pera Method for operating an internal combustion engine By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for operating an internal combustion engine in which a speed-based feature of the internal combustion engine, which is correlated with an indicated mean effective pressure of the fuel, is determined during the warm-up of the internal combustion engine and an ideal fuel quantity, which is to be injected into at least one combustion chamber of the internal combustion engine during the warm-up, is ascertained therefrom. Full Article
pera Navigation system with fuzzy routing mechanism and method of operation thereof By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method of operation of a navigation system includes: receiving an origin and a destination; receiving a route keyword for routing between the origin and the destination; identifying a via point matching the route keyword; calculating a keyword group locale based on the via point within a group distance threshold from a keyword group center; and calculating a travel route from the origin to the destination traversing the keyword group locale for displaying on a device. Full Article
pera Placement based arithmetic operator selection By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Methods and systems are described for placing arithmetic operators on a programmable integrated circuit device (e.g., a PLD). Placement of arithmetic operators of a data flow graph in one of multiple regions (e.g., a region of DSP circuitry blocks or a region of logic fabric circuitry) on the programmable integrated circuitry device may be determined (e.g., randomly). A score related to the performance of the graph (e.g., a score related to data flow graph routing delays or area consumed by the data flow graph) may be determined and this process may be repeated after one of the arithmetic operators of the data flow graph is moved. The placement of arithmetic operators that corresponds to the best value for the score related to the performance of the data flow graph may be stored. Accordingly, more arithmetic operators may be included on a programmable integrated device than in conventional devices. Full Article
pera Superconducting rotating electrical machine and manufacturing method for high temperature superconducting film thereof By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST The present disclosure relates to a superconducting rotating electrical machine and a manufacturing method for a high temperature superconducting film thereof. The superconducting rotating electrical machine includes a stator, and a rotor rotatable with respect to the stator, the rotor having a rotary shaft and a rotor winding. Here, the rotor winding includes tubes disposed on a circumference of the rotary shaft and each forming a passage for a cooling fluid therein, superconducting wires accommodated within the tubes, and a cooling fluid flowing through the inside of the tubes. This configuration may allow for direct heat exchange between the superconducting wires and a refrigerant, resulting in improvement of heat exchange efficiencies of the superconducting wires. Full Article
pera Persistent-mode high-temperature superconducting shim coils to enhance spatial magnetic field homogeneity for superconducting magnets By www.freepatentsonline.com Published On :: Tue, 24 Feb 2015 08:00:00 EST A persistent-mode High Temperature Superconductor (HTS) shim coil is provided having at least one rectangular shaped thin sheet of HTS, wherein the thin sheet of HTS contains a first long portion, a second long portion parallel to first long portion, a first end, and a second end parallel to the first end. The rectangular shaped thin sheet of high-temperature superconductor has a hollow center and forms a continuous loop. In addition, the first end and the second end are folded toward each other forming two rings, and the thin sheet of high-temperature superconductor has a radial build that is less than 5 millimeters (mm) and able to withstand very strong magnetic field ranges of greater than approximately 12 Tesla (T) within a center-portion of a superconducting magnet of a superconducting magnet assembly. Full Article
pera High temperature superconducting tape conductor having high critical ampacity By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT The invention relates to a high temperature superconducting tape conductor having a flexible metal substrate that comprises at least one intermediate layer disposed on the flexible metal substrate and comprising terraces on the side opposite the flexible metal substrate, wherein a mean width of the terraces is less than 1 μm and a mean height of the terraces is more than 20 nm, and that comprises at least one high temperature superconducting layer disposed on the intermediate layer, which is disposed on the at least one intermediate layer and comprises a layer thickness of more than 3 μm. The ampacity of the high temperature superconducting tape conductor relative to the conductor width is more than 600 A/cm at 77 K. Full Article
