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. 01, 1998
Filed:
Oct. 17, 1994
Ikuo Ohkuma, Nagaokakyo, JP;
Sadayuki Inoue, Nagaokakyo, JP;
Tohru Inoue, Nagaokakyo, JP;
Yoshinori Asamura, Nagaokakyo, JP;
Kimitoshi Hongo, Nagaokakyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A video signal recording and reproducing apparatus for recording a video signal whose information amount is compressed using a high-efficiency encoding employing an orthogonal transform, wherein encoded data obtained by encoding only low-frequency coefficients are recorded separately from normal encoded data. When the amount of information after compression falls short of a presdetermined amount available for recording, the encoded data of low-frequency coefficients are added to fill the vacancy. For the low-frequency coefficients, check words are appended that which provide a greater minimum distance compared with other coefficients. The low-frequency coefficients are doubly encoded for error-correction.