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| 20090029661 | Amplifier with a Quadrature Amplitude Modulation (QAM) Modulated and a Continuous Wave Automatic Gain Control (AGC) Circuit - The present invention is directed to systems and methods for providing an AGC circuit for maintaining a constant output power level from an amplifier. More specifically, the AGC circuit includes a circuitry for determining whether an input signal is a QAM or a CW signal. A QAM/CW gain switch is then controlled depending upon the input signal. Depending upon the mode of the QAM/CW gain switch, the AGC circuit either attenuates the power level of the signal or bypasses the signal. The bypassed or attenuated signal is then compared to a reference signal so that the AGC circuit produces an adjusting voltage accordingly. The amplifier finally receives the adjusting voltage and attenuates the output power level of the signal. | 01-29-2009 |
| 20090196205 | CLOCK SYNCHRONIZATION IN A BIDIRECTIONAL NETWORK - An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator. Furthermore, the architecture may be integrated into other higher level devices such as, but not limited to, bridges, switches, routers, and/or gateways. In addition, the architecture may be used as a local network such as the networks commonly called local area networks (LANs). As a local network, the architecture supports guaranteed bandwidth for delivery of data flows to a plurality of host devices. Each host device might have a network interface card (NIC) that conforms to the architecture of the preferred embodiments of the present invention. Moreover, because the architecture may peacefully coexist with other services commonly-found in cable distribution networks, these other services may also be delivered to a host device. Thus, as a non-limiting example a host device may utilize the preferred embodiments of the present invention for local area network (LAN) data communication, and may also utilize cable television video channels in the same communication medium to carry various multimedia information. | 08-06-2009 |
| 20110215873 | NOVEL SWITCHED PHASE AND FREQUENCY DETECTOR BASED DPLL CIRCUIT WITH EXCELLENT WANDER AND JITTER PERFORMANCE AND FAST FREQUENCY ACQUISITION - Some embodiments of the present invention may include a DPLL circuit comprising a firmware. The firmware may comprise a re-sampled NCO phase detector capable of receiving a reference clock timing signal and a VCXO clock timing signal. The re-sampled NCO phase detector may comprise a resampler capable of receiving phase output and the VCXO clock timing signal and resampling the phase output; and a subtractor capable of receiving the resampled phase output and subtracting the resampled phase output from a calculated mean value of the phase output. The firmware may further comprise a frequency detector capable of receiving the reference clock timing signal and the VCXO clock timing signal; and a multiplexer capable of switching between the re-sampled NCO phase detector and the frequency detector dependent upon a frequency lock status. | 09-08-2011 |
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| 20150198471 | NON-CIRCULAR FLOWMETER - Flowmeters are disclosed herein that include one or more flow path features for improving the measurement accuracy or other aspects of the flowmeter. In some embodiments, the flowmeter includes a measurement section having a non-circular transverse cross-section in which one or more sensors for measuring flow are disposed. The non-circular measurement section can reduce distortion of ultrasonic waves, facilitate chordal measurements with flush-mounted transducers, and reduce the propagation distance between paired transducers. In some embodiments, the flowmeter includes a conditioning section with diametrically opposed longitudinal rib protrusions. The protrusions can reduce swirling flow, direct liquid components of a multi-phase flow towards the sidewalls of the flow path, and guide ballistic particles through the center of the flow path away from sensitive measurement devices. | 07-16-2015 |
| 20150198472 | FLOWMETER WITH FLOW CONDITIONER - Flowmeters are disclosed herein that include one or more flow path features for improving the measurement accuracy or other aspects of the flowmeter. In some embodiments, the flowmeter includes a measurement section having a non-circular transverse cross-section in which one or more sensors for measuring flow are disposed. The non-circular measurement section can reduce distortion of ultrasonic waves, facilitate chordal measurements with flush-mounted transducers, and reduce the propagation distance between paired transducers. In some embodiments, the flowmeter includes a conditioning section with diametrically opposed longitudinal rib protrusions. The protrusions can reduce swirling flow, direct liquid components of a multi-phase flow towards the sidewalls of the flow path, and guide ballistic particles through the center of the flow path away from sensitive measurement devices. | 07-16-2015 |
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| 20090000392 | FLOW SIMULATING CIRCUIT FOR TESTING OF FLOWMETERS - A simulating circuit ( | 01-01-2009 |
| 20090112509 | SYSTEM AND METHOD FOR MEASURING INSTALLATION DIMENSIONS FOR FLOW MEASUREMENT SYSTEM - A method includes measuring a radius of curvature at each of the plurality of positions of the outer peripheral surface of the predetermined section of the pipe is measured through the first device. A second device is detachably coupled to the plurality of positions along the outer peripheral surface of the predetermined section of the pipe. A wall thickness at each of the plurality of positions of the outer peripheral surface of the predetermined section of the pipe is measured through the second device. A cross-sectional area of the predetermined section of the pipe is measured based on a measurement data including the radius of curvature and wall thickness at each of the plurality of positions of the outer peripheral surface of the predetermined section of the pipe. | 04-30-2009 |
| 20100107777 | ULTRASONIC FLOW MEASUREMENT SYSTEM AND METHOD - An ultrasonic measurement system for measuring a flow in a conduit. Spaced ultrasonic signal transmitters are configured to launch a ultrasonic beams having a center axis of maximum intensity. Receiving transducers are configured to receive modulated signal energy from the beams and are located off the center axis of the beams to increase the modulation of the signal energy and to produce receiver output signals. A processing subsystem is configured to correlate the receiver output signals to determine a time delay indicative of the flow velocity in the conduit. | 05-06-2010 |
| 20100229654 | METHOD AND SYSTEM FOR MULTI-PATH ULTRASONIC FLOW RATE MEASUREMENT - In one embodiment, a multi-path ultrasonic flow meter for determining the flow rate of a fluid in a conduit is disclosed comprising at least two transducer pairs attached to the conduit at two chord locations, one greater than and one less than a mid-radius chord, wherein the composite ratio the two path velocities to the flow rate is substantially constant over the range of Reynolds numbers. In another embodiment, a method of determining the flow rate of a fluid in a conduit is disclosed comprising the steps of determining a composite velocity by determining a weighted average of a plurality of path velocities, determining a chord velocity ratio based on the path velocities, determining a profile correction factor based on the composite velocity and the chord velocity ratio, and determining the flow rate based on the composite velocity and the profile correction factor. | 09-16-2010 |
| 20110167906 | TORSIONAL SENSOR, METHOD THEREOF, AND SYSTEM FOR MEASUREMENT OF FLUID PARAMETERS - A torsional sensor for sensing at least one parameter of a fluid is disclosed. The torsional sensor includes a torsional portion coupled to a reference portion and including a plurality of projections extending outward and spaced apart from each other. At least a portion of the torsional sensor is mountable for immersion in the fluid and operable to propagate a torsional wave that interacts with the fluid along the at least portion of the torsional sensor so as to affect propagation of the torsional wave in a manner dependent on the at least one parameter of the fluid. | 07-14-2011 |
| 20120266679 | ULTRASONIC COUPLER ASSEMBLY - An ultrasonic coupler assembly for coupling an ultrasonic transducer to a pipe wall is disclosed, wherein the ultrasonic coupler is configured using three quadrilateral sections to reduce the temperature extreme to which the ultrasonic transducer is exposed and to improve the quality of the ultrasonic signal passing through the ultrasonic coupler. | 10-25-2012 |
| 20130146388 | ACOUSTIC WAVEGUIDE ASSEMBLIES - Acoustic waveguides are disclosed for mounting to a conduit. The acoustic waveguides provide a mounting area that minimizes the effect of the mount on the acoustic wave traveling through the waveguide while providing an effective seal, even under high pressure conditions. | 06-13-2013 |
| 20130329930 | ACOUSTIC WAVEGUIDE ASSEMBLIES - Acoustic waveguides are disclosed for mounting to a conduit. The acoustic waveguides provide a mounting area that minimizes the effect of the mount on the acoustic wave traveling through the waveguide while providing an effective seal, even under high pressure conditions. | 12-12-2013 |
