Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonica SA
Original Assignee
Telefonica de Espana SA
Telefonica Nacional de Espana SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Telefonica de Espana SA, Telefonica Nacional de Espana SAfiledCriticalTelefonica de Espana SA
Priority to ES8904363ApriorityCriticalpatent/ES2020374A6/es
Publication of ES2020374A6publicationCriticalpatent/ES2020374A6/es
Transmission Systems Not Characterized By The Medium Used For Transmission
(AREA)
Abstract
CONSTITUIDO POR UN INTERFAZ DE MICROPROCESADOR, UN CIRCUITO DE RELOJ, UN CONVERSOR ASINCRONO/SINCRONO, UN TRANSMISOR/RECEPTOR DE ORDENES DE BUCLE Y PUESTA EN CONTACTO, UN ALEATORIZADOR/DESALEATORIZADOR, UN CODIFICADOR DECODIFICADOR, UN CANCELADOR DE ECO Y UN DITHER, TODOS LOS CUALES TIENEN UN FUNCIONAMIENTO TOTALMENTE DIGITAL, IMPLEMENTANDO A UN CONVERSOR SINCRONO/ASINCRONO QUE PERMITE REALIZAR LA TRANSMISION DE DATOS EN UN AMPLIO RANGO DE VELOCIDADES COMPRENDIDO ENTRE 1.200 BIT/SEG Y 64 KBIT/SG.
ES8904363A1989-12-261989-12-26Cancelador de eco.
Expired - LifetimeES2020374A6
(es)
Circuit arrangement for transmitting line and/or selection signals on telephone lines, mainly to telephone sets, line equipments of dispatcher equipments or line extension equipments