JPS55166354A - Signal optical transmitter - Google Patents

Signal optical transmitter

Info

Publication number
JPS55166354A
JPS55166354A JP7433279A JP7433279A JPS55166354A JP S55166354 A JPS55166354 A JP S55166354A JP 7433279 A JP7433279 A JP 7433279A JP 7433279 A JP7433279 A JP 7433279A JP S55166354 A JPS55166354 A JP S55166354A
Authority
JP
Japan
Prior art keywords
signal
shaft
relative motion
converting circuit
signals
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
JP7433279A
Other languages
Japanese (ja)
Inventor
Yoshio Saitou
Koichi Ooyama
Noboru Sugawara
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.)
National Aerospace Laboratory of Japan
Original Assignee
National Aerospace Laboratory of Japan
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 National Aerospace Laboratory of Japan filed Critical National Aerospace Laboratory of Japan
Priority to JP7433279A priority Critical patent/JPS55166354A/en
Publication of JPS55166354A publication Critical patent/JPS55166354A/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
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections

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 eliminate the external noise or the interference given from other channels for the signal transmission between the substances having the relative motion, by using the optical pulse signal. Thus the good signal transmission is ensured. CONSTITUTION:With application of input signals Si1, Si2 and Si3 to VF converting circuit 15, the corresponding pulse signals are delivered to light up LEDs 14a-14c. On the other hand, phototransistors 24a-24c receive the light reception amount of more than the fixed value at all times regardless of the turning of shaft 11, and each output of transistors 24a-24c is demodulated at FV converting circuit 25. Thus outputs S01, S02 and S03 which are equal to the original signal are obtained. In such way, the signal transfer can be carried out smoothly for the signals under the relative motion between shaft 11 and still axle 21.
JP7433279A 1979-06-13 1979-06-13 Signal optical transmitter Pending JPS55166354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7433279A JPS55166354A (en) 1979-06-13 1979-06-13 Signal optical transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7433279A JPS55166354A (en) 1979-06-13 1979-06-13 Signal optical transmitter

Publications (1)

Publication Number Publication Date
JPS55166354A true JPS55166354A (en) 1980-12-25

Family

ID=13544051

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7433279A Pending JPS55166354A (en) 1979-06-13 1979-06-13 Signal optical transmitter

Country Status (1)

Country Link
JP (1) JPS55166354A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672214A (en) * 1984-07-06 1987-06-09 Honda Giken Kogyo Kabushiki Kaisha Optical switch having light source and receiver positioned stationary relative to steering wheel
JPS6418310U (en) * 1987-07-20 1989-01-30

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235904A (en) * 1975-09-16 1977-03-18 Nec Corp Photo communiction unit with photo sending angle variable set
JPS5443053A (en) * 1977-09-12 1979-04-05 Hitachi Ltd Signal transmission device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5235904A (en) * 1975-09-16 1977-03-18 Nec Corp Photo communiction unit with photo sending angle variable set
JPS5443053A (en) * 1977-09-12 1979-04-05 Hitachi Ltd Signal transmission device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672214A (en) * 1984-07-06 1987-06-09 Honda Giken Kogyo Kabushiki Kaisha Optical switch having light source and receiver positioned stationary relative to steering wheel
JPS6418310U (en) * 1987-07-20 1989-01-30

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