Walsh encoding for peripheral sensor interface 5
First Claim
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1. A group of sensors, comprising:
- a first sensor to;
encode first data using a first encoding scheme,the first encoding scheme including encoding a data bit, included in the first data, using a first chip sequence that corresponds to a first set of current levels; and
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modulate a first current, based on the first set of current levels, to provide encoded first data; and
a second sensor to;
encode second data using a second encoding scheme,the second encoding scheme encoding a data bit, included in the second data, using a second chip sequence that corresponds to a second set of current levels,the first chip sequence and the second chip sequence being different chip sequences; and
modulate a second current, based on the second set of current levels, to provide encoded second data.
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Abstract
A sensor may encode data using a first encoding scheme. The first encoding scheme may include encoding a data bit, included in the data, using a first chip sequence that corresponds to a first set of current levels. A second encoding scheme may be used by another sensor to encode other data. The second encoding scheme may include encoding a data bit, included in the other data, using a second chip sequence that corresponds to a second set of current levels. The first chip sequence and the second chip sequence being different chip sequences. The sensor may modulate a current, based on the first set of current levels, to provide the encoded data.
9 Citations
20 Claims
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1. A group of sensors, comprising:
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a first sensor to; encode first data using a first encoding scheme, the first encoding scheme including encoding a data bit, included in the first data, using a first chip sequence that corresponds to a first set of current levels; and
;modulate a first current, based on the first set of current levels, to provide encoded first data; and a second sensor to; encode second data using a second encoding scheme, the second encoding scheme encoding a data bit, included in the second data, using a second chip sequence that corresponds to a second set of current levels, the first chip sequence and the second chip sequence being different chip sequences; and modulate a second current, based on the second set of current levels, to provide encoded second data. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A control unit, comprising:
a converter to; convert first analog signals, received via a peripheral sensor interface and from a first sensor, to current values corresponding to first encoded data, and convert second analog signals, received via the peripheral sensor interface and from a second sensor, to current values corresponding to second encoded data and one or more receivers to; decode the first encoded data using a first portion of a Hadamard matrix, and decode the second encoded data using a second portion of the Hadamard matrix, the second portion of the Hadamard matrix being different than the first Portion of the Hadamard matrix. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method, comprising:
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encoding, by a first sensor, first data using a first encoding scheme, the first encoding scheme including encoding a data bit, included in the first data, based on a first chip sequence that corresponds to a first set of current levels; providing, by the first sensor and by modulating a first current, encoded first data to a control unit via a peripheral sensor interface; encoding, by a second sensor, second data using a second encoding scheme, the second encoding scheme including encoding a data bit, included in the second data, based on a second chip sequence that corresponds to a second set of current levels, the first chip sequence being different than the second chip sequence; providing, by the second sensor and by modulating a second current, encoded first data to the control unit via the peripheral sensor interface; and decoding, by the control unit, the encoded first data based on the first encoding scheme and the encoded second data based on the second encoding scheme. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification