USA as Represented by Secretary of the Navy

George W Whitaker

Andrew Christianson

Jeff Maas

Andrew Frink

Jeffrey Maas

Kenneth W O'Haver

An electromagnetic (EM) energy conversion and measurement system and related methods are provided for converting a first EM energy (e.g., infrared) to a second EM energy (e.g., visible light) having at least a different wavelength or frequency than the first EM energy then using a detector to detect or measure the second EM energy. An array of conversion and detector assemblies each include a first section and a second section. Exemplary first sections can include at least one optical grade substrate formed with a first material (e.g., germanium) having a first index of refraction that refracts a first EM energy so as to change a frequency and propagation time of the first EM energy to produce a second EM energy. Exemplary second sections include an EM energy detector having an index of refraction that is the same as the first material.

Systems and methods for converting, delaying, and measuring electromagnetic energy or wave(s) input within a first frequency range to one or more frequencies within a second frequency range with predetermined time delay(s) for use in applications including data collection, imaging or astronomy

A calibration method, applicable to element-level digital arrays operating in the receive mode, which utilizes the individual element plane wave spectra obtained from a single planar near-field scan. The method generates highly accurate near-field measurement derived amplitude and phase calibration of both large and small digital arrays as a function of array scan. The present disclosure provides digital array calibration methods and their potential uses in satellites and directional arrays.

Planar near-field calibration of digital arrays using element plane wave spectra

An apparatus and method associated with exploiting a characteristic in super-heterodyne receivers such that a modulated signal will be received on all channels simultaneously regardless of the channel selected on the receiver.

Apparatus and methods of accessing all channels of a superheterodyne receiver simultaneously

An apparatus and method associated with amplifying piezoelectric sonic and ultrasonic outputs is presented which provides high power output from piezoelectric devices, especially at high ultrasonic frequencies, in open air, which mitigates or eliminates overheating of the piezoelectric devices when stimulated at or near their peak outputs for extended periods. In addition, the invention provides a means of amplifying a piezoelectric sonic and ultrasonic device if a desired output power exceeds a normal maximum capability of the piezoelectric device.

Apparatus and methods of tuning and amplifying piezoelectric sonic and ultrasonic outputs

A process for manufacturing a wave energy emitter and a system for manufacturing the same.

Process for manufacturing a plurality of wave energy emitters

A communication system and method for using a communication system is provided. An embodiment of an exemplary system can include different communication sets adapted to communicate with each other in different orientations/while moving in a highly secure manner. A first communications system embodiment can include a plurality of segmented fractal antennas and a communications data encoding and/or decoding system adapted to receive communication data and parse such communication data into groups or bins for transmission through an associated segment of the segmented fractal antennas. A second communication system embodiment of the invention has an identical or substantially identical segmented fractal as the first communication system embodiment's plurality of segmented fractal antennas and a communications data encoding and/or decoding system which receives signals sent by the first system and decodes received communications data.

Fractal dipole antenna communication systems and related methods and use

An apparatus and methods are provided to realize an input waveform using wavelet processing and reconstruction via separated antenna array systems having different beam paths and different frequency components which can include phased array transmitters to recreate the input waveform in medical applications. One aspect of the invention can include a wavelet function used for the examples shown herein which includes a first and second moments of a statistical function, i.e. the mean and variance used with an inverse wavelet to create rectangular pulses that lend themselves to use in the invention herein. Other embodiments of the invention can use other input waveform separation functions paired with signal separation and recombination at a focus point. A selected function can be matched to its application associated with avoidance of sending the input waveform along a single beam path, a desired a focus point, and separation of an input signal.

Medical apparatus and methods including an array system for segmenting signals and generating a complex waveform at a focal point using recombination of segmented signals

An apparatus and method for signal emitters determining and using a reduced number of discrete frequency transmitters based on frequency segmentation and degradation analysis of a candidate filter configuration compared to an original waveform input signal for acceptability determination in view of desired system parameters. A method that configures a device to produce a complex waveform over a desired range of frequencies is provided. Configuring a device can include filtering to reduce a number of frequencies which in turn is used to reduce signal emitters and configuring resulting reduced signal emitters includes producing a desired complex waveform over a desired range of frequencies.

Apparatus and method for producing or reproducing a complex waveform over a wide frequency range while minimizing degradation and number of discrete emitters

An apparatus and methods are provided to realize an input waveform using wavelet processing and reconstruction via separated antenna array systems having different beam paths and different frequency components which can include phased array transmitters to recreate the input waveform. One aspect of the invention can include a wavelet function used for the examples shown herein which includes a first and second moments of a statistical function, i.e. the mean and variance used with an inverse wavelet to create rectangular pulses that lend themselves to use in the invention herein. Other embodiments of the invention can use other input waveform separation functions paired with signal separation and recombination at a focus point. A selected function can be matched to its application associated with avoidance of sending the input waveform along a single beam path, a desired a focus point, and separation of an input signal.

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Albuquerque, NM, United States of America

George W Whitaker