Method and system for data transmission and communication using imperceptible differences in visible light
First Claim
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1. A lighting system for data communication, comprising:
- a light source configured to emit light;
an input device for receiving authentication data, the authentication data being used to modulate the light emitted by the light source;
a processing device configured to receive data for communication and generate a signal encoded with the received data;
a modulator configured to modulate light emitted by the light source using the authentication data received by the input device, wherein the modulation is imperceptible to the human eye, undetectable by sensors, includes the encoded signal, and is specific to an operator of a vehicle associated with the light source;
a receiver tuned and configured to receive the modulated light including the encoded data and convert the received light to a current signal, and identify the operator and the vehicle; and
a filter for filtering noise from the received modulated light based on ambient light or light from external sources.
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Abstract
An exemplary system for communicating data includes a light source that emits light and a processing device that receives and encodes data into a communication signal. A modulator modulates light emitted by the light source, wherein the modulation is imperceptible to the human eye, and the modulated light includes the encoded data. The modulation of the transmitted light is imperceptible to a human eye. A receiving device receives the modulated light and processes the light to decode the encoded signal and obtain the data.
6 Citations
23 Claims
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1. A lighting system for data communication, comprising:
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a light source configured to emit light; an input device for receiving authentication data, the authentication data being used to modulate the light emitted by the light source; a processing device configured to receive data for communication and generate a signal encoded with the received data; a modulator configured to modulate light emitted by the light source using the authentication data received by the input device, wherein the modulation is imperceptible to the human eye, undetectable by sensors, includes the encoded signal, and is specific to an operator of a vehicle associated with the light source; a receiver tuned and configured to receive the modulated light including the encoded data and convert the received light to a current signal, and identify the operator and the vehicle; and a filter for filtering noise from the received modulated light based on ambient light or light from external sources. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 23)
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13. A lighting system for communicating data, comprising:
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an input device configured to receive data for communication; an encoding device configured to generate a signal encoded with the received data; a light source arranged on a vehicle and configured to emit light; an input device for receiving authentication data, the authentication data being used to modulate the light emitted by the light source; a modulator configured to modulate light emitted by the light source using the authentication data received at the input device, wherein the modulation is imperceptible to the human eye, undetectable by sensors, includes the encoded signal, and is specific to an operator of the vehicle; a receiver tuned and configured to receive the modulated light including the encoded signal and convert the received light to a current signal, the receiver including a filter for filtering noise from the received modulated light based on ambient light or light from external sources, and identify the vehicle based on the modulation; a decoding device configured to obtain the encoded data from the current signal, decode the encoded data; and an interface configured to generate an output based on the decoded data. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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21. A method for communicating data using light, comprising:
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inputting, by a processing device, data to be communicated; encoding, by the processing device, the data to be communicated into a signal; inputting authentication data to the processor via an input device; transmitting light via a light source; modulating, using the authentication data identifying the light source, the transmitted light to transmit the encoded signal, wherein the modulation of the transmitted light is imperceptible to a human eye, undetectable by sensors and is specific to an operator; receiving, by a receiving device, the modulated light; filtering the received light or resulting converted signal from the light to reduce noise from external light sources; identifying, based on changes in the modulated light that are imperceptible to the human eye, a vehicle associated with the light source and controlled by the operator; and decoding the signal to obtain the encoded data. - View Dependent Claims (22)
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Specification