As a cell phone user, you probably feel overwhelmed with all the changes that are coming about with cell phones. Cell phones are ever changing with new gadgets, services, and phones being released on a continual basis. Below we’ve put together some cell phone facts every user should know. Don’t get caught in a cell phone trap, but become educated before you make your next phone purchase.

Cell Phone Batteries

Every cell phone user occasionally experiences the “race against battery life” on their cell phone. You try to use up every ounce of power there is before recharging. Unfortunately, this can cause many problems with your battery later on. Primarily, it could shorten the life of your battery between charges to the point where you’re charging more than you’re talking!

There are several ways to prolong the life of your cell phone battery. Keep your backlight off unless you know for sure you’ll need it. This might be annoying at first, but it will save battery life. When traveling in areas where there is no coverage or there is only roaming coverage, turn off your cell phone completely. The cell phone uses a lot of battery power while trying to locate a network. In addition, try to limit your conversations on your cell phone. The longer you talk, the more battery power you will use. Also, limit your usage of cell phone games or Internet browsing. These use a lot of battery power even though you’re not actually talking.

Downloading Woes

When downloading Web features, games, ringtones, wallpaper, and screensavers, be sure there are no recurring fees. Although companies may not state it upfront, some of these features have recurring monthly fees. If you purchase a cell phone for your child, find out if you can block these features. Or, find out if there’s a way that you as a parent can order features, but your child cannot.

The Fine Print of Cell Phone Purchases

When buying a cell phone with a one- or two-year contract or pay-per use agreement, be sure to read the fine print. Consider how many minutes you plan to use the cell phone each month. Weigh the prices of both types of agreements before signing on the dotted line. If you plan to use the cell phone a lot, then a long-term contract might be worth it.

Consider the features you want. With long-term plans, you can often get more features on your cell phone for less money or even as a bonus at no charge. Ask if all your features, such as caller ID, will work when roaming. Also with any plan, consider if long distance is included. Find out the usual roaming charges, connection fees (if applicable), and if there are any other hidden fees in the plan.

Ask about Factory Warranties

Some cell phone companies will replace your cell phone if it breaks or is lost or stolen. Consider the warranty of a cell phone before buying. Cell phones are typically carried everywhere you go: in a purse, pants pocket, shirt pocket, on a belt case, and even out in wet weather. With cell phones being so mobile, they can easily get broken or damaged. The warranty will give you peace of mind when carrying and using your cell phone.

Buying Cell Phones Online

When buying cell phones online, be sure the phone is up-to-date and carries all the features you want. You can buy your cell phone online and still visit a local venue to purchase minutes or to sign up for a contract. Just be sure and buy from a company you trust.

There are also electronics shopping malls online where you can find many brand names of cell phones, a PDA, or other electronics at discount prices, such as Sony, Nokia, Motorola, Samsung, Blackberry. You can shop for other products while at the mall, including PS2 machines or games, computer supplies, iPods, and an Xbox.

In recent years, there has been an extensive boost in technological concepts related to electronics and electrical domain. Electronic engineering is a constantly changing and widening branch of technology. Electronics and semiconductor engineering is one of the largest and fastest growing industries. This growth has entailed a wide range of patent filing, all through. Electronics and semiconductors covers a wide range of applications we use daily, such as Television, Radio, computers, telecommunication etc, which make our life easier and enjoyable. It helps us see, hear and communicate over enormous distances and accomplish tasks faster. Electronics plays a major role in industries like oil, energy, agriculture and many other important sectors of economy. Electronics and semiconductor patents form a subclass of electrical patents. The electrical patenting class is broadly classified into many subclasses based on the area of nce. Some subclasses include Digital Electronics, Analog Electronics, Micro Electronics, Fuzzy Electronics, Application Specific Integrated Circuit Design, Semiconductors and Semiconductor devices, etc.

Patents are further classified based on the development of their active elements involving the design and testing of electronic circuits that use the electronic properties of components such as resistors, capacitors, inductors, diodes , microcontrollers, microprocessors and transistors to achieve a particular functionality. For example, 326 is the generic class for patents related to electronic digital logic devices, circuitry and sub combinations thereof, wherein non-arithmetical operations are performed upon discrete electrical signals representing a value normally described by numerical digits. It further has subclass 12 for redundant logic having a flip flop and subclass 37 for a multifunctional or programmable logic having a flip flop.

