Abstract: The present invention creates and stores target representations in several coordinate representations based on biologically inspired models of the human vision system. By using biologically inspired target representations a computer can be programmed for robot control without using kinematics to relate a target position in camera eyes to a target position in body or head coordinates. The robot sensors and appendages are open loop controlled to focus on the target. In addition, the invention herein teaches a scenario and method to learn the mappings between coordinate representations using existing machine learning techniques such as Locally Weighted Projection Regression.

Abstract: The present invention is a piezoelectric crystal oscillator using parametric amplification to enhance the Q. Parametric amplification is accomplished by driving the same region of the crystal as used for the oscillator with an overtone of the crystal resonator.

Abstract: The present invention is a programmable and latching retro-reflective construct suitable for use as an optical label in an optical labeling system. The invention contains retro-reflective structures such as lens beads, corner cubes or other retro-reflecting type structures. The retro-reflective construct further comprises a wavelength selective, programmable and latching reflecting structure located at the reflecting surfaces of the retro-reflective structures. The optical construct can optionally contain additional optical filtering structures. Methods for fabricating the invention are also described.

Abstract: An input analog signal is applied to electrodes bracketing electro-optically responsive waveguides being driven by a continuous wave or pulsed laser. The waveguides have reflection elements installed with transmission spectra sized, located and designed to transmit the laser light to photodetectors. The transmission of the laser light depends on the shift in transmission spectra caused by the applied analog voltage. The reflection element transmits laser light according to a digital encoding design. The second embodiment describes a device and method for converting high frequency analog signals greater than approximately 10 GHz into digital signals. The high frequency quantizer relies on reflectors reflecting the laser light as a high frequency RF pulse propagates along electrodes bracketing the electro-optically responsive material in the opposite direction of the laser light.

Abstract: The present invention improves the yield of integrated circuit manufacture by making the circuit more tolerant of varying thicknesses of the InterLayer Dielectric prior to metallization and interconnection. The sensitivity to the thickness of the ILD is reduced by first coating the devices with an etch stop layer, exposing the areas of the devices where interconnections will be made, selectively etching away the etch stop layer over the interconnection areas, adding the Interlayer Dielectric and then finally etching away the ILD to expose the contacts and continuing the processing through interconnection of the devices.

Abstract: A two stage plasma etching technique is described that allows the fabrication of an enhancement mode GaN HFET/HEMT. A gate recess area is formed in the Aluminum Gallium Nitride barrier layer of an GaN HFET/HEMT. The gate recess is formed by a two stage etching process. The first stage of the technique uses oxygen to oxidize the surface of the Aluminum Gallium Nitride barrier layer below the gate. Then the second stage uses Boron tricloride to remove the oxidized layer. The result is a self limiting etch process that uniformly thins the Aluminum Gallium Nitride layer below the HFET's gate region such that the two dimensional electron gas is not formed below the gate, thus creating an enhancement mode HFET.

Abstract: In some embodiments, a variable stiffness structure is provided having a plurality of constant stiffness members. The plurality of constant stiffness members are movably adhered together through a friction force generated by a normal force. Vibration generators are operatively coupled to the plurality of constant stiffness members. The vibration generators can vibrate at a plurality of frequencies. The friction is responsive to the plurality of frequencies whereby providing a change in stiffness of the variable stiffness structure. The variable stiffness structure may have different shapes, for example, beam, rod, plate, or cylindrical. The vibration generators may be ultrasonic resonators in some embodiments.

Abstract: An leaky coaxial cable antenna with high radiation efficiency and low insertion loss is described. The outer shield of the coaxial cable is constructed to facilitate energy transfer between the bifilar mode and the monofilar mode by constructing the outer conductor of a first conductive strip wrapped in a spiral about the dielectric and a plurality of second conductive strips wrapped in a counter spiral about the first but spaced serially along the length of the coaxial cable such that portions of the cable are wrapped by a single spiral and the other portions are wrapped by two spirals.

Abstract: An input sampler interface to a track and hold circuit that decouples a high bandwidth (possibly optical domain) input signal from a lower bandwidth electrical domain of a subsequent track and hold circuit or other circuit.

Abstract: The invention is a multi-color display screen that has built in optical memory for each pixel location. The optical memory is optically read and optically programmed. The screen itself distinguishes between the specific colors from which a full-color (or multi-color) image is constructed and modulates the intensities of the component colors that it directs toward a viewer. The screen provides enhanced image resolution and reduces information bandwidth required to control the display the image.

Abstract: A method, apparatus, and computer program product are presented for providing a measure of fault tolerance and security in the operation of cross layer communication agents (CCA) in a hybrid network. Specifically, this method, apparatus and computer program provide the detection and control necessary to prevent network disruptions due to failures, attacks, or link unavailability.

Abstract: The present invention relates to a process for fabricating integrated circuit system. More particularly, the process allows for fabrication of highly integrated system-on-a-chip modules through heterogeneous integration of different semiconductor technologies wherein alignment targets on the base semiconductor are used for precise lateral positioning of device structures above.