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Reduce The "Buzz" In Cellular Phones Harsh and noisy environments are commonplace for cell phones, personal digital assistants (PDAs), and other portable communications equipment. This fact has led to the development of new audio power amplifiers (PAs). These PAs offer fully differential... — Nicholas Holland , et al. June 2004 Analog Designs Crave Dynamic Gain Control In the process of creating various products that deal with analog signals, one frequently requested function is automatic gain control. This feature is needed to control the amplitude of a given input signal so that it always remains within some... — Dave Bordui May 2004 Co-Verify To Optimize Your Embedded Design As the capabilities of wireless networks improve and become more sophisticated, the expectations and desires of wireless-device users seem to grow exponentially. The result is an ever-increasing demand for better levels of service and performance... — Jim Kenney May 2004 TMAs Alleviate Cellular-Network Strain Network planning in GSM systems is moving toward re-engineering. This trend points to the fact that developed countries are facing problems due to overloaded networks and hot spots. Before attempting to implement any re-engineered solution, however,... — Nunu Borges de Carvalho , et al. May 2004 Co-Verification In Action In an ASIC design for a satellite ground receiving station, Hughes Network Systems encountered a problem. Its device was designed to receive packets that were transmitted from a satellite. It would then convert those packets to Internet Protocol... — Jim Kenney May 2004 New Technology Spurs Performance Optimization During the latter stages of embedded-systems design, engineers may want to analyze the effect of shifting functions from software to hardware. Such analysis helps them achieve greater efficiency and performance. Up until now, lengthy handcrafted... — Jim Kenney April 2004 Wi-Fi Popularity Extends To 5 GHz In recent years, the wireless-local-area-network (WLAN) products based on the IEEE 802.11 standards have become wildly popular. In fact, products based on this technology—also known as Wi-Fi—have been listed among the most encouraging areas... — Jayne Stancavage April 2004 Memory Motivates Cell-Phone Growth As cellular phones incorporate the multi-function capabilities that enable web-access and digital-camera functionality, their supporting memory subsystems grow increasingly complex. For engineers in today's cell-phone market, one of the main design... — Masashi Yokotsuka April 2004 Decrypt The Keys To Wireless Security Broadband wireless networking has become a technically feasible alternative for enterprise-wide IT systems. Compared to traditional wide-area networking, it offers an increasingly flexible and cost-effective approach. Plus, the costs for the... — Scott Palmquist March 2004 Test Sets Refine Handset Entertainment Wireless entertainment may soon lead to an upswing in the telecommunications market. In large part, its commercial success will depend upon the quality and usability of new mobile terminals. To run increasingly sophisticated games and other... — Jan Schiefer March 2004 3G-324M Helps 3G Live Up To Its Potential Broadband wireless is now a reality. Towers are converting to 3G throughout Europe and Asia. 3G-enabled phones are flying off the shelf and service providers are making a substantial commitment to the new format. At the same time, consumers are... — Eli Orr February 2004 Technology Advances WLAN Implementations More options are available to developers of 802.11 wireless-local-area-networking (WLAN) products than ever before. To support a growing number of coding schemes and data rates, industry-standards bodies continue to establish new specifications.... — Jeffrey Feigin February 2004 UWB's Promises Hold Industry-Wide Appeal Ultra Wideband (UWB) is one of the latest radio-frequency device technologies to hit the news. Yet a number of people are still unaware of what sets this technology apart. To send information through the air over short distances, UWB uses the... — William Stumpf November/December 2003 Java Security Guards Embedded Networks From the beginning, the Java programming language was designed with security in mind. Yet developers remained suspicious about its secure nature. They were blinded by the novelty of a portable language that could transfer applications from system to... — Prithvi Rao November/December 2003 Wireless Security Re-Invents Itself Again The face of computing is being changed by innovations in wireless technology. For example, users are no longer bound to the traditional "wires" that made up their computing environment. Thanks to technologies like Wireless Local Area Networks (WLANs),... — Victor Chang November/December 2003 Slice And Dice Chunks Of Radio Spectrum The path to real-time wideband channelization is camouflaged by different techniques. Among the competing approaches are Pipelined FFT, polyphase DFTs, multiple digital downconverters (DDCs), and both the Pipelined Frequency Transform (PFT) and its... — John Lillington November/December 2003 Voice-Based Networks Fail Broadband Needs Existing wireless cellular networks were designed to transmit circuit-based voice signals across the air. This task is a very different undertaking than transmitting data or packet-switched information. Third-generation (3G) operators and vendors must... — Ronny Haraldsvik October 2003 Wireless Invades The Medical Front In the world of medical science, mobile circuits are quickly evolving into less cumbersome devices. They are providing more information and using less power. At the same time, they're improving quality of life. Although this evolution is only... — Thad Smith September 2003 System Verification Comes To SystemC It is widely accepted that system verification is the most imposing obstacle to meeting time-to-market schedules. Now, the verification process has become even more time-consuming and expensive. These factors can be attributed to rising chip... — Adam Rose September 2003 Analyze And Optimize Throughout The Flow The increased use of portable, wireless, battery-powered electronic systems is driving the demand for integrated-circuit (IC) and system-on-a-chip (SoC) devices. After all, these devices consume the smallest possible amounts of power. With every new... — Sameer Patel  prev. page
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