Abstract: A duplex-system digital-data transmitting apparatus includes a digital-data signal source which outputs serial data at a signal output end. The level of the data is converted by a first level converter circuit. The data is supplied to an FSK modulator circuit to be FSK-modulated. Carriers are, for example, at 11 MHz and 13 MHz and correspond to digital signals “1” and “0”, respectively. The modulated signal is amplified by a driver and is coupled to the human body by a capacitor of about 100 pF. When the human body comes into contact with an electrode, the modulated signal transmitted through the human body is amplified by a pre-amplifier, demodulated by a demodulator circuit, and shaped by a comparator. The level of the shaped signal is converted by a second level converter circuit, and the signal is supplied to a serial input end of a receiving unit. Transmission and reception are performed using a half-duplex system.

Abstract: A vertical-mount electrical power distribution plugstrip comprises a long, thin plugstrip body with several power outlet plugs distributed along the length of one face. A power input cord is provided at one end, and this supplies operating power to each of the power outlet plugs through individual relay control.

Abstract: A look-up table assists a source of logic of an apparatus in determining the power requirements of an unknown battery-powered device, so that a configurable power supply adjusts its output to provide the correct power to the device. The functions of the look-up table, in conjunction with generic templates and update-able historical information, if available, are substantially based on determining a “power signature” of the device. As a secondary function, the look-up table enables detection of battery charging activity and, when necessary, provides various means of disabling charging operations. More than one look-up table is available, and a look-up table can be located at any inter-connected device, apparatus, or power source. Inter-device communications further enhance the functionality of the look-up table, especially for collaborative data-acquisition.

Abstract: A battery-powered washing unit is described which includes a motor drive unit driven by a DC battery pack with a yoke attached around the motor drive unit. An elongate and extendable handle is connected to the yoke for the user to grasp, and various brushes are connectable to the output shaft of the motor drive unit. Preferably the battery pack is sealed and self-contained and includes an integrated switch member at the top of the battery pack which consists of two powered positions, a low power and high power for various rotary speeds of the brush. Furthermore, the connection between the yoke and the motor drive unit consists of a locking mechanism having at least two locked positions, and a swivel position where the motor drive unit and the brush can swivel relative to the brush handle.

Abstract: A charged species source and a charged species drain are provided. A moveable component is positioned proximate to the charged species source and the charged species drain. A first protrusion and a second protrusion are provided in contact with the moveable component, wherein at least one of the moveable component, the first protrusion and the second protrusion have a size of a micrometer scale or smaller. The moveable component is moved relative to the charged species source and the charged species drain to transfer electrical charge between the source and the drain.

Abstract: A controller suitable for use in controlling components in a bathing unit is provided. The controller includes a plurality of connectors adapted for providing electrical power to respective bathing unit components. Each connector includes a set of contact elements arranged in a common configuration. A first subset of the set of contact elements is adapted for generating a power signal characterized by a first current-voltage combination and a second subset of the set of contact elements is adapted for generating a power signal characterized by second current-voltage combination. In accordance with another aspect, a keying system is providing including a key member for engaging a connector and a complementary key member for engaging a electrical plug. The keying system enables the electrical plug and the connector to establish an electrical connection when the key member and then complementary key member match.

Abstract: In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor ? is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor ?.

Abstract: A substantially underwater system comprises a plurality of retrievable substantially autonomous subsea modules (12, 13, 17, 18) and switchgear (15, 16, 21a . . . h). A host facility (6) and the modules are connected in series so as to form a circuit, the host facility providing power to all of the modules. Operation of the switchgear electrically isolates a module or a plurality of serially adjacent modules so that the module or modules can be removed without cutting off the power supply to any of the remaining modules of the system. Module based parts of the switchgear (21a . . . h) only or a combination of module based parts (21a . . . h) and host facility based parts (15, 16) of the switchgear are actuated depending on which module or modules are isolated and removed.

Abstract: Operating range of feedback in CVT ratio control has been extended by use of stabilized values as an actual value of CVT ratio. The actual value of CVT ratio is derived from first and second pulse train signals provided by input and output speed sensors. Updating of rotational speed of the input member is repeated at intervals governed by the first pulse train. Updating of rotational speed of the output member is repeated at intervals governed by the second pulse train. Updating of an old value of a ratio between the latest value of the rotational speed of the input member and the latest value of the rotational speed of the output member to a new value thereof is repeated each time immediately after the rotational speeds of the input and output members have been updated since the latest updating of an old value of the ratio.

Abstract: In a semiconductor integrated circuit device and a contactless electronic device, an AC voltage is applied to first and second input terminals. A rectification transistor having a drain (or collector) connected to a second input terminal and gate (or base) and drain (or collector) connected to each other through a first resistor supplies a rectified current between the first and second input terminals. A first voltage detector means produces a control voltage so that the rectified voltage obtained on the source (or emitter) side of the first rectification transistor is equal to a predetermined reference voltage. The first voltage controlled current source can produce current in accordance with the control voltage and supply the current to the first resistor. Such a power supply circuit is mounted in the contactless electronic device.

Abstract: In an apparatus for measuring a specific absorption rate (SAR), a first near magnetic field distribution of a radio wave radiated from an array antenna of a reference antenna including a plurality of minute antennas is measured, and an SAR distribution with respect to the radio wave radiated from the array antenna is measured with a predetermined phantom. Then a distribution of a transformation coefficient &agr; is calculated by dividing the measured SAR distribution by a square of the measured first near magnetic field distribution, a second near magnetic field distribution of a radio wave radiated from a measured radio communication apparatus is measured, and an SAR distribution with respect to the radio wave radiated from the radio communication apparatus is calculated by multiplying a square of the measured second near magnetic field distribution by the calculated distribution of the transformation coefficient &agr;.

Abstract: A computer software program which functions as the operating system software for a electronic countermeasure set. The software allows a pilot in an aircraft to generate multiple ECM modes from a console in the aircraft. The counter software program also allows a user to reprogram the ECM modes in a laboratory environment.

Abstract: A cryogenic power conditioning system for fuel cells is proposed which is cooled by liquid hydrogen or liquid natural gas (methane) used to power these fuel cells, or by liquid nitrogen supplied by high-temperature superconducting cables. The main applications are in large vehicles such as transit buses. The result is a combined motor and motor-drive system exhibiting higher efficiency, lower weight, smaller size and lower cost.

Abstract: A computer software program which functions as the operating system software for a electronic countermeasure set. The software allows a pilot in an aircraft to generate multiple ECM modes from a console in the aircraft. The counter software program also allows a user to reprogram the ECM modes in a laboratory environment.

Abstract: A locking system for securing an electronic device includes a locking signal transmitter anchored at a physical location away from the electronic device to transmit a locking signal. A receiver resides in the electronic device to receive the locking signal. A controller is coupled to the receiver and circuitry of the electronic device to virtually lock the electronic device at its location when the receiver keeps receiving the locking signal, and to disable the electronic device from being accessed after the receiver has stopped receiving the locking signal for a predetermined time period. The locking does not have any effect on functioning of the electronic device as long as the locking signal is received. When the device is unlocked, failure of the device lock to receive the locking signal also does not have any effect on the electronic device.

Abstract: A multimedia system includes a housing having several shelves for receiving multimedia modules. Each module and each shelf is equipped with a plug connector element. The plug connector elements of the modules and of the shelves are compatible and are preferably designed as plugs and sockets. The plugs and the sockets can be designed in the same way so that each module can be plugged into each shelf, or they can be module-specific so that only a module designed for a particular shelf can be plugged into it. When a module is inserted into the shelf of the housing, the plugs are inserted into one another so that the module is now connected to the first bus line, which connects the plug connector elements of the shelves with one another. Over the second bus line other modules situated outside the housing or the rack can be connected to this first bus line. The first and the second bus line together form a common bus line, which is preferably designed as a ring line.

Abstract: A wiring sheet for installing a plurality of wires thereon includes a side plate portion, at which end portions of the wires forming circuits are collectively disposed.

Abstract: The application of external power to an external module connected to a portable information handling system enables the card detection signal to be asserted low, thereby allowing the personal digital assistant to detect and activate the external module. When external power is disconnected from the external module, the card detect signals turn off, thereby deactivating the external module and electrically disconnecting the external module from the personal digital assistant. Substantially all of the power for the external module is provided independently from the internal power supply of the portable information handling system.

Abstract: A direct-current converter converts an input voltage into an output voltage. It has and which comprises an operating voltage source, a power transformer having a primary side and secondary side, an input voltage source connected to the power transformer, at least one first power switch disposed on the primary side, and at least one second power switch disposed on the secondary side and rectifying the output voltage. The direct-current converter also has a regulating circuit, which is connected to the first power switch and the second power switch to control the timing of their switching functions, and an auxiliary power source arranged to supply power to the regulating circuit and connected to the operating voltage.

Abstract: In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor &agr; is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor &agr;.

Abstract: A connector with a limited ampacity supplies a load which draws more current than the ampacity of the connector. A buck converter changes the power passing through the connector to a higher current at a lower voltage to energize the load. Alternatively, if the load is intermittent, the current passing through the connector may charge a large capacitor which is able to supply a larger current to the intermittent load. The capacitor may also be used to power a continuous load, such as a memory, during failure of a power supply feeding the connector.

Abstract: A multifunction power/data distribution wiring system which consists of a multifunction cable system that provides power, data signal lines, and air cooling from a single wall outlet. Each electronic device, such as a computer or other device which attaches to a wall outlet has a single cable which brings power, data signal lines, and/or temperature controlled air conduit to that device. The power cord and power plug include an appliance coupler assembly which incorporates one or more of the following: (1) fiber optics signal line, (2) coax cable, (3) temperature controlled air supply line, and/or (4) telephone line for use with electronic devices which require both power and signal line and/or temperature controlled air connections. All of the data lines may be combined into a single high bandwidth line capable of simultaneous transmission of multiple data types.

Abstract: A multiple fan sensing circuit for use with a single fan sense input and method of operation thereof. The multiple fan sensing circuit includes a logic circuit, coupled to the fan sense input, that combines feedback signals from a first fan and a second fan. The first fan generates a tach signal indicative of the first fan operation and the second fan, e.g., a stuck rotor type fan, generates either an ON or OFF signal indicative of the second fan operation. In a related embodiment, the second fan generates a logic high signal in response to a failure in the second fan. In an advantageous embodiment, the logic circuit is a connector and a logic low level in the combined operational signal indicates a failed fan.

Abstract: The invention relates to a system for protecting a solar module against theft or unauthorized use by an authorized consumer. Said system comprises an interruption device on the solar module side and a release device on the consumer side. The interruption device transmits a first signal to the release device via a power line and interrupts the transfer, via a power line, of energy generated by the solar module to the consumer if the interruption device does not receive, via said power line, a second signal from the release device within a specified first period. This permits the secure and economical protection of the solar module, since a solar module protected in the manner described above is of no value without the second signal.

Abstract: Disclosed is a cross ventilation technique for systems with redundant power supplies. Such systems may be fault tolerant, continuous uptime systems wherein a failed power supply may be replace while a system is running to ensure 100% uptime. The cross ventilation technique allows fans of a properly functioning power supply to aid in the ventilation of a neighboring power supply with a failed fan. The technique may allow a power supply with a failed fan to be functional for sufficient time such that an operator may replace the failed unit and restore the system to normal functionality. Further disclosed are methods for detection of failures and operation of the system in a degraded mode while awaiting service.

Abstract: An AC adaptor with a replaceable protection device is provided. The AC adaptor includes a main body at least having a power supply casing and a recessed socket on the power supply casing, and a protection device inserted into the socket. The protection device includes a casing, a plurality of metal pieces therein, and a resistor device connected the metal pieces. By changing different resistor devices, the resistance of the protection device changes accordingly; as this result, the AC adaptor is capable of providing different output voltages.

Abstract: An adaptive control, capable of operating a plurality of models, that determines which model it is operating by scanning its transducer circuits. The control automatically deleting options requiring transducers the scan determines not to be present. A model may be further defined by detecting other components that alter the impedance of the transducer circuits. These components allow a circuit to further identify the features beyond simply which transducer is present and/or enable the control to determine whether a transducer is not present or is non-functional. When applied to control panels using display elements to indicate the options selected, the present invention permits deletion of an option(s) without removing the switch used to select that option. This allows a single contact to select from a group of options any of which may be deleted by removing the corresponding display element from the panel.

Abstract: A multi-directional power distribution unit (PDU) provides flexibility in the configuration of a computer system, disk drive array or other enclosure. The power distribution unit may be installed in one orientation for a power feed having a first configuration (e.g., from the front of the enclosure), and may be installed in a second orientation for a power feed in a second configuration (e.g., from the rear of the enclosure). In either orientation, a set of external power connectors couples to one or more external power feeds. Depending on the orientation, either a first or second internal connector will interface with the system or enclosure (e.g., a midplane, a power supply). The PDU may include circuitry for filtering electrical power and may also include a heat sink.

Abstract: The objective of the present invention is to provide an information processing device that is operable by a battery and which suppresses the generation of standing waves and has little radiation noise. In the information processing device of the present invention having means for connecting to a battery pack that stores a battery for supplying power to the information processing device, there is one or more capacitive element (for example, a capacitor) in the proximity of the terminals of the positive and negative poles of the battery when the battery pack is connected to the information processing device, and it is possible for at least the terminal of the positive pole of the battery or the terminal of the negative pole of the battery to be connected electrically to the ground of the information processing device by way of this capacitive element.

Abstract: In a solar cell roof structure, a photovoltaic power generating apparatus, a building and a method of construction of a solar cell roof, in which a solar cell module is provided above a roof base of a building, an electrical wire for the solar cell module is provided in a space between the solar cell module and the roof base, and the electrical wire extends into a space at the back of the roof base through a through hole provided in the roof base. A base sealing member on the roof base is provided for covering the through hole and an exit is provided in the base sealing member through which the electrical wire extends into the space between the solar cell module and the roof base at a portion of the base sealing member other than a portion just over the through hole of the base sealing member. The base sealing member can include a heat-resisting or fire resistive material on the roof base for covering the through hole.

Abstract: An underwater hydrocarbon production system comprises power supply means (1,3,4) at or for use at a remotely located station (2) for providing DC; electrical means (6) at or for location underwater for using DC to provide power for an underwater device; and transmission cabling (5) for transmitting DC from the power supply means to the electrical means.

Abstract: What is described here is an array for the contact-less transmission of electrical signals or energy, respectively, from at least one transmitter to several receivers.

Abstract: A central power source and method for distributing power to at least one sensor and/or actuators connected to or integrated in an LCC. In an aspect of the invention, a power distribution system is provided comprising a power source, at least one sensor, an LCC structure, and at least one routing means for directing the energy through the LCC structure. In another aspect, the at least one sensor is connected to an LCC bus connected to an electronic system. In still another aspect, an energy storage means for storing the energy received by the at least one sensor is provided. The invention is also directed to a method for distributing power comprising transmitting energy using a power source, directing the energy through an LCC structure, and receiving the energy from the power source using the at least one sensor.

Abstract: A varying signal, which may be a feedback signal, is combined with a control signal to control the actuators (117 and 119) of a switch. The method compensates for varying temperature conditions as well as variations in the manufacturing process of the actuators (117 and 119) and a member (101) of the switch that is attached to the actuators (117 and 119), which member (101) changes positions to change the state of the switch. The varying signal, in combination with the control signal, determines a pulse width, during which time energy is applied to the actuators (117 and 119).

Abstract: A system for simultaneous bi-directional transmission of signals over transmission lines between devices having interface ports includes a first circuit for generating the output signal and a second circuit having first and second terminals. The first terminal is coupled to the first circuit and the second terminal is coupled to the interface port. A signal level at the first terminal corresponds to a first combination of the input and output signals, and a signal level at the second terminal corresponds to a second combination of the input and output signals. A third circuit is coupled to the first and second terminals of the second circuit for determining the input signal based on the first and second combinations of the input and output signal levels.

Abstract: The present invention relates to a locking technology adapted to a place which requires an electronic locking apparatus such as a safe, an entrance door, a drawer, a cabinet, etc., and in particular to an improved electronic locking apparatus capable of preventing an intruder from illegally unlocking a locking apparatus and implementing a complicated and variable communication signal system between an input apparatus and an opening and closing apparatus in an electronic locking apparatus which is formed of an input apparatus and an opening and closing apparatus for implementing an electronic locking apparatus as a reliable locking apparatus.

Abstract: A housing for use in a vehicle to accommodate a printed circuit board (20, 22) carrying electronic components is provided. The housing has a generally parallelepipedal hood (10) made of plastics and having a plug collar (14) on one of its narrow side walls (12). A base plate closes off the hood (10). The printed circuit board (20) is mechanically and electrically conductively connected on three of the four corners of the hood (10) to a metallic mounting bushing (26). At each of these corners, the hood (10) has a mounting flange (16) and the mounting bushings (26) are anchored in the mounting flanges (16) of the hood (10).

Abstract: In one aspect the present invention provides an AC/DC or DC/DC adapter, comprising circuitry to generate a signal proportional to the maximum adapter current. In another aspect, the present invention provides a portable electronic device, comprising circuitry to receive a signal proportional to the maximum current supplied to the portable electronic device and a charger controller. Still another aspect of the present invention provides an adapter topology system, comprising an AC/DC or DC/DC adapter comprising circuitry to generate a signal proportional to the maximum adapter current; and a portable electronic device adapted to receive power from said adapter and to receive said signal proportional to the maximum adapter current.

Abstract: The circuit configuration and the associated method allow reducing the 1/f noise of MOSFETs in an electronic circuit, especially in an integrated circuit with one or more MOSFETs. At least one direct current and/or at least one direct voltage source for adjusting constant working point(s) of the MOSFET(s) is/are assigned to one or more or all MOSFETs. At least one periodically oscillating current and/or voltage source is assigned to one or more or all MOSFETs so that the respective working points periodically oscillate about the constant working point(s) in such a manner that impurity states in the oxide of the MOSFET, which are recharged under the condition of a constant working point according to the principles of statistics such that they determine the 1/f noise signal, are no longer recharged statistically but at a lower probability due to the modulatory frequency of the periodically oscillating sources.

Abstract: A controller housing for a water pool apparatus has two separate enclosures disposed back-to-back. The two separate enclosures are electrically connectable by electrical connectors disposed in the adjoining walls of the two enclosures. The electrical connections are aligned with one another so that pressing the two enclosures towards one another automatically places the two enclosures into electrical communication. In one embodiment of the invention, the two enclosures are attached to one another by a pair of disengageable hinges.

Abstract: A semiconductor integrated circuit device has an output circuit composed of a P-channel transistor whose source is connected to a terminal for receiving a supplied voltage and an N-channel transistor whose source is connected to a terminal for receiving a ground voltage, with the node between the drains of the two transistors used as the output terminal of the output circuit. A capacitive circuit element is connected between the sources of the two transistors, and thus in parallel with the output circuit, so as to suppress variations that occur in the current supplied from the supplied power as a result of a current being fed through the output circuit to or from a load connected to the output terminal. This helps keep constant the voltage that is supplied to an internal circuit that is connected in parallel with the output circuit, and thereby stabilize the operation of the internal circuit.

Abstract: Sink Electricity is the decrease of motion of electrons and their transmission which is the opposite of electricity.

Abstract: A method and device for providing series compensation for rotating electric alternating current machines connected either directly, or via a static current converter, to a three-phase distribution or transmission network. The stator of the electric machine is Y-connected. A capacitive circuit for the fundamental frequency of the voltage is connected to each phase between the low voltage side of the winding and a ground of the transmission network.

Abstract: A power supply detects power requirements of an electrical device and configures itself to provide the correct power to the device. By using a connector that isolates the device from its battery, the power supply can provide power to the device, recharge the battery, recharge the battery while at the same time providing power to the device, or provide power to the device while preventing the battery from being recharged. A switch used with the connector creates various circuits and is controllable by the power supply, the electrical device, by signals from the electrical device, or by a third device. The power supply may provide power to a plurality of devices and may be used with other power supplies to form a power grid. A master control unit receives inputs from each of the power supplies and controls the delivery and supply of power being the power supplies.

Abstract: An external storage device connected to electronic equipment through a cable includes a switch for selecting functions of the main unit of the external storage device. A user freely sets the function of the external storage device by simply operating the switch. This arrangement eliminates the need for disassembling the external storage device to switch the function thereof. The switch may be externally exposed out of the case of the external storage device.

Abstract: A gas insulated switching device including a series of pressure containers 1 and 4 mutually connected, in which a conductor 2 is positioned in an inside center, and an insulating and arc-extinguishing gas is filled in a space around the conductor 2, and a current transformer fabricated by Rogowskii coils for detecting a current passing through the conductor 2, the current transformer is attached to flanges of the pressure containers 1 and 4 via a metallic adaptor 5, wherein the current transformer is accommodated in a groove formed toward an inside of the metallic adaptor 5 and uses the metallic adaptor 5 to obtain an earth potential, whereby the gas insulated switching device having the current transformer with high accuracy can be miniaturized.

Abstract: A control system for a pool and spa. Main line voltage is provided through a single line voltage service and a single ground fault circuit interrupter circuit, facilitating a ground fault test and simplifying installation. The control system acts as a power distribution system for controlling the pool and spa equipment, with a circuit board assembly including individual fuse protection devices and switching circuits. A test algorithm is included, wherein the control system is disabled from normal operation if the GFCI test fails. The pool operator manually enters a water fill command, and the controller system automatically opens the fill valve for a predetermined time interval, and then automatically closes the valve. An emergency disconnect switch is mounted near the bathing area, connected by low voltage wiring to the controller system cabinet. The controller system senses the emergency switch closure and disconnects line voltage to the line voltage loads.

Abstract: A controller housing for a water pool apparatus has two separate enclosures disposed back-to-back. The two separate enclosures are electrically connectable by electrical connectors disposed in the adjoining walls of the two enclosures. The electrical connections are aligned with one another so that pressing the two enclosures towards one another automatically places the two enclosures into electrical communication. In one embodiment of the invention, the two enclosures are attached to one another by a pair of disengageable hinges.

Abstract: A powering arrangement for an undersea cable system provides that each branch of the system is supplied with a current equal to half of the current in the trunk. By coupling both branches to the trunk, the current adds at the branching unit. Upon occurrence of a power path fault in any branch, a virtual ground moves to the site of the fault. In addition, an image virtual ground moves to a similar point in the branch that does not have the cable fault. As a result of this implementation, the cable power system is able to tolerate at least one fault in a branch without necessitating repair, and can tolerate some multiple branch faults depending upon their location. In contrast to the operation of existing power-switched branching units, the fault-tolerant branching unit does not require down-powering and re-powering in order in order to change the power configuration, e.g., to allow a virtual ground to be re-located at shunt fault sites that occur in either trunk or branches.

Abstract: A control device of a cooling device controls a fan based on a desired temperature around a CPU set by a target value setting unit and a temperature detected by a temperature detecting unit, so that the temperature around the CPU substantially coincides with the set desired temperature. When the detected temperature exceeds the desired temperature, the control device causes the fan to rotate. At this time, the control device monitors the level of a noise generated by the fan by means of the noise detecting unit. The control device increases the value of the voltage supplied to the fan within a range in which the detected noise does not vary abruptly. As a result, the rotation speed is gradually increased to a predetermined value without causing an abrupt rise of a noise, which may acutely irritate the user.