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. 19, 1990
Filed:
Apr. 12, 1988
Kenji Nakano, Kanagawa, JP;
Kazuyuki Ogawa, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In an apparatus for recording and/or reproducing an information signal in successive slant tracks on a record tape; an information signal is recorded by a rotary head in only a part of a respective slant track scanned by the head on the tape, coded index data formed of a plurality of blocks is generated to identify a respective recorded information signal, such as, by an absolute tape-position address counted from an end or other reference position on the record tape, a '0' index signal is provided with a predetermined number of bits representing consecutive '0' values which can be detected for identifying the beginning of an event or program defined by the information signals recorded in a number of the slant tracks, and the '0' index signal and at least one block of the coded index data are supplied to the rotary head for recording by the latter in an index area of a slant track where no information signal is recorded.