Abstract: Disclosed is an apparatus and method for selecting wide area network resources, such as resources identified by URL values, using a rotary knob for user input. A client device having a display and a rotary knob is used for accessing network resources via a public network using an application program, such as a browser application. Rotation of the knob is detected by the client device, which adjusts the contents of a previewing window according to the rotation of the knob. The previewing window identifies graphics corresponding to predefined network resources and the graphics are output in a preview area of the display on the client device. As the user rotates the knob, the graphics for the network resources in the preview window are scrolled through the preview area of the display under control of the knob. The preview area includes a selection frame for selecting a network resource.

Abstract: A hybrid Raman-EDFA provides gain equalization over the C-band and L-band. The hybrid Raman-EDFA includes a Raman section producing a Raman gain and an EDFA section producing an EDFA gain complimenting the Raman gain. The EDFA section preferably includes a highly inverted, single-stage EDFA to produce the complimenting EDFA gain shape. One embodiment of the EDFA section includes a high return loss termination located after the erbium fiber to receive unabsorbed pump power. Multiple hybrid Raman-EDFAs can be connected in an amplifier chain in a transmission system. The transmission system preferably provides a dispersion map including regular composite fiber spans followed by at least one compensating span of negative dispersion fibers. The Raman sections of the hybrid Raman-EDFAs are preferably coupled to negative dispersion fiber in the transmission system.

Abstract: A system for reducing pollutants in internal combustion engine emissions, particularly marine electric generator engines, includes a treatment chamber having an intake opening for receiving gaseous emissions from the engine, and an exhaust opening for exiting emissions. A perforated metal tube is disposed within the treatment chamber, and an electrode is disposed within the metal tube in spaced apart relation to the metal tube. The electrode is encircled by the metal tube so that, upon applying a voltage at a predetermined frequency to the electrode, an arc is generated across the space between the electrode and the metal tube to promote a chemical reaction reducing the concentration of pollutants. The treatment chamber is contained within a manifold, and cooled by a flow of water. A supplemental air source is connected to the treatment chamber, and a chemical substrate is disposed within the treatment chamber for promoting the chemical reaction.

Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.

Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally nonprotruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.

Abstract: A measurement probe is carried by a carriage movable in a first direction to cause the measurement probe to traverse a measurement path across a surface of an object received by a support surface to provide measurement data representing variations in a second direction different from the first direction of surface features along the measurement path. The support surface is movable in a third direction different from the first and second directions. Measurement of a surface area is effected by controlling the carriage to cause the measurement probe to traverse a plurality of measurement paths across an area of the surface of an object mounted on the support surface and by controlling the support surface to move in the third direction after each measurement path traverse. Measurement data thus obtained for a reference sphere of previously known radius is used to determine the relative orientation of the first and third directions.

Abstract: An optoelectronic component has a lens that is formed in the surface of an encapsulant surrounding a semiconductor diode element. With respect to emitters, the lens reduces internal reflection and reduces dispersion to increase overall efficiency. With respect to detectors, the lens focuses photons on the active area of the detector, increasing detector sensitivity, which allows a detector having a reduced size and reduced cost for a given application. The lens portion of the encapsulant is generally non-protruding from the surrounding portions of the encapsulant reducing contact surface pressure caused by the optoelectronic component. This non-protruding lens is particularly useful in pulse oximetry sensor applications. The lens is advantageously formed with a contoured-tip ejector pin incorporated into the encapsulant transfer mold, and the lens shape facilitates mold release.

Abstract: A test apparatus includes a broadband noise source, a test station, and a spectrum analyzer. A method using the test apparatus to measure the spectral gain of an erbium doped fiber amplifier (EDFA) under test includes steps of providing an optical signal from a broadband noise source to an input of the EDFA under test, measuring a power at a test wavelength at an output of the EDFA under test, adjusting the test wavelength, and repeating the steps of measuring and adjusting for a predetermined number of times.

Abstract: A measurement probe (8) is carried by a carriage (7) movable in a first direction (X) to cause the measurement probe (8) to traverse a measurement path across a surface of an object (RS) received by a support surface (4) to provide measurement data representing variations in a second direction (Z) different from the first direction of surface features along the measurement path. The support surface (4) is movable in a third direction (Y) different from the first and second directions. Measurement of a surface area is effected by controlling the carriage (7) to cause the measurement probe to traverse a plurality of measurement paths across an area of the surface of an object mounted on the support surface and by controlling the support surface (4) to move in said third direction after each measurement path traverse. Measurement data thus obtained for a reference sphere of previously known radius is used to determine the relative orientation of the first and third directions.

Abstract: A method and apparatus for searching for multimedia files in a distributed database and for displaying results of the search based on the context and content of the multimedia files.

Abstract: A nominally cylindrical surface of a workpiece is sensed by a stylus displaceable radially of an axis of rotation of the surface relative to a support column defining a reference datum so that the stylus follows the cylindrical surface at a given height along the surface. Relative rotation of the workpiece and the stylus about the axis of rotation of the surface is effected and the displacement of the stylus used to determine information relating to the radial form of the surface at that height. These measurements are represented at different heights along the surface so as to determine its cylindrical form. The displacement of the stylus from a given position on the surface at each height before and after rotation of the stylus and workpiece through 180° are measured and the resulting measurements used to compensate for any error or deviation in the reference datum.