Integrated circuits and processing architectures are other categories protected by patents. Different aspects of these technologies such as architecture, applications or designs are protected by employing different intellectual property laws. As an invention, hardware architecture and their applications are protected as utility patents while Integrated circuit designs are protected as design patents. Hence, both design concepts and hardware are protected by patents. In discharging its patent-related duties, the United States Patent and Trademark Office (USPTO) examines patent applications and grants patents after establishing the patenting class and patentability of an invention.

Vacuum Technology & Coating product showcase includes power supplies used in a wide variety of vacuum-based production deposition and coating applications.

Deposition and coating systems require extremely dependable power supplies. Fortunately, a wide array exists to fit virtually any application. With increasingly demanding deposition and coating system requirements, and the ever present cost considerations for industrial and scientific applications, the expectations for power supplies increases.

Power supplies provide outputs of DC or AC in a wide range of power levels. Power supplies can have primary outputs ranging from very low to hundreds of kilowatts with frequencies from DC to 13.56 MHz or beyond. Depending upon the application, voltage or current regulation may be more important. Current ratings also can range from low to very high. These are but a few considerations when selecting a power supply.

Options Abound

How crucial is size and are matching networks and cooling systems needed? What kind of output programming and control are needed and what specific computer or network digital interface needs must be met? There are many choices to meet the user needs.

With DC supplies, there are steady and pulsed outputs. Typical DC power options include high-current, high-voltage and voltage-regulation. Pulsed DC supplies, for example, can improve surface uniformity in applications such as semiconductor wafer copper plating.

For AC supplies, many factors must be considered. High-frequency power sources must deliver reliable power for continuous, demanding use in vacuum applications including vacuum processing such as PVD, RF sputtering, plasma etching or deposition and reactive ion etching.

Very Reliable Power Required

Analytical instrumentation power supply voltage requirements can range from just a few volts to several hundred thousand volts, often with multiple critical voltages in a particular instrument. Standard and custom high voltage power supplies are used in instruments for spectroscopy and many other analytical imaging and process applications. Voltage ripple (or lack thereof), stability over time, repeatability and accuracy are factors to consideration if reliable scientific data are the goal. For analytical instrumentation used in production process control, reliability is very important.

The resonant frequency of this arrangement is determined by the values of the ballast inductance L and the tank capacitance C. The frequency is not affected by the winding resistance R or any resistive ballast added. (Typically the resonant frequency will lie between 10Hz and 500Hz.)
Resonance will occur regardless of whether the transformer is ballasted at the primary or the secondary, but it is easier to understand if we assume the ballast inductance is in series with the secondary side of the transformer. If this assumption is made then we can consider the HV transformer as presenting a stiff HV supply so the circuit can be simplified to get that shown on the left. The values of L and R are derived from an actual 10kv/100mA Neon sign transformer.

It demonstrates four things:-

1.It shows how important it is to use correctly set safety gaps to prevent excessive voltage rise if using a capacitor which is close to “matched” size.
2.It shows that the tank capacitance effectively cancels out the ballast inductance near the resonant frequency. In this example at 50Hz the current is 2A which is the result of current limiting by only the winding resistance. The inductive ballasting effect of the magnetic shunts is eliminated.
3.It shows that current will be drawn from the supply even though no power is being taken from the system yet. (There is no spark gap to discharge the capacitor.) The current flowing is reactive current and represents energy “sloshing” in and out of the tank capacitor as it is charged in opposing directions by the positive and negative cycles of the supply.
4.It shows the “shape” of the LC resonant response before the effect of a spark gap is introduced.
The addition of a correctly set spark gap will limit the amount of voltage rise permitted whilst still getting the benefit of the increased charging current.

Resonant charging can take place with both neon sign transformers and inductively ballasted power transformers. The only difference is that the ballast is built into the neon transformer. Power transformers, however, have much lower internal losses. This results in a higher Q value and causes more intense voltage and current rises around the resonant frequency.

Due to the intensity of the resonant rise effect, it is not always desirable to use a “matched” capacitor which causes resonance at exactly the line frequency. The graph below shows the effect of using “smaller than resonant” and “larger than resonant” capacitors on the same 10kv/100mA neon supply. (The supply still has no spark gap connected, only the tank capacitor.)

