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:
Jul. 21, 1987
Filed:
Dec. 02, 1985
Applicant:
Inventor:
Robert F Smith, Santa Clara County, CA (US);
Assignee:
Seagate Technology, Scotts Valley, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ; H03K / ;
U.S. Cl.
CPC ...
360 67 ; 307511 ; 324212 ; 328 55 ; 328207 ;
Abstract
A system for evaluating a recording system is disclosed, which includes a monostable multivibrator (MMV) for receiving the recovered data stream from the disc drive. The time constant of the MMV is controlled by a second, matched MMV which receives a fixed frequency input. By applying the output of this matched MMV to another input of the MMV receiving the recovered data, the time constant of the first multivibrator may be adjusted with the delay being a function of the period of the input frequency to the second multivibrator.