Apparatus for determining a magnetic field
CA 1069585 A · Owner: Suzuki, Tomoaki · Inventors: Suzuki, Tomoaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetic field is determined with a Hall element having a high sensitivity. Such an element is very susceptible to a variation of environmental temperature and thus requires a compensation thereof for the determination of a magnetic field. Two electric signals indicative of the magnitudes of the Hall voltage and the temperature respectively, are, produced and fed into respective inputs of an analog calculator to thereby indicate the determined magnitude of magnetic field automatically. In one aspect of the invention the temperature signal may be obtained by detecting a control voltage across the control current terminals of the Hall element during passage of the control current …
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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.