Abstract: A method and apparatus for searching for multimedia files in a distributed database and for displaying results of the search based on the context and content of the multimedia files.

Abstract: A photodiode has integrated shields for the rejection of noise-producing electromagnetic interference and ambient light. The electromagnetic shield forms a conductive matrix which covers the photodiode active area. The matrix is deposited as a metallization layer onto the photodiode and provides exposed portions of the active area for light detection. A pad is electrically connected to the shield to allow external termination of the shield. The ambient-light shield is in the form of a colored encapsulant surrounding the photodiode. The encapsulant provides a high-pass light transmission characteristic which passes signal light and rejects out-of-band ambient light. The photodiode is particularly advantageous for use in pulse oximetry probes.

Abstract: A sensor switch located in a patient cable adapts an incompatible sensor to a monitor in a pulse oximetry system. The sensor switch is particularly suited to adapting sensors to a monitor that utilizes an open-circuit detector to determine a no-sensor condition. A compatible sensor short-circuits the inputs to the open-circuit detector to indicate sensor presence. An incompatible sensor has such no short-circuit feature and fails to work on such a monitor. An incompatible sensor attached to a sensor connector at one end of the patient cable, however, actuates the sensor switch. The sensor switch, in turn, short-circuits the open-circuit detector inputs when the monitor is attached to a monitor connector at the opposite end of the patient cable. Thus, the sensor switch simulates the presence of a compatible sensor to the monitor.

Abstract: A sensor switch located in a patient cable adapts an incompatible sensor to a monitor in a pulse oximetry system. The sensor switch is particularly suited to adapting sensors to a monitor that utilizes an open-circuit detector to determine a no-sensor condition. A compatible sensor short-circuits the inputs to the open-circuit detector to indicate sensor presence. An incompatible sensor has such no short-circuit feature and fails to work on such a monitor. An incompatible sensor attached to a sensor connector at one end of the patient cable, however, actuates the sensor switch. The sensor switch, in turn, short-circuits the open-circuit detector inputs when the monitor is attached to a monitor connector at the opposite end of the patient cable. Thus, the sensor switch simulates the presence of a compatible sensor to the monitor.

Abstract: An improved music generation system that facilitates artistic expression by non-musician and musician performers in both individual and group performance contexts. Mappings are provided between 1) gestures of a performer as indicated by manipulation of a user input device, 2) displayed motion of a graphic object, and 3) global features of a musical segment. The displayed motions and global features are selected so as to reinforce the appearance of causation between the performer's gestures and the produced musical effects and thereby assist the performer in refining his or her musical expression. The displayed motion is isomorphically coherent with the musical segment in order to achieve the appearance of causation. The global features are segment characteristics perceivable to human listeners. Control at the global feature level in combination with isomorphic visual feedback provides advantages to both non-musicians and musicians in producing artistic effect.

Abstract: An electrical connector for a medical instrument has a plug containing a plurality of pins in electrical communication with wires emanating from a shielded cable that is connected to a medical sensor detecting physiological data. The plug portion of the electrical connector substantially surrounds the connection of the pins with the cable in a plastic housing. When the plug is inserted in to a socket portion of the connector mounted to a medical instrument housing, the pins electrically communicate with a plurality of tubular sockets to communicate the signals to electronic devices in a medical instrument. Surface coatings on the connector are provided to shield the wire connections with the pins and tubular sockets from electromagnetic interference (EMI). A tubular shield is also provided in the medical instrument to shield the electrical connection between the internal cable and the tubular receptacles from EMI.

Abstract: The manufacture of the electronics component of the probe is simplified by using an integral lead frame on which is mounted all of the passive and active elements so that the entire electronics module can be assembled independent of the housing in a simplified form prior to integration into the housing. The lead frame provides not only the electrical interconnections but the support and positioning of the various light emitting elements that comprise the electronics of the probe. The remaining segment of the manufacturing process is simplified since the workers do not have to assemble multiple diverse elements to create the device housing. The light reflecting and lens assemblies lock together and enclose an epoxy material which encapsulates the electronics elements and provides improved optical transmissivity of the generated light.

Abstract: A system for displaying a sequential stream of information on a single display. The system includes a computer for defining an first area on the display and for displaying a first sample of the information within the first area. The first sample represents a first segment of the information. The computer further is for displaying a second sample of the information within the first area of the display. The second sample represents a second segment of the information. The computer is further for displaying a third sample of the information within the first area of the display. The third sample represents a third segment of the information. The first segment includes the second segment and the third segment.

Abstract: A method and apparatus for generating and observing a transition between a first and second sequence of information. The invention is practiced on a computer controlled display system and a computer controlled sound generation system. The method includes providing the first stream and the second stream of information to the computer system; creating a template for modifying an audio signal during a transition from the first stream of information to the second stream of information; specifying the duration of the transition and specifying at least a portion of the first stream and a portion of the second stream for the transition; creating an audio transition using the audio template for modifying an audio signal and using the portion of the first stream and the portion of second stream.