IL99558A - התקן ושיטה לשידור ספרתי של אותו מודם בפס-קול - Google Patents

התקן ושיטה לשידור ספרתי של אותו מודם בפס-קול

Info

Publication number
IL99558A
IL99558A IL9955891A IL9955891A IL99558A IL 99558 A IL99558 A IL 99558A IL 9955891 A IL9955891 A IL 9955891A IL 9955891 A IL9955891 A IL 9955891A IL 99558 A IL99558 A IL 99558A
Authority
IL
Israel
Prior art keywords
signal
symbol rate
modem
baseband digital
digital signal
Prior art date
Application number
IL9955891A
Other languages
English (en)
Other versions
IL99558A0 (en
Original Assignee
American Telephone & Telegraph
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 & Telegraph filed Critical American Telephone & Telegraph
Publication of IL99558A0 publication Critical patent/IL99558A0/xx
Publication of IL99558A publication Critical patent/IL99558A/he

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
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H04J3/0632—Synchronisation of packets and cells, e.g. transmission of voice via a packet network, circuit emulation service [CES]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
    • H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Communication Control (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
IL9955891A 1990-09-27 1991-09-25 התקן ושיטה לשידור ספרתי של אותו מודם בפס-קול IL99558A (he)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/589,297 US5123033A (en) 1990-09-27 1990-09-27 Extraction of an exact symbol rate as applied to bandwidth compression of modem signals through demodulation and remodulation

Publications (2)

Publication Number Publication Date
IL99558A0 IL99558A0 (en) 1992-08-18
IL99558A true IL99558A (he) 1994-10-07

Family

ID=24357424

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9955891A IL99558A (he) 1990-09-27 1991-09-25 התקן ושיטה לשידור ספרתי של אותו מודם בפס-קול

Country Status (6)

Country Link
US (1) US5123033A (he)
EP (1) EP0478207B1 (he)
JP (1) JPH077971B2 (he)
AU (1) AU627667B2 (he)
DE (1) DE69118638T2 (he)
IL (1) IL99558A (he)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5513212A (en) * 1993-11-15 1996-04-30 At&T Corp. Conversion of a fax modulation to a data modulation
US5752199A (en) * 1995-12-18 1998-05-12 Paradyne Corporation Method and apparatus for sending faxes over analog cellular
US5953647A (en) * 1995-12-18 1999-09-14 Paradyne Corporation Technique for sending faxes over cellular communications channels
US5920402A (en) * 1995-12-18 1999-07-06 Paradyne Corporation Use of compression to improve the sending of faxes over analog cellular
US5920825A (en) * 1995-12-18 1999-07-06 Paradyne Corporation Method and apparatus for bypassing a cellular modem pool during a fax transmission
US6614849B1 (en) * 1999-10-25 2003-09-02 Free Systems Pte. Ltd. Wireless infrared digital audio receiving system
US6510182B1 (en) * 1999-10-25 2003-01-21 Freesystems Pte. Ltd. Wireless infrared digital audio system
US6741659B1 (en) * 1999-10-25 2004-05-25 Freesystems Pte. Ltd. Wireless infrared digital audio transmitting system
US7130337B2 (en) 2001-07-02 2006-10-31 Phonex Broadband Corporation Method and system for sample and recreation synchronization for digital transmission of analog modem signal
JP2006012301A (ja) * 2004-06-25 2006-01-12 Sony Corp 光記録再生方法、光ピックアップ装置、光記録再生装置、光記録媒体とその製造方法及び半導体レーザ装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3534264A (en) * 1966-04-15 1970-10-13 Ibm Adaptive digital communication system
US3594651A (en) * 1969-10-15 1971-07-20 Communications Satellite Corp Quadriphase modem
NL7408243A (nl) * 1974-06-20 1975-12-23 Philips Nv Transmissiesysteem voor pulssignalen van vaste klokfrequentie.
US4455663A (en) * 1981-11-19 1984-06-19 Novation, Inc. Full duplex modems and synchronizing methods and apparatus therefor
FR2525055A1 (fr) * 1982-04-09 1983-10-14 Trt Telecom Radio Electr Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede
GB8429921D0 (en) * 1984-11-27 1985-01-03 British Telecomm Flexible regenerator
NL8600889A (nl) * 1986-04-09 1987-11-02 Philips Nv Inrichting voor het terugwinnen van kanaalklokinformatie bij synchrone informatietransmissie en een inrichting voor het terugwinnen van de informatie voorzien van een dergelijke inrichting.
US4821286A (en) * 1986-05-27 1989-04-11 American Telephone And Telegraph Company Quaternary signal regenerator
US4815137A (en) * 1986-11-06 1989-03-21 American Telephone And Telegraph Company Voiceband signal classification
US4887280A (en) * 1986-12-29 1989-12-12 Hughes Aircraft Company System for detecting the presence of a signal of a particular data rate
CA1288878C (en) * 1988-08-15 1991-09-10 John D. Mcnicol Timing and carrier recovery in tdma without preamable sequence

