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1. 发明授权

US06266385B1 Elastic store for wireless communication systems 失效
标题翻译：无线通信系统弹性存储
公开(公告)号：US06266385B1
公开(公告)日：2001-07-24
申请号：US08997150
申请日：1997-12-23
申请人： Joseph J. Roy , Cathal O'Scolai , Baya Hatim , Ismail Lakkis , Saeid Safavi , Deirdre O'Shea , Hoang Xuan Bui , Masood K. Tayebi
发明人： Joseph J. Roy , Cathal O'Scolai , Baya Hatim , Ismail Lakkis , Saeid Safavi , Deirdre O'Shea , Hoang Xuan Bui , Masood K. Tayebi
IPC分类号： H04L700
CPC分类号： H04W84/14 , H04J3/0605 , H04J3/07
摘要： A system and method of buffering data of a wireless communication system. The system and method maintain synchronization, end-to-end signaling and coding overhead bits needed to encapsulate data frames sent over wireless media. Additionally, the system and method compensate for transmitting and receiving clock variations. In one embodiment, the system uses framing of data with preamble, stuffing and signaling bits transmitted synchronously at a high data rate in the Industrial, Scientific and Medical (ISM) bands.
摘要翻译：一种缓冲无线通信系统的数据的系统和方法。该系统和方法保持封装通过无线介质发送的数据帧所需的同步，端到端信令和编码开销比特。另外，该系统和方法补偿发送和接收时钟变化。在一个实施例中，系统使用在工业，科学和医疗（ISM）频带中以高数据速率同步传输的前同步码，填充和信令位的数据成帧。

2. 发明授权

US06456678B2 Elastic store for wireless communication systems 有权
标题翻译：无线通信系统弹性存储
公开(公告)号：US06456678B2
公开(公告)日：2002-09-24
申请号：US09782262
申请日：2001-02-13
申请人： Joseph J. Roy , Cathal O'Scolai , Baya Hatim , Ismail Lakkis , Saeid Safavi , Deirdre O'Shea , Hoang Xuan Bui , Masood K. Tayebi
发明人： Joseph J. Roy , Cathal O'Scolai , Baya Hatim , Ismail Lakkis , Saeid Safavi , Deirdre O'Shea , Hoang Xuan Bui , Masood K. Tayebi
IPC分类号： H04L700
CPC分类号： H04W84/14 , H04J3/0605 , H04J3/07
摘要： A system and method of buffering data of a wireless communication system. The system and method maintain synchronization, end-to-end signaling and coding overhead bits needed to encapsulate data frames sent over wireless media. Additionally, the system and method compensate for transmitting and receiving clock variations. In one embodiment, the system uses framing of data with preamble, stuffing and signaling bits transmitted synchronously at a high data rate in the Industrial, Scientific and Medical (ISM) bands.
摘要翻译：一种缓冲无线通信系统的数据的系统和方法。该系统和方法保持封装通过无线介质发送的数据帧所需的同步，端到端信令和编码开销比特。另外，该系统和方法补偿发送和接收时钟变化。在一个实施例中，系统使用在工业，科学和医疗（ISM）频带中以高数据速率同步传输的前同步码，填充和信令位的数据成帧。

3. 发明授权

US07990918B2 Wireless T/E transceiver frame and signaling controller 有权
标题翻译：无线T / E收发机帧和信令控制器
公开(公告)号：US07990918B2
公开(公告)日：2011-08-02
申请号：US11438911
申请日：2006-05-23
申请人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
发明人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
IPC分类号： H04W4/00
CPC分类号： H04W84/14 , H04J3/0685 , H04J3/1623
摘要： A system and method providing a frame structure to received channel data sent over an air interface of a wireless communication system. The system and method may allow compensation for transmitting and receiving frequency variations, synchronization at the receiver, and provides a virtual signaling channel which may be used for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.
摘要翻译：一种为通过无线通信系统的空中接口发送的接收信道数据提供帧结构的系统和方法。系统和方法可以允许对接收机发射和接收频率变化，同步进行补偿，并提供可用于系统报警和状态的虚拟信令信道。在一个实施例中，系统使用位填充，帧前同步码和信令前同步码在ISM频带中以高数据速率传输数据。

4. 发明授权

US07050409B1 Wireless T/E transceiver frame and signaling controller 有权
标题翻译：无线T / E收发机帧和信令控制器
公开(公告)号：US07050409B1
公开(公告)日：2006-05-23
申请号：US10078564
申请日：2002-02-15
申请人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
发明人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
IPC分类号： H04Q7/00
CPC分类号： H04W84/14 , H04J3/0685 , H04J3/1623
摘要： A system and method providing a frame structure to received channel data sent over an air interface of a wireless communication system. The system and method may allow compensation for transmitting and receiving frequency variations, synchronization at the receiver, and provides a virtual signaling channel which may be used for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.
摘要翻译：一种为通过无线通信系统的空中接口发送的接收信道数据提供帧结构的系统和方法。系统和方法可以允许对接收机发射和接收频率变化，同步进行补偿，并提供可用于系统报警和状态的虚拟信令信道。在一个实施例中，系统使用位填充，帧前同步码和信令前同步码在ISM频带中以高数据速率传输数据。

