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1. 发明授权

US09639355B2 Functional unit capable of executing approximations of functions 有权
公开(公告)号：US09639355B2
公开(公告)日：2017-05-02
申请号：US14216884
申请日：2014-03-17
申请人： INTEL CORPORATION
发明人： Alex Pineiro , Thomas D. Fletcher , Brian J. Hickmann
IPC分类号： G06F1/02 , G06F9/30 , G06F9/38 , G06F1/035
CPC分类号： G06F9/3001 , G06F1/035 , G06F9/3895 , G06F2101/08 , G06F2101/10 , G06F2101/12
摘要： A semiconductor chip is described having a functional unit that can execute a first instruction and execute a second instruction. The first instruction is an instruction that multiplies two operands. The second instruction is an instruction that approximates a function according to C0+C1X2+C2X22. The functional unit has a multiplier circuit. The multiplier circuit has: i) a first input to receive bits of a first operand of the first instruction and receive bits of a C1 term of the second instruction; ii) a second input to receive bits of a second operand of the first instruction and receive bits of a X2 term of the second instruction.

2. 发明授权

US09223752B2 Digital signal processor with one or more non-linear functions using factorized polynomial interpolation 有权
标题翻译：具有一个或多个非线性函数的数字信号处理器使用分解多项式插值
公开(公告)号：US09223752B2
公开(公告)日：2015-12-29
申请号：US12324934
申请日：2008-11-28
申请人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
发明人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
IPC分类号： G06F17/17 , G06F17/10 , G06F1/035 , G06F9/30 , G06F9/38
CPC分类号： G06F17/10 , G06F1/035 , G06F9/3001 , G06F9/383
摘要： A digital signal processor and method are disclosed with one or more non-linear functions using factorized polynomial interpolation. A digital signal processor evaluates a non-linear function for a value, x, by obtaining two or more values from at least one look-up table for said non-linear function that are near said value, x; and interpolating said two or more obtained values to obtain a value, y, using a factorized polynomial interpolation.
摘要翻译：公开了使用因式分解多项式插值的一个或多个非线性函数的数字信号处理器和方法。数字信号处理器通过从接近所述值x的所述非线性函数的至少一个查找表中获得两个或更多个值来评估值x的非线性函数; 并且使用因式分解多项式插值来内插所述两个或更多个获得的值以获得值y。

3. 发明授权

US09152669B2 System and method for distributed SQL join processing in shared-nothing relational database clusters using stationary tables 有权
标题翻译：使用静态表的无共享关系数据库集群中的分布式SQL连接处理的系统和方法
公开(公告)号：US09152669B2
公开(公告)日：2015-10-06
申请号：US13802084
申请日：2013-03-13
申请人： FutureWei Technologies, Inc.
发明人： Mohan Singamshetty
IPC分类号： G06F17/00 , G06F17/30 , G06F1/035
CPC分类号： G06F17/30442 , G06F1/035 , G06F17/30498
摘要： System and method embodiments are provided for improving the performance of query processing in a massively parallel processing (MPP) database system by selecting one or more stationary tables for processing the query plan. In an embodiment method, a join query associated with a plurality of tables of the MPP database system is received at a coordinator process. Stationary tables are then selected from the tables according to table partition keys in the join query. The stationary tables are indicated and the join query are sent to a plurality of data nodes communicating with the coordinator process. At each of the data nodes, an execution plan for the join query is generated. Each of the data nodes then executes the execution plan to obtain query results without sharing information of the stationary tables between the data nodes.
摘要翻译：提供了系统和方法实施例，用于通过选择用于处理查询计划的一个或多个固定表来改善大规模并行处理（MPP）数据库系统中的查询处理的性能。在一个实施方式中，在协调器进程处接收与MPP数据库系统的多个表相关联的连接查询。然后根据连接查询中的表分区键从表中选择固定表。指示固定表，并将连接查询发送到与协调器进程通信的多个数据节点。在每个数据节点上，生成连接查询的执行计划。然后，每个数据节点执行执行计划以获得查询结果，而不共享数据节点之间的静态表的信息。

4. 发明申请

US20150141069A1 THERMAL NOISE POWER FLOOR ESTIMATION 有权
标题翻译：热噪声功率平台估算
公开(公告)号：US20150141069A1
公开(公告)日：2015-05-21
申请号：US14401734
申请日：2013-05-17
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Torbjörn Wigren
IPC分类号： H04W52/24 , H04W52/34
CPC分类号： H04W52/243 , G06F1/035 , H04B1/1027 , H04B17/345 , H04W24/00 , H04W52/343 , H04W88/08
摘要： Embodiments herein relate to a method in a radio base station (12) for handling a thermal noise power floor in a thermal noise power floor estimation process. The radio base station (12) determines a change or a rate of change of a thermal noise power floor estimate relative a previous thermal noise power floor estimate. When the change or rate of change exceeds a threshold value, the radio base station (12) performs one or more of the following: setting a limitation of the change or rate of change to be below the threshold; adjusting of a scaling power, and reducing an estimated mean power level with a quantity dependent on a reduction of the thermal noise power floor estimate.
摘要翻译：本文的实施例涉及用于处理热噪声功率楼层估计过程中的热噪声功率楼层的无线电基站（12）中的方法。无线电基站（12）确定相对于先前热噪声功率层估计值的热噪声功率楼层估计值的变化或变化率。当变化率或变化率超过阈值时，无线基站（12）执行以下的一个或多个操作：将变化的限制或变化率设定为低于阈值; 调整缩放功率，并且以取决于热噪声功率底层估计的减小的量来减小估计的平均功率水平。

