BR0014187A - Receptor ótico digital para sistemas de televisão a cabo - Google Patents
Receptor ótico digital para sistemas de televisão a caboInfo
- Publication number
- BR0014187A BR0014187A BR0014187-9A BR0014187A BR0014187A BR 0014187 A BR0014187 A BR 0014187A BR 0014187 A BR0014187 A BR 0014187A BR 0014187 A BR0014187 A BR 0014187A
- Authority
- BR
- Brazil
- Prior art keywords
- digital
- cable television
- digital optical
- receiver
- television systems
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computing Systems (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optical Communication System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
"RECEPTOR óTICO DIGITAL PARA SISTEMAS DE TELEVISãO A CABO". Sistema de televisão a cabo (400) que inclui um transmissor (200) para gerar um sinal ótico digital e um receptor (201) para receber tal sinal ótico digital e convertê-lo em um sinal analógico. O receptor (201) inclui um filtro digital (300) posicionado entre um desserializador (225) e um conversor digital/analógico (230), cujo filtro digital condiciona o sinal elétrico digital recebido do desserializador (225). O filtro digital (300) é utilizado como um bloco digital de eliminação de ruído de modo a melhorar a qualidade dos sinais no percurso inverso, que retornam para a estação principal terminal (105) do sistema de televisão a cabo (400).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/401,477 US6433906B1 (en) | 1999-09-22 | 1999-09-22 | Digital optical receiver for cable television systems |
PCT/US2000/025592 WO2001028098A2 (en) | 1999-09-22 | 2000-09-18 | Digital optical receiver for cable television systems |
Publications (2)
Publication Number | Publication Date |
---|---|
BR0014187A true BR0014187A (pt) | 2002-05-21 |
BRPI0014187B1 BRPI0014187B1 (pt) | 2015-11-03 |
Family
ID=23587928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0014187A BRPI0014187B1 (pt) | 1999-09-22 | 2000-09-18 | receptor ótico digital para sistemas de televisão a cabo |
Country Status (3)
Country | Link |
---|---|
US (1) | US6433906B1 (pt) |
BR (1) | BRPI0014187B1 (pt) |
WO (1) | WO2001028098A2 (pt) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7257328B2 (en) * | 1999-12-13 | 2007-08-14 | Finisar Corporation | System and method for transmitting data on return path of a cable television system |
US7222358B2 (en) * | 1999-12-13 | 2007-05-22 | Finisar Corporation | Cable television return link system with high data-rate side-band communication channels |
US7245651B1 (en) * | 1999-12-20 | 2007-07-17 | Intel Corporation | Dual mode filter for mobile telecommunications |
WO2001065732A2 (en) * | 2000-02-29 | 2001-09-07 | General Instrument Corporation | Application of digital processing scheme for enhanced cable television network performance |
WO2001095626A2 (en) * | 2000-06-02 | 2001-12-13 | General Instrument Corporation | A system for improved return path performance for digital communication signals |
US6757910B1 (en) * | 2000-06-08 | 2004-06-29 | C-Cor.Net Corporation | Adaptive filter for reducing ingress noise in CATV return signals |
US6824324B2 (en) * | 2001-12-14 | 2004-11-30 | Hewlett-Packard Development Company, L.P. | Technique for providing a pivot structure that facilitates the rapid formation of pivot couplings between components |
US7971225B2 (en) * | 2002-02-08 | 2011-06-28 | Finisar Corporation | Bandpass component decimation and transmission of data in cable television digital return path |
US7725036B2 (en) | 2002-02-12 | 2010-05-25 | Finisar Corporation | Efficient transmission of digital return path data in cable television return path |
US8156535B2 (en) * | 2002-02-12 | 2012-04-10 | Finsar Corporation | Data rate compression device for cable television return path using bandpass puncturing |
US7751718B2 (en) * | 2002-02-12 | 2010-07-06 | Finisar Corporation | Efficient transmission of digital return path data in cable television return path |
US7359447B2 (en) * | 2002-02-19 | 2008-04-15 | Finisar Corporation | Asynchronous digital signal combiner and method of combining asynchronous digital signals in cable television return path |
US7689128B2 (en) * | 2002-10-30 | 2010-03-30 | Finisar Corporation | Return path transmitter with extended digital processing circuitry |
US7519297B2 (en) | 2002-11-08 | 2009-04-14 | Finisar Corporation | Cable television system with separate radio frequency hub and ethernet hub |
US20040103440A1 (en) * | 2002-11-25 | 2004-05-27 | General Instrument Corporation | Transmitter in a digital return link for use in an HFC network |
