Abstract: The device, which has a modular structure, makes use of Bragg gratings for selecting, from a wavelength division multiplexed stream, a carrier to be inserted or extracted, and optical circulators for receiving the stream, for extracting and inserting the carriers and for sending the multiplexed stream to the output after the extraction and insertion of the carriers. The grating and the receiving-extracting circulator are located in a structural module which is replicated for all the channels to be extracted and inserted.

Abstract: An apparatus and method for efficiently performing error control coding tasks. An important aspect of the present invention is the provision of an ECC engine that responds to a specialized ECC instruction set having a plurality of instructions, such as a convolutional encoding instruction, a convolutional decoding instruction, and a cyclic redundancy code (CRC) instruction. The ECC engine has a plurality of functional building blocks (e.g., a configurable convolutional encoding functional block, a convolutional configurable decoding functional block, and a configurable cyclic redundancy check (CRC) functional block) that can be programmed or configured. A single instruction provided to the error control coding engine configures one of the functional blocks to execute a error control coding algorithm specified by the instruction. Each instruction also includes a plurality of fields that can be modified by the user.

Abstract: The assembly of a packaged opto-electronic module of a type that comprises an optical subassembly coupled to an LC housing integrally formed within the housing of the module typically results in the optical subassembly being disposed in a location having a gap between a heat sink region of the module and the optical subassembly thereby causing the disadvantage of inefficient heat removal from the optical subassembly. The present invention obviates or at least mitigates the above disadvantage by freeing the LC housing from the housing of the module thus enabling the optical subassembly to be disposed in thermal contact with the heat sink region of the module.

Abstract: The present invention is related to a terrestrial UMTS or equivalent terminal for the reception of broadcast and/or multicast information, comprising a reconfigurable baseband processor and an internal RF front-end for terrestrial reception, characterised in that said reconfigurable baseband processor is reconfigurable for terrestrial and satellite UMTS or equivalent reception and in that said terminal comprises a connector at intermediate frequency arranged to connect an external RF front-end for satellite UMTS reception.

Abstract: A light-emitting diode with which the LED chip will not be destroyed comprises an LED chip 40 mounted on plate-shaped wiring means 60 inside a light-emitting diode. Wiring means 60 comprises conductive paths 61 and 62 that electrically lead to a pair of opposing surfaces. The top surface is used for mounting the LED chip. Part of the conductive paths 61, 62 are connected electrically to LED chip 40, extending from the position where the LED is mounted to leads 21 and 22, to which they are connected by soldering. LED chip 40 is supported by being held inside concave part 23 in one lead 21 at this time.

Abstract: A platform for testing electronic parts and electrode used in the same for easy and accurate testing of a three-terminal device. The platform for testing electronic parts of the present invention comprises pressing means, DUT guide means, and electrode board. The pressing means presses DUT to the electrode board and maintains electrical and mechanical contact between the DUT terminals and the electrode groups. The DUT guide means hold the DUT while moving so that the relative position of the DUT to the electrode board is changed and the DUT moves between a plurality of specific positions. The electrode board has multiple electrode groups arranged corresponding to terminals of the DUT. The DUT is connected to test circuits corresponding to each of these electrode groups so that terminals of the DUT are connected to the corresponding test circuit when the DUT is placed at multiple specific positions on the above-mentioned electrode board.

Abstract: A wireless test fixture is disclosed for connecting printed circuit boards or other electrical interconnect devices having electronic components to a test system. Rigid support beams and insulating spacers are used to reduce the structural loads on the electrical interconnect plane and to minimize probe mounting plate deflections in the wireless test fixture. The test system electrical interface is via a series of floating transfer pins. The floating transfer pins provide electrical signal paths between test system interface probes and the electrical interconnect plane that interfaces with double-end sockets coupled to a probe for making electrical contact with the DUT. One or more fixed double-ended sockets and spring probes are used to make electrical contact with the DUT.

Abstract: The photoconductive switch comprises a laser that generates light having a first wavelength and a photoconductive switch element arranged to receive the light generated by the laser as incident light. The photoconductive switch element includes a photoconductive layer and a wavelength conversion element. The photoconductive layer has a low absorptivity at the first wavelength. The wavelength conversion element converts the incident light into activating light having a second wavelength at which the photoconductive layer has a greater absorptivity than at the first wavelength. The wavelength conversion element is integral with the photoconductive layer, or is in contact with the photoconductive layer, or is both integral with and in contact with the photoconductive layer.

Abstract: A source of ions for an analyzer includes a reservoir for containing a liquid and a channel having a first end opening into the reservoir. A nozzle element adjacent a second end of the channel includes a plurality of tips for producing individual droplets from the liquid. The plurality of tips reduces the likelihood that individual droplets will coalesce, increases the overall flow of material or analyte to the mass spectrometer and provides a level of redundancy in the delivery of liquid for producing droplets. The tips also may produce a higher current output and greater signal from the system, as well. With micro-miniaturization, the individual droplets are relatively small, thereby increasing the likelihood that ions would be ejected from the droplet surfaces under the influence of an electric field. Multiple nozzle elements can be used to more selectively deliver fluid droplets to the analyzer, or to increase the overall flow rate of droplets from the reservoir.

