Electric lamp and discharge devices: systems – Cathode ray tube circuits – Cathode-ray deflections circuits
Patent
1984-08-20
1986-12-30
Blum, Theodore M.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Cathode-ray deflections circuits
315393, H01J 2958
Patent
active
046331441
ABSTRACT:
A dynamic signal shaper for a cathode ray tube display system is described. In some cathode ray tubes an electromagnetic lens is driven by a correction signal derived from the beam deflection signals. The required correction signal is proportional to the product of the squares of the horizontal and vertical deflection signals. The described signal shaper incorporates means for making the constant of proportionality independently adjustable for beam deflections in each corner of cathode ray tube screen.
REFERENCES:
patent: 3961223 (1976-06-01), Ray et al.
patent: 4249112 (1981-02-01), McKibben
Blum Theodore M.
Dellett John P.
Hulse Robert S.
Issing Gregory C.
Smith-Hill John
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