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1. 发明授权

US09058672B2 Using a pixel offset for evaluating a plane equation 有权
标题翻译：使用像素偏移来评估平面方程
公开(公告)号：US09058672B2
公开(公告)日：2015-06-16
申请号：US12898537
申请日：2010-10-05
申请人： John Erik Lindholm , Henry Packard Moreton , Ming Y. Siu , Stuart F. Oberman
发明人： John Erik Lindholm , Henry Packard Moreton , Ming Y. Siu , Stuart F. Oberman
IPC分类号： G06K9/32 , G06T3/40
CPC分类号： G06T3/4007
摘要： One embodiment of the present invention sets forth a technique controlling the pixel location at which the plane equation is evaluated. Multiple pixel offsets (dx, dy) may be specified that each define to a sub-pixel sample position. Attributes are then calculated for each sub-pixel sample position that is covered by a geometric primitive. One advantage of the technique is that anti-aliasing quality may be improved since high frequency color components may be selectively supersampled for particular geometric primitives.
摘要翻译：本发明的一个实施例提出了一种控制平面方程被评估的像素位置的技术。可以指定多个像素偏移（dx，dy），每个像素偏移定义为子像素采样位置。然后对由几何图元覆盖的每个子像素样本位置计算属性。该技术的一个优点是可以改善抗混叠质量，因为可以对特定几何基元选择性地超采样高频彩色分量。

2. 发明授权

US08645638B2 Shared single-access memory with management of multiple parallel requests 有权
标题翻译：具有管理多个并行请求的共享单访问存储器
公开(公告)号：US08645638B2
公开(公告)日：2014-02-04
申请号：US13466057
申请日：2012-05-07
申请人： Brett W. Coon , Ming Y. Siu , Weizhong Xu , Stuart F. Oberman , John R. Nickolls , Peter C. Mills
发明人： Brett W. Coon , Ming Y. Siu , Weizhong Xu , Stuart F. Oberman , John R. Nickolls , Peter C. Mills
IPC分类号： G06F12/00 , G06F13/00
CPC分类号： G06F12/084 , Y02D10/13
摘要： A memory is used by concurrent threads in a multithreaded processor. Any addressable storage location is accessible by any of the concurrent threads, but only one location at a time is accessible. The memory is coupled to parallel processing engines that generate a group of parallel memory access requests, each specifying a target address that might be the same or different for different requests. Serialization logic selects one of the target addresses and determines which of the requests specify the selected target address. All such requests are allowed to proceed in parallel, while other requests are deferred. Deferred requests may be regenerated and processed through the serialization logic so that a group of requests can be satisfied by accessing each different target address in the group exactly once.
摘要翻译：多线程处理器中的并发线程使用内存。任何可寻址的存储位置都可以由任何并发线程访问，但一次只能访问一个位置。存储器耦合到并行处理引擎，其产生一组并行存储器访问请求，每个指定对于不同请求可能相同或不同的目标地址。序列化逻辑选择一个目标地址，并确定哪个请求指定所选择的目标地址。允许所有这些请求并行进行，而其他请求被推迟。可以通过序列化逻辑重新生成和处理延迟请求，以便通过一次访问组中的每个不同的目标地址来满足一组请求。

3. 发明授权

US08533435B2 Reordering operands assigned to each one of read request ports concurrently accessing multibank register file to avoid bank conflict 有权
标题翻译：对分配给每个读取请求端口的操作数重新排序并发访问多银行寄存器文件以避免银行冲突
公开(公告)号：US08533435B2
公开(公告)日：2013-09-10
申请号：US12875843
申请日：2010-09-03
申请人： Xiaogang Qiu , Ming Y. Siu , Yan Yan Tang , John Erik Lindholm , Michael C. Shebanow , Stuart F. Oberman
发明人： Xiaogang Qiu , Ming Y. Siu , Yan Yan Tang , John Erik Lindholm , Michael C. Shebanow , Stuart F. Oberman
IPC分类号： G06F9/34
CPC分类号： G06F9/3012 , G06F9/30098 , G06F9/3824 , G06F9/3851 , G06F9/3885 , G06F9/3887 , G06F9/3889
摘要： One embodiment of the present invention sets forth a technique for collecting operands specified by an instruction. As a sequence of instructions is received the operands specified by the instructions are assigned to ports, so that each one of the operands specified by a single instruction is assigned to a different port. Reading of the operands from a multi-bank register file is scheduled by selecting an operand from each one of the different ports to produce an operand read request and ensuring that two or more of the selected operands are not stored in the same bank of the multi-bank register file. The operands specified by the operand read request are read from the multi-bank register file in a single clock cycle. Each instruction is then executed as the operands specified by the instruction are read from the multi-bank register file and collected over one or more clock cycles.
摘要翻译：本发明的一个实施例提出了一种用于收集由指令指定的操作数的技术。由于接收到指令序列，指令指定的操作数被分配给端口，以便将由单个指令指定的每个操作数分配给不同的端口。通过从不同端口中的每一个选择一个操作数来调度来自多存储器寄存器文件的操作数，以产生操作数读取请求，并确保所选择的操作数中的两个或更多个不存储在多个存储区的同一个存储区中银行寄存器文件。由操作数读取请求指定的操作数在单个时钟周期内从多存储体寄存器文件读取。然后由指令指定的操作数从多存储寄存器文件中读取并在一个或多个时钟周期内采集，执行每条指令。

