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. 18, 1980
Filed:
Sep. 18, 1978
Francis C Marino, Dix Hills, NY (US);
Redactron Corporation, Yaphank, NY (US);
Abstract
In a magnetic recording system utilizing a non-return-to-zero format the reproduced recording is fed to positive and negative threshold detectors having no need for electrical hysteresis as well as, via differentiator means, to a zero-crossing detector. The signal from the positive threshold detector and one polarity of the signal from the zero-crossing detector are used to trigger a latch means to a first state to emit a signal having a first level, and the signal from the negative threshold detector and the other polarity of the signal from the zero-crossing detector are used to trigger the latch means to a second state whereby the signal emitted by the latch means is switched to a second level.