Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: A system and method is provided which represents hierarchical relationships. These relationships are statically stored in a compact manner that allows for easy determination of relations (such as dominance) between any two entities defined to the hierarchy. This stored information is referred to a dominance key or a DOMKEY. DOMKEYs, rather than storing the actual relationship between entities defined to the hierarchical structure, store a representation of the structure itself. In a preferred embodiment, the present invention is applied to computer security systems such as the RACF system and is embedded in a RACF administrator such as Vanguard Integrity Professionals VRA RACF Administrator.

Abstract: Guide elements along paths and turns of a network emit guide signals for guiding vehicles along the paths and through the turns. Control elements, located at points in the network at which the locomotion of approaching vehicles may need to be controlled, emit control signals, such as "stop" and "start" signals. The signals are preferably various modulated and unmodulated sine waves having frequencies programmable by a system supervisor that sends itineraries to vehicles prescribing their respective travel routes, each itinerary containing at least a set of identifiers uniquely corresponding to the signals emitted along the paths and turns in a travel route. The order of the set indicates the order of paths and turns to be taken while travelling a route. A system interface, hosted by each vehicle, acquires itineraries pertaining to its host vehicle and provides path/turn information to a vehicle driver--a person or an apparatus.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: A method and a system for extending useful life of a basic catalyst are disclosed. The basic catalyst comprises a particulate, porous, siliceous catalyst support and an alkali metal in the +1 oxidation state on the catalyst support surface. The catalyst is suitable for the synthesis of an alpha, beta-ethylenically unsaturated carboxylic acid by condensation of a saturated carboxylic acid with formaldehyde. The method of the present invention contemplates providing a reactor, or a series of reactors, containing the basic catalyst and a confined source of the alkali metal associated with a suitable carrier, upstream of the reactor or reactors. A feed stream to the reactor is passed first through the confined source and thereafter through the reactor while reaction conditions for the condensation reaction are maintained within the reactor. The temperature of the feed stream passing through the confined source can be modulated to control release of the alkali metal from the carrier.

Abstract: A fiber-optic transducer apparatus, and a related method of manufacturing it, for particular use in medical applications such as invasive blood pressure and body temperature measurement. The apparatus includes a catheter comprised of a sheath and an enclosed first set of optical fibers for transmitting a light beam to and from the remote end of the catheter, where a transducer modulates it in accordance with the variable to be measured, e.g., blood pressure. A photosensor located at the near end of the catheter measures the modulated intensity of the returned beam, to produce a corresponding measurement signal. The catheter is further comprised of a second set of optical fibers located within the sheath, for transmitting a reference light beam to and from the remote end of the catheter. A second photosensor measures the intensity of the returned reference light beam, to produce a correction signal indicative of variations in transmittance caused by bending of the catheter.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: A method is provided by which a programmable logic controller checks each statement of an instruction list (IL) program to determine if any such statement or the order of statements violates one of a set of syntax rules which are stored in a memory in the controller. If a rule violation is found, an error indication is generated to signify that the particular IL program under test by the controller can not be accurately converted or translated into a relay ladder diagram. However, if no rule violation is found by the controller, then the controller accepts the IL program.

Abstract: A method and apparatus for measuring the oxygen saturation level and hematocrit of human blood in real time. A catheter having a notch in its tip is inserted into a blood vessel and guided to a desired location in the body of a patient. Bursts of light at each of three wavelengths are transmitted through the blood in the notch. The intensities of the bursts of light after transmission are utilized along with a set of molecular exinction coefficients and optical scattering coefficients to calculate the oxygen level and hermatocrit. The light is provided by a set of LEDs in a housing connected to the catheter and the intensity of the transmitted light is measured by a photocell in the same housing. Optical fibers transmit the light through the catheter between the housing and the notch. Characterization resistors in the housing are encoded with characteristics such as the wavelengths of the LEDs and the width of the notch.