pera Methods of splicing 2G rebco high temperature superconductors using partial micro-melting diffusion pressurized splicing by direct face-to-face contact of high temperature superconducting layers and recovering superconductivity by oxygenation annealing By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT Disclosed is a splicing method of two second-generation ReBCO high temperature superconductor coated conductors (2G ReBCO HTS CCs), in which, with stabilizing layers removed from the two strands of 2G ReBCO HTS CCs through chemical wet etching or plasma dry etching, surfaces of the two high temperature superconducting layers are brought into direct contact with each other and heated in a splicing furnace in a vacuum for micro-melting portions of the surfaces of the high temperature superconducting layers to permit inter-diffusion of ReBCO atoms such that the surfaces of the two superconducting layers can be spliced to each other and oxygenation annealing for recovery of superconductivity which was lost during splicing. Full Article
pera Energy storage device and operating method By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT In order to store excess kinetic energy, an energy storage device and an operating method are described, in which the kinetic energy can be partially converted into electrical energy by a first electric machine using at least two electric machines arranged on a shaft and can be partially converted into additional kinetic energy, such as rotational energy, by a second electric machine. The method for energy storage of excess kinetic energy provides for converting kinetic energy partially into electric energy and partially into additional kinetic energy, such as rotational energy. Full Article
pera Systems, methods, and apparatus for calibrating, controlling, and operating a quantum processor By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT Quantum annealing may include applying and gradually removing disorder terms to qubits of a quantum processor, for example superconducting flux qubits of a superconducting quantum processor. A problem Hamiltonian may be established by applying control signals to the qubits, an evolution Hamiltonian established by applying disorder terms, and annealing by gradually removing the disorder terms. Change in persistent current in the qubits may be compensated. Multipliers may mediate coupling between various qubits and a global signal line, for example by applying respective scaling factors. Two global signal lines may be arranged in an interdigitated pattern to couple to respective qubits of a communicatively coupled pair of qubits. Pairs of qubits may be communicatively isolated and used to measure a response of one another to defined signals. Full Article
pera Using a physical phenomenon detector to control operation of a speech recognition engine By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A device may include a physical phenomenon detector. The physical phenomenon detector may detect a physical phenomenon related to the device. In response to detecting the physical phenomenon, the device may record audio data that includes speech. The speech may be transcribed with a speech recognition engine. The speech recognition engine may be included in the device, or may be included with a remote computing device with which the device may communicate. Full Article
pera Systems and methods for operating a flash memory file system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A flash memory file system including a plurality of flash modules. Each of the plurality of flash modules includes a respective cache memory, a respective flash memory, and a respective flash controller in communication with the respective cache memory and the respective flash memory. A first flash module of the plurality of flash modules is configured to receive a file lookup message including a path name for file data stored on a second flash module of the plurality of flash modules. A third flash module of the plurality of flash modules is configured to select the second flash module based on the path name and a directory table, and generate a file metadata message responsive to the file lookup message. The file metadata message identifies the second flash module as containing the file data. Full Article
pera System and method for determining a level of success of operations on an abstraction of multiple logical data storage containers By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Various systems and methods are described for configuring a logical data storage container. In one embodiment, an instruction to perform an operation to modify an attribute of the logical data storage container that is an abstraction of a plurality of pertinent storage containers is received. A translated instruction to perform a sub-operation associated with the operation is transmitted to each of a number of the plurality of pertinent storage containers. A level of success of the performing of the operation on the logical data storage container is detected based on a comparison of a threshold value to a level of success of the performing of the sub-operation on each of the number of the plurality of pertinent storage containers. A report of the detected level of success is communicated. Full Article
pera α-keto alkylperacids and methods for producing and using the same By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present invention provides α-keto alkylperacids and methods for producing and using the same. In particular, α-keto alkylperacids are useful as antimicrobial agents. Full Article
pera Ozonolysis operations for generation of reduced and/or oxidized product streams By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention relates to methods for safe and efficient use of hydrogen and oxygen in ozonolysis operations. The invention also relates to an ozonolysis process involving elements of both reductive and oxidative ozonolysis which are integrated in a continuous process. In one embodiment, the ozonolysis process of the present invention uses hydrogen and/or oxygen generated from water and electricity, which may be recycled to generate water and/or electricity. Full Article
pera Methods and apparatuses for controlling the temperature of a data processing system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Methods and apparatuses to manage working states of a data processing system. At least one embodiment of the present invention includes a data processing system with one or more sensors (e.g., physical sensors such as tachometer and thermistors, and logical sensors such as CPU load) for fine grain control of one or more components (e.g., processor, fan, hard drive, optical drive) of the system for working conditions that balance various goals (e.g., user preferences, performance, power consumption, thermal constraints, acoustic noise). In one example, the clock frequency and core voltage for a processor are actively managed to balance performance and power consumption (heat generation) without a significant latency. In one example, the speed of a cooling fan is actively managed to balance cooling effort and noise (and/or power consumption). Full Article
pera Multi-cluster processing system and method of operating the same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A multi-cluster processing system and a method of operating a multi-cluster processing system are provided. The multi-cluster processing system includes: a first cluster including a plurality of first-type cores: a second cluster including a plurality of second-type cores; and a control unit configured to monitor loads of the first-type cores and the second-type cores, wherein when utilization of at least one of enabled first-type cores exceeds a predetermined threshold utilization of each of the first-type cores, the control unit enables at least one of disabled first-type cores in a first mode, and the control unit enables at least one of the disabled second-type cores and disables the first cluster in a second mode, wherein an amount of computation per unit of time of each of the second-type cores is greater than an amount of computation per unit of time of each of the first-type cores. Full Article
pera Method for operating invisible system services on android platform By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for operating an invisible system service on Android platform is disclosed. The method for operating system services on Android platform includes selectively registering a created system service in a context manager according to a type of the created system service, where the type of the system service comprises a first type for permitting access from an outside and a second type for not permitting access from the outside, and the selectively registering comprises registering in the context manager the created system service belonging to the first type and not registering in the context manager the created system service belonging to the second type. Full Article
pera 3D ultrasound system for intuitive displaying to check abnormality of object and method for operating 3D ultrasound system By www.freepatentsonline.com Published On :: Tue, 02 Jun 2015 08:00:00 EDT Provided are a three-dimensional (3D) ultrasound system and a method for operating the 3D ultrasound system, which are capable of intuitively displaying the abnormality of an object by determining a grade by comparing measurement data obtained by measuring ultrasound data relating to the object and displaying the measurement data in a different way based on the determined grade. Full Article
pera Systems and methods for analyzing building operations sensor data By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Systems and methods are disclosed for analyzing building sensor information and decomposing the information therein to a more manageable and more useful form. Certain embodiments integrate energy-based and spectral-based analysis methods with parameter sampling and uncertainty/sensitivity analysis to achieve a more comprehensive perspective of building behavior. The results of this analysis may be presented to a user via a plurality of visualizations and/or used to automatically adjust certain building operations. In certain embodiments, advanced spectral techniques, including Koopman-based operations, are employed to discern features from the collected building sensor data. Full Article
pera Method and system for signal generation via a temperature sensing crystal integrated circuit By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Disclosed are various embodiments involving correction of signals generated by a crystal oscillator. An age of an integrated circuit or a time of use of the integrated circuit may be determined. A signal generated from a crystal of the integrated circuit may be modified based at least in part on the determined age of the integrated circuit or the determined time of use of the integrated circuit. Full Article
pera Operating method of sensor node, operating method of data sink in sensor network, and sensor network By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided is an operating method of a sensor node. The operating method of a sensor node includes receiving a sensing request, adjusting a sensing condition on the basis of the received sensing request, and sensing according to the adjusted sensing condition. Full Article
