Motorola Corporation

Blackberry Corporation

Motorola Mobility LLC

Marco Pulido

Joseph Patino

John M Burgan

Jose E Korneluk

Russell L Simpson

Glenn R Nelson

Systems and methods to detect particular levels of remaining battery capacities. A ratio of changes in battery output voltage over changes in battery capacity (&#x394;V/&#x394;C) is calculated. Detected rises in the value of this ratio are used to detect that a battery has a remaining capacity level that is near depletion. In a certain temperature range, the &#x394;V/&#x394;C ratio is used to provide an indication that the battery is approaching a low remaining capacity state. In another temperature range, an increase in the &#x394;V/&#x394;C ratio indicates that the battery has reached a mid-range remaining capacity level.

Power pack remaining capacity level detection

A method () for improving quality of output audio (). The method can include detecting an output acoustic signal () and generating a receive audio signal () based, at least in part, on the detected output acoustic signal. A frequency domain representation () of the receive audio signal can be compared to a frequency domain representation () of a source audio signal () from which the output acoustic signal is generated. At least one distortion signal () in the receive audio signal can be identified, and the source audio signal can be selectively equalized to reduce an amplitude of the source audio signal at a frequency that correlates to the distortion signal.

Dynamic distortion elimination for output audio

The invention concerns a method () and system () for charging a battery (). The method includes the steps of receiving () an input power supply signal (), monitoring () the input power supply signal to determine when the input power supply signal reaches first and second predetermined thresholds () and in response to the monitoring step, selectively controlling () a charging switch () that controls the flow of the input power supply signal to the battery. The controlling step can include activating () the charging switch when the input power supply signal reaches the first predetermined threshold and deactivating () the switch when the input power supply signal reaches the second predetermined threshold.

Charging system and method

A mobile communication device () includes a volatile memory () and a non-volatile memory (). Instruction code for operating the mobile communication device is permanently stored in the non-volatile memory, and copied to the volatile memory for execution. The mobile communication device enters a hibernate mode which involves shutting down most of the mobile communication device except power to the volatile memory, which allows a nearly instant apparent start up of the mobile communication device at a later time.

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Miramar, FL, United States of America

Marco Pulido