4. 发明授权

US08190669B1 Multipurpose arithmetic functional unit 有权
标题翻译：多功能算术功能单元
公开(公告)号：US08190669B1
公开(公告)日：2012-05-29
申请号：US10970253
申请日：2004-10-20
申请人： Stuart F. Oberman , Ming Y. Siu
发明人： Stuart F. Oberman , Ming Y. Siu
IPC分类号： G06F7/44
CPC分类号： G06F7/44 , G06F1/035 , G06F7/5443 , G06F9/3895 , G06F2101/04 , G06F2101/08 , G06F2101/10 , G06F2101/12
摘要： Multipurpose arithmetic functional units can perform planar attribute interpolation and unary function approximation operations. In one embodiment, planar interpolation operations for coordinates (x, y) are executed by computing A*x+B*y+C, and unary function approximation operations for operand x are executed by computing F2(xb)*xh2+F1(xb)*xh+F0(xb), where xh=x−xb. Shared multiplier and adder circuits are advantageously used to implement the product and sum operations for both classes of operations.
摘要翻译：多用途算术功能单元可以执行平面属性插值和一元函数近似运算。在一个实施例中，通过计算A * x + B * y + C来执行坐标（x，y）的平面内插操作，并且通过计算F2（xb）* xh2 + F1（xb）来执行操作数x的一元函数近似运算）* xh + F0（xb），其中xh = x-xb。共享乘法器和加法器电路有利地用于实现两类操作的乘积和求和运算。

5. 发明授权

US08037119B1 Multipurpose functional unit with single-precision and double-precision operations 有权
标题翻译：具有单精度和双精度运算功能的多用途功能单元
公开(公告)号：US08037119B1
公开(公告)日：2011-10-11
申请号：US11359353
申请日：2006-02-21
申请人： Stuart F. Oberman , Ming Y. Siu
发明人： Stuart F. Oberman , Ming Y. Siu
IPC分类号： G06F7/44
CPC分类号： G06F7/4876 , G06F7/5324 , G06F7/57 , G06F17/10
摘要： A multipurpose arithmetic functional unit selectably performs planar attribute interpolation, unary function approximation, and double-precision arithmetic. In one embodiment, planar interpolation operations for coordinates (x, y) are executed by computing A*x+B*y+C, and unary function approximation operations for operand x are executed by computing F2(xb)*xh2+F1(xb)*xh+F0(xb), where xh=x−xb. Shared multiplier and adder circuits are advantageously used to implement the product and sum operations for unary function approximation and planar interpolation; the same multipliers and adders are also leveraged to implement double-precision multiplication and addition.
摘要翻译：多用途算术功能单元可选地执行平面属性插值，一元函数近似和双精度算术。在一个实施例中，通过计算A * x + B * y + C来执行坐标（x，y）的平面内插操作，并且通过计算F2（xb）* xh2 + F1（xb）来执行操作数x的一元函数近似运算）* xh + F0（xb），其中xh = x-xb。共享乘法器和加法器电路有利地用于实现一元函数近似和平面内插的乘积和求和运算; 同样的乘法器和加法器也被用来实现双精度乘法和加法。

6. 发明申请

US20110072243A1 Unified Collector Structure for Multi-Bank Register File 有权
标题翻译：多银行登记册统一采集器结构
公开(公告)号：US20110072243A1
公开(公告)日：2011-03-24
申请号：US12875843
申请日：2010-09-03
申请人： Xiaogang Qiu , Ming Y. Siu , Yan Yan Tang , John Erik Lindholm , Michael C. Shebanow , Stuart F. Oberman
发明人： Xiaogang Qiu , Ming Y. Siu , Yan Yan Tang , John Erik Lindholm , Michael C. Shebanow , Stuart F. Oberman
IPC分类号： G06F9/30
CPC分类号： G06F9/3012 , G06F9/30098 , G06F9/3824 , G06F9/3851 , G06F9/3885 , G06F9/3887 , G06F9/3889
摘要： One embodiment of the present invention sets forth a technique for collecting operands specified by an instruction. As a sequence of instructions is received the operands specified by the instructions are assigned to ports, so that each one of the operands specified by a single instruction is assigned to a different port. Reading of the operands from a multi-bank register file is scheduled by selecting an operand from each one of the different ports to produce an operand read request and ensuring that two or more of the selected operands are not stored in the same bank of the multi-bank register file. The operands specified by the operand read request are read from the multi-bank register file in a single clock cycle. Each instruction is then executed as the operands specified by the instruction are read from the multi-bank register file and collected over one or more clock cycles.
摘要翻译：本发明的一个实施例提出了一种用于收集由指令指定的操作数的技术。由于接收到指令序列，指令指定的操作数被分配给端口，以便将由单个指令指定的每个操作数分配给不同的端口。通过从不同端口中的每一个选择一个操作数来调度来自多存储器寄存器文件的操作数，以产生操作数读取请求，并确保所选择的操作数中的两个或更多个不存储在多个存储区的同一个存储区中银行寄存器文件。由操作数读取请求指定的操作数在单个时钟周期内从多存储体寄存器文件读取。然后由指令指定的操作数从多存储寄存器文件中读取并在一个或多个时钟周期内采集，执行每条指令。

