What Are Signatures?
Signature For Evidence:
A signature authenticates writing by identifying the signer with the signed document. When the signer makes a mark in a distinctive manner, the writing becomes attributable to the signer.
Why Digital Signatures Are Needed?
Now in computer age where every thing is happening lightning fast the computer base information is utilized effectively then the paper counterpart.
Today it is not possible for us to reach every where in the world to sign a document.
We all know ....etc

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Abstract:

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guarantee robust performance in the mobile channel, with its multipath delay and frequency-selective fading effects. The system is based upon a dynamic single channel per carrier assignment of each stereo channel to many carriers. Inter symbol interference degradations caused by multipat ....etc

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Abstract
The electronic commerce with digital content over the open, unsecured network like the Internet provides opportunities as well as risks for content providers. So far, most content providers of media and entertainment content such as music, film, or print content have not been successful or profitable in charging consumers for their products. Nor have they been successful in creating the technology frameworks required to remunerate on the one-hand content owners and on the other hand protect against piracy. T ....etc

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Cellular Digital Packet Data

Abstract :

Cellular Digital Packet Data is a technique, which is applicable over cellular network for quick transfer of data. It is applicable in providing a quick transfer of data over cellular networks. It transmits the packets over the cellular network in a reliable manner. Packet networks break a stream of data in to independent blocks of data called the packets. CDPD is wirelesses IP network that overlay on the existing AMPS cellular infrastructure. The CDPD raw channel modulation user rate is 19.2 kbps. ....etc

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Digital Video Broadcasting

Abstract :

DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB project, an industry consortium with more than 270 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute (ETSI), European Committee for Electro technical Standardization (CENELEC) and European Broadcasting Union (EBU).
Digital Video Broadcasting (DVB) is a set of standards that define digital broadcasti ....etc

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DIGITAL WATERMARKNG


ABSTRACT



Today s world is digital world. Nowadays, in every field there is enormous
use of digital contents.Information handled on INTERNET and MULTIMEDIA
NETWORK SYSTEM is in digital form.The copying of digital content without
quality loss is not so difficult.Due to this,there are more chances of copying of
such digital information.So,there is great need of prohibiting such illegal
copyright of digital media.Digital watermarking(DWM) is th ....etc

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to get information about the topic digital watermarkingfull report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-digital-watermarking

http://seminarsprojects.net/Thread-implementation-of-digital-watermarking

http://seminarsprojects.net/Thread-digital-watermarking-algorithms-and-applications ....etc

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In today's commercial environment, establishing a framework for the authentication of computer-based information requires a familiarity with concepts and professional skills from both the legal and computer security fields. Combining these two disciplines is not an easy task. Concepts from the information security field often correspond only loosely to concepts from the legal field, even in situations where the terminology is similar. For example, from the information security point of view, digital signature means the result of applying to s ....etc

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DIGITAL SMELL
ABSTRACT
The technology has so far targeted mainly our sense of sight and sound. To further enhance the virtual reality experience and another flavor to it, technology is now targeting your nose and tongue.
The application area of virtual reality is vast- from normal entertainment to the Internet and e-commerce application. You will be able to smell product before buying them online.
California-based Digiscents Inc. has developed the iSmell personal scent synthesizer. This small device connects through your pc via serial port ....etc

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PRESENTED BY:
PRABHJOT SINGH



INTRODUCTION
Drawback of the cyber world is that it lacks realism

It is about time to make use of the nose in digital world.

Essentially there are 2 technologies for aroma generation.

1st Technology
Uses scent spectrum and digital file.

You can attach smells with your e-mails.

A cartridge that can create thousands of scents are used in the aroma generating devices.

Cartridges are required to be replaced regularly to maintain s ....etc

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