WO2001097420A3 - Multiplexing digital communication system - Google Patents

Multiplexing digital communication system Download PDF

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Publication number
WO2001097420A3
WO2001097420A3 PCT/US2001/018279 US0118279W WO0197420A3 WO 2001097420 A3 WO2001097420 A3 WO 2001097420A3 US 0118279 W US0118279 W US 0118279W WO 0197420 A3 WO0197420 A3 WO 0197420A3
Authority
WO
WIPO (PCT)
Prior art keywords
input signals
digital
signal
clock
communication system
Prior art date
Application number
PCT/US2001/018279
Other languages
French (fr)
Other versions
WO2001097420A2 (en
Inventor
Forrest M Farhan
Original Assignee
Scientific Atlanta
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 Scientific Atlanta filed Critical Scientific Atlanta
Priority to BRPI0111533-2A priority Critical patent/BR0111533A/en
Publication of WO2001097420A2 publication Critical patent/WO2001097420A2/en
Publication of WO2001097420A3 publication Critical patent/WO2001097420A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1605—Fixed allocated frame structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0008—Modulated-carrier systems arrangements for allowing a transmitter or receiver to use more than one type of modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Optical Communication System (AREA)

Abstract

A transmitter (501) for use in a communication system (500) includes clock input for receiving a clock signal and input ports (503, 510, 513) coupled to external signal sources for receiving input signals that are synchronously modulated at modulation frequencies rationally and fractionally related to the clock frequency and to each other. Additionally, the clock frequency should be greater than any of the modulation frequencies. An analog-to-digital converter (505) receives the analog input signals and converts them to a digital format, and a multiplexer (515) then processes the digital input signals and signals from the converter (505) to generate a single serial output signal. An output port of the transmitter (501) then transmits the single serial output signal as a digital signal having a bit rate equivalent to the number of input signals multiplied by the sampling frequency, plus additional overhead for optional framing and error correction.
PCT/US2001/018279 2000-06-09 2001-06-06 Multiplexing digital communication system WO2001097420A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0111533-2A BR0111533A (en) 2000-06-09 2001-06-06 digital communication multiplexing system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/590,433 2000-06-09
US09/590,433 US6667994B1 (en) 2000-06-09 2000-06-09 Multiplexing digital communication system

Publications (2)

Publication Number Publication Date
WO2001097420A2 WO2001097420A2 (en) 2001-12-20
WO2001097420A3 true WO2001097420A3 (en) 2002-12-27

Family

ID=24362253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/018279 WO2001097420A2 (en) 2000-06-09 2001-06-06 Multiplexing digital communication system

Country Status (3)

Country Link
US (1) US6667994B1 (en)
BR (1) BR0111533A (en)
WO (1) WO2001097420A2 (en)

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US7593432B2 (en) * 2001-03-31 2009-09-22 Redback Networks Inc. Method and apparatus for deframing signals
US6950446B2 (en) * 2001-03-31 2005-09-27 Redback Networks Inc. Method and apparatus for simultaneously sync hunting signals
US7061939B1 (en) 2001-06-13 2006-06-13 Juniper Networs, Inc. Source synchronous link with clock recovery and bit skew alignment
GB0128965D0 (en) * 2001-12-04 2002-01-23 Uniline Safety Systems Ltd Supporting bracket assembly for a cable or the like
US7167476B1 (en) 2002-04-12 2007-01-23 Juniper Networks, Inc. Systems and methods for routing data in a network device
US7558525B2 (en) * 2002-12-10 2009-07-07 Onlive, Inc. Mass storage repository for a wireless network
US7684752B2 (en) * 2002-12-10 2010-03-23 Onlive, Inc. Wireless network providing distributed video / data services
US7849491B2 (en) * 2002-12-10 2010-12-07 Onlive, Inc. Apparatus and method for wireless video gaming
US7590084B2 (en) * 2003-02-14 2009-09-15 Onlive, Inc. Self-configuring, adaptive, three-dimensional, wireless network
US7593361B2 (en) * 2003-02-14 2009-09-22 Onlive, Inc. Method of operation for a three-dimensional, wireless network
US8761604B2 (en) * 2011-04-08 2014-06-24 Renaud Lavoie Small form factor pluggable unit with signal conversion capabilities
CN105245278B (en) * 2015-10-27 2017-08-25 广东省科技基础条件平台中心 A kind of synchronous reception device of visible light communication subcarrier multiplexing clock
US10505661B2 (en) * 2016-01-25 2019-12-10 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatus for multiplexing signals
EP3531651B8 (en) * 2018-02-26 2023-03-08 Rohde & Schwarz GmbH & Co. KG System and method for transmitting time-sensitive analogue signals and digital data
US11470282B2 (en) * 2020-12-09 2022-10-11 Waymo Llc Systems, apparatus, and methods for transmitting image data

