Abstract: Various embodiments of the present disclosure are directed towards a semiconductor device. The semiconductor device comprises a source region and a drain region in a substrate and laterally spaced. A gate stack is over the substrate and between the source region and the drain region. The drain region includes two or more first doped regions having a first doping type in the substrate. The drain region further includes one or more second doped regions in the substrate. The first doped regions have a greater concentration of first doping type dopants than the second doped regions, and each of the second doped regions is disposed laterally between two neighboring first doped regions.

Abstract: Various embodiments of the present disclosure are directed towards a semiconductor device. The semiconductor device comprises a source region and a drain region in a substrate and laterally spaced. A gate stack is over the substrate and between the source region and the drain region. The drain region includes two or more first doped regions having a first doping type in the substrate. The drain region further includes one or more second doped regions in the substrate. The first doped regions have a greater concentration of first doping type dopants than the second doped regions, and each of the second doped regions is disposed laterally between two neighboring first doped regions.

Abstract: The present invention discloses an RF element group testing system and method. The method comprises steps: adding an identification feature to a first RF signal, which is output by one of the plurality of tested RF elements, to generate an identification RF signal; synthesizing the identification RF signal and a second RF signal, which is output by each of the rest of the tested RF elements, to generate a corresponding synthesis signal; resolving the synthesis signal into the identification RF signal and the corresponding second RF signal according to the identification feature; restoring the identification RF signal into the first RF signal; and calculating at least one signal-feature parameter of the first RF signal and the second RF signal.

Abstract: The method includes a data collection step, a setup step, a positioning step, an analysis step, and an adjustment step. The data collection step collects spatial data about a scene to be monitored. The setup step installs a number of monitoring devices and a reference device, where the reference device includes a reflector or a calibration pattern. The positioning step determines respective positions of the monitoring devices relative to the reference device. The analysis step determines whether the FOVs of the monitoring devices jointly cover the scene by an algorithm module analyzing the scene data, the FOVs of the monitoring devices, and the relative positions of the monitoring devices against the reference device. The adjustment step provides suggestions about adding one or more monitoring devices or changing positions of the monitoring devices to cover the scene entirely if the FOVs of the monitoring devices do not cover the scene.

Abstract: An image capturing and depth alignment method includes radar scanning step, image capturing step, translation and synchronization step, alignment step, client detection step, client positioning step, scene map construction step, view image transmitting step, view image processing step, virtual object placement step. through translating, synchronizing, and aligning the radar scanning step's 3D point cloud map and the image capturing step's planar image of the scene, the back-end server therefore obtains surveillance information with both image and depth. Then, through positioning, multiply superimposing, image rotation and matching, speed comparison, uniformization of coordinate systems, and display through the smart glasses, a wearer of the smart glasses may be positioned and tracked in the scene. The wearer may also be instructed to reach a specific target or place of a specific object.

Abstract: An image capturing and depth alignment method includes radar scanning step, image capturing step, translation and synchronization step, alignment step, client detection step, client positioning step, scene map construction step, view image transmitting step, view image processing step, virtual object placement step. through translating, synchronizing, and aligning the radar scanning step's 3D point cloud map and the image capturing step's planar image of the scene, the back-end server therefore obtains surveillance information with both image and depth. Then, through positioning, multiply superimposing, image rotation and matching, speed comparison, uniformization of coordinate systems, and display through the smart glasses, a wearer of the smart glasses may be positioned and tracked in the scene. The wearer may also be instructed to reach a specific target or place of a specific object.

Abstract: A method for product service system classification and service transformation is provided. In the method, analysis data of multiple product service systems (PSSs) is collected and accordingly multiple condition attributes of the PSSs are defined and used to establish a classification decision table. Then, reducts of the condition attributes are induced from the classification decision table through a rough set theory algorithm and accordingly multiple candidate decision rules are generated. The candidate decision rules are validated by using the analysis data to generate final decision rules. The final decision rules are applied to determine a current type of the PSS of a target firm. Core competences of the target film are analyzed to determine a recommend type of the PSS for the future. Finally, a transformation recommendation for the service of the target firm is provided according to differences between the condition attributes of the recommend type and the current type.

