Mobile Devices and Systems Lesson 01 Mobile Phones and Media Players

Transcription

2 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 Oxford University Press All rights reserved. 2

3 Mobile phones Provides and Internet connectivity Even click pictures and prepare albums Includes a personal information manager (PIM), a handheld computer, and an entertainment device Oxford University Press All rights reserved. 3

5 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. Oxford University Press All rights reserved. 5

6 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. Oxford University Press All rights reserved. 6

7 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 Oxford University Press All rights reserved. 7

8 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 Oxford University Press All rights reserved. 8

10 Multimedia Phones 1. Offers multimedia functionalities 2. 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 Oxford University Press All rights reserved. 10

11 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 Oxford University Press All rights reserved. 11

12 Multimedia Phones 8. Mobile phone gaming 9. Enables users to play networked multiplayer games 10.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 Oxford University Press All rights reserved. 12

14 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 Oxford University Press All rights reserved. 14

15 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 Oxford University Press All rights reserved. 15

16 Nokia N Megapixel camera for video recording and still pictures pixel display with up to 262,144 colours 9. PIM for managing features such as calendar, contacts, task lists, and PIM printing Oxford University Press All rights reserved. 16

17 Nokia N91 10.WLAN b/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 Oxford University Press All rights reserved. 17

18 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 Oxford University Press All rights reserved. 18

19 Cellular Networks for Mobile Phones Base stations connect among themselves through either guided (wireor 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 Oxford University Press All rights reserved. 19

20 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 Oxford University Press All rights reserved. 20

22 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 Oxford University Press All rights reserved. 22

23 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 Oxford University Press All rights reserved. 23

24 Apple iphone Features Various versions 4 GB and 8 GB flash memory versions Wide, touch-sensitive, 3.5-inch display screen, which has a resolution of 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. Oxford University Press All rights reserved. 24

25 Apple iphone Multi-touch sensing Features A relatively new technology in the field of human computer interaction. While touch sensing commonplace for single points of contact, multi-touch sensing enables a user to interact with a system with more than one finger at a time, as in chording and bi-manual operations. Oxford University Press All rights reserved. 25

26 Apple iphone Features 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 Oxford University Press All rights reserved. 26

27 Apple iphone Features 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 Oxford University Press All rights reserved. 27

28 Apple iphone Features Special phone-call feature automatically adjusts 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. Oxford University Press All rights reserved. 28

29 Apple iphone Features Sports the Visual Voic feature which allows users to skip directly to voic s 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. Oxford University Press All rights reserved. 29

30 Apple iphone Features 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 Oxford University Press All rights reserved. 30

32 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 Oxford University Press All rights reserved. 32

33 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 Oxford University Press All rights reserved. 33

34 Apple ipod MA350LL/A 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 Oxford University Press All rights reserved. 34

36 Apple ipod MA350LL/A 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. Oxford University Press All rights reserved. 36

38 Apple ipod MA350LL/A 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 Oxford University Press All rights reserved. 38