mobile phones and media players mobile devices and … phones • communicate with other phones...

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Mobile Devices and Systems

Lesson 01Mobile Phones and Media Players


Mobile phones

• Communicate with other phones using a cellular service-provider network

• Packed with smart functions and are available in smaller sizes

• Applications of mobile phones no longer confined to telephonic communication

• Can synchronize and upload and download data to and from PCs


Mobile phones

• Provides e-mail and Internet connectivity• Even click pictures and prepare albums• Includes a personal information manager

(PIM), a handheld computer, and an entertainment device


New generation mobile phones

• Pack in everything from a computer to an FM radio and from video recording to TV viewing


Smart Phones

1. A GSM, CDMA, or tri-band wireless radio interface to a cellular network provided by a mobile service provider

2. Small area LCD display 3. A smart T9 keypad─ (A smart keypad is

one that remembers previously keyed entries.


Smart Phones

4. T9 stands for ‘text on 9 keys’. 5. A text input system that offers an

alternative to multi-tapping for entering textual characters on a numeric keypad

6. Smart T9 keypads useful for creating SMS messages and entering contact information.


Smart Phones

7. Functions as a phone as well as a PIM─phone diary, address book, task-list, calculator, alarm, and calendar

8. Ability to send and receive SMS messages of up to 160 characters

9. Ability to send and receive MMS (multi media messaging service) messages for transmission of digital images, video clips, and animations


Smart Phones

10.Provisions for games, e-commerce, and e-ticketing

11.Bluetooth communication with PCs and neighbouring devices

12. Integration of location information, GPS and maps


Smart Phones

13.WAP enabled for Web page access, download, and other Web-based applications through a WAP gateway or proxy


Multimedia Phones

1. Offers multimedia functionalities2. Functions of a smart phone, a

MultiPhone can also play MP3 format audio and MP4 format video files

3. Some phones may also support other formats such as WMA, AAC, etc.

4. N91 belongs to this series and focuses on music and media playing


Multimedia Phones

5. Possible to watch TV on a mobile phone using EDGE/EGPRS (3G) connectivity

6. Many mobile service providers link up with various TV channels

7. Enable users to enjoy mobile TV on the LCD screens of their cell phones


Multimedia Phones

8. Mobile phone gaming9. Enables users to play networked

multiplayer games10. Include cameras for still pictures and

video recording. Some phones also offer picture-editing software which enable the user to edit, crop, and refine pictures on their cell phone handsets


Nokia N91


Nokia N91

1. GSM/GPRS EDGE 900/1800/1900 MHz connectivity

2. Advanced voice calling functions such as an integrated handsfree speaker, voice dialling, voice recording, and conference calling

3. Up to 4 GB of internal dynamic memory for multimedia functions and an additional 30 MB for storing calendar, contacts, and text messages


Nokia N91

4. A music player optimized for listening to music. It can play audio files in MP3, AAC, AAC+, eAAC+, RealAudio, WAV, WMA, M4A, True Tones, AMR-WB, and AMR-NB formats. And video files in formats such as MPEG4 and RealVideo

5. External speakers using a stereo audio jack

6. FM radio and visual radio


Nokia N91

7. 2 Megapixel camera for video recording and still pictures

8. 176 × 208 pixel display with up to 262,144 colours

9. PIM for managing features such as calendar, contacts, task lists, and PIM printing


Nokia N91

10.WLAN 802.11b/g for hotspot connectivity, Bluetooth version 1.2 for wireless connectivity, and XHTML browser for Internet browsing.

11.Nokia PC Suite to synchronize data with the PC using a USB port or Bluetooth

12.Battery with a digital talk time of up to 4 hours and standby time of up to 7.9 days


Cellular Networks for Mobile Phones

• Each cell has cells adjoining it in various directions.

• Adjacent cells distinct frequencies. • To avoid interference between the

signals transmitted by different cells



• Base stations connect among themselves through either guided (wire-or fibre-based) or wireless networking or a public switching telephone network (PSTN).

