Abstract: A wireless charging system and a method for tuning the wireless charging system is described. The system can include matching circuitry coupled to a transmission coil and a controller coupled to the matching circuitry. The transmission coil can have a load inductance. The controller can control the matching circuitry to adjust a voltage associated with the capacitance value based on the load inductance to cause the voltage associated with the capacitance value and a current associated with the capacitance value to be in phase.

Abstract: A wireless charging system and a method for tuning the wireless charging system is described. The system can include matching circuitry coupled to a transmission coil and a controller coupled to the matching circuitry. The transmission coil can have a load inductance. The controller can control the matching circuitry to adjust a voltage associated with the capacitance value based on the load inductance to cause the voltage associated with the capacitance value and a current associated with the capacitance value to be in phase.

Abstract: Methods and apparatus relating to provision and/or utilization of a mechanically embedded heating element are described. An embodiment includes a heating element which is thermally coupled to an adhesive. The adhesive bonds a first item and a second item. The heating element is capable of being heated in response to application of power and the heated heating element causes the release of a bond by the adhesive to allow for physical separation of the first item and the second item. Other embodiments are also disclosed and claimed.

Abstract: An apparatus for power transmission with a wireless transceiver is described herein. The apparatus can include a power supply to generate a voltage and a current to flow through a power multiplexer and to a tuning antenna resonator. In this disclosure, the power multiplexer can switch between a receive mode and a transmit mode based on a signal from the processor. The tuning antenna resonator can transmit and receive power based on the power multiplexer.

Abstract: Methods and apparatus relating to provision and/or utilization of a mechanically embedded heating element are described. An embodiment includes a heating element which is thermally coupled to an adhesive. The adhesive bonds a first item and a second item. The heating element is capable of being heated in response to application of power and the heated heating element causes the release of a bond by the adhesive to allow for physical separation of the first item and the second item. Other embodiments are also disclosed and claimed.

Abstract: A method may be provided that includes sensing a temperature, determining a current of a flash device based on the sensed temperature, and operating the flash device based on the determined current to provide light.

Abstract: A method may be provided that includes sensing a temperature, determining a current of a flash device based on the sensed temperature, and operating the flash device based on the determined current to provide light.

Abstract: An apparatus includes a connector, for providing a physical connection to a USB device, a detection circuit, operable to detect attachment of a USB device; and a charging circuit, for charging a battery of a portable device using current drawn from a USB device, the charging circuit being operable, if it is detected that a USB device is attached, to generate a start-up request signal. The apparatus has a charging mode in which power is provided by the charging circuit to the battery, and a USB connection mode for providing a USB connection. The apparatus also includes a control unit, operable in response to the start-up request signal to determine whether power supplied by the battery meets a predetermined criterion.

Abstract: A method, system, module, apparatus, use, and computer program product are shown for determining a supply voltage level for operating an integrated circuit. To allow exact voltage level calibration, a high load condition is provided to the integrated circuit, a first voltage level of the integrated circuit is adjusted to provide a stable operation of the integrated circuit in the high load condition, a temperature of the integrated circuit in the high load condition is measured, the measured temperature in the high load condition is stored along with the adjusted first voltage level in the high load condition.

Abstract: An apparatus includes a connector, for providing a physical connection to a USB device, a detection circuit, operable to detect attachment of a USB device; and a charging circuit, for charging a battery of a portable device using current drawn from a USB device, the charging circuit being operable, if it is detected that a USB device is attached, to generate a start-up request signal. The apparatus has a charging mode in which power is provided by the charging circuit to the battery, and a USB connection mode for providing a USB connection. The apparatus also includes a control unit, operable in response to the start-up request signal to determine whether power supplied by the battery meets a predetermined criterion.

Abstract: The invention relates to an electronic device comprising at least two power management circuits and a signal line connecting the circuits. Each of the circuits is adapted to control a power supply to at least one functional component of the electronic device. Each of the circuits is adapted to detect a condition which requires powering down functional components of said electronic device and to set the signal line to a predetermined state, in case the circuit detects a condition which requires a powering down of the electronic device. Further, each of the circuits is adapted to monitor a state of the signal line and to power down all functional components associated to it upon detection of the predetermined state of the signal line.

