Latest Invention: Acoustic Ear-scanning Technology to Help Avoid Theft



Researchers managed to come up with a technology that could protect portable devices such as iPod and mobile phones from theft.
Their latest invention uses the acoustic fingerprint of the ear, which makes it impossible for other people to operate the device. Such technology could be also used to improve the safety features of bank accounts and passports.
Scientists found that it is possible to identify a person by the distinctive sounds ..............etc

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detailed working of a DIGITAL NOCTURNAL NUISANCE using logic gates..............etc

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A/D and D/A Conversion,analog to digital and digital to analog


Data Converter impacts the factor for the performance of the overall radio design
Requirements: very high sampling rates, high number of effective quantization bits, an operating bandwidth of several Ghz, a large spurious-free dynamic range, a reasonable price
DAC and ADC converters
Sampling and Quantization
Nyquist Zones
Aliasing
Bandpass filtering – uses image to translate bandpass signals to baseband
Errors occurs in Quantization
..............etc

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i want seminar topic which is recently invented .plz send all seminar topic at [email protected]

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My name Ȋ̝̊̅ƨ̣̣̣̇̇̇ stephanie, a final year student of computer science and A̶̲̥̅♏ having problems with my project topic. Can anyone be of help..............etc

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hi....we want the project abstract of lcd based digital alarm clock with digital thermometer using 8051/89c51......................etc

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Abstract:

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference - free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz..............etc

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Abstract
LEO is Low Earth Orbit satellite.It circulates on a lower orbit in a shorter period . Additionally LEO systems try to ensure a high elevation for every spot of the earth to provide a highquality communication page link . The networks will play an important role in the evolving information infrastructure . It provides communication with shorter endto- end delays and e_ciency frequency usages . Some problems need to be solved before LEO satellite system can be successfully deployed . One of these problems is handover management . Even ..............etc

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SEMINAR TOPIC ON WIRELESS DIGITAL JWELLARY



ABSTRACT

Enormous number of people die due to lack of medical aid at the appropriate time as in the case of road accident in the remote areas , sudden imbalances in a person living alone in his house or heart attacks in the nights. In such cases , the whole accident may go unnoticed and by the time it is discovered, it may have been too late. We suggest a model that uses WIRELESS TECHNOLOGY with the existing cel..............etc

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Digital-to-Analog Analog-to-Digital
Data Handling Systems
Both data about the physical world and control signals sent to interact with the physical world are typically analog or continuously varying quantities.
In order to use the power of digital electronics, one must convert from analog to digital form on the experimental measurement end and convert from digital to analog form on the control or output end of a laboratory system.
Digital-to-Analog Conversion
When data is in binary form, the 0's and 1's may be of s..............etc

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