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1. 发明授权

US11183858B2 Rechargeable battery protection circuit, rechargeable battery protection device, battery pack, and method of controlling rechargeable battery protection circuit 有权
公开(公告)号：US11183858B2
公开(公告)日：2021-11-23
申请号：US16455981
申请日：2019-06-28
申请人： Takashi Takeda
发明人： Takashi Takeda
IPC分类号： H02J7/00 , H01M10/42 , H01M10/48 , H03K17/687
摘要： A rechargeable battery protection circuit protects a rechargeable battery, using two NMOS transistors inserted in series in a current path between a battery cathode and a positive terminal connected to load or power terminal of a charger. The protection circuit includes a booster circuit that generates a control voltage, using input capacitances of the NMOS transistors having gates connected to charge and discharge control terminals, respectively. A driving circuit sets the output state of the control terminals to a high level, by supplying the control voltage to the control terminals, a detection circuit detects a battery state and outputs a detection state, and a control circuit operates the driving circuit based on the detection state, so that the output state of the control terminals is selected by the driving circuit to at least one of three states including a high level, a low level, and a high-impedance state.

2. 发明授权

US10355499B2 Battery protection circuit, battery protection apparatus, and battery pack 有权
公开(公告)号：US10355499B2
公开(公告)日：2019-07-16
申请号：US14876918
申请日：2015-10-07
申请人： Takashi Takeda , Ryota Kageyama , Koichi Murano , Junji Takeshita , Takeshi Yamaguchi , Takatoshi Itagaki , Koji Yano
发明人： Takashi Takeda , Ryota Kageyama , Koichi Murano , Junji Takeshita , Takeshi Yamaguchi , Takatoshi Itagaki , Koji Yano
IPC分类号： H02J7/00 , H01M10/42 , H01M10/44 , H01M10/48
摘要： A battery protection circuit for protecting a secondary battery, the battery protection circuit not having a CPU, includes a non-volatile memory into which characteristics data determining protective characteristics of the battery protection circuit are writable; and a protection operation circuit which performs a protection operation of the secondary battery based on the characteristics data read out of the non-volatile memory.

3. 发明授权

US09553469B2 Method of overcurrent detection voltage correction and battery protection integrated circuit 有权
标题翻译：过电流检测电压校正方法及电池保护集成电路
公开(公告)号：US09553469B2
公开(公告)日：2017-01-24
申请号：US14865167
申请日：2015-09-25
申请人： Ryota Kageyama , Tsutomu Yamauchi , Norihito Kawaguchi , Nobuhito Tanaka , Takashi Takeda , Yoshihiro Satake , Takeshi Yamaguchi , Koji Koshimizu
发明人： Ryota Kageyama , Tsutomu Yamauchi , Norihito Kawaguchi , Nobuhito Tanaka , Takashi Takeda , Yoshihiro Satake , Takeshi Yamaguchi , Koji Koshimizu
IPC分类号： H02J7/00
CPC分类号： H02J7/0029 , H02J2007/0037 , H02J2007/0039 , H02J2007/004
摘要： There is provided a method of correcting an overcurrent detection voltage of a battery protection integrated circuit including a current path between a first terminal and a second terminal, one or more transistors for controlling current of a secondary battery, an overcurrent detection circuit and a control circuit. The method comprises the steps of: measuring a resistance value between the first terminal and the second terminal wherein the one or more transistors are turned on at a predetermined temperature; estimating resistance values between the first terminal and the second terminal at respective temperatures based on the measured resistance value; calculating adjusting data for canceling temperature dependency of charge or discharge current of the secondary battery based on the measured resistance value and the estimated resistance values, wherein a value of the charge or discharge current varies depending on temperature; correcting the overcurrent detection voltage based on the calculated adjusting data.
摘要翻译：提供一种校正包括第一端子和第二端子之间的电流路径的电池保护集成电路的过电流检测电压的方法，用于控制二次电池的电流的一个或多个晶体管，过电流检测电路和控制电路。该方法包括以下步骤：测量第一端子和第二端子之间的电阻值，其中一个或多个晶体管在预定温度下导通; 基于所测量的电阻值，在相应的温度下估计第一端子和第二端子之间的电阻值; 基于所测量的电阻值和所估计的电阻值计算用于消除二次电池的充电或放电电流的温度依赖性的调整数据，其中充电或放电电流的值根据温度而变化; 基于计算出的调整数据来校正过电流检测电压。

4. 发明申请

US20160372954A1 METHOD OF OVERCURRENT DETECTION VOLTAGE CORRECTION AND BATTERY PROTECTION INTEGRATED CIRCUIT 有权
标题翻译：过流检测方法电压校正及电池保护集成电路
公开(公告)号：US20160372954A1
公开(公告)日：2016-12-22
申请号：US14865167
申请日：2015-09-25
申请人： Ryota KAGEYAMA , Tsutomu YAMAUCHI , Norihito KAWAGUCHI , Nobuhito TANAKA , Takashi TAKEDA , Yoshihiro SATAKE , Takeshi YAMAGUCHI , Koji KOSHIMIZU
发明人： Ryota KAGEYAMA , Tsutomu YAMAUCHI , Norihito KAWAGUCHI , Nobuhito TANAKA , Takashi TAKEDA , Yoshihiro SATAKE , Takeshi YAMAGUCHI , Koji KOSHIMIZU
IPC分类号： H02J7/00
CPC分类号： H02J7/0029 , H02J2007/0037 , H02J2007/0039 , H02J2007/004
摘要： There is provided a method of correcting an overcurrent detection voltage of a battery protection integrated circuit including a current path between a first terminal and a second terminal, one or more transistors for controlling current of a secondary battery, an overcurrent detection circuit and a control circuit. The method comprises the steps of: measuring a resistance value between the first terminal and the second terminal wherein the one or more transistors are turned on at a predetermined temperature; estimating resistance values between the first terminal and the second terminal at respective temperatures based on the measured resistance value; calculating adjusting data for canceling temperature dependency of charge or discharge current of the secondary battery based on the measured resistance value and the estimated resistance values, wherein a value of the charge or discharge current varies depending on temperature; correcting the overcurrent detection voltage based on the calculated adjusting data.
摘要翻译：提供一种校正包括第一端子和第二端子之间的电流路径的电池保护集成电路的过电流检测电压的方法，用于控制二次电池的电流的一个或多个晶体管，过电流检测电路和控制电路。该方法包括以下步骤：测量第一端子和第二端子之间的电阻值，其中一个或多个晶体管在预定温度下导通; 基于所测量的电阻值，在相应的温度下估计第一端子和第二端子之间的电阻值; 基于所测量的电阻值和所估计的电阻值计算用于消除二次电池的充电或放电电流的温度依赖性的调整数据，其中充电或放电电流的值根据温度而变化; 基于计算出的调整数据来校正过电流检测电压。

5. 发明授权

US08947052B2 Charge-discharge control circuit, semiconductor integrated circuit, method of controlling charging and discharging 有权
标题翻译：充放电控制电路，半导体集成电路，充放电控制方法
公开(公告)号：US08947052B2
公开(公告)日：2015-02-03
申请号：US13502152
申请日：2010-10-26
申请人： Akihiro Nishizawa , Takashi Takeda
发明人： Akihiro Nishizawa , Takashi Takeda
IPC分类号： H02J7/00 , H01M10/44 , H01M10/48
CPC分类号： H02J7/0016 , H01M10/441 , H01M10/482
摘要： A charge-discharge control circuit includes a cell balance detection circuit that detects that a voltage of a cell reaches a predetermined voltage; a memory circuit that stores the cell that reaches the predetermined voltage first among plural of the cells; bypass circuits respectively connected to the plural cells in parallel, each of the bypass circuits including a switch unit for bypassing the current that flows through the corresponding cell when charging; and a control circuit that controls the switch units, wherein the control circuit controls the switch unit based on the cell stored in the memory circuit so that an ON/OFF status of the switch unit is maintained from a start to an end of a next charging operation subsequent to a charging operation during which the cell is stored in the memory circuit.
摘要翻译：充放电控制电路包括：电池平衡检测电路，其检测电池电压达到预定电压; 存储电路，其存储在多个单元中首先达到预定电压的单元; 分别并联连接到多个单元的旁路电路，每个旁路电路包括用于在充电时绕过流过相应单元的电流的开关单元; 以及控制电路，其控制所述开关单元，其中所述控制电路基于存储在所述存储器电路中的单元来控制所述开关单元，使得从下一次充电的开始到结束来保持所述开关单元的接通/断开状态在该单元被存储在存储器电路中的充电操作之后的操作。

