24-10-2016, 04:40 PM
1460923156-51210435pptfsmartquill130202052014phpapp01.pptx (Size: 2.48 MB / Downloads: 6)
INTRODUCTION
Smart quill was invented by Lyndsey Williams of Cambridge University along with British Telecommunications.
Smart quill is a pen, which remembers the words that writes and then transfer them into computer text.
Smart quill contains sensors that records movement by using by using earth’s gravity irrespective of the platform used
WORKING
Smart quill works by measuring the pen’s movements and matching them to the movements that produce the words and letters programmed into its memory.
User can enter information into these pens by simply pressing a button and accelerometers are used to sense the movements of the pen using earths gravity system
HANDWRITING RECOGNITION AND SIGNATURE VERIFICATION
There are two techniques used for this purpose
Accelerometer Technology
Handwriting recognition Software
ACCELEROMETER TECHNOLOGY
This technology uses a device called Accelerometer which is used for measuring motion
A tiny accelerometer in a pen could be used to detect the stops and starts, arcs and loops of handwriting, and transmit this information to a small microprocessor that would make sense of it as text.
ACCELEROMETER TECHNOLOGY
Two types of accelerometer
l)Two axes accelerometer:- measures acceleration in two axes. ex..ADXL202 accelerometer
2)Three axes accelerometer:-measures acceleration in three axes. ex..tronics +/-2g
HANDWRITING RECOGNITION SOFTWARE
This software embedded in the microprocessor of the pen is used to recognize handwriting of the user.
Two phases in handwriting recognition Handwriting transcription Handwriting recognition
HANDWRITING TRANSCRIPTION
In this phase, the recorded acceleration signals are then transcripted to it’s original form.
Method
Firstly, we have to know pen’s spatial orientation.
Secondly, we have to succeed in the double integration.
HANDWRITING RECOGNITION
In £his phase £he charac£ers and signa£vres are recogni£ed. me£hod
We vse a simple Evclidian dis£ance as £he comparison process, and of covrse £he decision process is £he smaller dis£ance fovnd
DISPLAY SCROLLS USING TILT SENSORS
By tilting the pen user can chose applications and scroll through without using scroll buttons
This is done by using Micro Electro-Mechanical Systems(MEMS) tilt sensors to measure tilt angle with earth
COMMUNICATION WITH OTHER DEVICES
The current prototype hooks up to the PC via a cable and electronic docking station called as “inkwell “
Future models can receive email and pager messages via a wireless messaging system.
MEMORY
It uses 4MB EEPROM .
Up to l0 pages of notes can be stored locally on the pen memory.
The data is stored in the pen locally until it is copied to the Personal Computer
POWER
Smart quill works on AAA(Antiaircraft Artillery Battery) battery. It can continuously work 25 hrs with a single AAA battery
The pen has automatic on/off system.
CONCLUSION
The es£ima£ed cos£ of £his fv£vris£ic pen is only $1oo.
Smar£Qvill is convenien£ for vse.
Deyboards become so £iny yov reqvire needle-liKe fingers
£o opera£e £hem and screens £ha£ need cons£an£ cvrsor con£rols £o read simple £ex£. The in£rodvc£ion of Smar£Qvill is £he bes£ solv£ion for £his