Filter for digital-to-analog converter
CA 1100198 A · Owner: Tektronix, Inc. · Inventors: Rieger, Michael L.; Singer, Martin D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The present invention relates to a non-linear filter for attenuating spurious electronic signals. The filter is comprised of a receiver for receiving the signal to be attenuated and a first amplifier coupled to the receiver for amplifying the signals to be attenuated. The amplifier is provided with a unit for providing the amplified signals as double-ended signals. A second amplifier is coupled to the first amplifier to receive the double-ended signals for providing a single-ended output signal. The second amplifier includes a constant current source for providing a constant current. A storage unit is coupled to the second amplifier and to receive at least a …
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 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
- 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.