专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06351760B1 Division unit in a processor using a piece-wise quadratic approximation technique 有权
标题翻译：使用分段二次逼近技术的处理器中的分割单元
公开(公告)号：US06351760B1
公开(公告)日：2002-02-26
申请号：US09240312
申请日：1999-01-29
申请人： Ravi Shankar , Subramania I. Sudharsanan
发明人： Ravi Shankar , Subramania I. Sudharsanan
IPC分类号： G06F752
CPC分类号： G06F7/535 , G06F7/4873 , G06F7/49947 , G06F7/49957 , G06F7/49963 , G06F9/30014 , G06F2207/3884
摘要： A computation unit computes a division operation Y/X by determining the value of a divisor reciprocal 1/X and multiplying the reciprocal by a numerator Y. The reciprocal 1/X value is determined using a quadratic approximation having a form: Ax2+Bx+C, where coefficients A, B, and C are constants that are stored in a storage or memory such as a read-only memory (ROM). The bit length of the coefficients determines the error in a final result. Storage size is reduced through use of “least mean square error”techniques in the determination of the coefficients that are stored in the coefficient storage. During the generation of partial products x2, Ax2, and Bx, the process of rounding is eliminated, thereby reducing the computational logic to implement the division functionality.
摘要翻译：计算单元通过确定除数互逆1 / X的值并将倒数乘以分子Y来计算除法运算Y / X。使用具有以下形式的二次近似来确定倒数1 / X值：其中系数A， B和C是存储在诸如只读存储器（ROM）的存储器或存储器中的常数。系数的位长决定了最终结果中的误差。在确定系数存储器中存储的系数时，通过使用“最小均方误差”技术来减少存储大小。在部分产品x2，Ax2和Bx的生成期间，舍入的过程被消除，从而减少了实现分割功能的计算逻辑。

2. 发明授权

US06678710B1 Logarithmic number system for performing calculations in a processor 有权
标题翻译：用于在处理器中执行计算的对数编号系统
公开(公告)号：US06678710B1
公开(公告)日：2004-01-13
申请号：US09706467
申请日：2000-11-03
申请人： Ravi Shankar , Subramania I. Sudharsanan
发明人： Ravi Shankar , Subramania I. Sudharsanan
IPC分类号： G06F700
CPC分类号： G06F7/4833
摘要： A computation unit employs a logarithmic number system that uses a logarithmic numerical representation that differs from an IEEE standard representation to improve the efficiency of computation, both by reducing the time expended in performing the computation and by reducing the size of the integrated circuit that performs the computation. The illustrative computation unit employs a numerical representation that is similar to the IEEE format except that the sign term is omitted. Thus only positive numbers are represented. The value of the mantissa is defined as a fractional number between zero and one. The logarithmic number system is a useful number system domain for multiplication, division, reciprocal, square root, and power computations using multiplication, division, and square root computation techniques described by following equations: A*B=Anti-log(log(A)+log(B)), (3) A/B=Anti-log(log(A)−log(B)), (4) B½=Anti-log(log(B)/2). (5)
摘要翻译：计算单元使用对数数字系统，其使用与IEEE标准表示不同的对数数字表示，以通过减少执行计算所花费的时间和减少执行计算的集成电路的大小来提高计算效率计算。说明性计算单元采用类似于IEEE格式的数字表示，除了省略符号项。因此，仅表示正数。尾数的值被定义为零和一之间的分数。对数次数系统是使用以下等式描述的乘法，除法和平方根计算技术的乘法，除法，倒数，平方根和功率计算的有用数字系统域：

