DESIGN AND CONSTRUCTION OF A MOBILE INCOMING CALL INDICATOR

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DESIGN AND CONSTRUCTION OF A MOBILE INCOMING CALL INDICATOR

ABSTRACT

This work is titled design and construction of a Mobile phone call indicator. Mobile phone call indicator is a device that flashes an LED when it detects an incoming call.
Mobile phone call indicator can be used to escape from the nuisance of mobile phone rings when you are at home. This circuit will give a visual indication if placed near a mobile phone even if the ringer is deactivated. This circuit was designed to detect when a call is incoming in a cellular phone (even when the calling tone of the device is switched-off) by means of a flashing LED. The device must be placed a few centimeters from the cellular phone, so its sensor coil L1 can detect the field emitted by the phone receiver during an incoming call.

Title Page———i

Certification——–ii

Dedication———iii

Acknowledgement——-iv

Abstract ———vi

Table of Content——–vii

 

Chapter One

1.0 Introduction ——-1

1.1 Statement of Problem——4

1.2 Purpose of the Study——5

1.3 Significance of Study——8

1.4 Limitation——–9

1.5 Scope of Study——-11

 

Chapter Two

2.0 Review of Related Literature —-12

2.6 Summary of Literature Review—- 19

 

Chapter Three

3.0 Research Methodology and Procedure—22

3.1 Population ——–22

3.2 Sample and Sampling Technique—-22

3.3 Validation of the Instrument —-23

3.4 Reliability of the Instrument —–23

3.5 Data Analysis——-23

Chapter Four

4.0 Presentation and Discussion of Result—24

4.1 Analysis and interpretaion of Data—25

4.2 Discussion of Results——38

 

Chapter Five

5.0. Summary, Conclusion, and Recommendation  –40

5.1 Summary——–40

5.2 Conclusion——–41

5.3 Recommendation——42

References ———45

Appendix 1——–47

Appendix ———50

DESIGN AND CONSTRUCTION OF A MOBILE INCOMING CALL INDICATOR

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