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:
May. 08, 1990
Filed:
Sep. 15, 1988
Hiroyuki Kitamura, Hiratsuka, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
An analog color video signal is sampled at a frequency which equals a multiple of a frequency of a chrominance subcarrier. The sampled signal is converted into a corresponding first digital signal. The first digital signal is converted into a second digital signal by changing a data arrangement. The second digital signal is processed into a coded signal through a predictive coding process. During the predictive coding process, first data of the second signal are predicted on the basis of second data of the second signal. The first data correspond to a picture element in a first scanning line. The second data correspond to a picture element in a second scanning line adjacent to the first scanning line. The second data picture element is selected from picture elements in the second scanning line at which phases of the chrominance subcarrier are equal to a phase of the chrominance subcarrier at the first data picture element. The selected picture element is spatially closest to the first data picture element. The predicted first data are used in the predictive coding process.