Invention Application
- Patent Title: AUTOMATIC KEYPAD BACKLIGHT ADJUSTMENT ON A MOBILE HANDHELD ELECTRONIC DEVICE
- Patent Title (中): 自动键盘背光调整在移动手持电子设备上
-
Application No.: US12570244Application Date: 2009-09-30
-
Publication No.: US20110074690A1Publication Date: 2011-03-31
- Inventor: Matthew BROGA , Thomas James Crugnale
- Applicant: Matthew BROGA , Thomas James Crugnale
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Main IPC: G06F3/02
- IPC: G06F3/02
Abstract:
A method is set forth for automatically adjusting keypad brightness on a mobile electronic device having a light sensor, a keypad and a backlight for said keypad, comprising obtaining light level samples from the light sensor, turning the backlight from off to on in the event a current light level sample is less than a threshold value below which backlight illumination becomes necessary in order to read the keypad, and from off to on after a predetermined time period in the event the current light level sample is greater than the threshold value.
Public/Granted literature
- US08363015B2 Automatic keypad backlight adjustment on a mobile handheld electronic device Public/Granted day:2013-01-29
Information query
