Mitsumi Electric Company Ltd.

Ntt Docomo, Inc.

Sony Ericsson Mobile Communications Japan, Inc.

Sony Mobile Communications Japan, Inc.

Takatoshi Itagaki

Akira Ikeuchi

Makio Abe

Takashi Takeda

Katsuya Suzuki

Kuniharu Suzuki

Yoshihide Majima

Yasuhiro Kinoshita

Kenichi Kasai

Hirotsugu Iijima

Ryota Kageyama

Atsushi Moriguchi

Tetsu Nishida

Noriyuki Wainai

Koichi Murano

Koji Yano

Takeshi Yamaguchi

Masato Aoki

Takeshi Natsuno

Junji Takeshita

Shu Hayashi

Hirotsugu Iljimai

Kuniharu c/o Sony Ericsson Mobile Comm Japan Inc Suzuki

An electronic apparatus includes a secondary battery, a deformation amount detector configured to detect a deformation amount of the secondary battery, a full charge detector configured to detect a full charge of the secondary battery, a stable state detector configured to detect a stable state after a full charge is detected by the full charge detector, and a state determination unit configured to determine a state of the secondary battery using the deformation amount detected by the deformation amount detector when the stable state is detected by the stable state detector.

Electronic apparatus and control method thereof

An electronic apparatus includes a secondary battery; a touch panel; a deformation amount detector configured to detect a deformation amount of the secondary battery; a touch determination unit configured to determine whether the touch panel is in a touch state; and a state determination unit configured to determine a state of the secondary battery using the deformation amount detected by the deformation amount detector when the touch panel is in the non-touch state based on a determination result of the touch determination unit.

A motor control circuit includes a control circuit configured to control a switching operation of an inverter circuit, the inverter circuit being configured to supply an alternating current power to a motor, and includes a determination-information generating circuit configured to generate at least one determination value that conveys information on whether the motor malfunctions or deteriorates. The motor control circuit includes a determination circuit configured to determine whether the motor malfunctions or deteriorates based on the determination value to output, as an interrupt signal, a signal indicating that the motor malfunctions or deteriorates to the control circuit.

Motor control circuit and motor controller

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.

Battery protection circuit, battery protection apparatus, and battery pack

A secondary battery protection circuit for protecting a secondary battery including: a power supply terminal; a protection operation circuit configured to monitor a state of the secondary battery through the power supply terminal to generate a signal for turning on/off conduction of a current path between the secondary battery and a load according to a protection state determined by the monitored state of the secondary battery; a nonvolatile memory in which data is written by a writing voltage being provided at the power supply terminal, an operation of the secondary battery protection circuit being controlled by the data; a voltage generation circuit configured to generate a provision voltage which is provided to a low withstand voltage circuit; and a control circuit configured to enable the nonvolatile memory to store the data therein in accordance with the protection state upon an input voltage being greater than a determination threshold voltage.

Secondary battery protection circuit, secondary battery protection device, battery pack and method of writing data

In a semiconductor integrated circuit device including a digital circuit region in which a digital circuit is formed, and an analog circuit region in which an analog circuit is formed, the analog circuit region is separated into an active element region in which an active element of the analog circuit is formed, and a resistive and capacitive element region in which a resistor or a capacitor of the analog circuit is formed, the resistive and capacitive element region is arranged in a region adjacent to the digital circuit region, and the active element region is arranged in a region separated from the digital circuit region.

Semiconductor integrated circuit device having analog circuit separated from digital circuit using resistive and capacitive element regions

A fuel gauge circuit detects a residual quantity of a batteryand is disposed on a substratetogether with a protection circuitwhich protects charging/discharging of the battery. The fuel gauge circuit includes a voltage monitor terminal Tdisposed on a side facing a positive power-supply terminalof the substrate and connected to each of the positive power-supply terminaland a voltage sensordisposed in the circuit, a voltage through terminal Tdisposed on a side facing the protection circuit, opposite to the side facing the positive power-supply terminal, and connected to a voltage monitor terminal Tof the protection circuit, and a wiringdisposed within the circuit to connect the voltage monitor terminal Tof the fuel gauge circuit to the voltage through terminal T

Fuel gauge circuit and battery pack

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.

Mobile phone terminal and communication 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.

Mobile phone terminal and charging system

A semiconductor integrated circuit device is disclosed that includes a signal processing unit having a nonvolatile memory and a detection unit; plural oscillation sources outputting plural oscillation signals; a selection control unit that selects one of the oscillation signals output by the oscillation sources according to a selection signal, and controls a transfer timing for transferring circuit setting information from the nonvolatile memory to the detection unit and an operations start timing for starting signal processing operations of the signal processing unit according to the selected oscillation signal.

Semiconductor integrated circuit device

A disclosed semiconductor integrated circuit device includes a digital circuit and an analog circuit formed on one semiconductor substrate; a guard band configured to prevent noise generated in the digital circuit from being transmitted to the analog circuit; a first power supply terminal configured to supply a power-supply voltage to the analog circuit; a first ground terminal configured to supply a ground potential to the analog circuit; a second power supply terminal configured to supply the power-supply voltage to the digital circuit; a second ground terminal configured to supply the ground potential to the digital circuit; and a filter circuit positioned between the second power supply terminal, the second ground terminal, and the digital circuit and configured to remove the noise transmitted from the digital circuit.

A user identification module (UIM)having a plurality of storage areas that may be built into or mounted in a mobile terminal. A contents server, upon receipt of a distribution request from the mobile terminal, may distribute a program or data used at the time of program execution through a network including a radio network. The program may be encrypted twice by the contents server. During distribution, the program may be decrypted a first time by a distribution management server. The program may be decrypted a second time by the UIM. The decrypted program and the data may be stored in one of a plurality of separate and independently operated memory blocks of the UIMand not through the control unit of the mobile terminal. The program may be enabled for execution by the UIMat the direction of the distribution management server

Method and apparatus for delivering program to storage module of mobile terminal

Since telephone terminals and are used as control terminals in a network information system by using DTMF signals (or packet signals), there is no need for a specially designed terminal or computer system, and any user (or researchee) who has the telephone terminal can respond to a server. In addition, by using a calling function, which is essentially provided to the telephone terminals, when the system is in use, audio communication can be easily established between users.

Growing community of inventors

Tokyo, Japan

Takatoshi Itagaki