3. 发明授权

US06341300B1 Parallel fixed point square root and reciprocal square root computation unit in a processor 有权
标题翻译：一个处理器中的平行固定点平方根和倒数平方根计算单元
公开(公告)号：US06341300B1
公开(公告)日：2002-01-22
申请号：US09240977
申请日：1999-01-29
申请人： Ravi Shankar , Subramania I. Sudharsanan
发明人： Ravi Shankar , Subramania I. Sudharsanan
IPC分类号： G06F738
CPC分类号： G06F9/30014 , G06F1/0356 , G06F7/483 , G06F7/5525 , G06F9/30036 , G06F9/30098 , G06F9/3012 , G06F9/3838 , G06F9/3853 , G06F9/3877 , G06F9/3885 , G06F2101/08 , G06F2207/3824 , G06F2207/3828 , G06F2207/5521
摘要： A parallel fixed-point square root and reciprocal square root computation uses the same coefficient tables as the floating point square root and reciprocal square root computation by converting the fixed-point numbers into a floating-point structure with a leading implicit 1. The value of a number X is stored as two fixed-point numbers. In one embodiment, the fixed-point numbers are converted to the special floating-point structure using a leading zero detector and a shifter. Following the square root computation or the reciprocal square root computation, the floating point result is shifted back into the two-entry fixed-point format. The shift count is determined by the number of leaded zeros detected during the conversion from fixed-point to floating-point format.
摘要翻译：平行定点平方根和倒数平方根计算使用与浮点平方根和倒数平方根计算相同的系数表，将固定点数转换成具有前导隐含的浮点结构。数字X被存储为两个定点数。在一个实施例中，使用前导零检测器和移位器将定点数转换为特殊浮点结构。在平方根计算或倒数平方根计算之后，浮点结果被转回到两入口定点格式。移位计数由在从定点到浮点格式的转换期间检测到的引导零的数量来确定。

4. 发明授权

US06349319B1 Floating point square root and reciprocal square root computation unit in a processor 有权
标题翻译：处理器中的浮点平方根和倒数平方根计算单元
公开(公告)号：US06349319B1
公开(公告)日：2002-02-19
申请号：US09240765
申请日：1999-01-29
申请人： Ravi Shankar , Subramania I. Sudharsanan
发明人： Ravi Shankar , Subramania I. Sudharsanan
IPC分类号： G06F7552
CPC分类号： G06F9/30014 , G06F7/5525 , G06F2207/5521
摘要： A method of computing a square root or a reciprocal square root of a number in a computing device uses a piece-wise quadratic approximation of the number. The square root computation uses the piece-wise quadratic approximation in the form: squareroot(X)={overscore (A)}ix2+{overscore (B)}ix+{overscore (C)}i, in each interval i. The reciprocal square root computation uses the piece-wise quadratic approximation in the form: 1/squareroot(X)=Aix2+Bix+Ci, in each interval i. The coefficients {overscore (A)}i, {overscore (B)}i, and {overscore (C)}i, and Ai, Bi, and Ci are derived for the square root operation and for the reciprocal square root operation to reduce the least mean square error using a least squares approximation of a plurality of equally-spaced points within an interval. In one embodiment, 256 equally-spaced intervals are defined to represent the 23 bits of the mantissa. The coefficients are stored in a storage and accessed during execution of the square root or reciprocal square root computation instruction.
摘要翻译：在计算装置中计算数字的平方根或倒数平方根的方法使用数字的分段二次近似。平方根计算使用分段二次近似形式：在每个间隔i。互逆平方根计算使用分段二次逼近形式：在每个间隔i。导出了平方根运算和倒数平方根运算的系数{overscore（A）} i，{overscore（B）} i和{overscore（C）} i以及Ai，Bi和Ci 使用在间隔内的多个等间隔点的最小平方近似的最小均方误差。在一个实施例中，256个等间隔的间隔被定义为表示尾数的23位。系数存储在存储器中，并在执行平方根或倒数平方根计算指令期间访问。

5. 外观设计

USD845228S1 Floating solar structure 有权
公开(公告)号：USD845228S1
公开(公告)日：2019-04-09
申请号：US29640530
申请日：2018-03-15
申请人： Ravi Shankar
设计人： Ravi Shankar