Abstract: A self-adjusting slide assembly is provided for mounting a weight on gear switch to an aircraft. The slide assembly is particularly adapted for mounting on a skid equipped helicopter for responding to vertical oscillatory deflection of a cross tube of the skid landing gear. A mounting bracket is attached to the underside of the helicopter for supporting a back plate and a pair of clamp plates. A C-shaped slide member has a flange mounted between the back plate and clamp plates so as to slide vertically. Take-off and landing stresses cause the cross tube to exhibit vertical oscillatory deflection between an upper arm and a lower arm of the slide member. A microswitch mounted on the lower arm is actuated when the cross tube contacts a bottom bumper on the lower arm while the helicopter is fully on skid gear.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: An improved system for recording and playing back digital information in a special pulse-length modulation format on a disc-shaped record. The digital information is stored in a succession of alternating marks and spaces, both having lengths that are discretely variable in accordance with a succession of multi-bit binary code blocks.

Abstract: A redundant power supply system wherein the standby power supplies are maintained in a powered up state at all times by feeding back a difference signal which is indicative of the voltage difference between the output of the power supply and a further difference voltage. The further difference voltage is indicative of the voltage drop across a diode located between the output from the power supply and the load of the entire power supply system.

Abstract: Three separate embodiments of file drawer fillers are provided in the invention. One filler is partially self-adjusting and two fillers are completely self-adjusting in length to accommodate variations in the number of documents in a file or desk drawer. A first embodiment is a substantially rectangular panel strip transversely fan-folded to form several connecting smaller panels of equal size. The folds are aligned horizontally with the two end panels positioned vertically to support filed materials in a vertical position. A second embodiment is provided in an elongated enclosed bellows endwardly connected to vertical end panels. The end panels form the document support surface. The bellows portion of the device is affixed with an air valve which allows the release or intake of air to adjust supporting length of the bellows. A third embodiment entails a horizontal compression spring endwardly attached to two vertical end panels with the end panels providing document support surfaces.

Abstract: An output circuit for a digital physiological measuring instrument. The output circuit provides means for a digital signal indicative of a physiological parameter to operate on an excitation signal from a monitor to provide a response signal for driving the monitor to generate a visual display of that parameter. The excitation signal is scaled in a digital-to-analog converter, corrected for a zero offset of the digital signal, and then applied to the monitor. A dummy excitation signal is provided to enable the output circuit to drive a readout device having an analog input but not providing an excitation signal.

Abstract: An externally applied liquid linament massage composition consisting essentially of a ternary solution of an aliphatic alcohol having up to six carbon atoms, turpentine, camphor, and the soluble materials at room temperature from fresh fig leaves of Ficus Carica.

Abstract: A gage block case includes a plurality of gage blocks mounted within the case, each gage block having opposed gage surfaces with a nominal dimension therebetween and a known deviation from the nominal dimension. Sensors associated with each gage block sense the removal of each gage block from the case. A signal generator provides a distinct signal corresponding to which gage block is removed from the case. A memory stores the known deviation of each gage block within the case. A control unit responsive to the signal generator addresses and retrieves from the memory the known deviation for each gage block which is removed from the case, combines the known deviation with the deviations of previously removed gage blocks and outputs the total deviation to a display device. In a second embodiment, the control unit selects and indicates which gage blocks are to be removed from the case to form a specified stack height input to the control unit.

Abstract: A gage block set includes a plurality of gage blocks mounted within a case, each gage block having opposed gage surfaces with a nominal dimension therebetween and a known deviation from the nominal dimension. Sensors associated with each gage block sense the removal of each gage block from the case. A signal generator provides a distinct signal corresponding to which gage block is removed from the case. A memory stores the known deviation of each gage block within the case. A control unit responsive to the signal generator addresses and retrieves from the memory the known deviation for each gage block which is removed from the case, combines the known deviation with the deviations of previously removed gage blocks and outputs the total deviation to a display device.