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. 18, 1995
Filed:
Feb. 11, 1993
Masaaki Kawai, Kawasaki, JP;
Masayoshi Sekido, Kawasaki, JP;
Yuji Takizawa, Kawasaki, JP;
Hidetoshi Naito, Kawasaki, JP;
Satomi Ikeda, Kawasaki, JP;
Kazuyuki Tajima, Kawasaki, JP;
Haruo Yamashita, Kawasaki, JP;
Hideo Tatsuno, Yokosuka, JP;
Fujitsu Limited, Kanagawa, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A 1-bit error correction circuit based on CRC calculation is provided with a syndrome generation circuit which determines input parallel data of m bits and which have been converted from n number of m-bit serial data. A 1-bit error detection circuit cyclically supplies a syndrome to a remainder calculation circuit and decodes remainder data obtained from this cyclic supply and detects 1-bit errors. A actual data reproduction circuit calculates the exclusive OR of output data of a predetermined register of a 1'st.about.n'th register of a syndrome generation circuit and data supplied to a predetermined register and obtains parallel data which is the actual data. A correction circuit which calculates a exclusive OR of parallel data obtained from a actual data reproduction circuit and 1-bit error data detected by the 1-bit error detection circuit and outputs corrected data.