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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

Brazil

 

 

In October 2011 our little group: Sonia, Craig, Wendy and Richard visited Brazil. We entered Brazil from Argentina near the Iguassu Falls.

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Fiction, Recollections & News

Lost Magic

 

 

I recently had another look at a short story I'd written a couple of years ago about a man who claimed to be a Time Lord.

I noticed a typo.  Before I knew it I had added a new section and a new character and given him an experience I actually had as a child. 

It happened one sports afternoon - primary school cricket on Thornleigh oval. 

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Opinions and Philosophy

The demise of books and newspapers

 

 

Most commentators expect that traditional print media will be replaced in the very near future by electronic devices similar to the Kindle, pads and phones.  Some believe, as a consequence, that the very utility of traditional books and media will change irrevocably as our ability to appreciate them changes.  At least one of them is profoundly unsettled by this prospect; that he argues is already under way. 

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