6. 发明申请

US20180197115A1 TENNIS, SQUASH AND RACQUETBALL COURTS RESERVATION SYSTEM 审中-公开
公开(公告)号：US20180197115A1
公开(公告)日：2018-07-12
申请号：US15403659
申请日：2017-01-11
申请人： Ravi Shankar
发明人： Ravi Shankar
IPC分类号： G06Q10/02 , G06Q30/06
CPC分类号： G06Q10/02 , G06Q30/0601
摘要： A reservation system for tennis, squash and racquetball courts and a computer-implemented method for implementing the reservation system for tennis, squash and racquetball courts comprises a memory unit and a processor. The database stores one or more records associated with at least one tennis, squash and racquetball courts, and a set of program modules. The processor executes the set of program modules. The set of program modules comprises a display module, an input module and a booking module. The display module presents the user with the list of available time slots. The input module to receive a request from a user. The request is to reserve at least one of a tennis lesson and a tennis, squash and racquetball courts, in at least one available time slot in the list of available time slots. The booking module is configured to record the request in the database.

7. 发明申请

US20150181713A1 PANEL WITH RELEASABLE CORE 有权
标题翻译：具有可释放核心的面板
公开(公告)号：US20150181713A1
公开(公告)日：2015-06-25
申请号：US14227697
申请日：2014-03-27
申请人： Ching-Ping Janet Shen , Charan K. Gurumurthy , Dilan Seneviratne , Ravi Shankar , Liwen Jin , Deepak Arora
发明人： Ching-Ping Janet Shen , Charan K. Gurumurthy , Dilan Seneviratne , Ravi Shankar , Liwen Jin , Deepak Arora
IPC分类号： H05K1/18 , B32B3/26 , B32B37/12 , H05K3/30 , B32B37/14 , H05K1/02 , B32B15/20
CPC分类号： H05K1/183 , B32B3/263 , B32B7/12 , B32B15/08 , B32B15/20 , B32B37/10 , B32B37/1284 , B32B2307/202 , B32B2457/08 , H01L23/13 , H01L23/5389 , H01L2924/0002 , H05K1/185 , H05K3/284 , Y10T428/24612 , Y10T428/2495 , Y10T428/31678 , H01L2924/00
摘要： Generally discussed herein are systems and apparatuses that can include a releasable core panel. The disclosure also includes techniques of making and using the systems and apparatuses. According to an example a technique of making a releasable core panel can include coupling an inner foil to a base, situating an adhesive layer on the inner foil, such that the inner foil is substantially flush with a periphery of the base, situating an outer conductive foil on the adhesive layer, or covering an interface between the adhesive layer, the inner foil and the outer conductive foil with a protective material.
摘要翻译：本文通常讨论的是可以包括可释放的核心面板的系统和装置。本公开还包括制造和使用系统和装置的技术。根据一个实例，制造可释放的芯板的技术可以包括将内箔连接到基底上，将粘合剂层定位在内箔上，使得内箔基本上与基底的周边齐平，将外导电或者利用保护材料覆盖粘合层，内箔和外导电箔之间的界面。

8. 发明授权

US09019688B2 Capacitance trimming with an integrated heater 有权
标题翻译：电容调整与集成加热器
公开(公告)号：US09019688B2
公开(公告)日：2015-04-28
申请号：US13310466
申请日：2011-12-02
申请人： Olivier Le Neel , Ravi Shankar
发明人： Olivier Le Neel , Ravi Shankar
IPC分类号： H01G7/04 , H01L23/522 , H01L49/02 , H01L23/34 , H01G4/33 , H01L27/06
CPC分类号： H01G7/04 , H01G4/33 , H01L23/345 , H01L23/5223 , H01L23/5228 , H01L27/0688 , H01L28/40 , H01L28/55 , H01L2924/0002 , Y10T29/43 , H01L2924/00
摘要： The present disclosure is directed to a device and a method for achieving a precise capacitance of a capacitor. The method includes trimming a first capacitance of the capacitor to a second capacitance, the capacitor having a first conductive layer separated from a second conductive layer by a dielectric layer. Changing a first dielectric constant of the dielectric layer to a second dielectric constant, where the first dielectric constant corresponding to the first capacitance and the second dielectric constant corresponding to the second dielectric constant includes heating the dielectric layer above a threshold temperature for a time period. The heat is provided by either one of the plates of the capacitor or from a separate heater.
摘要翻译：本公开涉及一种用于实现电容器的精确电容的装置和方法。该方法包括将电容器的第一电容调整为第二电容，该电容器具有通过电介质层与第二导电层分离的第一导电层。将电介质层的第一介电常数改变到第二介电常数，其中对应于第一电容的第一介电常数和对应于第二介电常数的第二介电常数包括将电介质层加热到阈值温度一段时间。热量由电容器的任一个板或从单独的加热器提供。

