Abstract: A nonlinear transmission-line waveform generator for generating a comb of frequencies and relatively short duration pulses, for example, in the range of picoseconds and tens of picoseconds, that are adapted to being utilized with ultra wideband radios in order to improve the bandwidth of such radios by an order of magnitude, for example, up to tens and even hundreds of GHz. In particular, the nonlinear transmission line waveform generator in accordance with the present invention consists of a microstrip or coplanar waveguide line. In accordance with an important aspect of the invention, the &Dgr;C/&Dgr;V characteristic of the nonlinear transmission line is matched to the frequency and amplitude of the input sinusoid. By matching the &Dgr;C/&Dgr;V characteristics of the nonlinear transmission line to the input sinusoid, the output of the nonlinear transmission line produces a comb of frequencies that are multiples of the input sinusoid frequency, making it suitable as a harmonic generator.

Abstract: In at least two separated devices, a data transmission or a power transmission is performed through the electromagnetic coupling of coils which are arranged in mutually facing positions in the respective devices. In order to reduce the effect of a displacement between two coils even if the two coils are displaced from each other, the inner diameter of a coil 110 on the side of a station, as a primary coil, for performing the data transmission or the power transmission, is set to be larger than the inner diameter of a coil 210 on a watch side, as a secondary coil, by at least 1 mm.

Abstract: A method and apparatus provides a technique for measuring characteristics of a harmonic pollution source connected to an alternating current power distribution system. The apparatus has a harmonic current meter and a harmonic voltage meter. Also, the apparatus has a harmonic perturbation device which can produce changes in the harmonic energy present in the power distribution system. The perturbation device can be a harmonic shunt or a harmonic frequency generator. In operation, harmonic voltage and current measurements are made at the connection point between the harmonic pollution source and the rest of the power distribution system. One set of voltage and current measurements is made with the harmonic perturbation device connected and one set of measurements is made with the harmonic perturbation device disconnected. The measurements are performed at the frequencies of interest.

Abstract: A pulse signal generator comprises a magnetic element capable of causing a large Barkhausen jump, a detector provided in relation to the magnetic element, a magnetic field source provided in the vicinity of the magnetic element to produce a biasing magnetic field which causes a predetermined magnetization of the magnetic element, and a magnetic circuit forming member provided in the vicinity of the magnetic element to produce a main magnetic field which cause a large Barkhausen jump in the magnetic element such that movement of the object to be detected changes the main magnetic field of the magnetic circuit forming member thereby causing a large Barkhausen jump to provide a pulse signal.

Abstract: A starter protector for preventing excessive generation of heat by a starter and for preventing reactivation of the starter while the engine is running, etc., comprises an auxiliary switch for opening and closing a starter main switch, a mounting bracket having a main body portion extending circumferentially around the outer circumferential surface of a housing of the auxiliary switch and secured thereto and a pair of leg portions extending substantially parallel to each other from the main body portion before turning outwards, and a protector circuit disposed in the space formed by the leg portions for opening the auxiliary switch under predetermined conditions. The protector circuit may comprise a case which is guided and positioned by the leg portions of the mounting bracket and the case may comprise a flange capable of being secured to the starter together with the leg portions of the mounting bracket.

Abstract: An improved remote vehicle starting apparatus with timer which allows for the remote starting of a motor vehicle to allow for the preheating or pre-cooking of the passenger compartment of said motor vehicle under extreme temperature conditions is disclosed. The apparatus consists of a transmitting unit, located with the driver, and a receiver unit that is located in the driver's vehicle. The transmitting unit allows the user to set predetermined times at which to start the vehicle, before work for example, and includes an LCD display that indicates both the time of day and the time(s) at which the vehicle will be started. The transmitter also includes a manual switch, by which the user may start the vehicle, regardless of the time settings. The receiver installs in the vehicle and is wired into the vehicle ignition circuitry, allowing the engine to be started by key in a conventional manner, or by the remote transmitter.

