METHOD OF CONVERSION OF SERIES OF INFORMATION WORDS OF 'M' BITS IN MODULATED SIGNAL, METHOD OF PRODUCTION OF RECORDING SUPPORT, DEVICE OF CODIFICATION, DEVICE OF DECODIFICATION, DEVICE OF RECORDING, DEVICE OF READING SIGNAL, ASI AS GRAB.

摘要

THE PATENT REFERS TO A METHOD FOR CONVERTING A M BITS INFORMATION WORD SIGNAL (1) IN A MODULATED SIGNAL (7). FOR EACH SERIES INFORMATION WORD A M BIT CODE WORD IS PROVIDED (4). THE WORDS OF CODE PROVIDED (4) BECOME THE MODULATED SIGNAL (7). THE WORDS OF CODE (4) ARE DISTRIBUTED ON AT LEAST ONE GROUP (G11, G12) OF A FIRST TYPE AND ON AT LEAST ONE GROUP (G2) OF A SECOND TYPE. FOR THE SUPPLY OF EACH OF THE CODE WORDS THAT BELONG TO THE GROUP (G11, G12) OF THE FIRST TYPE THE ASSOCIATED GROUP ESTABLISHES A STATE OF CODIFICATION (S1, S4) OF THE FIRST TYPE. WHEN EACH ONE OF THE WORDS OF CODE (4) BELONGING TO THE GROUP (G2) OF THE SECOND TYPE A CODING STATUS (S2, S3) OF THE SECOND TYPE IS DETERMINED BY A WORD OF INFORMATION THAT BELONGS TO THE WORD CODE SUPPLIED. WHEN ONE OF THE WORDS OF CODE (4) IS ASSIGNED TO THE WORD OF INFORMATION RECEIVED (1), CODE WORD IS SELECTED BETWEEN A SET (V1, V2, V3, V4) OF WORD OF CODE THAT DEPENDS ON THE CODING STATES (S1, S2, S3, S4). CODE WORD SETS (V2, V3) BELONGING TO THE STATUS OF CODING (S1, S2) OF THE SECOND TYPE ARE DISGREGATED. IN THIS CODING METHOD, THE NUMBER OF COMBINATION OF SINGLE BITS THAT CAN BE ESTABLISHED THROUGH THE CODE WORDS IN THE SERIES. THE MODULATED SIGNAL (7) SO OBTAINED CAN BE RECOGNIZED IN INFORMATION WORDS (4) THROUGH A FIRST CONVERSION OF THE MODULATED SIGNAL (7) IN A SERIES OF CODE WORDS (4) AND ALLOCATING THEN AN INFORMATION WORD (1) TO EACH ONE OF THE SERIAL CODE WORDS DEPENDING ON THE CODE WORD TO BE CONVERTED AND ALSO DEPENDING ON THE LOGICAL VALUES OF BIT CHAINS BITS THAT ARE LOCATED IN DEFAULT POSITIONS IN RELATION TO THE WORD OF CODE. IN ADDITION, A RECORDING DEVICE AND A READING DEVICE ARE PRESENTED.