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:
Dec. 22, 1987
Filed:
Sep. 16, 1985
Applicant:
Inventors:
Gene L Bischoff, Elba, NY (US);
James E Elly, Buffalo, NY (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360 66 ; 360 741 ;
Abstract
A video signal recorded on a magnetic disk is erased by applying a fixed frequency erasing signal as the disk is decelerating. By recording the erasing signal while slowing the disk, an effect is obtained that is comparable to scanning through a range of increasing frequencies. The high frequencies obtained, which are ordinarily beyond the frequency response of the erasing circuit, are effective in removing the resident video signal and in preparing the disk for a new recording.