ive Drive system having ongoing pull-slip learning By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A drive system for a mobile machine is disclosed. The drive system may have a travel speed sensor, at least one traction device speed sensor, and a controller in communication with the travel speed sensor and the at least one traction device speed sensor. The controller may be configured to determine a slip value associated with a traction device of the mobile machine based on signals generated by the travel speed sensor and the at least one traction device speed sensor, and determine a torque output value of the mobile machine. The control may also be configured to make a comparison of the slip value and the torque output value with a pull-slip curve stored in memory, and selectively update the pull-slip curve based on the comparison. Full Article
ive Transistors having features which preclude straight-line lateral conductive paths from a channel region to a source/drain region By www.freepatentsonline.com Published On :: Tue, 27 Oct 2015 08:00:00 EDT Some embodiments include transistors having a channel region under a gate, having a source/drain region laterally spaced from the channel region by an active region, and having one or more dielectric features extending through the active region in a configuration which precludes any straight-line lateral conductive path from the channel region to the source/drain region. The dielectric features may be spaced-apart islands in some configurations. The dielectric features may be multi-branched interlocking structures in some configurations. Full Article
ive Select devices including a semiconductive stack having a semiconductive material By www.freepatentsonline.com Published On :: Tue, 24 Nov 2015 08:00:00 EST Methods, devices, and systems are provided for a select device that can include a semiconductive stack of at least one semiconductive material formed on a first electrode, where the semiconductive stack can have a thickness of about 700 angstroms (Å) or less. Each of the at least one semiconductive material can have an associated band gap of about 4 electron volts (eV) or less and a second electrode can be formed on the semiconductive stack. Full Article
ive Driver circuit and semiconductor device By www.freepatentsonline.com Published On :: Tue, 01 Dec 2015 08:00:00 EST The silicon nitride layer 910 formed by plasma CVD using a gas containing a hydrogen compound such as silane (SiH4) and ammonia (NH3) is provided on and in direct contact with the oxide semiconductor layer 905 used for the resistor 354, and the silicon nitride layer 910 is provided over the oxide semiconductor layer 906 used for the thin film transistor 355 with the silicon oxide layer 909 serving as a barrier layer interposed therebetween. Therefore, a higher concentration of hydrogen is introduced into the oxide semiconductor layer 905 than into the oxide semiconductor layer 906. As a result, the resistance of the oxide semiconductor layer 905 used for the resistor 354 is made lower than that of the oxide semiconductor layer 906 used for the thin film transistor 355. Full Article
ive Progressive load limiter By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A retractor includes a spool configured to selectively wind and unwind the webbing, a lock base configured to operate in a free position and a locked position, a first energy absorbing member coupled to the spool and the lock base, and a second energy absorbing member coupled to the spool and the lock base. When the lock base is in the free position, the spool and lock base freely rotate together when a force is applied on the spool through the webbing. When the lock base is in the locked position and a force is applied on the spool through the webbing, rotation of the spool is permitted while rotation of the lock base is prevented, such that the first energy absorbing member absorbs a first energy and the second energy absorbing member is configured to absorb a second energy after a predetermined rotation of the spool. Full Article
ive Driver seat airbag system By www.freepatentsonline.com Published On :: Tue, 26 Apr 2016 08:00:00 EDT A driver seat airbag system includes: an airbag that is housed in a pad section of a steering wheel, receives a supply of gas for inflation during a collision of a vehicle, and is inflated and deployed between the steering wheel and an occupant in a driver seat; and an inflator that generates the gas. The airbag includes an auxiliary inflated section that is inflated to a front of the vehicle in conjunction with inflation and deployment of the airbag, so as to enter a space between a rim and a spoke of the steering wheel. Full Article
ive Active compensation for mud telemetry modulator and turbine By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT An arrangement having a piston configured to move along an axial pathway a rotating seal configured to seal an inside environment from an outside environment, the rotating seal configured to be acted upon by a pressure exerted from the piston, a differential pressure sensor measuring a pressure difference between a first fluid from the outside environment and a second fluid on the inside environment, a motor connected to the piston, the motor configured to actuate the piston to a position along an axial pathway and an electronic feedback control system connected to the motor, the electronic feedback system configured to interface with the differential pressure sensor and maintain a pressure generated by the piston onto the rotating seal to a desired pressure. Full Article
