ba Partial adiabatic conversion By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Operation of a charge pump is controlled to optimize power conversion efficiency by using an adiabatic mode with some operating characteristics and a non-adiabatic mode with other characteristics. The control is implemented by controlling a configurable circuit at the output of the charge pump. Full Article
ba Phase locked loop with bandwidth control By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A phase locked loop (PLL) includes a first loop, a second loop, and a lock detector. The first loop locks a feedback signal having a frequency equal to a fraction of a frequency of an output signal to a reference signal in phase. The first loop has a first bandwidth. The second loop locks the feedback signal to the reference signal in frequency and has a second bandwidth. The first bandwidth is higher than the second bandwidth. The lock detector is coupled to the second loop and increases the second bandwidth in response to detecting that the feedback signal is not locked to the reference signal. Full Article
ba Methods, systems, and non-transitory computer readable media for wideband frequency and bandwidth tunable filtering By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response. Full Article
ba Main line wayside rail lubricating system with feedback By www.freepatentsonline.com Published On :: Tue, 31 Jan 2006 08:00:00 EST To lubricate a length of track, a plurality of lubricating nozzles are provided. Each nozzle is fed by the output of a single positive displacement pump, and all the pumps are controlled by a computer. Vibration sensors, sound sensors, or L/V ratio sensors detect physical qualities which occur as a train passes a given point, and another detector measures the time between successive wheels on the truck of a car as it passes a given point to measure train speed. The computer compares the output readings measured by the detector to a table of outputs in its memory that are indicative of a lubricated track to determine if lubrication is needed. Full Article
ba Conditioning device and method for drying and controlling the temperature of a ballast bed By www.freepatentsonline.com Published On :: Tue, 27 Jan 2015 08:00:00 EST Conditioning device (24) and method for drying and/or controlling the temperature of a ballast bed (12) of a railway track system (10), wherein the railway track system (10) has sleepers (14) resting on the ballast bed (12) and rails (16) resting on the sleepers, wherein the conditioning device has a bogie (30) for moving the conditioning device (24). An outlet nozzle (36) for blowing temperature-controlled air into the ballast bed (12) via at least one blowing-in region (26) positioned between two adjacent sleepers (14) is connected to the bogie (30), as is at least one cover plate (42) for essentially air-tight coverage of an upper side, pointing essentially in the direction counter to the direction of gravity, of a side strip (20), provided next to the sleepers (14) in the direction of travel, of the ballast bed (12). In a method for drying and controlling the temperature of a ballast bed (12) of a railway track system (10), an upper side of the ballast bed (12) and/or at least one sleeper (14) and at least one rail (16) are sealed in an essentially air-tight fashion outside a blowing-in region (26) before temperature-controlled air is blown into the ballast bed (12) via the blowing-in region (26). Full Article
ba Balancing of the rotary anode of an X-ray tube By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT An X-ray tube with a rotatable anode for generating X-rays and an X-ray apparatus and a method for balancing the rotary anode of an X-ray tube include balancing of the rotary anode applicable to an anode mounted inside an X-ray tube. The rotatable anode includes an anode disc fixedly mounted to a rotatably driven support body, which is rotatably supported by a bearing arrangement. The anode includes at least one balancing cavity to adjust the center of gravity of the anode. The balancing cavity is partly filled with a balancing material being solid at operating temperature of the X-ray tube and liquid at a higher temperature. The balancing method includes determining an imbalance of the anode; heating liquefy balancing material; dislocating the balancing material inside the balancing cavity to compensate the imbalance; and cooling to solidify the balancing material. Full Article
ba Hybrid process using ion exchange resins in the selective recovery of nickel and cobalt from leaching effluents By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention is directed to a hybrid process using ion exchange resins in the selective recovery of nickel and cobalt of leaching effluents that is comprised of the steps of processing (1) the laterite ore (M), which is then treated through leaching (2) (either atmospheric or under pressure), considering solutions from the solid-liquid separation step of existing plants already in operation (2) as well, in a way that the downstream process comprises an ion exchange hybrid circuit, wherein the first ion exchange step (3) with resins (Re) exhibits specific selectivity conditions for the removal of iron, aluminum and copper and an increased pH, and the second ion exchange step (4) allows the removal of nickel and cobalt. Full Article
ba Production process for composite oxide, positive-electrode active material for lithium-ion secondary battery and lithium-ion secondary battery By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A production process for composite oxide expressed by a compositional formula: LiMn1-xAxO2, where “A” is one or more kinds of metallic elements other than Mn; and 0≦“x” Full Article
