Signal generator using digital memory
CA 1269751 C · Owner: Sasaki, Takayuki · Inventors: Sasaki, Takayuki; Arai, Masaaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention comprises a signal generator which uses digital memory for generating a digital signal which has a value which periodically varies with a memory having 2 addresses in each of which data for one period of the digital signal is stored and includes a circuit for multiplying a digital control input having a variable value by a predetermined coefficient and includes an integrator for integrating the control input multiplied by said coefficient at every predetermined clock signal so as to produce an address signal for said memory and said address signal varying step by step at a predetermined number of intervals corresponding to said digital control input.
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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 May 29, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 2007.
- 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.