ive Universal drilling and completion system By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Methods and apparatus are described to drill and complete wellbores. Such wellbores include extended reach horizontal wellbores, for example in shales, deep subsea extended reach wellbores, and multilateral wellbores. Specifically, the invention provides simple threaded subassemblies that are added to existing threaded tubular drilling and completion equipment which are used to dramatically increase the lateral reach using that existing on-site equipment. These subassemblies extract power from downward flowing clean mud, or other fluids, in an annulus to provide additional force or torque on tubular elements within the wellbore, while maintaining circulation, to extend the lateral reach of the drilling equipment and completion equipment. These added elements include combinations of The Leaky Seal™, a Cross-Over, The Force Sub™ and The Torque Sub™. The use of such additional simple elements allow lighter drilling equipment to be used to reach a given lateral distance, therefore reducing drilling costs. Full Article
ive Spacer fluid additive By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A spacer fluid comprises a fluid and a viscosity agent. The viscosity agent is a mixture of at least two polyvinylalcohol compositions. A first polyvinylalcohol composition comprises polyvinylalcohols having a first degree of hydrolysis and a second polyvinylalcohol composition comprises polyvinylalcohols having a second degree of hydrolysis. The first and second degrees of hydrolysis are substantially different such that the rheology of the spacer fluid is stable during temperatures changes. Full Article
ive Cassette for containing accumulative fluorescent sheet By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT There is provided a cassette having: a flexible accommodating body that accommodates an accumulative fluorescent sheet in a light shielded state; an entrance/exit portion that is provided at one end portion of the flexible accommodating body, and through which the accumulative fluorescent sheet can be inserted and removed into and from the flexible accommodating body due to mounting to a radiographic image reading device; and opening/closing means for opening the flexible accommodating body such that a push-out member, that pushes the accumulative fluorescent sheet out toward the entrance/exit portion, can be inserted, or closing the flexible accommodating body in a light shielded state. Full Article
ive Method of mechanically controlling the amount of energy to reach a patient undergoing intraoperative electron radiation therapy By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Apparatus for performing electron radiation therapy on a breast cancer patient preferably includes an intraoperative electron radiation therapy machine, an intraoperative electron radiation therapy collimator tube connected to the intraoperative electron radiation therapy machine, and a plurality of filters made of a material having substantially the same density as human breast tissue for placement between the machine and the patient to change the energy of a monoenergetic beam after the beam has left the machine, allowing a filter to be chosen to reduce the energy traveling through the tube to a desired amount of energy to treat the patient. A method of controlling the amount of energy to reach a breast cancer patient undergoing electron radiation therapy includes selecting a filter made of a material having substantially the same density as human tissue and placing the filter between an intraoperative electron radiation therapy machine and a breast cancer patient to change the energy of a monoenergetic beam after it has left the machine, the filter being chosen to reduce the energy traveling from the machine to a desired amount of energy to treat the patient. Full Article
ive Thermal-conduction element for improving the manufacture of a package for transporting and/or storing radioactive materials By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The invention relates to a thermal conduction element (20) for a package for transporting and/or storing radioactive materials, comprising: an internal part (30) intended to be in contact with a lateral body (14) of the package;an external part (34) intended to form a portion of an external envelope (24) of said package, holding radiological protection means (22);an intermediate part (32) arranged between the internal and external parts,the internal, external and intermediate parts being produced from copper and one of the alloys thereof. According to the invention, the external part (34) is equipped, at each of its two opposite ends, with an area (36) for connection by welding to another thermal conduction element (20), each connection area (36) being produced from steel. Full Article
