Browse Prior Art Database

AC Adapter Airplane Mode

IP.com Disclosure Number: IPCOM000222616D
Original Publication Date: 2012-Oct-19
Included in the Prior Art Database: 2012-Oct-19
Document File: 1 page(s) / 28K

Publishing Venue

Lenovo

Related People

YASUMICHI TSUKAMOTO: INVENTOR

Abstract

PC is used everywhere even in airplanes or trains. This technology provides power limit control at AC adapter side under such limited power environment where there are available power limit fused at certain threshold. AC adapter has an airplane mode switch which change adapter ID to make a host system work under required power threshold. The AC adapter has LED for the mode indication, and some mode change delay to allow users to plug to wall power.

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AC Adapter Airplane Mode

PC is used everywhere even in airplanes or trains. This technology provides power limit control at AC adapter side under such limited power environment where there are available power limit fused at certain threshold. AC adapter has an airplane mode switch which change adapter ID to make a host system work under required power threshold. The AC adapter has LED for the mode indication, and some mode change delay to allow users to plug to wall power.

PC is used everywhere even in airplanes or trains. For such limited power environment, there are available power limit fused at certain threshold. If users use PC or related electrical devices exceeding the power threshold, a fuse gets blown, ending up damaging airplanes or trains.

  AC adapter has the following features:

-       Airplane mode switch

Ø  Airplane mode is ON when switch is ON

-       Airplane mode LED

Ø  LED is ON when Airplane mode

-       Dedicated AC adapter ID for Airplane mode

Ø  AC adapter ID is different  for

Normal

mode and Airplane mode

Ø  AC adapter ID is Airplane mode for certain period of time even for

Normal

mode

PC or any electronics devices works as follows:

-       Airplane mode OFF (@ AC adapter ID is “

Normal

”)

Ø  Normal behavior following AC adapter power rating

-       Airplane mode ON (@AC adapter ID is “Airplane”)

Ø  System power is limited under certain power  with max power management (ex. 65W)

Ø 

Battery

charging or CPU frequency are controlled to meet threshold

Ø  Wireless might be tur...