Magnetic recording circuitry supplies to the recording head in addition to the signal to be recorded a train of constant amplitude pulses of... Show moreMagnetic recording circuitry supplies to the recording head in addition to the signal to be recorded a train of constant amplitude pulses of extremely short duration and of low duty cycle; for example, pedestal pulses of polarity corresponding to the signal are superimposed on the signal for higher positive and negative signal amplitudes, while alternating polarity pulses are supplied during periods of low signal amplitude, such that the transducer system exhibits a substantially linear transfer function. Sponsorship: IIT Research Institute United States Patent Show less
A method for improving searches in a peer-to-peer (P2P) file sharing system that includes a plurality of server computers. A content file,... Show moreA method for improving searches in a peer-to-peer (P2P) file sharing system that includes a plurality of server computers. A content file, identified by a descriptor including at least one metadata term and a mathematical identifier that uniquely identifies the content file in one of the server computers, is selected for searching. Other server computers are searched to find one or more matching content files; one that has a descriptor with a mathematical identifier matching the mathematical identifier of the first content file. The descriptors of the matching content files are returned to the searching server computer and used to expand the local descriptor. Sponsorship: Illinois Institute of Technology United States Patent Show less
A method for detecting a mass density image of an object. An x-ray beam is transmitted through the object and a transmitted beam is emitted... Show moreA method for detecting a mass density image of an object. An x-ray beam is transmitted through the object and a transmitted beam is emitted from the object. The transmitted beam is directed at an angle of incidence upon a crystal analyzer. A diffracted beam is emitted from the crystal analyzer onto a detector and digitized. A first image of the object is detected from the diffracted beam emitted from the crystal analyzer when positioned at a first angular position. A second image of the object is detected from the diffracted beam emitted from the crystal analyzer when positioned at a second angular position. The first image and the second image are combined mathematically to derive a mass density image of the object. Sponsorship: Illinois Institute of Technology United States Patent Show less
A method and device for monitoring or treating patient glucose levels. The device includes a glucose sensor for measuring a glucose level of a... Show moreA method and device for monitoring or treating patient glucose levels. The device includes a glucose sensor for measuring a glucose level of a patient, a physiological status monitoring system for measuring at least one physical or metabolic variable of the patient, and an automatic controller in communication with the glucose sensor and the physiological status monitoring system. The controller includes a prediction module for automatically predicting a future glucose level using data measured by the glucose sensor and the physiological sensor. Sponsorship: Illinois Institute of Technology United States Patent Show less
To provide a compact ozone generator, films of polymeric material are employed as dielectrics in combination with flat, planar electrodes to... Show moreTo provide a compact ozone generator, films of polymeric material are employed as dielectrics in combination with flat, planar electrodes to produce ozone by silient electrical discharge in an oxygen containing gas stream. The electrodes and dielectrics are cooled by the gas stream which is recycled across the electrodes and dielectrics and through an external heat exchanger. Sponsorship: IIT Research Institute United States Patent Show less
A method in a data processing system and apparatus for organizing files, data items, web site members, or web pages, structured or... Show moreA method in a data processing system and apparatus for organizing files, data items, web site members, or web pages, structured or unstructured, of multiple users stored across one or more server computers into hierarchical file structures on a recordable medium of a data processing system. A user-defined metalabel is assigned to each of the electronic files, data items, web site members, or web pages. The electronic files, data items, web site members, or web pages are organized as a function of the metalabels into the hierarchical file structures. The method includes automatically forming personalized hierarchies, such as a shadow copy for a second user, from the user-defined metalabels of a first user according to a user profile. The method includes automatically forming keywords of strings of at least two user-defined metalabels or a portion thereof, and automatically forming search structures of the keywords existing simultaneously with the plurality of hierarchical structures. Sponsorship: Illinois Institute of Technology United States Patent Show less
A biosensor comprising a substrate material, at least one antibody covalently immobilized on the substrate material, and a pair of metal... Show moreA biosensor comprising a substrate material, at least one antibody covalently immobilized on the substrate material, and a pair of metal contact electrodes for measuring the impedance of the biosensor. A process for producing a biosensor in accordance with this invention as well as a process for utilizing the biosensor are also disclosed. Sponsorship: Illinois Institute of Technology Sponsorship: United States of America United States Patent Show less
An electrode configuration for use in association with a heat transfer member provided in a thermal energy transfer system. Separate multiple... Show moreAn electrode configuration for use in association with a heat transfer member provided in a thermal energy transfer system. Separate multiple electrical conductors are each received on a respective first surface alteration. Each of the multiple conductors is connected to a different terminal of a multiphase alternating power source so that an electric traveling wave moves in a longitudinal direction of the heat transfer member so as to induce pumping of at least the liquid phase in the longitudinal direction to thereby enhance the thermal energy transfer characteristics of the thermal energy transfer system. In a preferred embodiment, the aforementioned heat transfer members are provided inside of an outer conduit. Sponsorship: Illinois Institute of Technology United States Patent Show less
A video disc record having a spiral video record track which can provide reproduced video signals with a desired frame rate such as thirty... Show moreA video disc record having a spiral video record track which can provide reproduced video signals with a desired frame rate such as thirty frames per second while the disc record is rotated at a very low speed such as two revolutions per minute. A preferred transducer machine uses a pulsed light source to supply successive light images to a video camera readout. Control signals are recorded on helical control tracks so that reproduction thereof facilitates the generation of a desired standard video signal from the video camera. Sponsorship: IIT Research Institute United States Patent Show less
