Analog-to-digital converter
CA 1289665 C · Owner: Fukushima, Noriyuki · Inventors: Fukushima, Noriyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An analog-to-digital converter for converting an analog input voltage signal to a digital output voltage signal of m upper bits and n lower bits which has a plurality of resistors connected in a series circuit to a voltage source for establishing respective reference voltages an upper bit, encoder having a first input receiving the analog input voltage and second inputs connected to the series circuit at respective intervals defining groups of the resister therebetween for generating the m upper bits and a switch control signal, each of the groups including a plurality of the resistors, a first lower bit encoder having a first input receiving the analog input voltage signal and second …
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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 September 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 24, 2008.
- 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.