Abstract: A simple permanent-magnet-excited maglev geometry provides levitation forces and is stable against vertical displacements from equilibrium but is unstable against horizontal displacements. An Inductrack system is then used in conjunction with this system to effect stabilization against horizontal displacements and to provide centering forces to overcome centrifugal forces when the vehicle is traversing curved sections of a track or when any other transient horizontal force is present. In some proposed embodiments, the Inductrack track elements are also employed as the stator of a linear induction-motor drive and braking system.

Abstract: A format structure for storing retrievable data on a sequential data storage medium, which includes in an exemplary embodiment a start field for indicating the start of a data file, an index field for storing indexing data respecting the data file, and a data field. Stored encoded data on the storage medium can use the last file written on the storage medium to create indexing data that can be stored alongside the data files as they written so that each sequential data storage medium remains fully indexed.

Abstract: An integrated frequency source with an integrated frequency standard and an integrated frequency synthesizer is disclosed. A voltage-controlled oscillator in the frequency standard is eliminated with a resulting improvement in phase noise. A reference frequency in the frequency standard is provided directly to the frequency synthesizer. The integrated frequency source is put on frequency over temperature by storing reference frequency errors over temperature in a lookup table, measuring the temperature, and calculating in a microprocessor synthesizer control data that offsets the synthesizer to compensate for reference frequency errors.

Abstract: The invention provides isolated nucleic acid and amino acid sequences of KinI-3, antibodies to KinI-3, methods of screening for KinI-3 modulators using biologically active KinI-3, and kits for screening for KinI-3 modulators.

Abstract: A three-dimensional position locating system is disclosed. In one embodiment, the three-dimensional position locating system includes a housing including a substantially planar surface. The housing includes a first antenna element under the substantially planar surface. A stylus including a second antenna element is coupled to the housing. A processor is electrically coupled to the first antenna element and the second antenna element, and a three-dimensional structure overlies the first antenna element. An antenna coupling element is associated with the three-dimensional structure and an output device can be coupled to the processor.

Abstract: A magnet configuration comprising a pair of Halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second component of their fields substantially adds at this first plane. A track of windings is located between the pair of Halbach arrays and a propulsion mechanism is provided for moving the pair of Halbach arrays along the track. When the pair of Halbach arrays move along the track and the track is not located at the first plane, a current is induced in the windings and a restoring force is exerted on the pair of Halbach arrays.

Abstract: A magnet configuration comprising a pair of Halbach arrays magnetically and structurally connected together are positioned with respect to each other so that a first component of their fields substantially cancels at a first plane between them, and a second component of their fields substantially adds at this first plane. A track of windings is located between the pair of Halbach arrays and a propulsion mechanism is provided for moving the pair of Halbach arrays along the track. When the pair of Halbach arrays move along the track and the track is not located at the first plane, a current is induced in the windings and a restoring force is exerted on the pair of Halbach arrays.

Abstract: A simple permanent-magnet-excited maglev geometry provides levitation forces and is stable against vertical displacements from equilibrium but is unstable against horizontal displacements. An Inductrack system is then used in conjunction with this system to effect stabilization against horizontal displacements and to provide centering forces to overcome centrifugal forces when the vehicle is traversing curved sections of a track or when any other transient horizontal force is present In some proposed embodiments, the Inductrack track elements are also employed as the stator of a linear induction-motor drive and braking system.

Abstract: A phase locked filter can utilize a divider to provide a source signal. The phase locked filter utilizes a phase comparator circuit to tune a voltage-tuned band pass filter. The voltage-tuned band pass filter as a phase response, wherein the phase difference between the input and the output of the band pass filter is zero when the source signal is provided at the center frequency. The phase comparator circuit adjusts the center frequency of the band pass filter to phase lock the source signal from the divider. In this way, the divider can be utilized to provide a clean source signal without a large amount of noise. The phase comparator circuit preferably includes a phase detector or a phase comparator and an integrator. The voltage-tuned band pass filter preferably includes a varactor.

Abstract: A format structure for storing retrievable encoded data on a recording medium comprises a start field for indicating the start of a data file, an index field immediately following the start field for storing indexing data respecting the data file, the index field storing a sequence of one or more positions of other start fields leading in one direction from a current position on the medium toward one end of the medium, and a field immediately following the index field for storage data which forms the data file.

Abstract: A format structure for storing retrievably encoded data on a recording medium is disclosed. A start field for indicating the start of a data file is provided. Immediately following the start field there provided an index field for storing indexing data respecting the data file. In the index field a sequence of one or more positions of other start fields leading in one direction from a current position on the medium toward one end of the medium is stored. Immediately following the index field there is a field for storage data, which forms the data file. A method for storing encoded data on a storage medium is also disclosed. The last file stored on the medium is located. The index field of the last stored file is then retrieved. The index field associated therewith is duplicated for later use. The system then moves the storage medium to the end of the last stored file. At the current position of the medium a filemark is inserted.

