Patent ID: 7889764

Claim:
A method for establishing a correspondence by intervals ([T B ], [T AB ]) between the time (T B ) indicated by a first monotonic clock (H B ) and the time (T A ) indicated by a second clock (H A ), also monotonic, characterized in that it operates, over at least one temporal range (P 1 , P 4 ), a first temporal reference (NT) common to the first and to the second clock and monotonic over said range, and in that said method comprises the steps of: a) determining a first temporal interval ([T B 1 ]) bounded by a first pair of time values (T B ) of the first clock (H B ) and belonging to a first temporal range (P 1 ) over which the first temporal reference (NT) common to the first and to the second clock exists; b) determining a second temporal interval ([T B 2 ]) bounded by a second pair of time values (T B ) of the first clock (H B ) and belonging to a second temporal range (P 4 ) over which the first temporal reference (NT) common to the first and to the second clock exists; c) determining, by means of the common temporal reference (NT), a third temporal interval ([T AB 1 ]), bounded by a first pair of time values (T A ) of the second clock (H A ), and containing the first temporal interval ([T B 1 ]); d) determining, by means of the common temporal reference (NT), a fourth temporal interval ([T AB 2 ]), bounded by a second pair of time values (T A ) of the second clock (H A ), and containing the second temporal interval ([T B 2 ]); e) for any given fifth temporal interval ([T B ]) bounded by a third pair of time values (T B ) of the first clock (H B ), calculating a sixth temporal interval ([T AB ]), bounded by a third pair of time values (T A ) of the second clock (H A ), and containing said fifth temporal interval ([T B ]), the calculation being performed by interpolation or extrapolation using said first ([T B 1 ]), second ([T B 2 ]), third ([T AB 1 ]) and fourth ([T AB 2 ]) intervals; wherein at least the steps a) through e) are implemented by a computer.