Microsoft Technology Licensing, LLC

Palm, Incorporated

Van Winston Oler

Summer L Schneider

Ralf Groene

Hua Wang

Timothy Carlyle Shaw

David R Perek

Kabir Siddiqui

Karsten Aagaard

Paul Henry Dietz

Thomas Charles Oliver

Eric Joseph Wahl

Panos Costa Panay

Christopher Harry Stoumbos

James Alec Ishihara

Todd David Pleake

Nathan C Sherman

Sharon Drasnin

Matthew David Mickelson

David Michael Lane

Joel Lawrence Pelley

Rob Huala

Christopher Andrew Whitman

David Carter Vandervoort

Gene Robert Obie

Robert D Young

James Charles Marshall

Moshe Randall Lutz

Jim Tom Belesiu

Darryl I Jensen

Harold F Mantooth

Camilo Leon

Hiroo Umeno

James H Wise

Dennis J Mathias

Michael A Schwager

Andrew N Cady

Chun Beng Goh

Mark J Seilstad

Stephan Alexander Cummings

Hakon Strande

David Mai

Matthew G Pedersen

Jose R Sousa

Ken Kelly

David Neff

Richard Peter Spooner

Darryl L Jensen

Iii Edward C Giaimo

Davie M Lane

Darryl Jensen

Jamesh Wise

Rajesh Manohar Dighde

Shane Aaron Sykes

Scott K Gibson

Scott Mitchel Mail

Jay Scott Kassels

Matthew G Pederson

Iii David Otto Whitt

Anthony Christian Reed

Bernard Maurice Schultz

David Otto Iii Whitt

Edward C Giaimo Iii

Robyn Rebecca Reed Mclaughlin

Edward C Iii Giaimo

Multi-stage power adapter techniques are described in which a power adapter for a device is configured to selectively switch between a relatively low power supply and a relatively high power supply. The low power supply may be employed upon initial connection of the adapter to a host device to ensure that the adapter is safe when disconnected and does not supply full power before the device is ready to receive the high power supply. The low power supply may supply enough power for the host device to detect the connection of the adapter and establish initial communication with the adapter. A switch to the high power supply by the adapter may then occur in response to a notification from the host device that indicates the host device is ready for the high power supply. The switch to high power supply enables normal operation of the host device.

Multi-stage power adapter configured to provide a first power level upon initial connection of the power adapter to the host device and a second power level thereafter upon notification from the host device to the power adapter

Multi-stage power adapter configured to provide low power upon initial connection of the power adapter to the host device and high power thereafter upon notification from the host device to the power adapter

A circuit and method for automatically compensating display contrast for temperature changes allowing user preference setting. The invention can be applied to any device having a display, but in one embodiment, portable electronic devices such as palmtops, other portable computers, personal digital assistants, cellular telephones, portable web browsers, remote controls, pagers, etc. are described herein. The invention allows a user to set a desired contrast preference and provides display feedback to the user as the preference setting is being made. Once the preference is set, the invention automatically compensates the contrast adjustment based on variable temperature conditions to maintain the display according to the user preference. For instance, as the temperature falls, the invention automatically detects this and adjusts the contrast in a first direction to maintain the user preference. Alternatively, as the temperature rises, the invention automatically adjusts contrast in a second direction to maintain the user preference.

Circuit and method for temperature compensated contrast

A system for controlling battery charging. The system comprises a battery charging device, a temperature sensor, and a controller. The battery may be a Lithium polymer battery, or the like. The temperature sensor senses the battery temperature and outputs a temperature data signal. The controller inputs the temperature data signal and determines if the temperature data is outside of a range with an upper limit and lower limit. If so, the controller disables the battery charging circuit, wherein the battery is prevented from being charged. In this fashion, the battery's lifetime (e.g., number of charge/discharge cycles) is extended. In another embodiment, the system further comprises a display. The controller outputs a signal to the display, directing it to display a message indicating that the battery is not being charged because the temperature is out of the pre-determined range.

Method and system for extending battery life by monitoring temperature during charging

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Redmond, WA, United States of America

Van Winston Oler