WO2005057816A1 (en) * | 2003-12-08 | 2005-06-23 | Siemens Aktiengesellschaft | Modulator and demodulator for passive optical network |
US8032916B2 (en) * | 2004-05-12 | 2011-10-04 | Finisar Corporation | Single master clock control of Ethernet data transfer over both a cable TV return path and an Ethernet forward path |
US7765576B2 (en) * | 2004-05-12 | 2010-07-27 | Finsiar Corporation | Changing communication mode in a CATV pathway using mute commands |
US7519078B2 (en) * | 2004-05-12 | 2009-04-14 | Finisar Corporation | Automated ethernet configuration of CATV network |
US20070022444A1 (en) * | 2005-07-20 | 2007-01-25 | John Santhoff | Software definable transceiver apparatus and method |
US8761604B2 (en) * | 2011-04-08 | 2014-06-24 | Renaud Lavoie | Small form factor pluggable unit with signal conversion capabilities |
US8917996B2 (en) * | 2012-06-13 | 2014-12-23 | Raytheon Company | Simplified serial data over optical fiber for remote receiver/sensor applications |
US20150003828A1 (en) * | 2013-06-28 | 2015-01-01 | Cable Television Laboratories, Inc. | Digital Fiber Link Transporting Multiple Analog Bands for Agile Conversion |
CN106604366A (zh) * | 2015-10-16 | 2017-04-26 | 无锡华赛伟业传感信息科技有限公司 | 一种无线网卡 |
WO2020057733A1 (en) * | 2018-09-18 | 2020-03-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Communication signal multiplexing and demultiplexing apparatus and methods |
EP4369319A1 (en) | 2022-11-11 | 2024-05-15 | Caretronic d.o.o. | A household emergency call device |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0714170B2 (ja) * | 1983-11-30 | 1995-02-15 | 富士通株式会社 | 搬送波再生回路 |
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 |
US5426527A (en) * | 1991-11-12 | 1995-06-20 | Alliant Techsystems Inc. | System for transmitting multiple signals across a single fiber optic channel |
US5627879A (en) | 1992-09-17 | 1997-05-06 | Adc Telecommunications, Inc. | Cellular communications system with centralized base stations and distributed antenna units |
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 |
US5684799A (en) | 1995-03-28 | 1997-11-04 | Bell Atlantic Network Services, Inc. | Full service network having distributed architecture |
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 |
CA2222603C (en) | 1995-06-22 | 2002-11-26 | Scientific-Atlanta, Inc. | Hybrid fiber coax communications system |
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 |
US5915205A (en) | 1996-01-19 | 1999-06-22 | Texas Instruments Incorporated | Ingress noise cancellation for upstream signals on a cable television system using an antenna to determine local noise |
SE515218C2 (sv) | 1996-02-19 | 2001-07-02 | Ericsson Telefon Ab L M | Anordning och förfarande vid kabelTVnät |
GB2312118B (en) * | 1996-04-11 | 2000-03-01 | Sony Uk Ltd | Dual standard video signal processor |
JPH09284233A (ja) | 1996-04-11 | 1997-10-31 | Toyo Commun Equip Co Ltd | 光伝送中継器 |
US5878325A (en) | 1996-07-12 | 1999-03-02 | At&T Corp | Hybrid fiber-coax system having at least one digital fiber node |
DE19635989A1 (de) | 1996-09-05 | 1998-03-12 | Sel Alcatel Ag | Sendeeinrichtung zur optischen Übertragung von analogen elektrischen Signalen und digitales Übertragungssystem |
US5892865A (en) | 1997-06-17 | 1999-04-06 | Cable Television Laboratories, Inc. | Peak limiter for suppressing undesirable energy in a return path of a bidirectional cable network |
US6654958B1 (en) | 1997-12-16 | 2003-11-25 | Koninklijke Philips Electronics N.V. | Reference signal generator for return path aligning |
EP1197016A2 (en) | 1999-04-23 | 2002-04-17 | General Instrument Corporation | Hfc return path system using digital conversion and transport |
-
1999
- 1999-09-22 US US09/401,477 patent/US6433906B1/en not_active Expired - Lifetime
-
2000
- 2000-09-18 WO PCT/US2000/025592 patent/WO2001028098A2/en active Search and Examination
- 2000-09-18 BR BRPI0014187A patent/BRPI0014187B1/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US6433906B1 (en) | 2002-08-13 |
WO2001028098A2 (en) | 2001-04-19 |
BRPI0014187B1 (pt) | 2015-11-03 |
WO2001028098A3 (en) | 2001-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25D | Requested change of name of applicant approved |
Owner name: SCIENTIFIC-ATLANTA, LLC (US) |
|
B25A | Requested transfer of rights approved |
Owner name: CISCO TECHNOLOGY, INC. (US) |
|
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/11/2015, OBSERVADAS AS CONDICOES LEGAIS. |
|
B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time | ||
B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |