Single Conductor Cable Patents (Class 324/543)
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Publication number: 20140176155Abstract: A device for attaching to an electric power line conductor includes a housing with an opening for accepting the power line conductor. The housing is configured to be grounded to the power line conductor. At least one magnetic core is configured to surround the power line conductor and power a power supply electronics module. A solar sensing element is configured to be mounted horizontally on the housing.Type: ApplicationFiled: November 21, 2013Publication date: June 26, 2014Inventor: Murray W. DAVIS
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Patent number: 8729905Abstract: This invention relates to a method of detecting faults on an electrical power line (7) and a sensor (5) for use in such a method. Preferably, the sensor is a line-mounted sensor (5). The method comprises the initial step of determining an initial impedance profile for the power line (7), and thereafter the method comprises the subsequent steps of the line-mounted sensor (5) transmitting a conducted communication signal (41) along the power line, receiving a reflected signal (43) particular to the transmitted communication signal and correlating the transmitted signal and the reflected signal. By correlating the signals, it is possible to determine the actual impedance of the power line. The actual impedance of the power line may then be compared with the initial impedance profile and it is possible to ascertain whether a fault exists on the power line. Preferably, the method uses an adaptive filter to determine the location of the fault.Type: GrantFiled: May 22, 2007Date of Patent: May 20, 2014Assignee: General Electric CompanyInventors: Michael Anthony McCormack, Charles Brendan O'Sullivan
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Patent number: 8704526Abstract: A system for detecting a location of fault in a cable includes a cable transmitting a fault current, a current transforming unit connected to the cable and receiving the fault current and detecting an original signal of fault current, a detecting unit detecting a first detail signal and a second detail signal from the original signal of fault current, where both signals are detail components in a high frequency band, a comparing unit comparing the first detail signal with a preset reference value and determining a fault in the cable, and a signal filtering unit generating a first filtering signal and a second filtering signal by use of the first detail signal and the second detail signal and outputting a fault detection signal based on a result of comparing both signals.Type: GrantFiled: September 16, 2013Date of Patent: April 22, 2014Assignee: Korea Electric Power CorporationInventors: Chae-Kyun Jung, Ji-Won Kang
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Publication number: 20140084941Abstract: A display device, which can prevent defects in a drive power transmission line and damage which is caused to a common electrode by such defects, and a method for detecting line defects of the display device are provided. The display device includes a plurality of drive power transmission lines for transmitting drive power to pixels, at least one defect detection line that crosses at least one drive power transmission line, and a defect detector for outputting a defect detection signal to the at least one defect detection line, collecting a feedback signal generated from the defect detection line according to the defect detection signal, and determining whether or not there is a defect in the at least one drive power transmission line based on comparison between the defect detection signal and the feedback signal.Type: ApplicationFiled: December 20, 2012Publication date: March 27, 2014Applicant: LG DISPLAY CO., LTD.Inventors: Soon-Il Yun, Chang-Ho Oh, Young-Hee Lee
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Patent number: 8680873Abstract: A method and apparatus for fault identification in a transmission line are provided. The method may include measuring at an end of the transmission line when the transmission line has a fault to obtain a measured signal, comparing the measured signal with a predefined standard signal, the predefined standard signal having beat frequency characteristic; and identifying that the fault is a transient fault if the measured signal matches the predefined standard signal according to a result of the comparison, or the fault is a permanent fault if the measured signal does not match the predefined standard signal according to the result of the comparison.Type: GrantFiled: August 29, 2008Date of Patent: March 25, 2014Assignee: ABB Research Ltd.Inventors: Ying Yang, Bin Su, Lei Jing, Qianjin Liu
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Patent number: 8643381Abstract: A test arrangement is provided for AC voltage testing of high voltage components including at least one inverter, at least one test transformer, at least one high-voltage inductor and at least one further high voltage component arranged as test components in a common cuboid container. The at least one high-voltage inductor is movable at least partially out of the container through at least one opening on a boundary surface of the container, by means of a movement apparatus. The at least one further high voltage component is movable within the cuboid container from a transport position to a working position.Type: GrantFiled: December 9, 2010Date of Patent: February 4, 2014Assignee: ABB Technology AGInventors: Peter Werle, Janusz Szczechowski, Matthias Steiger