Abstract: Method and apparatus for rapid monitoring of pressure in a chamber equipped with a mass spectrometer by using the primary beam current in conjunction with a conventional pressure gauge. The conventional gauge allows frequent calibration of the relationship of the beam current to the chamber pressure, preventing excessive drift in the system. An advantage of the system is that it takes advantage of instruments already present in a typical spectrometry apparatus.

Abstract: A image-based system for inspecting objects utilizes an imaging chain that defines a focal plane, a manipulator for translating and rotating either the object under inspection or the imaging chain, a surface mapping system that generates a representation of the surface of the object under inspection, and a controller that uses the representation of the surface of the object to control the manipulator so that a portion of the object under inspection lies within the focal plane of the imaging chain.

Abstract: Vertical cavity surface emitting lasers (VCSELs) and methods of making the same are described. The VCSELs include reliability-enhancing layers that perform specific functions at one or more critical locations within a VCSEL structure to reduce or prevent defect formation and migration that otherwise might degrade VCSEL performance, for example, by increasing optical absorption in the mirror stacks or by degrading the electro-optic properties of the active region. In particular, the reliability-enhancing layers are configured to perform one or more of the following functions within the VCSEL structure: gettering (i.e., removing defects or impurities from critical regions), strain balancing (i.e., compensating the lattice mismatch in the structure to minimize strain), and defect suppression (i.e., creating alloys that reduce the formation of defects during growth or post-growth activities).

Abstract: An optical barrier made of tungsten (W) or titanium-tungsten (TiW). A layer of the optical barrier material is deposited over a transparent layer such as indium tin oxide (ITO). The optical barrier material is then patterned using photolithography processing steps and a dry etchant. The patterned optical barrier material acts as a light-shielding layer over a light-sensing device to form a dark reference device or dark pixel.

Abstract: A display device and a method for fabricating the display device. A display device according to the present invention is fabricated from an electrode layer that includes a plurality of electrodes on a substrate. The electrode layer is immersed in a solution of a first precursor polymer in a first solvent. The first precursor polymer includes a plurality of electrochemical polymerizable monomers. Each monomer has first and second polymer-forming active sites that can be joined by electrochemical polymerization and third and fourth polymer-forming active sites that can be joined chemically in solution. The first precursor polymer is soluble in the first solvent whereas a first polymer formed by electrochemical polymerization of the first and second polymer-forming active sites is insoluble in the first solvent.

Abstract: Volume flows of liquids in capillary tubes of chromatographic separation columns for analytical liquid measuring technology are controlled. The volume flows are derived from a liquid transport, i.e., pump arrangement, which transports a total flow to a flow splitter that divides the total flow into an excess flow in an excess path and a working flow in a working path. A controller for the working flow responds to at least one working sensor. The working sensor senses the mass flow rate of the working flow and/or the pressure in the working path which is coupled with the working sensor or the pressure differential in conduits for the excess and working flows.

Abstract: Adjustments are made to a displayed image in order to take into account user viewing angle. Brightness values for colors are stored within palette registers. In response to a user indicating a view angle change, brightness values stored in at least some of the palette registers are changed. As brightness values are increased, contrast between color shades is decreased.

Abstract: An arbiter allocates resources to a set of requesters. The arbiter includes vector assembly logic and sort logic. The vector assembly logic generates, for each arbitration round, an arbitration vector for each requester in the set of requesters. The sort logic receives the arbitration vectors generated by the vector assembly logic. Based on values of the arbitration vectors, the sort logic designates, for each arbitration round, a requester from the set of requesters as winner.

Abstract: A method and apparatus for displaying an eye diagram on an error performance analyzer are disclosed. A first bit sequence is received and compared with a second bit sequence, the first bit sequence and the second bit sequence being substantially similar. For each delay increment for an entire clock period a bit error rate (BER) curve is constructed. The BER curve is then used to locate the bit voltage or bit voltage spread for the 0-bit and the 1-bit for a particular delay. This is repeated a predetermined number of times to cover an entire period. Then, the bit voltages or bit voltage spreads are displayed as an eye diagram.

Abstract: A system is disclosed for enabling a user to specify a trigger condition of a signal or bus by enabling the user to graphically select the signal or bus from a hierarchically arranged list of signal or bus names. The user may make this selection from a graphical user interface of a signal measurement system. The user also graphically selects the signal trigger condition. A trigger-specification element identifying the trigger condition is visually associated with a displayed name of the first signal or bus. The user may select the signal trigger condition of the first signal or bus by selecting the first trigger-specification element. The signal measurement system may be a logic analyzer. The hierarchically arranged list may be vertically aligned and each signal or bus name may be visually associated with one of a first group of trigger-specification elements by horizontal alignment.

Abstract: A system is disclosed for displaying one or more lists of signal or bus identifiers on a graphical user interface of a logic analyzer. One of the lists is visually associated with one name of a list of signal or bus names. The system enables a user to graphically select one or more desired identifiers of the one or more lists of signal or bus identifiers. The selection of an identifier in a list visually associated with a name assigns a signal or bus identified by that identifier with the name. The lists of signal or bus identifiers may be visually associated with the signal or bus names by horizontal alignment.