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. 发明申请

US20140047251A1 METHODS, SYSTEMS AND DEVICES FOR HYBRID MEMORY MANAGEMENT 有权
标题翻译：混合记忆管理的方法，系统和设备
公开(公告)号：US20140047251A1
公开(公告)日：2014-02-13
申请号：US13568523
申请日：2012-08-07
申请人： Sudeep Ravi Kottilingal , Ramesh Ramaswamy , Suhail Jalil , Azzedine Touzni
发明人： Sudeep Ravi Kottilingal , Ramesh Ramaswamy , Suhail Jalil , Azzedine Touzni
IPC分类号： G06F1/32 , G06F12/10
CPC分类号： G06F1/3296 , G06F12/0292 , G06F12/08 , G06F12/10 , G06F12/1027 , G06F2212/151 , G06F2212/205 , Y02D10/13
摘要： In the various aspects, virtualization techniques may be used to improve performance and reduce the amount of power consumed by translating virtual memory addresses into physical addresses on a computing system having hybrid memory. In a first stage of memory translation, an operating system translates virtual addresses to intermediate physical addresses. In a second stage of memory translation, a chip or virtualization software translates the intermediate physical address to physical addresses based on the characteristics of the physical memory and the characteristics of the processes associated with the physical memory.
摘要翻译：在各个方面，可以使用虚拟化技术来提高性能并且通过将虚拟存储器地址转换为具有混合存储器的计算系统上的物理地址来减少所消耗的功率量。在内存转换的第一阶段，操作系统将虚拟地址转换为中间物理地址。在存储器转换的第二阶段，芯片或虚拟化软件基于物理存储器的特性和与物理存储器相关联的进程的特性将中间物理地址转换为物理地址。

2. 发明授权

US09047090B2 Methods, systems and devices for hybrid memory management 有权
标题翻译：用于混合内存管理的方法，系统和设备
公开(公告)号：US09047090B2
公开(公告)日：2015-06-02
申请号：US13568523
申请日：2012-08-07
申请人： Sudeep Ravi Kottilingal , Ramesh Ramaswamy , Suhail Jalil , Azzedine Touzni
发明人： Sudeep Ravi Kottilingal , Ramesh Ramaswamy , Suhail Jalil , Azzedine Touzni
IPC分类号： G06F1/32 , G06F12/10 , G06F12/02 , G06F12/08
CPC分类号： G06F1/3296 , G06F12/0292 , G06F12/08 , G06F12/10 , G06F12/1027 , G06F2212/151 , G06F2212/205 , Y02D10/13
摘要： In the various aspects, virtualization techniques may be used to improve performance and reduce the amount of power consumed by translating virtual memory addresses into physical addresses on a computing system having hybrid memory. In a first stage of memory translation, an operating system translates virtual addresses to intermediate physical addresses. In a second stage of memory translation, a chip or virtualization software translates the intermediate physical address to physical addresses based on the characteristics of the physical memory and the characteristics of the processes associated with the physical memory.
摘要翻译：在各个方面，可以使用虚拟化技术来提高性能并且通过将虚拟存储器地址转换为具有混合存储器的计算系统上的物理地址来减少所消耗的功率量。在内存转换的第一阶段，操作系统将虚拟地址转换为中间物理地址。在存储器转换的第二阶段，芯片或虚拟化软件基于物理存储器的特性和与物理存储器相关联的进程的特性将中间物理地址转换为物理地址。

