Abstract: Following transmission of a watermarked audio signal over an acoustic path causing echoes, reverberation and/or noise, watermark detection correlation result peak values are concentrated within a limited temporal range around main correlation result peaks, which limited temporal range is much smaller than the total correlation length. The watermark detection is based on the following: given np correlation result peak values v=(v1, v2, . . . , vnp) in an average or expected probability distribution for correlation result values for unmarked content, the probability is calculated that within windows covering the limited temporal range there are np or more values from a correlation result value set greater than or equal to these peaks v.

Abstract: Techniques related to graphics rendering are discussed. Such techniques may include predicting primitive intersection information for tiles of a frame, rendering the frame on a tile-by-tile basis based on the predicted primitive intersection information, and re-rendering any tiles with predicted primitive errors.

Abstract: Methods and apparatus are described for determining position of a rover antenna, comprising: obtaining rover GNSS data derived from code observations and carrier phase observations of GNSS signals of multiple satellites over multiple epochs, obtaining precise satellite data for the satellites, determining a virtual base station location, generating epochs of synthesized base station data using at least the precise satellite data and the virtual base station location, and applying a differential process to at least the rover GNSS data and the synthesized base station data to determine at least rover antenna positions.

Abstract: A rapid preparation method of high-quality hot water, includes steps of: a) calculating a temperature difference between an inlet water temperature and an predetermined outlet water temperature, determining an adjacent heating power pair from heating curves of the pipeline heater according to the temperature difference and a predetermined flow rate, wherein the heating power pair is corresponding to one of time points in a slow nonlinear heating area K, then selecting the heating power pair for preparing to heat water in the pipeline heater; and b) inputting the water with the predetermined flow rate into the pipeline heater, heating with one of the heating power pair selected in the step a) in such a manner that the water in the pipeline heater is heated according to the K area of the pipeline heater, obtaining the water with the target water temperature from an outlet.

Abstract: The invention relates to generating regional tropospheric correction information for correcting observations useful for estimating phase ambiguities and/or a position of global or regional navigation satellite systems (NSS) receiver(s). For each of a plurality of reference stations, at least one troposphere correction parameter is estimated by evaluating NSS observation equations using i) precise satellite information or the information derived from the precise satellite information, and ii) received multiple-frequency-signals-based raw observations or a linear combination thereof. The regional tropospheric correction information is then generated based on the estimated troposphere correction parameter(s) per reference station, the tropospheric correction information comprising a regional tropospheric delay function(s) and coefficients representing a tropospheric delay affecting a NSS signal passing through the troposphere in a region of interest.

Abstract: Methods and apparatus for processing of GNSS signals are presented. These include GNSS processing with predicted precise clocks, GNSS processing with mixed-quality data, GNSS processing with time-sequence maintenance, GNSS processing with reduction of position jumps in low-latency solutions, GNSS processing with position blending to bridge reference station changes, and GNSS processing with delta-phase correction for incorrect starting position.

Abstract: Accuracy information for an ionosphere model is generated. Phase residual information of a parameter estimation procedure is obtained and coordinates of pierce points are computed on a sphere around the earth. The coordinates indicate where signals pierce the sphere. Phase residual information is mapped for each pierce point. A grid of equidistant points is put on the sphere and the pierce points are identified. For each selected grid point, vertical accuracy information is computed based on vertical residual information, and a scale factor is computed based on the vertical accuracy information. The accuracy information for the ionosphere model is generated based on the vertical accuracy information computed for the selected grid points and an overall scale factor computed based on computed scale factors.

Abstract: Audio watermarking is the process of embedding watermark information items into an audio signal in an in-audible manner. In a first embodiment, in case the original audio signal has parts of low signal energy, an alternative signal having a level or strength given by the psycho-acoustic model is combined with the original audio signal. The combined signal is watermarked with watermark data to be embedded. In a second embodiment, in case the original audio signal has parts of low signal energy, an alternative signal having a level or strength given by the psycho-acoustic model is watermarked with watermark data to be embedded, and the audio signal is watermarked with the watermark data to be embedded. The watermarked alternative signal is combined with the watermarked audio signal.

Abstract: The invention relates to generating correction information to be used to correct observations coming from a navigation satellite system (NSS) receiver in a region of interest. For each of a plurality of reference stations in said region, raw observations obtained by the reference station observing NSS multiple-frequency signals from a plurality of satellites over multiple epochs are received. Then, precise satellite information on the orbit position, clock offset, and biases of each satellite is obtained. For each reference station, ambiguities in the carrier phase of the received raw observations are estimated, using the precise satellite information and the position coordinates of the reference station. Geometric-free phase linear combination values are then computed based on the received raw observations together with the estimated ambiguities. The correction information is generated based on the computed geometric-free phase linear combination values.

Abstract: A challenge of audio watermarking systems in which an acoustic path is involved is the robustness against microphone pickup in case of surrounding noise. The strength of phase-based watermarking is increased by determining a masking threshold for a current frequency bin in a frequency/phase representation changing the phase based on that masking threshold and an allowed phase change value, calculating an allowed magnitude change value for the current frequency bin and calculating from an audio quality level value a magnitude change scaling factor for the magnitude change value, and increasing its magnitude accordingly.

Abstract: A nuclear core component hold-down assembly includes a hollow spring guide in which an instrumentation insertion channel is formed; a base plate which has a center hole formed through a center thereof, and several water flow holes formed around the center hole; a lower end of the spring guide connecting and mating with an upper end of the base plate, the instrumentation insertion channel communicating with the center hole, and the base plate locating above the adapter plate and pressing against it directly; a hold-down bar slidably mounted on an upper end of the spring guide and locating above the base plate; and a spring element configured between the hold-down bar and the base plate, by which the hold-down bar pushes the base plate to cause the base plate to press against the adapter plate. The structure is stable and reliable.

Abstract: A power distribution system is connected to a first power supply, a second power supply and an energy storage unit. The power distribution system includes: a selection switch, its movable terminal being connected to a load and selectively being electrically connected to its first fixed terminal; a first converter, its first terminal being electrically connected to the second power supply; a second converter, its first terminal being electrically connected to a second terminal of the first converter and electrically connected to the energy storage unit; a first switch, its first terminal being electrically connected to a second terminal of the second converter, and its second terminal being electrically connected to the first fixed terminal of the selection switch; and a second switch, its first terminal being electrically connected to the second terminal of the first switch, and its second terminal being electrically connected to the first power supply.

Abstract: A computing system includes technologies for providing trusted predictive analytics services. The computing system provides a common description language for predictive analytics services, and uses cryptographic techniques and digital rights management techniques to protect input data and/or portions of the predictive analytics services.

Abstract: The present disclosure provides a power supply system and a power conversion device. The power conversion device is used for converting electric energy outputted by a power supply module, and the power conversion device includes an electric energy conversion module and a switching module. The electric energy conversion module is configured to convert the electric energy output from the power supply module into a single-phase two-wire output or a single-phase three-wire output, and includes a half-bridge circuit, a bridge conversion circuit and a neutral line. The switching module is coupled with the electric energy conversion module, and is configured to control the electric energy conversion module to provide the single-phase two-wire output or single-phase three-wire output. The present disclosure can apply to a scenario where the requirements of a grid-connected operation and a standalone operation are different.

Abstract: The present invention relates to a polythiophene electrochromic material, which is a copolymer of [3,4-bis(2-ethylhexyloxy)thiophene]-thiophene-[3,4-dimethoxy thiophene] represented by Formula I: wherein, 0<n?0.5m, 0<q<m. The copolymer film has changeable colors reversibly varying between red and transparent, cycle life of more than 10,000. It has many advantages, such as low driving voltage, being transparent in the oxidation state with high transmittance, short response time, and being suitable for spray coating operation and the like, thus it has broad application prospect in the devices of electrochromic windows, electrochromic displays and the like.

Abstract: Improvement of water-mark detection in watermarked microphone audio signals picked up in the presence of surrounding noise is achieved by using at encoder side not only the originally received signal for the calculation of the masking threshold and the watermarking strength, but by also taking into account the level of the surrounding noise. This enables an adaptation of the watermarking strength to the current sound pressure level SPL of the surrounding noise. If the SPL of the surrounding noise is increased, the watermarking strength will be increased accordingly. The resulting advantage is a significantly improved audio watermark detection in the presence of surrounding noise.

Abstract: A sub-frame assembly supports a pair of wheels on a vehicle. The base may be an extrusion having a matrix of panels extending in a vertical direction. The sub-frame assembly has control arm brackets disposed on opposing ends of the base and attachment towers extending above the brackets providing attachment points to connect portions of an independent suspension to the vehicle and support a pair of wheels. The base, control brackets and attachment towers may be individual modular pieces. Left and right hand control brackets and attachment towers may be provided by respective unitary support pieces attached to opposing ends of the base. The unitary support pieces may be extrusions having panels extending in a transverse direction, nonaxial to the base. The base, control arm brackets and attachment towers, alternatively, may be provided by a single unitary extrusion having a matrix of panels extending in a transverse direction.

Abstract: In watermark symbol detection for watermarked audio signals a correlation and statistical detection is used, which is computationally complex. Therefore a downsampling can be used prior to the correlation. However, if the watermarked audio signals are transmitted over an acoustic path, without downsampling the detection rate is considerably higher than the detection rate when including downsampling of the correlation input signals. There is a trade-off between calculation complexity and detection robustness. According to the invention, an interpolation of the correlation result values is carried out for input to the statistical detector, in order to approximate the detection robustness of correlation without downsampling.

Abstract: A sub-frame assembly for supporting a pair of wheels on a vehicle. The base may be an extrusion having a matrix of panels extending in a vertical direction. The sub-frame assembly has control arm brackets disposed on opposing ends of the base and attachment towers extending above the brackets providing attachment points to connect portions of an independent suspension to the vehicle and support a pair of wheels. The base, control brackets and attachment towers may be individual modular pieces. Left and right hand control brackets and attachment towers may be provided by respective unitary support pieces attached to opposing ends of the base. The unitary support pieces may be extrusions having panels extending in a transverse direction, nonaxial to the base. The base, control arm brackets and attachment towers, alternatively, may be provided by a single unitary extrusion having a matrix of panels extending in a transverse direction.

Abstract: Techniques related to graphics rendering are discussed. Such techniques may include predicting primitive intersection information for tiles of a frame, rendering the frame on a tile-by-tile basis based on the predicted primitive intersection information, and re-rendering any tiles with predicted primitive errors.