Abstract: An optical device for sensing a presence of an analyte in a person is provided. The optical device includes a light source, an optical stack, and a reader. The light source emits a first light having a first wavelength. The optical stack is placed on a skin of the person. The optical stack includes a sensor material and an optical filter. The sensor material emits a second light having a second wavelength when irradiated with the first light. An optical property of the second light is sensitive to the presence of the analyte. The optical filter is disposed on the sensor material and includes a plurality of microlayers numbering at least 10 in total. The optical filter has different first and second transmittances at the respective first and second wavelengths.

Abstract: A coating composition for providing anti-corrosive, wear-resistance, and sound dampening properties to plastic and metallic substrates. The composition comprises at least one functionalized resin and at least one dry lubricant in a solvent comprising a ketone, and can further comprise at least one of a cross-linking agent, a cross-linking catalyst, a co-solvent, and a colorant. Some compositions comprise multiple ketones and/or multiple dry lubricants, and can be formulated and applied to a substrate without producing hydrogen gas. Substrates coated with the coating composition can include metal components, particularly springs, washers, and other elements, within the liftgate support struts in a van, SUV, or other hatchback vehicle.

Abstract: Techniques for presenting content download progress include determining a plurality of layers of information about a specific download of particular content to an apparatus. The information in the plurality of layers is different from an amount of the particular content. The particular content is caused to be stored progressively into a memory on the apparatus. A first layer of information is presented on the local device upon a start of the specific download. An amount of the particular content stored into the memory is determined. A different second layer of information is presented progressively on the local device during the specific download based on the amount of the particular content stored into the memory.

Abstract: According to the present invention there is provided a method of analysis of the audience for channels selectable by a channel selector device for presentation on a presentation device, the channel selector device providing data indicating which channels are selected and the lengths of time for which selected channels remain selected. The data relating to the lengths of time for which channels remain selected is subject to a capping procedure, whereby the indicated length of time for which a channel remains selected is reduced to a capped maximum permitted length of time if the indicated length of time exceeds the maximum permitted length, to provide capped data.

Abstract: A system for identifying a program stream being displayed at a receiver location comprises means at a central station for measuring the relative luminance of a plurality of predetermined areas in each frame and recording that data with their times of occurrence for each of a plurality of program streams as reference data, and means at a receiver location to measure the relative luminance of the same areas but at a repetition rate less than that at the central station for a given time after a channel change and thereafter at an even lower repetition rate and storing the measurements at the receiver location with times defining corresponding broadcast times, and means for transmitting the stored data to the central station for correlating the measured and reference data using the recorded times to access the corresponding measured values of the recorded and reference data.

Abstract: A fractional-N type frequency synthesizer has a voltage controlled oscillator controlled in a phase-locked loop by a divide by N divider and a phase comparator responsive to the divided frequency and to a reference frequency Fr. An accumulator is responsive to the desired fractional part of the N and is clocked by Fr to produce carry signals for producing the required periodic variations in N. A second accumulator produces periodic equal and opposite further variations in N to reduce the magnitude of the error waveform which would be given to the phase-detector output by the variations in n caused by the first accumulator. A digital to analog converter and a differentiating circuit produce a jitter correction signal for reducing residual jitter. A coherent detector detects for the presence of any residual jitter at the control input of the VCO and resulting from the fractional-N control circuit.

Abstract: An automatic gain control (AGC) circuit arrangement is disclosed as including an AGC loop responsive to an input signal and operative to maintain an output signal at a desired mean level represented by a reference signal applied in the loop and also subjected to amplitude modulation by an AF signal. The circuit arrangement includes modulators outside the loop for changing the level of the input signal by amounts corresponding respectively to changes in level represented by changes in the AF signal and by changes in the reference signal. Therefore, the level of the input signal as received by the AGC loop is at least approximately at the right value and its gain is held substantially constant even when the level of the required output signal for a given input signal changes. Therefore, variations of bandwidth resulting from gain variations are avoided.