West Virginia University

Robert P M Craven

James Earl Smith

Franz A Pertl

John Lodewyk Loth

Roy S Nutter

James Vernon Odom

Kenneth E Vance

Robert Bond

Curtis Duhn

Joffre J Rolland, Jr

Larry Hawks

A method of monitoring a subject for medical conditions includes causing light to impinge on at least one eye of the subject, directing reflected light from such light beam to photosensors, converting the received reflected light to corresponding electrical signals which are delivered to a processor. Processing the signals by effecting a comparison between stored information regarding the medical condition and the data provided by the monitoring to determine if an undesired medical condition exists and, if so, communicating such result. The cycle is repeated at predetermined intervals which may be short or prolonged. The stored information may be information relating to the specific subject or general information regarding normal and abnormal conditions of the eye representative of toxicity. The eyes may be monitored sequentially or simultaneously. Related apparatus is provided.

Non-invasive ocular assessment method and associated apparatus

A method and apparatus for verifying the authenticity of a document relative to a previously programmed document are disclosed. The method provides a broadband light source; illuminates a document with the light source; collects reflected light; converts it into a corresponding electrical signal or signals; digitizes the electrical signals; and prepares a spectral signature of the document for further analysis. The spectral signature can also be normalized to account for variations in analyzed documents caused by soiling and fading. The method also provides for comparing a previously programmed and stored spectral signature to the spectral signature of a test document using a matching value to indicate whether the test document is authentic or not. The apparatus provides a device for application of the method for verifying document authenticity.

Method and apparatus for determining document authenticity

An electromagnetic antenna for a non-planar surface includes a flexible printed circuit board having three or four conductive levels. The flexible printed circuit board is adapted to conform to the non-planar surface and includes a plurality of electrical connections between the conductive levels and a plurality of electrical traces on the conductive levels. The electrical connections and the electrical traces form a first helix having a first helical pitch sense from a first node to a second node, and also form a second helix having a second helical pitch sense, which is opposite from the first helical pitch sense, from a third node to a fourth node. The first and second helices are contrawound relative to each other. First and second signal terminals are provided and are electrically connected with at least one of the nodes.

Flexible printed circuit board antenna

An electromagnetic antenna includes a multiply connected surface, such as a toroidal surface; first and second insulated conductors; and first and second signal terminals. The first insulated conductor extends around and over the surface with a first pitch or winding sense from a first node to a second node. The second insulated conductor also extends around and over the surface with a second pitch or winding sense, which is opposite from the first pitch or winding sense, from a third node to a fourth node. The first and second insulated conductors are contrawound relative to each other around and over the surface. In one embodiment of the invention, at least one of the nodes is open. In other embodiments of the invention, the signal terminals are structured for connection to a cooperative antenna structure.

Contrawound antenna

A dynamic fluid control surface, e.g., a rotor blade of a helicopter, having a blowing slot extending the entire length of the leading and trailing edges of the dynamic fluid control surface, an internal chamber containing a pressurized fluid, e.g., air, and one or more piezoelectric actuators positioned along the length of the blowing slots and connected to the internal chamber. The piezoelectric actuators are controlled by a computer system to regulate the flow of fluid released through the blowing slot. There may be one or more blowing slots on either just the trailing edge of a dynamic fluid control surface or on both the leading edge and the trailing edge of the dynamic fluid control surface.

Piezoelectric actuators for circulation controlled rotorcraft

An electromagnetic antenna includes a multiply connected surface, such as a toroidal surface; a first conductive loop proximate to the toroidal surface; a second conductive loop proximate to the toroidal surface; first and second signal carrying terminals electrically or magnetically connected to the first and second conductive loops, respectively; and a plurality of conductive transceiver elements, such as plural pairs of contrawound insulated conductor windings. Each pair of the contrawound insulated conductor windings has a first end, a plurality of turns, and a second end, and extends around and at least partially about the toroidal surface. Each pair of these windings is electrically connected to the first and second conductive loops. The first end of the windings is electrically connected to one of the first and second conductive loops, and the second end of the windings is electrically connected to the other of the first and second conductive loops.

Growing community of inventors

Cookeville, TN, United States of America

Robert P M Craven