ES2051295T3 - Metodo y aparato para detectar una velocidad de transmision de datos. - Google Patents

Metodo y aparato para detectar una velocidad de transmision de datos.

Info

Publication number
ES2051295T3
ES2051295T3 ES88301557T ES88301557T ES2051295T3 ES 2051295 T3 ES2051295 T3 ES 2051295T3 ES 88301557 T ES88301557 T ES 88301557T ES 88301557 T ES88301557 T ES 88301557T ES 2051295 T3 ES2051295 T3 ES 2051295T3
Authority
ES
Spain
Prior art keywords
speed
data
asynchronous interface
processor
terminal
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 - Lifetime
Application number
ES88301557T
Other languages
English (en)
Inventor
Gregory Lese
John Davis Price
Ralph Eric Richardson
Cu Trong Than
Mark Douglas Vancura
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.)
AT&T Corp
Original Assignee
American Telephone and Telegraph Co Inc
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 American Telephone and Telegraph Co Inc filed Critical American Telephone and Telegraph Co Inc
Application granted granted Critical
Publication of ES2051295T3 publication Critical patent/ES2051295T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing
    • H04L5/24—Arrangements affording multiple use of the transmission path using time-division multiplexing with start-stop synchronous converters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Communication Control (AREA)
  • Information Transfer Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

SE PRESENTA UNA INTERFAZ ASINCRONA PARA ACOPLAR DATOS ENTRE UN TERMINAL (136) Y UN MODULO. LA INTERFAZ ASINCRONA DETERMINA DIRECTAMENTE Y REGULA LA VELOCIDAD DE LOS DATOS TRANSMITIDOS POR EL TERMINAL Y RECIBIDOS POR EL MODULO DE DATOS CON UNA PARTICIPACION MINIMA DE UN PROCESADOR (130) ASOCIADO CON DICHO MODULO. LA INTERFAZ ASINCRONA DETERMINA LA VELOCIDAD DE LOS DATOS TRANSMITIDOS CONFIGURANDO UN CIRCUITO CONTADOR (200) PARA MEDIR EL PERIODO DEL BIT INICIAL EN EL PRIMER CARACTER RECIBIDO SIEMPRE QUE LA VELOCIDAD DE LOS DATOS TRANSMITIDOS POR EL TERMINAL DEBA DETERMINARSE. A CONTINUACION SE AJUSTA A LA NUEVA VELOCIDAD DE TRANSMISION DETERMINADA Y RECIBE LOS BITS RESTANTES EN EL PRIMER CARACTER Y SUBSIGUIENTES A LA NUEVA VELOCIDAD. LA PARTICIPACION DEL PROCESADOR ES SOLO PARA REQUERIR DE LA INTERFAZ ASINCRONA QUE DETERMINE LA VELOCIDAD LA ENTRADA DE LOS DATOS Y SE AJUSTE A LA MISMA Y, UNA VEZ QUE ESTA VELOCIDAD HA SIDO DETERMINADA Y ASUMIDA, PROCESAR LOS CARACTERES RECUPERADOS Y ESTA NUEVA VELOCIDAD. MIENTRAS LA INTERFAZ ASINCRONA DETERMINA Y SE AJUSTA A LA VELOCIDAD DE LOS DATOS, EL PROCESADOR ESTA LIBRE PARA OTRAS TAREAS.
ES88301557T 1987-03-02 1988-02-24 Metodo y aparato para detectar una velocidad de transmision de datos. Expired - Lifetime ES2051295T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/020,483 US4761800A (en) 1987-03-02 1987-03-02 Method and apparatus for detecting a rate of data transmission

Publications (1)

Publication Number Publication Date
ES2051295T3 true ES2051295T3 (es) 1994-06-16

Family

ID=21798862

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88301557T Expired - Lifetime ES2051295T3 (es) 1987-03-02 1988-02-24 Metodo y aparato para detectar una velocidad de transmision de datos.

