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232results about How to "Improve comprehensive applicability" patented technology

Infrared eye movement measurement device

Disclosed herein is a device for measuring horizontal and vertical eye movement utilizing infrared technology. The device rests on the user's nose and, in alternate versions, can be secured to the user's head via a head strap or temple arms which will provide greater alignment and applications. It is comprised of a nose bridge piece and mounting means which house the calculation and measurement technology. The nose bridge is similar to that of ordinary eye glasses with the mounting means, or head strap, or temple arms attached thereto. The mounting means consist of a lightweight horizontal component which extends from the nose bridge and underneath the eyes. This component is located below the horizontal center of the eye and rests above the cheek area of the user's face. Illuminators, which are oriented approximately linear to the horizontal axis of the eye on the component, radiate light into the lower portion of the eye. Sensors, which are above and below the illuminators on the component, detect and measure the amount of reflected light. The device is capable of measuring both axes independently and jointly, as well as both eyes independently and jointly. Utilizing a robust algorithm, accurate adjustment and alignment are not required. The device itself does not require adjustment or alignment, only adjustments for the user's facial features are needed. Therefore, this device only obstructs the bottom portion of the user's lower field of view, leaving the forward, side-to-side, and upward fields completely unobstructed, as well as requires only minimal adjustment and alignment. Thus, it has advantages, applications, and usefulness not contemplated by the prior art.
Owner:BERTEC +1

Robust, Efficient, Localization System

Replica correlation processing, and associated representative signal-data reduction and reconstruction techniques, are used to detect signals of interest and obtain robust measures of received-signal parameters, such as time differences of signal arrival and directional angles of arrival, that can be used to estimate the location of a cellularized-communications signal source. The new use in the present invention of signal-correlation processing for locating communications transmitters. This enables accurate and efficient extraction of parameters for a particular signal even in a frequency band that contains multiple received transmissions, such as occurs with code-division-multiple-access (CDMA) communications. Correlation processing as disclosed herein further enables extended processing integration times to facilitate the effective detection of desired communications-signal effects and replication measurement of their location-related parameters, even for the communications signals modulated to convey voice conversations or those weakened through propagation effects. Using prior, constructed, signal replicas in the correlation processing enables elimination of the inter-site communications of the signal representations that support the correlation analyses. Reduced-data representations of the modulated signals for voiced conversation, or for the variable components of data communications, are used to significantly reduce the inter-site communications that support the correlation analyses.
Owner:TRUE POSITION INC

Microrheology methods and systems using low-coherence dynamic light scattering

Methods and systems for using dynamic light scattering, for investigating local rheological responses of complex fluids over a frequency range larger than that provided by standard instrumentation. A low-coherence radiation source is used with fiber optics to allow measurements of small volume spacing of up to approximately 1/10 of a picoliter. The methods and systems are based on dynamic light scattering, for investigating the local rheological response of a complex fluid over a frequency range larger than that provided by standard mechanical instrumentation. The low-coherence radiation used in a fiber optics configuration allows the measurements to be confined to a small volume around a tenth of a picoliter. The ability of the method to accurately measure both loss and storage moduli has been tested using both simple Newtonian liquids and viscoelastic, complex fluids. Monitoring liquid-gel transitions in polymer solutions has also been demonstrated. The unique capability of the technique to localize the measurement volume can be used for three-dimensional mapping of rheological properties in heterogeneous systems. Other embodiments can use open-air setups instead of optical fibers to transmit and receive the low coherence light.
Owner:CENT FLORIDA UNIV OF +2
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