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:
Nov. 19, 1985
Filed:
Nov. 01, 1982
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is a color video signal recording apparatus wherein the chrominance signal and the luminance signal are separated from the composite color video signal, the luminance signal is transformed into a frequency modulation signal and the chrominance signal is converted to have a lower frequency so that both reformed signals are recorded on a frequency multiplex basis on a recording medium. In processing a TV signal of CCIR system, the chrominance signal is controlled to have a frequency of 3/8 N.multidot.f.sub.H (where N is an odd number) and have its phase shifted by 90.degree. in every horizontal scanning period; in processing a TV signal of NTSC system, the chrominance signal is controlled to have a frequency of 3/8 N.multidot.f.sub.H (where N is an integer) and have its phase shifted by 90.degree. or 180.degree. in every horizontal scanning period, while the control being made such that 1/4 N is an integer in case of 90.degree. phase shift of (3N-2)/4 is an integer in case of 180.degree. phase shift.