Electronic gain-control arrangement
CA 1203584 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Zogg, Urs A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
11, ABSTRACT:, A gain control arrangement comprises our current distribution circuits (1,2,3,4) each having two emittercoupled transistors. The bases of the first (1) and third (3) current distribution circuits are interconnected as well as the bases of the second (2) and fourth (4) current distribution circuits. A control voltage (ust) is applied between the bases of each current distribution circuit. The interconnected emitters of the first (1) and third (3) current distribution circuit are connected to the outputs of a first converter circuit (5) comprising two transistors (51,52) whose emitters are coupled together by means of a first impedance element (50). The circuit (5) converts an …
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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 April 22, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 22, 2003.
- 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.