Millimeter wave sensor system
First Claim
1. A system comprising:
- a helmet-mountable device comprising;
a radio frequency (RF) source of a millimeter wave signal comprising millimeter wave radiation; and
a head-mountable device comprising;
a plurality of rectenna devices, wherein each rectenna device of the plurality of rectenna devices converts millimeter wave radiation emitted by the RF source into a direct current (DC) electrical signal;
a memory; and
at least one processor, wherein the at least one processor executes instructions stored in the memory so as to carry out operations, the operations comprising;
receiving, from each rectenna device of the plurality of rectenna devices, a respective DC electrical signal; and
storing, in the memory, information indicative of the respective DC electrical signals.
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Accused Products
Abstract
Systems and methods are described that relate to measuring relative positions of, or distance between, a helmet-mountable device and a head-mountable device. The helmet-mountable device includes a radio frequency (RF) source of a millimeter wave signal comprising millimeter wave radiation. The head-mountable device includes a plurality of rectenna devices. Each rectenna device of the plurality of rectenna devices converts millimeter wave radiation emitted by the RF source into a direct current (DC) electrical signal. The head-mountable device includes a memory and at least one processor. The at least one processor executes instructions stored in the memory so as to carry out operations, which include receiving, from each rectenna device of the plurality of rectenna devices, a respective DC electrical signal. The operations also include storing, in the memory, information indicative of the respective DC electrical signals.
5 Citations
20 Claims
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1. A system comprising:
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a helmet-mountable device comprising; a radio frequency (RF) source of a millimeter wave signal comprising millimeter wave radiation; and a head-mountable device comprising; a plurality of rectenna devices, wherein each rectenna device of the plurality of rectenna devices converts millimeter wave radiation emitted by the RF source into a direct current (DC) electrical signal; a memory; and at least one processor, wherein the at least one processor executes instructions stored in the memory so as to carry out operations, the operations comprising; receiving, from each rectenna device of the plurality of rectenna devices, a respective DC electrical signal; and storing, in the memory, information indicative of the respective DC electrical signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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causing a radio frequency (RF) source in a helmet-mountable device to emit a millimeter wave signal comprising millimeter wave radiation; converting, by each rectenna device of a plurality of rectenna devices in a head-mountable device, at least a portion of the millimeter wave signal into a respective DC electrical signal; determining, based on the respective DC electrical signals of the plurality of rectenna devices, a relative position between the RF source and the plurality of rectenna devices; and storing, in a memory, information indicative of the relative position. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A system comprising:
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a radio frequency (RF) source of a millimeter wave signal comprising millimeter wave radiation; a plurality of rectenna devices, wherein each rectenna device of the plurality of rectenna devices converts millimeter wave radiation emitted by the RF source into a direct current (DC) electrical signal; a memory; and at least one processor, wherein the at least one processor executes instructions stored in the memory so as to carry out operations, the operations comprising; receiving, from each rectenna device of the plurality of rectenna devices, a respective DC electrical signal; storing, in the memory, information indicative of the respective DC electrical signals; determining, based on the respective DC electrical signals, a relative position between the RF source and the plurality of rectenna devices; and storing, in the memory, information indicative of the relative position. - View Dependent Claims (19, 20)
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Specification