Abstract: Electrical switch assemblies are described which include multiple switch bars. Each switch bar provides both physical and electrical separation between adjacent electrical components. Also, described are battery powered devices using the switch assemblies. Examples of devices using the switch assemblies include flashlights and remote control devices. The devices and switch assemblies avoid parasitic battery drain.

Abstract: Electrical switch assemblies are described which include multiple switch bars. Each switch bar provides both physical and electrical separation between adjacent electrical components. Also, described are battery powered devices using the switch assemblies. Examples of devices using the switch assemblies include flashlights and remote control devices. The devices and switch assemblies avoid parasitic battery drain.

Abstract: A method for collision avoidance for a machine is disclosed. The method includes detecting an obstacle with an obstacle detection system and generating a corresponding signal. The obstacle detection system includes an operator input device. The method also includes providing an obstacle detection warning in response to the signal. The method further includes determining with a controller whether the operator input device has been activated in response to the obstacle detection warning.

Abstract: A method for collision avoidance for a machine is disclosed. The method includes detecting an obstacle with an obstacle detection system and generating a corresponding signal. The obstacle detection system includes an operator input device. The method also includes providing an obstacle detection warning in response to the signal. The method further includes determining with a controller whether the operator input device has been activated in response to the obstacle detection warning.

Abstract: A collision avoidance system for a machine is disclosed. The collision avoidance system has a first obstacle detection system. The first obstacle detection system is configured to detect a first obstacle and generate a corresponding first signal. Additionally, the collision avoidance system has an operator interface. The operator interface has a display configured to communicate visual information to an operator. The operator interface also has an input device configured to receive selections from the operator and generate a corresponding second signal. In addition, the collision avoidance system has a controller. The controller is in communication with the first obstacle detection system and the operator interface. The controller is configured to control the display to provide a first dangerous obstacle warning to the operator, based on the first signal.

Abstract: A collision avoidance system for a machine is disclosed including an obstacle detection system configured to detect an obstacle. The collision avoidance system also includes a display configured to provide information to an operator. The collision avoidance system further includes a controller in communication with the obstacle detection system and the display. The controller is configured to control the display to indicate an obstacle detection based on information received from the obstacle detection system and determine a ground speed of the machine. The controller is also configured to determine a distance since the ground speed of the machine was last at a threshold speed and suppress the indication of the obstacle detection based on the distance since the ground speed of the machine was last at the threshold speed.

Abstract: A collision avoidance system for a machine is disclosed. The collision avoidance system has a first obstacle detection system. The first obstacle detection system is configured to detect a first obstacle and generate a corresponding first signal. Additionally, the collision avoidance system has an operator interface. The operator interface has a display configured to communicate visual information to an operator. In addition, the collision avoidance system has an interface module configured to detect a status of the machine and generate a corresponding second signal. The collision avoidance system also has a controller. The controller is in communication with the first obstacle detection system, the operator interface, and the interface module. The controller is configured to control the display to indicate a dangerous obstacle detection to the operator, based on the first and second signals.

Abstract: A collision avoidance system for a machine is disclosed. The collision avoidance system has a first obstacle detection system. The first obstacle detection system is configured to detect a first obstacle and generate a corresponding first signal. Additionally, the collision avoidance system has an operator interface. The operator interface has a display configured to communicate visual information to an operator. In addition, the collision avoidance system has an interface module configured to detect a status of the machine and generate a corresponding second signal. The collision avoidance system also has a controller. The controller is in communication with the first obstacle detection system, the operator interface, and the interface module. The controller is configured to control the display to indicate a dangerous obstacle detection to the operator, based on the first and second signals.

Abstract: A collision avoidance system for a machine is disclosed. The collision avoidance system has a first obstacle detection system. The first obstacle detection system is configured to detect a first obstacle and generate a corresponding first signal. Additionally, the collision avoidance system has an operator interface. The operator interface has a display configured to communicate visual information to an operator. The operator interface also has an input device configured to receive selections from the operator and generate a corresponding second signal. In addition, the collision avoidance system has a controller. The controller is in communication with the first obstacle detection system and the operator interface. The controller is configured to control the display to provide a first dangerous obstacle warning to the operator, based on the first signal.

Abstract: A method and system for controlling a solenoid-operated pressure regulator valve to achieve high compliance with respect to a commanded current in accordance with a precalibrated transfer function. A dither frequency imposed on applied current is changed at precalibrated regulated pressure values to avoid dynamic instability.

Abstract: Polarizing glass articles, optical isolators including polarizing glass articles, and methods of manufacturing polarizing glass articles and optical isolators are disclosed. The methods manufacture can be used to manufacture isolators exhibiting improved contrast ratio.

Abstract: A method and system for controlling a solenoid-operated pressure regulator valve to achieve high compliance with respect to a commanded current in accordance with a precalibrated transfer function. A dither frequency imposed on applied current is changed at precalibrated regulated pressure values to avoid dynamic instability.

Abstract: A learning aid is provided which allows the user to selectively mute one part of a prerecorded multipart drama and substitute his or her voice for that muted part. A recorded copy of a composite of the unmuted prerecorded portions of the drama, the user's voice, and additional sound effects may thus be created. A voice sensitive microphone allows the period of time for the user's part to be flexibly varied and prerecorded control signals provide visible cues to the user that the part selected is imminent.