Cell switch and cell switch network with simplified cell switch testing
CA 2058796 C · Owner: Kabushiki Kaisha Toshiba · Inventors: Kamagata, Eiji; Shobatake, Yasuro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cell switch and a cell switch network with a simplified cell switch testing such that the testing processes can be carried out quickly and easily. The cell switch includes a dummy cell generation circuit for generating dummy cells in correspondence to the output transmission paths; and an output control circuit for selectively outputting the dummy cells to the output transmission paths when a test of the cell switch is indicated by an externally provided control signal. In a cell switch network In which the cell witches are interconnected in a form of a multi-step configuration the cell, switches belonging to each step in the multi-step configuration of the cell switch network is tested …
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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 January 6, 1992 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 6, 2014.
- 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.