ba Carbon catalyst, method of producing same, and electrode and battery each utilizing same By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Provided is a method of producing a carbon catalyst having an improved activity. The method of producing carbon catalyst including a carbonization step of carbonizing raw materials containing an organic compound as a carbon source, a metal, and an electrically conductive carbon material to produce a carbonized material; a metal impregnation step of impregnating the carbonized material with a metal; and a heat treatment step of subjecting the carbonized material impregnated with the metal to a heat treatment. Full Article
ba Convertible furniture system base and modular applications including armchairs, tables, and storage cabinets By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present invention pertains to a modular furniture system in which a flat-foldable or easily assembled and disassembled rigid base structure composed of rectangular-cross-sectioned pieces each with specific dimensions serves variously, once assembled, as the supporting framework for a flat-foldable chair seat-and-backrest module, which configured together with the base structure serves as either an upright dining chair with armrests or as a lower and more reclined lounge chair with armrests, or alternatively as configured for supporting the connectable or foldable components of a flat planar surface module to be used for dining or to serve as a desktop, or alternatively as configured for supporting a storage cabinet module with drawers or doors. Full Article
ba Battery-mounting structure By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT According to one embodiment, a battery-mounting structure includes a first housing, a second housing including a display device including a display screen, a hinge configured to attach the second housing to the first housing rotatably between a first position in which the display screen is covered with the first housing and a second position in which the display screen is exposed, and a battery configured to be attached to the first housing and including a recess configured to accommodate a part of the second housing in the second position. Full Article
ba Polyurethane ballast layer, the method for preparing the same and the use thereof By www.freepatentsonline.com Published On :: Tue, 04 Nov 2014 08:00:00 EST The present invention relates to a polyurethane ballast layer, the method for preparing the same and a railway comprising the polyurethane ballast layer. The polyurethane ballast layer provided in this invention comprises a polyurethane-filled ballast layer and a polyurethane external protective layer, wherein the polyurethane-filled ballast layer comprises ballasts and polyurethane foam filled in the space among the ballasts. The polyurethane ballast layer provided in this invention can reduce the probability of ballast crashing, shifting and cracking under heavy load, and separate the ballast track from the outside environment to prevent rain, snow and wastes from entering into the internal space of the ballast track bed. Furthermore, the polyurethane ballast layer can keep the polyurethane foam filled in the ballasts layer away from water in the outside environment to avoid hydrolysis. The polyurethane ballast layer presented in this invention can be used in the railway ballast track bed to extend the track bed maintenance cycle, and save maintenance cost significantly. Full Article
ba Ballast anti-flight railroad sleeper By www.freepatentsonline.com Published On :: Tue, 10 Feb 2015 08:00:00 EST A ballast anti-flight sleeper characterized by having on the upper face two surfaces endowed with sufficient inclination as to prevent the accumulation of ballast over this side of the sleeper, with this geometric topology being the main claim; the fundamental elements in the same figure: track (1), ballast anti-flight sleeper (2), ballast (3) and the elements to anchor and secure the track (4). Full Article
ba Automated banking machine that operates responsive to data read from data bearing records By www.freepatentsonline.com Published On :: Tue, 03 Mar 2015 08:00:00 EST Automated banking machines operate to cause financial transfers responsive to data read from data bearing records. Each of the automated banking machines includes a card reader that is operative to read data from user cards corresponding to financial accounts. Transactions are authorized responsive at least in part to correspondence between card data and stored data corresponding to authorized users. Entities responsible for operating the automated banking machines may receive messages that include information or update code items for software or firmware usable in the banking machines for which they have operational responsibility. Full Article
ba Reclosable bag having a sound producing zipper By www.freepatentsonline.com Published On :: Tue, 10 Mar 2015 08:00:00 EDT A zipper for use in a reclosable bag including an elongated groove profile having two arms which form a general U-shape to define an opening to a channel, and an elongated rib profile opposing the groove profile. A plurality of first segments of the rib profile alternate with a plurality of second segments of the rib profile to create a structural discontinuity along a length thereof. The first segments have larger cross-sections and shorter lengths than the second segments such that interlocking the groove and rib profiles creates the audible clicking sound when the groove and rib profiles are engaged. Full Article
