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:
Aug. 11, 1992
Filed:
Aug. 20, 1990
David Gillies, Strasbourg, FR;
Jean-Yves Moraillon, Molsheim, FR;
Laboratoire European de Researches Electronique Avancees, Courbevoie, FR;
Abstract
A device for conversion of frame frequency and number of lines for a high-definition television receiver which receives input video signals corresponding to different standards and to output a high-definition signal at a desired frame frequency and with the desired number of lines. The device uses a pass-band reduction decoder processing the high-definition input 625/2:1/50 Hz video signals. It includes: a memory, a decoder, and a processing circuit. The memory stores the input video signal frames at a frequency which is a function of the frame frequency of the input signal. This memory is read at the frame frequency desired at the output. The decoder is a pass-band reduction decoder connected to the memory and gives separately at its outputs even and odd frames, respectively, of a decompressed high-definition video signal output at the frame frequency desired. The video processing circuit is connected to the outputs of the pass-band reduction decoder and delivers a display video signal at the required frame frequency and number of lines.