Deflection yoke
US5469122A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1993 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Dec 27, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0023
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A deflection yoke has an induction coil wrapped about its ferrite core at an angle of from 0 to 70 degrees from the horizontal axis of the deflection yoke to supply current to a leakage magnetic-field canceling coil also mounted to the deflection yoke for attenuating a leakage magnetic field produced from the front, rear and side of a cathode ray tube within the deflection yoke without using a separate circular core. This improves the operation and simplifies the production of the deflection yoke as compared to deflection yokes having the leakage magnetic-field canceling coil serially connected to the horizontal deflection coil or using a separate circular core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.