Abstract: Class-D amplifiers have evolved from using binary pulse-width modulation (PWM) modulators to three-level PWM modulators. Three-level PWM drivers for audio applications offer the benefits of eliminating costly elements at the output of an audio system. However, they also introduce increased common-mode interference. Three-level PWM generates three states, but one state has two interchangeable representations which can be scrambled in order to shape the common-mode output spectrum.

Abstract: A reverse auction method and system are provided for non-commodity goods, services, and systems. A purchaser creates a description of goods, services and/or systems required by the purchaser and sends the description to a number of potential vendors. In response, the vendors prepare an offer template provided by the purchaser showing the components and services proposed by each vendor and prices associated therewith for supplying the required goods, services or systems. The proposal/offer from each vendor is adjusted to ensure that the offer from each vendor will produce a similar and acceptable result. A downward bidding increments session sets downward bidding that is allowed by the vendor during a subsequent auction process. Each vendor executes a contract that is binding on the vendor if the vendor's bid during a subsequent auction process is accepted as the lowest bid. An auction is held in which each vendor bids against other vendors using the pre-negotiated downward bidding increments.

Abstract: A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.

Abstract: A disclosed RF circuit includes a power amplifier that produces an RF output signal, a detector to generate a detector signal indicative of a power of the RF output signal, and an offset unit to produce an offset signal that indicates low supply voltage conditions. The power of the RF output signal is reduced, at least in part, by a control signal reflecting a combination of the detector signal and the offset signal. The circuit may include a transmitter to provide an RF input signal to the power amplifier. The transmitter may receive the control signal and adjust a power of the RF input signal based on the control signal. The detector may produce a control current indicative of the RF output signal power. The offset unit produces the offset signal based on a difference between the supply voltage and a nominal supply voltage value.

Abstract: An asymmetric data mirroring method with a local storage device and a remote storage device being separated by large distances is disclosed. A server determines a predetermined time period associated with a round trip latency between the server and a remote storage device. The server submits a request to a local storage device, a remote storage device and a memory device disposed between the server and the remote storage device. The server submits additional requests to the local and remote storage devices during the predetermined time period. The server stores a copy of each request submitted by the server to the remote storage device in a memory disposed between the server and the remote storage device while the server waits for whether an acknowledgement associated with the request has been received from the remote storage device during the predetermined time period. The server resubmits the request and the additional requests to the remote storage device if the acknowledgement is not received.

Abstract: A system for generating two-dimensional views of a three-dimensional model is provided. The system includes an active building model system generating one or more user-selected two-dimensional views of a three-dimensional building model. A floor plan view location system receives user control data and places a two-dimensional floor plan view in a user-selected location of a viewing window. An elevation view location system receives user control data and places a two-dimensional elevation view in a user-selected location of the viewing window.

Abstract: A flat panel display (FPD) support has a supporting bracket, a connecting assembly pivotally connected to the supporting bracket and a pulling assembly mounted between the supporting bracket and the connecting assembly. The connecting assembly is attached to an FPD to allow the supporting bracket to hold the FPD on a plane. The pulling assembly pulls the supporting bracket toward the panel bracket and a weight of the FPD allows the FPD and the supporting bracket leaning to each other to stay in a specific angle. Therefore, a visual angle of the FPD relative to a plane is easily adjusted by the supporting assembly. The FPD with the FPD support is light, simple and portable and is conveniently packaged for sale or transportation and does not occupy a large area when in use.

Abstract: A towel clip for securing a towel around the waist of a user, the towel clip typically including a body. The body has a longitudinal axis, and an inner and outer surface. The body has a first leg and a second leg and a bridge section. The bridge section is typically semicircular and the first leg and second extend outward therefrom. An embodiment of Applicant's towel clip includes a convex upper rail located on the inner surface of the first leg and a pair of convex lower rails spaced apart on the lower legs and extending upward from the inner surface of the lower leg. The bridge section is resilient and the legs will spread apart to exert pressure on a folded towel to secure the same.

Abstract: A system is described for encryption and decryption of digital data prior to the digital data entering the memory of a digital device by generating a key, sub-key and combining the sub-key with mixed digital data, where the encryption and decryption occurs between the memory controller and the input output register.