Country Status (10)

Country Link
US (1) US4761800A (es)
EP (1) EP0281307B1 (es)
JP (1) JPS63228844A (es)
KR (1) KR910003393B1 (es)
CN (1) CN1009893B (es)
AU (1) AU584002B2 (es)
CA (1) CA1287905C (es)
DE (1) DE3889142T2 (es)
ES (1) ES2051295T3 (es)
HK (1) HK1095A (es)

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US5228129A (en) * 1987-04-01 1993-07-13 Digital Equipment Corporation Synchronous communication interface for reducing the effect of data processor latency
US5267263A (en) * 1987-04-23 1993-11-30 Cq Computer Communications, Inc. Method and apparatus for interfacing synchronous data devices over an asynchronous communications channel
US5230071A (en) * 1987-08-13 1993-07-20 Digital Equipment Corporation Method for controlling the variable baud rate of peripheral devices
JPH0821914B2 (ja) * 1987-09-30 1996-03-04 岩崎通信機株式会社 終端装置
US5008902A (en) * 1989-01-25 1991-04-16 International Business Machines Corp. Automatic baud rate detection
JPH0357349A (ja) * 1989-07-26 1991-03-12 Fujitsu Ltd 回線速度検出方式
EP0419959B1 (de) * 1989-09-29 1996-04-03 Siemens Aktiengesellschaft Schaltungsanordnung zum Überprüfen der Einhaltung festgelegter Übertragungsbitraten bei der Übertragung von Nachrichtenzellen
US5072407A (en) * 1990-01-08 1991-12-10 Gandalf Technologies, Inc. Serial data rate detection method and apparatus
US5052025A (en) * 1990-08-24 1991-09-24 At&T Bell Laboratories Synchronous digital signal to asynchronous digital signal desynchronizer
DE69027531D1 (de) * 1990-09-28 1996-07-25 Ibm Datenübertragungseinheit (DCE) mit einer durch ein Verarbeitungsmittel gesteuerten Taktgeberanordnung
JPH04287458A (ja) * 1991-03-18 1992-10-13 Fujitsu Ltd シリアルインターフェースの伝送速度制御方式およびデータ伝送を行う装置
JP2641999B2 (ja) * 1991-05-10 1997-08-20 日本電気株式会社 データ・フォーマット検出回路
FI89432C (fi) * 1991-06-26 1993-09-27 Nokia Mobile Phones Ltd Genering av en klockfrekvens i ett smart card graenssnitt
FR2691317B1 (fr) * 1992-05-15 1995-05-19 Sgs Thomson Microelectronics Procédé d'adressage automatique dans une installation, notamment une installation domestique.
US5627858A (en) * 1992-07-20 1997-05-06 Telefonaktiebolaget L M Ericsson Multi-channel autobauding circuit
US5682554A (en) * 1993-01-15 1997-10-28 Silicon Graphics, Inc. Apparatus and method for handling data transfer between a general purpose computer and a cooperating processor
US5838748A (en) * 1993-02-24 1998-11-17 Star Dynamic Corp. Communication interface between computer and synchronous digital telephone line employing asynchronous data transmission format and having enhanced reliability
FR2704663B1 (fr) * 1993-04-29 1995-06-23 Sgs Thomson Microelectronics Procédé et dispositif de détermination de la composition d'un circuit intégré.
US5379327A (en) * 1993-07-13 1995-01-03 Multi-Tech Systems, Inc. Synchronous-to-asynchronous converter
US5416480A (en) * 1994-04-08 1995-05-16 Interactive Process Controls Corp. Analog interface circuits for process controllers and process monitors
JPH07321875A (ja) * 1994-05-27 1995-12-08 Mita Ind Co Ltd データ受信制御装置
US6061411A (en) * 1995-12-22 2000-05-09 Compaq Computer Corporation Method and apparatus for synchronizing a serial bus clock to a serial bus function clock
US5715176A (en) * 1996-01-23 1998-02-03 International Business Machines Corporation Method and system for locating a frame position in an MPEG data stream
US6049888A (en) * 1996-03-04 2000-04-11 Scanning Devices, Inc. Method and apparatus for automatic communication configuration
US5835388A (en) * 1996-03-26 1998-11-10 Timex Corporation Apparatus and method for optical transmission of serial data using a serial communications port
US5903775A (en) * 1996-06-06 1999-05-11 International Business Machines Corporation Method for the sequential transmission of compressed video information at varying data rates
JP2954048B2 (ja) * 1996-11-19 1999-09-27 山形日本電気株式会社 ボーレート生成回路
US6084934A (en) * 1997-03-06 2000-07-04 International Business Machines Corporation Natural throttling of data transfer across asynchronous boundaries
KR19990010391A (ko) * 1997-07-16 1999-02-18 윤종용 휴대폰과 외부장치간의 데이터 전송률을 중재하는 장치 및 방법
US6198785B1 (en) 1997-09-29 2001-03-06 Lucent Technologies Inc. Autobaud rate detection and adjustment
US6097716A (en) * 1997-12-12 2000-08-01 Lucent Technologies Inc. Rate detection for multi-rate communications
US6683590B1 (en) 1998-03-20 2004-01-27 The University Of Hong Kong Tricolor LED display system having audio output
US7031333B1 (en) * 1998-06-02 2006-04-18 Cisco Technology, Inc. Reduced pin count media independent interface
US6385208B1 (en) * 1998-06-02 2002-05-07 Cisco Technology, Inc. Serial media independent interface
US6816934B2 (en) * 2000-12-22 2004-11-09 Hewlett-Packard Development Company, L.P. Computer system with registered peripheral component interconnect device for processing extended commands and attributes according to a registered peripheral component interconnect protocol
DE10121912C2 (de) * 2001-05-05 2003-05-22 Phoenix Contact Gmbh & Co Verfahren zur zentralen Datenraten-Einstellung in einer Datenübertragungsanlage sowie Vorrichtung zur zentralen Datenraten-Einstellung
US6944248B2 (en) * 2001-05-17 2005-09-13 Bluebrook Associates Llc Data rate calibration for asynchronous serial communications
DE10232988B4 (de) * 2002-07-19 2007-11-22 Infineon Technologies Ag Verfahren und Vorrichtung zur getakteten Ausgabe asynchron empfangener Digitalsignale
US7062003B2 (en) * 2002-09-27 2006-06-13 Texas Instruments Incorporated Self-tuning baud rate generator for UART applications
JP4198089B2 (ja) * 2004-05-21 2008-12-17 富士通マイクロエレクトロニクス株式会社 通信システム
GB0414793D0 (en) * 2004-07-01 2004-08-04 Ttp Communications Ltd Determining characteristics of communications signals
ES2752742T3 (es) * 2011-01-27 2020-04-06 Mitsubishi Electric Corp Dispositivo de interfaz de comunicación
JP2014056374A (ja) * 2012-09-12 2014-03-27 Renesas Electronics Corp 情報処理装置
CN104459369B (zh) * 2014-10-20 2017-05-17 北京工业大学 测量电信号在金属导线中传输速度的方法

