FI82163C - Foerfarande att oeverfoera en extra informationskanal oever ett transmissionsmedium. - Google Patents
Foerfarande att oeverfoera en extra informationskanal oever ett transmissionsmedium. Download PDFInfo
- Publication number
- FI82163C FI82163C FI842061A FI842061A FI82163C FI 82163 C FI82163 C FI 82163C FI 842061 A FI842061 A FI 842061A FI 842061 A FI842061 A FI 842061A FI 82163 C FI82163 C FI 82163C
- Authority
- FI
- Finland
- Prior art keywords
- signal
- data signal
- frequency
- information channel
- ordinary data
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/02—Channels characterised by the type of signal
- H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
-
- 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
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/502—LED transmitters
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/5161—Combination of different modulation schemes
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/524—Pulse modulation
-
- 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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
- H04B10/548—Phase or frequency modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/12—Arrangements providing for calling or supervisory signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J9/00—Multiplex systems in which each channel is represented by a different type of modulation of the carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2210/00—Indexing scheme relating to optical transmission systems
- H04B2210/07—Monitoring an optical transmission system using a supervisory signal
- H04B2210/074—Monitoring an optical transmission system using a supervisory signal using a superposed, over-modulated signal
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Dc Digital Transmission (AREA)
- Optical Communication System (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Claims (6)
1. Menetelmä ylimääräisen informaatiokanavan siirtämiseksi siirtovälineen edullisesti optisen kuitu- 5 välin kautta, jonka kautta lähetyspuolen ja vastaanotto-puolen välillä siirretään tavanomainen datasignaali RZ-tyyppisen bittivuon muodossa, joka bittivuo on koodattu siten, että vuon koodispektrin (tehospektrin) matala-taajuinen osa on voimakkaasti vaimennettuna, jolloin 10 ylimääräisellä informaatiokanavalla on kaistanleveys ( Δί), joka on oleellisesti pienempi kuin tavanomaisen datasignaalin bittitaajuus (1/T = fo), tunnettu siitä, että se signaali (a), joka lähetyspuolella vastaa ylimääräistä informaatiokanavaa taajuusmoduloidaan 15 keskitaajuudella (fm), joka on oleellisesti alhaisempi kuin tavanomaisen datasignaalin bittitaajuus ja että näin saatu signaali saa moduloida tavanomaista data-signaalia, jolloin moduloitu datasignaali siirretään ja ilmaistaan vastaanottopuolella sekä että vastaan-2o ottopuolella suoritetaan taajuusmodulointi ylimääräisen informaatiokanavan saamiseksi takaisin.
2. Patenttivaatimuksen 1 mukainen menetelmä, tunnettu siitä, että mainittu signaali (a), joka vastaa ylimääräistä informaatiokanavaa taajuusmoduloidaan 25 keskitaajuudella (fm), joka on oleellisesti alhaisempi kuin tavanomainen datasignaalin bittitaajuus (fo = 1/T) ja että näin saatu signaali (b) saa moduloida tavanomaisen datasignaalin keskitehon.
3. Patenttivaatimuksen 1 mukainen menetelmä, t u n-30 n e t t u siitä, että siinä tapauksessa että mainittu bittivuo on RZ-tyyppiä mainittu keskitehon modulointi aikaansaadaan siten, että mainitun taajuusmoduloinnin jälkeen saatu signaali (b) saa pulssinleveysmoduloida signaalin (c tai d), joka määrittää tavanomaisen data-35 signaalin bittivuon. 11 n 82163
4. Patenttivaatimuksen 3 mukainen menetelmä, tunnettu siitä, että mainittu signaali (c tai d) muodostuu kellosignaalista (c), joka määrittää tavanomaista datasignaalia vastaavan bittivuon bittitahdin 5 (1/T).
5. Patenttivaatimuksen 3 mukainen menetelmä, tunnettu siitä, että mainittu signaali (c tai d) muodostuu itse bittivuosta (d).