ive Thermally activated magnetic and resistive aging By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Examples of the present invention include apparatus and methods for monitoring aging of an item. A solid-state structure is located within, adjacent to, or otherwise proximate the item, the solid-state structure including nanostructures. The electrical resistance and/or magnetization of the solid-state structure is determined to determine the degree of aging of the item. In representative examples, the solid-state structure includes nanostructures of a metal, such as a ferromagnetic metal, within a non-magnetic matrix, such as a semimetal, semiconductor, or insulator. Full Article
ive Image capture based on scanning resolution setting compared to determined scanning resolution relative to target distance in barcode reading By www.freepatentsonline.com Published On :: Tue, 06 Oct 2015 08:00:00 EDT An arrangement for, and a method of, electro-optically reading a target by image capture, employ an aiming assembly for projecting an aiming light pattern on the target that is located within a range of working distances relative to a housing, an imaging assembly for capturing an image of the target and of the aiming light pattern over a field of view, and a controller for determining a distance of the target relative to the housing based on a position of the aiming light pattern in the captured image, for determining a scanning resolution based on the determined distance, for comparing the determined scanning resolution with a scanning resolution setting, and for processing the captured image based on the comparison. Full Article
ive Low sulfur coal additive for improved furnace operation By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST The present invention is directed to additives for coal-fired furnaces, particularly furnaces using a layer of slag to capture coal particles for combustion. The additive(s) include iron, mineralizer(s), handling aid(s), flow aid(s), and/or abrasive material(s). The iron and mineralizers can lower the melting temperature of ash in low-iron, high alkali coals, leading to improved furnace performance. Full Article
ive Tellurium inorganic reaction systems for conductive thick film paste for solar cell contacts By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT This disclosure relates to electroconductive paste formulations useful in solar panel technology. In one aspect, the disclosure relates to an inorganic reaction system for use in electroconductive paste compositions, wherein the inorganic reaction system comprises a lead containing matrix composition and a tellurium containing matrix composition. In another aspect, the disclosure relates to an electroconductive paste composition comprising a conductive metal component, an inorganic reaction system and an organic vehicle. Another aspect of the disclosure relates to a solar cell produced by applying an electroconductive paste composition of the invention to a silicon wafer. Yet another aspect relates to a solar cell module assembled using solar cells produced by applying an electroconductive paste composition to a silicon wafer, wherein the electroconductive paste composition comprises an conductive metal component, an inorganic reaction system and an organic vehicle. Full Article
ive Photovoltaic cell containing novel photoactive polymer By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Novel photoactive polymers, as well as related photovoltaic cells, articles, systems, and methods, are disclosed. Full Article
ive Photoelectric conversion material containing fullerene derivative By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention provides a photoelectric conversion material comprising a fullerene derivative represented by the formula C60(R1)5(R2), wherein each R1 independently represents an organic group having a substituent; and R2 represents a hydrogen atom or a substituted or unsubstituted C1-C30 hydrocarbon group. Further, the present invention also provides a photoelectric conversion device having a self-assembled monomolecular film of the photoelectric conversion material, and a solar cell having the photoelectric conversion device. Full Article
ive Conductive paste and electronic device, and solar cell including an electrode formed using the conductive paste By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A conductive paste may include a conductive component and an organic vehicle. The conductive component may include an amorphous metal. The amorphous metal may have a lower resistivity after a crystallization process than before the crystallization process, and at least one of a weight gain of about 4 mg/cm2 or less and a thickness increase of about 30 μm or less after being heated in a process furnace at a firing temperature. Full Article
ive Conductive paste and electronic device and solar cell including an electrode formed using the conductive paste By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT According to example embodiments, a conductive paste includes a conductive component that contains a conductive powder and a titanium (Ti)-based metallic glass. The titanium-based metallic glass has a supercooled liquid region of about 5K or more, a resistivity after crystallization that is less than a resistivity before crystallization by about 50% or more, and a weight increase by about 0.5 mg/cm2 or less after being heated in a process furnace at a firing temperature. According to example embodiments, an electronic device and a solar cell may include at least one electrode formed using the conductive paste according to example embodiments. Full Article
