Abstract: A code division multiple access (CDMA) communications device includes a CDMA receiver to isolate a CDMA signal, and a processor to generate a quantized sample representation of the CDMA signal. The processor performs a hard correlation between the quantized sample representation of the CDMA signal and a quantized representation of a reference to generate a coarse time alignment. Based upon the coarse time alignment, the processor performs a soft correlation between actual values of the CDMA signal and the reference.

Abstract: Drilling fluid used in borehole drilling is supplemented with a particulate additive obtained by shredding the packaging material in which the drilling fluid is supplied, for use as lost circulation material. This reduces the materials costs, shipping costs, and waste disposal costs associated with borehole drilling.

Abstract: An ad hoc wireless communications network includes wireless nodes arranged in a backbone net and stub nets coupled to the backbone net via respective wireless nodes defining gateway nodes. A method for the network includes transmitting node role information from each gateway node to respective wireless nodes within each stub net. The node role information includes node reactive routing directions for establishing a route outside of a given stub net. A route request is unicast transmitted from a first wireless node in a respective first stub net to a respective first gateway node based upon the node role information. The route request is a request to communicate to a second wireless node in a respective second stub net. The route request is transmitted from the first gateway node across the backbone net to the second gateway node of the second stub net.

Abstract: A tunable Radio Frequency (RF) filter device includes a tunable optical source configured to generate an optical carrier signal, and a modulator coupled to the tunable optical source and configured to modulate the optical carrier signal with an RF input signal. The tunable RF filter device may also include first and second optical waveguides coupled to the modulator and having first and second dispersion slopes of opposite sign, and an optical-to-electrical converter coupled to the first and second optical waveguides and configured to generate an RF output signal with a frequency notch therein based upon the tunable optical source.

Abstract: A tunable Radio Frequency (RF) filter device includes a tunable optical source generating an optical carrier signal, and a modulator coupled to the tunable optical source and modulating the optical carrier signal with an RF input signal. The tunable RF filter device may include first and second optical waveguide paths coupled to the modulator and having first and second dispersion slopes of opposite sign from each other, one or more of the first and second optical waveguide paths comprising an optical splitter and combiner pair therein, and an optical-to-electrical converter coupled to the first and second optical waveguide paths and generating an RF output signal with a frequency notch therein based upon the tunable optical source.

Abstract: A radio frequency (RF) communications device may include a power amplifier, an antenna, a tunable coupler between the power amplifier and the antenna, a processor, and an exciter module coupled between the processor and the power amplifier and generating an RF signal based upon a baseband signal. The processor may be configured to set the tunable coupler to a desired tuning and thereby defining a transfer function for the tunable coupler, and to generate an inverse transfer function of the transfer function of the tunable coupler. The processor may be configured to perform digital filtering upstream of the power amplifier based upon the inverse transfer function.

Abstract: An electronic device may include a substrate and a stacked arrangement of layers thereon. The stacked arrangement of layers may include a photovoltaic layer above the substrate, and an antenna ground plane above the photovoltaic layer. The antenna ground plane may include a first electrically conductive mesh layer being optically transmissive. The stacked arrangement of layers may further include a patch antenna above the photovoltaic layer and may include a second electrically conductive mesh layer being optically transmissive.

Abstract: An electronic device may include a substrate, and a patch antenna carried by the substrate. The patch antenna may include an electrically conductive mesh layer having a perimeter defined by perimeter segments including at least one pair of arcuate perimeter segments with a cusp therebetween. The patch antenna may also include at least one antenna feed coupled to the patch antenna.

Abstract: An electronic device may include a substrate and a stacked arrangement of layers thereon. The stacked arrangement of layers may include a visual display layer, and a patch antenna above the visual display layer. The patch antenna may include an optically transmissive electrically conductive mesh.

Abstract: A material sensing apparatus includes an excitation source configured to induce waves in a workpiece, and an optical waveguide interferometer configured to sense the induced waves in the workpiece. The optical waveguide interferometer includes a plurality of optical couplers and interconnecting optical fibers arranged to define a reference arm, a measurement arm, and a probe segment coupled to the reference arm and the measurement arm and having a probe segment end to be positioned adjacent the workpiece. An optical path length adjustor is coupled to the reference arm. A controller cooperates with the optical path length adjustor and the first optical detector. The controller is configured to adjust an optical path length of the reference arm to maintain a constant relationship with respect to an optical path length of the measurement arm, and to generate workpiece data based upon the first optical detector.