pera Automated emergency power supply test using engine exhaust temperature By www.freepatentsonline.com Published On :: Tue, 11 Aug 2015 08:00:00 EDT An automated emergency power supply system (EPSS) and testing solution that records generator load values and engine exhaust temperature values to evaluate whether an EPSS test satisfies legislated test criteria. The EPSS test is carried out under software control, which initiates a test by instructing an automatic transfer switch (ATS) to change its status to a test status, causing the essential loads to be powered by a generator instead of a main utility power source. Power monitors record the ATS and generator status during the test as well as electrical parameter data from the ATS and generator and exhaust temperature data and other engine parameter data from the generator. When the test is concluded, the ATS is instructed to return the status to normal so that power delivery is resumed from the main power source. The electrical and engine parameter data is analyzed and compared against legislated test criteria to determine a pass/fail result of the EPSS test. Full Article
pera Multi-unit blood processor with temperature sensing By www.freepatentsonline.com Published On :: Tue, 23 Sep 2014 08:00:00 EDT Method and apparatus for centrifugal blood component separation including temperature sensing in each of a plurality of separation cells. The temperature of unit of bloods over time is recorded. If the temperature of any of the units exceeds a pre-determined maximum, portions of the blood separation device may be cooled. A controller may determine which of the units to process first, generally proceeding from the warmest unit to the coolest. The order of unit processing may be changed during processing. The detected temperature may be used to calibrate a pressure sensor used to predict the volume of a component separated from a composite fluid by predicting the volume of the composite fluid from sensed pressure and predicting the volume of other separated components from sensed movement of the other components to collection bags. Full Article
pera Method for optimizing the operation of a hydrocarbon synthesis unit starting from synthesis gas, by controlling the partial pressure of CO By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST A method is described for optimizing the operation of a reaction section for the synthesis of hydrocarbons from a feed comprising synthesis gas, operated in the presence of a catalyst comprising cobalt, said method comprising the following steps: a) determining the theoretical partial pressure of CO in the reaction section;b) optionally, adjusting the partial pressure of CO determined in step a) to a value of 4 bar or higher;c) determining a new value for the theoretical partial pressure of CO in the reaction section. Full Article
pera Method and apparatus for simulating operation in a data processing system By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Methods and systems are provided for executing a simulation of an operation in a data processing system. In one implementation, the method includes executing an operation under a first set of conditions, determining a characteristic associated with the execution of the operation under the first set of conditions, and executing a simulation of the operation under a second set of conditions different from the first set of conditions. The simulation of the operation is constrained by the determined characteristic. The method can further include determining a cost/benefit of executing the operation under a set of conditions different from the first set of conditions based at least in part on the simulation. Full Article
pera Macro model of operational amplifier and circuit design simulator using the same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention aims to simulate a response more similar to a actual machine while inhibiting load increase in analog operation. Program configuration of the present invention is a component of a simulation program for circuit design, which is executed by a computer. The computer includes an operation portion, a storage portion, a manipulation portion, and a display portion, so that the computer exerts a function of a circuit design simulator, and as a macro model of an operational amplifier for use in the circuit design simulator, enabling the computer to act by simulating a response of the operational amplifier on the circuit design simulator. The macro model of the operational amplifier includes a control portion (LMT1) for generating output exception in the event of input exception or power supply exception of the operational amplifier. Full Article
pera Low temperature silicon carbide deposition process By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Methods for formation of silicon carbide on substrate are provided. Atomic layer deposition methods of forming silicon carbide are described in which a first reactant gas of the formula SinHaXb wherein n=1-5, a+b=2n+2, a>0, and X=F, Cl, Br, I; and a second reactant gas of the formula MR3-bYb, wherein R is a hydrocarbon containing substituent, Y is a halide, hydride or other ligand and b=1-3 are sequentially deposited on a substrate and then exposed to a plasma. The process can be repeated multiple times to deposit a plurality of silicon carbide layers. Full Article
