Sony Ericsson D750i Quick reference guide

March 2005
D750i
The True Imaging Phone

White Paper D750i
2March 2005
This document is published by Sony Ericsson
Mobile Communications AB, without any
warranty*. Improvements and changes to this text
necessitated by typographical errors, inaccuracies
of current information or improvements to
programs and/or equipment, may be made by
Sony Ericsson Mobile Communications AB at any
time and without notice. Such changes will,
however, be incorporated into new editions of this
document. Printed versions are to be regarded as
temporary reference copies only.
*All implied warranties, including without limitation
the implied warranties of merchantability or fitness
for a particular purpose, are excluded. In no event
shall Sony Ericsson or its licensors be liable for
incidental or consequential damages of any
nature, including but not limited to lost profits or
commercial loss, arising out of the use of the
information in this document.
This White Paper is published by:
Sony Ericsson Mobile Communications AB,
SE-221 88 Lund, Sweden
Phone: [phone]
Fax: [phone]
www.SonyEricsson.com/
© Sony Ericsson Mobile Communications AB,
2005. All rights reserved. You are hereby granted
a license to download and/or print a copy of this
document.
Any rights not expressly granted herein are
reserved.
First edition (March 2005)
Publication number: EN/LZT 108 7606 R1A
Preface
Purpose of this document
This White Paper will be published in several revisions as the phone is developed. Therefore, some of the
headings and tables below contain limited information. Additional information and facts will be
forthcoming in later revisions.
The aim of this White Paper is to give the reader an understanding of technology and its main applications,
as well as the main functions and features of the phone.
Note: This document contains general descriptions for this specific Sony Ericsson mobile phone.
People who can benefit from this document include:
• Operators
• Service providers
• Software developers
• Support engineers
• Application developers

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3March 2005
Sony Ericsson Developer World
On www.SonyEricsson.com/developer, developers will find documentation and tools such as phone White
Papers, Developers Guidelines for different technologies, SDKs and relevant APIs. The website also con-
tains discussion forums monitored by the Sony Ericsson Developer Support team, an extensive Knowl-
edge Base, Tips & Tricks, example code and news.
Sony Ericsson also offers technical support services to professional developers. For more information
about these professional services, visit the Sony Ericsson Developer World website.
Document history
Change history
2005-03-01 Version R1A First published version.

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4March 2005
Contents
Purpose of this document .........................................................................................2
Sony Ericsson Developer World ................................................................................3
Document history ......................................................................................................3
Product overview ........................................................................................................5
Key functions and features .......................................................................................6
Design features ....................................................................................................10
More in-phone functions .........................................................................................11
Technologies in detail ...............................................................................................14
Imaging and Entertainment .....................................................................................15
2.0 Megapixel camera .........................................................................................15
Media player ........................................................................................................16
DRM .....................................................................................................................18
Streaming ............................................................................................................20
Gaming ................................................................................................................21
SMIL ....................................................................................................................21
Messaging ...............................................................................................................22
My friends ............................................................................................................22
MMS ....................................................................................................................23
Connectivity ............................................................................................................25
Memory Stick Duo™ & Memory Stick PRO Duo™ .............................................25
GPRS ...................................................................................................................26
Bluetooth™ wireless technology .........................................................................27
IrDA ......................................................................................................................29
Synchronization and data transfer ..........................................................................30
SyncML – an open standard for synchronization ................................................30
Remote synchronization ......................................................................................31
Local synchronization ..........................................................................................32
Object exchange – ‘Send’ ...................................................................................33
Device Management ............................................................................................34
Java™ .....................................................................................................................35
Java 2, Micro Edition (J2ME™) ...........................................................................35
Java 3D™ ............................................................................................................35
Facts and figures ......................................................................................................36
Technical specifications ..........................................................................................37
Terminology and abbreviations ...............................................................................60
Related information .................................................................................................65
Documents ..........................................................................................................65
Links ....................................................................................................................65
Trademarks and acknowledgements ..................................................................65

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5March 2005
Product overview
Form follows function in this attractively designed phone with a compact body which cleverly includes
dual fronts, one for the phone and one for a real camera look and feel.
D750i offers the latest in imaging, advanced messaging and connectivity technology, with a rich offering of
multimedia and entertainment functions. This includes, for example, taking pictures with great picture
quality with the built-in 2.0 Megapixel camera and for true camera comfort, the user interface is turned
horizontal when using the camera. Easy-to-use imaging communication provides a dedicated camera but-
ton to minimize the number of steps for taking and sending a picture or video clip.
There is optimized memory for video communication with up to 38 MB of built-in memory for storage of
content such as pictures, music, ringtones, themes, games and video clips. The Memory Stick slot is
placed just beneath the keypad and a 64MB Memory Stick PRO Duo™ is included together with an adap-
tor in the kit at purchase. Memory Stick PRO Duo™ supports up to 1 GB memory capacity.
A powerful gaming solution for Advanced Java™ 3D with cutting-edge graphics, multiplayer games and a
large 1.8 inch 262k TFT colour screen lets the user get the most out of the phone when technology meets
design and creates a friendly user atmosphere.
Note: To be able to give updated information about the implemented technology and functionality of this
product as soon as possible, this White Paper will be released in updated revisions.

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6March 2005
Key functions and features
This phone holds the next step in imaging for
Sony Ericsson products. And a great one. The evo-
lution of mobile communications towards imaging
will greatly increase the scope for new applications
and services. In the area of multimedia in mobile
phones, Sony Ericsson can show its vast experi-
ence in consumer electronics and entertainment –
music, pictures and games – as well as its mobile
technology leadership.
System
D750i supports GSM (Global System for Mobile
Communications), GSM + EGSM 900/DCS 1800/
PCS 1900, GPRS (General Packet Radio Service),
Multislot class 10 (4+2) and HSCSD (Highspeed
Circuit Switched Data).
System connector
The new system connector called Fast port, is
smaller, faster, more versatile and easier to use
than the former system connector. For example,
different accessories can be connected in series,
and you can have a phone conversation and
upload music or synchronize simultaneously.
Improved battery capacity
The phone has top class talk- and standby time.
Battery description: 3.6V, 900mAh, Lithium Poly-
mer and LI-lon (built-in)
Standby time: up to 400 hours
Talk time: up to 9 hours
Direct music button
Music is only one click away.
Press the direct music button on
the side of the phone and listen to
your favourite tunes instantly
without having to move between the menus. By
default the direct music button is set to access the
most recently used feature such as the Media
player or FM Radio.
2.0 Mega pixel camera
With the 2.0 Mega pixel camera
which includes digital zoom and
auto focus, taking pictures
becomes easy and fun. The hori-
zontal user interface and the active lens cover adds
extra quality to the camera experience.
Video clips
Taking a picture or recording a
video clip and sending it as part of
a picture message or as an email
attachment is just a few clicks
away. The picture or video clip can also be sent via
Bluetooth, infrared or cable.
Digital zoom
The camera has 4x digital zoom and
32x playback zoom.
Picture light
The camera has a built in high qual-
ity light to improve taking pictures in
darker environments.
Auto focus
Auto focus can be activated by half
pressing the shutter button which is
positioned right under the users
index finger when the camera is in
use.
The MXE-60 flash
Poor lighting conditions can be
enhanced by using the MXE-60
flash which is easily connected to
the Fast port. When the MXE-60 is
used together with the phone there will be an auto-
matic red eye reduction to improve the quality
when taking a picture. Will be offered as a support-
ing accessory.
2• 0M
2• 0M
AF

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Sony Ericsson’s constant ambition of making prod-
ucts easier to use, has had a great outcome:
QuickShare™.
QuickShare is the fastest, easiest and smartest
ever way to share images. With just a few clicks,
moments can be captured with the integrated cam-
era and be shared with friends! For example, to
send a picture message with text and an attached
image or video clip takes only 4 steps. Capture an
image, press send, add text and press send again
to add a recipient.
There is more to QuickShare than sending images
with a picture or email message. QuickShare is
about ease of use for all imaging features. Images
can be shared phone to phone, with Bluetooth™,
across the room or between a phone and other
paired devices such as PDAs, computers or print-
ers. For example, it would give the user the possi-
bility of printing a picture directly from the phone
using a Bluetooth enabled HP printer.
Bluetooth™ Media Center MMV-
200
The MMV-200 is a Bluetooth hub that supports
streaming media such as images, video-clips and
music and can be used with a TV or a stereo. It has
support for mega pixel images and lets the user
transfer music to supported stereo equipment.
Sharing of mega pixel images and video clips via
Bluetooth and the phone’s Memory Stick becomes
easy and fun. The phone works as a remote control
when the MMV-200 is in use. Will be offered as a
supporting accessory.
Full graphic 262k colour screen
The large 1.8 inch colour screen,
176 x 220 pixels, enhances viewing,
facilitating high-quality multimedia
and entertainment.
User Interface (UI)
From standby, the phone features a
user interface built on the “desk-
top” concept, which is widely used
in many computer operating sys-
TFT
262 K

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8March 2005
tems. From here, navigation between different main
functions in the phone is done by selecting one of
the 3D icons which is represented.
Activity menu
Get direct access to new events, bookmarks and
shortcuts. By pressing the navigation key upwards
in standby mode the user can easily access the
activity menu and handle missed calls, new text
and picture messages, task reminders, shortcuts
and get quick access to favourite Internet book-
marks. It is also possible to get a direct overview of
applications that are running in the background, for
example the media player or the FM radio.
Sound
You can listen to sound in the phone via the
speaker (earpiece), the loudspeaker, the high-qual-
ity stereo headset or other compatible accessories.
Media player
The Media player converts the
phone into a portable MP3, MPEG4,
H263 player. Play music and video
clips, streamed or downloaded. The
folder system enables you, for example, to organ-
ize your favourite songs into groups and create
simple playlists. A play and pause function has
been added.
Radio
The new RDS (radio data system) FM
radio is built-in and offers instant and
easy access to FM radio channels.
The user also has the possibility of using it as an
alarm clock signal.
The radio can be listened to with the portable
handsfree accessory (Stereo Headset) or via the
internal speaker. With the radio, up to 20 favourite
channels can be stored with the preset function.
The portable handsfree needs to be connected at
all times when listening to the radio, since it works
as an antenna.
The RDS function brings you information directly to
the display which is sent out by the currently tuned
in radio station.
Streaming and downloading
You can view videos and listen to music that you
find on a web site by streaming them to your
phone. By streaming media such as audio and
video clips, multimedia is available in realtime with
minimal downloading or waiting time. This means
that you can start to listen to the music or view a
video clip before the complete file is downloaded
to the phone. Media can also be downloaded and
saved in the phone memory and then used with the
Media player. Media such as audio files, video clips
or slide shows can be played back at any time.
Sony Memory Stick PRO Duo™
The D750i supports Sony Memory
Stick PRO Duo™ and the Memory
Stick Duo™. The user can store dif-
ferent kinds of content (pictures,
audio, video clips etc.) on the Memory Stick, and
transfer the content to other Sony Memory Stick-
compatible consumer products, for example Sony
digital cameras, camcorders, portable music play-
ers, TVs, photo printers and computers.
USB mass storage
A USB (Universal Serial Bus) cable
is included in the box. The USB
cable allows easy connection of the
mobile phone to a computer. To be
able to use the USB cable with the phone, driver
routines must be installed on the computer. The
drivers will be available on the CD in the kit or can
be downloaded from
www.SonyEricsson.com/support.
When the user connects the phone to a computer
via the USB cable, the Memory Stick storage in the
phone will appear as a drive on the computer. The
user can then drag and drop any supported infor-
mation to complete a transfer.

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9March 2005
MMS
Reacting to the enormous popular-
ity of mobile phone messaging,
Sony Ericsson has incorporated the
latest messaging standard, along
with a colour display for an enhanced imaging
experience.
With MMS, there are many interesting applications
to subscribe to, for example, stock information,
movie trailers and weather reports.
Content such as music, video and
images may be previewed before
purchase. A unique direct-link to
download music, video, games,
themes and images, which is easy to use and
promises you best-selling content for mobile
download. By selecting PlayNow™, you can, for
example, go straight to a live list of Top Music Hits.
Content formats that are supported
All formats that are supported in the phone will be
possible to download. Music, video and images
may be previewed before purchase. The music for-
mat is MIDI, MP3 or WAV (Polyphonic 24 voices or
more).
How the service works
This service is owned by Sony Ericsson or hosted
by Sony Ericsson for a network operator. The
PlayNow™ or other premium content is maintained
and managed, for example by Sony Music or Sony
Pictures. The content on offer can easily be suited
to a specific region or operator.
Implementation costs for network operators are
minimal and server communication is based on
existing, well-established standards. Sony Ericsson
offers first or second line support according to the
agreement on hosting a white label service or not.
High level co-operation is available for the design,
look and feel, of content management.
Operator benefits
This service is aimed at providing quality and quan-
tity revenue for network operators. This is truly an
ARPU (Average Revenue Per User) driver with low
costs for operators. The process involves:
• Downloading a list
• Previewing content
• Choosing content
•Buyingcontent
Note: The availability of this unique application is
limited to specific markets, where relevant infra-
structure and agreements have been set up.
Other technical details
Security - Server communication is protected by
TLS (Transport Layer Security) and SSL (Secure
Socket Layer).
Forward lock - Content cannot be exchanged with
other devices by the user, it is limited to use or
delete.
Java 2, Micro Edition (J2ME™)
Download extra content with Java™, for
example, new information- and enter-
tainment-based applications. This gives
users a chance to personalize the func-
tions and features in their phones, and
developers the opportunity to create new
applications.
Gaming
Gaming is already a very popular
feature in mobile phones, and with
Advanced Java, users can add
new games and skill levels to fur-
ther enhance the entertainment value of
Sony Ericsson phones.
3D Games
Java 3D gaming software intro-
duces and supports cutting-edge
3D graphics. Audio developments
such as 40 tones polyphonic
sound and force feedback provide a much richer
experience. With operator support, there is the
possibility for multiplayer games to play against
friends. The large 1.8 inch TFT screen adds to a
lasting gaming experience. Downloading graphic
intensive games, matching up to the size of the
built-in memory, is also possible.

