Automatic telephone dialling device

Details Automatic telephone dialling device Automatic telephone dialling device

H - Electricity

04

M

H04M 1/274 (2006.01)

Patent

CA 2202522

Device for automatically dialling stored telephone numbers for use in conjunction with a telephone handset. The device comprises a flat support consisting of two thin plates (8, 9). A disc-shaped acoustic transducer (2) operating at voice frequency and made of a resonating sheet, is inserted between said plates (8, 9), one of said plates having a cut out portion (at 10) located at the location of said sheet. The unit has a thin cross section (e) and can be made to the size of a credit card.

Le dispositif, permettant la composition automatique de numéros de téléphone mémorisés, s'utilise en combinaison avec un combiné téléphonique. Ce dispositif comprend, à l'intérieur d'un support plat constitué de deux plaques minces (8, 9), au moins un transducteur acoustique (2) en forme de petit disque, fonctionnant en fréquence vocale, qui est réalisé à partir d'une feuille résonante insérée entre les deux plaques (8, 9), dont l'une est ajourée (en 10) au droit de cette feuille résonante. L'ensemble est de faible épaisseur (e) et peut être réalisé au format d'une carte de crédit.

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