Smart Pen

The Smart Pen

Prepared by- Ankit Reddy R.- Madan Ch.

Livescribe Pulse Pen1

OutlineIntroductionEndorsementsThe PlatformThe PenThe PaperThe Host ServerDevelopment ToolsWorkingAccelerometerHandwriting Recognition Software

Technology Added ValueAdvanced LexiconsExisting system integrationThe Text Editor and Form ViewerSecurityBarcode Scanning7 Utilities in EducationBenefitsDisadvantagesDemonstration and Live TestingConclusionReferences

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IntroductionSmart Pen (Digital Pen)A computer invention that transmits writing into digital text.Using MEMS sensors it records the movement of the writing.Digital pen technology was first developed by the Swedish inventor and manufactured by Christer FhrauesOne of the smart pen is LIVESCRIBE SMARTPEN, invented by Lyndsey Williams from Cambridge University along with British Telecommunications in 2008.3

Endorsements From Researchers I think this smart pen is going to revolutionize learning. It facilitate the Curriculum Based Measures like recording and tracking of childrens performances on quick assessments. In mathematics thats central to learning. It has tremendous potential to help students as they pursue their higher education certainly all forms of education.4

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The Platform Digital Pen

Dot Paper with Dot Positioning System (DPS)

Desktop and Host Server (pen cast)

Development Tools5

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Ink Cartridge and force sensorBattery

Encrypted data transmission 128/256 bit Bluetooth transceiver/USB

Processor

Infrared Camera

Memory :2Gb/50 A4 Pgs

The Pen: Inside Technical Data

IR camera Uses ink Functions just like a normal pen Contains a digital camera Takes pictures of pen strokes only Inbuilt MIC and Speaker Bluetooth or USB OLED display Headset Jack6

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Anoto Function: Small dots printed on ordinary paperVisually a slight grey dots on the paper which are invisible to human eye.The pixels have an addressing system from Anoto authorized printerNon complex printing process Laser/Litho/DigitalThe Paper

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Our Form

Anoto Dot Pattern

Printed FormForm Printing and Completion+=8

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Host Server

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Digital pens write like a ballpoint and record what you write as you write it by using Java SDK v1.0.

Digital pens can typically store up to 1,2, or 4 Gigabytes of text/audio.

The digital pen has a rechargeable battery and standby unto 14Hours.Development Tools10

Development Tools(cont.)Send forms in an instant via mobile phone or PC.Digital capture forms with pattern can be printed on demand using compatible desktop printers.

The digital pen and paper solutions implement the security levels demanded by organizations. 11

Working of Smart Pen When using a digital pen, a tiny IR camera in the pen. It registers the pen's movement across the grid surface on the paper and stores it as series of map coordinates. These coordinates correspond to the exact location of the page youre writing on.How does it register the coordinates?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 system12

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Working of Smart PenThere are two techniques used for register the coordinatesAccelerometer TechnologyHandwriting recognition Software

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Accelerometer TechnologyThis technology uses a device called Accelerometer which is used for measuring acceleration due to gravity.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.14

Accelerometer Technology Two types of accelerometerThree axes accelerometer(or)(laser accelerometer)2) Piezoelectric accelerometer`15

Laser AccelerometerA laser accelerometer comprises a frame having three orthogonal input axes and multiple proof masses.Each proof mass having a predetermined blanking surface.A flexible beam supports each proof mass.A control responds to the light intensity to restore the proof mass to a central position and provides an output signal proportional to the restoring force.16

Piezoelectric Accelerometer

It employs the piezoelectric effect of certain materials to measure dynamic changes in mechanical variables.e.g., acceleration, vibration, and mechanical shock.The acceleration can be converted into an electrical signal it must first be converted into either a force or displacement.17

Application uses Vision Objects Handwriting Recognition Software which is the world leader in this field. 26 language handwriting packs are currently available. The text written by hand is converted into digital characters or digital text.Two phases in handwriting recognition Handwriting transcriptionHandwriting recognitionHand Writing Character Recognition (HCR)18

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Handwriting TranscriptionIn this phase, the recorded acceleration signals are then transcripted to it's original form of handwriting.

MethodFirstly, we have to know pen's spatial orientation.Secondly, we have to succeed in the double integration19

Handwriting Recognition In this phase the characters and signatures are recognized.

MethodWe use a simple Euclidian distance as the comparison process, and of course the decision the process is the smaller distance founded by the application sensor20

Monogram 1-word could be fire or fiveBigram 2-word group could be on fire or on fiveTrigram 3-word group could be on fire but never on five The Text resource uses a trigram model.Hand Writing to Digital Text Conversion

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Technology Added Value

Data streaming email, sms, xml, spreadsheet Hand Writing Recognition Software (HWR) Advanced Lexicons Existing System integration Form Editor/Viewer Security Scanning barcodes Data Mining and Business Intelligence22

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Advanced Lexicons A lexicon is the vocabulary of a person, things, language, or branch of knowledge Accuracy improved by using lexicons Person names Place names Street names23

Existing System integration By saving information in the local/global systems like employee names, data or ID numbers. Automatic Data verification Fieldworker Names ID Numbers24

Form Viewer / Editor Screen

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Form Viewer / Editor Screen

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Security

High security 128/256 bit encryption. Each digital pen has a unique ID. Secure web gateway. No more missing paperwork - instant transactions. Immediate proof of delivery / acceptance. Signature verification.Regular Backup - ensures reporting and compliance where necessary.Clear audit trail - time stamped log of pen user, time started, finished and signed.No time wasted and impossible for any fraudulent activities to take place.

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The pen must be held in a specific angle when scanning a barcode The barcode must be scanned with normal hand movement avoiding extremely high or low speeds

Barcode Scanning28

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7UTILITIES OF SMARTPENWritingRecording SpeakingListen speedArticulation/pronunciationData storingDictionary/Vocabulary

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BenefitsIt is portable and light weight.Increased security for the student & the user.High speed, resilient solution - Reduced processing timeDigital secure data, text and images sending.Cost cutting in costs related to paper based processes Leave a copy behind. Source Paper trail is always available for validating the electronic information Secure data transfer Much Smarter than any typing application30

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DisadvantagesIt works only on Dot Paper.The cost is high.Misuse of Smart penLow Storage capacity.It has Accelerometer errorsErrors are occurs in the system due to thermal variations in the spring

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Demonstration and Live Testing

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ConclusionHence we can conclude that the smart pen has many advantages over normal pen, since the smart pen is a device that can store visual recordings and thus can be used widely.

Eventually blind students (people with partial blindness) find it difficult to take notes at the fast pace that is being dictated. So smart pen can play a great role to help blind students.33

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Recap Process

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SoYou Will Save:

TIMEMONEY&35

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ReferencesMayer, E. R. (2009). The Cambridge Handbook of Multimedia Learning. Cambridge Press University.Norman, D. (2004). Emotional Design. A Member of the Perseus Books Group, New York.Norman, D. (2002). The Design of Everyday Things. A Member of the Perseus Books Group, New York. University of Rochester Learning Assistance Services (June2009) adopted fromwww.livescribe.comwww.anoto.orgwww.edulivescribe.comhttp://www.nytimes.com/2010/08/19http://www.nytimes.com/2008/04/22http://www.nytimes.com/2007/05/29http://www.livescribe.comhttp://www.fordham.onearmedman.com/wiki

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Any Queries?37

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