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:
Jan. 10, 1995
Filed:
Mar. 23, 1993
Mamoru Ueda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
An information data recording apparatus includes a DCT (discrete cosine transform) circuit (3) for processing a video signal in a DCT fashion, a quantizer (4) for quantizing an output signal of the DCT circuit (3), outer code circuits (5) and (10) for adding an error correction code to quantized data from the quantizer (4), and a recording head (13) for recording output data on a magnetic tape (14), whereby a high frequency component of data or outer code is recorded on first and last tracks of tracks of one field. Of the tracks constructing one field, a high frequency component of data or outer code that is less affected by a reproducing error is recorded on respective end tracks that have the large possibility that original recorded data will be broken by a mis-tracking upon editing. Therefore, even when an edit point is displaced by the mis-tracking upon editing so that the original recorded data is broken to cause an error to occur, an amount that a picture quality of a reproduced picture is deteriorated when the error occurs can be reduced considerably.