JPS6486725A - Optical space transmission method for video and audio - Google Patents
Optical space transmission method for video and audioInfo
- Publication number
- JPS6486725A JPS6486725A JP62245104A JP24510487A JPS6486725A JP S6486725 A JPS6486725 A JP S6486725A JP 62245104 A JP62245104 A JP 62245104A JP 24510487 A JP24510487 A JP 24510487A JP S6486725 A JPS6486725 A JP S6486725A
- Authority
- JP
- Japan
- Prior art keywords
- video
- audio
- transmitted
- signals
- sound
- 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
Abstract
PURPOSE:To transmit signals in a narrow band by using LEDs different in emission wavelength to transmit a video signal and an audio signal from different optical transmission systems without mixing both signals. CONSTITUTION:On the optical transmission side, the video signal is transmitted by the transmission system consisting of a video modulating part 1, a video amplifying part 2, an LED driving part 3 for video, and an LED 4 for video, and the audio signal is transmitted by the transmission system consisting of an audio modulating part 5, an audio amplifying part 6, an LED driving part 7 for sound, and an LED 8 for sound. On the reception side, the video signal is received through an optical filter for video which permits lambdav to pass through but cuts off lambdaA, and the audio signal is received through an optical filter 13 for sound which permits lambdaA to pass through but cuts off lambdav. Thus, cross modulation between both signals does not occur, and both signals are transmitted in a band narrower than that of a conventional method because they can be transmitted in the same frequency band.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245104A JPS6486725A (en) | 1987-09-29 | 1987-09-29 | Optical space transmission method for video and audio |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62245104A JPS6486725A (en) | 1987-09-29 | 1987-09-29 | Optical space transmission method for video and audio |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6486725A true JPS6486725A (en) | 1989-03-31 |
Family
ID=17128672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62245104A Pending JPS6486725A (en) | 1987-09-29 | 1987-09-29 | Optical space transmission method for video and audio |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6486725A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008199172A (en) * | 2007-02-09 | 2008-08-28 | Sharp Corp | Spatial optical transmitter and spatial optical transmission system using the same |
CN102562984A (en) * | 2012-01-19 | 2012-07-11 | 陈军 | Self-balancing assistance lifting device |
-
1987
- 1987-09-29 JP JP62245104A patent/JPS6486725A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008199172A (en) * | 2007-02-09 | 2008-08-28 | Sharp Corp | Spatial optical transmitter and spatial optical transmission system using the same |
CN102562984A (en) * | 2012-01-19 | 2012-07-11 | 陈军 | Self-balancing assistance lifting device |
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