Chapter 2 Features 13
Ambient light sensor (ALS)
If you have dynamic brightness selected and are running on battery power, the ambient
light sensor measures the surrounding light and adjusts the display brightness and contrast
accordingly. This ensures that you have proper settings for all lighting conditions. To enable
dynamic brightness, see “Adjusting the display brightness” on page 25.
Motion DataGuard
The LE1700 includes the DataGuard feature, which detects shocks, extreme vibrations, and
falls. If detected, DataGuard moves the drive heads away from the disk, which can prevent
hard drive failures and data loss. For more information, go to Control Panel and open
DataGuard.
Infrared (IrDA)
Your Tablet PC has integrated Infrared, which you can use to connect your tablet to other
computers and devices wirelessly. The LE1700 supports the IrDA standard (Infrared Data
Association), which ensures that you can connect to printers, modems, cellular phones, and
other devices. Infrared has a range of approximately one meter, and requires line-of-sight
alignment between the two devices.
USB 2.0 ports
Two USB 2.0 (High-speed USB) ports can be used to attach any USB device such as a mouse,
digital camera, printer, or external storage device. The USB ports are compatible with older
USB devices (USB 1.1).
For more information, see “Using USB” on page 24.
Headphones port
The headphones port is on the left edge of the Tablet PC. It is marked with a small
headphones symbol and is designed as an audio output channel only. You can attach
headphones or external speakers to this port.
For more information, see “Connecting headphones, external speakers, or a microphone”
on page 28.
