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Machine translation
1. (WO1980000770) DRIVING POINT IMPEDANCE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000770    International Application No.:    PCT/US1979/000756
Publication Date: 17.04.1980 International Filing Date: 24.09.1979
IPC:
H04B 1/58 (2006.01), H04B 3/40 (2006.01)
Applicants:
Inventors:
Priority Data:
949576 10.10.1978 US
Title (EN) DRIVING POINT IMPEDANCE
(FR) IMPEDANCE AU POINT D"ENTRAINEMENT
Abstract: front page image
(EN)A class of electronic hybrids is disclosed in which the line balancing impedance (13) is made frequency-sensitive in order to better match the frequency characteristic of the connected line (10) and is made voltage-controlled (Vc) in order that a single network can be used to match a variety of different gauges of telephone cable pairs (10). The magnitude of the balancing impedance (13) is inversely proportional to the square root of frequency in the low frequency range and is essentially constant in the high frequency range.
(FR)Une classe d"hybrides electronique est decrite dans laquelle l"impedance d"equilibre de ligne (13) est sensible a la frequence de maniere a mieux coupler la caracteristique de frequence de la ligne connectee (10), elle est commandee par tension (Vc) de maniere a ce qu"un seul reseau puisse etre utilise pour coupler ne variete de jauges differentes de paire de cables de telephone (10). La grandeur de l"impedance d"equilibrage (13) est inversement proportionnelle a la racine carree de la frequence dans la gamme des basses frequences et elle est essentiellement constante dans la gamme des hautes frequences.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)