Method of controlling display brightness of portable...

Details Method of controlling display brightness of portable... Method of controlling display brightness of portable...

2005-11-22

2005-11-22

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S601000, C345S077000, C345S211000

Reexamination Certificate

active

06967647

ABSTRACT:
A battery voltage detector detects a voltage of a battery, a battery alarm voltage detector detects whether the voltage of the battery has dropped to a battery alarm voltage, a near-battery alarm voltage detector detects whether the voltage of the battery has dropped to a near-battery alarm voltage, and a display brightness control unit decreases the brightness of a display unit if the near-battery alarm voltage detector detects that the voltage of the battery has dropped to a near-battery alarm voltage.

REFERENCES:
patent: 5854617 (1998-12-01), Lee et al.
patent: 6574740 (2003-06-01), Odaohhara et al.
patent: 2003/0001813 (2003-01-01), Sekiguchi
patent: 2003/0149526 (2003-08-01), Zhou et al.
patent: 2003/0234778 (2003-12-01), Kim
patent: 11-153826 (1999-06-01), None
“New Fujitsu iPAD brings retailing to the palm of your hand”; Fujitsu Transaction Solutions, Inc.; Press Release dated Jan. 13, 2002 (2 pages).

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