3. 发明授权

US08363536B2 OFDM channel estimation 有权
标题翻译： OFDM信道估计
公开(公告)号：US08363536B2
公开(公告)日：2013-01-29
申请号：US11467730
申请日：2006-08-28
申请人： Xiaoqiang Ma , Azzedine Touzni
发明人： Xiaoqiang Ma , Azzedine Touzni
IPC分类号： H04J11/00 , H04L27/00 , H04L25/00 , H04K1/10
CPC分类号： H04L25/03159 , H04L25/022 , H04L25/0224 , H04L27/261 , H04L2025/03414
摘要： A receiver for receiving an orthogonal frequency division multiplexed (OFDM) digital video broadcast (DVB) signal including OFDM symbol sets including data symbols and pilot symbols transmitted using a plurality of sub-carriers, the OFDM DVB signal being transmitted toward the receiver via a transmission channel, the receiver including an input module configured to receive the OFDM DVB signal via the transmission channel, and a channel estimation module coupled to the input module and configured to calculate channel estimates of the transmission channel by performing Fourier transforms on the OFDM symbol sets to produce transformed symbol sets in the frequency domain and by performing minimum mean square error (MMSE) equalization on the transformed symbol sets using a sub-set of the pilot symbols in the OFDM DVB signal.
摘要翻译：一种用于接收正交频分复用（OFDM）数字视频广播（DVB）信号的接收机，其包括包括使用多个子载波发送的数据符号和导频符号的OFDM符号集，所述OFDM DVB信号经由传输被发送到接收机所述接收机包括被配置为经由所述传输信道接收所述OFDM DVB信号的输入模块，以及耦合到所述输入模块并被配置为通过对所述OFDM符号集执行傅里叶变换来计算所述传输信道的信道估计的信道估计模块，在频域中产生经变换的符号集合，并且通过使用OFDM DVB信号中的导频符号的子集对变换的符号集进行最小均方误差（MMSE）均衡。

4. 发明授权

US08081690B2 OFDM channel estimation 有权
标题翻译： OFDM信道估计
公开(公告)号：US08081690B2
公开(公告)日：2011-12-20
申请号：US12013400
申请日：2008-01-11
申请人： Xiaoqiang Ma , Azzedine Touzni
发明人： Xiaoqiang Ma , Azzedine Touzni
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/03006 , H04L5/0007 , H04L5/0048 , H04L25/0232 , H04L2025/03414
摘要： A receiver for receiving an orthogonal frequency division multiplexed (OFDM) digital video broadcast (DVB) signal including OFDM symbol sets including data symbols and pilot symbols transmitted using a plurality of sub-carriers, the OFDM DVB signal being transmitted toward the receiver via a transmission channel, the receiver including an input processor configured to receive the OFDM DVB signal via the transmission channel and to perform a Fourier transform on the OFDM DVB signal to provide a frequency-domain signal, a channel estimation processor coupled to the input processor and configured to calculate final channel estimates, the channel estimation processor being configured to perform time-domain prediction on the frequency-domain signal to provide established sub-carriers that each have corresponding initial channel estimates, and perform minimum mean square error (MMSE) equalization on the frequency-domain signal using the initial channel estimates that correspond to a sub-set of the established sub-carriers to calculate the final channel estimates.
摘要翻译：一种用于接收正交频分复用（OFDM）数字视频广播（DVB）信号的接收机，其包括包括使用多个子载波发送的数据符号和导频符号的OFDM符号集，所述OFDM DVB信号经由传输被发送到接收机所述接收机包括被配置为经由所述传输信道接收所述OFDM DVB信号并且对所述OFDM DVB信号执行傅里叶变换以提供频域信号的输入处理器，所述频域估计处理器耦合到所述输入处理器并且被配置为计算最终信道估计，所述信道估计处理器被配置为对所述频域信号执行时域预测，以提供已建立的每个具有对应的初始信道估计的子载波，并且对所述频域估计进行最小均方误差（MMSE）均衡使用与子集对应的初始信道估计的域信号的已建立的子载体，以计算最终渠道估计。

5. 发明授权

US08068549B2 Trellis decoder for decoding data stream including symbols coded with multiple convolutional codes 有权
标题翻译：网格解码器，用于解码数据流，包括用多个卷积码编码的符号
公开(公告)号：US08068549B2
公开(公告)日：2011-11-29
申请号：US12796463
申请日：2010-06-08
申请人： Haosong Fu , Azzedine Touzni , Raghuram Behara , Ajay Bhaskaran , Samir N. Hulyalkar
发明人： Haosong Fu , Azzedine Touzni , Raghuram Behara , Ajay Bhaskaran , Samir N. Hulyalkar
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H04L1/0054 , H04L1/0059 , H04L1/007 , H04L1/0071 , H04L27/02
摘要： A trellis decoder decodes a stream of encoded symbols, including symbols of a first type (e.g. symbols encoded with a first trellis code) and symbols of a second type (e.g. encoded with a second, more robust, trellis code), without storing path indicators along a trellis for symbols of the first type. In this way, limited memory may be used to store path indicators along the trellis for symbols of the second type. This allows for more accurate decoding of the symbols of the second type. For transitions from symbols of the second type to symbols of the first type, states of the trellis decoder may be stored. In this way, paths may be traced back along the trellis for trellis decoding, without the path indicators for the symbols of the first type.
摘要翻译：网格解码器解码编码符号流，包括第一类型的符号（例如，用第一格状码编码的符号）和第二类型的符号（例如，用第二，更健壮的网格码编码），而不存储路径指示符沿着格子为第一类型的符号。以这种方式，可以使用有限的存储器来沿着格子存储用于第二类型的符号的路径指示符。这允许更精确地解码第二类型的符号。对于从第二类型的符号到第一类型的符号的转换，可以存储网格解码器的状态。以这种方式，可以沿着网格跟踪路径以进行网格解码，而没有用于第一类型的符号的路径指示符。

