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In 1993 I was the principal inventor of a text based learning and testing system using an options list or multiple choice questions wherein the actual answers to questions and/or their value were hidden (encrypted) in barcodes printed in a workbook or test paper.  Thus the scanning device could provide immediate feedback during learning and/or accumulated a test score as the student or candidate worked through the paper.  This allowed a student to be corrected and directed or their result to be known immediately a candidate completed a test; so that no special scanner or external/additional marking was required.

The system was used by a number of large organisations including Qantas, the Department of Defence, BHP and the University of Newcastle for testing up to 100 candidates at a time, before it became economically viable to give each candidate their own computer.  Barcodes were automatically generated by accompanying software I wrote that seamlessly merged them into the text of the authors' questionnaire or study booklets.  I also designed a custom 3of9 barcode font to facilitate this process.

Leon Dearden and I developed a barcode reader that decrypted and thus instantly scored the selected barcodes as they were chosen from a list, or multiple choice options, as scanned by a candidate/student.  Leon designed the prototype circuit for manufacture and programmed the firmware while I provided the program meta-instructions.  It was called SmartPen.  Each pen unit was networked back through a network controller to a single portable computer and printer.

The system was entirely catholic as to the actual test/work book being scored. The result was entirely determined by the work book or test and the student/candidates' responses.  It was theoretically possible that everyone in the room was simultaneously completing an entirely different test or lesson.

Test candidates were often given a printout of their result as they left the examination room.   In the case of abilities testing, that was designed by the University of Newcastle to test the aptitudes of candidates for apprenticeships, this printout provided a full abilities analysis against normalised results.

The invention reached the application stage to protect the IP and allow its public use but I decided not to proceed to a full patent as low cost computers were becoming available and a major investment was required to refine and further miniaturise the barcode reader for mass production and to redesign the networking solution.

I subsequently redesigned the reader software to work with any PC and any hand-held barcode scanner; making  the SmartPen device redundant.  But it is now very much a solution in search of a problem.

Follow this link to see the patent application and detailed description.


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Travel

Istanbul

 

 

Or coming down to earth...

 

When I was a boy, Turkey was mysterious and exotic place to me. They were not Christians there; they ate strange food; and wore strange clothes. There was something called a ‘bazaar’ where white women were kidnapped and sold into white slavery. Bob Hope and Bing Crosby, or was it Errol Flynn, got into all sorts of trouble there with blood thirsty men with curved swords. There was a song on the radio that reminded me over and over again that ‘It’s Istanbul not Constantinople Now’, sung by The Four Lads, possibly the first ‘boy band’.

 

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Fiction, Recollections & News

Announcing Leander

 

(Born Wednesday 14 May 2014 at 5:23 AM, 3.3 kg 53 cm)

 

Marvellous.  Emily, my eldest daughter, has given birth to my first natural Grandchild (I have three step-grandchildren).  She and Guido have named him Leander.  Mother and child are well.

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Opinions and Philosophy

Jihad

  

 

In my novella The Cloud I have given one of the characters an opinion about 'goodness' in which he dismisses 'original sin' as a cause of evil and suffering and proposes instead 'original goodness'.

Most sane people want to 'do good', in other words to follow that ethical system they were taught at their proverbial 'mother's knee' (all those family and extended influences that form our childhood world view).

That's the reason we now have jihadists raging, seemingly out of control, across areas of Syria and Iraq and threatening the entire Middle East with their version of 'goodness'. 

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