Robert Malm (born 21 August 1973 in Dunkerque) is a French-born Togolese football striker. He currently plays for AS Cannes. In January 2008, signed for Nmes ...
Robert E. Malm - Pacific Palisades CA 90272 Gregory E. Johnston - San Jose CA 95120
International Classification:
G01C 308
US Classification:
356 407, 3405453, 348140, 348143, 348144, 3561415
Abstract:
The invention is a method and apparatus for exercising surveillance over a surface from an observation point above the surface utilizing three-dimensional map data pertaining to the surface. The method comprises the steps (1) intercepting the light rays from a surface in a field of view, (2) separating the intercepted light rays into a plurality of light-ray clusters, a light-ray cluster comprising a plurality of light-ray bundles, a light-ray bundle being the light rays from a point on the surface in the field of view, a light-ray cluster being the light-ray bundles from a region of contiguous points on the surface, (3) determining the map coordinates of each region from which a light-ray cluster comes, (4) obtaining a measure of the radiant power and/or color of each light-ray cluster at predetermined time intervals, and (5) identifying the map coordinates of a surface activity from measurements of the radiant power of the light-ray clusters.
The invention is an apparatus and process for obtaining values for one or more alignment quantities using one or more transportable devices. The process consists of establishing and maintaining a transportable device in a reference position and a reference orientation, then establishing and maintaining the transportable device in a fixed position and orientation with respect to a target object, then determining the transportable object's position and orientation with respect to the target object from measurements of acceleration and angular velocity of the transportable device as it moves from the reference position and orientation to the fixed position and orientation with respect to the target object, determining the position and orientation of the target object from the position and orientation of the transportable device, repeating the preceding steps as required to obtain position and orientation data for other target objects, and finally determining the values of the alignment quantities.
The invention is a modular assembly of modular objects for autonomously executing a variety of tasks. The modular assembly consists of a modular object called a platform, one or more modular objects called modules which are mounted to the platform in accordance with a modular assembly system, and a modular bus system for distributing electrical power and electrical signals among the modular objects in the modular assembly. The modular assembly system utilizes modular object fasteners (MOFs) and MOF-accommodating features of modular objects for facilitating the attachment of a plurality of modular objects to one another thereby creating a modular assembly in any one of a variety of configurations, an MOF being activatable when object attachment surfaces associated with two modular objects are superimposed and two object attachment points on the object attachment surfaces coincide.
Infrared Imaging Array Employing Metal Tabs As Connecting Means
An infrared radiation detection device utilizing an array of metal electrodes deposited on the insulated surface of a suitable semiconductor material such as an indium antimonide substrate. The detector electrodes are read out by discharging each electrode to a preselected voltage through an integrating capacitor. The charge accumulated on each integrating capacitor is related to the charge collected at the insulator substrate interface under each detector electrode due to interaction of the infrared radiation with the indium antimonide substrate. The integrating capacitors and related charging and switching circuitry are located on a silicon substrate. The integrating capacitors and related circuitry on the silicon substrate are connected to the detector electrodes on the indium antimonide substrate by means of an array of metal tabs fabricated on the silicon substrate and deflected to contact the detector electrodes by electrostatic attraction. Each detector electrode and associated metal tab is isolated from the switching and charging circuitry and row connectors by a metal-oxide-semiconductor-field-effect transistor fabricated adjacent to each tab on the silicon substrate. The isolation provided by the MOSFETs avoids cross-talk between the various detectors in the array and avoids the diminution of the signals from the elements by the capacitance associated with row and/or column connectors.
A device for cyclically sampling the output voltage of a column of electrodes in a two-dimensional array of radiation detectors. The device samples the column voltage three times within a cycle and combines these samples in a manner which cancels out any linear change in column voltage with time during the cycle and obtains a measure of the voltage change due to charge transfer from a selected electrode in the column to an adjacent row electrode.
The expanded-range image digitizing apparatus utilizes a light-attenuating layer in concert with solid-state light detectors of limited dynamic range to provide a means for digitizing wide-dynamic-range images. The light-attenuating layer is placed in close contact with an image-containing medium. The light-attenuating layer is comprised of groups of regions replicated throughout the light-attenuating layer where each region in a group attenuates light passing through to a different degree and each group is the same in size and shape as a picture element of the image being digitized. When the image-containing medium is illuminated, the emerging light power from one of the regions of a group is of the proper magnitude to cause an associated detector to respond within its dynamic range. The emerging light power from the corresponding picture element of the image is then determined by multiplying the detected light power by the attenuation factor of the region producing the proper detector response.
A frame integrator for integrating each of the outputs of an array of radiation detectors whose output is obtained by the charge-injection-device technique. An array of analog integrators is connected using row and column interconnection techniques with an array of radiation detectors. The output from each radiation detector is sampled periodically and the detector returned to its unexposed condition to avoid saturation of the detector. The analog integrator associated with each detector integrates the sampled output of the detector to increase the effective sensitivity of the detector and to reduce the noise in the output. Each analog integrator consists of a precharged capacitor which is discharged through a field effect transistor in an amount proportional to the output of the associated radiation detector.
A digital system for demodulating coherent phase shift keyed signals. Maximum likelihood estimates of the unmodulated phase and rate of change of the unmodulated phase of the received signal relative to a local oscillator signal are used to improve the demodulation process. The maximum likelihood estimates are obtained from measurements of the phase of the received signal relative to the local oscillator signal over a predetermined set of keying intervals. The digital demodulation process permits rapid "lock-on" at low signal-to-noise ratios.