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10 March 2005
Bluetooth™ wireless technology
Using built-in Bluetooth™ wireless
technology, communication with
other Bluetooth devices is sup-
ported via a radio link. Unlike infra-
red, Bluetooth wireless technology is not
dependent on line-of-sight communication.
Several devices (simultaneous Bluetooth connec-
tions) can be connected to the phone using Blue-
tooth wireless technology up to 10 metres away.
For example, the phone can be answered with a
Bluetooth headset, when it rings and the user can
send images to another phone at the same time.
Several mobile phones can take part in a Bluetooth
supported game and the phone and a computer
can exchange data such as images, video clips,
business e-cards, music files and calendar data.
Copyright protection – DRM
DRM (Digital Rights Management) features the
rights and copy protection of downloaded content
(audio, pictures, music tones, video, entertainment
features such as games etc.).
Content-based services have great market poten-
tial, and to encourage this, Sony Ericsson plans to
support DRM in all future multimedia products.
Sony Ericsson regards DRM as a key enabler for
content-based services, and is active in supporting
the ongoing standardization work of the OMA
(Open Mobile Alliance). Furthermore, any additional
market requirements for DRM will be monitored.
Design features
Ergonomics and balance
The phone strives for a perfect balance in your
hand. Ergonomics link together with design.
Display and keypad areas
The 1.8 inch display area accommodates relatively
large keys on the keypad area.
The keys are aligned in a vertically grouped form.
The display and key areas are designed with a
sophisticated metal look.
Front
It is possible to customize the Internet button area,
which is placed just beneath the display.
The circular background form around the naviga-
tion key is designed to complement the circular
form of the camera on the camera front.
The Memory Stick slot is placed beneath the key-
pad.
Battery cover
The battery cover is designed to horizontally slide
into place whilst locking the battery in the battery
housing.

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11 March 2005
Camera
The active lens cover protects and gives the back
of the phone a digital camera look. Just slide the
cover and begin to explore the true meaning of
imaging with your phone. The picture light helps to
improve taking pictures in a dark environment.
More in-phone functions
Navigation key
The 4-directional + select key is
designed to easily navigate the
menu system. In a menu, it can be
pressed to select a feature. It can
also be used as a joystick with games.
Improved User Interface (UI)
Selection keys and the key assignment give a very
efficient interaction design with full flexibility to
handle all the new features and applications.
Sony Ericsson has focused on user-centred design
and extensive usability testing to solidify the new
UI paradigm. This ensures visibility in actions and
system status and consistency between applica-
tions and similar actions. The large, high-resolution
colour screen is easily managed with the naviga-
tional key.
This phone also supports a brand-new horizontal
camera user interface.
Setup wizard
The setup wizard makes it possible for the user to
quickly and easily prepare the phone for use.
At the first start-up, the setup wizard starts and
helps the user with a couple of core settings whilst
giving hints about the functionality of some impor-
tant keys: back and clear.
The setup wizard includes:
• setting the language
• setting time and time format
• setting date and date format
• the possibility to import contacts from a SIM
card
• hints about the Back and Ckeys.

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12 March 2005
In phone promotion video
If the user chooses to complete the set up wizard
then a short video clip which shows a few of the
different functions in the phone will follow directly.
The user can choose to either view it directly or to
view it later. The video clip is by default stored in
the File manager in Videos. The video clip high-
lights the main propositions in the phone that
brings value to the user besides voice.
PIM (Personal Information
Management)
The user can stay up to date with his or hers every-
day events by synchronizing the phone contacts,
calendar appointments and tasks in the phone with
similar programs in a computer. The USB-cable
which comes with the phone, the built in Infrared or
Bluetooth feature can be used together with the
synchronization software which is available on the
CD in the kit.
Sony Ericsson Update Service
The D750i supports update service which lets the
user download the latest operator-approved ver-
sion of the mobile device software from the web
(www.SonyEricsson.com/support). The user only
needs to connect the phone to an Internet - con-
nected computer, download the software and
update the mobile device.
The application that guides the user through the
update process is a wizard with a web and Java
interface that are seamlessly integrated. The
mobile device is identified by model, operator and
software version. This makes it possible for Sony
Ericsson to guarantee operators that only approved
software is loaded into the mobile device.
MusicDJ™
Polyphonic sounds and the MIDI
format has revolutionized the
sound quality of ringtones in
mobile phones.
By using the MusicDJ™ the user can play,
compose, edit and send melodies. The built-in
sound synthesizer uses wave tables and real
instrument sounds with 40 voices polyphony. The
new composer has an improved graphical user
interface to simplify melody handling. All new and
edited melodies are stored in MIDI format.
VideoDJ™
Create a movie by mixing video clips, pictures,
sound and text which has already been created or
stored in the phone or on the Memory Stick. The
finished result can be sent by using email,
Bluetooth or infrared. VideoDJ™ can also be used
for editing video items.
Photo DJ™
Pictures that are stored in the phone memory or on
the Memory Stick can be edited by using Photo
DJ™. The user can for example add clipart, frames,
text, effects and much more to improve a picture’s
quality after it has been captured by the camera or
received from another device.
File management
There is a file manager similar to that found on
many computers. In the file manager, the user has
an overview of the contents of the phone as well as
how much memory is allocated to each function
and feature. Folders can be created, renamed,
deleted and files can be moved between them.
From the file manager, the user can view pictures
and slide shows, as well as play music and video
clips.
GPRS (General Packet Radio
Service)
GPRS uses Internet-style packet-based technol-
ogy. GPRS gives the benefits of a permanently
available connection to the mobile Internet, but
only uses the radio link for the length of time it
takes to transfer data. GPRS offers the user the
speed needed for satisfactory mobile Internet usa-
bility. The phone supports GPRS Multislot Class 10
(4+2).
WAP 2.0 supporting XHTML™ MP
1.2
The WAP browser supports the markup languages
of WAP 2.0 – XHTML Mobile and XHTML Basic.
These two subsets of the Web standard XHTML are
supported by all major Web browsers. An XHTML
page can be viewed in both the WAP browser and
in any standard Web browser. All of the basic
XHTML features are supported, including text,
images, links, check boxes, radio buttons, text
areas, headings, horizontal rules and lists.

