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. 20, 1979
Filed:
Jan. 28, 1977
Luigi C Gallo, Redwood City, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
Apparatus is disclosed for producing a full four field NTSC color code sequence of color video information in a manner whereby a continuous nonjittering color video image can be displayed by repeatedly reproducing a recorded two field sequence of color video information. The apparatus is useful in a recording machine which samples the information signal at an odd multiple of the subcarrier frequency and converts the samples to a number of digital data streams and also removes and reinserts horizontal synchronization digital words in the digital component data streams, wherein the horizontal synchronization words are synchronized with the subcarrier. A phase continuous clock signal is used to time the processing of the repetitively reproduced two field sequence of video information. Since the phase of the subcarrier alternates on the second reproducing of a two field sequence, for example, the synchronization word would be misplaced on the second reproduction and would cause a jittering of the video display in the absence of the apparatus of the present invention.