GB1376188A - Data transmission system - Google Patents

Data transmission system

Info

Publication number
GB1376188A
GB1376188A GB5206971A GB5206971A GB1376188A GB 1376188 A GB1376188 A GB 1376188A GB 5206971 A GB5206971 A GB 5206971A GB 5206971 A GB5206971 A GB 5206971A GB 1376188 A GB1376188 A GB 1376188A
Authority
GB
United Kingdom
Prior art keywords
receiver
mirror
transmitter
diode
lens
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB5206971A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Data Transmission Co
Original Assignee
Data Transmission Co
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 Data Transmission Co filed Critical Data Transmission Co
Publication of GB1376188A publication Critical patent/GB1376188A/en
Expired legal-status Critical Current

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
    • H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2014—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes in a piecewise linear manner during each symbol period, e.g. minimum shift keying, fast frequency shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2272—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals using phase locked loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
    • 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
    • H04L5/22—Arrangements affording multiple use of the transmission path using time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radio Relay Systems (AREA)
  • Optical Communication System (AREA)
  • Small-Scale Networks (AREA)
GB5206971A 1970-11-09 1971-11-09 Data transmission system Expired GB1376188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00088068A US3824597A (en) 1970-11-09 1970-11-09 Data transmission network

Publications (1)

Publication Number Publication Date
GB1376188A true GB1376188A (en) 1974-12-04

Family

ID=22209209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5206971A Expired GB1376188A (en) 1970-11-09 1971-11-09 Data transmission system

Country Status (4)

Country Link
US (1) US3824597A (enExample)
DE (1) DE2155644A1 (enExample)
FR (1) FR2112554B1 (enExample)
GB (1) GB1376188A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217544A (en) * 1986-12-24 1989-10-25 Devan T Dockery Remote control system

