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:
Aug. 11, 1987
Filed:
Feb. 11, 1985
Ichitaro Sato, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An apparatus for reproducing from a magnetic tape first and second video signals which are frequency modulated on a carrier, the first video signal having the center frequency of the carrier lower than that of the second video signal is disclosed, which includes a demodulator for demodulating the first and second video signals, a first low-pass filter coupled to the demodulator for filtering the first and second video signals demodulated by the demodulator, the first low-pass filter having a first cut-off frequency, a second low-pass filter coupled to the demodulator for filtering the first and second video signals demodulated by the demodulator, the second low-pass filter having a second cut-off frequency which is lower than the first cut-off frequency, a detector connected prior to the demodulator for detecting whether a reproduced video signal is the first or second video signal and for generating a control signal in response thereto and a switching circuit for selectively supplying the output signal of the first and second low-pass filters to an output terminal in accordance with the control signal from the detector.