Sun Electric Corporation

Motorola Corporation

Ulta-lit Tree Company

Ultra-lit Tree Co.

Howard L Frank

Perry Farazi

John DeCosmo

Nicholas C Hopman

Arvind M Patel

Frank Karim

Ashokkumar D Mehta

Clark S Wang

Dennis Blair Cherry

John W Swafford, Jr

Edward J Dohnal

Cheuk-Wah Chan

According to one embodiment, a diagnostic device () for identifying a defect in an LED light string includes a probe () and a polarity selector switch (). The LED light string includes a conductor provided within an insulation layer. The probe () is configured to penetrate the insulation layer and contact the conductor of an LED light string. The polarity selector switch () is electrically coupled to the probe () and configured to control the polarity of an electrical waveform provided to the probe ().

LED light string diagnostic and repair system

Light string diagnostic and repair device

An injector driver fault detect and protection device for use with fuel injection systems that include at least one solenoid (17) for controlling a fuel injection valve, control means for providing a control signal, injector driver means (14) responsive to the control signal for providing a drive signal, and a current control switch (16) being responsive to the drive signal for selectively closing and opening a power line that includes the solenoid (17) to thereby control the fuel injection valve. The device includes a fault detect and protection unit that receives current sense information regarding the flow of current through the solenoid (17), control signals from the control unit (13), and engine rotation data in the form of CAM degrees from a CAM position sense unit (19). Based upon this information, the fault detect and protection unit (11) can provide a fault protect signal to a fault control switch (12) to open circuit the solenoid (17) under specific fault conditions, and to provide a fault data signal under other fault conditions, as appropriate.

Injector driver fault detect and protection device

An apparatus and method for dynamic testing of a rotary movement-electrical signal transducer system, such as found in an automotive anti-blocking system.

Apparatus and method for testing of a rotary movement-electrical signal

An apparatus and method for simulation testing of an anti-block system, as utilized in automobiles.

Apparatus and method for simulation testing of an anti-block system

An apparatus and method for detecting a defective distributor is shown. The apparatus includes an input system providing the time of each cylinder firing after an initial firing of cylinder #1. A processor then determines the deviation between the actual time of firing and an optimum time thereof.

Apparatus and method for determining the integrity of a distributor for

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Skokie, IL, United States of America

Howard L Frank