公开(公告)号：US20080180062A1

公开(公告)日：2008-07-31

申请号：US12022584

申请日：2008-01-30

申请人： Masafumi OKUMURA

发明人： Masafumi OKUMURA

IPC分类号： G01R31/36 ,  H02J7/00 ,  H01M10/48

CPC分类号： G01R31/361

摘要： To provide a technology for obtaining a remaining capacity of a battery with high accuracy. A battery remaining capacity predicting apparatus predicting a remaining capacity of a battery based on an open-circuit voltage of the battery, detects a charge current or a discharge current of the battery, integrates the currents, obtains an estimated value of the open-circuit voltage that corresponds to an integrated value of the currents on the basis of conversion information representing a capacity necessary for the open-circuit voltage of the battery to change by a predetermined capacity, obtains a measured value of the open-circuit voltage on the basis of the detected current and information on internal impedance, and obtains the remaining capacity of the battery based on the estimated value of the open-circuit voltage by correcting the information on the internal impedance so that the measured value of the open-circuit voltage is equalized to the estimated value of the open-circuit voltage, or by correcting the conversion information so that the estimated value of the open-circuit voltage is equalized to the measured value of the open-circuit voltage.

摘要翻译： 提供用于以高精度获得电池的剩余容量的技术。 电池剩余容量预测装置基于电池的开路电压来预测电池的剩余容量，检测电池的充电电流或放电电流，对电流进行积分，求出开路电压的推定值 基于表示电池的开路电压所需的容量变化了规定的容量的转换信息，对应于电流的积分值，基于该电压值求出开路电压的测定值 检测电流和内部阻抗信息，并且通过校正内部阻抗的信息，基于开路电压的估计值来获得电池的剩余容量，使得开路电压的测量值与 或者通过校正转换信息使得开路电压的估计值 uit电压等于开路电压的测量值。

公开(公告)号：US5872445A

公开(公告)日：1999-02-16

申请号：US511350

申请日：1995-08-04

申请人： Hidekiyo Ozawa ,  Masafumi Okumura ,  Hidetoshi Yano ,  Mituo Saeki

发明人： Hidekiyo Ozawa ,  Masafumi Okumura ,  Hidetoshi Yano ,  Mituo Saeki

IPC分类号： H02J7/00 ,  H02J7/10 ,  H02J7/34 ,  H02J7/04

CPC分类号： H02J7/0068 ,  H02J7/0031 ,  Y10S320/12

摘要： A power supply device includes a secondary battery and a charger, and can further utilize an external D.C. power supply. A switch is interposed between a negative electrode of the secondary battery and the ground. This switch is turned OFF when the external D.C. power supply is connected to the power supply device, and is turned ON when the external D.C. power supply is removed from the power supply device. The charger controls the charge of the secondary battery from the external D.C. power supply by regulating the potential of the negative electrode of the battery. A contact remains OFF while the external D.C. power supply is connected to the power supply device. In consequence, a current does not directly flow from the external D.C. power supply to the secondary battery. Therefore, a back-flow prevention diode, which otherwise results in power consumption, need not be disposed between the secondary battery and the load.

摘要翻译： 电源装置包括二次电池和充电器，并且可以进一步利用外部直流电源。 在二次电池的负极和地之间插入开关。 当外部直流电源连接到电源设备时，该开关关闭，并且当外部直流电源从电源设备中拔出时，该开关接通。 充电器通过调节电池负极的电位从外部直流电源控制二次电池的充电。 当外部直流电源连接到电源设备时，触点保持关闭。 因此，电流不直接从外部直流电源流向二次电池。 因此，不需要在二次电池和负载之间设置逆流防止二极管，否则导致功率消耗。

公开(公告)号：US5625237A

公开(公告)日：1997-04-29

申请号：US496616

申请日：1995-06-29

申请人： Mituo Saeki ,  Masafumi Okumura ,  Hidekiyo Ozawa

发明人： Mituo Saeki ,  Masafumi Okumura ,  Hidekiyo Ozawa

IPC分类号： H02J7/00 ,  H02J7/02 ,  H02J7/34 ,  H02J9/00 ,  H02J9/06 ,  H02J1/16

CPC分类号： H02J7/027 ,  Y10S320/12 ,  Y10S320/21 ,  Y10T307/527 ,  Y10T307/615 ,  Y10T307/625

摘要： A power source device capable of using both an external DC power source and a battery contained therein, and an electronic device using this power source device. A circuit is provided to measure the battery voltage, to calculate the remaining capacity of the battery and to indicate the remaining capacity. Means is provided which detects the state where no battery is mounted in the power source device, and short-circuits the input side of the battery voltage-measuring circuit. When no battery is mounted, therefore, a voltage leaking from the external DC power source is not erroneously measured as the battery voltage, and the remaining amount of power of the battery is correctly calculated.

摘要翻译： 一种能够使用外部DC电源和包含在其中的电池的电源装置，以及使用该电源装置的电子装置。 提供电路来测量电池电压，以计算电池的剩余容量并指示剩余容量。 提供了检测电源装置中没有电池安装状态的装置，并且使电池电压测量电路的输入侧短路。 因此，当没有安装电池时，从外部直流电源泄漏的电压不会被作为电池电压被错误地测量，并且电池的剩余电量被正确计算。

公开(公告)号：US4779121A

公开(公告)日：1988-10-18

申请号：US924281

申请日：1986-10-29

申请人： Masafumi Okumura

发明人： Masafumi Okumura

IPC分类号： H04N1/04 ,  G03B27/72 ,  G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  H04N1/113 ,  H04N1/19 ,  G03B27/74

CPC分类号： G03G15/5025 ,  G03B27/72 ,  G03G15/043

摘要： A document scanning device such as a copier has defined within itself a point at which the brightness of an original document is detected and a separate point at which the document is scanned. The level of light exposure given to the document is controlled according to the detected brightness. The distance between the aforementioned two points is set with the delay time of an exposure control circuit taken into account. The delay time is set according to the fastest scanning speed of the device and is increased by means of a delay circuit if the scanning speed is deceased.

摘要翻译： 诸如复印机的文件扫描设备本身已经限定了检测到原始文档的亮度的点和文档被扫描的单独点。 根据检测到的亮度控制给予文档的曝光水平。 考虑到曝光控制电路的延迟时间来设定上述两点之间的距离。 延迟时间根据设备的最快扫描速度设定，并且如果扫描速度下降，则通过延迟电路增加延迟时间。