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13 March 2005
In addition to XHTML, the WAP browser supports
WML. The user can navigate between WML and
XHTML pages. WAP 2.0 also supports cookies,
often used by Web sites to store site-specific infor-
mation in the browser between visits to the site.
Cookies are often used by e-commerce sites (in
shopping carts and wish lists for example), and to
save the user from entering the same information
more than once.
Cascading Style Sheets (CSS)
Before style sheets were introduced on the Web,
developers had little control over the presentation
of their Web pages. An XHTML document specifies
the structure of the content, which part is a para-
graph, which part is a heading, and so on. It does
not specify how it shall be presented. Browsers use
a default presentation for documents without style
sheets. By adding a style sheet to the document
the developer can control the presentation of the
document, the colours, fonts and layout.
On the Web, the de facto standard style sheet lan-
guage is Cascading Style Sheets (CSS), specified
by the W3C and implemented in Internet Explorer,
Netscape, and Opera. For mobile phones, the OMA
has identified a subset of CSS and extended it with
OMA specific style rules. The CSS subset and the
OMA extensions are called Wireless CSS (WCSS).
The WAP browser supports WCSS 1.1.
My friends (Wireless Village)
To ensure interoperability of mobile instant mes-
saging and presence services, Sony Ericsson, Eric-
sson, Motorola and Nokia have created the
Wireless Village Solution, which is an open stand-
ard. The protocol is bearer-independent and can be
implemented in different networks. The Wireless
Village Instant Messaging and Presence Service
(IMPS) includes three primary features:
Presence
Presence information of other Wireless Village
users is received and displayed to indicate their
willingness to communicate. The user’s own pres-
ence information is also sent for others to view. If
the user is interested in another person’s presence
status, he or she can search for this person. The
presence information is displayed in a contact list if
the person has been added to the list.
Instant messaging
Instant messaging means “point-to-point messag-
ing” between Wireless Village users. An instant
message history of the communication is logged in
a file, which can be read off line. This is a sub-set
file of the whole communication and is limited by
memory.
Chatrooms
The user is able to join a chatroom and chat with
other participants/members. A chatroom can be
started by a service provider or by an individual My
friends user.
Email
With inbox, outbox, save draft and
reply options, there are all the func-
tions needed for effective email
communication in a powerful
mobile phone. Constantly connected to a POP3,
SMTP or IMAP4 email server anywhere on the
Internet, the phone stores messages dynamically,
depending on available memory, and updates the
inbox automatically and over the air. Check email
anywhere. Reply to email on the move. Friends,
family and business contacts know that when they
send email, it can be received, read and acted on
immediately. Pictures can be included in outgoing
e-mails and attachments that are received. Hyper-
links in e-mails are supported.
Personalization
With themes it is possible to change many settings
in the phone, for example colours, images and
ringtones, making it more personal. The phone
comes with a number of preloaded themes and
pictures, and more can be downloaded and
exchanged – sports, movie, seasonal and other
themes will be available on Sony Ericsson or oper-
ator sites. Other personalizable features are the
start-up screen and the screen saver. Specific pic-
tures and ringtones can also be set for each sepa-
rate name in the contacts.
Power save
Power save is the default setting for the display
light and is designed to optimize standby time.
Your screen is turned off completely a few seconds
after you last press a key. Press any key except for
the navigation key and the screen turns on again.