Spark gap misfires,

Because resonant voltage rise thrives on time, (time required for the voltage to build-up,) it is worth considering what would happen if our spark gap was to accidentally miss a firing. If a rotary gap misfires, there cannot be another firing until the next time that the electrodes are aligned. This means that when a firing is missed there is twice as long between discharges of the tank capacitor, and this allows the voltage to ring up to a higher voltage.

Computer based simulation packages such as PSpice are ideal for predicting what would actually happen in such circumstances without risking any expensive components.

System Stored Procedures System stored procedures are packaged with SQL Server. Many procedures are used to administer SQL Server, but some are utilities that can be profitablly used by developers. They are global, and can be called from any database application without their fully qualified name. (They are all owned by dbo.) . They are all stored in the Master database, and have the prefix sp_. This is a reason why it is considered unwise to name local stored procedures with the sp_ prefix. They can be read by viewing their properties in the Query Analyzer.

Catalog Procedures
Implements ODBC data dictionary functions and isolates ODBC applications from changes to underlying system tables.

Cursor Procedures
Implements cursor variable functionality.

Database Maintenance Plan Procedures
Used to set up core maintenance tasks necessary to ensure database performance.

Distributed Queries Procedures
Used to implement and manage Distributed Queries.

Full-Text Search Procedures
Used to implement and query full-text indexes.

Log Shipping Procedures
Used to configure and manage log shipping.

OLE Automation Procedures
Allows standard OLE automation objects to be used within a standard Transact-SQL batch.

Replication Procedures
Used to manage replication.

Security Procedures
Used to manage security.

SQL Mail Procedures
Used to perform e-mail operations from within SQL Server.

SQL Profiler Procedures
Used by SQL Profiler to monitor performance and activity.

SQL Server Agent Procedures
Used by SQL Server Agent to manage scheduled and event-driven activities.

System Procedures
Used for general maintenance of SQL Server.

Web Assistant Procedures
Used by the Web Assistant.

XML Procedures
Used for Extensible Markup Language (XML) text management.

General Extended Procedures
Provides an interface from SQL Server to external programs for various maintenance activities.

Introduction

Every day millions of people use cellular phones over radio links. With the increasing features, the mobile phone is gradually becoming a handheld computer. In the early 1980’s, when most of the mobile telephone system was analog, the inefficiency in managing the growing demands in a cost-effective manner led to the opening of the door for digital technology (Huynh & Nguyen, 2003). According to Margrave (n.d), “With the older analog-based cellular telephone systems such as the Advanced Mobile Phone System (AMPS) and the Total Access Communication System (TACS)”, cellular fraud is extensive. It’s very simple for a radio hobbyist to tune in and hear cellular telephone conversations since without encryption, the voice and user data of the subscriber is sent to the network (Peng, 2000). Margrave (n.d) states that apart from this, cellular fraud can be committed by using complex equipment to receive the Electronic Serial Number so as to clone another mobile phone and place calls with that. To counteract the aforementioned cellular fraud and to make mobile phone traffic secure to a certain extent, GSM (Global System for Mobile communication or Group Special Mobile) is one of the many solutions now out there. According to GSM-tutorials, formed in 1982, GSM is a worldwide accepted standard for digital cellular communication. GSM operates in the 900MHz, 1800MHz, or 1900Mhz frequency bands by “digitizing and compressing data and then sending it down a channel with two other streams of user data, each in its own time slot.” GSM provides a secure and confidential method of communication.

Security provided by GSM

The limitation of security in cellular communication is a result of the fact that all cellular communication is sent over the air, which then gives rise to threats from eavesdroppers with suitable receivers. Keeping this in account, security controls were integrated into GSM to make the system as secure as public switched telephone networks. The security functions are:

1. Anonymity: It implies that it is not simple and easy to track the user of the system. According to Srinivas (2001), when a new GSM subscriber switches on his/her phone for the first time, its International Mobile Subscriber Identity (IMSI), i.e. real identity is used and a Temporary Mobile Subscriber Identity (TMSI) is issued to the subscriber, which from that time forward is always used. Use of this TMSI, prevents the recognition of a GSM user by the potential eavesdropper.