Abstract: To prevent a theft of a car with a forged key, the start of an engine is permitted irrespective of the result of judgement of start judging means for a predetermined time after a key switch is turned on and the engine is stopped after the passage of the predetermined time and when the start judging means judges that the start of the engine should be inhibited.

Abstract: In a system of wire-bus linked control devices with a reduced bias current requirement, all of the control devices are permanently connected to two bus bars for operational power supply, and the bus bars in turn are connected permanently with the supply poles of an operating current source. One of the control devices is equipped with a standby operating function with prompting readiness, and is continuously active in prompting readiness. Apart from its communications connection with the bus the latter control device has at least one separate signal input through which it can be prompted as well as a control output which, when the normal operating state of this control device is reached (from prompting readiness), can deliver a connect signal. Each of the other control devices has internal control means for controlling its power supply from the two bus bars and a connect control input to which a control signal for activating the internal means can be supplied.

Abstract: A vehicular use power feed apparatus comprising a battery and a plurality of power distribution units connected in a loop via power feed lines. Each power distribution unit has a current monitoring circuit, a current amount determination circuit, and a current direction determination circuit, detects the direction of current and magnitude of current flowing through the power feed line, and thereby detects an occurrence of a short-circuit. A control unit exchanges information regarding occurrence of short-circuits with adjoining power distribution units via a multiplex signal transmission unit so as to pinpoint the trouble point. The control unit operates the relay switch circuits on the two sides to break the connection so as to isolate the trouble point in cooperation with the control unit of the adjoining power distribution unit. The other relay switch circuit is operated to establish a connection so as to establish a new power feed line.

Abstract: For manufacturing a pulse generator wherein a voltage pulse dependent on the change in magnetic field can be achieved by sudden magnetic reversal (Barkhausen skip) given an applied magnetic field, an iron alloy is employed for one of the materials of the composite member, the additional alloy constituents of this iron alloy being selected such that a structural conversion with volume change respectively occurs at different temperatures. For producing the stressed condition, a thermal treatment is then implemented, which includes heating above the upper transition temperature and a cooling below the lower transition temperature. As a result, substantially greater stresses between the materials of the composite member arise, causing a pulse behavior significantly improved in comparison to known pulse generators of the type capable of recognizing constant or alternating magnetic fields.

Abstract: A vehicle antitheft system includes a MOSFET with associated power and logic circuitry embodied by a chip that can be housed within a starter solenoid housing for preventing control current from activating the solenoid unless an authorized enable signal is received. The enable signal can be transmitted by a hand-held rf transmitter. The chip can also undertake additional functions. In alternate embodiments, the MOSFET can be disposed in a housing separate from the solenoid and mounted near the solenoid, and the MOSFET can be controlled by an rf-generated enable signal or by an impulse-generated enable signal. In the latter case, the MOSFET is activated to close the solenoid control current circuit path only when a single impulse signal, e.g., from a door latch lock, is activated. If two impulse signals are received, one from, e.g., the door latch lock and another from, e.g.

Abstract: A system of inflatable air cells is constructed and installed in a seat at locations that are strategic to the comfort of the user. The air cells are connected to a pump through a manifold which sequentially connects each cell independently to the pump. The manifold controls the flow of fluid in the air cell distribution system by means of a system of valves and senses the pressure in each cell by means of a transducer. A microcomputer is programmed with data representing a desired comfort level for each of the air cells. By sequentially activating individual manifold valves, a pressure signal from the transducer can be generated for each cell. The pressure signals are received by the microcomputer and are correlated with the predetermined comfort data to generate a control signal which activates the pump. In this manner each of the cells can be individually inflated or deflated to the desired pressure level.

Abstract: A remotely controlled electrical accessory system for starting an engine of a vehicle and actuating a garage door opener attached to a garage door. The system includes a first transmitter for producing an engine ignition signal and a second transmitter for producing a garage door opener actuation signal. A receiver starts the engine of the vehicle and energizes the second transmitter to produce the garage door opener actuation signal in response to the engine ignition signal. In a preferred embodiment, the system includes a proximity sensor attached to the vehicle for producing a gating signal in response to a closed garage door. Preferably, the receiver starts the engine of the vehicle in response to the engine ignition signal and energizes the second transmitter to produce the garage door opener actuation signal in response to the engine ignition signal and the gating signal.

