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:
Feb. 23, 1988
Filed:
Apr. 17, 1986
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The mirror image generator for composite signals with chroma inversion includes a first step of orthogonally modulating first and second color difference signals by first and second subcarriers where the subcarriers have 0.degree. and 270.degree. phases with respect to a 90.degree. reference phase; a second step of digitalizing the orthogonal modulation signals; a third step of writing the digitalized orthogonal modulation signals into 2 one horizontal period memories in a predetermined address sequence; and a fourth step of processing a phase transition order of the orthogonal modulation signals resulting in a different phase transition order in which the orthogonal modulation signals are read out of the horizontal period memory such that for a first predetermined amount of data, both the write address sequence and the read address sequence are the same with respect to each other, and for a second predetermined amount of data, the read address sequence is in reverse order from the write address sequence, and for a third predetermined amount of data, both the write and read address sequences are the same with respect to each other.