| 摘要 |
A LED system ( 100 ) for illumination and data transmission employs a LED driver ( 110 ), an electronic switch ( 130 ), and an illumination unit ( 150 ). In a first illumination state, illumination unit ( 150 ) receives LED current(s) from LED driver ( 110 ) to emit a first light output. In a second illumination state, the illumination unit ( 150 ) receives additional LED current(s) from LED driver 110 via the electronic switch as controlled by the LED driver where the illumination unit ( 150 ) additionally emits a second light output. LED system ( 100 ) optically communicates a data bit with each transition of the illumination unit ( 150 ) from the first illumination state to the second illumination state, and vice-versa.
|
