Visual prosthesis
First Claim
Patent Images
1. A visual prosthesis apparatus comprising:
- a camera for capturing a video image;
a video processing unit associated with the camera, the video processing unit configured to convert the video image to stimulation patterns, the video processing unit is configured to stop transmitting the stimulation patterns to the retinal stimulation system when the retinal stimulation system does not transmit valid back telemetry data; and
a retinal stimulation system configured to stop stimulating neural tissue in a subject'"'"'s eye, and return an error signal to the video processing unit, based on the stimulation patterns when an error is detected in a forward telemetry received from the video processing unit.
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Abstract
A visual prosthesis apparatus and a method for limiting power consumption in a visual prosthesis apparatus. The visual prosthesis apparatus comprises a camera for capturing a video image, a video processing unit associated with the camera, the video processing unit configured to convert the video image to stimulation patterns, and a retinal stimulation system configured to stop stimulating neural tissue in a subject'"'"'s eye based on the stimulation patterns when an error is detected in a forward telemetry received from the video processing unit.
72 Citations
12 Claims
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1. A visual prosthesis apparatus comprising:
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a camera for capturing a video image; a video processing unit associated with the camera, the video processing unit configured to convert the video image to stimulation patterns, the video processing unit is configured to stop transmitting the stimulation patterns to the retinal stimulation system when the retinal stimulation system does not transmit valid back telemetry data; and a retinal stimulation system configured to stop stimulating neural tissue in a subject'"'"'s eye, and return an error signal to the video processing unit, based on the stimulation patterns when an error is detected in a forward telemetry received from the video processing unit. - View Dependent Claims (2, 3, 4, 5)
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6. A method for limiting power consumption in a visual prosthesis apparatus comprising a retinal stimulation system and a video processing unit, the method comprising:
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determining if the retinal stimulation system is transmitting valid back telemetry data to the video processing unit by sending data without stimulation signals; and transmitting power and data to the retinal stimulation system only as long as the retinal stimulation system transmits the valid back telemetry data. - View Dependent Claims (7)
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8. A visual prosthesis apparatus comprising:
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a camera for capturing a video image; and a video processing unit associated with the camera and associated with a retinal stimulation system, wherein the video processing unit is configured to convert the video image to stimulation patterns and transmit the stimulation patterns to the retinal stimulation system for stimulation of neural tissue in a subject'"'"'s eye, and the video processing unit is configured to stop transmitting the stimulation patterns to the retinal stimulation system when the retinal stimulation system detects an error in a forward telemetry received from the video processing unit, and does not transmit valid, non-error, back telemetry data. - View Dependent Claims (9, 10, 11)
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12. A method for limiting power consumption in a visual prosthesis apparatus comprising a retinal stimulation system and a video processing unit, the method comprising:
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a) transmitting power and data via forward telemetry to the retinal stimulation system; b) determining if the retinal stimulation system is transmitting an error signal in the back telemetry to the video processing unit; c) stop transmitting the power and the data via forward telemetry to the retinal stimulation system when the retinal stimulation system does not transmit valid, non-error, back telemetry data; d) transmitting the power to the retinal stimulation system for a predetermined amount of time; e) determining if the retinal stimulation system is transmitting an error signal in the back telemetry during the predetermined amount of time; f) stop transmitting power to the retinal stimulation system when the retinal stimulation system transmits an error signal in the back telemetry during the predetermined amount of time; and g) repeating features d) through f) until the retinal stimulation system transmits the back telemetry without an error signal.
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Specification