IT1077159B - Ricevitore ottico - Google Patents

Ricevitore ottico

Info

Publication number
IT1077159B
IT1077159B IT22412/77A IT2241277A IT1077159B IT 1077159 B IT1077159 B IT 1077159B IT 22412/77 A IT22412/77 A IT 22412/77A IT 2241277 A IT2241277 A IT 2241277A IT 1077159 B IT1077159 B IT 1077159B
Authority
IT
Italy
Prior art keywords
optical receiver
receiver
optical
Prior art date
Application number
IT22412/77A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of IT1077159B publication Critical patent/IT1077159B/it

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10851—Circuits for pulse shaping, amplifying, eliminating noise signals, checking the function of the sensing device
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
    • H03K5/082—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold
    • H03K5/086—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding with an adaptive threshold generated by feedback
    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
  • Dc Digital Transmission (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Geophysics And Detection Of Objects (AREA)
IT22412/77A 1976-04-15 1977-04-13 Ricevitore ottico IT1077159B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7604503A SE393012B (sv) 1976-04-15 1976-04-15 Optisk mottagare

Publications (1)

Publication Number Publication Date
IT1077159B true IT1077159B (it) 1985-05-04

Family

ID=20327616

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22412/77A IT1077159B (it) 1976-04-15 1977-04-13 Ricevitore ottico

Country Status (8)

Country Link
US (1) US4121095A (it)
JP (1) JPS52127002A (it)
AU (1) AU508490B2 (it)
FR (1) FR2348602A1 (it)
GB (1) GB1545136A (it)
IT (1) IT1077159B (it)
NO (1) NO138581C (it)
SE (1) SE393012B (it)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215269A (en) * 1978-06-09 1980-07-29 Kuhn Loughrey R Fiber optic modem/data set
US4257124A (en) * 1979-04-02 1981-03-17 The Boeing Company Optical repeater for use in active multiport fiber optic data bus coupler
JPS5869153A (ja) * 1981-10-21 1983-04-25 Nippon Telegr & Teleph Corp <Ntt> 符号識別判定回路
GB2142198B (en) * 1983-06-25 1986-07-30 Standard Telephones Cables Ltd Interface circuit
US7076172B2 (en) * 2002-07-09 2006-07-11 Corning Incorporated Waveguide fiber for noise suppression

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2056284A (en) * 1935-06-07 1936-10-06 Bell Telephone Labor Inc Signaling method and apparatus
US2981796A (en) * 1958-12-09 1961-04-25 Bell Telephone Labor Inc Self-timed regenerative repeaters for pcm
US3278684A (en) * 1962-11-28 1966-10-11 Bell Telephone Labor Inc Precision timing of pulse signals
FR1422118A (fr) * 1964-09-10 1965-12-24 Ibm France Mode de réception de signaux de type télégraphique permettant une plus grande vitesse de transmission
US3509279A (en) * 1967-05-22 1970-04-28 Collins Radio Co Am data detector with reference level responsive to input and detected data to produce comparison signal
US3611149A (en) * 1969-06-06 1971-10-05 Bottelle Dev Corp The Iterated switched mode receiver
NL7004875A (it) * 1970-04-04 1971-10-06
US3697757A (en) * 1971-02-08 1972-10-10 Bell Telephone Labor Inc Arrangements for detecting distorted optical pulses using a correlation technique
US3962549A (en) * 1975-01-29 1976-06-08 Rca Corporation Threshold detector circuitry, as for PCM repeaters
US4006304A (en) * 1975-12-10 1977-02-01 Bell Telephone Laboratories, Incorporated Apparatus for word synchronization in an optical communication system

Also Published As

Publication number Publication date
FR2348602A1 (fr) 1977-11-10
NO138581C (no) 1978-09-27
JPS52127002A (en) 1977-10-25
GB1545136A (en) 1979-05-02
NO138581B (no) 1978-06-19
FR2348602B1 (it) 1983-11-18
SE393012B (sv) 1977-04-25
NO771313L (no) 1977-10-18
US4121095A (en) 1978-10-17
AU2324677A (en) 1978-09-21
AU508490B2 (en) 1980-03-20

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