DATA-BLOCK ENCODING METHOD FOR GENERATING REDUNDANT INFORMATION BASED ON SYMBOL LENGTH CODE, SYMBOL LENGTH REED-SOLOMON CODE-BASED ENCODING METHOD FOR BLOCK-WISE FORMATED DATA RECEIVED BY ENCODER AS A SERIES OF DATA WORD, AND WORD TYPE ENCODER

Japanese Patent JPH0936753

A

PROBLEM TO BE SOLVED: To obtain an encoder circuit in response to a storage length code and a word clock signal by forming the word form encoder with four GF adders, two fixed value g1 multipliers and two storage registers. SOLUTION: A parallel input word for encoder has two fixed value g1 multipliers 22, four GF adders 20, and two storage registers 24, 26 being registers R0 , R1 for registering. The encoder 18 has two inputs 21, 23 to which data bytes mi+1 , mi is received. A combination between a term produced from feedback of initial contents Vi , Wi of the registers R0 , R1 on lines 25, 29 in one word clock cycle and the incoming data bytes mi+1 , mi is obtained at an output of the adders 20 and the multipliers 22 of the encoder. The longest propagation path in this encoder is a path passing through the two fixed value g1 multipliers 22 and the three GF adders 20.

RISA FUREDORITSUKUSON

JP17924996A

February 07, 1997

July 09, 1996

Click for automatic bibliography generation  

QUANTUM CORP

G06F11/10; G11B20/18; H03M13/00; H03M13/15; (IPC1-7): H03M13/00; G06F11/10; G11B20/18

Fukami Hisaro (3 outside)

Next Patent: VITERBI DATA DISCRIMINATOR