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:
Oct. 24, 2006
Filed:
Mar. 01, 2005
Hiroji Morimoto, Kashihara, JP;
Koji Nishiyama, Ibaraki, JP;
Katsuyo Iwasaki, Nishinomiya, JP;
Akira Satou, Ibaraki, JP;
Kenichiro Taniwa, Takatsuki, JP;
Hiroji Morimoto, Kashihara, JP;
Koji Nishiyama, Ibaraki, JP;
Katsuyo Iwasaki, Nishinomiya, JP;
Akira Satou, Ibaraki, JP;
Kenichiro Taniwa, Takatsuki, JP;
Matsushita Toshiba Picture Display Co., Ltd., Osaka, JP;
Abstract
A deflection coil for deflecting an electron beam emitted from an electron gun is provided outside a cathode-ray tube in which the electron gun is housed, and a phosphor screen is formed. The cathode-ray tube further includes a velocity modulation coil for modulating a horizontal scanning velocity of an electron beam, a first magnetic substance surrounding an outer circumference of the cathode-ray tube from outside the velocity modulation coil, and a second magnetic substance surrounding the outer circumference of the cathode-ray tube between the deflection coil and the first magnetic substance. Because of this, the sensitivity of velocity modulation can be enhanced effectively with a simple configuration while deflection distortion is prevented.