ba Self opening bags with attaching features By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A self opening bag includes front and real walls joined at their respective first and second side and bottom edges. The bag is folded at least once parallel to its side edges. At least one attaching feature is located on the outer surface of the bag adjacent the upper end and between the folded walls. The bag is releasably attached to a subsequent bag. The at least one attaching feature causes the bag to open as the bag is pulled from the subsequent bag. The once folded bag may be sealed at the bottom edges after folding to form a star-sealed bag bottom. The bags may be removably attached to each other at a perforation line and wound onto a compact roll for use with a bag dispenser. The bags may have an upper seam, a U-shaped cut and a pair of bag handles. The bags may be corona treated. Full Article
ba Heat activated adhesives for bag closures By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A polymeric woven bag has a first panel and a second panel and an open end of the bag to be pinched closed. A first layer of heat activated adhesive material is on a portion of the bag to form an adhesive-to-adhesive seal by contact with a second layer of heat activated adhesive material on a portion of the bag, wherein a chemical family of the adhesive layers comprises polyolefin thermoplastic components, and wherein the first adhesive layer and the second adhesive layer have respective heat activation temperatures below the softening point temperature of the polymeric bag material. Full Article
ba Adhesive closure strip for bulk material product bag By www.freepatentsonline.com Published On :: Tue, 17 Mar 2015 08:00:00 EDT A bulk material product bag has an adhesive closure strip fixedly secured thereon. As a result of the adhesive closure strip being oriented transversely across the normally open end region of the bulk material product bag so as to be adhesively bonded to both the back and front sides of the bulk material product bag, the adhesive closure strip effectively closes and seals the open end region of the bulk material product bag. Handle structure can also be integrally incorporated within the adhesive closure strip. Full Article
ba Adapter for a free-standing bag By www.freepatentsonline.com Published On :: Tue, 24 Mar 2015 08:00:00 EDT Disclosed herein is an adapter for use with ordinary lawn and leaf bags and a method for manufacture of such adapter. The adapter has a cavity that has four sides and four corners, and a lower portion consisting of four flaps. The use of a frame, side and/or corner fasteners create an adapter where the flaps lie inside the bag and the cavity remains outside the bag to create a large surface area for filling the bag and also prevents the mouth of the bag from closing due to wind or other forces. Full Article
ba Self-supporting storage bag with resealable pour spout By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT A reclosable bag or pouch configured to store, and to easily pour, material. The reclosable bag is configured with an integral pour spout having a reclosable fastener to facilitate the pouring of material from the bag, and subsequent resealing. By locating the pour spout along an upper side of the bag, material is focused downward from the bag, and not outward, when poured. Bags configured in this manner thus provide end users with enhanced control over the dispensing rate and direction of their contents. In some embodiments, the bag is also configured as a self-supporting bag capable of resting generally upright upon its bottom end. Full Article
ba Insulated foam bag and fabrication method By www.freepatentsonline.com Published On :: Tue, 31 Mar 2015 08:00:00 EDT An insulated container includes a first laminated structure having a metal layer and a second laminated structure having a metal layer. The metal layer of the first laminated structure faces the metal layer of the second laminated structure. The insulated container also includes a foam material layer disposed between the first laminated structure and the second laminated structure. The metal layer of the first laminated structure is bonded to the metal layer of the second laminated structure at a plurality of locations. Full Article
ba Bag with detachable hanging accessory portion By www.freepatentsonline.com Published On :: Tue, 14 Apr 2015 08:00:00 EDT In an embodiment of the disclosed technology, a bag is used for transporting and organizing items. The bag is generally formed of a removably attachable upper and a lower portion. The upper portion forms at least a portion of one side of the bag and is attached to the lower portion by a fastening mechanism. The lower portion forms the bottom and at least a portion of the sides of the bag. The upper portion is detachable to provide a hanging accessory organizer, having pockets and suspension device. In embodiments of the disclosed technology, access to the bag may be provided by an additional fastenable opening. Zippers may be used as the fasteners, and may run parallel to one another, completely or partially surrounding the perimeter of the upper portion. Full Article
ba Gift bag holder By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT An embodiment of the invention provides a device for holding an article, wherein the device includes a front panel including a first aperture positioned above a second aperture. The first aperture is dimensioned to receive a display hook; and, the second aperture is dimensioned to receive and retain the article. A rear panel is hingedly connected to the front panel, wherein the rear panel includes a third aperture positioned above at least one fourth aperture. The third aperture is dimensioned to receive the display hook; and, the fourth aperture is dimensioned to receive and retain a second article. The device further includes a card removably connected to the rear panel via perforations. Full Article
