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:
Mar. 23, 1982
Filed:
Oct. 25, 1979
Applicant:
Inventors:
Hisao Kinjo, Yokohama, JP;
Keiji Ozawa, Yokohama, JP;
Assignee:
Victor Company of Japan, Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; G11B / ;
U.S. Cl.
CPC ...
3581286 ; 369 43 ; 369275 ; 369276 ; 369126 ; 360 77 ; 360135 ;
Abstract
An information signal recording system records both an information signal and at least one kind of reference signal for providing a tracking control on a recording medium. The reference signal is recorded on an intermediate part of the recording medium. That part is located between the center lines of adjacent tracks on which the information signal is recorded.