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520835C3 (de) * 1975-05-09 1981-11-19 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Übertragung von synchron und asynchron auftretenden Daten
US4121217A (en) * 1976-08-06 1978-10-17 Southern Pacific Communications Company (Spcc) Data transmission network interface unit
US4183054A (en) * 1977-09-30 1980-01-08 Harris Corporation Digital, frequency-translated, plural-channel, vestigial sideband television communication system
US4236255A (en) * 1978-12-15 1980-11-25 Interlake, Inc. Rack entry vehicle communication system
US5459729C1 (en) * 1989-07-25 2002-03-19 Raychem Corp Digital added main line system
JPH03268532A (ja) * 1990-03-19 1991-11-29 Fujitsu Ltd Ａｔｍセルのブロードキャスト方式
JPH0744512B2 (ja) * 1990-03-23 1995-05-15 株式会社小電力高速通信研究所 空間分割型多重通信方式
US5463731A (en) * 1990-06-27 1995-10-31 Telefonaktiebolaget L M Ericsson Monitor screen graphic value indicator system
WO1992013417A1 (en) * 1991-01-28 1992-08-06 Motorola, Inc. Simulcast transmission system having predetermined launch times
CA2063901C (en) * 1991-03-25 2002-08-13 Arunas G. Slekys Cellular data overlay system
OA09714A (en) * 1991-11-15 1993-08-30 Csir Telecommunications network.
DE4139300A1 (de) * 1991-11-29 1993-06-03 Rheydt Kabelwerk Ag Netzwerk-topologie zur datenuebertragung
JP3287015B2 (ja) * 1992-07-07 2002-05-27 富士通株式会社 補助信号伝送方式
US5352991A (en) * 1993-08-12 1994-10-04 Motorola, Inc. Power amplifier assembly
US6021307A (en) 1994-04-07 2000-02-01 Chan; Hark C. Information distribution and processing system
US6188869B1 (en) 1994-04-07 2001-02-13 Hark C. Chan Information distribution and processing system
US7991347B1 (en) 1994-04-07 2011-08-02 Data Innovation Llc System and method for accessing set of digital data at a remote site
US6473860B1 (en) 1994-04-07 2002-10-29 Hark C. Chan Information distribution and processing system
US6314574B1 (en) 1994-06-08 2001-11-06 Hark Chan Information distribution system
US7181758B1 (en) 1994-07-25 2007-02-20 Data Innovation, L.L.C. Information distribution and processing system
US6289200B1 (en) 1994-07-25 2001-09-11 Hark C. Chan Information distribution system which intermittaly transmits radio frequency signal digital data
US5668814A (en) * 1995-03-20 1997-09-16 Raychem Corporation Dual DDS data multiplexer
FI100571B (fi) * 1995-11-15 1997-12-31 Nokia Telecommunications Oy Asynkroninen datansiirtomenetelmä ja -järjestely
DE19545508C1 (de) * 1995-12-05 1997-06-05 Siemens Ag Verfahren zur Anpassung von adaptiven Funkteilnehmerstationen an Übertragungsnetze und eine entsprechende Funkteilnehmerstation
JP3780551B2 (ja) * 1996-01-29 2006-05-31 ソニー株式会社 多元接続による信号送信方法及び装置
US5793812A (en) * 1996-02-21 1998-08-11 Hewlett-Packard Company Line driver circuit for redundant timing signal generators
US6931183B2 (en) 1996-03-29 2005-08-16 Dominion Lasercom, Inc. Hybrid electro-optic cable for free space laser antennas
US6348986B1 (en) 1996-03-29 2002-02-19 Dominion Lasercom. Inc. Wireless fiber-coupled telecommunication systems based on atmospheric transmission of laser signals
US5852795A (en) * 1996-11-22 1998-12-22 New York Gas Group Apparatus for controlling a multiplicity of compressors
US6285857B1 (en) * 1997-05-01 2001-09-04 At&T Corp. Multi-hop telecommunications system and method
US6282204B1 (en) 1997-12-19 2001-08-28 Terayon Communication Systems, Inc. ISDN plus voice multiplexer system
US6415150B1 (en) * 1998-09-11 2002-07-02 Ameritech Corporation System and method for providing telecommunications service using a wireless link
US6158857A (en) * 1999-04-29 2000-12-12 Hewlett-Packard Company Internal drum communication using a capacitor
WO2001011536A1 (en) * 1999-08-11 2001-02-15 Newport Communications, Inc. Built-in self-test for multi-channel transceivers without data alignment
US6725408B1 (en) * 1999-08-11 2004-04-20 Broadcom Corporation Built-in self-test for multi-channel transceivers without data alignment
US6546096B1 (en) * 1999-08-25 2003-04-08 Siemens Information And Communication Networks, Inc. Proximity detector for initiating automatic callback
DE19963817C2 (de) * 1999-12-30 2002-09-26 Siemens Ag Verfahren und Vorrichtung zur Umsetzung eines bidirektionalen Datenstroms über eine S2m-Schnittstelle für eine Übermittlung über ein Niederspannungsstromnetz
US6867889B1 (en) 2000-07-28 2005-03-15 Terabeam Corporation Transceiver for a wireless optical telecommunication system
US6608708B1 (en) 2000-07-28 2003-08-19 Terabeam Corporation System and method for using a holographic optical element in a wireless telecommunication system receiver
US7013129B2 (en) * 2001-06-14 2006-03-14 Lucent Technologies Inc. Queuing for radio channel availability
FR2833791B1 (fr) * 2001-12-13 2004-02-06 Telediffusion De France Tdf Dispositif de metrologie pour la surveillance automatique d'un reseau de diffusion de signaux numeriques et reseau de diffusion comprenant un tel dispositif de metrologie
US6885973B1 (en) * 2003-01-28 2005-04-26 Sprint Communications Company L.P. Alarm facilitator and method for analyzing computer hardware alarms
US7343564B2 (en) * 2003-08-11 2008-03-11 Core Mobility, Inc. Systems and methods for displaying location-based maps on communication devices
US20060236258A1 (en) * 2003-08-11 2006-10-19 Core Mobility, Inc. Scheduling of rendering of location-based content
US20050210391A1 (en) * 2003-08-11 2005-09-22 Core Mobility, Inc. Systems and methods for navigating content in an interactive ticker
US7370283B2 (en) * 2003-08-11 2008-05-06 Core Mobility, Inc. Systems and methods for populating a ticker using multiple data transmission modes
US7430724B2 (en) * 2003-08-11 2008-09-30 Core Mobility, Inc. Systems and methods for displaying content in a ticker
US20050039135A1 (en) * 2003-08-11 2005-02-17 Konstantin Othmer Systems and methods for navigating content in an interactive ticker
CA2446469A1 (en) * 2003-08-15 2005-02-15 M-Stack Limited Apparatus, and an associated method, for preserving communication service quality levels during hand-off of communications in a radio communication system
US20050137940A1 (en) * 2003-12-22 2005-06-23 Lindsay Jeffrey D. Method to provide a product to a consumer to protect consumer privacy
US7408951B1 (en) * 2004-01-20 2008-08-05 Tellabs Petaluma, Inc. Method for transmitting data
US7668561B2 (en) * 2004-02-27 2010-02-23 Qualcomm Incorporated Apparatus and method for controlling reverse link interference among access terminals in wireless communications
US20060217110A1 (en) * 2005-03-25 2006-09-28 Core Mobility, Inc. Prioritizing the display of non-intrusive content on a mobile communication device
CA2505565C (en) * 2005-04-28 2008-09-16 Camco Inc. Apparatus and method for controlling a clothes dryer
WO2008022338A2 (en) * 2006-08-17 2008-02-21 Core Mobility, Inc. Presence-based communication between local wireless network access points and mobile devices
KR100891555B1 (ko) * 2006-09-27 2009-04-03 (주)이홈 전자가정을 활용한 디지털 신경망에서 이루어지는 회원별정보제공방법 및 시스템
US8746045B2 (en) 2006-11-17 2014-06-10 Meggitt (Orange County), Inc. System and method for identifying fluids and monitoring fluid quality in a vessel
US7650785B1 (en) * 2006-11-17 2010-01-26 Vibro-Meter, Inc. Scan lock and track fluid characterization and level sensor apparatus and method
US8515466B2 (en) * 2007-02-16 2013-08-20 Qualcomm Incorporated Scheduling based on rise-over-thermal in a wireless communication system
US8254279B2 (en) * 2007-04-24 2012-08-28 Qualcomm Incorporated Estimation of thermal noise and rise-over-thermal in a wireless communication system
US20090132432A1 (en) * 2007-10-01 2009-05-21 Clapper Rock L Commodity, price and volume data sharing system for non-publicly traded commodities
US20120213515A1 (en) * 2011-02-18 2012-08-23 Zoran Maricevic Service group aggregation
CN103716799B (zh) * 2012-09-29 2017-12-05 华为技术有限公司 频谱划分的方法、设备及系统
US8855968B1 (en) * 2012-12-10 2014-10-07 Timothy Lynn Gillis Analytical evaluation tool for continuous process plants
WO2014199384A1 (en) * 2013-06-12 2014-12-18 Corning Optical Communications Wireless, Ltd. Voltage controlled optical directional coupler
EP3502817A1 (en) * 2017-12-19 2019-06-26 ABB Schweiz AG Method for facilitating control system testing and simulation
US10389447B1 (en) * 2018-06-08 2019-08-20 Ciena Corporation Dimensional transformation
US11493949B2 (en) * 2020-03-27 2022-11-08 Qualcomm Incorporated Clocking scheme to receive data
CN112737890B (zh) * 2020-12-29 2022-09-13 上海微波技术研究所（中国电子科技集团公司第五十研究所） 一种防止网络震荡导致网络测试仪中断的方法及系统
FR3121315B1 (fr) * 2021-03-26 2024-03-29 Schneider Electric Ind Sas Module fonctionnel pour armoire électrique de raccordement et armoire électrique de raccordement comprenant un tel module fonctionnel
CN114614841B (zh) * 2022-04-08 2024-01-05 西南交通大学 一种基于模拟相位调制的光子学毫米波雷达通信一体化系统
CN115051766A (zh) * 2022-06-02 2022-09-13 中国电子科技集团公司第十研究所 一种通信侦察检测设备及检测方法
CN115134277B (zh) * 2022-06-24 2023-10-20 山东信通电子股份有限公司 一种动态调整网络连接数的宽带网络速率测试方法及设备

