JPS5691542A - Data transmitter - Google Patents

Data transmitter

Info

Publication number
JPS5691542A
JPS5691542A JP16824279A JP16824279A JPS5691542A JP S5691542 A JPS5691542 A JP S5691542A JP 16824279 A JP16824279 A JP 16824279A JP 16824279 A JP16824279 A JP 16824279A JP S5691542 A JPS5691542 A JP S5691542A
Authority
JP
Japan
Prior art keywords
signal
data
circuit
wavelength
cable
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
JP16824279A
Other languages
Japanese (ja)
Inventor
Hiroshi Tanaka
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 JP16824279A priority Critical patent/JPS5691542A/en
Publication of JPS5691542A publication Critical patent/JPS5691542A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems

Abstract

PURPOSE:To simplify the data part of data transmisson, by providing a plurality of stations, an optical fiber cable connecting those stations together, and a pair of transmission wavelengths for transmitting a data signal and synchronizing signals separately via the cable. CONSTITUTION:In optical transmission, since wavelength multiplexing is possible, a pair of transmission wavelengths are used and while a data signal is sent with one wavelength, a synchronizing signal is transmitted with the other wavelength via optical fiber cable 101. The signal sent via cable 101 is received by optical receiving circuit 102. The signal from optical receiving circuit 102 is separated by branching filter circuit 103 into the data signal and synchronizing signal. Signal extracting circuit 104 extracts the data signal by using the synchronizing signal. Signal extracting circuit 104 extracts the data signal by using the synchronizing signal separated by circuit 103 and it is sent to station control part 4 via received signal line 5. In data transmission, the signals are mixed by wavelength mixing circuit 105 and transmitted to cable 101'.
JP16824279A 1979-12-26 1979-12-26 Data transmitter Pending JPS5691542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16824279A JPS5691542A (en) 1979-12-26 1979-12-26 Data transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16824279A JPS5691542A (en) 1979-12-26 1979-12-26 Data transmitter

Publications (1)

Publication Number Publication Date
JPS5691542A true JPS5691542A (en) 1981-07-24

Family

ID=15864388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16824279A Pending JPS5691542A (en) 1979-12-26 1979-12-26 Data transmitter

Country Status (1)

Country Link
JP (1) JPS5691542A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368566A2 (en) * 1988-11-08 1990-05-16 Stc Plc Synchronous multifrequency optical network
JPH0767155A (en) * 1991-07-31 1995-03-10 At & T Corp Optical system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0368566A2 (en) * 1988-11-08 1990-05-16 Stc Plc Synchronous multifrequency optical network
EP0368566A3 (en) * 1988-11-08 1991-07-10 Stc Plc Synchronous multifrequency optical network
JPH0767155A (en) * 1991-07-31 1995-03-10 At & T Corp Optical system

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