6. Patenttivaatimuksen 1 mukainen menetelmä, 10 tunnettu siitä, että se signaali, joka vastaa ylimääräistä informaatiokanavaa superponoidaan tavanomaiselle datasignaalille tavanomaisen datasignaalin keskitehon moduloinnin aikaansaamiseksi.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8206011A SE432859B (sv) | 1982-10-22 | 1982-10-22 | Forfarande att overfora en extra informationskanal over ett transmissionsmedium |
SE8206011 | 1982-10-22 | ||
PCT/SE1983/000354 WO1984001679A1 (en) | 1982-10-22 | 1983-10-19 | A method of transferring an additional information channel across a transmission medium |
SE8300354 | 1983-10-19 |
Publications (4)
Publication Number | Publication Date |
---|---|
FI842061A FI842061A (fi) | 1984-05-23 |
FI842061A0 FI842061A0 (fi) | 1984-05-23 |
FI82163B FI82163B (fi) | 1990-09-28 |
FI82163C true FI82163C (fi) | 1991-01-10 |
Family
ID=20348312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI842061A FI82163C (fi) | 1982-10-22 | 1984-05-23 | Foerfarande att oeverfoera en extra informationskanal oever ett transmissionsmedium. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4677608A (fi) |
DK (1) | DK162556C (fi) |
FI (1) | FI82163C (fi) |
IT (1) | IT1169871B (fi) |
NO (1) | NO165009C (fi) |
SE (1) | SE432859B (fi) |
WO (1) | WO1984001679A1 (fi) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2175176A (en) * | 1985-05-10 | 1986-11-19 | Philips Electronic And Assaoci | Signal transmission arrangement, a transmitter and a receiver for such an arrangement and a communication system including such an arrangement |
DE3530546A1 (de) * | 1985-08-27 | 1987-03-19 | Ant Nachrichtentech | Uebertragungsverfahren fuer schnellen und langsamen datenstrom |
US5142396A (en) * | 1987-03-23 | 1992-08-25 | Johnson Service Company | Diffused infrared communication control system |
US4908819A (en) * | 1987-06-08 | 1990-03-13 | Seiscor Technologies, Inc. | Integrated data voice multiplexer supporting handshake and loop-back protocols |
DE3830120A1 (de) * | 1988-09-05 | 1990-03-15 | Standard Elektrik Lorenz Ag | Digitales nachrichtenuebertragungssystem mit uebertragung einer zusatz-information |
GB2235076B (en) * | 1989-08-17 | 1994-05-04 | Asahi Optical Co Ltd | Camera data communication method and camera |
US5126998A (en) * | 1990-05-16 | 1992-06-30 | U.V. Satellite Resources, Inc. | Method and apparatus for transmitting and receiving a carrier signal which is simultaneously frequency and phase modulated |
KR920014231A (ko) * | 1990-12-31 | 1992-07-30 | 이헌조 | 무선헤드폰 송 수신회로 |
FR2700649B1 (fr) * | 1993-01-20 | 1995-04-07 | Dassault Electronique | Procédé et dispositifs de transmission d'informations, notamment par satellite. |
GB2302484B (en) * | 1995-06-17 | 1999-08-04 | Northern Telecom Ltd | Optical tdm transmission system |
JPH0951324A (ja) * | 1995-08-09 | 1997-02-18 | Nec Corp | 波長多重光伝送システム |
AU5311398A (en) * | 1996-12-23 | 1998-07-17 | Dsc Communications A/S | A method and a circuit for the transfer of data information |
US6295272B1 (en) | 1998-04-20 | 2001-09-25 | Gadzoox Networks, Inc. | Subchannel modulation scheme for carrying management and control data outside the regular data channel |
