BR0111533A - sistema de multiplexação de comunicação digital - Google Patents
sistema de multiplexação de comunicação digitalInfo
- Publication number
- BR0111533A BR0111533A BRPI0111533-2A BR0111533A BR0111533A BR 0111533 A BR0111533 A BR 0111533A BR 0111533 A BR0111533 A BR 0111533A BR 0111533 A BR0111533 A BR 0111533A
- Authority
- BR
- Brazil
- Prior art keywords
- digital
- input signals
- signal
- clock
- input
- Prior art date
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
"SISTEMA DE MULTIPLEXAçãO DE COMUNICAçãO DIGITAL". Um transmissor (501) para uso em um sistema de comunicação (500) inclui entrada de clock para receber um sinal de clock e portas de entrada (503, 510, 513) acopladas a fontes externas de sinais para receber sinais de entrada que são modulados de modo síncrono em freqüências de modulação relacionadas de modo racional e fracionário com a freqüência de clock e entre si. Adicionalmente, a freqüência de clock deve ser maior que qualquer uma das freqüências de modulação. Um conversor analógico/digital (505) recebe os sinais de entrada analógicos e converte-os em um formato digital e um multiplexador (515) processa em seguida os sinais de entrada digitais e sinais do conversor (505) para gerar um único sinal de saída serial. Uma porta de saída do transmissor (501) transmite em seguida o único sinal de saída serial como um sinal digital que tem uma taxa de bits equivalente ao número de sinais de entrada multiplicado pela freqüência de amostragem, mais suplementação adicional para enquadramento ótimo e correção de erro.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/590,433 US6667994B1 (en) | 2000-06-09 | 2000-06-09 | Multiplexing digital communication system |
PCT/US2001/018279 WO2001097420A2 (en) | 2000-06-09 | 2001-06-06 | Multiplexing digital communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
BR0111533A true BR0111533A (pt) | 2006-05-09 |
Family
ID=24362253
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0111533-2A BR0111533A (pt) | 2000-06-09 | 2001-06-06 | sistema de multiplexação de comunicação digital |
Country Status (3)
Country | Link |
---|---|
US (1) | US6667994B1 (pt) |
BR (1) | BR0111533A (pt) |
WO (1) | WO2001097420A2 (pt) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6950446B2 (en) * | 2001-03-31 | 2005-09-27 | Redback Networks Inc. | Method and apparatus for simultaneously sync hunting signals |
US7593432B2 (en) * | 2001-03-31 | 2009-09-22 | Redback Networks Inc. | Method and apparatus for deframing 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 |
US7849491B2 (en) * | 2002-12-10 | 2010-12-07 | Onlive, Inc. | Apparatus and method for wireless video gaming |
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 |
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 (zh) * | 2015-10-27 | 2017-08-25 | 广东省科技基础条件平台中心 | 一种可见光通信副载波复用时钟同步接收装置 |
US10505661B2 (en) * | 2016-01-25 | 2019-12-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatus for multiplexing signals |
EP3531651B8 (de) * | 2018-02-26 | 2023-03-08 | Rohde & Schwarz GmbH & Co. KG | System und verfahren zur übertragung zeitkritischer analoger signale und digitaler daten |
US11470282B2 (en) * | 2020-12-09 | 2022-10-11 | Waymo Llc | Systems, apparatus, and methods for transmitting image data |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696403A (en) * | 1970-11-25 | 1972-10-03 | Gordon Eng Co | Low level conversion system |
US3840891A (en) * | 1972-12-27 | 1974-10-08 | Ibm | Time duration modulation and demodulation for storage or transmission of digital data |
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 |
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 |
US4763317A (en) | 1985-12-13 | 1988-08-09 | American Telephone And Telegraph Company, At&T Bell Laboratories | Digital communication network architecture for providing universal information services |
GB8727846D0 (en) | 1987-11-27 | 1987-12-31 | British Telecomm | Optical communications network |
US4888768A (en) | 1987-07-06 | 1989-12-19 | The Grass Valley Group, Inc. | Frame format for video codec |
EP0359205A3 (en) | 1988-09-14 | 1991-11-13 | Gte Laboratories Incorporated | Optical communication system for simultaneous transmission of a baseband digital signal and multiple microwave subcarriers |
BE1004813A3 (nl) | 1991-05-08 | 1993-02-02 | Bell Telephone Mfg | Optische zender/ontvangerinrichting. |
US5627879A (en) | 1992-09-17 | 1997-05-06 | Adc Telecommunications, Inc. | Cellular communications system with centralized base stations and distributed antenna units |
JPH06224852A (ja) | 1993-01-25 | 1994-08-12 | Matsushita Electric Ind Co Ltd | 光伝送方式 |
US5790523A (en) | 1993-09-17 | 1998-08-04 | Scientific-Atlanta, Inc. | Testing facility for a broadband communications system |
DE4438942A1 (de) | 1994-10-31 | 1996-05-02 | Sel Alcatel Ag | Optisches Nachrichtenübertragungssystem für Kabelfernsehsignale und für teilnehmerindividuelle Signale |
US5544161A (en) | 1995-03-28 | 1996-08-06 | Bell Atlantic Network Services, Inc. | ATM packet demultiplexer for use in full service network having distributed architecture |
US5684799A (en) | 1995-03-28 | 1997-11-04 | Bell Atlantic Network Services, Inc. | Full service network having distributed architecture |
DE69638226D1 (de) | 1995-06-22 | 2010-09-16 | Scientific Atlanta | Gemeinsames faser/coax übertragungssystem |
US5790072A (en) | 1995-10-02 | 1998-08-04 | Lucent Technologies, Inc. | Method and apparatus for reducing data delay within a multi-channel shared-circuit date processing environment |
US5790533A (en) | 1995-10-27 | 1998-08-04 | Motorola, Inc. | Method and apparatus for adaptive RF power control of cable access units |
US5966636A (en) | 1995-11-29 | 1999-10-12 | Motorola, Inc. | Method and apparatus for multiple access over randomized slots with collision detection in a cable telephony system |
US5878325A (en) | 1996-07-12 | 1999-03-02 | At&T Corp | Hybrid fiber-coax system having at least one digital fiber node |
JP2000152280A (ja) * | 1998-11-06 | 2000-05-30 | Matsushita Electric Ind Co Ltd | 撮像システム |
KR20020032422A (ko) * | 1999-04-23 | 2002-05-03 | 션 엘. 맥클린톡 | 디지털 변환 및 전송을 사용하는 hfc 반환 경로 시스템 |
-
2000
- 2000-06-09 US US09/590,433 patent/US6667994B1/en not_active Expired - Lifetime
-
2001
- 2001-06-06 BR BRPI0111533-2A patent/BR0111533A/pt unknown
- 2001-06-06 WO PCT/US2001/018279 patent/WO2001097420A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US6667994B1 (en) | 2003-12-23 |
WO2001097420A3 (en) | 2002-12-27 |
WO2001097420A2 (en) | 2001-12-20 |
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