ive Anti-reflective coating for photovoltaic cells By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A surface of a photovoltaic cell is coated with a solution that includes barium titanate to reduce reflection of sunlight that is incident on the surface. The solution may include a base of polydimethylsiloxane and carbon nanotubes. The process may be used in the fabrication of new photovoltaic cell assemblies, or to retrofit existing assemblies in situ. Full Article
ive Capacitive touch panels By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A novel method and apparatus for performing the method is disclosed the apparatus comprises a laser (17), at least one ink jet print head (14), means for holding a transparent substrate having a transparent conductive layer, means (22) for adjusting the relative positions of the laser and at least one ink jet print head to the transparent conducting layer (2) and a controller to control the laser and ink jet print head whereby in a first step to inkjet print one or more coarse metal borders (15) onto the deposited TCM layer and in a second step by means of a single laser ablation process, ablating tracks in both the metal border and underlying TCM layer to form a plurality of discrete electrical busbars (12) and optionally also to form electrodes in the remainder of the TCM layer. Full Article
ive Controlling drive settings in a press By www.freepatentsonline.com Published On :: Tue, 30 Sep 2014 08:00:00 EDT In one embodiment, a method for controlling drive settings in a press for printing on a web of media. A drive is provided to receive the web from an upstream location and to transport the received web downstream of the drive at a controllable speed. The speed of the drive is sampled plural times while operating the drive in a tension control mode that varies the speed to maintain a desired tension in the web adjacent the drive. An optimal speed of the drive is calculated from the sampled speeds. The drive is operated in a constant velocity mode at the optimal speed during printing. Full Article
ive Media diverter system using bernoulli force rollers By www.freepatentsonline.com Published On :: Tue, 20 Jan 2015 08:00:00 EST A media diverter system for directing a media sheet traveling along an input media path into either a first media path or a second media path. One or more roller assemblies are provided including a media-guiding roller having one or more grooves formed around the exterior surface, and an air source for selectively providing an air flow into one or more of the grooves, the air flow being directed between the media sheet and the exterior surface of the media-guiding roller thereby producing a Bernoulli force to draw the media sheet toward the media-guiding roller. A controller selectively activates the air source in at least one of the roller assemblies while the corresponding media-guiding roller rotates around its roller axis to draw the media sheet toward the exterior surface of the media-guiding roller, thereby directing the media sheet into either the first media path or a second media path. Full Article
ive Signal generator for a transmitter or a receiver, a transmitter and a receiver By www.freepatentsonline.com Published On :: Tue, 18 Nov 2014 08:00:00 EST A signal generator for a transmitter or a receiver for transmitting or receiving RF-signals according to a given communication protocol includes an oscillator and a mismatch compensator. The oscillator is configured to provide a signal generator output signal having a signal generator output frequency and comprises a fine tuning circuit for providing a fine adjustment of the signal generator output frequency based on a fine tuning signal and a coarse tuning circuit for providing a course adjustment of the signal generator output frequency based on a coarse tuning signal. The mismatch compensator is configured to receive the signal generator output signal and compensate a frequency mismatch between a desired signal generator output frequency and the signal generator output frequency generated by the oscillator by providing the fine tuning signal for changing the state of the fine tuning circuit of the oscillator and by providing the coarse tuning signal for changing a state of the coarse tuning circuit of the oscillator. The mismatch compensator provides the coarse tuning signal during a guard period defined in the given communication protocol, during which no RF-signals are transmitted by the transmitter or no RF-signals are to be received by the receiver, such that the state of the coarse tuning circuit is changed within the guard period. Full Article
ive Rail-to-rail comparator, pulse amplitude modulation receiver, and communication system using the same By www.freepatentsonline.com Published On :: Tue, 09 Dec 2014 08:00:00 EST A rail-to-rail comparator including a first comparison unit connected to a first terminal and configured to compare differential input signals to differential reference voltages; a second comparison unit connected to a second terminal and configured to compare the differential input signals to the differential reference voltages; and an output unit configured to be driven in response to a clock signal and to generate a complementary output signal according to comparison results of the first and second comparison units. Full Article
ive Signaling and channel estimation for uplink transmit diversity By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT In a method of transmitting a data stream from a transmitter in a multiple-input-multiple-output (MIMO) wireless communication system, where the transmitter comprises a plurality of transmit antennas, a discrete Fourier transform (DFT) is applied to the data stream to generate a plurality of symbol sequences; symbols of a first symbol sequence from the plurality of symbol sequences are paired with symbols of a second symbol sequence from the plurality of symbol sequences to generate a plurality of symbol pairs, wherein the pairing results in an orphan symbol; a space-time block code (STBC) is applied to the symbol pairs to generate a plurality of sets of STBC symbols, each set of STBC symbols being associated with a corresponding one of the plurality of antennas; a cyclic delay diversity (CDD) operation is applied to the orphan symbol to generate a plurality of CDD symbols, each CDD symbol being associated with a corresponding one of the plurality of antennas; and each one of the antennas transmits the corresponding set of STBC symbols and the corresponding CDD symbol. Full Article
ive Passive arc management system with a flue chamber By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST In an electrical distribution cabinet a mechanism providing quick, reliable, passive arc blast control has a flue chamber surrounding the likely arc site such as an electrical connection point. The flue chamber provides a flue channel which lengthens the arc and attenuates the current and temperature until the arc is extinguished. Preferably, the flue chamber and channel are formed of opposable open-faced polyhedral structures, one fitting inside the other. The mechanism is particularly suited for draw-out circuit breaker connections in a switch gear cabinet. Full Article
ive Driver for switch in gas insulated switchgear and gas insulated switchgear having the same By www.freepatentsonline.com Published On :: Tue, 06 Jan 2015 08:00:00 EST A driver for a switch in a GIS (Gas Insulation Switchgear) includes a motor, a shaft connected with a moving contact of the switch, a gear connected with one terminal of the shaft and configured to transfer power of the motor to cause the shaft to reciprocate the moving contact through the shaft, a cam spline combined with the shaft and spaced apart from the gear, and a micro-switch connected with the cam spline and configured to control an operation of the motor. Full Article
ive Locomotive positive power bus contactor method of assembly By www.freepatentsonline.com Published On :: Tue, 13 Jan 2015 08:00:00 EST A method of manufacturing a power contactor from an existing contactor having a magnetic amplifier that comprises a blowout coil and a ferromagnetic core, and an arc chute for extinguishing an arc generated by opening the existing contactor under a current load is disclosed. The method includes removing a bolt assembly from the existing contactor and at least one side plate from the existing contactor. The method also includes removing the ferromagnetic core from the existing contactor. Full Article
ive Postal mailer for stress-sensitive articles By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Protective mailer capable of being processed by postal processing equipment without causing damage to the article held by the mailer. The pocket holding the article inside the mailer is offset relative to one edge, when folded, by a distance sufficient to prevent damage when the mailer is oriented and processed. The mailer may include a resizing flap that, when unfolded and deployed, changes the dimensions of the mailer so that the mailer is processed by the postal processing equipment as a non-letter or flat mailpiece. Full Article
ive Propofol formulations with non-reactive container closures By www.freepatentsonline.com Published On :: Tue, 07 Jul 2015 08:00:00 EDT A container storing an anesthetic is disclosed. The container is sealed by a closure and stores a liquid anesthetic solution. The anesthetic is from 0.1% to 10% by weight of the liquid anesthetic solution. The container is made of a material that is inert to the anesthetic and the closure is made of siliconized rubber or a metal. A concentration of the anesthetic in a liquid anesthetic solution stored in the container following a predetermined time period is at least 93% of a concentration of the anesthetic in a liquid anesthetic solution before the liquid anesthetic solution is stored in the container. Full Article
