Abstract

Systems, methods, and computer-readable storage media for generating and utilizing radar signals with embedded data are disclosed. Data is encoded onto a CPM waveform, which is then combined with a base radar waveform to produce a radar-embedded communication (REC) waveform. Both the CPM waveform and the base radar waveform may have a continuous phase and constant envelope, resulting in the REC waveform having a continuous phase and constant envelope. The changing (e.g., on a pulse-to-pulse basis) nature of the REC waveform causes RSM of clutter which may result in residual clutter after clutter cancellation, decreasing target detection performance of the radar system. In an aspect, various parameters may be utilized to dynamically adjust the performance of the radar system for a particular operating scenario, such as to enhance radar signal processing or enhance data communication capabilities.

IPC Classes  ?

• G01S 13/34 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
• G01S 13/32 - Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
• G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles
• G01S 13/87 - Combinations of radar systems, e.g. primary radar and secondary radar

Abstract

Systems, methods, and computer-readable storage media for generating, transmitting, and utilizing a composite radar and communication waveform are disclosed. The composite radar and communication waveform may facilitate radar detection and data communication operations and may be generated from a frequency modulated (FM) radar waveform and a communication signal. In an aspect, the composite radar and communication waveform may be generated by iteratively executing a shaping process against the FM radar waveform and the communication signal until a first stop criterion is satisfied to produce an initial composite radar and communication waveform having the communication signal embedded therein, and then iteratively executing an enhancement process against the initial composite radar waveform and the communication signal until a second stop criterion is satisfied to produce a final composite radar and communication waveform suitable for both radar detection and data communication operations.

IPC Classes  ?

• H04K 3/00 - Jamming of communication; Counter-measures
• H04J 11/00 - Orthogonal multiplex systems

Abstract

The present application discloses a new form of µ-STAP, referred to herein as post µ-STAP or Pµ-STAP, which overcomes the drawbacks associated with existing µ-STAP techniques. The Pµ-STAP techniques described herein facilitate the generation of additional training data and homogenization after pulse compression. For example, Pµ-STAP techniques may apply a plurality of homogenization filters to a pulse compressed datacube generated from an input radar waveform, which produces a plurality of new pulse compressed datacubes with improved characteristics. Unlike existing µ-STAP techniques described above, which require pre-pulse compressed data to operate, the Pµ-STAP techniques disclosed in the present application are designed to utilize pulse compressed data, and therefore may be readily applied to legacy radar systems.

IPC Classes  ?

• G01S 13/524 - Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
• G01S 7/288 - Coherent receivers

Abstract

A wearable sweat sensor device (1) may include a plurality of sensors (150, 160, 170, 180) capable of measuring a plurality of ion-selective biomarker potentials and a mechanism that analyzes a combination of measurements as a proxy for one or more physiological conditions such as muscle activity, exertion, or tissue damage. A device may include a sensor capable of taking at least one skin impedance measurement along with a plurality of sensors (150, 160, 170, 180) and a mechanism that analyzes a combination of measurements as a proxy for one or more physiological conditions, such as hydration or sweat rate. Because several of said sensors (150, 160, 170, 180) may not be stable when stored if fully exposed to air, the device (1) may include a temporary seal (400) for said sensors (150, 160, 170, 180) that is removable prior to placement and use of said sensors (150, 160, 170, 180).

IPC Classes  ?

• A61B 5/05 - Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves

Abstract

Described herein is a method, system and computer program for analyzing a colorimetric assay that includes obtaining an image of the assay, optionally correcting for ambient lighting conditions in the image, converting the intensity data for at least one of the red channel, the green channel, or the blue channel to a first data point, recalling a predetermined standardized curve, comparing the first data point with the standardized curve, and identifying the value for the assay parameter from the standardized curve.

IPC Classes  ?

• G01N 21/25 - Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands

Abstract

A new class of phototropic liquid crystal mixture comprises a liquid crystal host and one or more photodichroic dyes, wherein exposure of the mixture to an activating light causes a light-induced increase in order parameter of the mixture. In some examples, in the absence of the activating light, the phototropic mixture has a lower order parameter than the liquid crystal host, while in the presence of activating light, the phototropic mixture has a higher order parameter than the liquid crystal host. In some examples, upon exposure to the activating light, the phototropic mixture undergoes a phase transition from a material with a lower order to a material with higher liquid crystalline order. In some examples, activating light causes the mixture to transition from an isotropic phase to a nematic phase, from an isotropic phase to a cholesteric phase or form a nematic phase to a smectic phase.

IPC Classes  ?

• C09K 19/60 - Pleochroic dyes

Abstract

Apparatus and method for analyzing and managing fatigue primarily in aviation occupations. The invention is adaptable to other occupations where assuring crew rest is critical. Air crew specific graphical user interfaces (GUIs) allow for the insertion of sleep (100) into crew work schedules (110). Alternative sleep models (130) are used for different modes of sleep. The invention produces as an output work/sleep schedules (170) with an associated effectiveness determination.

IPC Classes  ?

• A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

Abstract

Methods and immunoassays for diagnosing a bite or sting of a venomous organism in a patient having symptoms consistent with such a bite or sting are provided. A sample of venom is collected from the area of the suspected bite or sting using a swab and then contacted with an antibody that specifically binds to an antigenic site on venom present in the sample. Binding is then detected. The invention is illustrated by examples showing diagnosis of brown recluse spider bite, distinguishing it from other diagnoses with which it is often confused. This extremely sensitive test can detect venom antigens down to about 20 picograms even after the sample has been shipped and stored for periods of up to three weeks during the summer.

IPC Classes  ?

• G01N 33/53 - Immunoassay; Biospecific binding assay; Materials therefor
• G01N 33/566 - Immunoassay; Biospecific binding assay; Materials therefor using specific carrier or receptor proteins as ligand binding reagent

Abstract

The claimed invention provides a fusion polypeptide comprising a fibrous protein domain and a mineralization domain. The fusion is used to form an organic-inorganic composite. These organic-inorganic composites can be constructed from the nano- to the macro-scale depending on the size of the fibrous protein fusion domain used. In one embodiment, the composites can also be loaded with other compounds (e.g., dyes, drugs, enzymes) depending on the goal for the materials, to further enhance function. This can be achieved during assembly of the material or during the mineralization step in materials formation.

IPC Classes  ?

• C07K 14/435 - Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from humans
• C07K 14/51 - Bone morphogenic factor; Osteogenin; Osteogenic factor; Bone-inducing factor
• C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin, cold insoluble globulin (CIG)
• C12N 15/62 - DNA sequences coding for fusion proteins