JPS568933A - Data transmission system with time-division multiplex and wavelength-division multiplex combined - Google Patents

Data transmission system with time-division multiplex and wavelength-division multiplex combined

Info

Publication number
JPS568933A
JPS568933A JP8420279A JP8420279A JPS568933A JP S568933 A JPS568933 A JP S568933A JP 8420279 A JP8420279 A JP 8420279A JP 8420279 A JP8420279 A JP 8420279A JP S568933 A JPS568933 A JP S568933A
Authority
JP
Japan
Prior art keywords
division multiplex
light
wavelength
emitting element
time
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
JP8420279A
Other languages
Japanese (ja)
Inventor
Yoshikazu Nishiwaki
Koichi Tsuno
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP8420279A priority Critical patent/JPS568933A/en
Publication of JPS568933A publication Critical patent/JPS568933A/en
Pending legal-status Critical Current

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
    • H04B10/25—Arrangements specific to fibre transmission

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

PURPOSE:To transmit a volume of data econimically by using properly a time- division multiplex system and wavelength-division multiplex system. CONSTITUTION:Bit-synchronizing signal generating circuit 1 and frame-synchronizing signal generating circuit 2 for the TDM (time-division multiplex) system, connected to light emitting element 7 emitting light of waveform lambda1 and light emitting element 7 emitting light of wavelength lambda2, output each light into single fiber cable 8. Analog signals such as aural signals from ratio set 4, etc., are input to light emitting element 7 that emits light of wavelength lambda3, which outputs AM- modulated light which corresponds to each aural signal. Further, sensors are connected to scanning circuit 5, where data are converted into series data of a TDM signal as a result of its scans, and they are led to light emitting element 7 emitting light of wavelength lambda4 before being output into single fiber cable 8.
JP8420279A 1979-07-03 1979-07-03 Data transmission system with time-division multiplex and wavelength-division multiplex combined Pending JPS568933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8420279A JPS568933A (en) 1979-07-03 1979-07-03 Data transmission system with time-division multiplex and wavelength-division multiplex combined

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8420279A JPS568933A (en) 1979-07-03 1979-07-03 Data transmission system with time-division multiplex and wavelength-division multiplex combined

Publications (1)

Publication Number Publication Date
JPS568933A true JPS568933A (en) 1981-01-29

Family

ID=13823886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8420279A Pending JPS568933A (en) 1979-07-03 1979-07-03 Data transmission system with time-division multiplex and wavelength-division multiplex combined

Country Status (1)

Country Link
JP (1) JPS568933A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178736U (en) * 1984-05-04 1985-11-27 松下精工株式会社 ceiling ventilation fan
JPS6131840A (en) * 1984-07-23 1986-02-14 Matsushita Seiko Co Ltd Ventilating fan for duct
JPS6486636A (en) * 1987-09-28 1989-03-31 Nippon Telegraph & Telephone Wavelength division optical switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122002A (en) * 1976-04-07 1977-10-13 Kokusai Denshin Denwa Co Ltd Light information transmitting system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52122002A (en) * 1976-04-07 1977-10-13 Kokusai Denshin Denwa Co Ltd Light information transmitting system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178736U (en) * 1984-05-04 1985-11-27 松下精工株式会社 ceiling ventilation fan
JPH0424339Y2 (en) * 1984-05-04 1992-06-09
JPS6131840A (en) * 1984-07-23 1986-02-14 Matsushita Seiko Co Ltd Ventilating fan for duct
JPS6486636A (en) * 1987-09-28 1989-03-31 Nippon Telegraph & Telephone Wavelength division optical switch

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