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Publication number: 20140009167Abstract: An earth device is an earth device for earthing an object to be earthed. The earth device includes an earth-side wire, a detection-side wire which is normally out of conduction with the earth-side wire, an attachment member provided on one end portion of each of the earth-side wire and the detection-side wire and attached to the object to be earthed to provide conduction between the earth-side wire and the detection-side wire, an earth member for earthing provided on the other end portion of each of the earth-side wire and the detection-side wire, and a detection means connected to the detection-side wire to detect conduction in the detection-side wire.Type: ApplicationFiled: January 17, 2011Publication date: January 9, 2014Applicant: NITTO DENKO CORPORATIONInventors: Shinya Ueki, Yasuo Tsuji
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Publication number: 20130328570Abstract: A test device is used for testing a disc player, the disc player includes a power terminal and an audio output terminal The power terminal outputs a supply voltage when the disc player reads a disc. The test device includes a detecting unit connected to the power terminal and the audio output terminal, the detecting unit being powered by the supply voltage to detect whether the audio output terminal outputs a digital audio signal and generate a first level signal when the detecting unit detects that the audio output terminal outputs the digital audio signal; and a processing unit responding to the first level signal by determining that the audio output terminal of the disc player successfully outputs the digital audio signal.Type: ApplicationFiled: April 24, 2013Publication date: December 12, 2013Applicants: Hon Hai Precision Industry Co., Ltd., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventor: XIAO-QING ZHANG
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Publication number: 20130321010Abstract: Defects in a touch sensor are detected by coupling the sensor lines to a common signal line. Each of the sensor lines is tested by disconnecting the sensor line from the common signal line, connecting it to a voltage (e.g., ground) and comparing the voltage on the common signal line to a reference voltage. Detected defects include a short circuit between any two transmit and/or receive lines and a short between any transmit or receive line to ground.Type: ApplicationFiled: May 30, 2012Publication date: December 5, 2013Inventors: Daniel J. Cooley, Jeffrey L. Sonntag
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Patent number: 8593165Abstract: A solar generator for spacecraft or satellites, including a solar panel, a detector layer, a first evaluation means and a second evaluation means. The solar panel includes a plurality of solar cells. The detector layer includes first conductors substantially in parallel in a first plane and second conductors substantially in parallel in a second plane. The second plane is substantially in parallel to the first plane such that the first conductors are at an angle to the second conductors. The first evaluation means is for detecting a failure of one or more of the plurality of solar cells. The second evaluation means is for testing electrical status of the first conductors and the second conductors to determine whether the failure detected by the first evaluation means was caused by a space object damaging or severing one or more of the first conductors and the second conductors.Type: GrantFiled: January 7, 2013Date of Patent: November 26, 2013Assignee: Deutsches Zentrum fur Luft- und Raumfahrt e.V.Inventors: Waldemar Bauer, Oliver Romberg
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Patent number: 8593153Abstract: A system and method for detecting damage in an electrical wire, including delivering at least one test electrical signal to an outer electrically conductive material in a continuous or non-continuous layer covering an electrically insulative material layer that covers an electrically conductive wire core. Detecting the test electrical signals in the outer conductive material layer to obtain data that is processed to identify damage in the outer electrically conductive material layer.Type: GrantFiled: July 26, 2010Date of Patent: November 26, 2013Assignee: The United States of America as Represented by the United States National Aeronautics and Space AdministrationInventors: Pedro J. Medelius, Tracy L. Gibson, Mark E. Lewis
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Patent number: 8587323Abstract: A output assembly and method for diagnosing an electrical connection for reliably identifying a possible wire break to a load in redundantly connected output assemblies in which a control device for operating a switching device is configured such that the control device subjects the measured value to a test criterion, wherein satisfaction of the test criterion initially noted in the output assembly as a diagnosis fault, and the test criterion is applied cyclically within a time period comprising a waiting time, and wherein another output assembly performs a switch-off test during this time, thus allowing a statement to be made as to whether a wire break is present.Type: GrantFiled: January 25, 2011Date of Patent: November 19, 2013Assignee: Siemens AktiengesellschaftInventors: Martin Fichtlscherer, Tobias Gramolla, Mario Maier
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Patent number: 8564306Abstract: A method of evaluating an electrically conductive wire segment having an insulated intermediate portion and non-insulated ends includes passing the insulated portion of the wire segment through an electrically conductive brush. According to the method, an electrical potential is established on the brush by a power source. The method also includes determining a value of electrical current that is conducted through the wire segment by the brush when the potential is established on the brush. The method additionally includes comparing the value of electrical current conducted through the wire segment with a predetermined current value to thereby evaluate the wire segment. A system for evaluating an electrically conductive wire segment is also disclosed.Type: GrantFiled: November 19, 2010Date of Patent: October 22, 2013Assignee: GM Global Technology Operations LLCInventors: Edward Panozzo, Harold Parish
