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:
Mar. 12, 1991
Filed:
Dec. 19, 1988
Hitoshi Senso, Tokyo, JP;
Hisashi Takaki, Tokyo, JP;
Pioneer Electric Corporation, Tokyo, JP;
Abstract
A television (TV) signal receiving apparatus displays a TV signal of a high definition system using a TV receiver of an NTSC system with the high picture quality of the high definition system. An A/D converter converts an analog TV signal of a high definition system to a digital signal. A memory stores the digital signal and a vertical filter converts a number of horizontal scanning lines of the TV signal of the high definition system into a number of horizontal scanning lines of a TV signal of an NTSC system. The ratio of horizontal scanning lines of the high definition TV signal to horizontal scanning lines of the NTSC TV signal is 5 to 7. The horizontal scanning lines are divided into three portions in the vertical direction and four portions in the scanning direction and are supplied to twelve CRTs (monitors). The CRTs are arranged in three rows and four columns to form a picture plane.