ive Booklet with ultra removable adhesive label By www.freepatentsonline.com Published On :: Tue, 31 Dec 2013 08:00:00 EST An ultra removable booklet with label for application to media is described. The booklet with label includes a release liner, an ultra removable adhesive layer, a paper stock layer, a booklet, an adhesive layer, and a clear plastic cover layer. The clear plastic cover layer has the adhesive layer applied to a bottom surface thereof and the bottom surface is positioned over the booklet. The booklet is positioned over the paper stock. The ultra removable adhesive layer is attached to the lower surface of the paper stock. The release liner is applied to the ultra removable adhesive layer. A process for forming an ultra removable booklet with label for application to media is also described. Full Article
ive Recessed adhesive binding systems By www.freepatentsonline.com Published On :: Tue, 11 Nov 2014 08:00:00 EST Recessed adhesive binding systems. One system can include a plurality of sheets arranged in a stack, each of the plurality of sheets having a front surface, a rear surface, and an exposed edge. At least one of the front surface and the rear surface of each of the plurality sheets can include at least one recessed adhesive positioned adjacent the exposed edge to form an at least partially exposed recessed adhesive, which can be selectively activated. The rear surface of a first sheet in the plurality of sheets can be positioned adjacent the front surface of a second sheet in the plurality of sheets, or vice versa, and the exposed edges of the plurality of sheets can be staggered, such that the exposed edge of the second sheet extends further outwardly from the stack than the exposed edge of the first sheet in the stack. Full Article
ive Dynamic cancellation of passive intermodulation interference By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT A wireless communication node (10) dynamically estimates passive intermodulation (PIM) interference coupled into the node's receive path from the transmission of a composite signal through the node's transmit path. The node (10) then cancels the estimated PIM interference in the receive path. In some embodiments, the node dynamically estimates the PIM interference as a function of the composite signal that models PIM interference generation and coupling in the node (10) according to one or more coefficients (30). The coefficients (30) may be determined by transmitting a test signal (34) during a test stage, when the node (10) is not scheduled to receive any signal. Later, when the composite signal (18) is transmitted, the node (10) uses the coefficients (10) to dynamically estimate and cancel the resulting PIM interference. Full Article
ive Differential circuit compensated with self-heating effect of active device By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT A differential circuit with a function to compensate unevenness observed in the differential gain thereof is disclosed. The differential circuit provides a low-pass filter in one of the paired transistors not receiving the input signal in addition to another low-pass filter that provides an average of output signals as a reference level of the differential circuit. The cut-off frequency of the filter is preferably set to be equal to the transition frequency at which the self-heating effect explicitly influences the trans-conductance of the transistor. Full Article
ive Input receiver circuit having single-to-differential amplifier, and semiconductor device including the same By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT An input receiver circuit including a single-to-differential amplifier and a semiconductor device including the input receiver circuit are disclosed. The input receiver circuit includes a first stage amplifier unit and a second stage amplifier unit. The first stage amplifier unit amplifies a single input signal in a single-to-differential mode to generate a differential output signal, without using a reference voltage. The second stage amplifier unit amplifies the differential output signal in a differential-to-single mode to generate a single output signal. Full Article
ive Transmit-receive front end By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT The present invention discloses a transmit-receive (TR) front end. The TR front end includes a low-noise amplifier (LNA); a power amplifier (PA); a transformer, coupled to the PA, for increasing a voltage swing and a power transmission of the PA; and a TR switch, coupled between the transformer and the LNA. The LNA is single ended and there is no transformer between the LNA and the TR switch. Full Article
ive Tunable wide band driver amplifier By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A tunable wide band driver amplifier is disclosed. In an exemplary embodiment, an apparatus includes a first band selection circuit selectively connected between an output terminal of an amplifier and a circuit ground. The first band selection circuit configured to adjust an amplification band from a first frequency band to a second frequency band. The apparatus also includes a first harmonic reduction circuit selectively connected between the first band selection circuit and the circuit ground and configured to reduce 2nd harmonic frequencies associated with the first frequency band when the amplification band is set to the first frequency band. Full Article
