FR2390054A1 - - Google Patents

Info

Publication number
FR2390054A1
FR2390054A1 FR7811864A FR7811864A FR2390054A1 FR 2390054 A1 FR2390054 A1 FR 2390054A1 FR 7811864 A FR7811864 A FR 7811864A FR 7811864 A FR7811864 A FR 7811864A FR 2390054 A1 FR2390054 A1 FR 2390054A1
Authority
FR
France
Prior art keywords
pair
frequency divider
block
unit
memory
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.)
Granted
Application number
FR7811864A
Other languages
English (en)
Other versions
FR2390054B1 (fr
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.)
Telecom Italia SpA
Original Assignee
CSELT Centro Studi e Laboratori Telecomunicazioni SpA
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 CSELT Centro Studi e Laboratori Telecomunicazioni SpA filed Critical CSELT Centro Studi e Laboratori Telecomunicazioni SpA
Publication of FR2390054A1 publication Critical patent/FR2390054A1/fr
Application granted granted Critical
Publication of FR2390054B1 publication Critical patent/FR2390054B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Microcomputers (AREA)

Abstract

Ce dispositif comprend essentiellement, en plus de ladite unité, un circuit d'interface, un couple de registres, un couple de convertisseurs, un couple de filtres et un échantillonneur. Ladite unité microprogrammée est formée par trois blocs fonctionnels UE, UC, UT, le premier bloc UE comprenant : une unité de calcul AL d'un microcalculateur; un bloc de multiplication BM; une mémoire MD; un multiplexeur MX; un circuit de décalage programmable SC; le second bloc fonctionnel UC comprenant : une mémoire à lecture seulement MM; un circuit des séquences SQ; un registre P; le troisième bloc fonctionnel UT comprenant : un oscillateur numérique OD; un premier diviseur de fréquence DT; un diviseur de fréquence programmable DP; un second diviseur de fréquence DF.
FR7811864A 1977-05-02 1978-04-21 Expired FR2390054B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67967/77A IT1082802B (it) 1977-05-02 1977-05-02 Unita microprogrammata per una apparecchiatura di terminazione di rete in trasmissione dati integrata con dispositivo di mo demodulazione e per la relativa apparecchiatura di centrale

Publications (2)

Publication Number Publication Date
FR2390054A1 true FR2390054A1 (fr) 1978-12-01
FR2390054B1 FR2390054B1 (fr) 1984-01-27

Family

ID=11306800

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7811864A Expired FR2390054B1 (fr) 1977-05-02 1978-04-21

Country Status (12)

Country Link
US (1) US4335446A (fr)
JP (1) JPS5952860B2 (fr)
AT (1) AT373458B (fr)
BE (1) BE866480A (fr)
CA (1) CA1106977A (fr)
CH (1) CH629011A5 (fr)
DE (1) DE2818675C3 (fr)
FR (1) FR2390054B1 (fr)
GB (1) GB1601407A (fr)
IT (1) IT1082802B (fr)
NL (1) NL7804670A (fr)
SE (1) SE424035B (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4514825A (en) * 1982-03-09 1985-04-30 Kinex Corporation High speed digital modem
US4620294A (en) * 1983-09-09 1986-10-28 Cts Corporation Digital signal processor modem
US4691342A (en) * 1983-09-09 1987-09-01 Cts Corporation Multi-speed, full duplex modem
DE3412508A1 (de) * 1984-04-03 1985-10-10 Industronic, Industrie-Electronic Gmbh & Co Kg, 6980 Wertheim Einrichtung zur uebertragung von elektrischen signalen, insbesondere im langwellenbereich
GB8430003D0 (en) * 1984-11-28 1985-01-09 Plessey Co Plc Subscriber line interface modem
US4675863A (en) * 1985-03-20 1987-06-23 International Mobile Machines Corp. Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
JPS6253061A (ja) * 1985-09-02 1987-03-07 Nec Corp 不正アクセス防止方法
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
DE3644066C2 (de) * 1986-08-07 2000-03-02 Interdigital Tech Corp Teilnehmereinheit für ein drahtloses digitales Telefonsystem
CA1260641A (fr) * 1986-10-22 1989-09-26 Jan Heynen Emetteur
JP3231429B2 (ja) * 1992-11-06 2001-11-19 株式会社日立製作所 中央処理装置と乗算器とを有する半導体集積回路装置
US5546383A (en) * 1993-09-30 1996-08-13 Cooley; David M. Modularly clustered radiotelephone system
US7616724B2 (en) * 2004-09-30 2009-11-10 Alcatel-Lucent Usa Inc. Method and apparatus for multi-modulation frame synchronization in a digital communication system
US8126089B2 (en) * 2004-09-30 2012-02-28 Alcatel Lucent Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats
US11622288B2 (en) * 2021-06-03 2023-04-04 Qualcomm Incorporated Indicating blockage events as a cause for changes in rank information or channel quality information