5. 发明申请

US20140056164A1 RADIO BASE STATION AND METHOD THEREIN 有权
标题翻译：无线电台站及其方法
公开(公告)号：US20140056164A1
公开(公告)日：2014-02-27
申请号：US13993429
申请日：2013-05-17
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Torbjörn Wigren
IPC分类号： H04W24/00
CPC分类号： H04W52/243 , G06F1/035 , H04B1/1027 , H04B17/345 , H04W24/00 , H04W52/343 , H04W88/08
摘要： Embodiments herein relate to a method in a radio base station (12) for performing thermal noise power floor estimation in a radio communications network (1). The radio base station (12) computes table entries for a table for a transcendental function evaluation, which table is of minimized size with a range of table entries defined by a smallest table entry, a largest table entry, and a number of table entries. The radio base station (12) further estimates a thermal noise power floor by performing a transcendental function evaluation in computing a product representing a cumulative probability function, which cumulative probability function is related to the thermal noise power floor. The transcendental function evaluation is performed by using table look ups of the table with the computed table entries.
摘要翻译：本文的实施例涉及用于在无线电通信网络（1）中执行热噪声功率楼层估计的无线电基站（12）中的方法。无线电基站（12）计算用于超越函数评估的表的表条目，该表是由最小表条目，最大表条目和表条目数量定义的表条目的范围最小化的。无线电基站（12）通过在计算表示累积概率函数的乘积中进行超越函数评估来进一步估计热噪声功率层，累积概率函数与热噪声功率层相关。通过使用计算表项的表查找来执行超越函数评估。

6. 发明申请

US20120079250A1 FUNCTIONAL UNIT CAPABLE OF EXECUTING APPROXIMATIONS OF FUNCTIONS 有权
标题翻译：具有执行功能近似功能的功能单元
公开(公告)号：US20120079250A1
公开(公告)日：2012-03-29
申请号：US12890533
申请日：2010-09-24
申请人： Alex Pineiro , Thomas E. Fletcher , Brian J. Hickmann
发明人： Alex Pineiro , Thomas E. Fletcher , Brian J. Hickmann
IPC分类号： G06F9/302
CPC分类号： G06F9/3001 , G06F1/035 , G06F9/3895 , G06F2101/08 , G06F2101/10 , G06F2101/12
摘要： A semiconductor chip is described having a functional unit that can execute a first instruction and execute a second instruction. The first instruction is an instruction that multiplies two operands. The second instruction is an instruction that approximates a function according to C0+C1X2+C2X22. The functional unit has a multiplier circuit. The multiplier circuit has: i) a first input to receive bits of a first operand of the first instruction and receive bits of a C1 term of the second instruction; ii) a second input to receive bits of a second operand of the first instruction and receive bits of a X2 term of the second instruction.
摘要翻译：描述了具有可执行第一指令并执行第二指令的功能单元的半导体芯片。第一条指令是将两个操作数相乘的指令。第二条指令是根据C0 + C1X2 + C2X22近似函数的指令。功能单元具有乘法电路。所述乘法器电路具有：i）第一输入，用于接收所述第一指令的第一操作数的比特并接收所述第二指令的C1项的比特; ii）用于接收第一指令的第二操作数的比特并接收第二指令的X2项的比特的第二输入。

7. 发明申请

US20100198893A1 Digital Signal Processor Having Instruction Set With An Xk Function Using Reduced Look-Up Table 有权
标题翻译：具有使用缩减查找表的Xk函数的指令集的数字信号处理器
公开(公告)号：US20100198893A1
公开(公告)日：2010-08-05
申请号：US12362874
申请日：2009-01-30
申请人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
发明人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
IPC分类号： G06F7/00 , G06F7/52
CPC分类号： G06F7/556 , G06F1/035 , G06F2101/10
摘要： A digital signal processor is provided having an instruction set with an xK function that uses a reduced look-up table. The disclosed digital signal processor evaluates an xK function for an input value, x, by computing Log(x) in hardware; multiplying the Log(x) value by K; and determining the xK function by applying an exponential function in hardware to a result of the multiplying step. One or more of the computation of Log(x) and the exponential function employ at least one look-up table having entries with a fewer number of bits than a number of bits in the input value, x.
摘要翻译：提供了一种数字信号处理器，其具有使用减少的查找表的具有xK功能的指令集。所公开的数字信号处理器通过在硬件中计算Log（x）来评估输入值x的xK函数; 将Log（x）值乘以K; 以及通过在硬件中对乘法步骤的结果应用指数函数来确定xK函数。 Log（x）和指数函数的计算中的一个或多个使用至少一个查找表，其具有比输入值x中的位数少的位数较少的条目。

