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:
Oct. 23, 1990
Filed:
Dec. 27, 1988
Masayoshi Watanabe, Tokyo, JP;
Seiichi Noda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In an encoder for use in encoding each input signal unit of N bits into each of error correcting codewords, each input signal unit is grouped into a plurality of parts which have bit lengths N1 and N2 in consideration of a transmission rate on a transmission path and which are individually encoded into partial encoded codewords which individually include redundancy signals, respectively. The partial encoded codewords may have different error correction ability and different code lengths. The partial encoded codewords are combined together into each of the error correcting codeword which may be transmitted to the transmission path at a transmission rate close to an allowable transmission rate of the transmission path. A decoder decodes each error correcting codeword into each of output signal units by dividing each error correcting codeword into divided codewords and by individually decoding the divided codewords.