US6847614B2 (en) * | 1998-04-20 | 2005-01-25 | Broadcom Corporation | Apparatus and method for unilateral topology discovery in network management |
US7483639B2 (en) * | 2001-05-10 | 2009-01-27 | Fujitsu Limited | Method and system for transmitting information in an optical communication system using distributed amplification |
US6876656B2 (en) * | 2001-06-15 | 2005-04-05 | Broadcom Corporation | Switch assisted frame aliasing for storage virtualization |
US20060140644A1 (en) * | 2004-12-23 | 2006-06-29 | Paolella Arthur C | High performance, high efficiency fiber optic link for analog and RF systems |
US7706685B2 (en) * | 2005-09-20 | 2010-04-27 | Lockheed Martin Corporation | Data communication network using optical power averaged multiplexing |
US8183982B2 (en) | 2007-08-14 | 2012-05-22 | Infineon Technologies Ag | System including reply signal that at least partially overlaps request |
EP3105870B1 (en) * | 2014-02-13 | 2019-01-16 | Transmode Systems AB | Data transmission method |
JP2017153148A (ja) * | 2017-05-09 | 2017-08-31 | 日本電信電話株式会社 | 光送信装置、光多重送信装置、および、信号重畳方法 |
WO2020198917A1 (zh) * | 2019-03-29 | 2020-10-08 | 京东方科技集团股份有限公司 | 光通信驱动电路及方法、光通信发送端、***、交通工具 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1257308A (fi) * | 1968-04-17 | 1971-12-15 | ||
US3718766A (en) * | 1971-07-30 | 1973-02-27 | Collins Radio Co | Wide band multiplexing system |
JPS50125808A (fi) * | 1974-03-23 | 1975-10-03 | ||
JPS5756513B2 (fi) * | 1974-05-15 | 1982-11-30 | ||
JPS5460509A (en) * | 1977-10-22 | 1979-05-16 | Fuji Electric Co Ltd | Digtal transmission device for analog quantity |
JPS5624840A (en) * | 1979-08-07 | 1981-03-10 | Iwatsu Electric Co Ltd | Digital/analog data simultaneous transmitting system |
JPS5718145A (en) * | 1980-07-09 | 1982-01-29 | Toshiba Corp | Signal separation system |
DE3106269A1 (de) * | 1981-02-20 | 1982-10-21 | Aeg-Telefunken Ag, 1000 Berlin Und 6000 Frankfurt | "verfahren zur integration eines dienstleitungsweges in lichtleituebertragungsstrecken" |
-
1982
- 1982-10-22 SE SE8206011A patent/SE432859B/sv not_active IP Right Cessation
-
1983
- 1983-10-19 US US06/616,210 patent/US4677608A/en not_active Expired - Lifetime
- 1983-10-19 WO PCT/SE1983/000354 patent/WO1984001679A1/en active IP Right Grant
- 1983-10-21 IT IT23393/83A patent/IT1169871B/it active
-
1984
- 1984-05-23 FI FI842061A patent/FI82163C/fi not_active IP Right Cessation
- 1984-06-19 NO NO84842471A patent/NO165009C/no not_active IP Right Cessation
- 1984-06-21 DK DK303384A patent/DK162556C/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK303384D0 (da) | 1984-06-21 |
US4677608A (en) | 1987-06-30 |
NO165009B (no) | 1990-08-27 |
NO842471L (no) | 1984-06-19 |
FI82163B (fi) | 1990-09-28 |
IT1169871B (it) | 1987-06-03 |
FI842061A (fi) | 1984-05-23 |
NO165009C (no) | 1990-12-05 |
DK162556C (da) | 1992-05-11 |
WO1984001679A1 (en) | 1984-04-26 |
FI842061A0 (fi) | 1984-05-23 |
SE8206011D0 (sv) | 1982-10-22 |
DK162556B (da) | 1991-11-11 |
SE432859B (sv) | 1984-04-16 |
DK303384A (da) | 1984-06-21 |
IT8323393A0 (it) | 1983-10-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM | Patent lapsed |
Owner name: OY L M ERICSSON AB |