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Publication number: 20130271151Abstract: A method includes generating a pulse, transmitting the pulse on a first cable of a multi-cable communication system, monitoring a second cable of the multi-cable communication system for the pulse or a reflection of the pulse on the second cable, and, if the monitoring detects the pulse or the reflection on the second cable, outputting a notification of a short between the first cable and the second cable.Type: ApplicationFiled: June 10, 2013Publication date: October 17, 2013Inventors: Divya Srinivasan Breed, Brett A. McClellan
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Publication number: 20130257449Abstract: Described embodiments include a system and an apparatus. A described system includes a stationary device configured to be electrically coupled to a transmission line of a power transmission system and remain at a fixed location during a test measurement of the power transmission system. The system includes a mobile device configured to travel on the transmission line. The stationary device and the mobile device are further configured to cooperatively measure properties of the power transmission system.Type: ApplicationFiled: March 30, 2012Publication date: October 3, 2013Inventors: Roderick A. Hyde, Lowell L. Wood, JR.
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Publication number: 20130257450Abstract: According to one embodiment, in an electronic apparatus, a first pair of electrodes has a first electrode and a second electrode. A second pair of electrodes is disposed in parallel with the first pair, and has a third electrode and a fourth electrode. A third pair of electrodes is disposed between the first pair and the second pair in parallel with the first pair and the second pair, and has a fifth electrode and a sixth electrode. A first wire electrically connects the first electrode and the second electrode. A second wire electrically connects the third electrode and the fourth electrode. A third wire electrically connects the fifth electrode and the sixth electrode. A gel covers the first wire, the second wire, and the third wire. A first detection unit detects a break status of the first wire or the second wire.Type: ApplicationFiled: September 14, 2012Publication date: October 3, 2013Inventors: Takahiro OMORI, Kenji Hirohata, Tomoko Monda, Kazuyo Narita, Toshikatsu Akiba, Akihiro Koga, Katsumi Hisano
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Patent number: 8547105Abstract: A system for detecting a location of fault in a cable includes a cable transmitting a fault current a current transforming unit connected to the cable and receiving the fault current and detecting an original signal of fault current, a detecting unit detecting a first detail signal and a second detail signal from the original signal of fault current where both signals being detail components in a high frequency band, a comparing unit comparing the first detail signal with a preset reference value and determining a fault in the cable, and a signal filtering unit generating a first filtering signal and a second filtering signal by use of the first detail signal and the second detail signal and outputting a fault detection signal based on a result of comparing the both signals.Type: GrantFiled: September 21, 2010Date of Patent: October 1, 2013Assignee: Korea Electric Power CorporationInventors: Chae-Kyun Jung, Ji-Won Kang
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Publication number: 20130241571Abstract: A high voltage testing device for testing a coaxial cable including a central conductor and a shield conductor surround a periphery of the central conductor with an insulating material and applying a high voltage between the central conductor and the shield conductor of the coaxial cable, includes a cable connecting part that respectively connects two electrodes of an output of a tester which outputs a high voltage to the central conductor and the shield conductor of the coaxial cable. The cable connecting part includes a core wire short-circuiting part which electrically short-circuits between one end and the other end in the longitudinal direction of the central conductor of the coaxial cable and a shield wire short-circuiting part which electrically short-circuits between one end and the other end in the longitudinal direction of the shield conductor of the coaxial cable.Type: ApplicationFiled: May 2, 2013Publication date: September 19, 2013Applicant: YAZAKI CORPORATIONInventors: Kazuyuki Oiwa, Daisuke Yagi
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Patent number: 8536877Abstract: A power cable breaking detection method for a vehicle includes detecting currents of respective phases supplied to a three-phase motor from an inverter through at least a power cable, and a driving speed of the motor, determining whether the respective currents and the driving speed of the motor satisfy power cable breaking detection conditions, determining whether various conditions are satisfied with respect to a cable breaking sensing reference value of a current command performing cable breaking timer counting when the conditions are satisfied, and determining whether a predetermined period has elapsed such that a cable is considered broken when the predetermined period has elapsed.Type: GrantFiled: November 23, 2010Date of Patent: September 17, 2013Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Sanghyeon Moon, Youngkook Lee, Jin Hwan Jung
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Patent number: 8456168Abstract: An overhead power transmission line system includes detector circuitry to detect a flashover event on a power line conductor in response to test over voltage excitations applied to the power line conductor applied. Processing circuitry establishes an operational voltage level for the power line conductor taking into account the lowest applied test over voltage excitation that causes a flashover event.Type: GrantFiled: October 1, 2010Date of Patent: June 4, 2013Inventors: Roderick A. Hyde, Lowell L. Wood, Jr.
