Patent application number | Description | Published |
20080197711 | Electronic device - An electronic device having at least a loop-shaped electric conductor generating electric power by electromagnetic induction is provided. The electronic device includes a voltage-detecting unit, a voltage-comparing unit and a separating unit. The voltage-detecting unit is configured to detect a voltage generated in the electric conductor by the electromagnetic induction. The voltage-comparing unit is configured to make a comparison between the voltage detected by the voltage-detecting unit and a predetermined reference voltage and determining whether the voltage detected by the voltage-detecting unit exceeds the predetermined reference voltage. The separating unit is configured to break an electric connection between the electronic conductor and an electronic circuit connecting to the electric conductor when the voltage-comparing unit determines that the voltage detected by the voltage-detecting unit exceeds the predetermined reference voltage. | 08-21-2008 |
20080197802 | Power transmission control device, power reception control device, non-contact power transmission system, power transmission device, power reception device, and electronic instrument - A power reception device transmits authentication information (e.g., start code, manufacturer ID, product ID, rated power information, and resonance characteristic information) to a power transmission device before starting normal power transmission by a non-contact power transmission system. The power transmission device performs instrument authentication based on the received authentication information, and regulates the maximum transmission power is regulated to conform to a power-reception-device side rated power. The power transmission device then performs normal power transmission. | 08-21-2008 |
20080197804 | Power transmission control device, power reception control device, non-contact power transmission system, power transmission device, power reception device, and electronic instrument - A power transmission device performs power-saving power transmission that transmits a small amount of power as compared with normal power transmission when the power transmission device has detected that a battery of a load has been fully charged so that the operation of a charge control device (charge control IC) of the load is maintained, thereby enabling recharging due to a charge management function of the charge control device. Since the load state of a power reception device increases when recharging has started, the power transmission device detects an increase in the load state and changes power transmission from power-saving power transmission to normal power transmission. When the power reception device has been removed during power-saving power transmission, the power transmission device detects that the power reception device has been removed, and stops continuous power transmission so that unnecessary power consumption does not occur. | 08-21-2008 |
20080200119 | Power reception control device, power transmission control device, non-contact power transmission system, power reception device, power transmission device, and electronic instrument - A power-receiving-side control circuit of a power reception device performs intermittent load modulation by causing an NMOS transistor to be turned ON/OFF during normal power transmission. A power-transmission-side control circuit included in a power transmission control device of a power transmission device monitors, an intermittent change in the load of the power reception device during normal power transmission. The power-transmission-side control circuit determines that a foreign object has been inserted between a primary coil and a secondary coil and stops power transmission when an intermittent change in load cannot be detected. The amount of power supplied to the load may be compulsorily reduced when the load state of the load is heavy. | 08-21-2008 |
20080200219 | Charger, electronic instrument, and charging system - A charger and an electronic instrument include a planar air-core coil, a magnetic sheet disposed on a side of the planar air-core coil that is opposite to a transmission side, and a housing disposed at a position that faces the transmission side of the planar air-core coil. The housing includes a positioning protrusion that is formed on an inner surface of the housing and positions the planar air-core coil, and a positioning protrusion or a positioning depression formed by an outer surface. | 08-21-2008 |
20080296979 | Contactless power transferring apparatus - A contactless power transferring apparatus includes a terminal loading portion, a primary coil, an up-down-direction pressing portion, a width direction pressing portion and a thickness direction pressing portion. The terminal loading portion has an opening through which a mobile terminal is inserted and loaded. The primary coil transfers power using electromagnetic induction to a secondary coil incorporated in the mobile terminal. When the mobile terminal is inserted inside the terminal loading portion, the pressing portions operate in an up-down direction, in a left-right direction and in a width direction, to press and support the mobile terminal respectively from below to position the coils in the up-down direction, from the width direction to position the coils in the left-right direction and from the thickness direction to dispose the coils a predetermined distance apart. | 12-04-2008 |
20080297107 | Contactless power transferring coil unit, mobile terminal, power transmitting apparatus, and contactless power transferring system - A contactless power transferring coil unit is provided. The contactless power transferring coil unit includes a flat coil, a magnetic film, and a leaking flux detecting coil. The flat coil is formed by winding a conductive wire into a spiral on a substantially flat plane. The magnetic film is disposed so as to cover one entire flat surface of the flat coil. The leaking flux detecting coil is disposed in a periphery outside an outer edge of the flat coil and the magnetic film and detects leaking magnetic flux from the flat coil. | 12-04-2008 |
20080297295 | Coil module apparatus - A coil module apparatus is provided. The coil module apparatus includes a flat coil, a circuit board, a magnetic sheet, connection terminals, and a case. The flat coil has a flat shape. The circuit board is used for the flat coil. The magnetic sheet is provided so as to cover one surface portion of the flat coil. The connection terminals are provided for connecting the flat coil and the circuit board. The case encloses the flat coil, the circuit board, and the magnetic sheet and encloses the connection terminals so that the connection terminals are partly exposed. | 12-04-2008 |
20090079387 | POWER TRANSMISSION CONTROL DEVICE, POWER TRANSMITTING DEVICE, POWER-TRANSMITTING-SIDE DEVICE, AND NON-CONTACT POWER TRANSMISSION SYSTEM - A power transmission control device provided in a non-contact power transmission system includes a power-transmitting-side control circuit that controls power transmission to a power receiving device, an actuator control circuit that controls the operation of an actuator that moves the position of a primary coil in an XY plane, a relative position detection signal generation circuit that generates a relative position detection signal relating to the primary coil and a secondary coil based on a coil end voltage or a coil current of the primary coil, and a primary coil position control circuit that causes the actuator control circuit to move the position of the primary coil in the XY plane so that the relative positional relationship between the primary coil and the secondary coil indicated by the relative position detection signal is within an allowable range. | 03-26-2009 |
20090124298 | MOBILE PHONE TERMINAL AND COMMUNICATION SYSTEM - Disclosed is a mobile phone terminal with a battery pack containing a retraceable battery as power supply, and transmitting and receiving radio-signals to and from a mobile phone system base transceiver station. The mobile phone terminal includes a data communication terminal communicating data with the battery pack, an intermittent receiving processor periodically carrying out intermittent receiving processing via the base transceiver station when the mobile phone terminal is in a standby operation, and a battery status determining unit transmitting, while the intermittent receiving processor is carrying out intermittent receiving processing, an activating signal to the battery pack via the data communication terminal and reading battery status data from the activated battery pack. | 05-14-2009 |
20090124299 | MOBILE PHONE TERMINAL AND CHARGING SYSTEM - Disclosed is a mobile terminal incorporating a battery pack utilized as power supply. The mobile terminal includes a positive terminal connected to a battery pack positive electrode, a negative terminal connected to a battery pack negative electrode, a data communication terminal communicating with a circuit in the battery pack, a charge control unit controlling charging of the battery pack via the positive terminal, and a reference voltage output unit outputting reference voltage. The terminal further includes a dividing resistor and a thermistor connected in series between the reference voltage output unit and the negative terminal, a temperature detector detecting temperature, and stopping charging of the battery pack based on the detected temperature, and a switching device controlling the voltage at the predetermined portion. The terminal still further includes a control unit communicating with the circuit in the battery pack via the data communication terminal, and changing the voltage at the predetermined portion when notified abnormality from the battery pack. | 05-14-2009 |
20090153103 | Portable Device and Battery Pack for the Same - A portable device is disclosed that includes a charge control circuit configured to control charging of a secondary battery included in a battery pack, the secondary battery being configured to supply power to the portable device; a temperature detection terminal at which the temperature of the secondary battery is detected from a temperature detection part of the battery pack; positive and negative power terminals to be connected to the battery pack; a control circuit configured to control the operation of the portable device; and an interface circuit connected between the temperature detection terminal and each of an input terminal of the charge control circuit and an input terminal of the control circuit, in which a signal detected at the temperature detection terminal is fed to each of the charge control circuit and the control circuit through the interface circuit. | 06-18-2009 |
20090158053 | Battery Pack and Electronic Apparatus - A battery pack includes at least one rechargeable battery configured to output power; a remaining battery capacity detection unit configured to detect a remaining battery capacity of the at least one rechargeable battery; and a cryptographic unit configured to output a response word in response to an external request word by encrypting the external request word based on a cryptographic algorithm with a common code key. | 06-18-2009 |
20100117590 | PORTABLE DEVICE - A portable device includes a case configuring the body of the portable device and a fuel cell system included in the case and having air inlets formed in the surface of the case, and also has a solar cell disposed on a portion on the surface of the case, in which the air inlets are provided. The solar cell has holes corresponding to the air inlets. | 05-13-2010 |
20110268995 | FUEL CELL STORING STRUCTURE AND ELECTRONIC APPARATUS - Heat generated from a fuel cell is released effectively. A fuel cell unit | 11-03-2011 |
20110319137 | PORTABLE DEVICE - A portable device including a casing, a photoelectric conversion section that converts light into electric power, a protective plate having light-transmitting property and protecting a light-receiving surface of the photoelectric conversion section, and a amount-of-received-light display section provided in a perimeter region of the protective plate, the amount-of-received-light display section made of a first paint that changes display color based on an amount of received light. | 12-29-2011 |
20120009869 | POWER SUPPLY DEVICE, COMMUNICATION TERMINAL DEVICE, AND NON-CONTACT POWER TRANSMISSION METHOD - A power supply apparatus including a near-field wireless communication unit that wirelessly communicates with a plurality of communication terminals, a power transmission unit that sets a plurality of resonance frequencies to transfer power in a non-contact manner to each of the plurality of communication terminals, and a control unit that determines a priority level of each of the communication terminals based on identification information received from the communication terminals and determines an amount of power transmitted at each of the resonance frequencies based on the determined priority levels. | 01-12-2012 |
