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Machine translation
1. (WO1981000658) TELEPHONE LINE DATA ISOLATOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000658    International Application No.:    PCT/AU1980/000058
Publication Date: 05.03.1981 International Filing Date: 01.09.1980
IPC:
H04M 11/06 (2006.01)
Applicants:
Inventors:
Priority Data:
285/79 31.08.1979 AU
Title (EN) TELEPHONE LINE DATA ISOLATOR
(FR) AFFAIBLISSEUR NON-RECIPROQUE DE DONNEES DE LIGNES TELEPHONIQUES
Abstract: front page image
(EN)An isolation device, primarily for isolating telephone terminal elements and data transmission and/or receiving modules from telephone lines, whilst enabling telephone and/or encoded data signals to be transferred between the elements/modules and the lines, consisting of a high frequency transformer (16) serving as an isolation barrier, and circuitry including an oscillator (18) capable of representing line signals as modulated voltages across the transformer to produce a direct current across the element/module load, and to represent fluctuations in said direct current at said line. The circuitry also enables direct current to be provided at the load to power and element or module.
(FR)Un dispositif tampon, essentiellement pour l"affaiblissement non-reciproque d"elements de terminaux telephoniques et de modules de transmission et/ou de reception de donnees par des lignes telephoniques, tout en permettant le transfert de signaux de donnees telephoniques et/ou codes entre les elements/modules et les lignes, comprend un transformateur de haute frequence (16) jouant le role de barriere-tampon, et un circuit comprenant un oscillateur (18) capable de representer des signaux de lignes sous forme de tensions modulees sur le transformateur pour produire un courant continu sur la charge element/ module, et pour representer les fluctuations de ce courant continu sur la ligne en question. Le reseau de circuit permet aussi d"amener le courant continu a la charge pour alimenter un element ou module.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)