ive Power amplifier with an adaptive bias By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An electronic circuit, including, a power amplifier adapted to amplify an RF signal and provide it as output from the integrated circuit; a power source that is adapted to provide an unregulated voltage to the power amplifier; a regulator adapted to provide a regulated bias voltage; a subtracter that is adapted to accept a voltage proportional to the unregulated voltage and subtract it from the bias voltage to provide a reference voltage to the power amplifier; wherein the power amplifier is adapted to use the reference voltage to adjust the output from the power amplifier so that it will provide a stable power output. Full Article
ive Impedance matching method for a multiband antenna, and transmission or receiver channel having automatic matching By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An automatic antenna impedance matching method for a radiofrequency transmission circuit. An impedance matching network is inserted between an amplifier and an antenna. The output current and voltage of the amplifier and their phase difference are measured by a variable measurement impedance, and the complex load impedance of the amplifier is deduced from this; the impedance of the antenna is calculated as a function of this complex impedance and as a function of the known current values of the impedances of the matching network. Starting from the value found for the impedance of the antenna, new values of the matching network are calculated that allow the load to be matched to the nominal impedance of the amplifier. The measurement impedance has a value controllable by the calculation processor according to the application and notably as a function of the operating frequency and of the nominal impedance of the amplifier. Full Article
ive Blind I/Q mismatch compensation with receiver non-linearity By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Apparatus and methods disclosed herein perform gain, clipping, and phase compensation in the presence of I/Q mismatch in quadrature RF receivers. Gain and phase mismatch are exacerbated by differences in clipping between I & Q signals in low resolution ADCs. Signals in the stronger channel arm are clipped differentially more than weaker signals in the other channel arm. Embodiments herein perform clipping operations during iterations of gain mismatch calculations in order to balance clipping between the I and Q channel arms. Gain compensation coefficients are iteratively converged, clipping levels are established, and data flowing through the network is gain and clipping compensated. A compensation phase angle and phase compensation coefficients are then determined from gain and clipping compensated sample data. The resulting phase compensation coefficients are applied to the gain and clipping corrected receiver data to yield a gain, clipping, and phase compensated data stream. Full Article
ive Transceiver and related switching method applied therein By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A transceiver includes: a power amplifying circuit arranged to generate differential output signals during a transmitting mode of the transceiver; a balance-unbalance circuit arranged to convert the differential output signals into a single-ended output signal; a switchable matching circuit arranged to receive the single-ended output signal on a signal port of the transceiver during the transmitting mode, and to convert a single-ended receiving signal on the signal port into a single-ended input signal during a receiving mode of the transceiver; and a low-noise amplifying circuit arranged to convert the single-ended input signal into a low-noise input signal during the receiving mode. The power amplifying circuit, the Balun, the switchable matching circuit, and the low-noise amplifying circuit are configured as a single chip. Full Article
ive Universal accessories for oscillating power tools By www.freepatentsonline.com Published On :: Tue, 23 Dec 2014 08:00:00 EST An accessory for coupling to an attachment mechanism of an oscillating power tool includes a working end, an opposite rear end, and a fitment portion adjacent the rear end portion. The fitment portion includes a generally U-shaped opening having a central portion and a rearward portion open to the rear end, and configured to receive a post of a tool clamping mechanism. The fitment portion further includes a first plurality of openings in communication with and extending radially outward from the central portion, a second plurality of openings not in communication with and positioned radially outward from the central portion. The central portion, the first plurality of openings, and the second plurality of openings are configured to couple the fitment portion to a plurality of different configurations of attachment mechanisms for oscillating power tools. Full Article
ive Torque-limiting driver with a self-locking adapter By www.freepatentsonline.com Published On :: Tue, 30 Dec 2014 08:00:00 EST An internal adapter for use in torque-limiting handles for interchangeable orthopedic tools contains a slidable collar component, house component, retaining ring, spring, driver component, cover and cam which engages a torque-limiting mechanism. A plurality of securing ball mechanisms releasably secure an orthopedic tool in the adapter, while a configuration of chamfered surfaces centrally stabilize the tool. A plurality of guiding chamfers located in a driver component rotationally secures the orthopedic tool. Full Article