pera Ultrasound operation apparatus, cavitation control method, and ultrasound transducer control method By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An ultrasound operation apparatus comprises: an ultrasound transducer; a driving section that drives the ultrasound transducer by a drive signal; a probe having a proximal end section provided with the ultrasound transducer and a distal end section to which ultrasound oscillation is transmitted, the probe performing a treatment on a living tissue using ultrasound oscillation at the distal end section; a detecting section that detects, from a drive signal, a physical quantity which varies due to cavitation generated by ultrasound oscillation of the distal end section; and an output control section that controls an output of the driving section in accordance with the detected physical quantity. Full Article
pera Systems for spacing and transferring objects between operative stations By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Systems for spacing and transferring objects between operative stations are provided. Such systems can be used with ovens for preforms for plastic material, in blowing or stretch-blowing machines and for other applications in the packaging field. Such systems provide spacing and transferring of objects advancing in procession on transport elements, from a minimum pitch to a preset pitch larger than said minimum pitch, and for transferring said spaced objects to handling elements. Full Article
pera Burner with improved heat recuperator By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A burner and an improved heat recuperator for a burner. The heat recuperator has a tubular body including a plurality of fins extending radially outward from the tubular body. The plurality of fins are disposed in a plurality of segments arranged longitudinally along the tubular body with the plurality of fins in each segment being disposed about a circumference of the tubular body. Adjacent segments of fins being circumferentially offset with one another. Full Article
pera Apparatus for combusting a fuel at high pressure and high temperature, and associated system By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber directs the combustion product longitudinally toward the outlet portion. The transpiration member is configured to substantially uniformly direct a transpiration substance therethrough toward the combustion chamber, such that the transpiration substance is directed to flow helically about the perimeter and longitudinally between the inlet and outlet portions, for buffering interaction between the combustion product and the transpiration member. Associated systems are also provided. Full Article
pera Torch with operating device By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A torch includes a tank adapted to contain a fuel, a firebowl atop the tank defining a fill opening, and an operating device that fits over the firebowl as a snuffer. A closing device may be fitted into the fill opening. The closing device may be movable between a lowered closed position and a raised open position. The closing device defines at least one recess for receiving a portion of an operating device that moves the closing device between the open and closed positions. Full Article
pera Optimization of waveform operation in electronic musical instrument By www.freepatentsonline.com Published On :: Tue, 11 Sep 1990 08:00:00 EDT An electronic musical instrument having a number of keys, having tone generators capable of simultaneous tone production, the tone generators being smaller in number than the number of keys. The instrument forms an operation for synthesizing a desired waveform, the operation for synthesizing a desired waveform being performed in a repeating cyclic order with an operation cycle and in which the waveform is transferred to the tone generators and read out therefrom at a rate in accordance with the note of a key being depressed to obtain a desired musical waveform. The device includes a number-of-depressed keys detecting device which counts the number of keys which are actuating the tone generator upon depression. A cycle altering device is provided for changing the operation cycle, as a whole, on the basis of the number of depressed keys, counted by the number-of-depressed keys detecting device. The construction allows for a waveform of a smooth temporal variation to be produced. Full Article
pera Method and apparatus for efficient zone switch operation in a broadband wireless access system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A wireless access system and, more particularly, a method and apparatus for more efficiently performing zone switch are disclosed. The method of performing zone switch by an advanced mobile station (AMS) in a mixed-mode advanced base station (ABS) which operates in a mixed mode of a broadband wireless access system includes receiving a ranging response (RNG-RSP) message including system information of an AMS support zone from a legacy zone (LZone) of the ABS, and performing ranging to the AMS support zone using the system information. Full Article
pera Apparatus and method for operating multiple beamforming transceiver in wireless communication system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A method for operating a base station in a wireless communication system in order to support a plurality of characteristics is provided. The method includes allocating resource periods for respective characteristics, transmitting system information including information on the characteristics, transmitting a reference signal with the characteristic corresponding to the relevant resource period through at least one of the resource periods, and receiving feedback information determining channel qualities for all of the characteristics. Full Article
