Playing nice -- LBS and Hybrid location technologies
The demand for Location-Based Services (LBS) has finally moved beyond the early-adopters with the rise in popularity of the iPhone. With consumer demand and the number of applications rising fast, there is a key prerequisite for their success: quick and accurate determination of a user's current location. Can it be done? Read and find out.
Adapting UI designs to multiple embedded/mobile device display needs
The key elements and approaches needed to build user interfaces to meet the varying display requirements of mobile devices and any embedded system with a display and GUI.
Multihoming support for data communication over cellular networks
A guide to interfacing an embedded system's application software with a second generation wireless communications protocol stack and how to configure and manage multi-homing support over GPRS modems using unreliable wireless channels.
Blackberry Storm has some good qualities, and some not so good
The imaging and telephony functions were up to snuff. The UI left a little to be desired.
How I survived a Zune HD, and even came to like it
The Zune HD, Microsoft's latest answer to the popular Apple iPod, is a reasonable alternative to the iTouch player, but users need to be willing to climb what were for me some pretty steep and frustrating hurdles in setting up and figuring out how to use the Microsoft device.
Use a supplemental UMTS/HSDPA network architecture to increase data speed & bandwidth
This article proposes a supplemental UMTS/ HSDPA network architecture that cost-effectively improves service by increasing isolation to reduce interference, while increasing data speed bandwidth and coverage.
Multimode wireless devices: It's the software, stupid!
The advent of parallel processing architectures is a big step toward realizing seamless, intelligent connectivity among 3G and 4G wireless standards, but the potential show stopper is the software. Thankfully, some companies are making progress when it comes to enabling hardware and software to work together in harmony.
PRODUCT HOW-TO: Simplify the design of the cellular base station digital predistortion subsystems
How to use Linear Tech's LTM9003 digital predistortion micromodule to build a fully integrated digital predistortion (DPD) reciver for use in cellular network base station designs.
Increase the speed while reducing the power in your MID's display
The popularity of Mobile Internet Devices (MIDs) will surely rise as the user experience improves.
High-Performance LED Flash for Camera Phones
Light-emitting-diode (LED) technology is widely used to provide illumination for the pixels in small format liquid crystal displays (LCDs) in battery-powered applications. White light, emitted by the LEDs, is transmitted through a polarizer to the LCD where the light can be blocked or attenuated and sent on to RGB color filters to create colored light.
Book Excerpt, part 5 of 6: LTE and the Evolution to 4G Wireless--Design and Measurement Challenges
Chapter 2 of this just-published book explores and explains all technical aspects of 3GPP LTE cellular technology
Content transfer: Speed versus ease of use
The concept was to look at download speeds across three different interfaces--USB, WiFi and 3G--to compare and contrast the speed and ease of use. Three different cellphones were tested: iPhone 3G, BlackBerry Bold and BlackBerry Storm.
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MOBILE HANDSET DESIGN CENTER ARCHIVE
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