A distance learning system providing individual television participation, audio responses, and memory for every student
CA 2189136 C · Owner: Lg Electronics, Inc. · Inventors: Harper, Gregory W.; Freeman, Michael J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interactive distance learning system is disclosed which is characterized by individual attention to each student. A live lecture transmitted from a remote location (100) is accompanied by questions (480) to gage comprehension by students. The question and possible answers for student choice are graphically displayed on a video screen (186). Affirmative supportive commentary is prepared prior to the lecture and prerecorded for each of the possible correct and inccorect responses. Each response teaches confirms and encourages the, learning experience. A processor (178) branching codes and a memory device (282 286) can be used to create a large variety of responses to provide individual …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 14, 1995 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.