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:
Apr. 05, 1988
Filed:
Aug. 13, 1985
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
An information signal recording medium reproducing apparatus comprises an equalizer supplied with a frequency modulated composite video signal picked up from an information signal recording medium, a frequency demodulator for frequency-demodulating an output signal of the equalizer into a composite video signal, a synchronizing signal separating circuit for separating a horizontal synchronizing signal from the composite video signal, and a switching signal generating circuit for forming a switching signal from the horizontal synchronizing signal. The equalizer is supplied with the switching signal and has such a circuit construction that a frequency at which an output level versus frequency characteristic of the equalizer has a peak is reduced responsive to the switching signal during a predetermined time period in a vicinity of the front edge of the horizontal synchronizing signal to correct a distorted waveform of the frequency modulated composite signal caused by defects in the information signal recording medium.