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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

The United States of America – East Coast

 

 

In the late seventies I lived and worked in New York.  My job took me all around the United States and Canada.  So I like to go back occasionally; the last time being a couple of years ago with my soon to be wife Wendy.  She had never been to New York so I worked up an itinerary to show her the highlights in just a few days.  We also decided to drive to Washington DC and Boston. 

 

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Fiction, Recollections & News

Recollections of 1963

 

 

 

A Pivotal Year

 

1963 was a pivotal year for me.  It was the year I completed High School and matriculated to University;  the year Bob Dylan became big in my life; and Beatlemania began; the year JFK was assassinated. 

The year had started with a mystery the Bogle-Chandler deaths in Lane Cove National Park in Sydney that confounded Australia. Then came Buddhist immolations and a CIA supported coup and regime change in South Vietnam that was both the beginning and the begining of the end for the US effort there. 

Suddenly the Great Train Robbery in Britain was headline news there and in Australia. One of the ringleaders, Ronnie Biggs was subsequently found in Australia but stayed one step of the authorities for many years.

The 'Space Race' was well underway with the USSR still holding their lead by putting Cosmonaut, Valentina Tereshkova into orbit for almost three days and returning her safely. The US was riven with inter-racial hostility and rioting. But the first nuclear test ban treaties were signed and Vatican 2 made early progress, the reforming Pope John 23 unfortunately dying midyear.

Towards year's end, on the 22nd of November, came the Kennedy assassination, the same day the terminally ill Aldous Huxley elected to put an end to it.

But for sex and scandal that year the Profumo Affair was unrivalled.

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Opinions and Philosophy

Whither Peak Oil

 

 

The following paper was written back in 2007.  Since that time the Global Financial Crisis (GFC) struck and oil prices have not risen as projected.  But we are now hearing about peak oil again and there have been two programmes on radio and TV in the last fortnight floating the prospect of peak oil again. 

At the end of 2006 the documentary film A Crude Awakening warned that peak oil, ‘the point in time when the maximum rate of petroleum production is reached, after which the rate of production enters its terminal decline’, is at hand. 

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