Abstract: A system and method for measuring a material includes at least one transmitter for transmitting a first signal and a second signal. A variable reflector reflects a portion of the first signal at a first reflecting property to produce a first reflected signal, the portion of the first signal having traveled through the material. The variable reflector also reflects a portion of the second signal at a second reflecting property to produce a second reflected signal, the portion of the second signal having traveled through the material. A receiver receives the first received signal and the second received signal, the first received signal includes the first reflected signal having traveled through the material and the second received signal includes the second reflected signal having traveled through the material. The first reflected signal and the second reflected signal providing an indication of at least one property of the material.

Abstract: A system and method for measuring a material includes at least one transmitter for transmitting a first signal and a second signal. A variable reflector reflects a portion of the first signal at a first reflecting property to produce a first reflected signal, the portion of the first signal having traveled through the material. The variable reflector also reflects a portion of the second signal at a second reflecting property to produce a second reflected signal, the portion of the second signal having traveled through the material. A receiver receives the first received signal and the second received signal, the first received signal includes the first reflected signal having traveled through the material and the second received signal includes the second reflected signal having traveled through the material. The first reflected signal and the second reflected signal providing an indication of at least one property of the material.

Abstract: A system and method for measuring a material includes at least one transmitter for transmitting a first signal and a second signal. A variable reflector reflects a portion of the first signal at a first reflecting property to produce a first reflected signal, the portion of the first signal having traveled through the material. The variable reflector also reflects a portion of the second signal at a second reflecting property to produce a second reflected signal, the portion of the second signal having traveled through the material. A receiver receives the first received signal and the second received signal, the first received signal includes the first reflected signal having traveled through the material and the second received signal includes the second reflected signal having traveled through the material. The first reflected signal and the second reflected signal providing an indication of at least one property of the material.

Abstract: A system and method for measuring a material includes at least one transmitter for transmitting a first signal and a second signal. A variable reflector reflects a portion of the first signal at a first reflecting property to produce a first reflected signal, the portion of the first signal having traveled through the material. The variable reflector also reflects a portion of the second signal at a second reflecting property to produce a second reflected signal, the portion of the second signal having traveled through the material. A receiver receives the first received signal and the second received signal, the first received signal includes the first reflected signal having traveled through the material and the second received signal includes the second reflected signal having traveled through the material. The first reflected signal and the second reflected signal providing an indication of at least one property of the material.

Abstract: Exemplary embodiments of methods, apparatuses, and systems for seamlessly migrating a user visible display stream sent to a display device from one rendered display stream to another rendered display stream are described. For one embodiment, mirror video display streams are received from both a first graphics processing unit (GPU) and a second GPU, and the video display stream sent to a display device is switched from the video display stream from the first GPU to the video display stream from the second GPU, wherein the switching occurs during a blanking interval for the first GPU that overlaps with a blanking interval for the second GPU.

Abstract: Exemplary embodiments of methods, apparatuses, and systems for seamlessly migrating a user visible display stream sent to a display device from one rendered display stream to another rendered display stream are described. For one embodiment, mirror video display streams are received from both a first graphics processing unit (GPU) and a second GPU, and the video display stream sent to a display device is switched from the video display stream from the first GPU to the video display stream from the second GPU, wherein the switching occurs during a blanking interval for the first GPU that overlaps with a blanking interval for the second GPU.

Abstract: Exemplary embodiments of methods, apparatuses, and systems for seamlessly migrating a user visible display stream sent to a display device from one rendered display stream to another rendered display stream are described. For one embodiment, mirror video display streams are received from both a first graphics processing unit (GPU) and a second GPU, and the video display stream sent to a display device is switched from the video display stream from the first GPU to the video display stream from the second GPU, wherein the switching occurs during a blanking interval for the first GPU that overlaps with a blanking interval for the second GPU.

Abstract: A method and apparatus for delivering a device driver to an operating system without user intervention. One or more operating systems (e.g., different operating system programs, different versions of one operating system) execute on a computer platform. During booting of an operating system a device is identified for which a driver is needed. The driver is requested from a service processor of the platform, which includes memory or storage for storing multiple device drivers (or multiple versions of one driver, for different operating systems). The driver is retrieved from the service processor's storage and delivered to the operating system.

Abstract: The present invention relates to a spacer arrangement used in a duplex bearing system. The spacer arrangement has a lubricant chamber, a first spacer element within the lubricant chamber having a centrifugal ramp, and a second spacer element within the lubricant chamber having a baffle. The baffle divides the lubricant chamber into first and second chambers with each chamber communicating with one of the bearings in the duplex bearing system. The centrifugal ramp counteracts the effects of gravity and uses centrifugal forces to insure a supply of lubricant to one of the bearings, typically an upper bearing, in the duplex bearing system. The spacer arrangement has particular utility in a swashplate assembly used in helicopters, which swashplate assembly includes a stationary swashplate and a rotating swashplate with the duplex bearing arrangement being located between the two swashplates.

Abstract: The present invention relates to a spacer arrangement used in a duplex bearing system. The spacer arrangement has a lubricant chamber, a first spacer element within the lubricant chamber having a centrifugal ramp, and a second spacer element within the lubricant chamber having a baffle. The baffle divides the lubricant chamber into first and second chambers with each chamber communicating with one of the bearings in the duplex bearing system. The centrifugal ramp counteracts the effects of gravity and uses centrifugal forces to insure a supply of lubricant to one of the bearings, typically an upper bearing, in the duplex bearing system. The spacer arrangement has particular utility in a swashplate assembly used in helicopters, which swashplate assembly includes a stationary swashplate and a rotating swashplate with the duplex bearing arrangement being located between the two swashplates.

Abstract: A system and method for providing hot swap capability with minimal changes in a system which uses existing circuitry and drivers. In one embodiment, a computer system has a host processor and a hot-swap-capable device, each coupled to a Compact PCI bus. The device includes one or more pre-existing circuits (ASICs and/or standard off-the-shelf circuits) and corresponding pre-existing drivers. A hot-swap-capable bus bridge is interposed between the circuits and the Compact PCI bus to provide hot swap functionality while allowing the pre-existing circuits and drivers to be used without modification. In one embodiment, an Intel 21554 is used as the hot-swap-capable bus bridge. The 21554 is programmed to emulate a transparent bridge. Modified drivers in the OBP firmware and OS software allow the system to recognize the 21554 in this transparent configuration and to probe the secondary side of the 21554 for the circuits.

Abstract: For measuring surface motion or profile, laser beams of two different frequencies .omega..sub.1 and .omega..sub.2 (from one laser or two) are each split into two parts. Frequency shifts of .delta..omega..sub.1 and .delta..omega..sub.2 are introduced into one part of the respective beams. One part of each beam (preferably the parts which are not frequency-shifted) are directed on to, and reflected from, the surface of interest. These reflected parts of the beams, together with the non-reflected parts, are received at either a single or two separate photosensitive detectors so that the parts of similar frequency interfere coherently with one another. From the detector(s) is derived a difference frequency (.delta..omega..sub.1 -.delta..omega..sub.2) whose phase is a measure of the distance to the surface.