Transistor amplifier
CA 1046596 A · Owner: Sony Corporation · Inventors: Yoshida, Tadao; Kamimura, Kazuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transistor amplifier comprised of a transistor supplied with a first operating voltage and a field effect transistor having triode-type dynamic characteristics and supplied with a second operating voltage. The gate electrode of the field effect transistor is coupled to the transistor collector. In order to stabilize the field effect transistor bias current in the event of fluctuations in the second operating voltage, a voltage control circuit is responsive to such fluctuations to alter the first operating voltage so as to vary the gate voltage applied to the field effect transistor in a direction to stabilize the bias current. -i-
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 January 16, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 16, 1996.
- 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.