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公开(公告)号：US08788549B2
公开(公告)日：2014-07-22
申请号：US13461902
申请日：2012-05-02
申请人： Gururaj Padaki , Anindya Saha , Parag Naik , Vishwakumara Kayargadde , Sunil Hr
发明人： Gururaj Padaki , Anindya Saha , Parag Naik , Vishwakumara Kayargadde , Sunil Hr
CPC分类号： G06F7/483
摘要： A system for computing a block floating point scaling factor by detecting a dynamic range of an input signal in a central processing unit without additional overhead cycles is provided. The system includes a dynamic range monitoring unit that detects the dynamic range of the input signal by snooping outgoing write data and incoming memory read data of the input signal. The dynamic range monitoring unit includes a running maximum count unit that stores a least value of a count of leading zeros and leading ones, and a running minimum count that stores a least value of the count of trailing zeros. The dynamic range is detected based on the least value of the count of leading zeros and leading ones and the count of trailing zeros. The system further includes a scaling factor computation module that computes the block floating point (BFP) scaling factor based on the dynamic range.
摘要翻译： 提供了一种用于通过检测中央处理单元中的输入信号的动态范围来计算块浮点缩放因子的系统，而没有额外的开销周期。 该系统包括动态范围监测单元，其通过窥探输出写入数据和输入信号的输入存储器读取数据来检测输入信号的动态范围。 动态范围监视单元包括运行的最大计数单元，其存储前导零和前导零的计数的最小值，以及存储尾随零计数的最小值的运行最小计数。 基于前导零和前导零的计数的最小值和尾随零的计数来检测动态范围。 该系统还包括一个缩放因子计算模块，它根据动态范围计算块浮点（BFP）缩放因子。
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2.发明授权Simplifying generation of device drivers for different user systems to facilitate communication with a hardware device 有权简化针对不同用户系统的设备驱动程序的生成，以促进与硬件设备的通信公开(公告)号：US07904878B2
公开(公告)日：2011-03-08
申请号：US11672515
申请日：2007-02-07
申请人： Venugopal Kolathur , Parag Balwant Naik , Ravindragouda Kalagouda Patil , Vishwakumara Kayargadde
发明人： Venugopal Kolathur , Parag Balwant Naik , Ravindragouda Kalagouda Patil , Vishwakumara Kayargadde
IPC分类号： G06F9/44
摘要： Generating device drivers for different user systems to facilitate communication with a hardware device. A device specification containing a program logic specifying the manner in, which external devices can communicate with the hardware device, is received as one input. A software specification specifying various characteristics of a runtime environment (e.g., operating system, processor, hardware components) is received as another input. A device driver generator then programmatically parses the input specifications and automatically generates the device driver code.
摘要翻译： 为不同的用户系统生成设备驱动程序，以促进与硬件设备的通信。 包含指定外部设备可以与硬件设备通信的方式的程序逻辑的设备规范被接收为一个输入。 指定指定运行时环境（例如，操作系统，处理器，硬件组件）的各种特性的软件规范作为另一输入。 然后，设备驱动程序生成器以编程方式解析输入规范并自动生成设备驱动程序代码。
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公开(公告)号：US20120250799A1
公开(公告)日：2012-10-04
申请号：US13436022
申请日：2012-03-30
CPC分类号： H04L27/2665 , H04L27/2032 , H04L27/2679
摘要： An Orthogonal Frequency Division Multiplexing (OFDM) receiver system for improved pilotless detection of symbol boundary of a received OFDM symbols using M-ary Phase Shift Keying (M-PSK) modulated carriers as a cost function is provided. The OFDM receiver includes a symbol boundary detection block that detects a symbol boundary of the received OFDM symbols. The symbol boundary detection block detects the symbol boundary by computing cost function of second order moment of the M-PSK modulated carriers. The receiver system is capable of detecting the symbol boundary for unknown information on said received OFDM symbols and thus increases throughput per given transmission bandwidth of a modulation scheme.
