Optical matrix switch
CA 1308945 C · Owner: Suzuki, Syuji · Inventors: Suzuki, Syuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical matrix switch comprises 1 x M/2 optical switch means of N in number, optical switch groups of M/2 in number, and N/2 x 1 optical switch means of 11 in number, where N is a number of inputs and M is a number of outputs. Each of the 1 x M/2 optical switch means includes a predetermined number of optical switch elements each having a function to switch an optical signal between inputs and outputs in accordance with an applied electric field and has one, input and outputs of M/2 in number. The predetermined number is decided dependent on an equation of log2 M/2. Each of the optical switch groups includes optical switch elements of M/2 in number arranged transversely and each of 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 October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 2009.
- 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.