Measurement system control using real-time clocks and data buffers
CA 2002344 C · Owner: Eidson, John C. · Inventors: Eidson, John C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for regulating a measurement system. The apparatus includes a coordinator that transmits instruction signals based upon a program stored in a memory to an instrument through a communication bus. The instrument is also coupled to a device under test. A real-time synchronized clock and a data buffer are placed on each instrument that performs a measurement, provides a stimulus controls a device, manages data, or performs a test. Signals passing between the device under test and the instrument are processed by function circuitry. After the measurement is made and a parameter or an output signal from the device under test is collected by the instrument, the real-time …
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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 November 6, 1989 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2011.
- 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.