Transducer circuit
CA 2108168 A1 · Owner: Telefunken Fernseh Und Rundfunk Gmbh · Inventors: Kollner, Hartmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
57) Abstract, In a transducer circuit consisting of a first transistor (T11) to, the base of which ran be applied an input signal a second transistor (T12) complementary lo the first (T11) the base of which is connect-, ed to the emitter of the first transistor (T11) and the emitter of which is connected to an output terminal (8) via a first resistor (R1) and, with a current supply circuit (T13 T14) which controls the flow of, current through the emitter-collector paths of the two transistors (T11, T12) it is possible to obtain an output resistance or virtually zero through a second resistor (R2) connected to the emitter of the first transistor (T11) which is connected by the …
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
- Filed April 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2014.
- 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.