Abstract: An apparatus and method for recharging a string of avalanche transistors within a pulse generator is disclosed. A plurality of amplification stages are connected in series. Each stage includes an avalanche transistor and a capacitor. A trigger signal, causes the apparatus to generate a very high voltage pulse of a very brief duration which discharges the capacitors. Charge resistors inject current into the string of avalanche transistors at various points, recharging the capacitors. The method of the present invention includes the steps of supplying current to charge resistors from a power supply; using the charge resistors to charge capacitors connected to a set of serially connected avalanche transistors; triggering the avalanche transistors; generating a high-voltage pulse from the charge stored in the capacitors; and recharging the capacitors through the charge resistors.

Abstract: A topology for combining an array of low voltage, low current components to form a high voltage, high current pulse modulator. Each module of the MIA is composed of an inductive adder cell and a plurality of energy storage capacitors, a plurality of solid-state switches, and ancillary components to form a high current but a low voltage modulator. By using a large number of energy-storage/switch combinations in parallel, a highly redundant (reliable) module is formed. High voltage is obtained by inductively adding the voltage of a plurality of modules. Each module drives a single turn primary of a transformer (inductive adder cell). Each transformer has a single turn secondary. The single turn secondary of each transformer is connected in series. The advantage to this transformer topology (as opposed to a multi-turn secondary) is greatly reduced secondary capacitance which allows the transformer to operate at much higher bandwidth than otherwise possible.

Abstract: A key body (14) is inserted into a recess (16) to be held on a card key support (12). When a spare key (10) is used, the key body (14) is removed from the recess (16) and inserted into the recess (26). Accordingly, a lock insertion portion (14B) protrudes from the card key support (12) for manipulation of the key. A transmitter element (18) is mounted to the card key support (12) near a base portion (14A) of the key body (14) which is mounted to the recess (26) so that an ID signal is transmitted from the transmitter element (18) in the direction of the key cylinder in the same manner as in an original key. An operating condition of an engine is thereby maintained.

Abstract: The present invention provides an attachment for use with a power machine. An attachment control device includes an ignition switch and a stop switch and allows a user to operate the attachment from outside the operator compartment of the power machine, when the power machine is started from the attachment control device.

Abstract: The present invention is a method and apparatus of providing EMI filtering through the implementation of a voltage sense circuit that is used in conjunction with a power correction circuit in an electromagnetic (EMI) filter system. The apparatus comprises a filter that receives an alternating current signal, where the filter has an input terminal and an output terminal. The apparatus also comprises a power correction circuit having a voltage reference input terminal and an output terminal. A voltage sense circuit having an input terminal is coupled to the input terminal of the filter. The voltage sense circuit has an output terminal that is coupled to the voltage input terminal.

Abstract: A control system for a remote vehicle starter which allows a remote vehicle starter to be activated at a preset time for a specific number of days after setting. According to the control operation, a setting sequence is detected. When the setting sequence is detected, a timer is started, which may be for example slightly less than twenty-four hours. Then, a vehicle is automatically when the timer expires. Such a control operation in the present invention allows a vehicle to be started automatically at the same time after an initial setting for a specific number of days.

Abstract: An energy-efficient energizer for an electric fence for controlling livestock or the like, includes an output voltage sensor. By switching to extra storage capacitance and/or altering the charge voltage the energizer varies the duration of the output pulse and perhaps also the pulse voltage according to the sensed output, thus maintaining an effective livestock barrier and consuming high power only when required. Output pulses are about 8 kV (no load) down to 4 kV (wide range of loads). The control algorithm determines the capacitor charging time and initiates a charge sooner if a higher power pulse is to be delivered, so maintaining a constant pulse rate. The energizer includes a 12V DC power option and has a circuit for synthesizing a substantially unipolar pulse having low harmonic content.