6. 发明授权

US07860191B2 Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying) 有权
标题翻译：用于D-PSK（差分相移键控）的最佳双层相干解调
公开(公告)号：US07860191B2
公开(公告)日：2010-12-28
申请号：US11851753
申请日：2007-09-07
申请人： Yihong Qi , Azzedine Touzni
发明人： Yihong Qi , Azzedine Touzni
IPC分类号： H03D3/22 , H04L27/22
CPC分类号： H04L27/2331
摘要： A D-PSK demodulator utilizes a two-layer coherent approach to estimate the phase shift of adjacent symbols. There is generated a probability set of each received symbol being one of possible constellation values. There is also generated a probability set of each of possible phase difference between two adjacent symbols. This probability set is then converted into soft bit information according to specific mathematical operation.
摘要翻译： D-PSK解调器利用两层相干方法来估计相邻符号的相移。生成每个接收的符号是可能的星座值之一的概率集合。还产生两个相邻符号之间的每个可能相位差的概率集。然后根据具体的数学运算将该概率集转换为软比特信息。

7. 发明申请

US20080056397A1 I/Q imbalance compensation 有权
标题翻译： I / Q不平衡补偿
公开(公告)号：US20080056397A1
公开(公告)日：2008-03-06
申请号：US11895985
申请日：2007-08-27
申请人： Yan Li , Azzedine Touzni
发明人： Yan Li , Azzedine Touzni
IPC分类号： H04L27/28
CPC分类号： H04L27/3863 , H04B1/30 , H04L27/2647
摘要： A ZIF direct-conversion OFDM receiver capable of estimating and correcting an I/Q imbalance in a baseband signal. A complex down-conversion is performed on a received signal r(t). The received signal r(t) is divided into an In-phase signal (I) and Quadrature-phase signal (Q). An I/Q imbalance is introduced by the local oscillator such that the I/Q imbalance includes an amplitude imbalance factor (ρ) and phase imbalance factor (φ). The I and Q signals are amplified, filtered and digitized. The digitized I and Q signals are processed via a Fast Fourier Transform (FFT). An I/Q compensation algorithm estimates the values of the amplitude imbalance factor (ρ) and, the phase imbalance factor (φ) based on a time expectation calculation. The imbalance factors are applied to the baseband signal to recover the signal of interest x(t). The OFDM receiver outputs the signal of interest x(t) to an information display device.
摘要翻译：一种能够估计和校正基带信号中的I / Q不平衡的ZIF直接转换OFDM接收机。对接收信号r（t）执行复合下变频。接收信号r（t）被分成同相信号（I）和正交相位信号（Q）。本地振荡器引入I / Q不平衡，使得I / Q不平衡包括幅度不平衡因子（rho）和相位不平衡因子（phi）。 I和Q信号被放大，滤波和数字化。数字化的I和Q信号通过快速傅立叶变换（FFT）处理。 I / Q补偿算法基于时间期望计算来估计幅度不平衡因子（rho）的值和相位不平衡系数（phi）。将不平衡因子应用于基带信号以恢复感兴趣的信号x（t）。 OFDM接收机将感兴趣的信号x（t）输出到信息显示装置。