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626348A (en) * 1945-08-08 1953-01-20 Westinghouse Electric Corp Airborne radio relay and broadcast system
US2509218A (en) * 1944-04-20 1950-05-30 Standard Telephones Cables Ltd Repeater link system
US2833861A (en) * 1952-10-06 1958-05-06 Bell Telephone Labor Inc Communication sysem, intermediate relay repeater station
CA587598A (en) * 1955-02-25 1959-11-24 Westinghouse Electric Corporation Microwave communication system
US2977417A (en) * 1958-08-18 1961-03-28 Collins Radio Co Minimum-shift data communication system
US3121221A (en) * 1959-03-03 1964-02-11 James L Sullivan Automatic frequency control
US3281789A (en) * 1962-11-02 1966-10-25 Frederick P Willcox Multiple remote interrogated information system
NL6408627A (nl) * 1964-07-29 1966-01-31 Philips Nv Transmissie-inrichting
US3446917A (en) * 1964-12-29 1969-05-27 Bell Telephone Labor Inc Time division switching system
US3430047A (en) * 1965-01-04 1969-02-25 Sanders Associates Inc Background cancelling optical detection system
US3499713A (en) * 1965-07-08 1970-03-10 Nippon Electric Co Laser communication device
DE1255541B (de) * 1965-12-15 1967-11-30 Nippon Electric Co Optische Nachrichtenuebertragungsanordnung
US3486029A (en) * 1965-12-29 1969-12-23 Gen Electric Radiative interconnection arrangement
DE1591305B1 (de) * 1966-02-23 1971-03-11 Nippon Electric Co Satelliten uebertragungssystem mit beliebugem zugriff fuer mehrere bodenstationen
US3484694A (en) * 1966-03-16 1969-12-16 Sangamo Electric Co Data transmission system wherein system control is divided between a plurality of levels for remote location activation
US3527949A (en) * 1967-02-15 1970-09-08 Gen Electric Low energy,interference-free,pulsed signal transmitting and receiving device
US3482165A (en) * 1967-09-18 1969-12-02 Collins Radio Co Switchover system to provide antenna protection and space diversity configuration
US3569838A (en) * 1968-04-03 1971-03-09 Sylvania Electric Prod Wide range frequency synthesizer
US3564147A (en) * 1968-04-05 1971-02-16 Communications Satellite Corp Local routing channel sharing system and method for communications via a satellite relay
US3553367A (en) * 1968-05-10 1971-01-05 Litton Systems Inc Facsimile multiplex communication system
US3632884A (en) * 1968-09-12 1972-01-04 Bell Telephone Labor Inc Time division communication system
US3553380A (en) * 1968-10-25 1971-01-05 Itt Multiplexing system
US3548106A (en) * 1969-07-24 1970-12-15 Anaconda Wire & Cable Co Rural subscriber telephone system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217544A (en) * 1986-12-24 1989-10-25 Devan T Dockery Remote control system

