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US 8,948,718 B2Granted
Devices and methods using the Hermetic Transform
AssigneeHobbit Wave, Inc.
InventorHarvey C. Woodsum
Life of this patent
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Abstract
Systems and methods are described using a Hermetic Transform, as well as related transforms, for applications such as directional reception and/or transmit of signals using phased-array devices and systems. The systems and methods an include identifying a direction of arrival for a mobile communicating device.
Claims9
A system comprising:
- a plurality of N elements for receiving signals;
- analog to digital circuitry for processing the received signals to produce digital signals;
- a processor for receiving signals corresponding to a plurality of beam directions and forming the signals in a matrix, including for one beam direction, setting values to zero to derive a covariance matrix from signal arrivals from other beam directions other than the one direction, and deriving a beam vector from a signal vector and the covariance matrix.
A method comprising:
- receiving analog signals with a plurality of N elements;
- processing the received signals to produce digital signals;
- receiving signals corresponding to a plurality of beam directions and forming the signals in a matrix, including for one beam direction, setting values to zero to derive a covariance matrix from signal arrivals from other beam directions other than the one direction;
- and
- deriving a beam vector from a signal vector and the covariance matrix.
2 more elements
Dependencies are inferred from the claim text.