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14 March 2005
Technologies in detail
This chapter offers a detailed description of the technologies available in this product. Encompassing a
broad and rich range of functionality, they facilitate basic functions such as calling as well as the cutting-
edge developments found in entertainment, imaging and connectivity.

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15 March 2005
Imaging and Entertainment
2.0 Megapixel camera
With the integrated 2.0 Megapixel camera with
auto focus and digital zoom, the user can take pic-
tures and video clips and save them in the phone
memory or on the Memory Stick. The user can
send them as an attachment in an email or a pic-
ture message. The pictures or video clips can also
be sent via Bluetooth, infrared or cable.
A large viewfinder is presented in the display and
QuickShare™ offers a minimal number of steps
that take you to the send options as follows:
• 3 steps for camera: start, capture and send.
• 3 steps for video: start, capture and send.
Using the camera or video
The camera and video is started via the active lens
cover, depending on what was last used or can
also be started via the phone menu system.
Shoot modes
There is a number of different shoot modes for dif-
ferent user scenarios:
Frames
A shoot mode that lets you apply funny pre-drawn
picture frames to your images.
Panorama pictures
The camera can create panorama pictures by
stitching together several different pictures into one
large picture. This is done with the help of a unique
image processing technique.
Using this feature is very user friendly. The user
simply takes a picture and then moves the camera
slightly sideways and then takes a new picture.
This can be repeated several times until the user
selects to save the panorama where all the different
pictures are stitched together.
Burst mode
A useful function when taking photos of objects
that move quickly in the scene: it rapidly takes 4
pictures in a row automatically.
Image formats
The camera is able to take pictures in the following
resolutions:
• Small - QQVGA (160x120 pixels)
• Medium - VGA (640x480 pixels)
• Large - 2 Megapixel (1632x1224 pixels)
Megapixel pictures
Megapixel pictures can be used when a larger
viewing area is required, for example, when
uploading a picture to a computer.
Video format
Video clips can be recorded, played and sent using
the following codec:
• 3GPP™ (H.263 and AMR)
More camera features
The camera has full automatic exposure control
that selects the optimal exposure time needed to
get an excellent picture. When operating the view-
finder, the camera adjusts the exposure time.
The camera supports auto focus in full range, and
separate in macro range.
A half press on the shutter button indicates focus,
and a long press means taking a picture.
The lighting conditions found indoors and outdoors
may differ significantly. This may give rise to false
colours in photographs. To compensate for this,
the Megapixel camera is equipped with automatic
white balance. This feature automatically adjusts

White Paper D750i
16 March 2005
for different lighting environments in order to pro-
duce images with correct colours under most con-
ditions.
The camera has a built-in high quality light to
improve taking pictures in darker environments.
There is also support for external flash, the MXE-
60, which is easily connected to the phone’s sys-
tem connector.
Media player
The media player supports different
audio and video formats, streaming
as well as download and playback.
Music
The media player is a multi-format digital audio
player which enables the user to carry and play a
selection of favourite songs. A range of audio for-
mats are supported:
• AAC
Advanced Audio Coding. AAC is the latest
audio coding standard, defined in the MPEG-2
standard and is used for high-quality audio
compression. AAC provides higher quality than
MP3 at the same bit rate, or for the same audio
quality it uses a 30 percent lower bit rate. It sup-
ports the coding of multichannel audio, with up
to 48 main channels and 16 low-frequency
channels. The AAC offers three different profiles
to facilitate trade off between quality, memory
and processing power requirements. They are:
Main Profile (MP), Low Complexity (LC) and
Scalable Sampling Rate (SSR). AAC-LC is sup-
ported.
•AMR
Adaptive Multi Rate. A medium quality com-
pressed sound format.
•MIDI
Musical Instrument Digital Interface.
Unlike the other formats, MIDI is not a recording
of music, but a description which enables a
local synthesizer to play the music from the
instructions included in the MIDI file. Since a
MIDI file only represents player information, it is
far more concise than formats that store the
sound directly. An advantage is very small file
sizes. A disadvantage is the lack of specific
sound control. MIDI is ideal for polyphonic ring-
tones.
•MP3
MP3 is the file extension for MPEG audio layer
3. Layer 3 is one of three coding schemes (layer
1, layer 2 and layer 3) for the compression of
audio signals. Layer 3 uses a very efficient com-
pression method, removing all irrelevant parts of
a sound signal that the human ear cannot per-
ceive. The result is, for example, CD digital
audio (CDDA) converted to MP3 with almost
untouched quality, compressed by a factor of
around 12. The high compression of audio in
MP3 files makes them relatively small, though
MP3 files can be created with different size and
quality compromises. The small file size,
together with the excellent sound quality, are
the main reasons for the MP3-format’s massive
popularity when sharing music over the Internet.
•WAV
Windows media audio. A wave file is an audio
file format created by Microsoft, that has
become a standard PC audio file format for
everything from system and game sounds to
CD-quality audio. A wave file is identified by a
file name extension of WAV (.wav). Used prima-
rily in computers, the wave file format has been
accepted as a viable interchange medium for
other computer platforms, such as MacIntosh.
This allows content developers to freely move
audio files between platforms for processing, for
example. In addition to the uncompressed raw
audio data, the wave file format stores informa-
tion about the file's number of tracks (mono or
stereo), sample rate, and bit depth.
Songs are stored in the File manager. The folder
system enables the user to organize songs into
groups and in the Media Player the user can create
playlists of songs.
Songs can also be collected in numerous ways,
including Internet download and file transfer from a
computer.

