BR8505689A - Sistema de comutacao de canal em um circuito de transmissao de radio digital - Google Patents

Sistema de comutacao de canal em um circuito de transmissao de radio digital

Info

Publication number
BR8505689A
BR8505689A BR8505689A BR8505689A BR8505689A BR 8505689 A BR8505689 A BR 8505689A BR 8505689 A BR8505689 A BR 8505689A BR 8505689 A BR8505689 A BR 8505689A BR 8505689 A BR8505689 A BR 8505689A
Authority
BR
Brazil
Prior art keywords
transmission circuit
switching system
radio transmission
channel switching
digital radio
Prior art date
Application number
BR8505689A
Other languages
English (en)
Inventor
Hideaki Moritomo
Hiromi Hashimoto
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Publication of BR8505689A publication Critical patent/BR8505689A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
BR8505689A 1984-11-05 1985-11-05 Sistema de comutacao de canal em um circuito de transmissao de radio digital BR8505689A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59232711A JPS61111037A (ja) 1984-11-05 1984-11-05 回線切替方式

Publications (1)

Publication Number Publication Date
BR8505689A true BR8505689A (pt) 1986-08-12

Family

ID=16943581

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8505689A BR8505689A (pt) 1984-11-05 1985-11-05 Sistema de comutacao de canal em um circuito de transmissao de radio digital

Country Status (8)

Country Link
US (1) US4686675A (pt)
EP (1) EP0180943B1 (pt)
JP (1) JPS61111037A (pt)
CN (1) CN1004252B (pt)
AU (1) AU573708B2 (pt)
BR (1) BR8505689A (pt)
CA (1) CA1238724A (pt)
DE (1) DE3583917D1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60208134A (ja) * 1984-04-02 1985-10-19 Nec Corp 無線通信方式
CA1249633A (en) * 1985-12-11 1989-01-31 Hideaki Morimoto Channel switching system
DE3788532T2 (de) * 1986-03-31 1994-04-21 Nippon Electric Co Funkübertragungssystem mit vereinfachter Fehlerkorrekturschaltung und schneller Kanalumschaltung.
JPS62274946A (ja) * 1986-05-23 1987-11-28 Fujitsu Ltd 無瞬断切替回路
JPS6370632A (ja) * 1986-09-11 1988-03-30 Nec Corp 回線切替方式
JPS6377235A (ja) * 1986-09-20 1988-04-07 Fujitsu Ltd デイジタル通信システムの切替方式
JPH084257B2 (ja) * 1987-10-02 1996-01-17 日本電気株式会社 （１＋ｎ）ヒットレス回線切替装置
EP0315970B1 (en) * 1987-11-10 1994-08-03 Nec Corporation Channel switching system
FR2670971A1 (fr) * 1990-12-21 1992-06-26 Trt Telecom Radio Electr Systeme de transmission de mots de donnees utilisant au moins deux canaux de transmission.
JP2765284B2 (ja) * 1991-06-28 1998-06-11 日本電気株式会社 自動回線切替装置
GB2267415B (en) * 1992-05-19 1996-02-07 Sony Broadcast & Communication Signal switching
JPH06205295A (ja) * 1992-12-28 1994-07-22 Sony Corp ビデオ信号送出装置
JP2715962B2 (ja) * 1995-03-10 1998-02-18 日本電気株式会社 回線無瞬断切替方法および装置
US5864358A (en) * 1995-06-26 1999-01-26 Matsushita Electric Industrial Co., Ltd. Method for switching programs in digital broadcasting and digital broadcast receiving apparatus
KR100301575B1 (ko) * 1995-12-22 2001-11-22 박종섭 신호 전송장치
JP4320602B2 (ja) * 2004-02-26 2009-08-26 日本電気株式会社 加入者ユニット冗長システムおよび加入者ユニット冗長方法
US7656791B1 (en) 2006-07-19 2010-02-02 Pmc-Sierra, Inc. Systems and methods for hitless equipment protection
CN104486059B (zh) * 2015-01-04 2018-07-03 阳光电源股份有限公司 一种光伏逆变器并联系统载波同步方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4234956A (en) * 1978-10-11 1980-11-18 The General Electric Company Limited Digital relay systems
US4228535A (en) * 1979-02-26 1980-10-14 Rockwell International Corporation Dual TDM switching apparatus
JPS56153859A (en) * 1980-04-28 1981-11-28 Nec Corp Pcm line switching device
US4477895A (en) * 1980-05-02 1984-10-16 Harris Corporation Synchronized protection switching arrangement
JPS5726955A (en) * 1980-07-25 1982-02-13 Hitachi Ltd Backup control system
JPS5797749A (en) * 1980-12-10 1982-06-17 Fujitsu Ltd Synchronous switching system without momentary break
US4417348A (en) * 1981-04-30 1983-11-22 Bell Telephone Laboratories, Incorporated Errorless line protection switcher

Also Published As

Publication number Publication date
AU573708B2 (en) 1988-06-16
JPH0356496B2 (pt) 1991-08-28
EP0180943A2 (en) 1986-05-14
CN1004252B (zh) 1989-05-17
CA1238724A (en) 1988-06-28
DE3583917D1 (de) 1991-10-02
JPS61111037A (ja) 1986-05-29
CN85108880A (zh) 1986-06-10
EP0180943B1 (en) 1991-08-28
EP0180943A3 (en) 1988-07-27
AU4931485A (en) 1986-05-15
US4686675A (en) 1987-08-11

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 05/11/2000