ba Flexible storage bag By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A flexible storage bag defines an inner storage area within which is provided a flexible barrier. A user can select a first storage mode wherein the flexible barrier is positioned to one side such that only a single storage zone is available for storing products; or a dual storage mode wherein the barrier divides the storage area into first and second storage zones. The bag preferably includes an upper closure assembly having a loop extending therefrom to aid a user in sealing the bag, as well as potentially hanging the bag from a hook. The bag optionally includes a lower closure assembly on the flexible barrier for selectively sealing one of the multiple storage zones. Offset tabs may be provided to aid a user in opening the bag. In some embodiments, the bag includes a graphical image puzzle constituting multiple graphic images that combine to form a completed image. Full Article
ba Bag with chuck tape By www.freepatentsonline.com Published On :: Tue, 21 Apr 2015 08:00:00 EDT A bag 1 with a reclosable tape includes a reclosable tape 20 having a male fastener part 21 and a female fastener part 22 attached to one inner surface of a bag body 10, a cut tape 23 provided between mounting base parts 212 and 222 of those fastener parts, and an easily unsealable structure 50 formed on the mounting base part 212 adjacent to the cut tape 23 in an unsealing start part 30 of a side seal part 60 of the bag body. The easily unsealable structure 50 may be formed by: forming a hole portion 50a or a portion formed by a weak line on the mounting base part 212, arranging a thickness of the mounting base part 212 in the unsealing start part 30 so as to be thinner than other portions, or forming a non-adhesive part between the mounting base part 212 and the cut tape 23. Full Article
ba Bag and method of making the same By www.freepatentsonline.com Published On :: Tue, 28 Apr 2015 08:00:00 EDT The plastic bag may include flexible thermoplastic sidewalls that have a pattern imparted onto them. The wrinkle pattern may be a plurality of linear ribs formed into the sidewall that may be arranged adjacent and parallel to one another. To impart the pattern to the sidewall, a thermoplastic web used to make the sidewall may be directed between a first cylindrical roller and a second cylindrical roller, each of which may have a plurality of spaced ridges extending about their peripheries. When the web is directed between the first and second rollers, the meshing of the ridges may form ribs into the web. Full Article
ba Flexible multichamber bag By www.freepatentsonline.com Published On :: Tue, 05 May 2015 08:00:00 EDT The present invention refers to a flexible multiple chamber bag comprising: a) three adjacent chambers, a first chamber partially separating a second upper chamber from a third lower chamber by first and second welded seams,b) said second chamber and said third chamber being partially connected by a third welded seam,c) said first welded seam being non-peelable and said second and third welded seams being peelable said second and third welded seams having the shape of an inverse letter “V” each second and third welded seam starting at the basic point of said “V” and terminating essentially in a right angle at the circumference weld of said bag, said bag comprising a hanger flap extending from the top end of said bag and a medical port welded to the lower end of said circumferential weld. Full Article
ba Gift bags with removable, configurable and wearable parts By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Gift bags with removable, configurable and wearable parts and components have multiple interconnected panels which include a bottom panel and multiple interconnected generally vertically oriented side panels which together form a bag or container with an interior volume which is accessible through an opening. Incorporated into or attached to one or more of the side panels or bottom panel are articles or components, structures or objects which fit with one or more of the side panels. The articles, components, structures or objects are detachable from the one or more side panels. The removable components are preferably secured to or made integral with any of the side panels by structures, devices or materials by which the components are both structural; aesthetic, decorative or ornamental, yet also relatively easily detachable. Full Article
ba Reusable food storage bag and process for making a reusable storage bag By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention is a washable and reusable storage bag comprising a plastic coated canvas made from cotton and polyethylene. The storage bag comprises a front panel having a zipper and a back panel, a bottom edge and a top edge, and two side edges. The bag further comprises a rectangular transparent polyurethane window in the front panel, preferably in the shape of a rectangle. Two opposing sides of the transparent polyurethane window are heat sealed to the plastic coated canvas to create a liquid tight seal between the transparent polyurethane window and the plastic coated canvas. The outside of the storage bag can be customized with, e.g., designs, branding, and/or advertising. The storage bags can be hand washed, put in the dishwasher or put in the washing machine and clothes dryer. Full Article