7. 发明授权

US07680988B1 Single interconnect providing read and write access to a memory shared by concurrent threads 有权
标题翻译：单一互连提供对并发线程共享的内存的读写访问
公开(公告)号：US07680988B1
公开(公告)日：2010-03-16
申请号：US11554563
申请日：2006-10-30
申请人： John R. Nickolls , Brett W. Coon , Ming Y. Siu , Stuart F. Oberman , Samuel Liu
发明人： John R. Nickolls , Brett W. Coon , Ming Y. Siu , Stuart F. Oberman , Samuel Liu
IPC分类号： G06F13/16
CPC分类号： G06F12/084 , G06F9/544 , G06F15/167 , Y02D10/13
摘要： A shared memory is usable by concurrent threads in a multithreaded processor, with any addressable storage location in the shared memory being readable and writeable by any of the threads. Processing engines that execute the threads are coupled to the shared memory via an interconnect that transfers data in only one direction (e.g., from the shared memory to the processing engines); the same interconnect supports both read and write operations. The interconnect advantageously supports multiple parallel read or write operations.
摘要翻译：共享存储器可由多线程处理器中的并发线程使用，共享存储器中的任何可寻址存储位置可由任何线程读取和写入。执行线程的处理引擎通过仅在一个方向（例如，从共享存储器到处理引擎）传送数据的互连来耦合到共享存储器; 相同的互连支持读写操作。互连有利地支持多个并行读或写操作。

8. 发明授权

US07283556B2 Method and system for managing time division multiplexing (TDM) timeslots in a network switch 失效
标题翻译：用于管理网络交换机中的时分复用（TDM）时隙的方法和系统
公开(公告)号：US07283556B2
公开(公告)日：2007-10-16
申请号：US10209158
申请日：2002-07-31
申请人： Rodney N. Mullendore , Stuart F. Oberman , Anil Mehta , Keith Schakel , Kamran Malik
发明人： Rodney N. Mullendore , Stuart F. Oberman , Anil Mehta , Keith Schakel , Kamran Malik
IPC分类号： H04L12/43
CPC分类号： H04L49/103 , H04L49/3018 , H04L49/3027 , H04L49/351 , H04L49/357 , H04Q11/04 , H04Q2213/13292 , H04Q2213/13296 , H04Q2213/13332 , H04Q2213/13389
摘要： A system and method for managing the allocation of Time Division Multiplexing (TDM) timeslots in a network switch. The network switch may use a TDM cycle comprising multiple timeslots to manage shared resources and to schedule data ingress and egress through the ports of the current configuration, wherein each port is assigned one or more timeslots. The network switch may be reprogrammed to support one of multiple timeslot assignment schemes for one of multiple port configurations. The network switch may support configurations with varying numbers of ports, e.g. 8- and 16-port configurations. A network switch may also support configurations where two or more ports are combined to form one port, for example, a 2 Gbs Fibre Channel port. To meet the requirements of the various configurations, the timeslot assignment scheme may be reprogrammed to meet the scheduling requirements of each of the possible port configurations.
摘要翻译：一种用于管理网络交换机中时分多路复用（TDM）时隙分配的系统和方法。网络交换机可以使用包括多个时隙的TDM周期来管理共享资源，并且通过当前配置的端口来调度数据入口和出口，其中每个端口被分配一个或多个时隙。网络交换机可以被重新编程以支持多个端口配置之一的多个时隙分配方案之一。网络交换机可以支持具有不同数量端口的配置，例如， 8和16端口配置。网络交换机还可以支持将两个或多个端口组合以形成一个端口（例如，2Gbs光纤通道端口）的配置。为了满足各种配置的要求，时隙分配方案可以被重新编程以满足每个可能的端口配置的调度要求。

