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

US08761307B1 Low-power narrow and wide band receiver system 有权
标题翻译：低功耗窄带和宽带接收机系统
公开(公告)号：US08761307B1
公开(公告)日：2014-06-24
申请号：US13156105
申请日：2011-06-08
申请人： Dumitru Mihai Ionescu , Ivan Krivokapic , Abu Amanullah , Haidong Zhu , Lichung Chu
发明人： Dumitru Mihai Ionescu , Ivan Krivokapic , Abu Amanullah , Haidong Zhu , Lichung Chu
IPC分类号： H03K9/00 , H04L27/00
CPC分类号： H04L1/0057 , H04L1/0045 , H04L1/0071
摘要： A communications device and receiver system and method to efficiently distribute functions among radio frequency (RF), analog front end (AFE) and baseband modules for ultra-low power consumption comprising a wideband receiver subsystem selectively coupled to a signal input receiving a first frequency band, a narrowband received subsystem selectively coupled to the signal input receiving a second frequency band and, a controller configured to monitor the first frequency band using the first receiver subsystem and if a wake up signal is detected using the first receiver subsystem, connect the second receiver subsystem to the signal input and tune the second receiver subsystem to a channel transmitting the wake up signal, the wake up signal including channel selection information defining the channel for subsequent communications. Wherein, the two frequency bands overlap and center on different frequencies.
摘要翻译：一种用于在射频（RF），模拟前端（AFE）和用于超低功耗的基带模块之间有效分配功能的通信设备和接收机系统和方法，包括：宽带接收机子系统，其选择性地耦合到接收第一频带的信号输入选择性地耦合到接收第二频带的信号输入的窄带接收子系统，以及配置成使用第一接收机子系统监视第一频带并且如果使用第一接收机子系统检测到唤醒信号的控制器，则将第二接收机子系统到信号输入，并将第二接收机子系统调谐到发送唤醒信号的信道，唤醒信号包括定义用于随后通信的信道的信道选择信息。其中两个频带在不同频率上重叠并居中。

2. 发明授权

US08576961B1 System and method for adaptive overlap and add length estimation 有权
标题翻译：用于自适应重叠和加长度估计的系统和方法
公开(公告)号：US08576961B1
公开(公告)日：2013-11-05
申请号：US12484893
申请日：2009-06-15
申请人： Haidong Zhu , Dumitru Mihai Ionescu , Abu Amanullah
发明人： Haidong Zhu , Dumitru Mihai Ionescu , Abu Amanullah
IPC分类号： H04L27/06
CPC分类号： H04L27/2656 , H04L25/0224 , H04L27/2663 , H04L27/2665 , H04L27/2695
摘要： A method for determining an overlap and add length estimate comprises determining a plurality of correlation values of a plurality of ordered frequency domain samples obtained from a data frame; comparing the correlation values of a first subset of the samples to a first predetermined threshold to determine a first edge sample; comparing the correlation values of a second subset of the samples to a second predetermined threshold to determine a second edge sample; using the first and second edge samples to determine an overlap and add length estimate; and providing the overlap and add length estimate to an overlap and add circuit.
摘要翻译：一种用于确定重叠和加法长度估计的方法包括确定从数据帧获得的多个有序频域样本的多个相关值; 将样本的第一子集的相关值与第一预定阈值进行比较，以确定第一边缘样本; 将样本的第二子集的相关值与第二预定阈值进行比较，以确定第二边缘样本; 使用第一和第二边缘样本来确定重叠和加法长度估计; 并将重叠和加法长度估计提供给重叠和加法电路。

3. 发明授权

US08345783B1 Phase tracking system and method 有权
标题翻译：相位跟踪系统及方法
公开(公告)号：US08345783B1
公开(公告)日：2013-01-01
申请号：US13077968
申请日：2011-03-31
申请人： Dumitru Mihai Ionescu , Haidong Zhu , Abu Amanullah
发明人： Dumitru Mihai Ionescu , Haidong Zhu , Abu Amanullah
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L27/2657 , H04J11/0066 , H04L27/2675 , H04L27/2691
摘要： Phase tracking in an OFDM symbol comprises determining a sufficient statistic for CFO and SFO estimation from a differential metric between a current OFDM symbol and a previous OFDM symbol transmitted on the same frequency band. The sufficient statistics corresponding to positive pilot tones are combined with those corresponding to negative pilot tones to estimate the CFO and SFO.
摘要翻译： OFDM符号中的相位跟踪包括从当前OFDM符号和在相同频带上发送的先前OFDM符号之间的差分度量确定用于CFO和SFO估计的足够的统计量。与正导频音相对应的足够的统计量与与负导频音相对应的统计量结合起来来估计CFO和SFO。

4. 发明申请

US20120307839A1 METHOD FOR RECEIVING CHANNEL SELECTION INFORMATION 审中-公开
标题翻译：接收频道选择信息的方法
公开(公告)号：US20120307839A1
公开(公告)日：2012-12-06
申请号：US13149727
申请日：2011-05-31
申请人： Dumitru Mihai Ionescu , Abu Amanullah , Haidong Zhu
发明人： Dumitru Mihai Ionescu , Abu Amanullah , Haidong Zhu
IPC分类号： H04L12/28
CPC分类号： H04L5/0033 , A61N1/3727 , A61N1/3956 , H04W84/20
摘要： A master device selects a channel from a band of channels for communications with a slave device. The master transmits information identifying the selected to the slave device using a packet modulated as a series of energy pulses on the selected channel. The slave device performs wideband energy detection on the band of channels and receives the modulated pulses. The slave device decodes the modulated pulses to retrieve the selected channel, and tunes to the selected channel for further communications.
摘要翻译：主设备从用于与从设备通信的信道频带中选择一个信道。主设备使用在所选择的信道上作为一系列能量脉冲调制的分组来将识别所选择的信息发送到从设备。从设备对信道频带进行宽带能量检测，并接收调制脉冲。从设备对调制的脉冲进行解码以检索所选择的信道，并调谐到所选择的信道用于进一步的通信。

5. 发明申请

US20060023636A1 Detector and method for estimating data probability in a multi-channel receiver 有权
标题翻译：用于估计多通道接收机中的数据概率的检测器和方法
公开(公告)号：US20060023636A1
公开(公告)日：2006-02-02
申请号：US11177938
申请日：2005-07-07
申请人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Laraway
发明人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Laraway
IPC分类号： H04J1/16
CPC分类号： H04L1/005 , H04B1/7105 , H04L1/0052 , H04L1/0631
摘要： A detector and method for estimating channel data probability in a multi-user or multiple-input multiple-output communication system includes summing conditional bit probabilities conditioned on hypothetical channel data patterns over stochastically selected hypothetical channel data patterns. Various detailed hardware structures and circuits are also described.
摘要翻译：一种用于在多用户或多输入多输出通信系统中估计信道数据概率的检测器和方法包括：对随机选择的假想信道数据模式进行假设信道数据模式的条件位概率求和。还描述了各种详细的硬件结构和电路。

6. 发明授权

US07813438B2 Detector and method for estimating data probability in a multi-channel receiver 有权
标题翻译：用于估计多通道接收机中的数据概率的检测器和方法
公开(公告)号：US07813438B2
公开(公告)日：2010-10-12
申请号：US12209143
申请日：2008-09-11
申请人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
发明人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
IPC分类号： H04L5/12
CPC分类号： H04L1/005 , H04B1/7105 , H04L1/0052 , H04L1/0631
摘要： A detector and method for estimating channel data probability in a multi-user or multiple-input multiple-output communication system includes summing conditional bit probabilities conditioned on hypothetical channel data patterns over stochastically selected hypothetical channel data patterns. Various detailed hardware structures and circuits are also described.
摘要翻译：一种用于在多用户或多输入多输出通信系统中估计信道数据概率的检测器和方法包括：对随机选择的假想信道数据模式进行假设信道数据模式的条件位概率求和。还描述了各种详细的硬件结构和电路。

7. 发明申请

US20090003483A1 Detector and Method for Estimating Data Probability in a Multi-Channel Receiver 有权
标题翻译：用于估计多信道接收机中数据概率的检测器和方法
公开(公告)号：US20090003483A1
公开(公告)日：2009-01-01
申请号：US12209143
申请日：2008-09-11
申请人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
发明人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
IPC分类号： H04L5/12
CPC分类号： H04L1/005 , H04B1/7105 , H04L1/0052 , H04L1/0631
摘要： A detector and method for estimating channel data probability in a multi-user or multiple-input multiple-output communication system includes summing conditional bit probabilities conditioned on hypothetical channel data patterns over stochastically selected hypothetical channel data patterns. Various detailed hardware structures and circuits are also described.
摘要翻译：一种用于在多用户或多输入多输出通信系统中估计信道数据概率的检测器和方法包括：对随机选择的假想信道数据模式进行假设信道数据模式的条件位概率求和。还描述了各种详细的硬件结构和电路。

8. 发明授权

US07457367B2 Detector and method for estimating data probability in a multi-channel receiver 有权
标题翻译：用于估计多通道接收机中的数据概率的检测器和方法
公开(公告)号：US07457367B2
公开(公告)日：2008-11-25
申请号：US11177938
申请日：2005-07-07
申请人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
发明人： Behrouz Farhang-Boroujeny , Haidong Zhu , Zhenning Shi , Stephen Andrew Laraway
IPC分类号： H04L5/12 , H04L23/02
CPC分类号： H04L1/005 , H04B1/7105 , H04L1/0052 , H04L1/0631
摘要： A detector and method for estimating channel data probability in a multi-user or multiple-input multiple-output communication system includes summing conditional bit probabilities conditioned on hypothetical channel data patterns over stochastically selected hypothetical channel data patterns. Various detailed hardware structures and circuits are also described.
摘要翻译：一种用于在多用户或多输入多输出通信系统中估计信道数据概率的检测器和方法包括：对随机选择的假想信道数据模式进行假设信道数据模式的条件位概率求和。还描述了各种详细的硬件结构和电路。

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