Browse Prior Art Database

Indicate Method for Power Management States using Keyboard LED

IP.com Disclosure Number: IPCOM000114905D
Original Publication Date: 1995-Feb-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 45K

Publishing Venue

IBM

Related People

Hatori, M: AUTHOR [+2]

Abstract

Disclosed is a method/mechanism for indicating several power management status by utilizing keyboard LEDs. Any additional hardware aren't required for implementing this method. The following description shows the way of implementation.

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Indicate Method for Power Management States using Keyboard LED

      Disclosed is a method/mechanism for indicating several power
management status by utilizing keyboard LEDs.  Any additional
hardware aren't required for implementing this method.  The following
description shows the way of implementation.

      The power management function of Personal Computer is activated
when neither keyboard nor mouse activity are detected over the
predetermined period.  During the power management status, the
keyboard LED indicator makes no sense because the system is in idle.

Accordingly, the subject invention utilize the keyboard LED to
indicate the power management status while such period.

      Fig. 1 shows first power management status.  Blinking one LED
indicates lowest power saving state to the operator immediately.
Fig. 2 shows second power management status.  Blinking two LEDs
indicates higher power saving state to the operator immediately.
Fig. 3 shows second power management status.  Blinking three LEDs
indicates highest power saving state to the operator immediately.

      When the system resumes from the power management status, the
keyboard LED indicator will be back to the normal operation
immediately and let operation know the keyboard status.  By using
this method, the operator can get efficient and cost-free indicator
to know the power management works correctly even though the display
is blanked for power saving or the display heat up time...