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may transmit a first calibration packet at a first power level. The wireless device may determine a power measurement corresponding to the first calibration packet based at least in part on feedback associated with a transmit power output of the first calibration packet. The wireless device may compare the power measurement corresponding to the first calibration packet to a target power level associated with the first power level. Additionally, the wireless device may adjust one or more gain parameters associated with the first power level based at least in part on the comparing.

Abstract: A technique for reducing the dwell time in acquiring a satellite signal is provided. The technique minimizes the dwell time in searching for a satellite signal in cells of a search space by comparing the peak-power-to-average ratio (PAPR) to one or more thresholds at one or more intermediate points during the search in a code phase/Doppler frequency bin. The comparison is then used to determine whether to continue the search in a current code phase/Doppler frequency bin or to continue to the next code phase/Doppler frequency bin.

Abstract: A technique for reducing the dwell time in acquiring a satellite signal is provided. The technique minimizes the dwell time in searching for a satellite signal in cells of a search space by comparing the peak-power-to-average ratio (PAPR) to one or more thresholds at one or more intermediate points during the search in a code phase/Doppler frequency bin. The comparison is then used to determine whether to continue the search in a current code phase/Doppler frequency bin or to continue to the next code phase/Doppler frequency bin.

Abstract: Scattered pilots are used to estimate the integer frequency offset and OFDM symbol index simultaneously. A cross-correlation between IFFT outputs of received samples with different spectral shift and OFDM symbol index is used to identify the channel impulse response. Upon determination of the channel impulse, the estimated integer frequency offset and OFDM symbol index can then be determined.

Abstract: This disclosure is directed to systems and methods for positioning a FFT window using the noise power that is related to ISI By selecting a FFT window position that minimizes the noise power, ISI is reduced or eliminated The techniques can be used in coherent and non-coherent systems Further, noise associated with the Doppler effect is compensated for, allowing the use of these system and methods in time-varying environments, such as mobile applications.

Abstract: An apparatus and method in a multiple sub-carrier digital communication receiver for reducing inter-channel interference (ICI) includes a channel estimation block for calculating channel estimates, an interpolation block for calculating interpolated channel estimates, and an ICI reduction block for calculating ICI reduced receive symbols. Channel estimates are calculated based on receive symbols or ICI reduced receive symbols using pre-determined transmit symbols. Interpolated channel estimates are calculated by Wiener filter interpolation of a set of channel estimates. ICI estimates are calculated based on a set of interpolated channel estimates and either receive symbols or ICI reduced receive symbols. ICI reduced receive symbols are generated by subtracting ICI estimates from receive symbols.

Abstract: A method and apparatus in a multiple sub-carrier digital communication receiver estimates a Doppler frequency bandwidth. The Doppler frequency bandwidth is estimated by comparing a first set of channel estimates to a second set of channel estimates generated by Wiener filter interpolation of the first set of channel estimates. The Wiener interpolation filter coefficients are generated for various Doppler frequency bandwidths. Pre-determined transmit pilot symbols may be used to generate the first set of channel estimates in an OFDM communication system. A set of Wiener filter interpolation errors may be generated at one or more sub-carrier frequencies, for each of the different Doppler frequency bandwidths, and averaged across time and/or frequency. The Doppler frequency estimation method and apparatus may select a Doppler frequency estimate based on the set of Wiener filter interpolation errors.

Abstract: A method and apparatus in a multiple sub-carrier digital communication receiver that estimates a communication channel. A second set of channel estimates are generated based on a Wiener filter interpolation of a first set of channel estimates. Pre-determined transmit pilot symbols may be used to generate the first set of channel estimates in an OFDM communication system. The coefficients of the Wiener interpolation filter are based on a channel impulse response estimate that includes two or more narrow regions of non-zero amplitude separated by one or more wide regions of essentially zero amplitude. The Wiener interpolation filter coefficients are also based on a Doppler frequency estimate. The Doppler frequency estimate may be determined from the first set of channel estimates, while the Wiener interpolation filter coefficients may be generated from a pre-determined set of channel impulse responses.