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:
Jul. 17, 2001
Filed:
Feb. 10, 1999
Masato Sugiyama, Yokohama, JP;
Makoto Onozawa, Yokohama, JP;
Kazuhiro Kaizaki, Odawara, JP;
Mitsuo Nakajima, Yokohama, JP;
Yuzo Nishinaka, Chigasaki, JP;
Junji Motoshima, Fujisawa, JP;
Hitachi, LTD, Tokyo, JP;
Abstract
A display apparatus for a television or computer terminal having a cathode ray tube with a deflection coil. The display apparatus includes a signal processing circuit which compresses a display period in a horizontal scanning period of an input video signal and which expands a blanking interval of the horizontal scanning period of the video signal, the signal processing circuit providing an output of the video signal to the cathode ray tube, and a horizontal retrace interval expansion circuit which expands a horizontal retrace line interval of a horizontal deflection current for the deflection coil of the cathode ray tube in accordance with the blanking period expanded by the signal processing circuit. The cathode ray tube displays the input video signal in accordance with the output of the signal processing circuit and the output of the horizontal retrace interval expansion circuit.