ba Load balancer By www.freepatentsonline.com Published On :: Tue, 07 Apr 2015 08:00:00 EDT According to one embodiment, an apparatus comprises an interface and one or more processors. The interface receives a request for a web page from a web browser. The one or more processors select a subset of web servers from a resource pool according to a load balancing determination. The one or more processors send the request to at least two of the web servers of the subset before receiving any response from the other web servers. Upon receiving one or more responses from distinct web servers, the one or more processors selects a response to communicate to the web browser. Full Article
ba 50 CFM bath fans with lens cover and flaps/ears that allow housings to be mounted to joists By www.freepatentsonline.com Published On :: Tue, 12 May 2015 08:00:00 EDT Apparatus, systems and methods of 50 CFM exhaust and ventilation fans for bathrooms with grill covers having removable light lens covers, and flaps/ears that allow the housings to mount directly to joists and/or other structural members inside of a ceiling or inside of a wall. The housing can include a mounting plate having a motor with attached impeller thereon, wherein the mounting plate with motor and attached impeller and electrical connectors can be removed as a single unit from the housing for accessing and inspecting interior wire connections during inspection and for ease in replacing parts such as burned out motors overtime. Full Article
ba Blade-pitch control system with feedback lever By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The present application includes a blade-pitch control system for controlling a pitch angle of each of a plurality of blades on an aircraft rotor. A feedback lever associated with each blade is pivotally mounted to the rotating portion of a swashplate assembly. A pitch link connects an output arm of a lever to a pitch horn of a corresponding blade, and a feedback link connects the input arm of the lever to a yoke. Flapping motion of the yoke causes motion of the feedback link, and this motion causes corresponding rotation of the lever. Rotation of the lever causes motion of the pitch link, which changes the pitch angle of the attached blade. This provides for selected pitch-flap coupling between flapping motion of the yoke and pitch motion of the blades. Full Article
ba Spatial derivative-based ray tracing for volume rendering By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A machine-implemented display method that, with respect to a volume dataset being rendered, enables a user to navigate to any position in space and look in any direction. Preferably, the volume dataset is derived from a computer tomography (CT) or magnetic resonance imaging (MRI) scan. With the described approach, the user can see details within the dataset that are not available using conventional visualization approaches. The freedom-of-motion capability allows the user to go to places (positions) within the volume rendering that are not otherwise possible using conventional “orbit” and “zoom” display techniques. Thus, for example, using the described approach, the display image enables a user to travel inside physical structures (e.g., a patient's heart, brain, arteries, and the like). Full Article
ba Amplified backscatter x-ray inspection system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A method and apparatus for inspecting an object. A radiation generation system is configured to emit radiation. A detector system is configured to detect backscatter formed in response to the radiation encountering the object. A redirection system is positioned relative to the detector system and is configured to redirect the backscatter to the detector system. Full Article
ba Dual energy backscatter X-ray shoe scanning device By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT Dual-energy backscatter x-ray shoe scanning including: pre-processing input image information received from a shoe scanning device and image calibration data received from a database to output an atomic number image; detecting at least one suspect region based off the atomic number image; identifying the at least one detected suspect region as an object class using a changeable list of attributes; and classifying the object class according to a changeable list of categories. Full Article
ba Real-time, on-line and offline treatment dose tracking and feedback process for volumetric image guided adaptive radiotherapy By www.freepatentsonline.com Published On :: Tue, 24 Nov 2015 08:00:00 EST A method of treating an object with radiation that includes generating volumetric image data of an area of interest of an object and emitting a therapeutic radiation beam towards the area of interest of the object in accordance with a reference plan. The method further includes evaluating the volumetric image data and at least one parameter of the therapeutic radiation beam to provide a real-time, on-line or off-line evaluation and on-line or off-line modification of the reference plan. Full Article