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Publication number: 20130134986Abstract: A display panel for display devices which enables precisely determining whether or not adjacent signal lines are shorted or opened and a method for detecting defects of the signal lines are disclosed. The display panel includes a substrate on which a plurality of signal lines to transmit various signals required by pixels is formed, and one of any two adjacent signal lines is connected to at least one of main signal transmission lines and the other one of the two adjacent signal lines is maintained in a floating state.Type: ApplicationFiled: May 24, 2012Publication date: May 30, 2013Applicant: LG DISPLAY CO., LTD.Inventors: Soon-Il YUN, Du-Hwan OH
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Publication number: 20130120001Abstract: A voltage-drop testing system, including a voltage-drop control apparatus, and a voltage-drop testing method adapted for the voltage-drop testing system based on LABVIEW department platform. When the LABVIEW department platform 12 is running, different groups of test data may be transferred to the PLD tester 20, when the PLD tester 20 finishes the testing based on all groups of test data, the PLD tester 20 feeds back the test results to the LABVIEW department platform 12, and the LABVIEW department platform 12 creates the voltage-drop testing graphic frame displaying the test results for the electronic device under test 2 for the convenience of a user.Type: ApplicationFiled: March 15, 2012Publication date: May 16, 2013Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: TSUNG-YUAN CHEN, KUEI-CHIH HOU, WEN-KAI CHIANG
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Publication number: 20130118149Abstract: Various systems and methods are provided for an exhaust gas treatment system. In one example, a system includes an exhaust gas treatment device and a wire wrapped around an exterior circumference of the exhaust gas treatment device. Continuity of the wire is monitored such that degradation of the wire due to degradation of the exhaust gas treatment device is indicated.Type: ApplicationFiled: November 10, 2011Publication date: May 16, 2013Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventor: Jeffrey David Sloss
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Patent number: 8427172Abstract: A test arrangement is provided for AC testing of electrical high voltage components including at least one inverter, at least one test transformer and at least one high voltage inductor arranged as test components in a common cuboid container. The at least one high voltage inductor runs along an imaginary axis and may be at least partly removed from the container through at least one opening in a limit face of the container by means of a movement device. The at least one high voltage inductor includes has integrated surge protection.Type: GrantFiled: December 8, 2010Date of Patent: April 23, 2013Assignee: ABB Technology AGInventors: Peter Werle, Matthias Steiger, Janusz Szczechowski
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Patent number: 8421475Abstract: The invention concerns a current sensor (22; 24; 26) for substantially in real time measuring electric current in a conductor. It is suitable for application in an indicator system (1) such as a short circuit indicator system for measuring instantaneous i.e. live current value, power, reactive power, phase angle, polarity, short circuits, in single or averaged values. It comprises current responsive means comprising a current transformer (2210), adapted for mounting adjacent to said electric conductor; and sensor circuitry (2220) comprising means for emitting a non-electrical wave signal as an output; said sensor circuitry (2220) comprises current level converter circuitry (2222) comprising a current-to-frequency converter adapted to provide said non-electrical wave signal as a current level indication pulse signal (CS1) having a pulse frequency (Pfcs) which is proportional to said real time electric conductor current, when the latter is within a predetermined current interval (I1-I2).Type: GrantFiled: July 6, 2007Date of Patent: April 16, 2013Assignee: Soren Thiim ApSInventor: Søren Thiim
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Publication number: 20130069668Abstract: The time required for a success or failure determination step and the precision of the success or failure determination step are optimized by determining region-based connector or wiring information and by adjusting increase and decrease of the number of such patterns. Region-based connector or wiring information is created for at least every described region in numbers equal to the number of combinations of a first wire harness, a second wire harness, and a third wire harness. The first wire harness is one of first wire harnesses arrangeable in Main 1, the second wire harness is one of second wire harnesses arrangeable in Main 2, and the third wire harness is one of third wire harnesses arrangeable in Sub, and presence or absence of error in connection of electric wires is inspected in the created region-based connector or wiring information.Type: ApplicationFiled: May 27, 2011Publication date: March 21, 2013Applicant: YAZAKI CORPORATIONInventor: Shigeo Funakoshi
