Abstract: Systems and techniques for return loss estimation are described. A forward power sample is taken from a power amplifier of a transmitter by sampling a feedback signal used for power control of the amplifier, and a reflected power sample at an output of the power amplifier is taken by observing the power at a circulator termination of the power amplifier. A difference determination is made for the forward power sample and the fleeted power sample in the analog domain to determine a return loss and may be digitized for further processing such as return loss measurement and comparison against thresholds. A further comparator circuit may be used to insure that measurements are made when the signal strength is adequate.

Abstract: The specification and drawings present a new apparatus and method for using a common local oscillator for multiple transceivers (e.g., in a BST unit). One or two shared local oscillators LOs/frequency sources in a wireless transceiver may be configured to generate corresponding one or more oscillator signals, so that the corresponding portions of the one or two oscillator signals generated by the one or two LOs may be provided to multiple transmitters and to multiple receivers through corresponding paths in the wireless transceiver. For example it may be a shared use of frequency sources/LOs between multiple pipes/branches of the BST (one local oscillator for all transmitters, and another local oscillator for all receivers in the multiple pipes/branches). The implementation may require proper routing, and amplification and/or frequency conversion if necessary, of the shared LO signals.

Abstract: Perfluorocarbon emulsions having a high stability and good oxygen release are disclosed and described. These perfluorocarbon emulsions are typically for use as artificial oxygen carriers. The perfluorocarbon emulsions include a disperse phase of a perfluorocarbon and an emulsion stabilizer, and continuous phase. The emulsion stabilizer can primarily include a poly(ethylene oxide) block copolymer. These stabilized perfluorocarbon emulsions can be used in liquid and/or hydrogel phases of perfusion bioreactors or various other culture systems to enhance cell viability in thick tissue constructs, or as blood substitutes, although other applications may also be considered.

Abstract: Perfluorocarbon emulsions having a high stability and good oxygen release are disclosed and described. These perfluorocarbon emulsions are typically for use as artificial oxygen carriers. The perfluorocarbon emulsions include a disperse phase of a perfluorocarbon and an emulsion stabilizer, and continuous phase. The emulsion stabilizer can primarily include a poly(ethylene oxide) block copolymer. These stabilized perfluorocarbon emulsions can be used in liquid and/or hydrogel phases of perfusion bioreactors or various other culture systems to enhance cell viability in thick tissue constructs, or as blood substitutes, although other applications may also be considered.

Abstract: A flow through pressure regulator apparatus and method for directing a flow of fuel within a fuel system. Present invention includes a lower housing having a fuel inlet where fuel flows through the fuel inlet and communicates with a valve biasing member through a fuel chamber and lower valve element with fuel passages. The valve biasing member permits or inhibits fuel flow through a fuel chamber by opening and closing a ceramic valve element. The valve biasing member comprises a flat disk having at least two reticulated concentric rings coupled by at least one bridge. The fuel flows past an open valve element through the lower valve element fuel passages to the valve biasing member. The valve biasing member then diffuses the flow of fuel. A fuel cover directs the flow of fuel from the valve biasing member to the fuel outlet.

Abstract: A group table top videoconferencing device for communication between local participants and one or more remote participants provides a camera assembly and display screens on the same housing—giving the remote participant the perception that the local participant is making direct eye-to-eye contact with him/her. The housing is placed such that the housing is within the field of view of every local participant viewing any other local participant. Because, the remote participant is always within the field of view of the local participant, the remote participant does not get the feeling of non-intimacy during the videoconference. A wall mounted display operates in conjunction with the videoconferencing device to display media content received from the remote participants. Keypad and a touch screen provide user interface for controlling the operation of the videoconferencing device. Speakers convert audio signals received from the remote participants into sound.

Abstract: A transreceiver allows efficient operation in a full or half-duplex TDD or FDD system. The preferred transreceiver includes a common set of filters used for both FDD (Frequency Division Duplex) and TDD (Time Division Duplex) operation in a given range of frequencies thereby reducing circuitry count and implementation costs. Thus, the transreceiver of the present invention can operate in FDD operation or TDD operation.

Abstract: There is described zeolites containing releasably adsorbed nitric oxide, methods of preparing the zeolites, methods of releasing the nitric oxide into a solution or into air and uses of the zeolites in therapy.

Abstract: A disposable skin-worn device for the transdermal delivery at least one dose of charged therapeutic substances, including granisetron, by iontophoresis, the device comprising a donor reservoir containing an amount of a therapeutic substance to be delivered transdermally by iontophoresis, a counter reservoir, a source of electric power connected in a circuit between the donor reservoir and the counter reservoir and a control system for controlling current flow in the circuit to enable at least one dose of the therapeutic substance to be delivered transdermally by iontophoresis and wherein the control system includes a control element selected from the group consisting of a sensor activated by an external signal and a switch.