20120030480 | BATTERY PACK AND ELECTRONIC APPARATUS - A battery pack includes at least one rechargeable battery configured to output power; a remaining battery capacity detection unit configured to detect a remaining battery capacity of the at least one rechargeable battery; and a cryptographic unit configured to output a response word in response to an external request word by encrypting the external request word based on a cryptographic algorithm with a common code key. | 02-02-2012 |
20120056497 | COMMUNICATION TERMINAL APPARATUS AND METHOD FOR SUPPLYING TERMINAL POWER SOURCE - A communication terminal that includes a wireless communication unit used to communicate with another communication terminal, a power transmitting unit that transmits contactless electric power to the another communication terminal, and a control unit that controls the wireless communication unit to transmit, to the another communication terminal, an instruction for receiving the contactless electric power transmitted from the power transmitting unit. | 03-08-2012 |
20120293117 | POWER CHARGING DEVICE AND MOBILE TERMINAL APPARATUS - A charging device that includes a first battery charged at a first rate and a second battery that is charged at a second rate, which is faster than the first rate. The charging device includes an interface that receives electric power from a charger; a first switch disposed between the interface and the first battery; a second switch disposed between the second battery and the first battery; a battery voltage detection circuit that detects a voltage of the second battery; a charger detection circuit connected to the interface that detects whether power is being received from the charger; and a switch control circuit that controls the first switch and the second switch based on outputs of the charger detection circuit and the battery voltage detection circuit. | 11-22-2012 |
20130154554 | MOBILE DEVICE AND CHARGING APPARATUS - When the charge level of a fully-charged rechargeable battery decreases due to quiescent power drain, in order to recharge it is necessary for the user to pick up and again place the mobile device in which the rechargeable battery is inserted onto a charging apparatus and issue instructions to start recharging. To address this issue, a charging controller applies control to disconnect a capacitor from a receiver coil with a switch in the case where the charge level of a rechargeable battery is equal to or greater than a given threshold value, and additionally applies control to connect the capacitor to the receiver coil with the switch in the case where the charge level of the rechargeable battery is less than the threshold value. | 06-20-2013 |
20130169215 | CHARGING DEVICE - A charging device including a first connector connected to a power source; a second connector connected an electronic device; a magnetic element connected to a magnet of the electronic device; a magnetic sensor that detects a magnetic force generated by the magnet of the electronic device; and a switch circuit disposed between the first connector and the second connector and that switches between an open state and a closed state based on an output of the magnetic sensor. | 07-04-2013 |
20130169221 | CHARGING APPARATUS - A charging apparatus including a mounting portion on which a plurality of information processing apparatuses are mounted, a power transmission unit that transmits power in a non-contact manner to each of the plurality of information processing apparatuses placed on the mounting portion, and a control unit that receives a charge order instruction from at least one of the plurality of information processing apparatuses, and controls the power transmission unit to transmit power to each of the plurality of information processing apparatuses in an order determined based on the received charge order instruction. | 07-04-2013 |
20130227312 | MOBILE TERMINAL - An information processing apparatus including an internal battery device including a secondary battery; a load device configured to receive power from the secondary battery; a switch section disposed externally to the battery device and configured to generate a control signal for preventing dark current from flowing from the secondary battery to the load device; and a first switching element configured to cut off a power source path from the secondary battery to the load device based on the control signal generated by the switch section. | 08-29-2013 |
20140333253 | MOBILE DEVICE AND COMBO COIL MODULE - An apparatus may include a near field communication (NFC) antenna coil and a wireless power receiving coil. The NFC antenna coil and the receiving coil may be arranged on a magnetic sheet. The wireless power receiving coil may be concentrically disposed on the magnetic sheet within an inner periphery of the NFC antenna coil. An inner diameter of the wireless power receiving coil may be greater than or equal to an inner diameter of reference listener antenna coil RL-6, of the reference listener coils specified by the NFC forum. | 11-13-2014 |
20140354072 | COMMUNICATION TERMINAL APPARATUS AND METHOD FOR SUPPLYING TERMINAL POWER SOURCE - A communication terminal that includes a wireless communication unit used to communicate with another communication terminal, a power transmitting unit that transmits contactless electric power to the another communication terminal, and a control unit that controls the wireless communication unit to transmit, to the another communication terminal, an instruction for receiving the contactless electric power transmitted from the power transmitting unit. | 12-04-2014 |
20140368055 | POWER SUPPLY DEVICE, COMMUNICATION TERMINAL DEVICE, AND NON-CONTACT POWER TRANSMISSION METHOD - A power supply apparatus including a near-field wireless communication unit that wirelessly communicates with a plurality of communication terminals, a power transmission unit that sets a plurality of resonance frequencies to transfer power in a non-contact manner to each of the plurality of communication terminals, and a control unit that determines a priority level of each of the communication terminals based on identification information received from the communication terminals and determines an amount of power transmitted at each of the resonance frequencies based on the determined priority levels. | 12-18-2014 |