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Patent number: 8384394Abstract: A communication apparatus including: a frame; a transmission line connectable to a public line network; a print circuit board including a frame ground terminal portion and configured such that a dielectric strength between the transmission line and the frame ground terminal portion takes a specific value in a state in which elements are connected to between the transmission line and the frame ground terminal portion via conductor patterns. The frame ground terminal portion includes: a first land formed on a first conductor pattern formed on a face of the print circuit board, a surge protection element being connected to the first conductor pattern; and a second land formed on a second conductor pattern formed on the face, elements different from the surge protection element being connected to the second conductor pattern. The first and second lands contacts the frame by fixing of the print circuit board to the frame.Type: GrantFiled: September 21, 2010Date of Patent: February 26, 2013Assignee: Brother Kogyo Kabushiki KaishaInventor: Tadahiro Kunii
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Patent number: 8373423Abstract: An Institute of Electrical and Electronics Engineers (IEEE) test apparatus includes an IEEE 1394 chip, an IEEE 1394 plug, an IEEE 1394 outlet, a test header, and a switch module. The IEEE 1394 chip, plug and outlet each include a ground pin, two pairs of differential signal pins, and a power pin. The test header includes ground pin sockets, two pairs of differential signal pin sockets, and a power signal pin socket. The three power pins and the power signal pin socket are electrically connected together. The switch module is operable to electrically connect the two pairs of differential signal pins of the IEEE 1394 chip to the two pairs of differential signal pins of the IEEE 1394 plug or electrically connect the two pairs of differential signal pins of the IEEE 1394 chip to the two pairs of differential signal pins of the IEEE 1394 outlet.Type: GrantFiled: August 30, 2010Date of Patent: February 12, 2013Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.Inventor: Xu Xia
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Patent number: 8339145Abstract: A signal generator is disclosed that generates a test signal to be applied to a first and second wire of a subscriber line. The signal generator is configured to generate the test signal at the first and second test signal outputs in a first time section such that a first potential at the first test signal output is changed from a first value to a second value and a second potential at the second test signal output is maintained constant at least during the change of the first potential. The signal generator is further configured to generate the test signal during a second time section such that the first potential at the first output and the second potential at the second output are oscillating with a predetermined frequency.Type: GrantFiled: September 21, 2009Date of Patent: December 25, 2012Assignee: Lantiq Deutschland GmbHInventors: Gerhard Noessing, Alberto Canella, David Schwingshackl
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Publication number: 20120293183Abstract: A method for identifying cable faults at the terminals of a broadband lambda probe comprising a Nernst cell and a pump cell in the exhaust gas duct of an internal combustion engine. The broadband lambda probe has a reference electrode terminal RE, an internal pump electrode terminal IPE and an external pump electrode terminal APE. A pump current is applied to the broadband lambda probe and a pulsed reference pump current is applied to the broadband lambda probe. Cable faults are identified by the evaluation of potential swings in current.Type: ApplicationFiled: May 16, 2012Publication date: November 22, 2012Applicant: ROBERT BOSCH GMBHInventor: Bernhard Ledermann
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Patent number: 8294474Abstract: An electrical switching circuit for operating a bus of a field bus system senses a fault current based on a first current of a first bus line and a second current of a second bus line.Type: GrantFiled: August 4, 2007Date of Patent: October 23, 2012Assignee: WABCO GmbHInventors: Olaf Ahrens, Jürgen Bode, Jens Frühauf, Andreas Goers
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Publication number: 20120249159Abstract: A back end of the line (BEOL) fuse structure having a stack of vias. The stacking of vias leads to high aspect ratios making liner and seed coverage inside the vias poorer. The weakness of the liner and seed layers leads to a higher probability of electromigration (EM) failure. The fuse structure addresses failures due to poor liner and seed coverage. Design features permit determining where failures occur, determining the extent of the damaged region after fuse programming and preventing further propagation of the damaged dielectric region.Type: ApplicationFiled: March 29, 2011Publication date: October 4, 2012Applicant: International Business Machines CorporationInventors: Ronald G. Filippi, Griselda Bonilla, Kaushik Chanda, Stephan Grunow, Naftali E. Lustig, Andrew H. Simon, Ping-Chuan Wang
