JPS57132440A - Annular optical communication system - Google Patents

Annular optical communication system

Info

Publication number
JPS57132440A
JPS57132440A JP56016927A JP1692781A JPS57132440A JP S57132440 A JPS57132440 A JP S57132440A JP 56016927 A JP56016927 A JP 56016927A JP 1692781 A JP1692781 A JP 1692781A JP S57132440 A JPS57132440 A JP S57132440A
Authority
JP
Japan
Prior art keywords
optical
receiver
distribution
transmitted
received
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.)
Pending
Application number
JP56016927A
Other languages
Japanese (ja)
Inventor
Shigeru Oshima
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56016927A priority Critical patent/JPS57132440A/en
Priority to DE19813139893 priority patent/DE3139893A1/en
Priority to FR8118950A priority patent/FR2492148B1/en
Priority to US06/309,754 priority patent/US4450495A/en
Publication of JPS57132440A publication Critical patent/JPS57132440A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/06—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape
    • G11B25/063—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using web-form record carriers, e.g. tape using tape inside container
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • G11B31/003—Arrangements for the associated working of recording or reproducing apparatus with related apparatus with radio receiver
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/08—Constructional details, e.g. cabinet
    • H04B1/086—Portable receivers
    • H04B1/088—Portable receivers with parts of the receiver detachable or collapsible
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/02—Spatial or constructional arrangements of loudspeakers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To stably operate annular optical communication network, by supplying a minimum optical power required for an optical receiver to each optical receiver through distribution and giving the remaining optical power to the next station. CONSTITUTION:When an optical transmitter 26 makes transmission, a controller 34 is operated so that all light can be transmitted to an annular optical fiber cable 21. At reception side, for example, a receiver 31 detects a received optical signal level, and the amount of distribution of a variable optical distributor 23 is controlled through a controller 35 so that the required minimum optical power can be received by the receiver 31. While the amount of distribution for variable optical distriburors 23-25 is sequentially set, the transmitter 26 transmits meaningless data, the light obtained through circulation is received at an optical receiver and after the reception level is not in variance, a signal to be transmitted is transmitted.
JP56016927A 1980-10-09 1981-02-09 Annular optical communication system Pending JPS57132440A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56016927A JPS57132440A (en) 1981-02-09 1981-02-09 Annular optical communication system
DE19813139893 DE3139893A1 (en) 1980-10-09 1981-10-07 PORTABLE ACOUSTIC DEVICE
FR8118950A FR2492148B1 (en) 1980-10-09 1981-10-08 PORTABLE SOUND APPARATUS
US06/309,754 US4450495A (en) 1980-10-09 1981-10-08 Portable acoustic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016927A JPS57132440A (en) 1981-02-09 1981-02-09 Annular optical communication system

Publications (1)

Publication Number Publication Date
JPS57132440A true JPS57132440A (en) 1982-08-16

Family

ID=11929756

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016927A Pending JPS57132440A (en) 1980-10-09 1981-02-09 Annular optical communication system

Country Status (1)

Country Link
JP (1) JPS57132440A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158739A (en) * 1984-01-27 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158743A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158742A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158740A (en) * 1984-01-27 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158741A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60220634A (en) * 1984-04-18 1985-11-05 Mitsubishi Electric Corp Optical data way device
EP0208504A2 (en) * 1985-07-11 1987-01-14 Stc Plc Fibre optic network component
JPS6238041A (en) * 1985-08-13 1987-02-19 Nippon Telegr & Teleph Corp <Ntt> Optical access device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158739A (en) * 1984-01-27 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158740A (en) * 1984-01-27 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPH0314247B2 (en) * 1984-01-27 1991-02-26 Yokogawa Electric Corp
JPH0339417B2 (en) * 1984-01-27 1991-06-13 Yokogawa Electric Corp
JPS60158743A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158742A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPS60158741A (en) * 1984-01-30 1985-08-20 Yokogawa Hokushin Electric Corp Optical data way
JPH0314248B2 (en) * 1984-01-30 1991-02-26 Yokogawa Electric Corp
JPH0314249B2 (en) * 1984-01-30 1991-02-26 Yokogawa Electric Corp
JPS60220634A (en) * 1984-04-18 1985-11-05 Mitsubishi Electric Corp Optical data way device
EP0208504A2 (en) * 1985-07-11 1987-01-14 Stc Plc Fibre optic network component
JPS6238041A (en) * 1985-08-13 1987-02-19 Nippon Telegr & Teleph Corp <Ntt> Optical access device

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