8. 发明授权

US08212944B2 Fast stream switching 有权
标题翻译：快速流切换
公开(公告)号：US08212944B2
公开(公告)日：2012-07-03
申请号：US12240475
申请日：2008-09-29
申请人： Azzedine Touzni , Yunjun Zhang
发明人： Azzedine Touzni , Yunjun Zhang
IPC分类号： H04N5/50
CPC分类号： H04N21/64315 , H04N5/50 , H04N5/63 , H04N21/2365 , H04N21/41407 , H04N21/4347 , H04N21/4384 , H04N21/443 , H04N21/4436
摘要： A method of fast stream switching including receiving at least one first stream at a device corresponding to at least one first program, wherein the device employs dynamic power management and is operating at a first power level; activating a selection panel; receiving a plurality of streams corresponding to a plurality of programs; and adjusting to a second power level. After a stream is selected, the non-selected streams may be deactivated and the device may return to the first power level.
摘要翻译：一种快速流切换的方法，包括在与至少一个第一程序相对应的设备处接收至少一个第一流，其中所述设备采用动态功率管理并且处于第一功率级; 激活选择面板; 接收对应于多个节目的多个流; 并调整到第二功率电平。在选择流之后，可以停用未选择的流，并且设备可以返回到第一功率电平。

9. 发明授权

US08094643B2 Dynamic power management for time division multiplexing devices 有权
标题翻译：时分多路复用器的动态电源管理
公开(公告)号：US08094643B2
公开(公告)日：2012-01-10
申请号：US12170491
申请日：2008-07-10
申请人： Yunjun Zhang , Azzedine Touzni
发明人： Yunjun Zhang , Azzedine Touzni
IPC分类号： H04B7/212
CPC分类号： H04W52/42
摘要： A method of dynamic power management in a time division multiple access (TDMA) system. The method comprising comparing each of a plurality of streams; grouping each of the plurality of streams into a plurality of powergroups, wherein each of the plurality of powergroups may comprise multiple streams, scheduling a burst transmission based on the plurality of powergroups; and adjusting the power stage based on the plurality of powergroups, wherein the system is configured to turn off selected components based on the power stage and the scheduled burst transmissions.
摘要翻译：一种时分多址（TDMA）系统中动态功率管理的方法。该方法包括比较多个流中的每一个; 将所述多个流中的每一个分组为多个功率组，其中所述多个功率组中的每一个可以包括多个流，基于所述多个功率组来调度突发传输; 以及基于所述多个功率组调整所述功率级，其中所述系统被配置为基于所述功率级和所述调度的突发传输来关闭所选择的组件。

10. 发明申请

US20100246733A1 TRELLIS DECODER FOR DECODING DATA STREAM INCLUDING SYMBOLS CODED WITH MULTIPLE CONVOLUTIONAL CODES 有权
标题翻译：用于解码数据流的TRELLIS解码器，包括用多个转换代码编码的符号
公开(公告)号：US20100246733A1
公开(公告)日：2010-09-30
申请号：US12796463
申请日：2010-06-08
申请人： Haosong Fu , Azzedine Touzni , Raghuram Behara , Ajay Bhaskaran , Samir N. Hulyalkar
发明人： Haosong Fu , Azzedine Touzni , Raghuram Behara , Ajay Bhaskaran , Samir N. Hulyalkar
IPC分类号： H04L5/12 , H04L27/06 , H03M13/03
CPC分类号： H04L1/0054 , H04L1/0059 , H04L1/007 , H04L1/0071 , H04L27/02
摘要： A trellis decoder decodes a stream of encoded symbols, including symbols of a first type (e.g. symbols encoded with a first trellis code) and symbols of a second type (e.g. encoded with a second, more robust, trellis code), without storing path indicators along a trellis for symbols of the first type. In this way, limited memory may be used to store path indicators along the trellis for symbols of the second type. This allows for more accurate decoding of the symbols of the second type. For transitions from symbols of the second type to symbols of the first type, states of the trellis decoder may be stored. In this way, paths may be traced back along the trellis for trellis decoding, without the path indicators for the symbols of the first type.
摘要翻译：网格解码器解码编码符号流，包括第一类型的符号（例如，用第一格状码编码的符号）和第二类型的符号（例如，用第二，更健壮的网格码编码），而不存储路径指示符沿着格子为第一类型的符号。以这种方式，可以使用有限的存储器来沿着格子存储用于第二类型的符号的路径指示符。这允许更精确地解码第二类型的符号。对于从第二类型的符号到第一类型的符号的转换，可以存储网格解码器的状态。以这种方式，可以沿着网格跟踪路径以进行网格解码，而没有用于第一类型的符号的路径指示符。

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