White Paper D750i
17 March 2005
The media player is intelligently aware of other
applications in the phone:
• Playback is paused when a telephone call is
made or received.
• Playback is paused if the user starts another
application which requires the audio channels to
be dedicated to it.
• Playback of MP3 files continues if the user
switches to another application, providing
music whilst using other applications such as
the calendar or contacts, or playing games.
Polyphonic ringtones
Background
The word “polyphony” means pro-
ducing several tones at the same
time. Almost all music that we listen
to consists of polyphonic melodies.
Early Ericsson mobile phones supported a proprie-
tary non-polyphonic format called eMelody. Due to
the musical limitations of eMelody, and the popu-
larity of creating, sending and downloading ring
melodies, Ericsson and Sony Ericsson, together
with other manufacturers, created the more
advanced but non-polyphonic sound format – iMel-
ody.
The introduction of the MIDI format revolutionized
sound quality. MIDI files are small, and perfect for
mobile devices, which have limited storage capac-
ity.
MIDI is a specification for a communications proto-
col principally used to control electronic musical
instruments. MIDI is today a well known standard
used by many musicians, composers and arrang-
ers.
A MIDI signal or file does not contain any music. It
contains binary data (information) of how a melody
is played and when this data reaches a synthesizer,
the synthesizer will translate the binary data to
music, when connected to an amplifier with speak-
ers so that the sound becomes audible.
Please visit www.midi.org for more information.
SP-MIDI
SP-MIDI stands for Scalable Polyphony MIDI. SP-
MIDI is based on the MIDI format and adapted for
mobile phones and other portable products. The
objective is to secure inter operability between
products with different sound capabilities.
Sound recorder
The sound recorder can record both voice memos
and call conversations. Sound recorder saves
recordings directly to memory. The size and length
of recordings are limited by available storage
space.
Sounds are recorded in AMR format and saved in
Sounds. Recorded sounds can also be set as ring-
tones.
Video clips
Moments can easily be shared with friends and
family in other geographical sites by capturing the
moment with the video recorder and then sending
the video clip in a picture message. The video
recorder supports QCIF.
The media player supports download and playback
of MPEG-4 and H.263 formats for viewing video
clips in the phone.
Video clips may be downloaded from the Internet
or copied from a connected computer.
Files must be of types MP4 or 3GP, having video
encoded in MPEG-4 Simple Visual Profile and
audio in AAC or AMR format. Video can be
encoded in H.263. The phone encodes video in
H.263 Profile 0 Level 10 format.
Streaming support
The media player can be launched from hyperlinks
in the WAP browser, SDP files in the file manager or
in messages through hyperlinks. Content is
streamed using RTSP (Real Time Streaming Proto-
col) session control.

White Paper D750i
18 March 2005
DRM
Digital Rights Management, DRM, is a technology
that enables secure distribution, promotion, and
sale of digital media. Examples of such content
include images, wallpapers and screen savers with
themes from films, music tones from musical art-
ists, and branded games. In other words, content
providers can control how users may use different
types of content in devices, such as mobile
phones, smartphones or PDAs. Content providers
can also control the use of content in related serv-
ices, such as MMS.
Sony Ericsson is actively focusing on technology
standardization for the DRM concept, and supports
the ongoing standardization work and activities of
the OMA (Open Mobile Alliance). Sony Ericsson is
fully committed to open standard solutions in the
mobile environment and is a principal driver of
many open standard initiatives. This will ensure the
interoperability of mobile terminals in the DRM area
and also result in a strong, competitive DRM stand-
ard.
How DRM works
The control of the content in digital media is exe-
cuted by defining usage rights for the content. The
usage rights give the content providers flexibility in
the way they can publish and sell content. Rights
can be defined so that a picture can be used by
subscribers only, and rights can be defined so that
a music tone can be played only a limited number
of times or for a limited period of time. Rights can
also be defined so that the user is not able to for-
ward content to other devices.
Note: All supported image, audio and video for-
mats can be protected by DRM.
Packaging of rights and content
Rights and content can be packaged together and
delivered to the device as one DRM package. As
an alternative, content can be delivered to the
device first, followed by the rights later being
pushed to the device, for example via SMS. The
kind of service and business model adopted by the
content provider determines how the content and
rights should be packaged and delivered to the
device.
Protection properties
Content protection according to the OMA DRM
standard gets special properties. Content with for-
ward lock protection has the “Send to” option disa-
bled, which prevents it from further distribution.
Unless the content is encrypted, the user cannot
copy DRM content to other devices since the Send
to option is disabled for pictures, music tones, etc.
that are OMA DRM protected. Content providers
may choose to protect some content, but leave
some content unprotected.
Package and delivery
The OMA DRM standard defines two ways to pack-
age and deliver rights and content to a device:
combined or separated.
Combined delivery
Rights and content are packaged together into one
DRM Package and delivered to the device. In the
simplest case, no special rights are defined. The
content is just put into a DRM package, thus pro-
tected from being copied out from the device by
the user. This special case is called forward-lock.
It is useful for all types of content that the provider
wants to charge for.
Separate delivery
Rights are defined and sent in a push message.
The content is encrypted and made available for
users to download to their devices. The decryption
key is put into the rights file. Since the content is
encrypted, users cannot access it before the rights
have also arrived in the device. In this case, the
content can be freely distributed on the network,
only users with the rights file can access the con-
tent. Content providers can deliver the rights to the
user using push technology.
Downloading servers and
publishing servers
When using a mobile phone, the users do not have
to be aware of the network architecture. During a
content downloading session, typically many phys-

