G - Physics – 11 – B
Patent
G - Physics
11
B
G11B 20/10 (2006.01) G09B 5/06 (2006.01) G11B 7/0037 (2006.01) G11B 27/028 (2006.01) G11B 27/034 (2006.01) G11B 27/10 (2006.01) G11B 27/30 (2006.01) H04B 1/20 (2006.01) G11B 27/34 (2006.01)
Patent
CA 2175349
A method and apparatus for storing and presenting visual and audible information to an individual. Audio source signals from each channel of a stereophonic audio source (44) are processed by a microcontroller-controlled circuit (48) that also receives commands from a programmer. The commands from the programmer cause the generation of pulsed control signals for each channel. The pulsed control signals contain only low audio frequencies. The audio source signals are processed so that their spectral frequencies are translated above the low audio frequency range of the pulsed control signals and inverted. The pulsed control signals for each channel are then added (110) to the corresponding processed audio source signals to produce two combined audio signals (112). Each combined audio signal contains both the processed audio source signals and the pulse control signals. The combined audio signals are then recorded on a compact disc.
Un procédé et un appareil permettant d'enregistrer et de présenter à une personne des informations visuelles et sonores. Des signaux de source audio provenant des deux voies d'une source (44) audio stéréophonique sont traités par un circuit (48), commandé par microprocesseur, qui reçoit aussi d'un circuit de programmation des ordres qui entraînent l'apparition de signaux de commande impulsionnels sur chaque voie. Ces derniers ne contiennent que des basses fréquences audio. Le traitement des signaux de source audio transfère leurs fréquences spectrales au-dessus de la gamme des basses fréquences audio des signaux de commande impulsionnels, puis il les inverse. Les signaux de commande impulsionnels de chaque voie sont alors ajoutés (110) aux signaux de source audio correspondants et traités pour donner deux signaux (112) audio combinés dont chacun contient à la fois les signaux de source audio traités et les signaux de commande impulsionnels. Ces signaux audio combinés sont alors enregistrés sur un Compact Disc.
Moran Richard P.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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