Abstract: Considerable manufacturing efficiency and flexibility is provided by configuring the lower surface of a chip carrier to include multiple holes specifically designed to receive coupling fibers. By appropriately positioning these holes, the coupling fibers can be aligned with necessary optical elements of optoelectronic chips carried by the chip carrier. Similarly, the opposite end of the fibers can be appropriately configured and positioned for coupling to waveguide structures or fiber optic structures which may be embedded in printed circuit boards. By utilizing an appropriately configured chip carrier, and related fibers, a signal transmission structure is achieved which effectively bridges the gap between a chip carrier and a related printed circuit board.

Abstract: A method of forming an optical structure includes forming a circular grating resonator (CGR) on a substrate, the CGR including a center disc and a plurality of concentric rings spaced from one another; forming an input planar waveguide and an output planar waveguide on the substrate, the input planar waveguide and the output planar waveguide optically coupled to the CGR; and forming an electrode pair on the substrate, coplanar with the input and output planar waveguides, the electrode pair comprising an electrically conductive material in contact with opposing ends of the center disc of the CGR so as to render the CGR capable of electro-optical control.

Abstract: A structure for electronics package for module packaging and a method of manufacturing a single chip module (SCM) or multi-chip module (MCM) for an opto-electronic package having an improved structure for heat dissipation and testing is disclosed. The optical transceivers are ideally located on a surface opposite to the electrical portion of the package. Variations on the module package include pluggable or socketed optical transceivers and card pacers that allow for the installation of multiple optical transceivers.

Abstract: The present disclosure is directed to a locomotive controller including an input device, a display and a processor for driving the display and receiving inputs from the input device. Software in the processor determines and drives the display to show a location of a train on a track and indicia of the location on the track of stopping distances for one of an emergency brake application, a full service brake application and at least one controlled stop brake application. Creep control is also provided.

Abstract: Printed circuit boards that include optical interconnects include a flexible optical waveguide embedded or locally attached to the board having at least one end mechanically decoupled from the board during fabrication that can be fitted with a mechanical connector. Also disclosed are processes for fabricating the circuit board.

Abstract: An optical structure includes a substrate, a circular grating resonator (CGR) formed on the substrate, the CGR including a center disc and a plurality of concentric rings spaced from one another; an input planar waveguide and an output planar waveguide each formed on the substrate, the input planar waveguide and the output planar waveguide optically coupled to the CGR; and an electrode pair, formed on the substrate, coplanar with the input and output planar waveguides, the electrode pair comprising an electrically conductive material in contact with opposing ends of the center disc of the CGR so as to render the CGR capable of electro-optical control.

Abstract: Printed circuit boards that include optical interconnects include a flexible optical waveguide embedded or locally attached to the board having at least one end mechanically decoupled from the board during fabrication that can be fitted with a mechanical connector. Also disclosed are processes for fabricating the circuit board.

Abstract: A remote control system for a locomotive. The remote control system includes a lead controller and follower controller connected to one another over a wireless communication link. The lead controller issues commands over the wireless communication link and those commands are implemented by the follower controller mounted on-board the locomotive. The lead controller is responsive to voice commands uttered by the operator.

Abstract: Techniques for circuit board processing are provided. In one aspect, a method of processing a circuit board having one or more optical waveguides associated therewith is provided. The method comprises the following steps. One or more etch stop layers in proximity to the one or more waveguides are provided, at least one of the etch stop layers comprising one or more fiducials therein. From a surface of the circuit board, the one or more etch stop layers are used to selectively remove material to provide openings having a defined positioning and depth in the circuit board. A circuit board having one or more optical waveguides associated therewith is also provided.

Abstract: A method and an apparatus for remotely controlling locomotives in a railway environment using radio frequency signals are provided. A remote operator programming unit (OPP) is used to set address information in the transmitter unit via a communication channel such as an infrared link. The use of the operator programming unit allows eliminating the need to open the casing of the transmitter during programming thereby reducing the probability of damaging the electrical components of the transmitter.

