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| Number | Title | Issue Date |
| 8013474 | System and apparatuses with multiple power extractors coupled to different power sources In some embodiments, an apparatus or system may include multiple power extractors each coupled to a different power source. The power extractors may be in parallel or in series. The extractors and power supplies may be joined together in a frame. A power source and ... | 09/06/2011 |
| 7839026 | Power discharge control system A power discharge control system for eliminating residual voltage of electronic components in an electronic device, is proposed, which includes a control IC for outputting first electrical signals of a first level and a second level respectively corresponding to pow... | 11/23/2010 |
| 7839025 | Power extractor detecting a power change In some embodiments, a power extractor operates in a manner to obtain more power transferred from the source to the load than typically is obtained without the power extractor. The power extractor may perform universal impedance matching as this is seen from either ... | 11/23/2010 |
| 7800250 | Connection of an internal regulator to an external filter/stabilization capacitor through a selectable external connection and prevention of a current surge therebetween An integrated circuit device provides a choice of external pins (connections) that may be user selectable for coupling an external filter/stabilization capacitor to an internal voltage regulator. However, connecting the output of a internal voltage regulator to an u... | 09/21/2010 |
| 7791222 | Multi-output power supply device A multi-output power supply device includes a first power switch, a first switch controller that controls the first power switch, a transformer that transforms a power supplied from the first power switch, first through Nth output circuits connected to a secondary s... | 09/07/2010 |
| 7372355 | Remote controlled wall switch actuator A device to actuate a switch. The switch has a switch toggle movable between a first position and a second position. The device includes a switch yoke movable between the first position and the second position adapted to engage the switch toggle and move therewith. ... | 05/13/2008 |
| 7321834 | Method for calculating power flow solution of a power transmission network that includes interline power flow controller (IPFC) Power flow models of Interline Power Flow Controllers (IPFC) for large-scale power systems are studied, in details. Mathematical models of the IPFC, using the d-q axis decompositions of control parameters are derived. In this framework, for each IPFC, only two contr... | 01/22/2008 |
| 7173410 | Proximity sensor combining impedance, frequency and decay constant information Systems and methods are disclosed that compensate for temperature drift in a proximity sensor, such as an extended range inductive proximity sensor. Voltage measurement can be taken before, and during damped oscillatory decay of a voltage in a resonant circuit in th... | 02/06/2007 |
| 7173411 | Inductive proximity sensor using coil time constant for temperature compensation Systems and methods are disclosed that facilitate determining coil temperature in a proximity sensor, such as an extended range inductive proximity sensor. Voltage measurements can be taken before, and during, damped oscillatory decay of a voltage in a resonant circ... | 02/06/2007 |
| 7123729 | Dual use of an integrated circuit pin and the switching of signals at said pin In a signal processing system with an IC having an intrinsic signal provided at a pin of the IC, a first operational function (de-emphasis) for the signal is provided at the pin, and further along in the signal flow path, a second operational function (variable atte... | 10/17/2006 |
| 7026861 | Electronic door latch system with water rejection filtering A control circuit receives inputs from first and second field effect sensors. The control circuit produces a control output only if the second field effect sensor senses proximity or touch more than a predetermined time after the first field effect sensor senses pro... | 04/11/2006 |
| 7006078 | Apparatus and method for sensing the degree and touch strength of a human body on a sensor An improvement in sensor for detecting contact with a human resistive element is disclosed. This design uses additional components to avoid discharging capacitors through the human resistive element, thereby sparing the user the uncomfortable sensation associated th... | 02/28/2006 |
| 6965228 | Proximity switch encapsulated in a plastic housing and having a shield A proximity switch having a coil former (3) which is fitted with at least one coil (4, 5, 6), has an associated board (8) and is held by a plastic housing (1), and having an electrically conductive shield (2) between the coil forme... | 11/15/2005 |
| 6933931 | Method and apparatus of position location An apparatus for sensing the location of user input is disclosed. The apparatus may include a display unit including a screen having a resistive coating disposed on its surface. The apparatus may utilize a sensing signal emanating from the screen through the resisti... | 08/23/2005 |
| 6836170 | Impedance trimming circuit A common bias section is composed of a first series circuit having an internal resistor and an external resistor connected in series and an operational amplifier having a first input terminal connected to a reference voltage, a second input terminal connected to a V... | 12/28/2004 |
| 6593672 | MEMS-switched stepped variable capacitor and method of making same The present invention relates to a stepped micro electromechanical structure (MEMS) capacitor that is actuated by a plurality of MEMS switches. The MEMS switches may be within the stepped capacitor circuit, or they may be actuated by an independent circui... | 07/15/2003 |
| 6424058 | Testable on-chip capacity The invention relates to a testable on-chip capacitor cell 10 including a decoupling capacitor (Ci) which can be disconnected from the power distribution network and discharged through a cell internal discharge circuit. An externally controllab... | 07/23/2002 |
| 6256385 | Power supply adapter circuit An adapter circuit PSA includes a comparator module OA, and a regulation module RM for normally adjusting the value of an output voltage Vout intended to be applied to an external circuit to a predetermined nominal regulation value Vreg0. In response to a... | 07/03/2001 |
| 5962932 | Power supply apparatus with circuit load sensor A power supply apparatus 10 with circuit load sensor provides an extension cord 20 having first and second ends extending from an enclosure 30. Within the enclosure, a power supply indicator circuit 40 lights an LED in response to the plug of the extensio... | 10/05/1999 |
| 5770969 | Controllable decoupling capacitor A decoupling capacitor and protection circuit is provided that will assist the power supply network in stabilizing the voltage near circuits that demand short rapid transitions in electrical current. The protection circuit also significantly reduces the a... | 06/23/1998 |
| 5506457 | Electronic switch for decoupling capacitor An electronic switch circuit switches out bad decoupling capacitors on a high speed integrated circuit chip. The circuit comprises a control device that operates in the subthreshold or off device state to detect leakage in a decoupling capacitor. This con... | 04/09/1996 |
| 5414709 | Circuit for generating a configuration signal for a network system A station of a ring network includes (1) a circuit for generating a configuration signal for connecting the station into the network and (2) a load circuit coupled to the first node and ground for receiving a DC component of the configuration signal. The ... | 05/09/1995 |
| 5391928 | Switching circuit having a reduced output impedance In a switching circuit for use in a mobile telephone device in controllably transmitting a speech signal to a radio transmission unit through an output terminal (312), a first switch (31) is controlled by a control signal which is supplied to a control te... | 02/21/1995 |
| 5375027 | Fail safe cartridge fire unit A fail-safe circuit for preventing an inadvertent communication of a signal from an input terminal to an output terminal includes a series switching network electrically connected between the input terminal and the output terminal. The series switching ne... | 12/20/1994 |
| 5313105 | Signal line increased current kicker terminator apparatus A terminator apparatus used with a SCSI bus line controls the voltage level of a notch occurring in data and/or control signals transferred on the bus line. The terminator apparatus includes a termination network, a current switching device, and a program... | 05/17/1994 |
| 4905849 | Overhoist prevention system An overhoist prevention system suitable for use on a crane comprises (a) a proximity switch (17), (b) a movable detector plate (10) normally biassed away from the proximity switch, (c) an actuator (5) adapted for use with the hoist wire (4) for moving the... | 03/06/1990 |
| 4843514 | Electrical connection sentry system Positive assurance of correct connection, in supplying electrical utilization equipment from a current source, is provided when it is critical to safety and particularly when receptacle outlets are used or a fixed wiring installation required which may be... | 06/27/1989 |
| 4550310 | Touch sensing device A new type touch sensing device comprises a touch panel with a plurality of transparent touch electrodes, a LC parallel resonant circuit connected to the touch electrode and an oscillation circuit. The LC resonant circuit has a resonant point on a same fr... | 10/29/1985 |
| 4443275 | Method of producing a magnetic gate Magnetic gate, including a magnet having a magnetic pole with an at least partly flat surface, a semiconductor chip having an integrated circuit, a mechanically permeable metal piece, and means attaching the semiconductor chip to the magnetically permeabl... | 04/17/1984 |
| 4378504 | Proximity switch A high-frequency oscillation type proximity switch comprising a resonance circuit in which a detection coil is used as a pickup for sensing the approach of an object thereto and a resonance capacitor is disposed at a position very close to the detection c... | 03/29/1983 |
| 4369376 | Magnetic gate and method of production thereof Magnetic gate, including a magnet having two poles, one of the poles having an at least partly flat surfaces, a magnetically permeable metal piece bridging the magnetic flux of the magnet from one to the other of the poles, and a semiconductor chip having... | 01/18/1983 |
| 4222113 | Transmit-receive switching unit The invention relates to a transmit/receive switching unit for use between a transmit/receive converter and the transmission line of a transmit/receive device having a voltage source. The unit has transmitting and receiving channels with the receiving cha... | 09/09/1980 |
| 4158781 | Transmit receive solid state switch for electroacoustic transducers A solid state transmit-receive switching element having multiple resonant rcuits connected in a bridge arrangement by back-to-back zener diodes. While receiving, the zener diodes have a high impedance and the bridge arrangement acts as two series tuned ci... | 06/19/1979 |
| 3980995 | Alarm system It is herein disclosed a closed circuit alarm system comprising a number of alarm detectors, which system comprises an amplifier coupled through condensers to a first alarm relay and which is further coupled to a second relay the arrangement being such th... | 09/14/1976 |
| 3968380 | High gain relays and systems The disclosure relates to high gain electrical relays which are operable at very low power levels and which, when arranged in a relay system with impedance matching to an energizing power source, are operable at the low power levels used in energizing int... | 07/06/1976 |