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US4061577A (en) * 1976-08-18 1977-12-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fiber optic multiplex optical transmission system
US4888768A (en) * 1987-07-06 1989-12-19 The Grass Valley Group, Inc. Frame format for video codec
EP0359205A2 (en) * 1988-09-14 1990-03-21 Gte Laboratories Incorporated Optical communication system for simultaneous transmission of a baseband digital signal and multiple microwave subcarriers
EP0512642A1 (en) * 1991-05-08 1992-11-11 ALCATEL BELL Naamloze Vennootschap Optical transceiver arrangement
US5351148A (en) * 1993-01-25 1994-09-27 Matsushita Electric Industrial Co., Ltd. Optical transmission system
EP0767555A2 (en) * 1995-10-02 1997-04-09 AT&T Corp. Method and apparatus for reducing data delay within a multi-channel shared-circuit data processing environment
US5748348A (en) * 1994-10-31 1998-05-05 Alcatel N.V. Optical communication system for cable-television signals and for subscriber-assigned signals

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US3840891A (en) * 1972-12-27 1974-10-08 Ibm Time duration modulation and demodulation for storage or transmission of digital data
US4558445A (en) * 1984-04-18 1985-12-10 The United States Of America As Represented By The Secretary Of The Air Force Applique rate converter
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Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
US4061577A (en) * 1976-08-18 1977-12-06 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Fiber optic multiplex optical transmission system
US4888768A (en) * 1987-07-06 1989-12-19 The Grass Valley Group, Inc. Frame format for video codec
EP0359205A2 (en) * 1988-09-14 1990-03-21 Gte Laboratories Incorporated Optical communication system for simultaneous transmission of a baseband digital signal and multiple microwave subcarriers
EP0512642A1 (en) * 1991-05-08 1992-11-11 ALCATEL BELL Naamloze Vennootschap Optical transceiver arrangement
US5351148A (en) * 1993-01-25 1994-09-27 Matsushita Electric Industrial Co., Ltd. Optical transmission system
US5748348A (en) * 1994-10-31 1998-05-05 Alcatel N.V. Optical communication system for cable-television signals and for subscriber-assigned signals
EP0767555A2 (en) * 1995-10-02 1997-04-09 AT&T Corp. Method and apparatus for reducing data delay within a multi-channel shared-circuit data processing environment

Non-Patent Citations (1)

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Title
BALLART R ET AL: "RESTRUCTURED DS3 FORMAT FOR SYNCHRONOUS TRANSMISSION (SYNTRAN)", COMMUNICATIONS IN THE INFORMATION AGE. ATLANTA, NOV. 26 - 29, 1984, PROCEEDINGS OF THE GLOBAL TELECOMMUNICATIONS CONFERENCE AND EXHIBITION(GLOBECOM), NEW YORK, IEEE, US, vol. 2, 1984, pages 1036 - 1042, XP000806868 *

Also Published As

Publication number Publication date
US6667994B1 (en) 2003-12-23
WO2001097420A2 (en) 2001-12-20
BR0111533A (en) 2006-05-09

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