IT8320358A0 - Dati digitali. circuito di interfaccia digitale per interfacciare apparecchiature a - Google Patents
Dati digitali. circuito di interfaccia digitale per interfacciare apparecchiature aInfo
- Publication number
- IT8320358A0 IT8320358A0 IT8320358A IT2035883A IT8320358A0 IT 8320358 A0 IT8320358 A0 IT 8320358A0 IT 8320358 A IT8320358 A IT 8320358A IT 2035883 A IT2035883 A IT 2035883A IT 8320358 A0 IT8320358 A0 IT 8320358A0
- Authority
- IT
- Italy
- Prior art keywords
- digital
- interface circuit
- interfacing equipment
- digital data
- digital interface
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/07—Synchronising arrangements using pulse stuffing for systems with different or fluctuating information rates or bit rates
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/363,424 US4488294A (en) | 1982-03-30 | 1982-03-30 | Establishing and supporting data traffic in private branch exchanges |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8320358A0 true IT8320358A0 (it) | 1983-03-29 |
IT1173660B IT1173660B (it) | 1987-06-24 |
Family
ID=23430149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT20358/83A IT1173660B (it) | 1982-03-30 | 1983-03-29 | Circuito di interfaccia digitale per interfacciare apparecchiature a dati digitali |
Country Status (5)
Country | Link |
---|---|
US (1) | US4488294A (it) |
KR (1) | KR840004638A (it) |
AU (1) | AU1258383A (it) |
GB (1) | GB2118400A (it) |
IT (1) | IT1173660B (it) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4607364A (en) * | 1983-11-08 | 1986-08-19 | Jeffrey Neumann | Multimode data communication system |
US4642805A (en) * | 1984-06-25 | 1987-02-10 | Rolm Corporation | Digital link for telephone station sets |
US4719617A (en) * | 1985-02-25 | 1988-01-12 | U.S. Holding Company | Full service voice/data system |
US4789981A (en) * | 1985-02-25 | 1988-12-06 | Alcatel N.V. | System for providing data services to a circuit switched exchange |
US4716562A (en) * | 1985-03-12 | 1987-12-29 | Pacific Bell | Telephone system |
US4718082A (en) * | 1985-09-18 | 1988-01-05 | Ark Electronics | Modem for effecting full duplex asynchronous/synchronous digital data communications over voice grade telephone link |
US4805194A (en) * | 1985-10-17 | 1989-02-14 | Ampex Corporation | Serial data communication system |
GB2191068A (en) * | 1986-05-28 | 1987-12-02 | Marconi Instruments Ltd | Electrical apparatus for extracting clock signals |
US4868864A (en) * | 1986-07-15 | 1989-09-19 | Hayes Microcomputer Products, Inc. | Autocorrelating 2400 bps handshake sequence detector |
US5040194A (en) * | 1986-07-15 | 1991-08-13 | Hayes Microcomputer Products, Inc. | Method and apparatus for providing for automatic gain control of incoming signals in a modem |
US4849703A (en) * | 1986-07-15 | 1989-07-18 | Hayes Microcomputer Products, Inc. | Method and apparatus for generating a data sampling clock locked to a baud clock contained in a data signal |
US4910474A (en) * | 1986-07-15 | 1990-03-20 | Hayes Microcomputer Products, Inc. | Method and apparatus for generating phase and amplitude modulated signals |
US4808937A (en) * | 1986-07-15 | 1989-02-28 | Hayes Microcomputer Products, Inc. | Phase-locked loop for a modem |
US4908819A (en) * | 1987-06-08 | 1990-03-13 | Seiscor Technologies, Inc. | Integrated data voice multiplexer supporting handshake and loop-back protocols |
US4805171A (en) * | 1987-07-10 | 1989-02-14 | Solid State Systems, Inc. | Unitary PCM rate converter and multiframe buffer |
FR2626426B1 (fr) * | 1988-01-22 | 1994-02-25 | Telic Alcatel | Systeme de commutation temporelle |
FR2657482B1 (fr) * | 1990-01-19 | 1993-12-31 | Boyer Pierre | Methode et systeme de lissage et de controle de debits de communications temporelles asynchrones. |
FR2665596B1 (fr) * | 1990-08-02 | 1994-08-05 | Matra Communication | Procede et dispositif d'adaptation d'un signal transmis entre deux reseaux numeriques. |
US5307342A (en) * | 1991-08-30 | 1994-04-26 | International Business Machines Corporation | Heterogeneous ports switch |
GB2271485B (en) * | 1992-10-08 | 1996-05-08 | Richard John Hocking | Telecommunication apparatus |
US6334219B1 (en) | 1994-09-26 | 2001-12-25 | Adc Telecommunications Inc. | Channel selection for a hybrid fiber coax network |
US7280564B1 (en) | 1995-02-06 | 2007-10-09 | Adc Telecommunications, Inc. | Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing |
USRE42236E1 (en) | 1995-02-06 | 2011-03-22 | Adc Telecommunications, Inc. | Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing |
GB2333916B (en) * | 1998-01-09 | 2001-08-01 | Plessey Semiconductors Ltd | A phase detector |
US6934381B1 (en) | 1999-08-16 | 2005-08-23 | Avaya Technology Corp. | Contact routing system and method |
US7039150B1 (en) * | 1999-10-13 | 2006-05-02 | Xicor, Inc. | Serial interface for a battery management system |
US7042908B1 (en) * | 2000-07-10 | 2006-05-09 | Nortel Networks Limited | Method and apparatus for transmitting arbitrary electrical signals over a data network |
JP4053979B2 (ja) * | 2001-07-20 | 2008-02-27 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 時間変化するデータレートの認識方法および装置 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3461245A (en) * | 1965-11-09 | 1969-08-12 | Bell Telephone Labor Inc | System for time division multiplexed signals from asynchronous pulse sources by inserting control pulses |
US3497627A (en) * | 1966-04-15 | 1970-02-24 | Ibm | Rate conversion system |
GB1206714A (en) * | 1968-01-22 | 1970-09-30 | Plessey Telecomm Res Ltd | Improvements in or relating to telegraph signalling systems |
US3652800A (en) * | 1970-05-27 | 1972-03-28 | North Electric Co | Digital pulse transmission through an analog tdm switching system |
US3746800A (en) * | 1971-08-16 | 1973-07-17 | Rixon | Clock recovery system |
US3862373A (en) * | 1972-01-06 | 1975-01-21 | Databit Inc | Adaptive sampling rate time division multiplexer and method |
US3739351A (en) * | 1972-02-22 | 1973-06-12 | Us Navy | Phase control circuits |
FR2206544B1 (it) * | 1972-11-10 | 1976-12-31 | Trt Telecom Radio Electr | |
US3789154A (en) * | 1972-12-11 | 1974-01-29 | Bell Telephone Labor Inc | Switchhook status signaling arrangement |
US3934099A (en) * | 1974-08-16 | 1976-01-20 | Bell Telephone Laboratories, Incorporated | Bias, feedback and network arrangements for hybrid circuits |
GB1479313A (en) * | 1975-03-26 | 1977-07-13 | Marconi Co Ltd | Digital data rate converters |
US4025720A (en) * | 1975-05-30 | 1977-05-24 | Gte Automatic Electric Laboratories Incorporated | Digital bit rate converter |
IT1074199B (it) * | 1976-12-23 | 1985-04-17 | Italiana Telecomunicazioni Ora | Memoria elastica per la soppressione del disturbo di fase (jitter)nei sistemi di trasmissione per segnali digitali |
US4270183A (en) * | 1977-02-11 | 1981-05-26 | Lockheed Aircraft Corp. | Data dejittering apparatus |
US4247937A (en) * | 1977-11-24 | 1981-01-27 | Plessey Handel Und Investments Ag | Synthesis arrangements for use in digital data transmission systems |
US4154985A (en) * | 1978-04-28 | 1979-05-15 | Northern Telecom Limited | Interface circuit for digital telephone facilities |
US4206322A (en) * | 1978-09-25 | 1980-06-03 | Bell Telephone Laboratories, Incorporated | Time-division switching system for multirate data |
US4229815A (en) * | 1978-11-20 | 1980-10-21 | Bell Telephone Laboratories, Incorporated | Full duplex bit synchronous data rate buffer |
US4215245A (en) * | 1978-12-29 | 1980-07-29 | Bell Telephone Laboratories, Incorporated | Variable rate synchronous digital transmission system |
JPS5923660B2 (ja) * | 1979-02-19 | 1984-06-04 | 株式会社日立製作所 | ディジタル信号伝送方式 |
US4259738A (en) * | 1979-05-18 | 1981-03-31 | Raytheon Company | Multiplexer system providing improved bit count integrity |
IT1146176B (it) * | 1980-02-07 | 1986-11-12 | Italdata Spa | Dispositivo interfacciale per la gestione automatica di una linea telefonica commutata |
DE3106388A1 (de) * | 1981-02-20 | 1982-09-16 | Siemens AG, 1000 Berlin und 8000 München | Digital-vermittlungseinrichtung |
US4398287A (en) * | 1981-09-01 | 1983-08-09 | Bell Telephone Laboratories, Incorporated | Digital switching over PAM bus system |
-
1982
- 1982-03-30 US US06/363,424 patent/US4488294A/en not_active Expired - Lifetime
-
1983
- 1983-03-18 AU AU12583/83A patent/AU1258383A/en not_active Abandoned
- 1983-03-24 GB GB08308157A patent/GB2118400A/en not_active Withdrawn
- 1983-03-29 IT IT20358/83A patent/IT1173660B/it active
- 1983-03-31 KR KR1019830001343A patent/KR840004638A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU1258383A (en) | 1983-10-06 |
GB8308157D0 (en) | 1983-05-05 |
GB2118400A (en) | 1983-10-26 |
IT1173660B (it) | 1987-06-24 |
US4488294A (en) | 1984-12-11 |
KR840004638A (ko) | 1984-10-22 |
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