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    • 3. 发明申请
    • GRAPHIC RENDERING QUALITY IMPROVEMENTS THROUGH AUTOMATED DATA TYPE PRECISION CONTROL
    • 通过自动数据类型精确控制的图形渲染质量改进
    • WO2016090535A1
    • 2016-06-16
    • PCT/CN2014/093296
    • 2014-12-08
    • INTEL CORPORATIONCHEN, FengYANG, YiCHEN, Xiaoming
    • CHEN, FengYANG, YiCHEN, Xiaoming
    • G06T15/10
    • G06T15/80G06F9/30014G06F9/3861G06T1/20G06T15/005
    • One or more system, apparatus, method, and computer readable media is described below for automated data type precision control capable of improving rendering quality on a graphics processor. Perceptible rendering quality is dependent at least in part on number format precision (e.g., FP16 or FP32) employed for shader program variables. In accordance with embodiments, shader variables implemented in lower precision data formats are tracked during shader compile to identify those that might trigger a floating point overflow and/or underflow exception. For shaders including one or more such variable, resources are provided to automatically monitor overflow and/or underflow exceptions during shader execution. In further embodiments, shader code is automatically re-generated based, at least in part, upon occurrences of such exceptions, and an increased number format precision specified for one or more of the tracked shader variables.
    • 下面描述一种或多种系统,装置,方法和计算机可读介质,用于能够改善图形处理器上的渲染质量的自动数据类型精度控制。 可感知的渲染质量至少部分取决于用于着色器程序变量的数字格式精度(例如,FP16或FP32)。 根据实施例,在着色器编译期间跟踪以较低精度数据格式实现的着色器变量,以识别那些可能触发浮点溢出和/或下溢异常的变量。 对于包括一个或多个此类变量的着色器,提供资源以在着色器执行期间自动监视溢出和/或下溢异常。 在另外的实施例中,着色器代码至少部分地基于这种异常的出现以及为一个或多个跟踪的着色器变量指定的增加的数字格式精度而自动重新生成。
    • 7. 发明申请
    • GNSS SIGNAL PROCESSING WITH REGIONAL AUGMENTATION NETWORK
    • GNSS信号处理与区域性补充网络
    • WO2011126605A2
    • 2011-10-13
    • PCT/US2011/024733
    • 2011-02-14
    • TRIMBLE NAVIGATION LIMITEDCHEN, XiaomingVOLLATH, UlrichFERGUSON, Kendall
    • CHEN, XiaomingVOLLATH, UlrichFERGUSON, Kendall
    • G01S19/13
    • G01S19/04G01S1/00G01S5/14G01S19/02G01S19/07G01S19/32G01S19/40G01S19/41G01S19/43G01S19/44
    • Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located within the region, the correction data comprising: the ionospheric delay over the region, the tropospheric delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located within a region are presented in which a GNSS receiver is operated to obtain multi- frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non- ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
    • 提出了用于处理从多频码和载波观测得到的GNSS数据的方法和装置,其使可用的校正数据由位于该区域内的流动站使用,校正数据包括:该区域的电离层延迟,对流层延迟 该区域,每个卫星的相位级几何校正以及每个卫星的至少一个码偏置。 在一些实施例中,校正数据包括每个卫星的电离层相位偏置。 提出了一种用于确定位于一个区域内的流动站的精确位置的方法和装置,其中操作GNSS接收器以获得多频码和载波观测和校正数据,以从校正数据中产生流动站校正,并确定一个 使用流动站观测和流动站校正确定流动站的位置。 校正数据包括每个卫星至少一个代码偏置,每个卫星的固定自然MW偏差和/或每个卫星可衍生固定自然MW偏差的值,以及每个卫星对于多个区域网络站的电离层延迟 和/或非电离层校正。 还提出了用于对包含校正数据的校正消息进行编码和解码的方法和装置,其中网络消息包括与网络的基本上所有站相关的网络元件,并且集群消息包括与网络的子集有关的集群元素。
    • 9. 发明申请
    • GNSS SIGNAL PROCESSING WITH REGIONAL AUGMENTATION POSITIONING
    • GNSS信号处理与区域定位
    • WO2011100680A2
    • 2011-08-18
    • PCT/US2011/024743
    • 2011-02-14
    • TRIMBLE NAVIGATION LIMITEDCHEN, XiaomingVOLLATH, UlrichFERGUSON, Kendall
    • CHEN, XiaomingVOLLATH, UlrichFERGUSON, Kendall
    • G01S19/40
    • G01S19/04G01S1/00G01S5/14G01S19/02G01S19/07G01S19/32G01S19/40G01S19/41G01S19/43G01S19/44
    • Methods and apparatus for processing of GNSS data derived from multi-frequency code and carrier observations are presented which make available correction data for use by a rover located withm the region, the correction data comprising: the ionospheric delay over the region, the tropospheπc delay over the region, the phase-leveled geometric correction per satellite, and the at least one code bias per satellite. In some embodiments the correction data includes an ionospheric phase bias per satellite. Methods and apparatus for determining a precise position of a rover located withm a region are presented in which a GNSS receiver is operated to obtain multi- frequency code and carrier observations and correction data, to create rover corrections from the correction data, and to determine a precise rover position using the rover observations and the rover corrections. The correction data comprises at least one code bias per satellite, a fixed-nature MW bias per satellite and/or values from which a fixed-nature MW bias per satellite is derivable, and an ionospheric delay per satellite for each of multiple regional network stations and/or non- ionospheric corrections. Methods and apparatus for encoding and decoding the correction messages containing correction data are also presented, in which network messages include network elements related to substantially all stations of the network and cluster messages include cluster elements related to subsets of the network.
    • 提出了用于处理从多频码和载波观测得到的GNSS数据的方法和装置,其使可用的校正数据由位于该区域的流动站使用,校正数据包括:该区域的电离层延迟,对流层延迟 该区域,每个卫星的相位级几何校正以及每个卫星的至少一个码偏置。 在一些实施例中,校正数据包括每个卫星的电离层相位偏置。 提出了一种用于确定位于一个区域的流动站的精确位置的方法和装置,其中操作GNSS接收器以获得多频码和载波观测和校正数据,以从校正数据中创建流动站校正,并且确定 使用流动站观测和流动站校正确定流动站的位置。 校正数据包括每个卫星至少一个代码偏置,每个卫星的固定自然MW偏差和/或每个卫星可衍生固定自然MW偏差的值,以及每个卫星对于多个区域网络站的电离层延迟 和/或非电离层校正。 还提出了用于对包含校正数据的校正消息进行编码和解码的方法和装置,其中网络消息包括与网络的基本上所有站相关的网络元件,并且集群消息包括与网络的子集有关的集群元素。