6. 发明授权

US08878541B2 Battery voltage monitoring circuit 有权
标题翻译：电池电压监控电路
公开(公告)号：US08878541B2
公开(公告)日：2014-11-04
申请号：US13278325
申请日：2011-10-21
申请人： Akihiro Nishizawa , Takashi Takeda
发明人： Akihiro Nishizawa , Takashi Takeda
IPC分类号： G01N27/416 , H01M10/42 , G01R31/36
CPC分类号： H01M10/425 , G01R31/362 , G01R31/3658
摘要： A battery voltage monitoring circuit includes a first power supply terminal to be connected to the positive terminal of a battery pack having rechargeable cells connected in series; a first supply voltage sensing terminal to be connected to the positive terminal of the battery pack; a first resistor connected between the first power supply terminal and the first supply voltage sensing terminal; a second supply voltage sensing terminal to be connected to the negative terminal of a first rechargeable cell of the rechargeable cells, the first rechargeable cell being on the positive terminal side of the battery pack and connected to the positive terminal of the battery pack; a second resistor connected between the second supply voltage sensing terminal and the first power supply terminal; and a first comparator configured to compare a voltage at the first power supply terminal and a voltage at the first supply voltage sensing terminal.
摘要翻译：电池电压监视电路包括：第一电源端子，其连接到具有可串联连接的可充电电池的电池组的正极端子; 要连接到电池组的正端子的第一电源电压感测端子; 连接在第一电源端子和第一电源电压检测端子之间的第一电阻器; 第二电源电压检测端子，连接到可再充电电池的第一可再充电电池的负极端子，第一可再充电电池位于电池组的正极侧，并连接到电池组的正极端子; 连接在第二电源电压检测端子和第一电源端子之间的第二电阻器; 以及第一比较器，被配置为比较第一电源端子处的电压和第一电源电压感测端子处的电压。

7. 发明授权

US08854735B2 Virtual image display system 有权
标题翻译：虚拟图像显示系统
公开(公告)号：US08854735B2
公开(公告)日：2014-10-07
申请号：US13355893
申请日：2012-01-23
申请人： Takahiro Totani , Masayuki Takagi , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
发明人： Takahiro Totani , Masayuki Takagi , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
IPC分类号： G02B27/14 , G02B27/01 , F21V8/00
CPC分类号： G02B27/14 , G02B6/0045 , G02B27/0172 , G02B2027/012 , G02B2027/0178
摘要： A thickness of a tapered part provided at the deeper side (−X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.
摘要翻译：在透光构件的导光方向上设置在深侧（-X侧）的锥形部的厚度朝向较深侧较小，因此，已经穿过第四反射面的重影体的反射角设置有半透半反镜层并到达透光部件的部分在锥形部分内逐渐变小，不再满足全反射条件，并且在从观察者的眼睛偏离的位置将光弹出到外部。也就是说，锥形部分可以防止鬼影光到达眼睛，并且可以实现良好的透视观察。

8. 发明授权

US08837880B2 Virtual image display device 有权
标题翻译：虚拟图像显示设备
公开(公告)号：US08837880B2
公开(公告)日：2014-09-16
申请号：US13251614
申请日：2011-10-03
申请人： Takashi Takeda , Masayuki Takagi , Toshiaki Miyao , Takahiro Totani , Akira Komatsu
发明人： Takashi Takeda , Masayuki Takagi , Toshiaki Miyao , Takahiro Totani , Akira Komatsu
IPC分类号： G02B6/32 , G02B6/24 , G02B27/22 , F21V8/00 , G02B27/01 , G02B6/00
CPC分类号： G02B27/0172 , G02B6/00 , G02B6/0006 , G02B6/0008 , G02B27/2214 , G02B2027/011 , G02B2027/0121
摘要： The invention is directed to provide a virtual image display device capable of setting the aspect ratio of the image light entering the eyes of the observer as a virtual image to a desired state while fulfilling the design limitations. In the invention, the aspect ratio of the virtual image can be converted to the aspect ratio (16:9) laterally longer than the aspect ratio (4:3) of the image area due to the conversion in the aspect ratio conversion optical system. Thus, the aspect ratio of the image light to be recognized by the eye of the observer as a virtual image can be adjusted to a desired state even in the case in which, for example, the lateral width of the image forming device with respect to the whole of the virtual image display device is limited by a design requirement.
摘要翻译：本发明旨在提供一种虚拟图像显示装置，其能够在实现设计限制的同时将进入观察者的眼睛的图像光的纵横比设置为虚像而达到期望状态。在本发明中，由于宽高比转换光学系统中的转换，虚拟图像的宽高比可以横向比长度高于图像区域的纵横比（4:3）转换成宽高比（16:9）。因此，即使在例如图像形成装置的横向宽度相对于图像形成装置的横向宽度的情况下，也可以将由观察者的眼睛识别的图像光的纵横比调整为期望的状态整个虚拟图像显示设备受到设计要求的限制。

9. 发明授权

US08780447B2 Virtual image display device and method of manufacturing the same 有权
标题翻译：虚像显示装置及其制造方法
公开(公告)号：US08780447B2
公开(公告)日：2014-07-15
申请号：US13601528
申请日：2012-08-31
申请人： Masayuki Takagi , Takahiro Totani , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
发明人： Masayuki Takagi , Takahiro Totani , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
IPC分类号： G02B27/14 , G02B27/01
CPC分类号： G02B27/0172 , G02B17/008 , Y10T29/49
摘要： In a virtual image display device, a mirror layer has a thickness of 50 nm or more to perform non-transparent reflection in a second ridge line vicinity area on a third reflection face side in a ridge line portion extending between the third reflection face and a second reflection face. Accordingly, reflectance of image light can be prevented from being decreased by the second ridge line vicinity area (that is, a peripheral portion on a light guide unit in the third reflection face), and thus stripe-shaped brightness unevenness extending in a longitudinal direction can be prevented from occurring on the viewed image. That is, in the image display device, it is possible to secure sufficient reflection even in the peripheral portion close to a boundary with the second reflection face with respect to the third reflection face, and also to display a bright image with little brightness unevenness.
摘要翻译：在虚像显示装置中，镜层的厚度为50nm以上，在第3反射面和第3反射面之间延伸的棱线部分的第3反射面侧的第2脊线附近区域进行非透明反射第二反射面。因此，可以防止图像光的反射率被第二脊线附近区域（即，第三反射面中的导光单元的周边部分）减小，并且因此在纵向方向上延伸的条形亮度不均匀可以防止在观看图像上发生。也就是说，在图像显示装置中，即使在靠近与第二反射面相对于第三反射面的边界的周边部分中也可以确保足够的反射，并且还可以显示亮度不均匀的亮度图像。

10. 发明授权

US08743465B2 Virtual image display system 有权
公开(公告)号：US08743465B2
公开(公告)日：2014-06-03
申请号：US13355893
申请日：2012-01-23
申请人： Takahiro Totani , Masayuki Takagi , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
发明人： Takahiro Totani , Masayuki Takagi , Toshiaki Miyao , Akira Komatsu , Takashi Takeda
IPC分类号： G02B27/14
摘要： A thickness of a tapered part provided at the deeper side (−X side) in a light guide direction of a light transmission member is smaller toward the deeper side, and thus, a reflection angle of ghost light that has passed through a fourth reflection surface provided with a half mirror layer and reached the light transmission member gradually becomes smaller within the tapered part and no longer satisfies a total reflection condition, and the light is ejected to the outside in the position diverging from an eye of an observer. That is, the tapered part may prevent the ghost light from reaching the eye and good see-through observation can be realized.

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