Abstract: A method for correlating behavior between two elements of a system to determine the presence of mutual interaction between the elements, the method including measuring the behavior of two elements of a system over time with respect to mutual interaction, thereby producing two behavior functions, expressing a plurality of constraints on a theoretical distance c between the behavior functions, and determining that the elements are behaving as mutually interacting elements where there exists an actual distance c satisfies the constraints.

Abstract: A vehicle, including a vehicle frame, a duct carried by the vehicle frame with the longitudinal axis of the duct perpendicular to the longitudinal axis of the vehicle frame, a propeller rotatably mounted within the duct about the longitudinal axis of the duct to force an ambient fluid therethrough from its inlet at the upper end of the duct through its exit at the lower end of the duct, and thereby to produce an upward lift force applied to the vehicle, and a plurality of parallel, spaced vanes pivotally mounted to and across the inlet end of the duct about pivotal axes perpendicular to the longitudinal axis of the duct and substantially parallel to the longitudinal axis of the vehicle frame, the vanes being selectively pivotal about their axes to produce a desired horizontal force component to the lift force applied to the vehicle.

Abstract: A differential-pressure flow sensor for airflow measurement in the presence of water condensation, for use with mechanical ventilators. The pressure-sensing ports at either end of the interfering body are displaced from the inner surface of the surrounding tubing, so as to prevent obstruction of the pressure-sensing ports by free flowing condensed water. The leading edge of the interfering body is angulated so as to deflect airflow towards the pressure-sensing port on the trailing edge of the interfering body, thereby flushing water droplets away from the port. The sides of the interfering body are sloped so as to generate turbulent boundary layer airflow at areas distant from the pressure-sensing ports, thereby encouraging water condensation away from the ports.

Abstract: A system and methodology for tracking objects including affixing at least one imagable identifier onto each of a multiplicity of objects to be tracked, imaging at least a portion of at least one of the multiplicity of objects at a known location to provide an at least partial image of the at least one of the multiplicity of objects, containing the at least one imagable identifier and employing the at least partial image of the object containing the at least one imagable identifier to provide an output indication of the location of the at least one of the multiplicity of objects.

Abstract: A communication system includes a plurality of subscribers having a telephone set and different types of home modems coupled using twisted pairs to a local server that includes a plurality of downstream repeaters, a central office coupled to a local server using twisted pair subscriber lines. The central office includes a telephone switch that provides telephone service to the subscribers and a concentrator that connects a plurality of upstream repeaters with a number of office modems that provide data service to the subscriber. A communication system uses CAP or DMT line signals with time division. The line signal transmits with different time framing. Every subscriber line can work in one of three operation modes Asymmetrical mode, Half-Asymmetrical mode, and Symmetrical mode.

Abstract: A multimodality imaging system including a plurality of imaging systems, and at least one rail upon which at least one of the imaging systems is slidingly mounted.

Abstract: A method and apparatus for registering unanswered telephone calls is provided. The method includes directing the unanswered call to an external server, recording details of the calling telephone, including the telephone number of the calling telephone (caller ID), the time and the date of the call, and notifying the called telephone of the details of the unanswered telephone call.

Abstract: A decision operation tree (“DO Tree”) according to the present invention is a logical tree representation of decision making rules and actions instituted according to those rules. In preferred embodiments of the invention, one or more DO Trees are tailored to serve a user's rating and billing system needs. According to the present invention, Do Trees are comprised of a plurality of nodes and branches, which branches connect the nodes together in a descending relationship. Any node may have defined for it one or more actions (whose implementation can be prioritized or ordered) which are triggered whenever the node is reached. Those nodes having branches stemming (“descending”) from them have two parameters, a Decision Attribute and a Branching Type, which defines the node's relationship with its descending branches. Upon occurrence of the predefined event, the method includes proceeds from node to node, and optionally performs one or more actions in each node.

Abstract: A printed circuit board antenna is a diversity polarization antenna for connecting with a printed circuit board. The antenna includes a fixed height connector, a horizontally polarized antenna, and a vertically polarized antenna. The phase center of the vertically polarized antenna coincides with the phase center of the horizontally polarized antenna.

Abstract: A method and device for measurement of a level of at least one blood constituent. The device includes a light source and a light detector proximate the surface of an organ. The device also includes a pair of adjustable gain amplifiers and a processor/controller connected within a processing unit. The processing unit operates to separate an AC signal component from a DC signal component. The light source includes at least one light emitting unit. Preferably, the light source alternatingly emits light at two different wavelength ranges and normalizes the AC and DC output signals corresponding with the intensity of the light reflected from the organ and calculates a ratio of the normalized signals for each wavelength range. The device may determine the level of the blood constituent and may also use this level for monitoring and/or to activate an alarm when the level falls outside a predetermined range.

Abstract: A method and apparatus for achieving ultrasonic coronary thrombolysis. After intravenous injection of a thrombus-specific ultrasound contrast agent, an array of ultrasonic transducers arranged in a pad placed on the patient's chest transmits ultrasound signals into the patient, from a virtual source. Reflected signals are then analyzed to determine the ratio of the second (or hall) harmonic to first harmonic components in the signals. A high ratio indicates the presence of a thrombus in the field of interrogation Time-of-flight data for each of the receivers is used to calculate a spatial location of the thrombus, and a phased array ultrasonic transmission is then focused on the thrombus, so as to achieve sonoparation.

Abstract: A method for identifying a longest common substring for a string T and a string R, including selecting a registration symbol that appears in both strings R and T, constructing a first relative distance vector R′ from the appearance of the registration symbol in the string R, constructing a second relative distance vector T′ from the appearance of the registration symbol in the string T, deriving a substring pair RCS and TCS in the strings R and T respectively for each common substring pair RCS and TCS in the vectors R′ and T′ respectively, and identifying the longest matching of the RCS and TCS substring pairs as the longest common substring for the string T and the string R.