Gas discharge laser control systems using multiple cpu's with shared memory on a common bus
CA 2194629 A1 · Owner: Cymer, Inc. · Inventors: Mixon, Curtiss Lynn; Nair, Ralph Kenneth, Ii
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A laser control system with multiple CPU's having shared memory on a common bus to provide high performance relatively lost-cost, laser control. In the system disclosed, a first CPU which handles most if not all, communication, to and from the laser control system and which may communicate with one or more additional CPU's through the shared memory so as to be capable of, providing the software and operating commands to one or more additional processors on the common bus. A second processor is provided to control the intensity and repetition rate of a gas laser responsive to the program and commands made available thereto through the shared memory by the first processor. In addition, the …
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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 8, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2019.
- 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.