Trigger signal generating circuit
CA 2092845 C · Owner: Nec Corporation · Inventors: Matsukawa, Takanari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A trigger signal generating circuit comprises a counter for counting up input clock pulses and outputting a trigger signal when the counter counts up to a predetermined number of clock pulses a CPU for outputting a mask, request of a first trigger signal a first flip-flop for storing the mask request of the CPU, a second flip-flop for latching a normal output signal of the first flip-flop by the trigger signal of the counter, and an AND circuit for calculating a logical sum of a mask request signal output from the second flip-flop and the trigger output from the counter so as to mask the first trigger signal output from the counter or so as not to output a superfluous trigger signal when a …
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
- Filed March 29, 1993 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2015.
- 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.