2. Authentication: It checks the identity of the holder of the smart card and then decides whether the mobile station is allowed on a particular network. The authentication by the network is done by a response and challenge method. A random 128-bit number (RAND) is generated by the network and sent to the mobile. The mobile uses this RAND as an input and through A3 algorithm using a secret key Ki (128 bits) assigned to that mobile, encrypts the RAND and sends the signed response (SRES-32 bits) back. Network performs the same SRES process and compares its value with the response it has received from the mobile so as to check whether the mobile really has the secret key (Margrave, n.d). Authentication becomes successful when the two values of SRES matches which enables the subscriber to join the network. Since every time a new random number is generated, eavesdroppers don’t get any relevant information by listening to the channel. (Srinivas, 2001)

3. User Data and Signalling Protection:
Srinivas (2001) states that to protect both user data and signalling, GSM uses a cipher key. After the authentication of the user, the A8 ciphering key generating algorithm (stored in the SIM card) is used. Taking the RAND and Ki as inputs, it results in the ciphering key Kc which is sent through. To encipher or decipher the data, this Kc (54 bits) is used with the A5 ciphering algorithm. This algorithm is contained within the hardware of the mobile phone so as to encrypt and decrypt the data while roaming.

The new FPGAs are based on second-generation, low-impedance metal-to-metal ViaLink II antifuse technology. Toggle flip-flop speeds exceed 250MHz, data path speeds exceed 150MHz and pin-to-pin delays are under 7 nanoseconds, QuickLogic said.

Cypress, meanwhile, believes it can gain ground fast in the fiercely competitive PLD market by leveraging its own process technology and QuickLogic’s ViaLink antifuse design. Another PLD vendor, Xilinx, last week revealed that it too is “definitely looking at”e developing antifuse FPGAs–despite its commitment thus far to statice-RAM based technology.
Whilee Cypress is betting that it can make big inroads in the FPGA market, some competitors said that remains to be seen. Roger Herbst, Cypress’ strategic marketing manager, PLD products, said, “Manufacturing in volume is really the key here. We don’t intend to cast ourselves as a speede boutique. We have a very cost-competitive process. We’re not looking for a nichee corner of the market, we want to achieve big volume quickly.”

“Cheaper alone is not enough to get an established foothold in the market,” Mr. Herbst said. “Once you have penetrated the market with cheaper products, the guy you sold to will need speed.” He added that getting in is tough, but once there, success comes easier. “The difference between penetrating and proliferating is that once you’re in, proliferating is easy,” he said.

For QuickLogic, its relationship with Cypress is the latest in a series of pacts with development and foundry partners. QuickLogic is switching from its current foundry partner, VLSI Technology, which uses a 1.0 micron process.

QuickLogic orginally developed the ViaLink technology at an Advanced Micro Decives foundry. “Essentially, AMD provided an R&D foundry,” said John Birkner, QuickLogic’s co-founder and vice president, CAE Tools.

Mr. Birkner said VLSI continues to manufacture the 1.0 micro versions of QuickLogic’s FPGAs based on ViaLink I technology, while QuickLogic switches to Cypress as a foundry for its new WildCat products. He left open the possibility that VLSI may be used as a second source for future QucikLogice FPGA products. “That’s not to say we won’t bring up our products on a answer VLSI technology,” Mr. Birkner commented.

Meanwhile, Cypress’ relationship with Altera, another foundry customer, is also changing. Cypress is still manufacturing Altera’s Max 5000 CPLDs and, in fact, is doing a redesign of the Max 5000 products, a Cypress spokesman said.

However, Cypress and Altera have gone their separate ways for the next generation CPLDs. Cypress president and CEO T.J. Rodgers recently said Cypress’ next-generation CPLDs, expected later this year, will be called the 37X family. Altera has introduced its next-generation CPLDs, called the MAX 7000 line–which are not manufactured by Cypress.

As a result, Cypress’ marketing and foundry relationship with QuickLogic may be gaining in importance. In June, 1992, Cypress and QuickLogic signed a joint technology and marketing agreement to develop FPGA products, technology and design tools.

Dan McCraine, Cypress’ vice president of sales and marketing, stated “Cypress has entered the FPGA market with the industry’s highest performance products. Our advancede fabrication facilities and off-shore assembly allow us to provide these devices on a high-volume, low-cost basis. Cypress is well-positioned to quickly gain market share in the high-growth FPGA market.”