Abstract: An ignition output stage is described, in particular for an internal combustion engine, in which the output stage is constructed as a two- or three-stage Darlington and provided either with an internal single-stage or an external multiple- stage clamping via a Zener diode for protection from surges, while a short-circuit transistor is provided for protection from parasitic currents at the control terminal of the Darlington in parallel to the base-emitter junction of the ignition Darlington.

Abstract: A system and method for controlling refuelling of a motor vehicle having an internal-combustion engine and having a control unit for a central locking system and several locking/unlocking devices (VEEs) for doors and covers which are controlled by the control unit. The locking and unlocking device of the filler inlet compartment cover can be switched by the control unit independently of the other locking and unlocking devices. When the filler neck cap and/or the filler inlet compartment cover is open, the internal-combustion engine cannot be started. When the internal-combustion engine is running, the filler inlet compartment cover cannot be unlocked.

Abstract: For several years, there has been interest in obtaining fast-rising, high-voltage pulses to drive particle-beam diodes and antennas in mobile situations. The Magnetic Voltage-Pulser (MVP) is a new device to satisfy this interest. The regime of operation of the basic unit comprises--output voltage=0.2 to 1.0 MV, pulse duration=1 microsec, and load impedance=1 to 10 ohms. For higher voltage and higher impedance needs, a plurality of pulsers can be used in a series-parallel arrangement. Typical dimensions for the basic pulser are: length=20 cm, and diameter=15 cm. The weight of the system will vary with the details of the technical approach selected for each application. Also, the basic arrangement can be used for single-shot or repetitive operation by selecting options in the technical details. The repetition rate can exceed 10 kHz. Typical applications include high-power microwave and other electronic warfare devices.

Abstract: A self-propelled vehicle alternator used both as a generator and as an electric motor for starting the engine of the vehicle. A coil-carrying rotor and a multiphase stator connected to a bridge of diodes and switches for rectifying and controlling the phases cooperate for selective operation as a generator or starting motor. A control unit for the switches recognizes a code signal transmitted by a code transmitter and controls the phases of the stator to cause the alternator to operate as an electric motor and start the engine only if it receives a code signal from the transmitter authorizing starting.

Abstract: An arrangement for voltage supply with an electrical machine that can be operated as a generator or as a starter is proposed, which is operated by the engine in the generator mode and which brings the engine to the requisite minimum rpm in the starting mode. The electrical machine is connected via a changer to a voltage converter that is connected to the battery of the on-board electrical system. In the starting mode, the voltage converter is bypassed by a switch element, so that the starter is supplied directly from the battery. In the generator mode, the switch element is opened, so that the generator can be operated with elevated voltage compared to the on-board electrical system voltage, and this elevated voltage is converted to the on-board electrical system voltage in the voltage converter.

Abstract: The invention relates to a device which aims to improve safety and reliability in a remote engine starting and stopping device for construction machines. A starting signal for starting an engine is transmitted to a construction machine from a transmission which is separate from the construction machine. The starting signal is received by a receiver on the construction machine. When the starting signal is received by the receiver, an engine starting device is driven for starting of an engine on condition that an operating lever for a working machine being on a neutral position is detected by a neutral position detection. As a result, a danger of the working machine coming into motion in an unmanned state is avoided for improvement of safety. Further, if the engine having worked is detected by a working condition detection after an engine starting device is driven by the engine start, the engine is made to work until a predetermined period of time elapses after a point of time when the detection is effected.

Abstract: A powerline communication system comprises a master and slave configuration in which the master provides both operating power and control commands to the slave over a single pair of wires. The slave, in turn, is able to communicate its status to the master with a return communications channel on the same pair of wires. Each sender impresses its signals on the power lines with an isolation transformer coupled to the gate of a power MOSFET transistor that shunts the power lines. Each receiver samples the signals from the sender with an isolation transformer that has its primary winding placed in series with the power lines. The master initiates a synchronizing pulse and places data in various timeslots. The slave follows with an initiating sync pulse followed by data in a group of timeslots. Edge-detection, rather than level-detection is used at the receivers for added immunity to supply and load changes. A double-pulse sync is used for special time slot reporting.

