelling circuit, differential amplifier, linear regulator, and early effect canceling method 有权
标题翻译：早期效应消除电路，差分放大器，线性稳压器和早期效应消除方法
公开(公告)号：US07352163B2
公开(公告)日：2008-04-01
申请号：US11132172
申请日：2005-05-19
申请人： Yoshihiro Kizaki , Katsuyuki Yasukouchi , Hidenobu Ito
发明人： Yoshihiro Kizaki , Katsuyuki Yasukouchi , Hidenobu Ito
IPC分类号： G05F3/04 , G05F3/08
CPC分类号： G05F1/575 , H03F3/345 , H03F3/45273 , H03F2200/303 , H03F2200/91
摘要： In an input transistor of current mirror circuit, it is intended to prevent the current generated by Early effects from appearing in the output current of the current mirror circuit. Having an Early voltage detector 22 of same connection and structure as a driver circuit 21, and connected in parallel to the driver circuit 21, the current flowing in input transistor Q9 of the Early voltage detector 22 is detected. Output current (current IQ11) of Early voltage detector 22 is added to input current (current IQ5) of driver circuit 21. As a result, in input current (current IQ7) of current mirror circuit 25, current α due to Early voltage effects can be canceled. At the same time, current α due to Early voltage effects generated in input transistor Q5 of current mirror circuit 25 is prevented from appearing in output current (current IQ8) of current mirror circuit 25.
摘要翻译：在电流镜电路的输入晶体管中，旨在防止由早期效应产生的电流出现在电流镜电路的输出电流中。具有与驱动电路21相同的连接和结构的早期电压检测器22并且并联连接到驱动器电路21，检测在早期电压检测器22的输入晶体管Q 9中流动的电流。早期电压检测器22的输出电流（电流IQ11）被加到驱动电路21的输入电流（电流IQ 5）。结果，在电流镜电路25的输入电流（电流IQ 7）中，可以消除由于早期电压效应引起的电流α。同时，由于电流镜电路25的输入晶体管Q 5中产生的早期电压效应的电流α被防止出现在电流镜电路25的输出电流（电流IQ 8）中。

8. 发明授权

US07336060B2 Circuit and method for controlling a DC-DC converter by enabling the synchronous rectifier during undervoltage lockout 有权
标题翻译：用于在欠压锁定期间使同步整流器控制DC-DC转换器的电路和方法
公开(公告)号：US07336060B2
公开(公告)日：2008-02-26
申请号：US11225186
申请日：2005-09-14
申请人： Hidenobu Ito
发明人： Hidenobu Ito
IPC分类号： G05F5/00 , H02H7/00 , H02H3/24
CPC分类号： H02M3/157 , H02M1/32 , H02M3/1588 , H03K17/22 , H03K2217/0081 , Y02B70/1466
摘要： A control circuit for a DC-DC converter that prevents a deficiency from occurring due to sudden interruption in power supply. The control circuit activates and inactivates a main switching output transistor and a synchronous rectification output transistor to convert the input voltage to an output voltage. The output voltage is smoothed by a smoothing capacitor. When the input voltage decreases, the control circuit activates the synchronous rectification output transistor to readily discharge the smoothing capacitor via the synchronous rectification output transistor.
摘要翻译：一种用于DC-DC转换器的控制电路，其防止由于电力供应突然中断而导致的不足。控制电路激活和禁用主开关输出晶体管和同步整流输出晶体管，以将输入电压转换为输出电压。输出电压由平滑电容器平滑。当输入电压降低时，控制电路激活同步整流输出晶体管，以便通过同步整流输出晶体管容易地放电平滑电容器。

9. 发明申请

US20060220631A1 Circuit and method for controlling DC-DC converter 有权
标题翻译：用于控制DC-DC转换器的电路和方法
公开(公告)号：US20060220631A1
公开(公告)日：2006-10-05
申请号：US11225186
申请日：2005-09-14
申请人： Hidenobu Ito
发明人： Hidenobu Ito
IPC分类号： G05F1/00
CPC分类号： H02M3/157 , H02M1/32 , H02M3/1588 , H03K17/22 , H03K2217/0081 , Y02B70/1466
摘要： A control circuit for a DC-DC converter that prevents a deficiency from occurring due to sudden interruption in power supply. The control circuit activates and inactivates a main switching output transistor and a synchronous rectification output transistor to convert the input voltage to an output voltage. The output voltage is smoothed by a smoothing capacitor. When the input voltage decreases, the control circuit activates the synchronous rectification output transistor to readily discharge the smoothing capacitor via the synchronous rectification output transistor.
摘要翻译：一种用于DC-DC转换器的控制电路，其防止由于电源突然中断而导致的不足。控制电路激活和禁用主开关输出晶体管和同步整流输出晶体管，以将输入电压转换为输出电压。输出电压由平滑电容器平滑。当输入电压降低时，控制电路激活同步整流输出晶体管，以便通过同步整流输出晶体管容易地放电平滑电容器。

10. 发明申请

US20050086647A1 Apparatus for and method of creating computer program specifications, and computer program product 审中-公开
标题翻译：用于制作计算机程序规范的装置和方法以及计算机程序产品
公开(公告)号：US20050086647A1
公开(公告)日：2005-04-21
申请号：US10786086
申请日：2004-02-26
申请人： Hidenobu Ito , Akihiko Matsuo , Toshiaki Gomi , Manabu Kamimura
发明人： Hidenobu Ito , Akihiko Matsuo , Toshiaki Gomi , Manabu Kamimura
IPC分类号： G06F9/44 , G06F9/40
CPC分类号： G06F8/75 , G06F9/4484
摘要： A method of creating computer program specifications includes creating the structure information that indicates a relation between program call structure and data input-output information of the computer program source code by analyzing a computer program source code. The method also includes creating process-outline information of the computer program source code from a part of the structure information, after the creating of the structure information. The method further includes creating computer program specifications of the computer program source code by using the process-outline information, after the creating of the process-outline information.
摘要翻译：一种创建计算机程序规范的方法包括通过分析计算机程序源代码来创建指示程序调用结构与计算机程序源代码的数据输入 - 输出信息之间的关系的结构信息。该方法还包括在创建结构信息之后从结构信息的一部分创建计算机程序源代码的过程大纲信息。该方法还包括在创建过程大纲信息之后通过使用过程大纲信息来创建计算机程序源代码的计算机程序规范。

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