pera Secondary assembly drive of an internal combustion engine and method for operating same By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A secondary assembly drive of an internal combustion engine and a method for operating same are provided. The secondary assembly drive includes: a first drive wheel (1) which can be rotatably connected to a crank shaft (CR) of the internal combustion engine, an electric machine which can be operated either as a generator (AL) of as a motor (M) and a second drive wheel (2) which can be rotatably connected to the electric machine (AL, M), an air-conditioning compressor (A/C) and a third drive wheel (3) which can be rotatably connected to the air-conditioning compressor, a traction element (4) which rotates infinitely and which wraps around the drive wheels, and an actuable clutch (7) for disconnecting the drive of the electric machine and of the air-conditioning compressor from the crankshaft when necessary. In addition, the air-conditioning compressor is designed for operation in both rotational directions, and a reversal of the rotational direction between the generator operating mode and the motor operating mode of the electric machine is provided. Full Article
pera Secondary assembly drive of an internal combustion engine and method for operating same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A secondary assembly drive of an internal combustion engine and a method for operating same are provided. The secondary assembly drive includes, in two drive planes, an assembly drive (2) and a starter drive (12) and permits, in addition to a normal operating mode, the following operating modes: —starting of the internal combustion engine, —boosting of the internal combustion engine, —air-conditioning, and —deactivation of the assembly drive (2). Full Article
pera Apparatus for mixing and controlling the temperature of laboratory vessel contents By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The present invention relates to an apparatus for mixing and controlling the temperature of laboratory vessel contents with an accommodating device in detachable connection with an exchangeable block for accommodating and controlling the temperature of laboratory vessels and with a drive by which the accommodating device can be set in a mixing motion, and with a temperature control device with a heat source or sink in heat-conducting connection with the exchangeable block at least through in each case at least one adjoining contact face firstly on the accommodating device and secondly on the exchangeable block, which is characterized in that the detachable connection is maintained by a spring element which, by virtue of its spring force, horizontally clamps together a first undercut between the accommodating device and the exchangeable block in at least one first direction. Full Article
pera Fluid agitation apparatus for reducing temperature fluctuation and thermostatic apparatus By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT Provided are a fluid agitation apparatus using a structure which is simple in shape and short in a fluid passage direction without a movable part so as to produce a sufficient effect from the viewpoint of reducing temperature fluctuation, and a thermostatic apparatus using the fluid agitation apparatus. The fluid agitation apparatus is installed in a fluid passage and includes, in an order from an upstream side thereof: a dividing part for dividing a flow of a fluid into a plurality of flows; a circumvolving part for circumvolving the fluid about an axis in a flow direction of the fluid; and an accelerating part for increasing a flow rate of the fluid. Full Article
pera Low temperature performance lubricating oil detergents and method of making the same By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one normal alpha olefin having from about 12 to about 30 carbon atoms per molecule that has been isomerized to obtain an isomerized alpha olefin having 15-98 wt % branching and a residual alpha olefin content of between from about 0.1 to about 30 wt %, thereby producing an alkylated hydroxyaromatic compound; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid. Full Article
pera Redundancy and interoperability in multi-channel optoelectronic devices By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A multi-channel optoelectronic device is configured to establish a redundant status link with a remote device. The optoelectronic device can transmit N transmit optical signals to the remote device over a plurality of transmit channels and receive N receive optical signals from the remote device over a plurality of receive channels. The optoelectronic device includes one or more spare transmit and receive channels. When used with a remote device having spare transmit and receive channels, each device can establish a status link with the other and use the status link to switch out transmit and/or receive channels to identify and permanently switch out the worst transmit and/or receive channels. Alternately, the device can interoperate with a non-status-link enabled remote device by determining that the remote device is not status-link enabled, transitioning to a low transmit power mode, and transmitting and receiving over a plurality of default transmit and receive channels. Full Article
