Optical wireless communication system
AssigneepureLiFi Limited
InventorArne Rossius
Life of this patent
Estimating the term…
Abstract
An optical wireless communication system comprises a signal providing apparatus configured to provide a data signal, a driver apparatus separate from the signal providing apparatus and coupled to the signal providing apparatus by a signal cable, wherein the driver apparatus is configured to receive the data signal via the signal cable and to process the data signal to produce a driving signal, and a luminaire comprising a modulateable light source, wherein the modulateable light source is configured to be driven by the driving signal, thereby to produce modulated light, wherein the driver apparatus is positioned adjacent to or within the luminaire.
Claims32
An optical wireless communication system comprising:
- a signal providing apparatus configured to receive an initial data signal from a data source and generate, based on the initial data signal, a data signal in accordance with a modulation scheme,
- wherein the initial data signal is provided according to a further, different modulation scheme;
- the signal providing apparatus is further configured to alter the modulation scheme from the further modulation scheme of the initial data signal to the modulation scheme of the data signal,
- wherein the data signal comprises a communication signal in accordance with a selected communication protocol;
- a driver apparatus remote from the signal providing apparatus and coupled to the signal providing apparatus by a signal cable having a length of at least 10 cm;
- a power cable configured to provide power to the driving apparatus,
- wherein the driver apparatus is configured to receive the data signal via the signal cable and to receive power via the power cable;
- the driver apparatus is further configured to process the data signal to produce a driving signal, the driving signal having a higher power than the data signal;
- and
- a luminaire comprising a modulateable light source, wherein the modulateable light source is configured to be driven by the driving signal, thereby to produce modulated light,
- wherein the driver apparatus is positioned adjacent to or within the luminaire.
An optical wireless communication system comprising:
- a signal providing apparatus configured to receive an initial data signal from a data source and generate, based on the initial data signal, a data signal in accordance with a modulation scheme, wherein the initial data signal is provided according to a further, different modulation scheme, and the signal providing apparatus is configured to alter the modulation scheme from the further modulation scheme of the initial data signal to the modulation scheme of the data signal,
- wherein the data signal comprises a communication signal in accordance with a selected communication protocol;
- a plurality of driver apparatuses and corresponding plurality of luminaires, wherein each of the plurality of driver apparatuses is positioned adjacent to or within a corresponding one of the plurality of luminaires;
- wherein each of the plurality of driver apparatuses is remote from the signal providing apparatus and is coupled to the signal providing by at least one signal cable having a a length of at least 10 cm;
- and
- wherein each of the plurality of driver apparatuses is configured to receive the data signal via the at least one signal cable and to process the data signal to produce a driving signal to drive a modulateable light source of the corresponding one of the plurality of luminaires, the driving signal having a higher power than the data signal, and the modulateable light source thereby producing modulated light.
Dependencies are inferred from the claim text.