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:
Apr. 16, 1991
Filed:
Mar. 16, 1988
Victor Company of Japan, Ltd., Kanagawa, JP;
Abstract
A rotary head type digital signal reproducing apparatus controls tracking of rotary magnetic heads based on tracking reference signals obtained in an end portion of a first scan and in a beginning portion of a second scan immediately after the first scan, out of successive first through fourth scans made by the rotary magnetic heads with respect to two mutually adjacent tracks on the magnetic tape, when playing the magnetic tape which has been recorded in a half-speed mode. In the half-speed mode, a rotational speed of the rotary magnetic heads and a tape transport speed of the magnetic tape are set to speed which are one-half those in a standard mode. But when playing on the reproducing apparatus the magnetic tape which has been recorded in the half-speed mode, only the tape transport speed is set identical to that in the half-speed mode, and the rotational speed of the rotary magnetic heads is set identical to that in the standard mode.