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US4001504A (en) * 1975-06-09 1977-01-04 International Business Machines Corporation Automatic terminal data rate selection
JPS5250101A (en) * 1975-10-20 1977-04-21 Toshiba Corp Start-stop synchronism control system
US4210777A (en) * 1978-06-15 1980-07-01 Frederick Electronics Corp. Pseudo-transparent stop bit generator
JPS57103546A (en) * 1980-12-18 1982-06-28 Nec Corp Baud rate setting system
JPS61134145A (ja) * 1984-12-05 1986-06-21 Toshiba Corp 通信速度設定装置
JPS61206339A (ja) * 1985-03-11 1986-09-12 Oki Electric Ind Co Ltd インタフエ−ス速度変換方式
JPS6229238A (ja) * 1985-07-29 1987-02-07 Mitsubishi Electric Corp 調歩同期式シリアルデ−タの送受信装置
JPS6245255A (ja) * 1985-08-22 1987-02-27 Nec Corp デ−タ受信方式

Also Published As

Publication number Publication date
AU1254688A (en) 1988-09-22
KR910003393B1 (ko) 1991-05-28
JPS63228844A (ja) 1988-09-22
CN1009893B (zh) 1990-10-03
CA1287905C (en) 1991-08-20
EP0281307B1 (en) 1994-04-20
DE3889142T2 (de) 1994-09-15
KR880012044A (ko) 1988-10-31
EP0281307A2 (en) 1988-09-07
US4761800A (en) 1988-08-02
DE3889142D1 (de) 1994-05-26
CN88101112A (zh) 1988-09-28
AU584002B2 (en) 1989-05-11
HK1095A (en) 1995-01-13
EP0281307A3 (en) 1990-10-31

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