Methods and apparatus for concurrently processing data from...

G - Physics – 11 – B

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G11B 7/14 (2006.01) G11B 20/10 (2006.01) G11B 20/14 (2006.01) G11B 20/18 (2006.01) G11B 27/30 (2006.01)

Patent

CA 2281790

Methods and apparatus are provided for synchronously reading data from multiple tracks of an optical disk using multiple illumination beams. Circuitry is provided for use with a photodetector array to read and buffer data in parallel from the multiple adjacent tracks, while asynchronously providing processed data to a host processor. Circuitry is further provided for concurrently processing the signals read from the multiple data tracks to recover the data stored in the tracks.

L'invention concerne des procédés et dispositif de lecture synchrone de données, à partir de plusieurs pistes d'un disque optique et au moyen de plusieurs faisceaux d'éclairage. On a monté des circuits que l'on utilise avec une matrice de photodétecteurs, afin de lire des données à partir de plusieurs pistes adjacentes et parallèlement de faire transiter ces données par une mémoire tampon, et de fournir de manière asynchrone des données traitées à un processeur hôte. On a également monté de circuits pour traiter simultanément des signaux lus à partir des multiples pistes de données, afin de récupérer les données conservées dans les pistes.

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