Printed circuit board function testing system and method of using said system
CA 1250957 A · Owner: Graphtec Kabushikikaisha · Inventors: Chiba, Takamasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A printed circuit board function testing system has a central processing unit CPU, which is connected to a CRT a printer and a floppy drive. The CPU is also connected to a coordinate detecting means which detects and memorizes the X-Y coordinate points and address numbers of the test points in a PC board. The CPU is also connected with a waveform detecting means picks up analogue signal at the test point by means of a probe which is driven by coordinate commanding instructions to track along the test points contacting each test point. The waveform obtaining means is connected to a waveform converting and memorizing means which processes the signals to form into a base data and a subject …
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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 March 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 7, 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.