ES8708103A1 - Modulador-demodulador para sistema telefonico - Google Patents

Modulador-demodulador para sistema telefonico

Info

Publication number
ES8708103A1
ES8708103A1 ES548367A ES548367A ES8708103A1 ES 8708103 A1 ES8708103 A1 ES 8708103A1 ES 548367 A ES548367 A ES 548367A ES 548367 A ES548367 A ES 548367A ES 8708103 A1 ES8708103 A1 ES 8708103A1
Authority
ES
Spain
Prior art keywords
signal
analogue
symbol
modem
frequency
Prior art date
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.)
Expired
Application number
ES548367A
Other languages
English (en)
Other versions
ES548367A0 (es
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.)
InterDigital Inc
International Mobile Machines Corp
Original Assignee
InterDigital Inc
International Mobile Machines Corp
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 InterDigital Inc, International Mobile Machines Corp filed Critical InterDigital Inc
Priority to ES548367A priority Critical patent/ES8708103A1/es
Publication of ES548367A0 publication Critical patent/ES548367A0/es
Publication of ES8708103A1 publication Critical patent/ES8708103A1/es
Expired legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

MODEM PARA UN SISTEMA TELEFONICO. SE COMPONE DE: UNA MEMORIA DE LECTURA (ROM) DE CONVERSACION DE MODULACION DE FASE DIGITAL (10); UNA UNIDAD CONMUTADORA DE MODALIDAD DE PREPARACION (11); UN FILTRO DIGITAL DE RESPUESTA DE IMPULSOS DE DURACION FINITA (12); UNOS REGISTROS DE INTERFACE Y UNIDAD DE CONTROL DE BUS (23) CON UN REGISTRO DE ESTADO (24), UN REGISTRO DE ENLACE (25); UN REGISTRO DE AGC (26), UN REGISTRO DE FRECUENCIA DE RX (27); UN REGISTRO DE RETARDOS FRACCIONABLES (28); UN REGISTRO DE FASE DE CUADRATURA (30); UNA UNIDAD DE CONTROL (31); UNAS MEMORIAS INTERMEDIAS (34) Y UN GENERADOR DE RETARDO DE TIEMPO FRACCIONAL (40).
ES548367A 1985-10-30 1985-10-30 Modulador-demodulador para sistema telefonico Expired ES8708103A1 (es)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES548367A ES8708103A1 (es) 1985-10-30 1985-10-30 Modulador-demodulador para sistema telefonico

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES548367A ES8708103A1 (es) 1985-10-30 1985-10-30 Modulador-demodulador para sistema telefonico

Publications (2)

Publication Number Publication Date
ES548367A0 ES548367A0 (es) 1987-09-01
ES8708103A1 true ES8708103A1 (es) 1987-09-01

Family

ID=8490062

Family Applications (1)

Application Number Title Priority Date Filing Date
ES548367A Expired ES8708103A1 (es) 1985-10-30 1985-10-30 Modulador-demodulador para sistema telefonico

Country Status (1)

Country Link
ES (1) ES8708103A1 (es)

Also Published As

Publication number Publication date
ES548367A0 (es) 1987-09-01

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20070523