| 20140020478 | ULTRASONIC WEDGE AND METHOD FOR DETERMINING THE SPEED OF SOUND IN SAME - A wedge and a method for determining the speed of sound in the wedge is disclosed. The wedge includes a reflecting wall and is configured such that a portion of the main ultrasonic signal transmitted by an ultrasonic transducer is reflected and travels through the wedge back to the ultrasonic transducer. The speed of sound can be determined based on the distance traveled by, and the time of flight of, the main ultrasonic signal and reflected ultrasonic signal in the wedge. | 01-23-2014 |
| 20140123767 | ULTRASONIC SIGNAL COUPLER - An ultrasonic signal coupling assembly including ultrasonic transducers attached to one or more ultrasonic couplers configured to be coupled to an exterior surface of a pipe. A height of the ultrasonic coupler or couplers is greater than a thickness of the pipe by a factor of about five or more, and a length of the ultrasonic coupler or couplers is greater than the height of the ultrasonic coupler or couplers. | 05-08-2014 |
| 20140123768 | ULTRASONIC SIGNAL COUPLER - An ultrasonic signal coupler includes a pipe having a first ultrasonic waveguide and a second ultrasonic waveguide penetrating the pipe so that ultrasonic transducers attached to ends of the ultrasonic waveguides communicate ultrasonic signals through the ultrasonic waveguides directly through a fluid traveling through the pipe. | 05-08-2014 |
| 20140136126 | MULTI-PHASE ULTRASONIC PIPE FLOW METER - A system for determining densities and proportions of phases in a multi-phase fluid flow (MFF) that can include an oil phase, a water phase, and a gas phase from a well. The system includes a first density sensor that senses the MFF at locations where the phases of the MFF are often separated, a second density sensor senses the MFF from the output of a phase mixer-homogenizer, and a third density sensor that senses, in real time, the MFF where the gas phase starts to separate or has separated from the liquid phase but where the liquid phases have not separated. The system also includes one or more processors for executing one or more programs to determine a density of the oil phase, a density of the water phase, a density of the gas phase, and proportions of phases including a water cut and a gas volume fraction based on readings from the first, second, and third density sensors. | 05-15-2014 |
| 20140331785 | FLUID DENSITY STRATIFICATION LOCATION SYSTEM, DEVICE AND METHOD - A fluid flow system, device, and method for locating a fluid layer in a fluid flow using an acoustic waveguide. The acoustic waveguide comprises a waveguide base segment, and a waveguide reflector segment. The waveguide reflector segment comprises a plurality of disc shaped waveguide reflectors along its length for locating a fluid layer. | 11-13-2014 |
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| 20130089638 | Compositions Comprising Maltotriose And Methods Of Using Same To Inhibit Damage Caused By Dehydration Processes - Compositions comprising maltotriose are disclosed herein. In certain embodiments, the compositions comprise maltotriose and at least one component whose function is subject to impairment by a dehydration process, such as a live microorganism. Methods for inhibiting damage caused by dehydration are also disclosed herein. In particular embodiments, the method includes preparing a composition comprising maltotriose and at least one component whose function is subject to impairment by a dehydration process and removing water from the composition by one or more dehydration processes. | 04-11-2013 |
| 20140242216 | Amino Acid And Protein Hydrolysate Based Formulas With A Stable Emulsion System - The present disclosure relates in part to an emulsion system comprising a waxy starch. The emulsion system is useful, in some embodiments, for incorporation into infant formulas comprising protein equivalent sources, such as formulas designed for individuals with certain protein allergies. Thus, in certain embodiments, the present disclosure relates to a nutritional composition comprising a protein equivalent source comprising a hydrolyzed protein, amino acids, or a mixture thereof, a fat source, a carbohydrate source, and an emulsifier system comprising a waxy starch. The emulsifier system may further include citric acid esters of mono- and di-glycerides or an octenyl succinic acid-modified starch, or both. | 08-28-2014 |
| 20140271979 | ANTI-REGURGITATION NUTRITIONAL COMPOSITION - The present disclosure relates to anti-regurgitation nutritional compositions for pediatric subjects and to corresponding methods of administering the anti-regurgitation compositions in order to promote healthy growth and development and to reduce the occurrence of gastroesophageal reflux (GER). The anti-regurgitation nutritional compositions comprise at least one hydrolyzed protein, at least one pectin source and at least one starch, such as a pre-gelatinized starch. These ingredients work synergistically to induce an increase in the viscosity of the nutritional composition in gastric or other acidic environments. | 09-18-2014 |