Abstract: Each of at least two power management (PM) circuits interconnected by a signal line is adapted to control a power supply to at least one functional component associated to the power management circuit. Each PM circuit is adapted to detect a condition which allows or requires a change of a powering state of the at least one associated functional component and to contribute to a change of a state of the signal line, in case the PM circuit detects a condition which allows or requires, respectively, a change of a powering state of the at least one associated functional component. Each PM circuit is adapted to monitor a state of the signal line. Each PM circuit is adapted to change a powering state of all associated functional components upon detection of a change of state of the signal line.

Abstract: A method, system, module, apparatus, use, and computer program product are shown for determining a supply voltage level for operating an integrated circuit. To allow exact voltage level calibration, a high load condition is provided to the integrated circuit, a first voltage level of the integrated circuit is adjusted to provide a stable operation of the integrated circuit in the high load condition, a temperature of the integrated circuit in the high load condition is measured, the measured temperature in the high load condition is stored along with the adjusted first voltage level in the high load condition.

Abstract: Each of at least two power management (PM) circuits interconnected by a signal line is adapted to control a power supply to at least one functional component associated to the power management circuit. Each PM circuit is adapted to detect a condition which allows or requires a change of a powering state of the at least one associated functional component and to contribute to a change of a state of the signal line, in case the PM circuit detects a condition which allows or requires, respectively, a change of a powering state of the at least one associated functional component. Each PM circuit is adapted to monitor a state of the signal line. Each PM circuit is adapted to change a powering state of all associated functional components upon detection of a change of state of the signal line.

Abstract: The invention relates to an electronic device comprising at least two power management circuits and a signal line connecting the circuits. Each of the circuits is adapted to control a power supply to at least one functional component of the electronic device. Each of the circuits is adapted to detect a condition which requires powering down functional components of said electronic device and to set the signal line to a predetermined state, in case the circuit detects a condition which requires a powering down of the electronic device. Further, each of the circuits is adapted to monitor a state of the signal line and to power down all functional components associated to it upon detection of the predetermined state of the signal line.

Abstract: A digital system, a method implemented by the system and a mobile device, in which the system can be applied, the system including a system oscillator for providing a system main clock signal, a control block for controlling at least the power management of the digital system and one or more functional blocks, whereof at least one is arranged to detect a need for a system clock. At least one functional block is arranged to send at least one system clock request signal to the control block, which in turn is arranged to enable the system oscillator to provide the system clock signal in response to receiving the system clock request signal. When the system clock signal appears, the at least one functional block is arranged to detect the system clock signal.

Abstract: A device (MS) having an electrical display (DSPL) is equipped with a transparent electrostatic diaphragm (ACT) vibrateably attached in front of the display. The display has been made electrically conductive and used as a stator of thus formed electrostatic speaker (TD1). A fluctuating DC-voltage is conducted to the diaphragm and display in order to resonate the diaphragm and produce sound respective to the fluctuation. The transparency of the diaphragm allows a user to see the display through the diaphragm. Alternatively, the similar arrangement can be used to implement a transparent electrostatic microphone on the display.

Abstract: The invention regards a method and device for the current feed of a mobile communications device in a device comprising at least one dissipation-type voltage regulator (201), such as a linear regulator, in which the first voltage value of the regulator's input voltage (Vs, 211) is decreased with voltage-decreasing means (202-207, 212) to the second voltage value of the input voltage (Vs) compared to the used voltage (Vbat, 208), which is smaller than the first input voltage, to form the voltage regulator's (201) output voltage (Vout, 209).

Abstract: The invention regards a method and device for the current feed of a mobile communications device in a device comprising at least one dissipation-type voltage regulator (201), such as a linear regulator, in which the first voltage value of the regulator's input voltage (Vs, 211) is decreased with voltage-decreasing means (202-207, 212) to the second voltage value of the input voltage (Vs) compared to the used voltage (Vbat, 208), which is smaller than the first input voltage, to form the voltage regulator's (201) output voltage (Vout, 209).

Abstract: A device (MS) having an electrical display (DSPL) is equipped with a transparent electrostatic diaphragm (ACT) vibrateably attached in front of the display. The display has been made electrically conductive and used as a stator of thus formed electrostatic speaker (TD1). A fluctuating DC-voltage is conducted to the diaphragm and display in order to resonate the diaphragm and produce sound respective to the fluctuation. The transparency of the diaphragm allows a user to see the display through the diaphragm. Alternatively, the similar arrangement can be used to implement a transparent electrostatic microphone on the display.