The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1994
Filed:
Sep. 01, 1992
Malcom Dye, Southampton, GB;
Terence K Gibbs, Portsmouth, GB;
Ian D Mercer, Southampton, GB;
Graham Luck, Chichester, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A nonlinear inductor for a CRT line timebase circuit comprises a bobbin carrying an inductive coil 41 and a first permanent magnet adjacent the coil. A second permanent magnet is positioned and oriented relative to the first magnet in such a manner that the magnetic field generated by the nonlinear inductor is substantially reduced. Because the second magnet is integral, the nonlinear inductor occupies the same printed circuit board area as a conventional nonlinear inductor. Furthermore, because the second magnet is oriented to substantially cancel the magnetic field, no additional magnets are required for deflecting the magnet field away from the CRT.