Abstract: A projector assembly and method for automatically correcting keystone distortion includes an image correction engine, a light engine, a projection lens having a projection axis, a processor, a directional sensor and an inclination sensor. The sensors determine the absolute vertical and horizontal direction of the projection axis. The inclination sensor determines the vertical zero reference. The direction sensor is used to determine the horizontal zero reference. The processor calculates vertical and horizontal difference angles between the absolute directions and zero reference values in the vertical and horizontal directions. Using difference angles, the processor calculates the keystone distortion and instructs the image correction engine to apply geometric and brightness correction to the image data proportional and inverse to the keystone distortion and lens parameters (field of view, focal length, imperfections, etc) such that the image projected onto a viewing screen, is free from keystone distortion.

Abstract: A method and system for switching signals over conductors is disclosed. The method and system comprises a plurality of encoders for receiving signals from a plurality of sources. The system further comprises a crosspoint switching matrix means for receiving encoded signals from the plurality of encoders and for providing decoded signals to a plurality of receivers. The crosspoint switching matrix means in a preferred embodiment includes a control system for controlling multiple remote receivers.

Abstract: A projector assembly and projection method for determining the amount of keystone distortion present in projection system and automatically correcting said distortion. The projection assembly includes an image correction engine, a light engine, projection lens having a projection axis, a processor, a directional sensor and an inclination sensor. The sensors determine the absolute vertical and horizontal direction of the projection axis and the processor calculates the vertical and horizontal difference angle by calculating the difference between the absolute vertical and horizontal directions and the vertical and horizontal zero references. The vertical zero reference is determined by the inclination sensor.

Abstract: A method and system for switching signals over conductors is disclosed. The method and system comprises a plurality of encoders for receiving signals from a plurality of sources. The system further comprises a crosspoint switching matrix means for receiving encoded signals from the plurality of encoders and for providing encoded signals to a plurality of receivers. The crosspoint switching matrix means in a preferred embodiment includes a control system which is controlled by multiple remote receivers.

Abstract: A wireless interface system comprising a set of input ports for keyboard, pointing device, and joystick signals, a data encoding circuit, a transmission unit, a receiving unit, a data decoding circuit, a keyboard data multiplexer unit, a pointing device data multiplexer unit, a joystick signal multiplexer unit, and a set of output interfaces for connecting to the corresponding computer ports. This system allows for the user to have a keyboard, pointing device, and joystick remotely located from the computer, and each input device shares a single wireless communication link to send its data to the computer.

Abstract: A method and system for switching signals over conductors is disclosed. The method and system comprises a plurality of encoders for receiving signals from a plurality of sources. The system further comprises a crosspoint switching matrix means for receiving encoded signals from the plurality of encoders and for providing decoded signals to a plurality of receivers. The crosspoint switching matrix means in a preferred embodiment includes a control system for controlling multiple remote receivers.

Abstract: Method of detecting the presence of Salmonella in a food sample including providing at least one DNA probe which is capable of selectively hybridizing to Salmonella DNA to form detectable complexes, contacting the DNA probes with the bacteria in the food sample under conditions which allow the probe to hybridize to Salmonella DNA present in the food sample to form hybrid DNA complexes, and detecting the hybrid DNA complexes as an indication of the presence of Salmonella in the food sample.