GR78068B - - Google Patents

Info

Publication number
GR78068B
GR78068B GR70501A GR830170501A GR78068B GR 78068 B GR78068 B GR 78068B GR 70501 A GR70501 A GR 70501A GR 830170501 A GR830170501 A GR 830170501A GR 78068 B GR78068 B GR 78068B
Authority
GR
Greece
Application number
GR70501A
Inventor
D J Prestel
Original Assignee
Gould Inc
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 Gould Inc filed Critical Gould Inc
Publication of GR78068B publication Critical patent/GR78068B/el

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
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
    • 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
    • H04B10/505—Laser transmitters using external modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
GR70501A 1982-03-31 1983-02-15 GR78068B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/363,854 US4538140A (en) 1982-03-31 1982-03-31 Fiber optic acoustic transducer intrusion detection system

Publications (1)

Publication Number Publication Date
GR78068B true GR78068B (el) 1984-09-26

Family

ID=23432021

Family Applications (1)

Application Number Title Priority Date Filing Date
GR70501A GR78068B (el) 1982-03-31 1983-02-15

Country Status (7)

Country Link
US (1) US4538140A (el)
EP (1) EP0104228A4 (el)
JP (1) JPS59500536A (el)
AU (1) AU543456B2 (el)
GR (1) GR78068B (el)
IT (1) IT1170353B (el)
WO (1) WO1983003492A1 (el)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559630A1 (fr) * 1984-02-15 1985-08-16 Times Fiber Communications Systeme de transmission par fibre optique
CH676519A5 (el) * 1988-06-28 1991-01-31 Cerberus Ag
US4863270A (en) * 1988-08-31 1989-09-05 Simmonds Precision Products, Inc. Multi-mode optical fiber sensor and method
US5602669A (en) * 1994-06-30 1997-02-11 Sony Corporation Digital signal transmission apparatus, digital signal transmission method, and digital signal transmitter-receiver
US5691697A (en) * 1995-09-22 1997-11-25 Kidde Technologies, Inc. Security system
US7668322B2 (en) * 2001-05-18 2010-02-23 Tpo Hong Kong Holding Limited Device for detecting pressure fluctuations, display device, recording device and sound reproduction system
US8835740B2 (en) * 2001-08-16 2014-09-16 Beamz Interactive, Inc. Video game controller
KR20050059075A (ko) * 2002-08-20 2005-06-17 더 리전트 오브 더 유니버시티 오브 캘리포니아 진동 검출기, 음 검출기, 보청기, 와우각 이식물 및 이와관련된 방법
WO2007074429A1 (en) * 2005-12-28 2007-07-05 Bioscan Ltd. Opto-electronic system and method for detecting perturbations
US7708419B2 (en) * 2007-03-02 2010-05-04 Himax Technologies Limited Ambient light system and method thereof
US20100277720A1 (en) * 2008-09-17 2010-11-04 Daniel Hammons Virtual fence system and method
GB201112161D0 (en) * 2011-07-15 2011-08-31 Qinetiq Ltd Portal monitoring
US8701161B1 (en) 2012-06-29 2014-04-15 Adtran, Inc. Systems and methods for detecting network intrusion devices
US9608627B2 (en) 2013-01-24 2017-03-28 Halliburton Energy Services Well tool having optical triggering device for controlling electrical power delivery
US20140204712A1 (en) * 2013-01-24 2014-07-24 Halliburton Energy Services, Inc. Downhole optical acoustic transducers
US10247840B2 (en) 2013-01-24 2019-04-02 Halliburton Energy Services, Inc. Optical well logging
WO2014145539A2 (en) * 2013-03-15 2014-09-18 Stephen Sohn Method and system for protective distribution system (pds) and infrastructure protection and management
US10652253B2 (en) 2013-03-15 2020-05-12 CyberSecure IPS, LLC Cable assembly having jacket channels for LEDs
CN111222461A (zh) * 2020-01-06 2020-06-02 兰州奥普信息技术有限公司 一种光纤振动探测系统入侵信号的识别方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3442568A (en) * 1965-11-22 1969-05-06 American Optical Corp Light-modulating device
US3662326A (en) * 1969-11-04 1972-05-09 Hazeltine Corp Subaudible frequency detection system
US3745552A (en) * 1971-09-13 1973-07-10 Teledyne Ind Intrusion signature detector requiring both frequency and amplitude shifts
US4071753A (en) * 1975-03-31 1978-01-31 Gte Laboratories Incorporated Transducer for converting acoustic energy directly into optical energy
JPS5830633B2 (ja) * 1976-01-29 1983-06-30 陽助 斉田 防犯警報用振動検知器
GB1573618A (en) * 1976-03-16 1980-08-28 Elliott Brothers London Ltd Intruder alarm systems
GB1497995A (en) * 1976-04-13 1978-01-12 Standard Telephones Cables Ltd Fibre optic acoustic monitoring arrangement
US4086484A (en) * 1976-07-14 1978-04-25 International Telephone And Telegraph Corporation Optical amplitude modulation modulator
US4115753A (en) * 1977-07-18 1978-09-19 The United States Of America As Represented By The Secretary Of The Navy Fiber optic acoustic array
US4144530A (en) * 1977-11-17 1979-03-13 The United States Of America As Represented By The Secretary Of The Navy Combined intrusion sensor line
US4158310A (en) * 1978-01-30 1979-06-19 University Of Southern California Optical pressure transducer of randomly distributed fiber optics
US4241338A (en) * 1978-05-15 1980-12-23 Ernst Spirig Ambient noise intruder alarm
US4235113A (en) * 1978-08-21 1980-11-25 Carome Edward F Optical fiber acoustical sensors
JPS5582395A (en) * 1978-12-15 1980-06-21 Fujitsu Ltd Light detecting circuit
US4238856A (en) * 1979-01-24 1980-12-09 The United States Of America As Represented By The Secretary Of The Navy Fiber-optic acoustic sensor
US4297684A (en) * 1979-03-26 1981-10-27 Honeywell Inc. Fiber optic intruder alarm system
JPS5617607A (en) * 1979-07-25 1981-02-19 Heishin Sobi Kk Continuous vacuum defoaming apparatus
US4321463A (en) * 1979-12-17 1982-03-23 Stecher Samuel J Low frequency laser fiberoptic detector apparatus for musical instruments and intrusion detection
US4354735A (en) * 1979-12-26 1982-10-19 Gould Inc. Optical transducer
US4375680A (en) * 1981-01-16 1983-03-01 Mcdonnell Douglas Corporation Optical acoustic sensor
US4405198A (en) * 1981-08-25 1983-09-20 The United States Of America As Represented By The Secretary Of The Navy Extended fiber optic sensor using birefringent fibers

Also Published As

Publication number Publication date
IT8348017A0 (it) 1983-03-29
AU543456B2 (en) 1985-04-18
EP0104228A4 (en) 1985-10-14
WO1983003492A1 (en) 1983-10-13
AU1472083A (en) 1983-10-24
IT1170353B (it) 1987-06-03
EP0104228A1 (en) 1984-04-04
US4538140A (en) 1985-08-27
JPS59500536A (ja) 1984-03-29

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