Method and apparatus for recording sensor data

Details Method and apparatus for recording sensor data Method and apparatus for recording sensor data

H - Electricity

04

L

H04L 9/00 (2006.01) G01D 9/06 (2006.01) G07C 5/08 (2006.01) G11B 20/00 (2006.01) H04N 7/08 (2006.01) H04N 7/18 (2006.01) H04N 7/26 (2006.01) H04N 9/82 (2006.01) H04N 5/781 (2006.01) H04N 5/782 (2006.01) H04N 5/907 (2006.01) H04N 9/804 (2006.01)

Patent

CA 2188250

A method and apparatus for recording sensor data. The analog and digital signals containing the sensor data are accompanied by a concurrent analog video signal. The analog signals are converted to digital form and highly redundant signals are compressed according to conventional compression technique. The resulting compressed and uncompressed signals are encrypted and stored on a removable hard disk. The data stored on the removable hard disk can later be played back to reconstruct the original signals while assuring that the played back signals are correct reconstructions of the original signals.

La présente invention concerne un procédé et un dispositif d'enregistrement de données fournies par des capteurs (66, 11, 12, 14, 16, 18, 20, 21). Les signaux analogiques et numériques véhiculant les données en provenance des capteurs sont accompagnés d'un signal vidéo analogique concomitant (64, 24, 25). Les signaux analogiques sont numérisés, les signaux fortement redondants sont comprimés par des procédés de compression classiques. Les signaux, comprimés et non comprimés résultants sont codés et stockés sur un disque dur amovible (24, 30). Les données stockées sur le disque dur amovible (30) peuvent ensuite être restituées pour reconstituer les signaux originaux avec la garantie que les signaux restitués sont des reconstitutions correctes des signaux originaux.

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