pera Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor By www.freepatentsonline.com Published On :: Tue, 17 Feb 2015 08:00:00 EST Milling cutter and method of operating same, and other machine tools, and an adjustment mechanism therefor. A cutting insert is adjusted by moving a resilient web with an adjusting screw. Full Article
pera MEMS sensors with closed nodal anchors for operation in an in-plane contour mode By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A MEMS sensor includes at least one closed nodal anchor along a predetermined closed nodal path on at least one surface of a resonant mass. The resonant mass may be configured to resonate substantially in an in-plane contour mode. Drive and/or sense electrodes may be disposed within a cavity formed at least in part by the resonant mass, the closed nodal anchor, and a substrate. Full Article
pera Microtiter plate temperature control By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention provides methods and apparatus for efficiently providing accurate temperature control of a microtiter cold plate and precise alignment of the microtiter cold plate with a microtiter plate. Full Article
pera Three-dimensional coordinate scanner and method of operation By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A noncontact optical three-dimensional measuring device that includes a projector, a first camera, and a second camera; a processor electrically coupled to the projector, the first camera and the second camera; and computer readable media which, when executed by the processor, causes the first digital signal to be collected at a first time and the second digital signal to be collected at a second time different than the first time and determines three-dimensional coordinates of a first point on the surface based at least in part on the first digital signal and the first distance and determines three-dimensional coordinates of a second point on the surface based at least in part on the second digital signal and the second distance. Full Article
pera Heater to keep reader head in stable temperature range By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT Technologies are described herein for utilizing a head heater to test temperature stability of a head of a storage device and to prevent the head from operating in an unstable temperature condition. A first power level may be applied to a head heater of a head in a storage device, the first power level configured to simulate a temperature condition in the head. An instability of the head is determined and the temperature condition and the instability of the head are recorded in a memory. The process may be repeated to develop a range of temperature conditions in which the head exhibits instability. The range of temperature conditions and the head heater may then be utilized to prevent the head from operating in an unstable temperature condition during normal operation. Full Article
pera Data storage device adjusting laser input power to compensate for temperature variations By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A data storage device is disclosed comprising a head actuated over a disk, wherein the head comprises a laser configured to heat the disk while writing data to the disk. A temperature is measured, and a first input power is generated based on a first function of the measured temperature, wherein the first function compensates for a temperature dependent output power of the laser. A second input power is generated based on a second function of the measured temperature, wherein the second function compensates for a temperature dependent coercivity of the disk. The first input power is combined with the second input power to generate a write power applied to the laser while writing data to the disk. Full Article
pera Sensing temperature at a slider protrusion region By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An apparatus includes a near-field transducer at or near an air bearing surface of the apparatus. A write pole is disposed at or near the air bearing surface and proximate the near-field transducer, respectively. A thermal sensor is disposed at the air bearing surface and within a protrusion region of the air bearing surface defined relative to at least one of the near-field transducer and the write pole. The thermal sensor is configured to produce a signal indicative of a temperature at the protrusion region. Full Article
pera Multi-purpose near-field transducer having a temperature coefficient of resistance By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An apparatus includes a writer, an arrangement comprising a plasmonic near-field transducer (NFT) adjacent the writer and comprising a material having a temperature coefficient of resistance (TCR), and a lead arrangement connected to the NFT arrangement. In some configurations, the NFT arrangement includes a heat sink, and the lead arrangement is connected to the heat sink. In other configurations, the lead arrangement is connected directly to the NFT. Full Article
pera Method for making biodegradable superabsorbent particles By www.freepatentsonline.com Published On :: Tue, 04 Feb 2014 08:00:00 EST A method for making particles containing carboxyalkyl cellulose, comprising blending a carboxyalkyl cellulose and a starch in water to provide an aqueous gel; treating the aqueous gel with a crosslinking agent to provide a crosslinked gel; drying the crosslinked gel to provide a solid; comminuting the solid to provide a plurality of particles. Full Article