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Patent number: 8278938Abstract: Disclosed are systems and methods for monitoring an electrical flat wire. An appropriate safety device is utilized to monitor the electrical flat wire. The safety device includes a line side input configured to connect a line side power source and receive an electrical power signal from the line side power source. Additionally, the safety device includes a flat wire connection configured to connect to an electrical flat wire. The safety device further includes at least one relay configured to control the communication of the electrical power signal onto the electrical flat wire. The safety device also includes a control unit configured to test the electrical flat wire for at least one of miswires, wire faults, or abnormal conditions and, based at least in part on the results of the testing, to control the actuation of the at least one relay.Type: GrantFiled: February 23, 2011Date of Patent: October 2, 2012Assignee: Newire, Inc.Inventors: Robert Jay Sexton, Fred Lane Martin, James Herman Pace
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Publication number: 20120239319Abstract: The system comprises a direct current bus having a positive terminal and a negative terminal. A first switching transistor and a second switching transistor have their respective switched terminals connected in series with respect to each other between the positive terminal and the negative terminal. A primary supply is arranged to generating a test voltage that is lower than an operational voltage of the direct current bus. The test voltage is applied between the positive terminal and the negative terminal of the direct current bus. A primary thermal circuit is associated with the supply for detecting whether the supply exceeds an operational temperature threshold. The thermal circuit provides a signal or logic level state indicative of a detected short circuit in the direct current bus if the primary supply exceeds the operational temperature threshold.Type: ApplicationFiled: July 29, 2011Publication date: September 20, 2012Inventor: Brij N. Singh
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Publication number: 20120217977Abstract: A test apparatus includes a sending chip, a receiving chip, first and second peripheral component interconnect express (PCI-E) buses between the sending and receiving chips, first to fourth pads, and first and second terminal resistors. Each pad includes first and second areas laid with copper and a void third area between the first and second areas. The first and second areas of the first and second pads are connected to the first and second PCI-E buses. The first areas of the third and fourth pads are connected to the first and second PCI-E buses. A first end of the first terminal resistor is connected to the second area of the third pad, a second end of the first terminal resistor is grounded. A first end of the second terminal resistors is connected to the second area of the fourth pad, a second end of the second terminal resistor is grounded.Type: ApplicationFiled: March 9, 2011Publication date: August 30, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventors: FENG-JUAN GAO, HUI LI
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Publication number: 20120176243Abstract: Disclosed herein are cables, cable systems, security systems, and detection components. According to an implementation, a cable may have a first portion and a second portion. The second portion may be further distant from a central axis of the cable than the first portion. The second portion is configured to provide notification when the second portion has been damaged or severed. The second portion may be a sheath and the first portion a pre-existing or conventional cable or wire such that the sheath provides notification when the sheath has been damaged or severed prior to the underlying cable or wire being damaged or severed.Type: ApplicationFiled: January 7, 2011Publication date: July 12, 2012Applicant: Andersen Holdings, LLCInventor: Jacob Andersen
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Publication number: 20120146662Abstract: Disclosed herein is a coaxial cable connector that includes a backscattering arrangement configured to receive an RF signal in a coaxial transmission line and produce a modulated backscattered response. The modulated backscattered response corresponds to a sensed condition in the coaxial cable connector.Type: ApplicationFiled: December 13, 2010Publication date: June 14, 2012Applicant: JOHN MEZZALINGUA ASSOCIATES INC.Inventor: Murat Ozbas
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Publication number: 20120139554Abstract: A power distribution monitoring system is provided that can include a number of features. The system can include a plurality of monitoring devices configured to attach to individual conductors on a power grid distribution network. In some embodiments, a monitoring device is disposed on each conductor of a three-phase network. The monitoring devices can be configured to measure and monitor, among other things, current and electric-field on the conductors. Methods of calibrating the monitoring devices to accurately measure electric-field are also provided. In one embodiment, a first monitoring device on a first conductor can transmit a calibration pulse to a second monitoring device on a second conductor. The second monitoring device can determine a degradation of the calibration pulse, and use that degradation to calibrate electric-field measurements around the conductor.Type: ApplicationFiled: December 6, 2011Publication date: June 7, 2012Inventor: Mark A. Parsons
