Sony Ericsson Mobile Communications Ab

Sony Corporation

Sony Mobile Communications Inc.

Sony Mobile Communications Ab

Mats Wolf

Jan-Olof Svensson

William O Camp, Jr

Sarandis Kalogeropoulos

Mats Erixon

Stefan Hellstrom

Christian L'Estrade

Jr William O Camp

Kent Hansson

A battery cell is configured to operate in within an electronic device. Determining the status of the battery cell includes using a strain gauge attached to the battery cell. A value of the dimension of the battery cell is established by use of the strain gauge. The status of the battery cell is determined based on the established dimension value compared to a reference value and a threshold related to the dimension of the battery cell. Related methods, devices and/or computer program products are described.

Electronic device and methods therein

A system measures a voltage of a battery of a user device, measures a temperature and an acceleration of the battery if a decrease in battery voltage is measured, and determines whether the battery is functioning properly based on one or more of the measured voltage, temperature, or acceleration of the battery.

Battery short circuit monitoring

An electromagnetic vibrator for use in a portable communication device includes a housing including a track directed in a first dimension; a coiling including at least one coil turn, oriented in a second dimension essentially perpendicular to the first dimension, coiled around the track and being arranged to receive an electric voltage; a permanent magnet assembly arranged for motion along the track to which the permanent magnet assembly is tightly fitted; and a ferrofluid mixture placed between the track and the permanent magnet assembly allowing motion of the permanent magnet assembly in the first dimension in dependence of the electric voltage as supplied to the coiling.

Vibrator tube

A system measures a temperature condition of a component of a mobile communication device, determines a battery of the mobile communication device based on the measured temperature condition, activates the determined battery, activates a temperature management device connected to the battery, and manages the measured temperature condition of the component with the temperature management device.

Activating batteries based on environmental conditions

A mobile terminal having a plurality of communication operation modes is operated by determining a current communication operation mode of the plurality of communication operation modes of the mobile terminal, determining a current voltage of a battery that powers the mobile terminal, comparing the current voltage of the battery with a battery voltage threshold associated with the current communication operation mode, and changing the current communication operation mode to another one of the plurality of communication operation modes based on the comparison of the current voltage of the battery with the battery voltage threshold associated with the current communication operation mode.

Methods of operating a mobile terminal such that a communication operation mode is changed based on a current voltage of a battery that powers the mobile terminal and related mobile terminals and computer program products

A system for charging a rechargeable battery supplies a current to the battery to charge the battery. The system determines a temperature associated with the battery and identifies a cutoff parameter based on the determined temperature. The system determines when the supplied current matches a value corresponding to the cutoff parameter and stops further supply of the supplied current to the battery when the supplied current matches the value corresponding to the current cutoff parameter.

Growing community of inventors

Sodra Sandby, Sweden

Mats Wolf