Introduction

Cellular Digital Packet Data (CDPD) systems offer what is currently one of the most advanced means of wireless data transmission technology. Generally used as a tool for business, CDPD holds promises for improving law enforcement communications and operations. As technologies improve, CDPD may represent a major step toward making our nation a wireless information society. While CDPD technology is more complex than most of us care to understand, its potential benefits are obvious even to technological novices.

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Definition

In recent years, there has been a rapid increase in wireless network deployment and mobile device market penetration. With vigorous research that promises higher data rates, future wireless networks will likely become an integral part of the global communication infrastructure. Ultimately, wireless users will demand the same reliable service as today's wire-line telecommunications and data networks. However, there are some unique problems in cellular networks that challenge their service reliability.

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what is the functionung of the pen style cellular phone with a handwriting data input and personal ID key with cashless pass function explain pls??? ....etc

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sir,
I am requesting you to please send me complete details of cell phone jammer incorporated with cell phone detector in terms of documentation and circuit diagram to my mail id:[email protected] ....etc

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my precentation is on pen pc tech .thats y m looking for cellular phone function in communication pen ....etc

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sir,
I AM REQUESTING YOU TO PLEASE SEND ME THE CELLPHONE JAMMER INCORPORATED WITH CELLPHONE DETECTOR CIRCUIT DIAGRAM . I AM DOING THE PROJECT WORK ON THIS CONCEPT.I HAVE VERY VERY LESS TIME TO PREPARE. ....etc

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Cellular Phone Heads Up Display: One idea is to create a Heads-Up Display for use with cellular phones and other handheld devices. When a call comes in the display can show the caller’s name, and at other times information such as the time and weather conditions can be shown. MP3 players can also interface with the portable display to show the currently-played song. Devices in cars can interface with the display which could minimize driver inattentiveness by maximizing the time drivers spend looking at the road rather than the displays ....etc

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When police, fire or ambulance personnel receive an emergency call, they must pinpoint its place of origin in order to respond quickly. When such a call is made from a cellular phone, its place of origin can be determined by using GPS or a cell-based positioning method. However, these methods are sometimes inaccurate and have blind spots. We developed a system for determining location using RFID-reader- equipped cellular phones and RFID tags. We outline the prototype system here ....etc

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please do send me the ppt of the project(pendrive to pendrive data transfer without using pc)
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