Interface for transferring data between a non-rotating body and a rotating body
First Claim
1. A sensor assembly comprising:
- a rotating body;
a non-rotating body positioned adjacent to the rotating body such that the rotating body rotates about an axis of rotation that passes through the non-rotating body;
a first optical transmitter coupled to the rotating body and configured to transmit first light representing first data signals;
a first optical receiver coupled to the non-rotating body and configured to receive the first light representing the first data signals;
a second optical transmitter coupled to the non-rotating body and configured to transmit second light representing second data signals;
a second optical receiver coupled to the rotating body and configured to receive the second light representing the second data signals;
a first beam splitter coupled to the non-rotating body and configured to reflect at least a portion of the first light toward the first optical receiver and transmit at least a portion of the second light from the second optical transmitter; and
a second beam splitter coupled to the rotating body and configured to reflect at least a portion of the second light toward the second optical receiver and transmit at least a portion of the first light from the first optical transmitter.
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Accused Products
Abstract
An interface for transferring data between a non-rotating body and a rotating body of a sensor assembly using a bidirectional communication link. For instance, the interface may include a first data transmitter coupled to the rotating body and configured to transmit first data signals representing sensor signals generated by the sensor assembly. A first data receiver is coupled to the non-rotating body and configured to receive the first data signals via a first wireless coupling. The interface further includes a second data transmitter coupled to the non-rotating body and configured to transmit second data signals. A second data receiver is coupled to the rotating body and configured to receive the second data signals via a second wireless coupling. In some instances, the first data signals may be transmitted using a first wavelength and the second data signals may be transmitted using a second, different wavelength.
97 Citations
18 Claims
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1. A sensor assembly comprising:
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a rotating body; a non-rotating body positioned adjacent to the rotating body such that the rotating body rotates about an axis of rotation that passes through the non-rotating body; a first optical transmitter coupled to the rotating body and configured to transmit first light representing first data signals; a first optical receiver coupled to the non-rotating body and configured to receive the first light representing the first data signals; a second optical transmitter coupled to the non-rotating body and configured to transmit second light representing second data signals; a second optical receiver coupled to the rotating body and configured to receive the second light representing the second data signals; a first beam splitter coupled to the non-rotating body and configured to reflect at least a portion of the first light toward the first optical receiver and transmit at least a portion of the second light from the second optical transmitter; and a second beam splitter coupled to the rotating body and configured to reflect at least a portion of the second light toward the second optical receiver and transmit at least a portion of the first light from the first optical transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An interface for transferring data between a non-rotating body and a rotating body having an axis of rotation, the interface comprising:
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a first data transmitter coupled to the rotating body and configured to emit first light representing first data signals; a first data receiver coupled to the non-rotating body and configured to receive the first light from the first data transmitter; a second data transmitter coupled to the non-rotating body and configured to emit second light representing second data signals; a second data receiver coupled to the rotating body and configured to receive the second light from the second data transmitter; a first beam splitter coupled to the non-rotating body and configured to reflect at least a portion of the first light toward the first data receiver and transmit at least a portion of the second light from the second data transmitter; and a second beam splitter coupled to the rotating body and configured to reflect at least a portion of the second light toward the second data receiver and transmit at least a portion of the first light from the first data transmitter. - View Dependent Claims (10, 11, 12, 13, 17, 18)
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14. A method comprising:
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generating sensor signals from one or more sensors disposed about a rotating body of a sensor assembly, wherein the rotating body is configured to rotate about an axis of rotation that passes through a non-rotating body of the sensor assembly; emitting, using a first data transmitter coupled to the rotating body, first light that represents first data signals, the first data signals representing the sensor signals; receiving, using a first data receiver coupled to the non-rotating body, the first light; emitting, using a second data transmitter coupled to the non-rotating body, second light that represents second data signals; receiving, using a second data receiver coupled to the rotating body, the second data light; causing, using a first beam splitter coupled to the non-rotating body, at least a portion of the first light to be reflected toward the first data receiver; and causing, using a second beam splitter coupled to the rotating body, at least a portion of the second light to be reflected toward the second data. - View Dependent Claims (15, 16)
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Specification