ba Target device for determining received hits in a light based weapons simulation system By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A target device is usable with a simulation system which includes a weapon simulator having a trigger, a chamber for firing a blank cartridge in response to the trigger, and a transmitter arranged to emit a light signal defining one or more activation codes of prescribed duration in response to the trigger. The target device includes a sensor array of photodiodes and a processor receiving output signals from the photodiodes. The processor determines that the sensor array has been hit by the weapon simulator in response to a first portion of one activation code being received by one of the photodiodes and at least one second portion of the same activation code being received by the same or a different one of the photodiodes when the first portion and the at least one second portion correspond to an entirety of one activation code within the respective prescribed duration. Full Article
ba BABY CARRIAGE By www.freepatentsonline.com Published On :: Tue, 23 Jan 1973 08:00:00 EST A baby carriage for accommodating babies in a belly-down fashion, having an undercarriage-borne body of walls at least one of which comprises a see-through portion that may be partly or wholly covered by a removable light shade. In a preferred embodiment, at least one body end is higher than the rest of the body and windows extend over the height of said one higher end both at its sides and at its end wall. Full Article
ba Apparatus and method of compensating for I/Q imbalance in direct up-conversion system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An apparatus and a method of compensating for an I/Q imbalance in a direct up-conversion system prevents the performance of the system from being deteriorated by efficiently compensating for an I/Q timing skew, an I/Q phase imbalance, and an I/Q gain imbalance by using a characteristic of an OFDM scheme in an Orthogonal Frequency Domain Multiple (Access) (OFDM(A)) system using a direct up-conversion scheme. According to the apparatus and the method of compensating for an I/Q imbalance in the direct up-conversion system of the present invention, an OFDM(A) system using a direct up-conversion scheme may efficiently compensate for I/Q timing skew, I/Q phase imbalance, and I/Q gain imbalance by using a characteristic of an OFDMA scheme, so that a performance of the system is prevented from being deteriorated. Full Article
ba Method and device for retransmitting data under antenna gain imbalance By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT The disclosure provides a method and device for retransmitting data under antenna gain imbalance, and the method includes: determining that gains of multiple antennas at a transmission terminal are imbalanced; using a better spatial sub-channel in the multiple antennas to retransmit data when streams transmitted by the multiple antennas adopt a same Modulation and Coding Scheme; and using a better spatial sub-channel in the multiple antennas to retransmit data and/or using a single-stream approach to retransmit data when the streams transmitted by the multiple antennas adopt different Modulation and Coding Schemes. The disclosure selects a corresponding retransmission approach according to the condition of a spatial sub-channel on which streams have an error, thus improving and ensuring success rate for retransmitting a stream. Full Article
ba Sideband suppression in angle modulated signals By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT In an angle modulated radio transmitter, the total power is the same when modulated or unmodulated. Angle modulation produces multiple sideband pairs. The power in the sidebands is derived from the carrier. When a complex modulating waveform is used, the power (and therefore the amplitude) of the carrier varies. A system and method is provided for dramatically minimizing, to nearly zero, the bandwidth needed to transmit digital information using sideband suppression of angle modulated signals. The systems described use various techniques to suppress sideband pairs, leaving the carrier signal. The amplitude variations of the carrier are used to convey information. In some examples, techniques are used to filter and/or phase out one or more sideband pairs, leaving the carrier signal. Full Article
ba Method and apparatus for mitigating signal interference in a feedback system By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A system that incorporates the subject disclosure may include, for example, a process that includes adjusting a filter in electrical communication between an input terminal and a demodulator. The filter is applied to an information bearing signal, e.g., to mitigate interference, received at the input terminal, resulting in a filtered signal. An error signal is received, indicative of errors detected within information obtained by demodulation of a modulated carrier of the filtered signal. A modified filter state is determined in response to the error signal and the filter is adjusted according to the modified filter state, e.g., to improve mitigation of the interference. Other embodiments are disclosed. Full Article
ba Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT A wideband multi-channel receiver comprises an antenna configured to receive a radio frequency band. A band-pass filter is in signal communication with the antenna, and a low-noise amplifier is in signal communication with the band-pass filter. A mixer is in signal communication with the low-noise amplifier and is configured to translate a radio frequency band to an intermediate frequency (IF) band. A tunable local oscillator is in signal communication with the mixer. At least one fixed-frequency notch filter is in signal communication with the mixer, with the notch filter configured to reject at least one interference signal in the IF band while passing remaining signals in the IF band. An analog-to-digital converter is in signal communication with the notch filter and is configured to convert the remaining signals in the IF band to digital signals. Full Article