Abstract: A lock actuator assembly for a steering lock and ignition assembly has a two position knob for operating an ignition switch of a vehicle and for operating a steering lock mechanism of the vehicle. The knob is retained within a housing by a latch device until authorization by an authorization system is provided to the latch device. When authorization is received, the latch device releases the knob from the housing so that the steering lock mechanism can unlock the steering shaft and the ignition switch can be operated to start the vehicle.

Abstract: A method and apparatus for transmitting energy pulses in a conductive fence system which includes two or more conductive lines (1-4), one or more pulse generators (A-D) capable of transmitting energy pulses along each conductive line, and junction points (5-8) where the conductive lines are in contact or close physical proximity to each other. Operation of the energy pulse generators (A-D) are coordinated to ensure that the effective pulses in the vicinity of a junction point (5-8) are within a predetermined pulse rate and magnitude range.

Abstract: An improved pulse generator for RF pulse generation in tuned loads, employing full cycle generators formed by pairs of parallely connected half-cycle SCR-triggered capacitor-charging and discharging generators each having its own separate d.c. power supply, and wherein reverse capacitor voltages are clamped by diode connecting the capacitor of each half-cycle generator to the power supply of the other half-cycle generator.

Abstract: A circuit arrangement for starting an internal combustion engine by means of a sliding-gear starter (10) is proposed, by means of which the starting process is interrupted after a predetermined first time period in case of a meshing blockage and is repeated at the end of a further predetermined time period. The circuit arrangement is provided with a voltage detector for detecting a meshing blockage (blind switching of the starter), which senses the voltage drop at the storage battery (15) caused by the activation current of the starter motor when meshing. In the case of a missing voltage drop, the starter (10) is switched off via a switching element (20) of the start repeat device (18), and after a further time period of a timer circuit of the start repeat device (18) it is switched on again (FIG. 1).

Abstract: An arrangement for detecting the ignition of a high-pressure gas discharge lamp, in particular for use with a motor vehicle headlamp, comprising a circuit for supplying the high-pressure gas discharge lamp with burning energy, a control circuit and an ignition circuit. The ignition circuit is provided with an auxiliary voltage for the ignition. The control circuit is configured such that it detects the ignition of the high-pressure gas discharge lamp immediately via the behavior or the status of the auxiliary voltage (U.sub.H). The control circuit can be provided with a microcontroller (20). The auxiliary voltage supplied during the ignition is connected to the microcontroller in such a way that the microcontroller detects the ignition without delay. For this, the auxiliary voltage is supplied via a voltage divider (22, 23, 24) with logic potential to the external interrupt input (21) of the microcontroller.

Abstract: A vehicle security system attached to a power source for controlling a vehicle ignition. The vehicle security system includes first and second normally closed switches connected in series along a first power line between the power supply and a distributor of the vehicle. The first switch is positioned within a cabin of the vehicle and the second switch is positioned with a trunk of the vehicle. A third normally open switch is connected along a second power line between the power supply and a trunk lock of the vehicle and positioned within the trunk of the vehicle. The first and second switches are operable between a first closed position connecting the power source to the distributor allowing the vehicle to be started and a second open position disconnecting the power source from the distributor and preventing the vehicle from starting.

Abstract: A technique for optimizing the impedance match between a plurality of pulse generators and a high-Q tuned load by equally advancing and retarding the phase of equal groups of pulse generator modules with respect to the load voltage. The sum output current is in phase with the coupling network voltage and produces alternating pulse generator sinewave outputs of successive plus and minus equal phase shifts with respect to the load voltage.

Abstract: A pulse output circuit which has an output stage connected to a capacitive load capable of improving a through-rate of an input pulse signal with reduced power consumption is provided.

Abstract: A low level current travels from a source through the high voltage cable from the remote end to the local end of the cable in a pulse power circuit. The current is detected, and a signal is generated by a bias sensing circuit. If the low level current is not positively detected, no pulse is allowed to occur, preventing accidental damage and high voltage hazard. In some embodiments, the current is coupled to ground at the local end through an isolation inductor, commonly a secondary winding of a high voltage pulse transformer. The low level current then passes through a shunt resistor from ground to an input terminal of the source, thus completing the circuit and generating a voltage between the source input terminal and ground that confirms continuity of the circuit through the high voltage cable.

