Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

Abstract: A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the configurable mixer is configured to operate as a double-balanced mixer to multiply a first differential signal by a second differential signal. In the legacy mode, the configurable mixer is configured to as a double-balanced mixer to multiply a differential signal by a single-ended signal. In the low-power mode, the configurable mixer is configured to operate as a single-balanced mixer to multiply a differential signal by a single-ended signal. The operating mode of the configurable mixer may be based, at least in part, on a mode control signal. In some embodiments, the configurable mixer may be included in an analog front end of a wireless communication device.

Abstract: A circuit includes an active balun having an RF signal input and having differential signal outputs, the active balun including a first pair of transistors coupled to the RF signal input, the first pair of transistors including a first transistor of a first type and a second transistor of a second type, wherein the first type and second type are complementary; and an intermodulation distortion (IMD) sink circuit having an operational amplifier (op amp) coupled between a first node and a second node, wherein the first transistor and second transistor are coupled in series between the first node and the second node.

Abstract: A multi-stage low-noise amplifier (LNA) device with a band pass response includes a first LNA in series with a second LNA. The device further includes multiple outputs coupled to the second LNA. Each of the outputs is capable of being active at the same time. The device further includes a high pass filter coupled between the first LNA and the second LNA.

Abstract: A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit also includes a switchable feedback path. The switchable feedback path includes a first low-pass filter coupled to an output of the TIA. The switchable feedback path also includes a first switch to couple the feedback path to provide a feedback current to the first path resulting in a bandpass response in the output voltage when the switch is closed and a low-pass response in the output voltage when the switch is open.

Abstract: Methods, systems, and apparatuses, including computer programs encoded on a computer storage medium, can be implemented to perform actions for capturing assessments. The actions can include receiving data that is related to an entity from one or more sources, processing one or more portions of the data to provide one or more analyses associated with the one or more portions of the data, generating a user interface that displays one or more portions of the data in association with the one or more analyses and a section for assessing the entity, outputting the user interface to a processing device for display of the section and display of the one or more portions of the data in association with the one or more analyses, receiving an assessment of the entity from the user interface, and storing the assessment in association with the entity.

Abstract: A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and titanium are leached into solution. Iron in the ferric state may be separated from titanium in solution using extraction with alkyl ketone. More effective separation of titanium with lower contamination with iron is obtained.

Abstract: Described herein are powder coated films comprising a polymer matrix designed for use in a toothpaste to indicate a color change during brushing, dentifrice compositions comprising the films, and methods of making and using the same.

Abstract: A circuit, a method and an apparatus, are described. A radio frequency (RF) signal received from a transmission line is provided to the source of a transistor in a common-gate amplification circuit. A series resonance connected to the source provides a low impedance path to ground for interfering RF components in the RF signal. The series resonance is tuned to provide a high impedance to a band of frequencies centered on a frequency of interest and to shunt interfering RF components outside the band of frequencies centered on the frequency of interest. The interfering RF components may include a harmonic of the frequency of interest.

Abstract: A process for the extraction of alumina from an aluminum-bearing ore or concentrate, comprising the steps of leaching the aluminum-bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a temperature of from 90° C. to the boiling point of the solution and at an Eh of at least 200 mV. After a liquid/solids separation step, the solution obtained is subjected to steps for removal of iron and for recovery of alumina.

Abstract: An air intake system includes a first inlet and a first valve member that moves between an open position and a closed position to regulate flow through a first passage toward a manifold. The first valve member is biased toward the open position. The system also includes a second inlet and a second valve member that moves between an open position and a closed position to regulate flow through a second passage toward the manifold. The second valve member is biased toward the closed position. Moreover, the system includes a sensor that detects a condition of the vehicle and a controller that simultaneously causes the first valve member to move toward the closed position and the second valve member to move toward the open position when the sensor detects the condition.

Abstract: An aqueous composition comprising surfactant, water, and a suspending agent comprising microfibrous cellulose that is characterized by a particle size distribution of the microfibrous cellulose that provides for increased structuring of the composition to suspend material.

Abstract: A process that degasses a structured surfactant composition that comprises at least one surfactant, water, and at least one suspending agent chosen from polysaccharides, gums, and celluloses. By degassing the composition, the suspending agent can form a structured system. Gas, such as air bubbles, disrupts the formation of the structuring system, which reduces the ability of the composition to suspend materials.

Abstract: An aqueous composition comprising surfactant, water, and a suspending agent comprising microfibrous cellulose that is characterized by a particle size distribution of the microfibrous cellulose that provides for increased structuring of the composition to suspend material.

Abstract: A process that degasses a structured surfactant composition that comprises at least one surfactant, water, and at least one suspending agent chosen from polysaccharides, gums, and celluloses. By degassing the composition, the suspending agent can form a structured system. Gas, such as air bubbles, disrupts the formation of the structuring system, which reduces the ability of the composition to suspend materials.

Abstract: A device selects a mode and communicates data based on the selected mode. The device comprises at least one interface circuit configured to monitor analog audio signals from a customer premise equipment device and a processor circuit. The processor circuit assigns a first band mode for converting the analog audio signals to data packets if the analog audio signals do not have frequency components outside the first band of frequencies and assigns a second band mode for the conversion otherwise. The assignment of the second band mode for the conversion enables the output circuit to use a larger bandwidth of the communication channel to a network.

Abstract: The charging circuit for charging a battery of an electronic device using a connected AC power adaptor includes circuitry responsive to an applied regulated voltage for charging the battery connected to the charging circuitry. The circuitry prevents the regulated voltage applied to the circuitry from falling below a settable voltage level. Additionally, the circuitry switches a charging current between a quick charge level and a trickle charge level responsive to a state of a transistor.

Abstract: An interactive information delivery terminal includes an information display unit, retrieval client for generating control commands for transmission to an information store over a first communications link, for the retrieval of information therefrom, and a user interface for receiving control commands from a user device over a second communications link for controlling the retrieval client. The terminal is connected to the Internet and a short range radio (piconet) interface, for example a “Bluetooth” interface and is located in a position where it is not vulnerable to damage but where it is nevertheless visible. The radio interface is located so that it can make radio contact with interface units fitted to user handsets in a publicly accessible region. Through the Internet the terminal may be connected to any other internet site.

Abstract: A method for charging a battery of an electronic device using a connected a/c power adapter comprising the steps of determining a state of a transistor connecting a regulated voltage to the battery and switching a charging current applied to the battery between a quick charge level and a trickle charge level responsive to the state of the transistor.

Abstract: An incoming call is received. Prior to transmitting a first ringing signal for the incoming call, an advanced calling feature signal is transmitted to customer premises equipment (CPE) on a local line at the customer premises. Then, the first ringing signal is transmitted to the CPE via the local line.