9. 发明授权

US08776008B2 Post facto identification and prioritization of causes of buffer consumption 有权
标题翻译：缓冲区消费原因的事后识别和优先级排序
公开(公告)号：US08776008B2
公开(公告)日：2014-07-08
申请号：US12610228
申请日：2009-10-30
申请人： Ajai Kapoor , Ravi Shankar , Xiangting Yuan , Anthony H. Hoang , Prakash K. Pati
发明人： Ajai Kapoor , Ravi Shankar , Xiangting Yuan , Anthony H. Hoang , Prakash K. Pati
IPC分类号： G06F9/44 , G06Q10/00
CPC分类号： G06Q10/06
摘要： Some embodiments of the present invention provide systems and techniques for collecting task status information. During operation, the system can receive a status update for a task from a task manager through a GUI. Next, the system can determine whether the first status update for the task indicates that the task is delayed. If the status update indicates that the task is delayed, the system can request the task manager to indicate the help needed to resolve the task delay. Next, the system can receive a help needed descriptor from the task manager. Subsequently, the system can receive another status update for the task from the task manager, wherein the status update indicates that the help specified in the help needed descriptor is no longer required. Next, the system can determine an amount of delay associated with the help needed descriptor.
摘要翻译：本发明的一些实施例提供了用于收集任务状态信息的系统和技术。在操作期间，系统可以通过GUI从任务管理器接收任务的状态更新。接下来，系统可以确定任务的第一状态更新是否指示任务被延迟。如果状态更新指示任务延迟，则系统可以请求任务管理器指示解决任务延迟所需的帮助。接下来，系统可以从任务管理器接收需要帮助的描述符。随后，系统可以从任务管理器接收任务的另一状态更新，其中状态更新指示不再需要在帮助需求描述符中指定的帮助。接下来，系统可以确定与帮助需要的描述符相关联的延迟量。

10. 发明授权

US08581679B2 Switch with increased magnetic sensitivity 有权
标题翻译：切换灵敏度提高
公开(公告)号：US08581679B2
公开(公告)日：2013-11-12
申请号：US12713390
申请日：2010-02-26
申请人： Tang Min , Olivier Le Neel , Ravi Shankar
发明人： Tang Min , Olivier Le Neel , Ravi Shankar
IPC分类号： H01H51/22 , H01H57/00
CPC分类号： H01H1/0036
摘要： Switches that are actuated through exposure to a magnetic field are described. A mobile element of a switch includes one or more anchoring members that are in electrical contact with one of the conductive portions. The mobile element also has a beam that is attached to the one or more anchoring members. The beam can be attached to the one or more anchoring members by flexures. The beam has an end portion that is configured to move toward the other conductive portion when exposed to an external force, such as a magnetic field. Various configurations of anchoring members may significantly decrease initial upward beam deformation upon manufacture of the mobile element, resulting in an increased sensitivity upon exposure to a magnetic field. Methods for manufacturing switches that exhibit increased sensitivity to magnetic fields are also disclosed.
摘要翻译：描述通过暴露于磁场而被致动的开关。开关的移动元件包括与导电部分之一电接触的一个或多个锚定构件。移动元件还具有附接到一个或多个锚固构件的梁。梁可以通过弯曲连接到一个或多个锚固构件。梁具有端部，其被配置为当暴露于诸如磁场的外力时朝向另一导电部分移动。锚定构件的各种构造可以在制造移动元件时显着降低初始向上的梁变形，导致暴露于磁场时的灵敏度增加。还公开了对磁场具有增强的灵敏度的开关的制造方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式