System Functions - Sony Ericsson D750i White Paper

these folders will show a list of files related to that
folder, e.g. images in the Pictures folder. Using the
computer application the user can now: retrieve
files from phone to computer, delete files from the
phone and transfer files from the computer to the
phone using the normal drag and drop mecha-
nisms provided by the computer.
Media viewing
The phone can send images and sounds to a
media viewer device, for example the Bluetooth
media viewer MMV-100 or the Bluetooth Media
Center MMV-200. This allows the user to conven-
iently run a slide show on the TV showing a set of
phone camera pictures for family and friends. After
selecting an image in the Pictures folder under the
File manager icon, the user can select the Remote
screen option under More. The phone will then
connect to a Bluetooth device that can receive
images and when the user then selects View, the
image is transferred to the remote screen and dis-
played. When the user then selects another image,
that image is transferred to the remote screen and
displayed.
Profiles
The following Bluetooth profiles are supported in
the phone:
• Dial-up Networking Profile
• Generic Access Profile
• Generic Object Exchange Profile
• Object Push Profile
• Serial Port Profile
• Handsfree Profile
• Headset Profile
• Synchronization Profile
• Basic Imaging Profile
• File Transfer Profile
• Human Interface Device (HID) Profile
• SyncML OBEX binding
• JSR-82 Java API
Remote control
By using the Bluetooth HID (Human Interface
Device) Profile v1.0, the phone is able to act as a
HID device. This means that when connected to a
computer, the phone works like a combined key-
board and mouse. By assigning specific combina-
tions of computer keyboard key presses to each
key on the phone keypad, the user can use the
phone as a remote control device for computer
applications.
The phone keypad is configured for control of a
certain computer application through a special type
of HID configuration file consisting of an XML file
for the keypad and an image for the display. HID
configuration files can be dowloaded into the
phone using the normal file transfer mechanisms.
Users can even modify the files themselves on their
computers. A few configuration files pre-loaded in
the phone enable the user to navigate on a compu-
ter desktop and control presentations and media
players.

System Functions

User Settings
The following keys can be configured through the
HID configurations files: 0-9, #, * and volume up
and volume down. For each of these keys, a Usage
ID from the HID usage tables can be assigned.
The navigational key and the two action keys are
not configurable, they always provide functions for
moving the mouse and performing right and left
mouse clicks.
Characteristics
The HID configuration files, and the set of
preloaded HID configuration files, are customiza-
ble. The configuration files can be modified by the
user if transferred to, and opened on, a computer.
Used Enablers and bearers
The HID based remote control function works over
Bluetooth. It is possible to download the HID con-
figuration files via Bluetooth, infrared or a cable as
well as via WAP. It is also possible to transfer the
files to another device using Bluetooth or infrared.
Power save mode
The phone uses sniff mode on headset, handsfree
and HID connections which means reduced power
consumption and shorter connection set-up times.
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White Paper D750i
March 2005