8. 发明申请

US20100138464A1 Digital Signal Processor Having Instruction Set With One Or More Non-Linear Functions Using Reduced Look-Up Table With Exponentially Varying Step-Size 有权
标题翻译：具有一个或多个非线性函数的指令集的数字信号处理器使用具有指数变化步长的缩减查找表
公开(公告)号：US20100138464A1
公开(公告)日：2010-06-03
申请号：US12324931
申请日：2008-11-28
申请人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
发明人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
IPC分类号： G06F17/17
CPC分类号： G06F17/10 , G06F1/035 , G06F9/3001 , G06F9/383
摘要： A digital signal processor and method are disclosed having an instruction set with one or more non-linear functions using a look-up table of reduced size and exponentially varying step-sizes. A digital signal processor evaluates a non-linear function for a value, x, by obtaining at least two values from at least one look-up table for the non-linear function that are near the value, x, wherein the at least one look-up table stores a subset of values for the non-linear function using exponentially-varying step sizes; and interpolating the at least two obtained values lo to obtain a result, y. A position of a leading zero in the value, x, can be used as an index into the at least one look-up table. The interpolation can comprise, for example, a linear interpolation or a polynomial interpolation. A modulo arithmetic operation can optionally be employed for a periodic non-linear function.
摘要翻译：公开了一种数字信号处理器和方法，其具有使用减小尺寸和指数级变化的步长的查找表的具有一个或多个非线性函数的指令集。数字信号处理器通过从近似于值x的非线性函数的至少一个查找表中获得至少两个值来评估值x的非线性函数，其中至少一个外观 -up表使用指数变化的步长存储用于非线性函数的值的子集; 并且内插所述至少两个获得的值lo以获得结果y。值x中的前导零的位置可以用作至少一个查找表中的索引。内插可以包括例如线性内插或多项式插值。对于周期性非线性函数可以可选地使用模运算。

9. 发明申请

US20100138463A1 Digital Signal Processor Having Instruction Set With One Or More Non-Linear Functions Using Reduced Look-Up Table 有权
标题翻译：具有使用缩减查找表的一个或多个非线性函数的指令集的数字信号处理器
公开(公告)号：US20100138463A1
公开(公告)日：2010-06-03
申请号：US12324927
申请日：2008-11-28
申请人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
发明人： Kameran Azadet , Jian-Guo Chen , Samer Hijazi , Joseph Williams
IPC分类号： G06F17/17
CPC分类号： G06F17/10 , G06F1/035 , G06F9/3001 , G06F9/383
摘要： A digital signal processor and method are disclosed having an instruction set with one or more non-linear functions using a look-up table of reduced size. A digital signal processor evaluates a non-linear function for a value, x, by obtaining two or more values for the non-linear function that are near the value, x, from at least one look-up table, wherein the at least one look-up table stores a subset of values for the non-linear function; and interpolating the two or more obtained values to obtain a result, y. The interpolation may comprise, for example, a linear interpolation or a polynomial interpolation. In a further variation, a modulo arithmetic operation can be employed for a periodic non-linear function.
摘要翻译：公开了一种使用具有缩小尺寸的查找表的具有一个或多个非线性函数的指令集的数字信号处理器和方法。数字信号处理器通过从至少一个查找表获得接近值x的非线性函数的两个或更多个值来评估值x的非线性函数，其中至少一个查找表存储非线性函数的值的子集; 并且内插两个或更多获得的值以获得结果y。插值可以包括例如线性内插或多项式插值。在另一变型中，可以对周期性非线性函数采用模运算。

10. 发明授权

US07558811B2 Electronic control apparatus and memory apparatus for electronic control apparatus 有权
标题翻译：电子控制装置和电子控制装置的存储装置
公开(公告)号：US07558811B2
公开(公告)日：2009-07-07
申请号：US10764583
申请日：2004-01-27
申请人： Kazuhiro Koto , Tadaharu Nishimura
发明人： Kazuhiro Koto , Tadaharu Nishimura
IPC分类号： G06F15/00 , G06F7/38
CPC分类号： G01F23/0069 , G06F1/035 , H03M7/24
摘要： An electronic control apparatus has a memory which stores a map consisting of a set of map points and corresponding set of map values, with the map values representing respective physical quantity values, and at least one of the sets of map points and map values being stored as fixed-point representation data. When a map point is specified, the apparatus obtains a corresponding physical quantity value by converting fixed-point data of the map to floating-point representation, then using a floating-point arithmetic unit to perform an interpolation calculation using the converted data.
摘要翻译：电子控制装置具有存储由地图点集合和对应的地图值集合组成的地图，其中地图值表示相应的物理量值，存储的地图点和地图值集合中的至少一个被存储作为定点表示数据。当指定地图点时，装置通过将地图的定点数据转换为浮点表示，然后使用浮点运算单元使用转换的数据进行插值计算来获得对应的物理量值。

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