Automatic keypad backlight adjustment on a mobile handheld electronic device
    4.
    发明授权
    Automatic keypad backlight adjustment on a mobile handheld electronic device 有权
    移动手持电子设备上的自动键盘背光调节

    公开(公告)号:US08363015B2

    公开(公告)日:2013-01-29

    申请号:US12570244

    申请日:2009-09-30

    IPC分类号: G09G5/00

    CPC分类号: H05B37/02 G06F3/0202

    摘要: 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.

    摘要翻译: 提出了一种用于在具有用于所述键盘的光传感器,键盘和背光源的移动电子设备上自动调整键盘亮度的方法,包括从所述光传感器获得光级样本,在背光源中将所述背光从关闭切换到开 当前的光级采样小于阈值,低于该阈值,为了读取键盘而需要背光照明,并且在当前光级样本大于阈值的情况下,在预定时间段之后从OFF到ON。

    AUTOMATIC KEYPAD BACKLIGHT ADJUSTMENT ON A MOBILE HANDHELD ELECTRONIC DEVICE
    5.
    发明申请
    AUTOMATIC KEYPAD BACKLIGHT ADJUSTMENT ON A MOBILE HANDHELD ELECTRONIC DEVICE 有权
    自动键盘背光调整在移动手持电子设备上

    公开(公告)号:US20110074690A1

    公开(公告)日:2011-03-31

    申请号:US12570244

    申请日:2009-09-30

    IPC分类号: G06F3/02

    CPC分类号: H05B37/02 G06F3/0202

    摘要: 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.

    摘要翻译: 提出了一种用于在具有用于所述键盘的光传感器,键盘和背光源的移动电子设备上自动调整键盘亮度的方法,包括从所述光传感器获得光级样本,在背光源中将所述背光从关闭切换到开 当前的光级采样小于阈值,低于该阈值,为了读取键盘而需要背光照明,并且在当前光级样本大于阈值的情况下,在预定时间段之后从OFF到ON。