ba Discrete signal synchronization based on a known bit pattern By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT Systems and methods for discrete signal synchronization based on a known bit pattern are described. In one aspect of the present subject matter, a discrete signal synchronization system is configured to synchronize a preprocessed discrete signal with a modified discrete signal. The system comprises a processor and a synchronization module coupled to the processor. The synchronization module comprises an extraction module and comparison module. The extraction module determines a bit pattern from the modified discrete signal using Discrete Wavelet Transformation (DWT) and Singular Value Decomposition (SVD). The comparison module compares the determined bit pattern with a known bit pattern of the preprocessed discrete signal and records a time point at which the determined bit pattern matches with the known bit pattern of the preprocessed discrete signal as a synchronization point. Full Article
ba Video decoder with enhanced CABAC decoding By www.freepatentsonline.com Published On :: Tue, 21 Jul 2015 08:00:00 EDT A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding that includes at least two decoding modes, the first mode decoding the bitstream based upon a probability estimate which is based upon at least one of spatially and temporally adjacent syntax element values to a current syntax element being decoded, the second mode decoding the bitstream not based upon a probability estimate based upon other syntax elements to the current syntax element being decoded. The coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between sets probable modes with different probabilities. The coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes. Full Article
ba Image-based georeferencing By www.freepatentsonline.com Published On :: Tue, 26 May 2015 08:00:00 EDT An image-based georeferencing system comprises an image receiver, an image identification processor, a reference feature determiner, and a feature locator. The image receiver is configured for receiving a first image for use in georeferencing. The image comprises digital image information. The system includes a communicative coupling to a georeferenced images database of images. The image identification processor is configured for identifying a second image from the georeferenced images database that correlates to the first image. The system includes a communicative coupling to a geographic location information system. The reference feature determiner is configured for determining a reference feature common to both the second image and the first image. The feature locator is configured for accessing the geographic information system to identify and obtain geographic location information related to the common reference feature. Full Article
ba Gesture based interaction with traffic data By www.freepatentsonline.com Published On :: Tue, 02 Jun 2015 08:00:00 EDT Gesture based interaction with traffic data is disclosed. A virtual broadcast presentation may be generated based on dynamic information such as traffic information, weather information, or other information that may be featured on a virtual broadcast presentation. A gesture made by a user is detected and processed to determine an input command associated with the detected gesture. The virtual broadcast presentation may be manipulated based on the input command. Full Article
ba Conductor winding and inductors arranged to form a balun having a figure eight shape By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A balun including a first conductor winding, a first inductor, a second inductor, a third inductor, and a fourth inductor. The first conductor winding has a figure eight shape including a first loop and a second loop. The first inductor and the second inductor substantially surround the first loop. The third inductor and the fourth inductor substantially surround the second loop. Full Article
ba Compact broadband impedance transformer By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT The present invention is directed to an impedance transformation device for use in a system having a characteristic system impedance, the device being characterized by a predetermined bandwidth having a center frequency. The device housing size is one-eighth wavelength of the center frequency. A first coupler is characterized by an even mode impedance and an odd mode impedance. The bandwidth is a function of the even mode impedance and the odd mode impedance substantially corresponds to the component port impedance. At least one second coupler is disposed in parallel with the first coupler and is characterized by the even mode impedance and the odd mode impedance. Full Article
ba Balun transformer By www.freepatentsonline.com Published On :: Tue, 19 May 2015 08:00:00 EDT A balun transformer includes an unbalanced terminal, two balanced terminals, a directional coupler, a low pass filter, and a high pass filter. The directional coupler includes first, second, third and fourth terminals. The first terminal is connected to the unbalanced terminal. A predetermined phase difference exists between the output signal of the second terminal and the output signal of the third terminal. The second terminal is connected to the first terminal by a line constituting the directional coupler. The low pass filter is connected between the second terminal and one of the balanced terminals. The high pass filter is connected between the third terminal and the other balanced terminal. Full Article