Abstract: A sensing apparatus comprises an excitation source configured to induce waves in a target, and a fiber optic interferometer configured to sense the induced waves in the target. The fiber optic interferometer comprises a probe segment having a probe segment end, and an adjustable coupler configured to permit setting a gap between the probe segment end and the target. A controller is coupled to the adjustable coupler and configured to set the gap between the probe segment end and the target.

Abstract: A biological sensing apparatus comprises an excitation source configured to induce waves in a biological target, and an optical waveguide interferometer configured to sense the induced waves in the biological target. The optical waveguide interferometer comprises a probe segment having a probe segment end, and an adjustable coupler configured to permit setting a gap between the probe segment end and the biological target. A controller is coupled to the adjustable coupler and configured to set the gap between the probe segment end and the biological target.

Abstract: A biological sensing apparatus includes an excitation source configured to induce waves in a biological target, and an optical waveguide interferometer configured to sense the induced waves in the biological target. The optical waveguide interferometer includes a plurality of optical couplers and interconnecting optical fibers arranged to define a reference arm, a measurement arm, and a probe segment coupled to the reference arm and the measurement arm and having a probe segment end to be positioned adjacent the biological target. An optical path length adjustor is coupled to the reference arm. A controller cooperates with the optical path length adjustor and a first optical detector. The controller is configured to adjust an optical path length of the reference arm to maintain a constant relationship with respect to an optical path length of the measurement arm, and to generate biological target data based upon the first optical detector.

Abstract: A method for making an electronic device includes forming an interconnect layer stack on a rigid wafer substrate having a plurality of patterned electrical conductor layers, a dielectric layer between adjacent patterned electrical conductor layers, and at least one solder pad on an uppermost patterned electrical conductor layer. An LCP solder mask having at least one aperture therein alignable with the at least one solder pad is formed. The LCP solder mask and interconnect layer stack are aligned and laminated together. Solder is positioned in the at least one aperture. At least one circuit component is attached to the at least one solder pad using the solder.

Abstract: In an embodiment, an image is provided to an augmented reality application program. The program detects colors and modifies the image. In particular, the program may analyze an image of a scene provided by a camera of a portable electronic device that may be problematic for color challenged users. It then modifies one or more colors such that a color challenged user viewing the altered image may perceive the scene colors as the colors would be perceived by a non-color challenged user viewing the scene.

Abstract: A mobile wireless communications device may include an antenna, and a receiver coupled to the antenna and being configured to use a modulation having memory for a received message in a block structure. The block structure may include a pair of mini-probes and a body therebetween. The receiver may be configured to demodulate the received message by determining a corresponding set of received signal characteristic values based upon the pair of mini-probes, and determining a decode starting point in the body based upon the set of received signal characteristic values. The receiver may be configured to demodulate the received message by at least, from the decode starting point, decoding the body in a first time direction, and decoding the body in a second time direction based upon a result of the decoding in the first direction.

Abstract: A juice processing apparatus includes a concentrator for generating at least one concentrated pulp stream, and a pulp pasteurizer coupled downstream from the concentrator. A flow restrictor is coupled in the at least one concentrated pulp stream for generating a pressure drop therein. The pressure drop is indicative of a concentration of pulp in the at least one concentrated pulp stream. At least one pressure sensor is associated with the flow restrictor for sensing the pressure drop. A controller is for controlling the concentrator based upon the sensed pressure drop.

Abstract: Various embodiments of methods and systems for designing and constructing displays from multiple light-modulating elements are disclosed. Display elements having different light-modulating and self-assembling characteristics may be used during display assembly and operation.

Abstract: A communications device includes a radio frequency (RF) receiver being scannable over a plurality of different frequencies and an analog to digital (AD) converter coupled to the RF receiver. The AD converter is configured to generate a receive bitstream. A processor coupled to the RF receiver and the AD converter. The processor is configured to perform, in parallel, calculating a received power level from the receive bitstream, attempting analog video decoding from the receive bitstream, and attempting digital video decoding from the receive bitstream. The processor is also configured to lock the RF receiver to a current frequency or scan the RF receiver to a next frequency based upon the received power level, and the attempted analog and video decoding.

Abstract: A system is for identifying a selected target in a geographic model. The system includes a database configured to store electronically a geographic model, different target model types with respective model-type metadata associated therewith, and different unique targets with unique target metadata associated therewith. A processor cooperates with the database and determines a proposed type-match between a selected target, with selected target metadata associated therewith, and one of the plurality of different target model types stored in the database based upon the selected target metadata and the model-type metadata. The processor also generates updated selected target metadata based upon confirmation of the proposed type-match, and determines a proposed unique target-match between the selected target and one of the different unique targets based upon confirmation of the proposed type-match and based upon the updated selected target metadata and the unique target metadata.