Constant percentage clipping circuit
CA 1069595 A · Owner: Gte Automatic Electric Laboratories Incorporated · Inventors: Violet, Ronald J.; Tracey, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The input waveform is applied via an input resistor to the inverting input of an operational amplifier. The non-inverting input is grounded. In the preferred embodiment two feedback, networks, each comprising a diode and resistor network are con-, nected between the output and the inverting input of the amplifier. The diodes are oppositely poled. A capacitor is connected to ground at one end and to a charging resistor at the other. The other end of the charging resistor is connected to a junction formed by the resistor and diode in one of the feedback loops. The charging resistor is selected so that the value of the voltage for the reference which is supplied by the voltage across 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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.