Polarization diversity for optical fiber applications

G - Physics – 01 – H

Patent

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G01H 9/00 (2006.01)

Patent

CA 2598274

An apparatus including sensors that aid in the location of a stylus within the groove of a rotating record. The location of the stylus corresponds to a portion of an audio waveform present at a unique location within the groove. Using the correspondence between the location of the stylus and the portion of the audio waveform, an external digital source may be synchronized with an analog waveform. A high speed digital data path connects a control unit including a turntable platter to signal processing unit. Software in the signal processing unit synchronizes the analog waveform and digital signals from the external digital source.

L'invention concerne un appareil équipé de capteurs de localisation d'un pointeur dans le sillon d'un disque rotatif. L'emplacement du pointeur correspond à une partie d'une forme d'onde audio présente au niveau d'un emplacement spécifique du sillon. La mise en correspondance de l'emplacement du pointeur et de ladite partie de la forme d'onde audio permet de synchroniser une source numérique externe et une forme d'onde analogue. Une voie de données numérique haute vitesse connecte une unité de commande comprenant une platine à une unité de traitement de signaux. Le logiciel de l'unité de traitement de signaux synchronise la forme d'onde analogue et les signaux numériques de la source numérique externe.

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