Abstract: An apparatus supplies an ohmic, inductive or capacitive load with needle pulse trains in which each individual pulse has a duration of less than 1 millisecond. Due to pulse amplitudes which are by far higher in relation to the nominal voltage of the load, considerable increases in efficiency can be achieved, however, without damaging the load or impairing its useful life. The needle pulses are of constant amplitude and the same polarity. The ratio between pulse voltage and nominal voltage is always higher than 1.7.

Abstract: An ignition switch system is provided for use with an engine of a vehicle. The ignition switch system includes a power source such as a battery, and an ignition switch connected to the power source. The ignition switch includes an off position and a combined run and start position. A controller is electrically connected to the ignition switch. A relay mechanism is electrically connected to the controller. A starter mechanism is electrically connected to the relay mechanism and is drivingly engageable with the engine of the vehicle. The ignition switch connects the power source to the controller when the ignition switch is in the combined run and start position. The controller, upon connection with the power source, determines if the engine is running. If the engine is not running, the controller activates the relay mechanism which engages the starter mechanism to the power source.

Abstract: Eight storage battery cells 11.sub.1 to 11.sub.8 making up a storage battery cell group 2 can be connected selectively to a voltage-correcting storage battery 12 through nine cell change-over switches 13.sub.1 to 13.sub.9, four polarity-inverting switches 14.sub.1 to 14.sub.4 and a current-limiting resistor 15. When the voltages of two or more of the storage battery cells 11.sub.1 to 11.sub.8 are different, the voltages of each of the storage battery cells 11.sub.1 to 11.sub.8 can be equalized by then transferring the charge from a storage battery cell high in voltage to the voltage-correcting storage battery 12 and by transferring the charge of that voltage-correcting storage battery 12 to a storage battery cell low in voltage. As a result, the voltage difference due to the performance variations among the individual storage battery cells 11.sub.1 to 11.sub.8 can be obviated thereby to increase the working voltage range of the storage battery cell group 2 as a whole.

Abstract: An ignition circuit output stage which is driven by one or several microprocessors. Up to now different modes of operation each required their own different ignition circuit output stage. The ignition circuit output stage according to the invention is programmable - that is, using one and the same output stage, different modes of operation can be selected such as, for example, the unregulated or output stage mode as well as the regulated and limited output current mode. The circuit essentially consists of a down converter which, when activated, will regulate and limit the discharge current. The down converter can be activated and deactivated by means of an appropriate signal. When the down converter is in its deactivated state, an unregulated discharge takes place; this is the output stage mode.

Abstract: A device for supplying voltage in a motor vehicle is described in which there is at least one generator that can furnish an generator-speed-dependent output voltage without voltage regulation. The at least one generator is preferably a three-phase alternator with a plurality of stator windings whose electrical connections are switchable at predetermined generator speeds by a control unit to provide the generator-speed dependent output voltage. In a following power control unit, this generator speed-dependent voltage is rectified by means of at least one controlled rectifier bridge and via assigned voltage converters is converted into a plurality of directly voltages of different magnitude. These direct voltages are supplied to the individual on-board electrical system components via electronic vehicle body power control system units.

Abstract: A motor vehicle starter is controlled by a control device which cuts off the starter by measuring the power supply voltage of the starter and interrupting the power supply when that voltage reaches a threshold value. The threshold value is a function of the value of the power supply voltage measured at the inception of the starting operation.

Abstract: A control circuit comprises a plurality of amplifier and filter stages for detecting ignition noise present on the battery line of a vehicle. It applies the filtered and amplified ignition noise signal to a hysteresis latch circuit for providing a control output signal for a solid-state switch coupled between the vehicle battery conductor and a load. Such a circuit provides accurate detection of only ignition noise to provide operating power from a battery line to a circuit to be powered thereby and is immune from extraneous noise frequencies and voltage levels.