ive Fluid-actuated workholder with a collet driven by a soft and thin bladder By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST A workholder to hold a workpiece, including a main body partially defining a fluid chamber, and a bladder carried by the main body with an interference fit, further defining the fluid chamber, and composed of an 80 to 100 durometer Shore A scale hardness polymer of a 12:1 to 18:1 diameter-to-wall-thickness ratio. Annular seals may further define the fluid chamber, and are disposed radially between the bladder and main body and axially adjacent the fluid chamber, and are composed of a 60 to 80 durometer Shore A scale hardness polymer. A collet is carried and driven by the bladder for gripping engagement with the workpiece. Full Article
ive Universal mounting hole means for different electric tool heads By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST The present invention discloses a kind of universal mounting hole means for different tool heads of electric tools, which are disposed on a mounting portion of the tool head, comprising a central hole and a plurality of long and narrow limiting holes which orient radially surrounding the central hole and disposed in distance with each other. Compared with the prior art, the present invention is applicable to various kinds of structures of the mounting seat on electrical tool and is more universal. It takes much convenience to people when changing different tool heads of electric tools, and it is benefit for storing. Full Article
ive Suture driver By www.freepatentsonline.com Published On :: Tue, 11 Apr 1995 08:00:00 EDT A suture driver for clamping a suture in the hollow passage and a recessed channel thereof and manipulating the suture to and from a surgical site. The driver includes an outer member tube having a closed and pointed distal end for percutaneous introduction into the body of a patient. The outer tube also includes a recessed channel positioned proximal the closed distal end of the hollow passage extending longitudinally therein and for receiving the suture therein. An inner rod is positioned in the passage of the outer tube and has a clamping surface at the distal end thereof for engaging a suture positioned in the recessed channel. The inner rod is slid through the recessed channel to clamp the suture in the hollow passage of the outer tube against another clamping surface at the distal end of the tube. A handle positioned at the proximal end of the outer tube and inner rod is manipulated to slide the inner rod through the recessed channel and clamp the suture in the hollow passage between the two clamping surfaces. The inner rod positioned through the recessed channel also reinforces the outer tube during percutaneous introduction into the patient. Full Article
ive Progressive die apparatus and method for forming surgical incision members By www.freepatentsonline.com Published On :: Tue, 10 Sep 1996 08:00:00 EDT There is disclosed an apparatus for forming a surgical incision member comprising which includes a first die associated with a base and having a first groove therein for receipt of at least a portion of a needle blank. A second die is mounted for movement on the base between a position remote from the first die and a position adjacent the first die. The second die includes a second groove alignable with the first groove to hold a needle blank therebetween, the first and second dies each having spaced apart channels intersecting the first and second grooves. A notching die is provided and is mounted for movement within at the channels so as to engage and notch an edge of the needle blank contained within the first and second grooves. The apparatus also includes structure for curving a needle blank contained within the first and second grooves. A method of forming a surgical incision member is also disclosed, and a surgical incision member blank. Full Article
ive Progressive die/carrier apparatus and method of forming surgical needles and/or incision members By www.freepatentsonline.com Published On :: Tue, 24 Jun 1997 08:00:00 EDT There is disclosed an apparatus and a method for progressively forming high strength surgical needles from bulk needle stock material. The apparatus generally includes a series of progressive needle processing stations. A first series of needle processing stations removes material from needle stock material to rough form needle blanks attached to a carrier strip while a second series of processing stations refine the rough formed needle blanks attached to the strip into the desired surgical needles. The disclosed method generally includes the steps of gutting needle stock material to rough form needle blanks attached to a carrier strip and progressively coining the rough formed blanks into surgical needles. Finally, there is disclosed a high bend strength surgical needle formed on the disclosed apparatus or by the disclosed method. Preferably, the surgical needle is a surgical incision member having a predetermined radius of curvature and an optimized conical radius at the tips. Full Article