摘要:
A hybrid TOA positioning system can be implemented to improve location estimation of a wireless network device. An initial location of the wireless network device can be calculated based on locations of a plurality of reference network devices. A first intermediate location of the wireless network device and an intermediate distance calibration constant can be determined based, at least in part, on the initial location of the wireless network device and distance between the wireless network device and each of the reference network devices. A second intermediate location of the wireless network device and a target distance calibration constant can be calculated based on the locations of the reference network devices, the first intermediate location, and/or the intermediate distance calibration constant. The location of the wireless network device can be iteratively estimated based, at least in part, on the second intermediate location and the target distance calibration constant.
摘要:
Modem coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要:
The present disclosure discloses a method of displaying a cascading menu that includes a plurality of submenus. The method determines a first submenu as indicated for browsing by a user based on a clicking event of the user. When an operation interface of the first submenu is in a collapsed mode, a number of submenus that are currently in an expanded mode within an operation interface of the cascading menu is counted. When the number of submenus that are currently in the expanded mode reaches a defined threshold, at least a second submenu is selected from the submenus that are currently in the expanded mode, and an operation interface of the second submenu is shrunk. The operation interface of the first submenu is expanded. Therefore, a size of the operation interface of the cascading menu will not increase as the number of the expanded submenus increases. As such, the amount of a page space occupied by the cascading menu is reduced and utilization of the page space is improved. The present disclosure further discloses a terminal apparatus.
摘要:
A concatenated coded modulation communication system and method combines Trellis Coded Modulation with non-Gray code constellation mapping, interleaving, and non-binary Low Density Parity Check coded channel modulation with Gray code constellation mapping to improve error performance.
摘要:
Systems, apparatus and methods for determining a cyclic shift diversity (CSD) mode are presented. Examples use two different autocorrelations to determine a current CSD mode. Specifically, a delay-based autocorrelation and a cyclic shift-based autocorrelation are each computed then compared to each other, for example, by taking a difference of the two autocorrelations. A multipath signal leads to similar autocorrelations, where as a signal with a CSD mode enabled leads to dissimilar autocorrelations. By examining the number of peaks in the delay-based autocorrelation or the autocorrelation difference, a current CSD mode may be determined.
摘要:
Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
摘要:
The present invention discloses a debris collection device for cutting mechanism and an LCD panel cutting debris suction device. A debris collection device for cutting mechanism, wherein the debris collection device comprises a collection cap positioned behind the traveling direction of the cutting mechanism, and an air spray head positioned in front of the traveling direction of the cutting mechanism. The present invention can clear the debris produced in the LCD panel cutting process in time, and can reduce relevant defects such as line scratches, terminal scratches, short circuit, broken circuit, etc. which are generated because of debris. Thus, the yield and quality of products can be improved; the time of the subsequent cleaning process can be reduced; and the purposes of reducing risk, improving product yield and saving production cost can be achieved.
摘要:
A process for adsorptive desulfurization of gasoline or diesel oil or aromatics lower than C12 containing organic sulfide impurities, wherein these feedstocks contact an amorphous alloy adsorbent comprising nickel as a major active component in a fluidized bed reactor or a magnetic-stabilized fluidized bed reactor or a slurry bed reactor. There is only a single diffuse peak at 2θ=45° in the 2θ range from 20° to 80° in the X-ray diffraction (XRD) pattern of the adsorbent. The adsorbent consists of 50-95 wt % of nickel, 1-30 wt % of aluminum, 0-35 wt % of iron, and 0-10 wt % of one or more metals selected from copper, zinc, molybdenum, chromium, and cobalt.
摘要:
An amorphous alloy catalyst for hydrogenation and its preparation method are disclosed herein. The catalyst essentially consists of nickel ranging between 60 and 98 wt %, iron ranging between 0 and 20 wt %, one doping metal element selected from the group consisting of chromium, cobalt, molybdenum, manganese and tungsten ranging between 0 and 20 wt %, and aluminum ranging between 0.5 and 30 wt % based on the weight of said catalyst, wherein the weight percentages of iron and the doping metal element component may not be zero at the same time; and just one broad diffusion peak appears at about 2 &thgr;=45±1° on the XRD patterns of the catalyst within 2 &thgr; range from 20 to 80°. The catalyst herein can be used in processes for hydrogenation of unsaturated compounds such as olefin, alkyne, aromatics, nitro, carbonyl groups, nitrile and soon, and for hydrorefining of caprolactam in particular.
摘要:
A method for coating polyimide on liquid crystal display panel includes: (1) providing nozzles and a glass substrate; (2) tightly and regularly juxtaposing the nozzles in a row so that the row has a length that corresponds to width of the glass substrate; (3) vertically positioning the entire row above the glass substrate so as to correspond to the glass substrate along the width of the glass substrate; (4) simultaneously activating the nozzles to allow each of the nozzles to simultaneously drip down polyimide solution according to predetermined flow rate, while moving the glass substrate so as to have the polyimide solution uniformly applied to the glass substrate form a polyimide film; and (5) using a doctor blade to shape the polyimide film that is uniformly coated on the glass substrate so as to provide a regular and flat surface of the polyimide film on the glass substrate.