JPS57132439A - Optical wireless communication system - Google Patents

Optical wireless communication system

Info

Publication number
JPS57132439A
JPS57132439A JP56016923A JP1692381A JPS57132439A JP S57132439 A JPS57132439 A JP S57132439A JP 56016923 A JP56016923 A JP 56016923A JP 1692381 A JP1692381 A JP 1692381A JP S57132439 A JPS57132439 A JP S57132439A
Authority
JP
Japan
Prior art keywords
optical
modules
wireless communication
communication system
optical wireless
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
JP56016923A
Other languages
Japanese (ja)
Inventor
Masataka Ito
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 JP56016923A priority Critical patent/JPS57132439A/en
Priority to DE19813139893 priority patent/DE3139893A1/en
Priority to US06/309,754 priority patent/US4450495A/en
Priority to FR8118950A priority patent/FR2492148B1/en
Publication of JPS57132439A publication Critical patent/JPS57132439A/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)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To increase the transmission quality and to achieve a number of transmission of data, by transmitting optical signals through the use of an optical polarized element with sequential scanning. CONSTITUTION:Modules 12, 13 transmits an optical signal 7 from an optical transmitter 6 to a specified direction by an optical polarization element 8. A scanner 9 incorporates the modules 12, 13 and is connected to a controller 10. In arranging the scanner 9 and the controller 10 on a ceiling of a room 11, the modules 12, 13 can transmit the optical signal 7 sequentially to optical receivers 14-19 in the room 11.
JP56016923A 1980-10-09 1981-02-09 Optical wireless communication system Pending JPS57132439A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP56016923A JPS57132439A (en) 1981-02-09 1981-02-09 Optical wireless communication system
DE19813139893 DE3139893A1 (en) 1980-10-09 1981-10-07 PORTABLE ACOUSTIC DEVICE
US06/309,754 US4450495A (en) 1980-10-09 1981-10-08 Portable acoustic device
FR8118950A FR2492148B1 (en) 1980-10-09 1981-10-08 PORTABLE SOUND APPARATUS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016923A JPS57132439A (en) 1981-02-09 1981-02-09 Optical wireless communication system

Publications (1)

Publication Number Publication Date
JPS57132439A true JPS57132439A (en) 1982-08-16

Family

ID=11929642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016923A Pending JPS57132439A (en) 1980-10-09 1981-02-09 Optical wireless communication system

Country Status (1)

Country Link
JP (1) JPS57132439A (en)

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