Patent application number | Description | Published |
20080266126 | Battery Residual Quantity Display Method and Electronic Equipment - The present invention is directed to a battery residual quantity display method for performing display of battery residual quantity of a battery pack mounted at an electronic equipment and serving to supply power to the electronic equipment. When power is turned ON, a first microcomputer ( | 10-30-2008 |
20090171598 | Battery Pack, Electronic Appliance, And Method of Detecting Remaining Amount of Battery - A battery pack has a charge and discharge count measuring part ( | 07-02-2009 |
20090220825 | Battery Pack and Battery Protection Method - A battery protection operation having higher safety is performed in a battery pack. Presence/absence of plural abnormal states including at least an overcharge state and an overdischarge state based on detected results of voltage between a positive terminal and a negative terminal of a battery cell as well as an overcurrent charge state and an overcurrent discharge state indicating that charge current and discharge current are excessive respectively based on detected results of charge and discharge current of the battery cell are determined at any time and an abnormality determination flag showing a determination result of respective abnormal states as a flag is stored. In addition, control states A to D according to combinations of respective operation states of the a discharge current shut-off circuit selectively shutting off discharge current of the battery cell and a charge current shut-off circuit selectively shutting off charge current of the battery cell are defined, and to which control state the state should be changed will be determined based on a value of the abnormality determination flag. | 09-03-2009 |
20090280396 | BATTERY RESIDUAL QUANTITY DISPLAY METHOD AND ELECTRONIC EQUIPMENT - A battery pack detachably connectable to an equipment body to supply power to the equipment body, the battery pack including a battery cell, a microcomputer for communicating with the equipment body, a connection terminal connected to the microcomputer, a positive power supply input terminal connected to a cathode of the battery cell; and a negative power supply input terminal connected to an anode of the battery cell. After the power of the equipment body is turned on, the microcomputer alternately sends to the equipment body by serial communication via the connection terminal information to be used in authentication processing executed by the equipment body and information to be used in a battery residual quantity count executed by the equipment body. After the authentication processing is complete, the microcomputer sends to the equipment body information to be used in updating the battery residual quantity count executed by the equipment body. | 11-12-2009 |
20110102136 | INFORMATION PROCESSING APPARATUS, POWER-SUPPLY CONTROL METHOD, PROGRAM, AND POWER-SUPPLY CONTROL SYSTEM - An information processing apparatus includes: a first connection section to which a first power-supply device is connected; a second connection section to which a second power-supply device is connected; a setting determiner that determines whether or not identification information is to be set for each power-supply device on the basis of connection states and setting control information; an authenticator that selectively obtains, when the setting determiner determines that identification information is not to be set, identification information from the power-supply devices connected to each connection section and that authenticates the obtained identification information; an identification-information setter that causes, when the setting determiner determines that identification information is to be set, unique identification information to be set for each power-supply device; and a processor that selectively performs executable power-supply-related processing on the basis of a result of the authentication or the identification-information setting and of processing control information. | 05-05-2011 |
20110107120 | INFORMATION PROCESSING APPARATUS, POWER SUPPLY CONTROL METHOD, PROGRAM AND POWER SUPPLY CONTROL SYSTEM - There is provided an information processing apparatus including a first connection unit with power supply type information, a second connection unit with power supply type information, a connection state determination unit for determining whether the connection states of the first and second connection units have changed, a power supply identification information acquisition unit for selectively acquiring the power supply type information from the first power supply apparatus and from the second power supply apparatus if the connection state determination unit determines that the connection states have changed, a power supply identification information management unit for managing connected-power-supply identification information, and a power supply control unit for controlling a feed from the power supply apparatuses connected to the first and second connection units and a charge on the first power supply apparatus connected to the first connection unit. | 05-05-2011 |
20120150465 | ELECTRONIC DEVICE, BATTERY PACK, AND METHOD OF COMPUTING BATTERY PACK CAPACITY - An electronic device includes a battery capacity computing unit configured to compute the current full-charge capacity of a currently inserted battery apparatus having secondary cells. The battery capacity computing unit acquires at least information on the full-charge capacity of the battery apparatus in a brand-new state and information on the battery charge/discharge cycle count from the battery apparatus, retains a correction coefficient used when computing the current full-charge capacity of the battery apparatus, and calculates the current full-charge capacity of the battery apparatus using the information on the full-charge capacity of the battery apparatus in a brand-new state, the information on the battery charge/discharge cycle count, and the correction coefficient. | 06-14-2012 |
20120155849 | IMAGING APPARATUS AND METHOD OF CALCULATING USABLE TIME OF IMAGING APPARATUS - An imaging apparatus includes a usable time calculation unit which calculates a usable time of a battery device having a secondary battery, wherein the usable time calculation unit measures an average power level while a component is performed at a predetermined operation mode, wherein the power consumption of the component is unknown in advance before the component is initially connected, and when power is supplied for the second and subsequent times while the component is continuously connected, the usable time calculation unit calculates the usable time of the battery device using the average power level and a current integration value which is an integration value of current flowing during charging and discharging of the battery device. | 06-21-2012 |
20130113417 | CHARGE CONTROL DEVICE AND CHARGE CONTROL METHOD - A charge control device includes a current acquisition unit that acquires a charge current value of each battery, and a main charge unit that performs main charge for each battery based on the charge current value acquired by the current acquisition unit. | 05-09-2013 |
20130318369 | INFORMATION PROCESSING APPARATUS, POWER SUPPLY CONTROL METHOD, PROGRAM AND POWER SUPPLY CONTROL SYSTEM - There is provided an information processing apparatus including a first connection unit with power supply type information, a second connection unit with power supply type information, a connection state determination unit for determining whether the connection states of the first and second connection units have changed, a power supply identification information acquisition unit for selectively acquiring the power supply type information from the first power supply apparatus and from the second power supply apparatus if the connection state determination unit determines that the connection states have changed, a power supply identification information management unit for managing connected-power-supply identification information, and a power supply control unit for controlling a feed from the power supply apparatuses connected to the first and second connection units and a charge on the first power supply apparatus connected to the first connection unit. | 11-28-2013 |
20140050467 | IMAGING APPARATUS AND METHOD OF CALCULATING USABLE TIME OF IMAGING APPARATUS - An imaging apparatus includes a usable time calculation unit which calculates a usable time of a battery device having a secondary battery, wherein the usable time calculation unit measures an average power level while a component is performed at a predetermined operation mode, wherein the power consumption of the component is unknown in advance before the component is initially connected, and when power is supplied for the second and subsequent times while the component is continuously connected, the usable time calculation unit calculates the usable time of the battery device using the average power level and a current integration value which is an integration value of current flowing during charging and discharging of the battery device. | 02-20-2014 |