JPS57170638A - Information space transmission system by optical beam - Google Patents
Information space transmission system by optical beamInfo
- Publication number
- JPS57170638A JPS57170638A JP56055941A JP5594181A JPS57170638A JP S57170638 A JPS57170638 A JP S57170638A JP 56055941 A JP56055941 A JP 56055941A JP 5594181 A JP5594181 A JP 5594181A JP S57170638 A JPS57170638 A JP S57170638A
- Authority
- JP
- Japan
- Prior art keywords
- optical beam
- track
- photodetector
- moves
- moving body
- 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
Links
Classifications
-
- H04B10/22—
Landscapes
- Optical Communication System (AREA)
Abstract
PURPOSE:To prevent noise by performing communication between a mobile station on a body which moves on a constant track and fixed stations fixed near and along said track by using an information space transmitter which consists of a phototransmitter and a photodetector and uses an optical beam. CONSTITUTION:A photodetector 33 is installed on a moving body 31 which moves on a constant track A, and phototransmitters are fixed near and along the track A. Then, a video signal, an audio signal, a control signal, etc., from a television camera, etc., are converted into optical beam signals and sent out into the space by the phototransmitter 32, and they are received by the photodetector 33 provided on the moving body 31, thus performing communication. As the moving body 31 moves as shown by an arrow P, the transmitters 32 in use are changed successively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56055941A JPS57170638A (en) | 1981-04-14 | 1981-04-14 | Information space transmission system by optical beam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56055941A JPS57170638A (en) | 1981-04-14 | 1981-04-14 | Information space transmission system by optical beam |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57170638A true JPS57170638A (en) | 1982-10-20 |
Family
ID=13013097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56055941A Pending JPS57170638A (en) | 1981-04-14 | 1981-04-14 | Information space transmission system by optical beam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57170638A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6216635A (en) * | 1985-07-15 | 1987-01-24 | Sendaishi Kotsu Jigiyou Kanrishiya | Optical space transmission device against moving body |
JPS6216636A (en) * | 1985-07-15 | 1987-01-24 | Sendaishi Kotsu Jigiyou Kanrishiya | Optical space transmission device against moving body |
JPH0739137U (en) * | 1994-06-16 | 1995-07-14 | 仙台市 | Optical space transmission device for mobiles |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4852101A (en) * | 1971-10-29 | 1973-07-21 | ||
JPS5129001A (en) * | 1974-09-06 | 1976-03-11 | Kyosan Electric Mfg | |
JPS5567253A (en) * | 1978-11-15 | 1980-05-21 | Hitachi Ltd | Signal transmission unit |
JPS5586233A (en) * | 1978-12-22 | 1980-06-28 | Nec Corp | Photo information transmission system for route moving vehicle |
-
1981
- 1981-04-14 JP JP56055941A patent/JPS57170638A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4852101A (en) * | 1971-10-29 | 1973-07-21 | ||
JPS5129001A (en) * | 1974-09-06 | 1976-03-11 | Kyosan Electric Mfg | |
JPS5567253A (en) * | 1978-11-15 | 1980-05-21 | Hitachi Ltd | Signal transmission unit |
JPS5586233A (en) * | 1978-12-22 | 1980-06-28 | Nec Corp | Photo information transmission system for route moving vehicle |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6216635A (en) * | 1985-07-15 | 1987-01-24 | Sendaishi Kotsu Jigiyou Kanrishiya | Optical space transmission device against moving body |
JPS6216636A (en) * | 1985-07-15 | 1987-01-24 | Sendaishi Kotsu Jigiyou Kanrishiya | Optical space transmission device against moving body |
JPH0739137U (en) * | 1994-06-16 | 1995-07-14 | 仙台市 | Optical space transmission device for mobiles |
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