CellPhone Protection Ppt Seminars

8/3/2019 CellPhone Protection Ppt Seminars

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CONTENTS

Introduction

Need for cell phone protection

Existing security measuresBiometric authentiction

Voice recognition

Cell phone architectureHeart of cell phone


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INTRODUCTION

Our paper proposes a new innovative,reliable, fool proof security measure forcell phones using VOICE

RECOGNITION

The voice of the user is processed(Speech Processing) using a digitalsignal processor which is the primepart of a cell phone


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NEED FOR PROTECTION

The threat for cell phones is alsoincreasing. Stealing a cell phone andselling them in black market has grown

into a profiting business.

There arises a need to adopt a foolproof security system to prevent theseunlawful activities, unauthorized usageand safeguard the user.


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EXISTING SECURITYMEASURES

> PASSWORD

A password should never be writtendown, never be given to another

person, and should be changed at leastevery three months.

Besides these, a sedative techniciancan break these passwords and PINnumbers


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VOICE RECOGNITION

Voice recognition is the identificationor verification of an individual identityusing speech as the identifying

characteristic.

To identify its auditory and vocalcharacteristics. An individual speech

spectrum is of the form as shown here.


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SPEECH AMPLITUDE SPECTRUM


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VOICEI/PSPEECH

DIGITIZATION

1011011 VOICE

CHARACTERISTICS

ANALYSIS

VOICE

CHARACTERISTICS

DATABASE

MATCH

PROCESS

MATCH

PROCESS NO

MATCH

YES

NOSEARCH /MATCHING

RESULTS


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CELL PHONE ARCHITECTURE

Kernel which is nothing but a microprocessor.

Vocoder is a DSP (digital signal processor).

Memory (SRAM, Flash RAM,ROM,&EEPROM)RF interface for transmitting and receiving of data.

Base band interface.

System clock (an oscillator producing frequency)SIM card interface.


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I/P SPECTRUM

VOCODER(DSP)

1011010 MOMORY(Flash memory)

CODING AND STORING OF SPEECH SPECTRUM


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FREQUENCY

TIME

GOOD MORNING AUDIO SPECTRUM


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AUTHORISED USER

UNAUTHORISED USER

TRANSMISSION

NO

TRANSMISSION


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Biometric trait Feature sensor Costs Comfort Accuracy

VOICE

IRIS

Ear form

HAND

GEOMETRY

Tone ortimbre Micro-phone Very low Very Easy High

Iris pattern camera Very high VeryDifficult

Very high

Dimension ofVisible ear

camera High Difficult High

High Highcamera EasyMeasurement

Of fingers

& palm

KEY board

strokes

Rhythm of

Keyboard

strokes

Key-board Very low Very lowEasy

COMPARATIVE ANALYSIS


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MERITS OF OUR PROPOSED SYSTEM

No external hardware.

No increase in cost of cell phone.

No difficulty for user (as he talks as usual).

Programming is easy.

Burglar proof.

Protection from unauthorized usage.

Can be used for all models of cell phones

CellPhone Protection Ppt Seminars

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