Abstract: The invention relates to a method and an apparatus for remotely controlling device, more particularly to a system and method for controlling locomotives in a railway environment using radio frequency signals. This invention makes use of a remote operator programming unit (OPP) to set address information in the transmitter unit via a communication channel such as an infrared link. The use of the operator programming unit allows eliminating the need to open the casing of the transmitter during programming thereby reducing the probability of damaging the electrical components of the transmitter. The invention also allows assigning a unique address to a transmitter/receiver pair in a remote control system. The invention further provides an apparatus for remotely programming a transmitter unit.

Abstract: The invention relates to a method and an apparatus for remotely controlling device, more particularly to a system and method for controlling locomotives in a railway environment using radio frequency signals. This invention makes use of a remote operator programming unit (OPP) to set address information in the transmitter unit via a communication channel such as an infrared link. The use of the operator programming unit allows eliminating the need to open the casing of the transmitter during programming thereby reducing the probability of damaging the electrical components of the transmitter. The invention also allows assigning a unique address to a transmitter/receiver pair in a remote control system. The invention further provides an apparatus for remotely programming a transmitter unit.

Abstract: The invention relates to a method and an apparatus for remotely controlling device, more particularly to a system and method for controlling locomotives in a railway environment using radio frequency signals. This invention makes use of a remote operator programming unit (OPP) to set address information in the transmitter unit via a communication channel such as an infrared link. The use of the operator programming unit allows eliminating the need to open the casing of the transmitter during programming thereby reducing the probability of damaging the electrical components of the transmitter. The invention also allows assigning a unique address to a transmitter/receiver pair in a remote control system. The invention further provides an apparatus for remotely programming a transmitter unit.

Abstract: The invention relates to a method and an apparatus for remotely controlling device, more particularly to a system and method for controlling locomotives in a railway environment using radio frequency signals. This invention makes use of a remote operator programming unit (OPP) to set address information in the transmitter unit via a communication channel such as an infrared link. The use of the operator programming unit allows eliminating the need to open the casing of the transmitter during programming thereby reducing the probability of damaging the electrical components of the transmitter. The invention also allows assigning a unique address to a transmitter/receiver pair in a remote control system. The invention further provides an apparatus for remotely programming a transmitter unit.

Abstract: The invention is related to an optical cross-connect switch comprising a waveguide connected with one waveguide end to a first optical port and connected with its other waveguide end to a steering device for directing an optical signal beam from said first optical port to a second optical port, said waveguide comprising a patterned waveguide layer disposed on a substrate. The steering device can be arranged in a cavity in the substrate. The optical cross-connect switch then comprises a substrate, which is partially covered by a waveguide layer and a cladding layer, patterned for example by etching processes, with at least one waveguide, connected with one end to one of the optical ports and with the other end, comprising core and cladding, unsupported by the substrate or remaining layers and extending into a switching plane above the cavity, which is located in the substrate.

Abstract: A command unit for remotely controlling a locomotive. The command unit has a user interface for receiving user inputs and a communication interface capable of transmitting signals conveying a locomotive command derived from one or more user inputs, in at least two RF transmission modes. The communication interface includes a selector for determining in which RF transmission mode the communication interface is to transmit the signal.

Abstract: A transmitter for remotely controlling a locomotive entity. The transmitter has a control entity capable of acquiring a plurality of states, including a linked state. The transmitter also has an interface in communication with the control entity for receiving an identifier of the locomotive entity via a communication link. The transmitter also has a proximity detector having a detection field, the proximity detector being in communication with the control entity to enable the control entity to switch to the linked state at least when the locomotive entity is in the detection field.

Abstract: A locomotive control system comprising a remote transmitter issuing RF binary-coded commands and a slave controller mounted on the locomotive that decodes the transmission and operates in dependence thereof various actuators to carry into effect the commands of the ground based operator.

Abstract: A locomotive control system comprising a remote transmitter issuing RF binary coded commands and a slave controller mounted on the locomotive that decodes the transmission and operates is dependence thereof various actuators to carry into effect the commands of the ground based operator.

Abstract: A locomotive control system comprising a remote transmitter issuing RF binary coded commands and a slave controller mounted on the locomotive that decodes the transmission and operates in dependence thereof various actuators to carry into effect the commands of the ground based operator.