Also Published As

Publication number Publication date
FR2112554A1 (enExample) 1972-06-16
DE2155644A1 (de) 1972-05-18
FR2112554B1 (enExample) 1977-10-14
US3824597A (en) 1974-07-16

Similar Documents

Publication Publication Date Title
GB1376188A (en) Data transmission system
GB1126189A (en) Binoculars for communication systems
US5870215A (en) Covert selective acquisition device for identifying friend or foe
US3751166A (en) Command guidance transmitter system
US4662003A (en) System for electrooptical information transmission
GB1290930A (enExample)
GB1226275A (enExample)
GB1164064A (en) Improvements in or relating to Telescopic Sights
US5978121A (en) Method and device for the optical transmission of data over distances in space
CN109889252A (zh) 星间激光通信系统
CA2013246A1 (en) Atmospheric optical communication link
GB1286455A (en) Measurement of visual range in fog
US5638162A (en) Optical signal enhancement system
GB1429289A (en) Identification system
GB1429875A (en) Optical apparatus
US3699344A (en) Optical pulse communication system using a pseudo-random sequence for synchronization
GB1276769A (en) Dual field tracking system
JPS5633572A (en) Optical rader device
NL6710366A (enExample)
GB1084133A (enExample)
RU2831323C1 (ru) Способ лазерной связи в открытом пространстве и комплекс для его реализации
SE324465B (enExample)
Sun et al. Performance measurements of a diode laser optical communications link with Q= 4 PPM signaling
GB1124061A (en) Improvements relating to communication equipment
GB1332334A (en) Optical telemetry systems

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee