Aeroastro, Inc.

Credence Systems Corporation

Comtech Mobile Datacom Corporation

Other

University of California

Dcg Systems Gmbh

Orbcomm Sens, LLC

John Eric Hanson

Richard David Fleeter

Raymond G Zenick, Jr

Scott A McDermott

Jonathan Frank

Daniel Murdoch Cotton

Dario Meluzzi

Joe W Gray

Daniel Pinkel

Donna G Albertson

Nils W Brown

Greg Hamilton

Steven M Clark

A communication system is provided that allows the use of low-cost, low-power remote terminal units that communicate substantially asynchronously and independently to a base station. To minimize cost and complexity, the remote terminal units are configured similarly, including the use of substantially identical transmission schemes, such as a common Direct Sequence Spread Spectrum (DSSS) code. To minimize collisions among transmissions, the communication system is designed to use a high-gain antenna with a limited field of view, to limit the number of cotemporaneous, or overlapping transmissions that are received at the base station. To cover a wide area, the limited field of view is swept across the area of coverage. To overcome potential losses caused by collisions, the remote terminal units are configured to repeat transmissions; to minimize repeated collisions, the repeat interval and/or duration is randomized.

Low-cost satellite communication system

A collection optics arrangement integrating an objective lens and a solid immersion lens. An objective lens housing has an objective lens mounted inside. A solid immersion lens (SIL) housing is slidably mounted onto said objective lens housing, and a solid immersion lens is mounted onto the SIL housing. A spring imparts resilient force resisting the sliding of the solid immersion lens housing with respect to the objective lens housing.

Collection optics integrating an objective and a SIL

This invention provides improved components (e.g. array 'pins', print head, substrate platen, print head platen, and the like) for microarray printing devices as well as microarray printing devices incorporating such components. In one embodiment, this invention provides a microarray print head comprising a plurality of glass or quartz spotting capillaries disposed in a support that maintains a fixed spacing between the spotting capillaries and that permits the spotting capillaries to move in a direction parallel to the long axis of the capillaries.

Capillary pins for high-efficiency microarray printing device

A landing system is provided for accurate placing of collection optics in a microscope. In one example, a solid immersion lens (SIL) is used for light collection, and the landing system is operated to place the SIL in contact with an IC. A proximity sensor is used for determining the SIL's position with respect to the IC. The arrangement is attached to a z-motion stage. During the placement procedure, the navigation is performed in steps and at each step the compression of the SIL is measured relative to its uncompressed state. When a measured compression exceeds a preset threshold, a SIL landing is recognized. In one example, after a landing is recognized, a further compression is imparted to the SIL in order to place the SIL in a focusing distance to the objective lens.

Optics landing system and method therefor

A landing system is provided for accurate placing of collection optics in a microscope. In one example, a solid immersion lens (SIL) is used for light collection, and the landing system is operated to place the SIL in contact with an IC. A proximity sensor is used for determining the SIL's position with respect to the IC. The proximity sensor is attached to a z-motion stage. During the placement procedure, the navigation is performed in steps and at each step the compression of the SIL is measured relative to its uncompressed state. When a measured compression exceeds a preset threshold, a SIL landing is recognized. In one example, after a landing is recognized, a further compression is imparted to the SIL in order to place the SIL in a focusing distance to the objective lens.

The satellite communication system has a ground station and multiple remote terminal units (RTUs). The RTUs are designed to infrequently transmit relatively short duration messages, and to repeatedly transmit the same message, so that it is received by a sweeping high gain satellite antenna. To minimize costs, the system is designed to allow the use of RTUs that use a fixed modulation scheme. Because the transmissions are infrequent and short, the loss of messages due to collisions is unlikely. As a further optimization, the RTUs have CDMA transmitters that each use the same CDMA code, and the ground station has multiple CDMA correlators using the same CDMA code. By using the same CDMA code, the loss of messages due to collisions is further reduced. For transmitting to the RTUs, the ground station has multiple CDMA modulators, each using a second CDMA code that is preferrably orthogonal to the first CDMA code.

An inspection satellite is deployed in proximity to another satellite. The inspection satellite contains monitoring equipment and provides diagnostic information to a earth station to facilitate diagnosis of the other satellite and its equipment. The inspection satellite includes a flight control system that maintains the probe satellite in proximity to the satellite being monitored. In a preferred embodiment, the flight control system can also maintain the inspection satellite in an orbit about the satellite being monitored, to facilitate diagnostics based on patterns of signals. The monitoring equipment in a preferred embodiment for a transponder satellite includes an ability to monitor incoming signals and to compare the emissions from the satellite to them, to determine performance characteristics of the satellite equipment being monitored, such as phase shift and gain.

RF inspection satellite

The satellite communications system of this invention provides high-gain coverage to a wide geographic area with a minimum number of satellites. The satellites each include a high-gain antenna that periodically sweeps the satellite's service area to receive the messages from remote terminal units within the entire service area. In order to provide high gain, the antenna is designed to have a narrow beamwidth in at least one dimension. To cover the entire area, the antenna's field of view is swept across the entire service area. In the preferred embodiment, the antenna's field of view is essentially rectilinear, having a narrow beamwidth in one dimension and a beamwidth that extends across the entire service area in the other dimension, such that the sweeping effect is akin to that of a common push-broom. Because of the high gain of the satellite antenna, communications via the satellite can be accomplished using a low-gain wide-beamwidth antenna at the remote terminal unit.

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Mountain View, CA, United States of America

John Eric Hanson