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:
May. 25, 1993
Filed:
Oct. 27, 1989
Yasuyuki Yamada, Yokohama, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A magnetic recording reproducer having a system controller for detecting a level obtained by integrating and averaging a television signal reproduced by using a head thereof within a predetermined integrating time interval when reproducing the television signal recorded on a magnetic tape. Detecting a tracking position of the head is done by changing a relative positional between the head and the magnetic tape by driving a servo circuit. The reproducer includes a rectifier for rectifying the reproduced signal and converting the reproduced signal into a signal indicating a DC level, a voltage controlled current source for varying an output current in response to an output voltage of the rectifier, a capacitor charged by the output current of the voltage controlled current source, a level detecting circuit for detecting a charged voltage of the capacitor and a reset signal generating circuit for discharging and controlling the capacitor in synchronization with integrating time interval.