Abstract: A method and system is provided for calibrating a plurality of electrical circuits used to charge and test a plurality of battery cells. An improved cell rack module includes at least one movable platen having a plurality of pin assemblies removably secured thereto. The movable platen is slidably movable within the cell rack module between an extended position or a retracted position. Extension mechanisms are used to force the movable platen into the extended position during calibration, charging and testing procedures, and retraction mechanisms return the platen to the retracted position when the extension mechanisms are not actuated. When the movable platen is in the extended position, the pin assemblies are maintained in electrical contact with either the battery cells associated with a conventional cell tray or contact plates associated with a calibration tray.

Abstract: A method and apparatus of producing and using composite fibers in a liquid molding process. The composite fibers are formed from a base material and filler particles which are lighter or less expensive than the base material. A preform screen is placed at the bottom of a tank. The tank is filled with liquid, the composite fibers and a mass of reinforcing fibers creating a slurry above the screen. The screen is raised up through the slurry causing the composite fibers and the reinforcing fibers to be deposited on the screen creating a fiber preform. The preform is then removed from the screen and is placed in a mold for use in a liquid molding process.

Abstract: A portable seat carrier is provided, which consists of a seat in which a person may sit upon. A backrest to support a back of the person, is hinged to the seat. A structure extends from the sides of the seat to removably connect to the backrest for supporting the backrest in an upright position. Components are for carrying the seat and the backrest. When the supporting structure is removed from and placed behind the backrest, the backrest can be folded backwards against the seat, to form a briefcase type configuration, allowing the carrying components to transport the briefcase type configuration to another location.

Abstract: An apparatus for protecting an electrical power system supplying electrical power to an electrical load comprises a transformer for sensing an operating condition of the electrical power system and for producing an analog signal representative of the operating condition, and a microcomputer for periodically sampling the analog signal and for converting the analog signal into a series of digital signals. The microcomputer includes circuitry for deriving a digital value representative of a square root of the series of digital signals and circuitry for processing the digital value over time to determine a processed value which is a function of both the sensed operating condition and time. A circuit breaker is responsive to the microcomputer for disconnecting the power system from the load in the event that the processed value is not within preset limits.

Abstract: A regulator provides a control signal for controlling a generator which is providing an electrical output. The electrical output includes an output voltage and an output current applied to a load. The regulator comprises a microprocessor, voltage sensing inputs and current sensing inputs which cooperate with the microprocessor to sense a parameter of the electrical output applied to the load and a first memory for storing predetermined parameters. The microprocessor compares the sensed parameter to its corresponding predetermined parameter stored in the first memory and generates an output signal representative of the comparison. The regulator further comprises a second memory for storing instructions for controlling operation of the microprocessor and generates the control signal as a function of the output signal from the microprocessor.

Abstract: An apparatus including a base member fixedly mounted to a wall support surface, including a shaft member extending orthogonally relative to the base member, with a cylindrical magnetic tip mounted thereon. The cylindrical magnetic tip is cooperative with a magnetically attractive cylindrical plate member mounted in an aligned relationship to an associated door aligned with the rod and magnetic tip. Modifications of the invention include a magnetic cylindrical tip including a threaded shank securable to a resilient pad of a door stop projection cooperative with a cylindrical tip. Further, the invention includes a cylindrical sleeve overlying the resilient projection provided with an encased magnetic member therewithin to provide a buffering action and minimize marring of an associated door in use.

Abstract: The size, power, and speed constraints in digital sinusoidal waveform generators using values stored in a read-only-memory are alleviated by storing the required values in two smaller read-only-memory devices containing a primary amplitude value and a secondary amplitude value, and a third read-only-memory containing corrective values, the total number of values in the three read-only-memory devices being reduced over the number in a single read-only-memory. The primary and secondary values are combined in accordance with disclosed trigonometric identities in response to a repetitive binary count, and the corrective values are added as determined by logic circuitry responding to the same binary count.

Abstract: The bandwidth of frequency modulated signals is limited in a digital data transmission system by shaping the square digital waveform to form a trapezoidal shaped waveform having a positively-sloped ramp on the leading edge of the waveform and negatively-sloped ramp on the following edge of the waveform. Provisions are made to selectively determine the slope of the ramps and the amplitude of the waveform so that the system can be used with a wide range of data transmission speeds without resort to bandpass filter or component changes as were required in the prior art. Provision is also made for transmission of analog data in the same system by providing a feedback loop which causes the ramping to follow, and thus approximate, the analog waveform. The shaped data signal is fed to a frequency synthesizer which produces a frequency modulated sine wave whose frequency deviation is related to the magnitude of the digital or analog data signal.

Abstract: Improved action is provided in an air powered game wherein the puck glides on a cushion of air by providing the puck with an annular bumper member of resiliently deformable resin to impact and resiliently rebound from the side boundaries of the playing surface. The puck is comprised of a body member of rigid resin providing an upstanding circular wall and an annular shoulder thereabout. The annular bumper member seats about the circular wall on the annular shoulder and projects outwardly of the periphery of the body member. The game table surface is provided with a pattern of spaced perforations through which air escapes and the puck is dimensioned and configured to provide a recess in its bottom surface which will overlie sufficient of the perforations as to be subjected to air streams effectively overcoming the weight of the puck member and thus providing minimal frictional surface resistance to movement of the puck member.