Optical communication device, method and system
AssigneeKetra, Inc.
InventorDavid J. Knapp
Life of this patent
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Abstract
Exemplary optical communication devices are described which, in certain embodiments, derive power optically from and communicate optically to a reading device. The communication devices may also receive data from modulated light from the reading device to achieve a bi-directional optical communication link between the self-powered optical communication device and the reading device. In some embodiments, the communication device is powered by ambient light, such as sunlight, captures data from a sensor, and communicates the stored data some time later to a reading device. In some embodiments, the communication device is powered locally and communicates through air, optical fiber, or other medium with another communication device.
Claims29
A communication device, comprising:
- a single optical device capable of emitting light;
- and
- circuitry coupled to the single optical device and configured to transmit and receive optical data using the single optical device.
A communication device, comprising:
- a single optical device capable of emitting light;
- and
- circuitry configured to generate power for the device from incident light on the single optical device and to transmit optical data from the device using the single optical device.
A system, comprising:
- a communication device, comprising:
- a single optical device capable of emitting light;
- and
- circuitry coupled to the single optical device and configured to transmit and receive optical data using the single optical device;
- and
- a reader configured to transmit and receive optical data from the communication device.
A system, comprising:
- a communication device, comprising:
- a single optical device capable of emitting light;
- and
- circuitry configured to generate power for the device from incident light on the single optical device and to transmit data from the device using the single optical device;
- and
- a reader configured to transmit and receive optical data from the communication device.
A method, comprising:
- receiving optical data with a communication device using an optical device;
- and
- transmitting data from the communication device using the same optical device.
A method, comprising:
- powering a communication device by incident light received via an optical device;
- and
- transmitting data from the communication device using the same optical device.
Dependencies are inferred from the claim text.