NO940937L - Anordning for samtidig detektering av flere diskrete lasermodulasjonsfrekvenser - Google Patents

Anordning for samtidig detektering av flere diskrete lasermodulasjonsfrekvenser

Info

Publication number
NO940937L
NO940937L NO940937A NO940937A NO940937L NO 940937 L NO940937 L NO 940937L NO 940937 A NO940937 A NO 940937A NO 940937 A NO940937 A NO 940937A NO 940937 L NO940937 L NO 940937L
Authority
NO
Norway
Prior art keywords
multiple discrete
simultaneous detection
modulation frequencies
laser modulation
discrete laser
Prior art date
Application number
NO940937A
Other languages
English (en)
Other versions
NO940937D0 (no
Inventor
William F Matthews
Original Assignee
Hughes Aircraft 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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of NO940937D0 publication Critical patent/NO940937D0/no
Publication of NO940937L publication Critical patent/NO940937L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • 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
    • H04B10/114—Indoor or close-range type systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
    • H03F3/08—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light
    • H03F3/087—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only controlled by light with IC amplifier blocks
    • 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
    • H04B10/114—Indoor or close-range type systems
    • H04B10/116—Visible light communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Power Engineering (AREA)
  • Optical Communication System (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Semiconductor Lasers (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Amplifiers (AREA)

Abstract

Anordning (10) Innbefattende l det minste en detek- torkrets (12), med en krets (14) for annullering av bakgrunnsstråling, et signalforsterkertrinn (16) for å motta og forsterke et signal fra detektorkretsen (12) og flere diskretfrekvensdetekteringskretser (18), idet diskretfrekvensdetekterlngskretsene har en felles Inngang (20) og flere utganger (22).
NO940937A 1993-03-17 1994-03-16 Anordning for samtidig detektering av flere diskrete lasermodulasjonsfrekvenser NO940937L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/047,331 US5338925A (en) 1993-03-17 1993-03-17 Apparatus for simultaneously detecting a plurality of discrete laser modulation frequencies having circuitry for background radiation canceling

Publications (2)

Publication Number Publication Date
NO940937D0 NO940937D0 (no) 1994-03-16
NO940937L true NO940937L (no) 1994-09-19

Family

ID=21948357

Family Applications (1)

Application Number Title Priority Date Filing Date
NO940937A NO940937L (no) 1993-03-17 1994-03-16 Anordning for samtidig detektering av flere diskrete lasermodulasjonsfrekvenser

Country Status (8)

Country Link
US (1) US5338925A (no)
EP (1) EP0616439B1 (no)
JP (1) JPH075249A (no)
KR (1) KR940023038A (no)
CA (1) CA2119224A1 (no)
DE (1) DE69429125T2 (no)
IL (1) IL109029A0 (no)
NO (1) NO940937L (no)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417975C2 (de) * 1994-05-21 2002-09-19 Eads Deutschland Gmbh FM-Diskriminator für den Mikrowellenbereich
US8357464B2 (en) 2011-04-01 2013-01-22 Sakti3, Inc. Electric vehicle propulsion system and method utilizing solid-state rechargeable electrochemical cells

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143264A (en) * 1977-10-20 1979-03-06 Gilbert William J Highway line detector
US4366378A (en) * 1980-01-23 1982-12-28 Itek Corporation Laser light detection system
US4945255A (en) * 1983-07-05 1990-07-31 Canon Kabushiki Kaisha Power source device
FR2554997B1 (fr) * 1983-11-10 1986-05-16 Thomson Csf Systeme de transmission d'informations numeriques par modulation d'une onde lumineuse coherente
DE3833635A1 (de) * 1988-10-04 1990-04-05 Messerschmitt Boelkow Blohm Laserwarnempfaenger
US5142142A (en) * 1989-09-15 1992-08-25 Trator Inc. Portable device for detecting short duration energy pulses
SE9100916L (sv) * 1991-03-27 1992-09-28 Nobeltech Electronics Ab Laservarnare

Also Published As

Publication number Publication date
KR940023038A (ko) 1994-10-22
NO940937D0 (no) 1994-03-16
DE69429125T2 (de) 2002-06-06
JPH075249A (ja) 1995-01-10
CA2119224A1 (en) 1994-12-09
US5338925A (en) 1994-08-16
DE69429125D1 (de) 2002-01-03
IL109029A0 (en) 1994-11-11
EP0616439B1 (en) 2001-11-21
EP0616439A2 (en) 1994-09-21
EP0616439A3 (en) 1996-07-17

Similar Documents

Publication Publication Date Title
UA39094C2 (uk) Передавач (варіанти), спосіб керування підсилювачем, схема підсилення і керування насиченням підсилювача
DE69620272T2 (de) Datenverabeitungsgerät und -verfahren
ES2112385T3 (es) Aparato de supresion de ruido.
ES2123538T3 (es) Sistema de sintonizacion de frecuencia para un par ota-c.
MY131094A (en) Interference detection technique.
AU8091898A (en) Wake-up circuit for an electronic apparatus
DE3772817D1 (de) Mehrweglautsprechersystem.
NO940937L (no) Anordning for samtidig detektering av flere diskrete lasermodulasjonsfrekvenser
DE59603522D1 (de) Schaltungsanordnung zur Auswertung von Intermodulationsprodukten
DE59801464D1 (de) Daten-empfangsschaltung für infrarotsignale
GB2211685A (en) Differential volume adjusters
KR950022892A (ko) 영상처리 시스템의 자동이득 조절회로
NO990973L (no) FremgangsmÕte og anordning for Õ danne et kalibreringssignal
KR950022150A (ko) 가변 감쇠기를 이용한 자동 이득 조절장치
DE60113847D1 (de) Vorrichtung zur Audiowiedergabe
EP0383293A3 (en) Amplifying circuit
MX9704444A (es) Aparato y metodo para realizar la amplificacion del error corregido en un sistema de radiofrecuencia.
GB2261143A (en) Apparatus for filtering and amplifying an oscillator
JP2000196475A (ja) 送信機
KR920011532A (ko) 스트레스 해소신호 발생장치
TH21271A (th) ข่ายวงจรขยายป้อนไปข้างหน้าอิสระจากการมอดูเลตย่านพลวัตสูง
TH19761A (th) ข่ายวงจรขยายแบบป้อนไปข้างหน้าที่มีสัญญาณนำร่องกวาดความถี่
KR930020358A (ko) 문자디스플레이 및 스테레오재생 카세트장치
TH19761EX (th) ข่ายวงจรขยายแบบป้อนไปข้างหน้าที่มีสัญญาณนำร่องกวาดความถี่
TH6716EX (th) อุปกรณ์ขยายสัญญาณแบบไม่เป็นเชิงเส้น