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:
Jun. 29, 1993
Filed:
Jun. 27, 1991
Applicant:
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
360 65 ; 360 39 ;
Abstract
In a data recording apparatus, the data rate of an incoming information signal is used to select the frequency processing, such as band limiting or high frequency emphasizing, performed on the information signal to alter its frequency characteristic so that the information signal can be digitally recorded with magnetized patterns that are substantially similar even when recording at different recording speeds.