Abstract: A portable transponder, such as key, first sends invalid data to a lock, whereupon a challenge signal with a memory address is transmitted back to the transponder. A code word stored in memory at the memory address in the transponder is read out and transmitted to the lock. There, the code word is compared with a desired code word. If they correspond, an immobilizer is released. Next, the address and/or code word is recalculated in the lock and adjusted in the transponder for the next release cycle. An alternating code is thus created.

Abstract: A flash charging circuit has first and second transistors (TR1, TR2) which are connected to opposite terminals of a primary coil of a transformer, a battery is connected to a center tap provided in a middle portion of the primary coil, and first and second drive pulse signals (S1, S2) are applied to the first and second transistors to drive them alternately with each other, to induce an alternating secondary current in a secondary coil of the transformer. Each of the first and second drive pulse signals have a shorter pulse duration (Pd) than a pulse separation (Ps). The phases of the first and second drive pulse signals are determined such that both the first and second drive pulse signals take a low level for a time (Ta) before and after each drive pulse of the first and second drive pulse signals, so that both the first and second transistors are OFF immediately before either of them is turned ON.

Abstract: A circuit arrangement for feeding a pulse output stage is specified, which has at least one capacitor and, connected to the latter, a load, for example a diode laser. The capacitor is connected to a voltage source via a coil. The voltage of the voltage source is applied to the coil by means of a pulsed switching device. The energy stored in the coil is used to charge the capacitor. The latter is discharged by the same or a further switching device, generating a useful pulse through the load.

Abstract: A computer controllable testing and monitoring station forms short-term intervals of simulated alternating current power level disturbance, either undervoltage (sag) or overvoltage (swell). The station forms the short term voltage sags or swells so that their effects on sensitive equipment can be measured. The starting point of the sag or swell disturbance, as well as the time duration of the disturbance, can be accurately controlled.

Abstract: A magnetic storage medium comprises a keeper layer of soft magnetic, saturable material disposed upon a magnetic storage layer. The keeper layer is disposed above the magnetic storage layer, and a non-magnetic "break" layer may be used between the keeper and the storage layer to reduce the exchange coupling between these layers. To increase the ability of the keeper layer to shunt flux from the magnetic storage layer, a longitudinal anisotropy is induced in the keeper layer. This establishes a desired magnetic orientation of the keeper which facilitates maintaining the regularity (i.e., relative uniformity) of the transitions, and reducing the magnetic interaction between transitions as the spacing between transitions is reduced to provide denser media. Specifically, the longitudinal anisotropy may be oriented either circumferentially or radially relative to the plane of rotation of the magnetic storage layer.

Abstract: Power supplied from a battery via a power-supply line is distributed via switching means to load drive lines, connected to loads, respectively. Memory means stores the data of current-breaking time characteristics providing the breaking time which corresponds to the amount of each excessive current and the capacity of each load. When any of the current detection means has detected an excessive current flowing through any of the load drive lines, control means breaks power supplied via the load drive line to the load, by opening the switching means immediately after the corresponding breaking time has elapsed.

Abstract: A .Iadd.system and .Iaddend.method .[.of.]. .Iadd.for .Iaddend.automatically starting and stopping an engine of a .[.truck.]. .Iadd.vehicle .Iaddend.to conserve fuel while maintaining the engine in a ready-to-start condition, and while controlling the temperature of .[.a truck sleeper unit.]. .Iadd.an interior portion of the vehicle.Iaddend.. The method includes the steps of selecting predetermined system parameters .[.via a password accessible interactive program, providing a first switch for selecting an automatic engine start-stop operating mode, providing a second switch for selecting an automatic temperature control mode for the truck sleeper unit, and providing safety apparatus which indicates when the truck engine may be safely operated in the automatic engine start-stop operating mode..]. The method further includes the step of overriding the .[.ignition switch.]. .Iadd.operator .Iaddend.control of the engine in response to a predetermined condition when .[.the.]. .Iadd.a .Iaddend.