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:
Feb. 27, 2001
Filed:
Sep. 20, 1999
Nobutaka Amada, Yokohama, JP;
Hiroo Okamoto, Yokohama, JP;
Hideo Nishijima, Hitachinaka, JP;
Hideo Zama, Hitachinaka, JP;
Kuniaki Hirayama, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic recording and/or reproducing apparatus having a plurality of recording/reproducing modes, such as a long-time recording/reproducing mode and a high rate recording/reproducing mode for digital signals, is intended to form an ideal recording pattern for any head configuration. The apparatus includes magnetic heads,and,having positive/negative azimuth angles and which are opposed to each other by 180°; magnetic heads,and,having positive azimuth angles and which are opposed to each other by 180°; and magnetic heads,and,having negative azimuth angles and which are opposed to each other by 180°; wherein recording/reproducing is performed by using the magnetic heads,and,in a standard recording/reproducing mode; by using the magnetic heads,and,in a high rate recording/reproducing mode; by using the magnetic heads,and,in a long-time recording/reproducing mode which is twice as long as the standard mode; and by using the magnetic heads,and,in a long-time recording/reproducing mode which is N times (N; integer being 3 or more) as long as the standard mode.