Also Published As

Publication number Publication date
EP0478207A3 (en) 1992-10-07
EP0478207B1 (en) 1996-04-10
JPH04259154A (ja) 1992-09-14
EP0478207A2 (en) 1992-04-01
US5123033A (en) 1992-06-16
AU627667B2 (en) 1992-08-27
DE69118638D1 (de) 1996-05-15
DE69118638T2 (de) 1996-11-21
AU8372491A (en) 1992-04-02
JPH077971B2 (ja) 1995-01-30
IL99558A0 (en) 1992-08-18

Similar Documents

Publication Publication Date Title
US4674103A (en) Method and arrangement for detecting the presence of a training signal in a modem receiver
KR960016644B1 (ko) 전송로 지연 측정 장치, 동시전송 시스템 및 통신 수신기
CA2146801C (en) Timing recovery for variable bit-rate video on asynchronous transfer mode (atm) networks
JP2904493B2 (ja) データの無線伝送において迅速な基準の補捉および位相誤差補償を行なう装置および方法
EP0833476B1 (en) Fast resynchronization system for high-speed data transmission
JPS6147454B2 (he)
JPH0964933A (ja) キャリア同期ユニット
US5123033A (en) Extraction of an exact symbol rate as applied to bandwidth compression of modem signals through demodulation and remodulation
JP2003509954A (ja) 通信ネットワークを介して結合された通信システムコンポーネントの同期合わせ装置
US5903612A (en) Method to synchronize data and a transmitter and a receiver realizing said method
EP0047303B1 (en) Method and apparatus for demodulating quadriphase differential transmissions
US3943448A (en) Apparatus and method for synchronizing a digital modem using a random multilevel data signal
US5541967A (en) Fast symbol synchronization for use in conditioning a receiving modem
EP0532696A1 (en) METHOD AND ARRANGEMENT FOR CLOCK RECOVERY IN A DATA TRANSMISSION SYSTEM.
JP2003534713A (ja) デジタル受信器のサンプリングタイミングを制御する方法およびデバイス
US7424080B1 (en) Method and system for providing jitter-free transmissions for demodulated data stream
US7372930B2 (en) Method to synchronize data and a transmitter and a receiver realizing said method
US5451944A (en) Sampling frequency converter by linear interpolation
US20070053384A1 (en) Methods and systems for reducing waiting-time jitter
JP3047627B2 (ja) 同期維持装置
Plank et al. Synchronization of time-of-flight 3d sensors for optical communication
EP0478205B1 (en) Apparatus for digital transmission of facsimile calls using echo protection tone detection and regeneration
JP3064831B2 (ja) シンボル識別点検出装置
Daeipour Clock compensation in a data/fax relay system
JPH1188305A (ja) 通信装置

Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed