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A programmable odor-bearing substance diffusion device includes a number n of odor diffusion devices, where n is equal to or greater than 1, each odor diffusion device including a store of an odor source which is dispensed by the odor diffusion device, a device for independently controlling each odo

A programmable odor-bearing substance diffusion device includes a number n of odor diffusion devices, where n is equal to or greater than 1, each odor diffusion device including a store of an odor source which is dispensed by the odor diffusion device, a device for independently controlling each odor diffusion device to emit a single odor or a mixture of odors from a by a combination of p of the n stores, and a programmable control device for establishing odor peak emission cycles and a predetermined interval between two successive emission cycles, the predetermined interval being based on an olfactory saturation and desaturation times of the olfactory system of a user.

대표청구항 ▼

A programmable odor-bearing substance diffusion device includes a number n of odor diffusion devices, where n is equal to or greater than 1, each odor diffusion device including a store of an odor source which is dispensed by the odor diffusion device, a device for independently controlling each odo

A programmable odor-bearing substance diffusion device includes a number n of odor diffusion devices, where n is equal to or greater than 1, each odor diffusion device including a store of an odor source which is dispensed by the odor diffusion device, a device for independently controlling each odor diffusion device to emit a single odor or a mixture of odors from a by a combination of p of the n stores, and a programmable control device for establishing odor peak emission cycles and a predetermined interval between two successive emission cycles, the predetermined interval being based on an olfactory saturation and desaturation times of the olfactory system of a user. min to points of said first electrical signal having minimum amplitude Vmin. 10. A device according to claim 7, further comprising means for controlling said variable gain amplifying means. 11. A device for reading coded information, comprising: illumination means; means for picking-up a luminous signal diffused by an illuminated support containing coded information; means for detecting the luminous signal and for generating a first electrical signal proportional to said luminous signal; means for processing said first electrical signal to extract the coded information; wherein the device comprises means for varying an amplitude pattern of said first electrical signal along at least one reading direction, so as to generate a modified first electrical signal having, along said at least one reading direction, a predetermined amplitude pattern; wherein the means for varying the amplitude pattern of said first electrical signal comprises amplifying means with a gain variable according to a predetermined variation law; further comprising means for controlling said variable gain amplifying means, said controlling means comprising: means for generating at least one second electrical signal variable according to an inverse variation law with respect to that of at least one third electrical signal, the at least one third electrical signal being representative of a luminous signal diffused by a reference target placed on at least one predetermined distance; means for synchronizing said at least one second electrical signal with said first electrical signal. 12. A device according to claim 11, wherein said reference target is a white-colored plane support. 13. A device according to claim 11, wherein said at least one third signal is a signal representative of the mean of the electrical signals detected when placing the reference target at different distances. 14. A device for detecting a luminous signal diffused by a support containing coded information, the device comprising: photo-receiving means which generates a first electrical signal proportional to a luminous signal diffused by a support containing coded information, means for varying an amplitude pattern of said first electrical signal, along at least one reading direction, so as to generate a modified first electrical signal having, along said at least one reading direction, a predetermined amplitude pattern. 15. A method for reading coded information, comprising the following steps: illuminating a support containing coded information; picking-up a luminous signal diffused by said illuminated support; detecting said luminous signal so as to generate a first electrical signal proportional to said luminous signal; processing said first electrical signal so as to extract the coded information; varying an amplitude pattern of said first electrical signal along at least one reading direction, so as to generate a modified first electrical signal having, along said at least one reading direction, a predetermined amplitude pattern, said modified first electrical signal being processed to extract the coded information. 16. The method according to claim 15, wherein said first electrical signal has an amplitude pattern variable, along said at least one reading direction, between at least one maximum value Vmax and at least one minimum value Vmin, and further comprising varying the amplitude pattern of said first electrical signal along said at least one reading direction to generate the modified first electrical signal with a substantially constant amplitude pattern. 17. The method according to claim 15, wherein the step of varying the amplitude pattern of said first electrical signal occurs point by point. 18. The method according to claim 15, wherein the step of varying the amplitude pattern of said first electrical signal comprises the step of amplifying said first electrical signal by applying thereto a gain variable according to a predetermined variatio