Shottky bipolar two-port ram cell
CA 1092239 A · Owner: Fairchild Camera And Instrument Corporation · Inventors: Robinson, Barry J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High ECL switching speeds and a very low standby power are achieved by the 34 square mil dual-port RAM cell in which two Schottky NPN transistors in a bistable flip-flop circuit are flanked by an additional pair of transistors coupled between the flip-flop collectors and the two digit lines of the RAM. The bases of the flanking transistors are coupled to the A and B word lines so that a high signal on either or both of these word lines will enable the flanking transistors to sense the condition of the flip-flop.
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 December 23, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 23, 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.