Cypress’ Mr. Herbst said that companies with their own fabs have an advantage in the PLD market. “We have our own fab and development and you can do things you can’t do with off-the-shelf. There are four steps in the manufacturing process and you have to control the hell out of those steps. Also, we’ve applied planarization to the wafer. The cost structure drops by 60 percent,” Mr. Herbst added.

SUNNYVALE, Calif. — QuickLogic Corporation (Nasdaq:QUIK), the pioneer of Embedded Standard Products (ESPs) and a leading supplier of uWatt FPGAs, today announced the production availability of military-temperature versions of its popular Eclipse II FPGA product. The Eclipse II family of uWatt FPGAs provide customizable logic solutions for critical military applications including aircraft navigation and flight controls, data recorders, weapons systems and military communications equipment. An increasing number of these applications, such as the Joint Tactical Radio System (JTRS), are becoming portable or battery-operated, fueling a requirement for semiconductor suppliers to these markets to concurrently increase functionality at reduced power consumption.
Traditionally, logic solutions for low power military applications have been implemented exclusively in ASICs, due largely to the fact that FPGAs could not minimize their static and dynamic power consumption to an acceptable level. ASICs, however, require lengthy and highly complex development and debug cycles and have procurement models with large minimum order quantities. The industry-leading low power reality of Eclipse II uWatt FPGAs addresses the needs of these power-critical military application segments such as portable personal communications, global positioning and smart munitions. Additionally, the adoption of a device from the Eclipse II uWatt FPGA family drastically reduces design cycle time to a matter of weeks at a fraction of the total cost of ownership of ASICs.
“QuickLogic has a long track record of delivering programmable logic solutions to a broad spectrum of applications within the military and aerospace market segment. The security, non-volatility and instant-on nature of our patented ViaLink(R) technology make our devices an excellent fit for systems that demand high reliability,” said Brian Faith, Senior Director of Product Marketing.

Technical Information

The entire Eclipse II product family is based on QuickLogic’s patented ViaLink metal-to-metal programmable interconnect technology, enabling the low power, non-volatility, and security demanded by rugged military applications. The quiescent current of the Eclipse II products are as low as 70 uAmps at 125C, two orders of magnitude lower than competitors’ FPGAs under comparable conditions. Densities range from 47K to 320K system gates. Eclipse II incorporates embedded dual-port SRAM and supports a wide range of I/O standards to enable several board-level components to be integrated into a single chip. For technical information and specs, go to www.quicklogic.com/lowpower.

Software and Intellectual Property Support

The Eclipse-II FPGA family is supported in QuickLogic’s QuickWorks version 9.7 development tool suite and is available for download from www.quicklogic.com/software. QuickLogic offers Intellectual Property targeted specifically for Eclipse-II FPGAs including industry-standard memory and I/O bus interfaces, DSP functions, CPU cores and other commonly used peripherals.

Pricing and Availability

The Eclipse-II Mil-Temp FPGA family of devices starts at $15.00 in 5K piece quantities. For additional company and product information, please go to www.quicklogic.com.

Safe Harbor Statement

This news release contains forward-looking statements based on current expectations that involve risks and uncertainties. QuickLogic’s actual results may differ from the results described in the forward-looking statements. Factors that could cause actual results to differ include, but are not limited to, general conditions in the semiconductor industry, development risks, market acceptance and the impact of competitive products. These and other risk factors are detailed in QuickLogic’s periodic reports and registration statements filed with the Securities and Exchange Commission.

EL SEGUNDO and SAN DIEGO, Calif. - July 20, 2006 - Applied Wave Research, Inc. (AWR[R]) and Peregrine Semiconductor today announced the availability of a process design kit (PDK) for Peregrine’s UltraCMOS complimentary metal oxide semiconductor (CMOS) silicon-on-sapphire (SOS) process in AWR’s Analog Office[R] design suite, a software product developed specifically for analog and radio-frequency integrated circuit (RFIC) design. The delivery of the UltraCMOS Process Design Kit is the first step in a long-term collaboration between the two companies to deliver complete RFIC design solutions for specialized high-frequency RF applications. Analog Office design software and the UltraCMOS Process Design Kit will help design engineers significantly shorten IC development cycles, accelerate tape-out to Peregrine’s process, and speed wireless products to market.
“Peregrine Semiconductor is a global leader of high-performance RF CMOS solutions and its UltraCMOS process technology drives unprecedented levels of monolithic integration throughout a broad portfolio of mixed-signal RFICs,” said Sarkis Narkizian, vice president of RFIC business development at AWR. “The open Analog Office RFIC design platform and the UltraCMOS Process Design Kit coupled with Peregrine’s semiconductor manufacturing leadership will result in a top quality design solution that will greatly benefit not only the customers of both companies, but the high-frequency design community as a whole.”