Abstract: Disclosed are processes for producing monolithic and metal doped monolithic porous carbon disks from prepolymer organic precursors in the powder form composed of either or both polyimide and polybenzimidazole. The powders are consolidated (compressed) into disks and then pyrolyzed to form the desired porous carbon disk. Porous carbon-carbon composite disks are also prepared by adding carbon to the prepolymer organic precursors.

Abstract: A device having a radio front end is provided. The radio front end includes an inductor having a first end and a second end. A capacitor having a first end and a second end is connected to the second end of the inductor. An antenna is connected to the second end of the inductor and the second end of the capacitor. A first switch is connected to the first end of the inductor and the first end of the capacitor, wherein the inductor and capacitor form a resonant circuit when the first switch is closed. A second switch is connected to the resonant circuit, the second switch connecting the resonant circuit to ground through a low impedance when the first switch is closed. A third switch is connected to a transmit power amplifier connecting the transmit power amplifier to ground through a low impedance when the first switch is closed.

Abstract: An integrated power combiner is disclosed. The power combiner includes a first circular geometry primary winding having one or more inductive elements, such as an active winding with one or more driver stages. A circular geometry secondary winding is disposed adjacent to the first primary winding, such as an active winding with one or more driver stages. A second circular geometry primary winding is disposed adjacent to the secondary winding and has one or more inductive elements. One or more connections are provided between one or more of the inductive elements of the first circular geometry primary winding and one or more of the inductive elements of the second circular geometry primary winding.

Abstract: A method of providing a caller with a directory assistance dialog. The dialog is configurable, at any level of the dialog, from an automated speech recognition (ASR) dialog to an operator-assisted (OP) dialog. The dialog is handed off to an operator if any level of the speech recognition dialog fails. Also, a configuration switch may be set to cause the dialog to be handed off to an operator even if a response at some level of the ASR dialog is successfully recognized.

Abstract: A disclosed power transistor, suitable for use in a switch mode converter that is operable with a switching frequency exceeding, for example, 5 MHz or more, includes a gate dielectric layer overlying an upper surface of a semiconductor substrate and first and second gate electrodes overlying the gate dielectric layer. The first gate electrode is laterally positioned overlying a first region of the substrate. The first substrate region has a first type of doping, which may be either n-type or p-type. A second gate electrode of the power transistor overlies the gate dielectric and is laterally positioned over a second region of the substrate. The second substrate region has a second doping type that is different than the first type. The transistor further includes a drift region located within the substrate in close proximity to an upper surface of the substrate and laterally positioned between the first and second substrate regions.

Abstract: A housing including longitudinally extending tubular members interconnected to allow controlled relative bending thereof, during a drilling operation, a rotary drive transmitting torsion bar extending generally longitudinally within the housing to controllably bend in response to relative bending of said members, a rotary drill bit operatively connected to said torsion bar to be rotated as the bar rotates, a rotary drive operatively connected to the torsion bar to rotate the bar, means for controlling relative bending of the said members during torsion bar rotation and as a function of such rotation.

Abstract: The invention relates to a demodulator circuit in a communication system using a multi-carrier modulation scheme. The demodulator uses channel state information for respective carriers in the multi-carrier modulation to de-map the received data.

Abstract: A new method and strategy for the quantitative determination of enantiomeric purity that combines polarimetry, spectroscopy, and chemometric modeling. Spectral data is collected after a light beam is passed through a first polarimeter, a sample of a chiral compound, and a second polarimeter oriented at a 45 degree angle relative to the first polarimeter. The spectral data for samples of known enantiomeric composition is subjected to a type of multivariate regression modeling known as partial least squares (“PLS-1”) regression. The PLS-1 regression produces a mathematical model that can be used to predict the enantiomeric composition of a set of samples of unknown enantiomeric purity.

Abstract: A system and method are provided for blocking a telephone call from a calling party to a called party, the calling party associated with a calling party directory number, including a local-designated trunk group over which the incoming telephone call from the calling party is received. A service switching point is coupled with the local-designated trunk group, the service switching point receiving the telephone call, generating a query message including the calling party directory number, and sending the query message to a service control point. The service control point is coupled with the service switching point, receives the query message, and determines if the calling party is inter Local Access and Transport Area (interLATA) with respect to the service switching point.