Statements (57)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
invention
|
| gptkbp:application |
wireless communication
|
| gptkbp:component |
mirror
light source lens photoelectric cell |
| gptkbp:firstAwarded |
1880
|
| gptkbp:function |
transmits sound via light
|
| gptkbp:hasDepartment |
distance
weather conditions |
| gptkbp:historicalSignificance |
pioneered optical communication
|
| https://www.w3.org/2000/01/rdf-schema#label |
photophone
|
| gptkbp:impact |
early optical systems
|
| gptkbp:influencedBy |
telephone
|
| gptkbp:inventor |
gptkb:Alexander_Graham_Bell
|
| gptkbp:patentNumber |
US246,186
|
| gptkbp:relatedPatent |
transmission line
data transmission digital communication amplitude modulation communication systems electromagnetic spectrum information theory signal integrity signal transmission communication protocols signal processing sound waves wave propagation network architecture waveform communication technology transmission medium frequency modulation light transmission telegraphy radio communication telecommunication systems light modulation optical fiber photodetector modulated light photoacoustic effect analog communication optical networking laser communication acoustic signal light wave optical signal acoustic_optics |
| gptkbp:relatedTo |
telecommunication
|
| gptkbp:successor |
fiber optic communication
|
| gptkbp:technology |
modulation of light
|
| gptkbp:type |
optical communication device
|
| gptkbp:uses |
visible light
infrared_light |
| gptkbp:yearEstablished |
1880
|