“Peregrine is pleased to offer an UltraCMOS Process Design Kit for AWR’s Analog Office design environment,” said John Sung, director of CAD engineering at Peregrine. “After using Analog Office during the PDK development process, our designers were impressed with the tight electrical and physical integration, ease-of-use, and the environment tailored for high-frequency RF designers. The PDK includes a complete set of validated schematic symbols, simulation models, and fully parameterized layout cells that are characterized to match the UltraCMOS process performance.”

The newest AWR-based PDK is based on the GA and GC variants of Peregrine’s UltraCMOS process, which enables the combination of high-performance RF, mixed-signal, passive elements, nonvolatile memory, and digital functions on a single device without blocking capacitors. By utilizing a sapphire substrate, which is a near-perfect insulator, UltraCMOS wafers enjoy low defect density for simpler construction; dielectrically isolated transistors for excellent power handling and multiple thresholds; and inherent CMOS logic levels. UltraCMOS delivers the fundamental reliability, cost effectiveness, high yields, scalability, and monolithic integration of standard CMOS, while achieving peak RF performance traditionally expected from the more exotic process technologies.

First a signal in simple terms-in process automation, it is a physical variable whose parameters carry information about another variable. Signal conditioning is processing the form or mode of a signal to make it intelligible to or compatible with a device. This includes manipulation such as pulse shaping, pulse clipping, digitizing, and linearizing. Signal conditioning also can refer to modules that perform signal conversion, buffering, isolation, or mathematical operations on the signal when needed. For analog data, a signal conditioner is a circuit module that offsets, attenuates, amplifies, linearizes, and/or filters the signal.
The SensorLex 8B isolated analog signal conditioners provide Instrument Class performance in a package 20% the size of competing modular products. The small size is suited for embedded or portable applications such as mobile test stands, COTS military and defense applications, miniaturized security and surveillance systems, embedded process controls for semiconductor manufacturing equipment, and any other embedded industrial data acquisition system.

The 8B line of miniature isolated analog signal conditioners provides 17 family groups with a total of 102 models that interface to a wide variety of voltage, current, temperature, position, frequency, and strain measuring devices. Housed in a solidly potted thermoplastic plug-in-the-panel package measuring only 1.11 × 1.65 × 0.4 inches, the 8B’s industrial enclosure provides impact properties, dimensional stability over temperature, chemical resistance, and a flammability rating of UL-94 V-0. The line will also be available in a DIN mount configuration in the near future.
Analog signal conditioners

The MINI MCR signal conditioning family, with its 6.2mm housing and power bussing capabilities, is designed to save space and reduce installation time. Universally configurable and dedicated versions of the modules are available to convert signals from RTDs, thermocouples, and various analog sensors. A signal splitter, single and multi-channel, loop powered modules are also available.

Application flexibility is achieved by custom configuration of measuring range settings, input type selection, and three possible methods of powering the modules. Discrete wiring for power is no longer necessary with the optional system power supply, power terminal block, and T-foot power bus coupler that mount on the DIN rail. These hot swappable modules are simply snapped on to the T-foot bus connector without removing any bus bars or bridging.
Pressure sensor

The ASCX Series Compatible pressure sensor is an alternative source to the ASCX Series pressure sensor discontinued by Honeywell. The sensor features pressure ports, mounting holes, and pin geometry that are mechanically compatible to the Honeywell sensor. The ASCX Series Compatible pressure sensor has a ratiometric output span of 4.5 volts at a 5-volt supply. Pressure ranges are available from 1 PSI to 100 PSI. The 4-pin out design is electrically compatible to the ASCX Series pressure sensor. Pressure characteristics including temperature effects of offset as well as output span are also comparable or exceed the ASCX Series pressure sensor.