9. 发明授权

US06425074B1 Method and apparatus for rapid execution of FCOM and FSTSW 有权
标题翻译：用于快速执行FCOM和FSTSW的方法和装置
公开(公告)号：US06425074B1
公开(公告)日：2002-07-23
申请号：US09393524
申请日：1999-09-10
申请人： Stephan G. Meier , Norbert Juffa , Frederick D. Weber , Stuart F. Oberman
发明人： Stephan G. Meier , Norbert Juffa , Frederick D. Weber , Stuart F. Oberman
IPC分类号： G06F9302
CPC分类号： G06F9/30021 , G06F9/30094 , G06F9/30101 , G06F9/3017 , G06F9/3836 , G06F9/384 , G06F9/3855 , G06F9/3857 , G06F9/3859
摘要： A microprocessor configured to rapidly execute floating point store status word (FSTSW) type instructions that are immediately preceded by floating point compare (FCOM) type instructions is disclosed. FCOM-type instructions are modified to store their results to an architectural floating point status word and a temporary destination register. If an FSTSW-type instruction is detected immediately following an FCOM-type instruction, then the FSTSW-type instruction is transformed into a special fast floating point store status word (FSTSWEF) instruction. Unlike the FSTSW-type instruction, which is serializing and negatively impacts performance, the FSTSWEF instruction is not serializing and allows execution to continue without undue serialization. A computer system and method for rapidly executing FSTSW instructions immediately preceded by FCOM-type instructions are also disclosed.
摘要翻译：公开了一种被配置为快速执行浮点比较（FCOM）类型指令之前的浮点存储状态字（FSTSW）类型指令的微处理器。修改FCOM类型的指令以将其结果存储到架构浮点状态字和临时目标寄存器。如果在FCOM型指令之后立即检测到FSTSW型指令，则FSTSW型指令被转换为特殊的快速浮点存储状态字（FSTSWEF）指令。与串行化和负面影响性能的FSTSW型指令不同，FSTSWEF指令不是序列化的，允许执行继续，而不会过多的序列化。还公开了一种用于在紧接在FCOM型指令之前快速执行FSTSW指令的计算机系统和方法。

10. 发明授权

US06393554B1 Method and apparatus for performing vector and scalar multiplication and calculating rounded products 有权
标题翻译：执行向量和标量乘法并计算舍入积的方法和装置
公开(公告)号：US06393554B1
公开(公告)日：2002-05-21
申请号：US09487771
申请日：2000-01-19
申请人： Stuart F. Oberman , Ming Siu , Ravi Krishna Cherukuri
发明人： Stuart F. Oberman , Ming Siu , Ravi Krishna Cherukuri
IPC分类号： G06F752
CPC分类号： G06F7/53 , G06F7/4991 , G06F7/49936 , G06F7/49963 , G06F7/49994 , G06F7/5338 , G06F7/5443 , G06F9/30014 , G06F9/30036 , G06F9/3017 , G06F9/3804 , G06F9/3885 , G06F17/16 , G06F2207/3828
摘要： A multiplier capable of performing signed and unsigned scalar and vector multiplication is disclosed. The multiplier is configured to receive signed or unsigned multiplier and multiplicand operands in scalar or packed vector form. An effective sign for the multiplier and multiplicand operands may be calculated based upon each operand's most significant bit and a control signal. The effective signs may then be used to create and select a number of partial products according to Booth's algorithm. Once the partial products have been created and selected, they may be summed and the results may be output. The results may be signed or unsigned, and may represent vector or scalar quantities. When a vector multiplication is performed, the multiplier may be configured to generate and select partial products so as to effectively isolate the multiplication process for each pair of vector components. The multiplier may also be configured to sum the products of the vector components to form the vector dot product. The final product may be output in segments so as to require fewer bus lines. The segments may be rounded by adding a rounding constant. Rounding and normalization may be performed in two paths, one assuming an overflow will occur, the other assuming no overflow will occur.
摘要翻译：公开了能够执行有符号和无符号标量和矢量乘法的乘法器。乘法器配置为以标量或压缩向量形式接收带符号或无符号乘数和被乘数操作数。可以基于每个操作数的最高有效位和控制信号来计算乘法器和被乘数操作数的有效符号。然后根据布斯算法，有效符号可用于创建和选择多个部分乘积。一旦创建并选择了部分产品，就可以对它们进行求和并输出结果。结果可能是有符号或无符号的，可能表示向量或标量。当执行向量乘法时，乘法器可以被配置为产生和选择部分乘积，以便有效地隔离每对向量分量的乘法过程。乘法器还可以被配置为对矢量分量的乘积求和以形成向量点积。最终产品可以以分段输出，以便需要更少的总线。可以通过添加舍入常数来对段进行舍入。可以在两个路径中执行舍入和归一化，一个假设将发生溢出，另一个假设不会发生溢出。

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