Abstract: An electrode assembly for use in an iontophoresis device for the transcutaneous administration of an active therapeutic species has a base layer of including a linking conductive base material which is consumed (oxidizes or reduces) preferentially to water, a first upper layer of sacrificial material coated on a first portion of the base layer wherein the sacrificial material is consumed preferentially to the linking conductive base material of the base layer. A second upper layer of non-conducting material is coated on a second portion of the base layer, the second upper layer being spaced from the first upper layer, connected by a narrow exposed linking area of the base layer material remaining exposed therebetween.

Abstract: The potential for substance abuse involving residual amounts of abusable substances remaining in used skin-worn patches is reduced by the provision of a system and method for combining the abusable substance with a separate anti-abuse substance agent as part of a removal or disposal procedure.

Abstract: Preferred embodiments of an air-fuel module include a manifold and a valve group subassembly. The manifold has a fuel supply passage, at least one air supply passage, and at least one power group subassembly defining a chamber in communication with the fuel supply passage and the at least one air supply passage. The fuel supply passage extends generally along a first axis. The at least one air supply passage extends between a common air inlet and respective air outlets along a second axis A2 generally orthogonal to the first axis. The valve group subassembly extends along a valve axis between a valve inlet and a valve outlet. The valve group subassembly is adapted to be inserted into the chamber through the respective air outlets. In an alternate embodiment, the power group subassembly is formed separately from the manifold so that the power group subassembly can be inserted into a recess formed in the manifold.

Abstract: An intake manifold (10) includes a fuel rail cavity (30) which receives a metallic fuel rail (14) enclosed by a molded fuel rail cavity cover (32). The fuel rail (14) communicates with each of a plurality of engine cylinders (16) through a fuel module (18). An injector cup (28) fits upon each module cylinder to provide an interface between the fuel module and the fuel rail. Another intake manifold (10) includes a fuel rail (14) which directly interfaces with each fuel module (18) through a bellows (38) attached directly thereto.

Abstract: A wrist toy is provided and includes an adjustable wrist band and an elastic band having a first end and an opposing second end. The first end is secured to the wrist band and a ball is coupled to the second end of the elastic band. An outer surface of the ball has a glow-in-the-dark material disposed thereon. The material is activated by radiant energy to glow-in-the-dark.

Abstract: An intake manifold (10) includes a fuel rail cavity (30) which receives a metallic fuel rail (14) enclosed by a molded fuel rail cavity cover (32). The fuel rail (14) communicates with each of a plurality of engine cylinders (16) through a fuel module (18). An injector cup (28) fits upon each module cylinder to provide an interface between the fuel module and the fuel rail. Another intake manifold (10) includes a fuel rail (14) which directly interfaces with each fuel module (18) through a bellows (38) attached directly thereto.

Abstract: A system and method for combining the downlink signals from at least two transceivers to increase the power of the downlink signal. In-phase down link signals from at least two transceivers are combined to produce a downlink output signal having an output power level greater than the power level of any single downlink signal. Detector means, which samples the downlink signals to identify a phase difference is coupled to control a phase controller which adjusts the phase of at least one of the downlink signals to be in step with the phase of the other downlink signal. The phase controller maintains the downlink signals in phase by shifting the phase of at least one of the downlink signals relative to the other.

Abstract: Apparatus and methods are provided for regulating the power consumption within a wireless communications mobile handset. A base station transmits an RF power output designating signal that indicates a desired level of the RF power output from the mobile handset. The mobile handset receives the RF power output designating signal, where it is used to set the level of the DC power supplied to the mobile handset. In this manner, the minimum amount of power necessary to maintain linear operation of the mobile handset is expended in the mobile handset. The DC power level is set by internally generating a control signal. The level of the control signal is dictated by the desired level of the RF power output as indicated by the received RF power output designating signal. The control signal is then applied to an RF amplifier circuit contained within the mobile handset to set the DC power level.

Abstract: A forward error correction (FEC) method is provided that operates in a multiple access format, such as, e.g., a Time Division Multiple Access (TDMA) format. An FEC transband central station and a plurality of FEC transband remote stations transmit data and corresponding error correction data therebetween during time frames. The time frames are divided into in-band time slots during which the traffic data is transmitted and out-of-band time slots during which the error correction data may be transmitted. The FEC transband remote stations that are assigned to the out-of-band time slots are efficiently and dynamically adjusted during communication.

Abstract: A forward error correction (FEC) method is provided including an FEC dynamic central station and a plurality of FEC dynamic remote stations that transmit bearer data and corresponding error correction data therebetween during a plurality of time frames. The error rate of the communication channel is measured and the amount of error correction data transmitted is accordingly and dynamically adjusted, so that the minimum amount of overhead required to effectively transmit the error correction data is used.