Mass data recorder with dual memory system
CA 1260139 A · Owner: Westinghouse Electric Corporation · Inventors: Shepherd, Dennis A.; January, Garry L.; Maxwell, Albert H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mass data acquisition system utilizes a recorder that is provided with both CMOS RAM and a removable memory cartridge. The memory cartridge can be used to transport data from the recorder to a translator. Furthermore, the CMOS RAM is used to store the data record formulated during an entire recording period. When operated in the RAM mode, all data is stored in the CMOS RAM and the data cartridge is used only for purposes of transporting data to the translator. When operated in the cartridge mode, all formulated data is stored in both the CMOS RAM and the cartridge. This cartridge mode of operation provides redundancy and serves as a backup dual memory system to prevent loss of data in 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
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- 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.