Amplifier circuit for high frequency signals, particularly for cable distribution systems, comprising at least a first transistor controlled at its base electrode by a signal source, and a difference amplifier
CA 1078468 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Blom, Dirk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An amplifier circuit for high frequency signals particularly for cable distribution systems comprising, at least a first transistor controlled at its base electrode by a signal source, and a difference amplifier in which the distortion produced across the base-emitter junction of the said transistor is eliminated in a simple manner by means of feerforward control. -12-
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 May 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 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.