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE848693A (fr) * 1975-11-26 1977-03-16 Dispositif de transfer de donnees entre un support de transmission analogique et des terminaux numeriques,

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825905A (en) * 1972-09-13 1974-07-23 Action Communication Syst Inc Binary synchronous communications processor system and method
US4003032A (en) * 1975-06-09 1977-01-11 Sperry Rand Corporation Automatic terminal and line speed detector
US4085449A (en) * 1976-11-26 1978-04-18 Paradyne Corporation Digital modem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE848693A (fr) * 1975-11-26 1977-03-16 Dispositif de transfer de donnees entre un support de transmission analogique et des terminaux numeriques,

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *
EXBK/77 *

Also Published As

Publication number Publication date
ATA299878A (de) 1983-05-15
DE2818675C3 (de) 1981-10-08
CH629011A5 (it) 1982-03-31
JPS53136405A (en) 1978-11-29
US4335446A (en) 1982-06-15
BE866480A (fr) 1978-08-14
FR2390054B1 (fr) 1984-01-27
DE2818675A1 (de) 1978-11-09
AT373458B (de) 1984-01-25
SE424035B (sv) 1982-06-21
NL7804670A (nl) 1978-11-06
CA1106977A (fr) 1981-08-11
IT1082802B (it) 1985-05-21
GB1601407A (en) 1981-10-28
JPS5952860B2 (ja) 1984-12-21
DE2818675B2 (de) 1980-12-04
SE7804722L (sv) 1978-11-03

Similar Documents

Publication Publication Date Title
FR2390054A1 (fr)
FR2341905A1 (fr) Systeme perfectionne de transmission de donnees et de traitement numerique
NL7702854A (nl) Medische handschoen alsmede werkwijze voor het vervaardigen daarvan.
NL7805785A (nl) Vloeibare kristalmengsels, alsmede werkwijze voor het bereiden daarvan.
IT1155890B (it) Metodi ed apparecchi perfezionati per fare pannelli di circuiti tracciati
IT1087252B (it) Forno di cottura per lavorazioni in ceramica di carattere dentario
PL209918A1 (pl) Srodek grzybologiczny oraz sposob wytwarzania diastereomerycznych triazolilo-o,n-acetali
NL7703930A (nl) Uitstalrek of vitrine.
BE840797A (fr) Derives de (1-( , , -triallyakyl)4-phenyl-4-piperidine)methanols, leurpreparation et leur utilisation therapeutique
IT7826467A0 (it) Cannula e metodo per flusso bidirezionale del sangue.
BR7803758A (pt) Dispositivo medico e gerador de pulso cardiaco digitalmente controlados
BE868589A (fr) Nouveaux derives d'aminoacides alpha-acetyleniques et leur utilisation therapeutique
NL7807795A (nl) Wegwerpluierbroekje.
SE7804747L (sv) Elektronisk sendare for likstromstelegrafi
FR2379857A1 (fr) Generateur de signaux d'horloges dans un systeme de traitement de l'information
DK461678A (da) Elektronisk anordning bestaaende af laas og noegle
FR2434513A1 (fr) Groupe de commande pour un convertisseur statique polyphase
IT1089420B (it) Rete elettonica per apparecchi telefonici
IT7849909A0 (it) Filtro digitale per circuiti generatori di forme d'onda complesse per esempio la parola umana
JPS55162658A (en) Synchronizing system in push-button telephone unit
JPS53112627A (en) Division control system
NL7808491A (nl) Kanaalkiesinrichting voor toepassing bij meervoudige afstemeenheden.
JPS5324052A (en) Method of making juice from plum fluit and side dish of plum
NL7811728A (nl) Werkwijze en inrichting voor digitale frequentiedeling.
DK77278A (da) Koelekompressor og smoeresustem dertil

Legal Events

Date Code Title Description
ST Notification of lapse