Baseband/Multimedia Processing
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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.
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.
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.
Pump up the volume! Enhance audio quality and power in mobile phones and portable media players
There are some inherent problems with delivering high-power and high-quality audio in portable devices. This article discusses a power architecture (BriteSound) that uses a thin, prismatic supercapacitor combined with a Class-D audio amplifier with an integrated boost converter to deliver five-watt power bursts to offload peak-power functions from the battery.
Touchscreens 101: Understanding touchscreen technology and design
This article looks at the three basic technologies and their key attributes
Dealing with touch sensitive areas of graphical objects
Niall Murphy explores various algorithms for establishing the exact point of intended touch on an GUI and whether those touches should be applied to an object at or near that location
Video: B'com, Toshiba win sockets in iPhone 3GS
Teardowns of the third generation Apple iPhone reveal a more integrated—and probably lower cost--handset thanks in part to new design wins for Broadcom and Toshiba that caused one analyst to quip the 'S' in the iPhone 3GS may stand for savings.
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«March 2010 Baseband/Multimedia Processing
About the Mobile Handset Baseband/Multimedia Processing How-To Section
Mobile Handset DesignLine's Multimedia and Baseband Processing section is the premier design resource for engineers looking to implement Multimedia and Baseband Processing designs for handsets aimed at 2G, 2.5G, 3G and WiMAX networks, including those handsets that may also integrate Wi-Fi, Bluetooth, WiBree, ZigBee and Ultrawideband capability.
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