Detecting improper operation of a digital data processing apparatus
CA 1203631 A · Owner: Tektronix, Inc. · Inventors: Judge, John L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improper operation of a digital data processing apparatus is detected by applying a predetermined pattern of test digits to a data input of the apparatus and determining whether the pattern of digits provided at the data output of the apparatus in response to the application of the predetermined pattern of test digits to the data input is the same as the pattern that would be provided at the data output if the apparatus were operating properly.
Read the whole patent
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 April 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 2003.
- 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.