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. 05, 1991
Filed:
Sep. 13, 1988
Osamu Takase, Yokohama, JP;
Hikaru Masui, Yokohama, JP;
Shigeyuki Itoh, Katsuta, JP;
Yoshizumi Watatani, Fujisawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic recording and reproducing apparatus for eliminating the crosstalk component from an adjacent track of a tape of a VTR and obtaining a high picture quality. Chrominance signals in the base band which are produced by a low frequency conversion chroma signal are supplied to comb-shaped filters which are used in the magnetic recording and reproducing apparatus. The chrominance signals in the base band are obtained by generating carriers synchronized with a burst signal of the low frequency conversion chroma signal including the jitter component upon reproduction and by multiplying the carriers and the low frequency conversion chroma signal. A burst signal portion between the resultant chrominance signals in the base band is applied as a frequency control input signal to an oscillator as the carrier generating source, so that desired carriers are derived. Thus, the frequency fluctuation is eliminated from the converted chrominance signal in the base band and the high picture quality can be realized.