• Multi-cell cellular network entails that when the transceivers (mobile phones) move from place to place, they will also have to switch from cell to cell


Handoff and Handover

• When a mobile device moves and reaches a cell boundary

• Switching on to next cell occurs by handover of the device connection to another neighbouring base station


Apple iPhone

• Commercially available from June 2007• A multimedia and Internet enable mobile

phone• The features of an iPod, a SmartPhone,

a digital camera, and a handheld computer

• Mac OS X operating system


Apple iPhone Features

• A single physical button, ‘home’• The user controls the iPhone by sliding a

finger across its touch-sensitive 3.5-inch display.

• No stylus is needed• Touch screen requires bare skin to

operate



• Various versions—4 GB and 8 GB flash memory versions

• Wide, touch-sensitive, 3.5-inch display screen, which has a resolution of 320 ×480 pixels at 160 pixels-per-inch display

• incorporates multi-touch sensing and a virtual keypad. The virtual keypad has automatic spell checking, predictive word capabilities, and a dynamic dictionary.


Apple iPhone Multi-touch sensingFeatures

• A relatively new technology in the field of human–computer interaction.

• While touch sensing commonplace for single points of contact, multi-touchsensing enables a user to interact with a system with more than one finger at a time, as in chording and bi-manual operations.



• Ambient light sensor which senses the lights in proximity and automatically adjusts screen brightness to save power

• Proximity sensor shuts down the display and touch screen when the phone is held to the ear



• Phone call by simply pointing the finger at a name or number in a call log, address book or favorites list

• Innovative use of the contacts list is that, using a new technology, the iPhone automatically synchronizes all contacts from a PC, Mac, or Internet service



• Special phone-call feature automaticallyadjusts music volume with incoming phone calls.

• An easy-to-use conference call feature lets users connect two calls with one touch of the screen

• Allows conferencing, call holding, call merging, and caller ID.



• Sports the Visual Voicemail feature which allows users to skip directly to voicemails they want to hear.

• SMS text messaging on the iPhone similar to iChat, with user dialogue encased in bubbles with familiar iChat sounds, and a touch keyboard appears below for entering text.



• Supports full iTunes integration• Provides for iPod audio and photo file

formats and functions, for example, shuffling of songs, repeat one or all, sound check on or off, and 20 equalizer settings


Mobile Digital Music Players─ Apple iPod


Apple iPod

• Includes flash-based players• Simple user interfaces • Mostly designed around a central scroll

wheel• 5th generation iPod incorporates a video

player• Use the Apple iTunes software for

transferring, storing, managing, and playing music, photos, and videos


Apple iPod MA350LL/A

• Stores 240 songs in 1 GB, 500 songs in 2 GB, and 1,000 songs in 4GB versions.

• Supports Apple audio communication by AAC files between 16 kbps to 320 kbps

• Battery life of up to 14 hours for music playback and up to 4 hours for slide shows with music



• Provides customized main menu to create multiple On-the-Go playlists

• Adjust audio-book playback speed• Clicker playback through headsets• Rate the songs• Shuffle the songs or albums



• Repeat one or all, • Sound check on or off • 20 equalizer settings • Sleep timer • Multilingual display



• Supports MP3, VBR, WAV, and AIFF file formats

• Supports JPEG file photo display and download.

• Syncs iPod-viewable photos in BMP, TIFF, PSD (Mac only), and PNG formats.



• Supports protected AAC files from the iTunes Music Store

• Supports Audible (formats 2, 3, and 4).• Supports web browsing



• Supports a calendar and task-to-do lists. • Supports ear-bud headphones and a

speaker phone.• Ports dock connector• Stereo mini jack• A USB through dock connector• USB cable


Summary

• SmartPhone• MultiMedia Phone• N91• Apple iPhone• Digital Music Player

…


End of Lesson 01Mobile Phones and Media Players

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