Switching network for megahertz frequency signals
CA 1185687 A · Owner: Licentia Patent-Verwaltungs-Gmbh · Inventors: Burkhart, Johann; Schluter, Klaus; Rall, Bernhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a switching network in matrix form for megahertz frequency signals, including: a multilayer printed circuit board having a plurality of row signal lines located in a first plane, a plurality of column signal lines located in a second plane and extending transverse to the row lines the row and column signal lines intersecting one another in a intersection area, control and/or shielding conductors surrounding the lines, and metal shields enclosing the planes; a crosspoint array module integrated on a chip and providing a plurality of crosspoints for the intersection area, each crosspoint presenting two semiconductor switches arranged to couple a respective column signal line to a …
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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 April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2002.
- 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.