White Paper D750i
19 March 2005
ical servers are involved. Sometimes transactions
may take place between different companies’ serv-
ers.
The actual content may be put on one server, the
downloading server. The content can be reached,
for example, through references from one or many
other servers, the publishing servers. The content
creator puts his or her content on the downloading
server through an interface to the content provider.
The user navigates to the publishing server and
selects the content, or rather a link to or description
of the content. The content is then downloaded
from the actual downloading server.
When content is downloaded to the device, opera-
tors generate revenues from the user via, for exam-
ple, their billing system. Operators might in their
turn be billed for rights by the content aggregator,
content provider or directly by the content creator.
The flow of revenues and content. The content is viewed and selected from a publishing server and down-
loaded to the mobile phone from a downloading server. The revenue is in this case collected from the user
by the operator and transferred to the content creator via the content aggregator.
Content creator
Content provider
Content
aggregator Operator
Content Services
Revenue Revenue
Downloading
server
Ring signals
Music
Pictures
Screen savers
Films
Publishing
server
OMA Download
MMS
Other
delivery
methods

White Paper D750i
20 March 2005
Streaming
Streaming media is a method of making audio,
video clips and other multimedia available in real-
time.
The term streaming refers to the technique it is
based on. Previously an entire file had to be down-
loaded before it could be played, whereas the use
of streaming means the end user can almost imme-
diately begin to watch or listen to the content of a
requested file. The data in the file is broken down
into small packets that are sent in a continuous
flow, a stream, to the end user. It is then possible to
begin viewing the file while the rest of the packets
are transferred.
Applications
The applications which can be built on top of the
streaming services can be classified into on
demand, and live information delivery applications.
Examples of the first category are music and video
clips, news on demand as well as on demand
instruction material. Live delivery of radio and tele-
vision are examples of live information delivery. The
following video and music codec is supported:
• MPEG-4 Simple Visual Profile Level 0
• H.263 Profile 0 Level 10
• AAC
•AMR
•MP4
•3GP
Examples of usage
Streaming of music (on demand)
Browse to a Web page to check out the latest top
ten list of pop music, to see if there are any new
cool songs. Select a few songs, stream the music
to the phone and listen to the songs through the
stereo headset or via the built-in loudspeaker.
Streaming of news (on demand)
Browse to a morning paper’s Web page to check
the news. Select the five-minute version of the lat-
est financial news, stream the news to the phone,
and watch it on the bus on the way to work.
Streaming/download of music video (on
demand)
Browses to a Web page and decide to check out
the latest rock videos. Select a video to watch,
click the link and then stream a one-minute version
of the video. Download and pay for the complete
video. A memory check is automatically performed
to make sure that the phone has enough free mem-
ory.
Streaming of live radio (broadcast)
Check out and listen to a favourite radio station.
Browses to the home page and starts to stream the
content. The content is audio or audio with pictures
of the artist.
Streaming of live traffic information
(broadcast)
Find out if there is a traffic jam on the highway
before heading home. Browse a page for local traf-
fic information. If there is a traffic jam, take an alter-
native route home.
User-created content (Web album)
Show friends how fantastic the beach is whilst on
vacation. Record a video clip and upload it to a
Web album. Friends can then stream or download
the clip to their computer or phone.
Market and revenue possibilities
As streaming means “seeing the product without
having it”, it can be extensively used in the music
and film industry. There are also great revenue pos-
sibilities for subscription-based content; for exam-
ple, the user can subscribe to several on demand
services such as news and traffic information.