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. 30, 1982
Filed:
Oct. 05, 1979
Masanori Oguino, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed is a crosstalk attenuator system for reducing the crosstalk which occurs at the time of separating and reproducing the original signals from the video disc recording medium on which a video signal and a voice signal have been recorded as a compound signal on the same track. In the system, a first multiplier receives both the signals separated from the medium to analyze the relative relation between the signals and thus to generate an output signal according to the amount of the crosstalk between the signals; a second multiplier receives the output signal and one of the signals to generate a feedback signal equivalent to the other crosstalk signal component mixed in one signal, and the feedback signal is subtracted from the other signal component thereby to reduce the crosstalk.