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:
Oct. 11, 1994
Filed:
Mar. 10, 1993
Akira Nakamura, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A magnetic record readout circuit and a magnetic recording apparatus. A transistor is located at the output side of a comparator for level slice. If the level slice comparator does not output high for the predetermined time or longer, the transistor remains on. A capacitor is placed between the collector of the transistor and ground. When the transistor is off, the capacitor is charged with a current source connected to the transistor collector. When the capacitor is charged, the level slice comparator outputs high. In response to the level slice comparator which outputs high, one of full-wave rectifying circuits located at the input side of the level slice comparator forces a capacitor for peak hold of a full-wave-rectified waveform to be discharged. As the capacitor is discharged, a given slice level lowers.