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Publication number: 20120133373Abstract: In accordance with certain embodiments of the present disclosure, a cable fault detection device is described. The device includes a conformal monopole structure and a ground plane structure. The ground plane structure is configured to be generally parallel to the cable longitudinal axis.Type: ApplicationFiled: July 6, 2011Publication date: May 31, 2012Inventors: Mohamod Ali, Rashed H. Bhuiyan, Rogor Dougal, Md Nazmul Alam
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Publication number: 20120126822Abstract: A method of evaluating an electrically conductive wire segment having an insulated intermediate portion and non-insulated ends includes passing the insulated portion of the wire segment through an electrically conductive brush. According to the method, an electrical potential is established on the brush by a power source. The method also includes determining a value of electrical current that is conducted through the wire segment by the brush when the potential is established on the brush. The method additionally includes comparing the value of electrical current conducted through the wire segment with a predetermined current value to thereby evaluate the wire segment. A system for evaluating an electrically conductive wire segment is also disclosed.Type: ApplicationFiled: November 19, 2010Publication date: May 24, 2012Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Edward Panozzo, Harold Parish
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Patent number: 8184723Abstract: A system and apparatus for compensating cable losses in a video signal transmission system includes feedback circuits to determine the spectral attenuation of a received signal and to control an equalizer circuit to amplify selected frequencies of the received signal, and to determine the various times of arrival of two or more video signals and selectively adjust one or more delay lines to reduce the differences in their arrival times.Type: GrantFiled: February 27, 2009Date of Patent: May 22, 2012Assignee: Analog Devices, Inc.Inventors: Gregory Lawrence DiSanto, Jonathan D. Pearson, Robert Briano
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Patent number: 8164343Abstract: An automotive vehicle electrical system tester is provided for testing an electrical system having wiring which couple a load to a battery. The automotive vehicle electrical system tester is configured to measure an electrical parameter of the wiring and includes a first battery terminal connection configured to couple to a first terminal of the battery. A test connection is configured to couple to a wire of the electrical system which extends between the first terminal of the battery and the load. Test circuitry coupled to the first battery terminal connection and the test connection is configured to draw current from the battery along a path through the wire and to the test connection. The test circuitry measures an electrical parameter of the wire.Type: GrantFiled: October 30, 2008Date of Patent: April 24, 2012Assignee: Midtronics, Inc.Inventor: Kevin I. Bertness
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Publication number: 20120086460Abstract: A system includes a common line configured to conduct electrical power and one or more monitoring devices coupled to the common line and configured to operate when a positive voltage is provided on the common line. The system also includes a single use device coupled to the common line and an activation circuit coupled between the single use device and the common line, the activation circuit only allowing current to flow through the single use device when a negative voltage is provided on the common line.Type: ApplicationFiled: October 12, 2010Publication date: April 12, 2012Applicant: BAKER HUGHES INCORPORATEDInventor: James J. Freeman
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Patent number: 8154303Abstract: Methods are disclosed for identifying and locating points of impairment in a cable plant, such as that used for cable television (CATV). The methods utilize both known characteristics of signals as well as propagation times in free space and within the cable in conjunction with accurate determination of locations at which measurements are taken. The methods can be applied to both RF cable leaks as well as points of ingress of interference.Type: GrantFiled: October 10, 2008Date of Patent: April 10, 2012Inventors: Ben Maxson, Daniel K. Chappell
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Publication number: 20120068721Abstract: A power cable breaking detection method for a vehicle includes detecting currents of respective phases supplied to a three-phase motor from an inverter through at least a power cable, and a driving speed of the motor, determining whether the respective currents and the driving speed of the motor satisfy power cable breaking detection conditions, determining whether various conditions are satisfied with respect to a cable breaking sensing reference value of a current command performing cable breaking timer counting when the conditions are satisfied, and determining whether a predetermined period has elapsed such that a cable is considered broken when the predetermined period has elapsed.Type: ApplicationFiled: November 23, 2010Publication date: March 22, 2012Applicants: KIA MOTORS CORPORATION, HYUNDAI MOTOR COMPANYInventors: Sanghyeon Moon, Youngkook Lee, Jin Hwan Jung
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Publication number: 20120062239Abstract: A directional fault sectionalizing system that utilizes one phase voltage measurement and three phase current measurements to determine the directionality of high impedance faults on a three phase electric power circuit. This eliminates the need for two of the three voltage measuring devices at each monitoring station conventionally required to determine fault directionality, which makes it economical to install at a greater number of distribution tap points. The system is particularly useful for commonly used three-way tap points along distribution lines where three phase voltage measurement is not readily available. The system is capable of identifying faults under challenging circumstances, such faults occurring on unbalanced three phase power lines and faults occurring on tapped line segments where the currents are relatively small compared to the currents flowing in the main line segments.Type: ApplicationFiled: September 12, 2011Publication date: March 15, 2012Inventors: Joseph R. Rostron, John H. Brunke, Bradley John Schafer, Richard Charles Leonhardt, David Lester Moore
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Publication number: 20120032685Abstract: An Institute of Electrical and Electronics Engineers (IEEE) test apparatus includes an IEEE 1394 chip, an IEEE 1394 plug, an IEEE 1394 outlet, a test header, and a switch module. The IEEE 1394 chip, plug and outlet each include a ground pin, two pairs of differential signal pins, and a power pin. The test header includes ground pin sockets, two pairs of differential signal pin sockets, and a power signal pin socket. The three power pins and the power signal pin socket are electrically connected together. The switch module is operable to electrically connect the two pairs of differential signal pins of the IEEE 1394 chip to the two pairs of differential signal pins of the IEEE 1394 plug or electrically connect the two pairs of differential signal pins of the IEEE 1394 chip to the two pairs of differential signal pins of the IEEE 1394 outlet.Type: ApplicationFiled: August 30, 2010Publication date: February 9, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD.Inventor: XU XIA
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Publication number: 20120019260Abstract: A multipolar lead evaluation device may be configured to easily permit electrical contact to be made between a pacing system analyzer and the terminal pin and each of the terminal contacts of an implantable lead without damaging the implantable lead. Alligator clips may be used to secure electrical conductors from the pacing system analyzer to spring contact clips disposed within the lead evaluation device.Type: ApplicationFiled: July 8, 2011Publication date: January 26, 2012Inventors: G. Shantanu Reddy, Bruce A. Tockman, Christopher A. Fuhs, Bryan Swackhamer
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Publication number: 20120013346Abstract: A signal test device tests signal transmission performance of a DDR bus of a motherboard of a computer includes a connector, a checking module, and a number of signal collection units. The connector includes a number of connection pins. The checking module is electronically connected to the motherboard of the computer through the connection pins, and the checking module presets related a number of parameters of the DDR bus so that the motherboard can identify the signal test device. Each signal collection unit is electronically connected to the motherboard of the computer through the connection pins, and each signal collection unit includes a signal collection module. Each signal collection module provides a signal test point for collecting signals of the DDR bus.Type: ApplicationFiled: December 15, 2010Publication date: January 19, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTDInventors: LI XU, MING WEI
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Publication number: 20110316555Abstract: A signal integrity test system and method uses an oscilloscope to test a signal on each test point of a transmission line, obtains test parameter values of the signal on each test point, and compares the test parameter values with preset standard values. If any test parameter value does not match a corresponding preset standard value, a time-domain reflectometer is used to test an impedance value of the test point. If the impedance value matches a standard impedance value of the transmission line, the system and method determines the signal on the test point satisfies integrity requirements.Type: ApplicationFiled: August 12, 2010Publication date: December 29, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: HSIEN-CHUAN LIANG, SHEN-CHUN LI, SHOU-KUO HSU