Gm Global Technolgoy Operations, Inc.

Delphi Technologies, Inc.

Delco Electronics Corporation

Gula Consulting Limited Liability Company

Gary K Mitchell

Mark Billings Kearney

William P Whitlock

Michael Thomas Augustyn

J Alexander Easley

Mona L Toms

Robert W Stanley

William E Dyson

Boon H Oun

Joseph Robert Dockemeyer, Jr

Michael S Vanderipe

Kathryn A McComas

Long K Lee

Hung D Thai

A system for balancing current in a circuit is provided. Embodiments of the system include: a plurality of parallel load paths of the circuit, each of the plurality of parallel load paths comprising a single load or a plurality of loads connected in series; a current source electrically connected to the circuit, the current source configured to provide a constant current to the plurality of parallel load paths, the current comprising the constant current; a plurality of bipolar transistors, each of the plurality of bipolar transistors electrically connected in series to one of the plurality of parallel load paths, and each of the plurality of bipolar transistors comprising a base, an emitter, and a collector; a plurality of emitter resistors, each of the plurality of emitter resistors electrically connected to a respective emitter of an associated one of the plurality of bipolar transistors; a plurality of base resistors, each of the plurality of base resistors electrically connected to a respective one of the plurality of bipolar transistors to create a connection, wherein the connection electrically connects a base and a collector of one of the plurality of bipolar transistors; and a common base node electrically connecting each of the bases of each of the plurality of bipolar transistors.

Methods and apparatus for balancing current across parallel loads

A compact disc player and a method and an article of manufacture for controlling ejection of a compact disc are provided. The compact disc player includes a temperature sensor configured to generate a signal indicative of a temperature of the compact disc player utilizing a temperature sensor. The compact disc player further includes a controller operably communicating with the temperature sensor. The controller is configured to determine an ejection time interval value based on the signal. The controller is further configured to energize a motor coupled to a drive mechanism for a time internal corresponding to the ejection time interval value to induce the drive mechanism to move a compact disc to a predetermined position outwardly from a housing.

Compact disc player and method for controlling ejection of a compact disc from the compact disc player

In an automotive radio system an amplifier is capable of detecting speaker faults. A fault signal from the amplifier is received by a microprocessor which sends a fault message to a radio display and/or stores fault data which can be accessed via a serial data link by a diagnostic tool. One embodiment of the amplifier has an output pin for outputting distortion signal, and that pin is used when distortion is not likely to also output a fault signal which reveals the presence of a fault. Another embodiment of the amplifier has a data storage register which receives data on the type of fault and the affected channel, and a data bus to send the data to the microprocessor.

Method and apparatus for indicating speaker faults

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Kokomo, IN, United States of America

Gary K Mitchell