摘要翻译： 提供了一种正交频分复用（OFDM）接收机系统，用于使用M-phase相移键控（M-PSK）调制载波作为成本函数来改进对接收的OFDM符号的符号边界的无引导检测。 OFDM接收机包括检测接收的OFDM符号的符号边界的符号边界检测块。 符号边界检测块通过计算M-PSK调制载波的二阶矩的成本函数来检测符号边界。 接收机系统能够检测所接收的OFDM符号上的未知信息的符号边界，从而增加调制方案的给定传输带宽的吞吐量。
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4.发明申请SIMPLIFYING GENERATION OF DEVICE DRIVERS FOR DIFFERENT USER SYSTEMS TO FACILITATE COMMUNICATION WITH A HARDWARE DEVICE 有权简化用于不同用户系统的设备驱动程序的生成，以便与硬件设备进行通信公开(公告)号：US20080155572A1
公开(公告)日：2008-06-26
申请号：US11672515
申请日：2007-02-07
申请人： Venugopal Kolathur , Parag Balwant Naik , Ravindragouda Kalagouda Patil , Vishwakumara Kayargadde
发明人： Venugopal Kolathur , Parag Balwant Naik , Ravindragouda Kalagouda Patil , Vishwakumara Kayargadde
IPC分类号： G06F1/00
摘要： Generating device drivers for different user systems to facilitate communication with a hardware device. A device specification containing a program logic specifying the manner in, which external devices can communicate with the hardware device, is received as one input. A software specification specifying various characteristics of a runtime environment (e.g., operating system, processor, hardware components) is received as another input. A device driver generator then programmatically parses the input specifications and automatically generates the device driver code.
摘要翻译： 为不同的用户系统生成设备驱动程序，以促进与硬件设备的通信。 包含指定外部设备可以与硬件设备通信的方式的程序逻辑的设备规范被接收为一个输入。 指定指定运行时环境（例如，操作系统，处理器，硬件组件）的各种特性的软件规范作为另一输入。 然后，设备驱动程序生成器以编程方式解析输入规范并自动生成设备驱动程序代码。
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公开(公告)号：US08665976B2
公开(公告)日：2014-03-04
申请号：US13436022
申请日：2012-03-30
IPC分类号： H04K1/10
CPC分类号： H04L27/2665 , H04L27/2032 , H04L27/2679
摘要： An Orthogonal Frequency Division Multiplexing (OFDM) receiver system for improved pilotless detection of symbol boundary of a received OFDM symbols using M-ary Phase Shift Keying (M-PSK) modulated carriers as a cost function. The OFDM receiver includes a symbol boundary detection block that detects a symbol boundary of the received OFDM symbols. The symbol boundary detection block detects the symbol boundary by computing a cost function of a second order moment of the M-PSK modulated carriers. The receiver system detects the symbol boundary for unknown information on the received OFDM symbols.
摘要翻译： 一种正交频分复用（OFDM）接收机系统，用于使用M相移相键控（M-PSK）调制载波作为成本函数来改进对接收的OFDM符号的符号边界的无监督检测。 OFDM接收机包括检测接收的OFDM符号的符号边界的符号边界检测块。 符号边界检测块通过计算M-PSK调制载波的二阶矩的成本函数来检测符号边界。 接收机系统检测接收的OFDM符号上的未知信息的符号边界。
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公开(公告)号：US20120284464A1
公开(公告)日：2012-11-08
申请号：US13461902
申请日：2012-05-02
IPC分类号： G06F12/00
CPC分类号： G06F7/483
摘要： A system for computing a block floating point scaling factor by detecting a dynamic range of an input signal in a central processing unit without additional overhead cycles is provided. The system includes a dynamic range monitoring unit that detects the dynamic range of the input signal by snooping outgoing write data and incoming memory read data of the input signal. The dynamic range monitoring unit includes a running maximum count unit that stores a least value of a count of leading zeros and leading ones, and a running minimum count that stores a least value of the count of trailing zeros. The dynamic range is detected based on the least value of the count of leading zeros and leading ones and the count of trailing zeros. The system further includes a scaling factor computation module that computes the block floating point (BFP) scaling factor based on the dynamic range.
摘要翻译： 提供了一种用于通过检测中央处理单元中的输入信号的动态范围来计算块浮点缩放因子的系统，而没有额外的开销周期。 该系统包括动态范围监测单元，其通过窥探输出写入数据和输入信号的输入存储器读取数据来检测输入信号的动态范围。 动态范围监视单元包括运行的最大计数单元，其存储前导零和前导零的计数的最小值，以及存储尾随零计数的最小值的运行最小计数。 基于前导零和前导零的计数的最小值和尾随零的计数来检测动态范围。 该系统还包括一个缩放因子计算模块，它根据动态范围计算块浮点（BFP）缩放因子。
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