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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

Bolivia

 

 

In October 2011 our little group: Sonia, Craig, Wendy and Richard visited Bolivia. We left Puno in Peru by bus to Cococabana in Bolivia. After the usual border form-filling and stamps, and a guided visit to the church in which the ‘Black Madonna’ resides, we boarded a cruise boat, a large catamaran, to Sun Island on the Bolivian side of the lake.

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Fiction, Recollections & News

My Mother's Family

 

 

All my ancestors are now dead.  I'm an orphan. So for this history I've had to rely on my recollections a small pile of documents left by my mother. These include short biographies of several of her relatives. Following the female line; these recollections briefly span the two world wars; to the present.

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Opinions and Philosophy

Bertrand Russell

 

 

Bertrand Russell (Bertrand Arthur William Russell, 3rd Earl Russell, OM, FRS (18 May 1872 – 2 February 1970)) has been a major influence on my life.  I asked for and was given a copy of his collected Basic Writings of Bertrand Russell for my 21st birthday and although I never agreed entirely with every one of his opinions I have always respected them.

 

In 1950 Russell won the Nobel Prize in literature but remained a controversial figure.  He was responsible for the Russell–Einstein Manifesto in 1955. The signatories included Albert Einstein, just before his death, and ten other eminent intellectuals and scientists. They warned of the dangers of nuclear weapons and called on governments to find alternative ways of resolving conflict.   Russell went on to become the first president of the campaign for nuclear disarmament (CND) and subsequently organised opposition to the Vietnam War. He could be seen in 50's news-reels at the head of CND demonstrations with his long divorced second wife Dora, for which he was jailed again at the age of 89.   The logo originally designed for the CND, the phallic Mercedes, became widely used as a universal peace symbol in the 60s and 70s, particularly in hippie communes and crudely painted on VW camper-vans.

 

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