5. 发明授权

US06850582B2 Frame synchronization and detection technique for a digital receiver 有权
标题翻译：数字接收机的帧同步和检测技术
公开(公告)号：US06850582B2
公开(公告)日：2005-02-01
申请号：US10392115
申请日：2003-03-17
申请人： Deirdre O'Shea , Ismail Lakkis , Saeid Safavi , Masood K. Tayebi , Baya Hatim , Cathal O'Scolai
发明人： Deirdre O'Shea , Ismail Lakkis , Saeid Safavi , Masood K. Tayebi , Baya Hatim , Cathal O'Scolai
IPC分类号： H04J13/00 , H04W84/14 , H04L7/00
CPC分类号： H04W84/14
摘要： A system and method of frame synchronization and detection for use in a digital receiver within a communication system. The digital radio communication system includes a receiver for receiving a signal stream that includes data frames. Each frame includes an arbitrary data sequence and a unique word. A predetermined number of contiguous bits from the unique word are appended to the beginning of each data frame to identify the start of the data frame. The communication system comprises a sampling circuit for sampling symbol levels, a filter to implement the cross correlation of the received signal with the stored unique word, a threshold detector circuit to detect when frame synchronization is achieved as well as additional circuitry to refine the estimate from the threshold detection circuit. The design utilizes coherent demodulation. However, the design is equally applicable to non-coherent demodulation. In one embodiment, the sampling rate is assumed to be two samples per symbol. However, the functionality of the proposed design is not limited to two samples per symbol.
摘要翻译：用于通信系统内的数字接收机中的帧同步和检测的系统和方法。数字无线电通信系统包括用于接收包括数据帧的信号流的接收机。每帧包括任意数据序列和唯一字。来自唯一字的预定数量的连续位被附加到每个数据帧的开头，以标识数据帧的开始。通信系统包括用于对符号电平进行采样的采样电路，用于实现接收信号与存储的唯一字的互相关的滤波器，用于检测何时实现帧同步的阈值检测器电路以及用于从阈值检测电路。该设计采用相干解调。然而，该设计同样适用于非相干解调。在一个实施例中，假设采样率是每个符号的两个样本。然而，所提出的设计的功能不限于每个符号两个样本。

6. 发明授权

US06563856B1 Frame synchronization and detection technique for a digital receiver 失效
标题翻译：用于数字发射机的组合器电路和方法
公开(公告)号：US06563856B1
公开(公告)日：2003-05-13
申请号：US09111812
申请日：1998-07-08
申请人： Deirdre O'Shea , Ismail Lakkis , Saeid Safavi , Masood K. Tayebi , Baya Hatim , Cathal O'Scolai
发明人： Deirdre O'Shea , Ismail Lakkis , Saeid Safavi , Masood K. Tayebi , Baya Hatim , Cathal O'Scolai
IPC分类号： H04B169
CPC分类号： H04W84/14
摘要： A combiner circuit and method for use in a digital transmitter within a communication system. The combiner circuit receives a number of signal streams that include data frames. Each frame includes an arbitrary data sequence and portions of a unique word. The combiner circuit comprises a plurality of digital preamble circuits which append a predetermined number of contiguous bits from the unique word to each data frame. The system utilizes a plurality of spreaders, shifters, and a summer to further modify the data stream for transmission.
摘要翻译：一种用于通信系统内的数字发射机的组合器电路和方法。组合电路接收包括数据帧的多个信号流。每帧包括任意数据序列和唯一字的部分。组合器电路包括多个数字前置电路，其将来自唯一字的预定数量的连续位附加到每个数据帧。该系统利用多个扩展器，移位器和加法器来进一步修改数据流以进行传输。

7. 发明授权

US06373827B1 Wireless multimedia carrier system 失效
标题翻译：无线多媒体载体系统
公开(公告)号：US06373827B1
公开(公告)日：2002-04-16
申请号：US08954217
申请日：1997-10-20
申请人： Masood K. Tayebi , Baya Hatim , Saeid Safavi , Chi Nche , Ismail Lakkis , Cathal O'Scolai , Deirdre O'Shea , Joseph J. Roy , Ulun Karacaoglu , Hoang Xuan Bui
发明人： Masood K. Tayebi , Baya Hatim , Saeid Safavi , Chi Nche , Ismail Lakkis , Cathal O'Scolai , Deirdre O'Shea , Joseph J. Roy , Ulun Karacaoglu , Hoang Xuan Bui
IPC分类号： H04B700
CPC分类号： H04W84/14
摘要： A system and method for communication of radio frequency (RF) signals over multimedia signal paths. The invention provides a wireless multimedia carrier (WMC) system capable of receiving a variety of standardized input signals, such as DS0/E0, T1/E1, T2/E2, and/or T3/E3 for transmission using RF channels. The WMC system selectively employs time division multiple access (TDMA) and/or code division multiple access (CDMA) technology. The WMC system transmits the various signal inputs using RF carriers, receives the transmitted signals, and converts the signals to the desired signaling scheme (standard) for forwarding to intended destinations.
摘要翻译：一种用于在多媒体信号路径上通信射频（RF）信号的系统和方法。本发明提供一种无线多媒体载体（WMC）系统，其能够接收各种标准化的输入信号，例如用于使用RF信道传输的诸如DS0 / E0，T1 / E1，T2 / E2和/或T3 / E3。 WMC系统选择性地采用时分多址（TDMA）和/或码分多址（CDMA）技术。 WMC系统使用RF载波传输各种信号输入，接收发送的信号，并将信号转换为所需的信令方案（标准），以转发到预期的目的地。

8. 发明授权

US06370158B1 Wireless T/E Transceiver frame signaling subcontroller 失效
标题翻译：无线T / E收发器帧和信令子控制器
公开(公告)号：US06370158B1
公开(公告)日：2002-04-09
申请号：US08970729
申请日：1997-11-14
申请人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
发明人： Cathal O'Scolai , Baya Hatim , Joseph J. Roy , Saeid Safavi , Ismail Lakkis , Hoang Xuan Bui , Deirdre O'Shea , Masood K. Tayebi
IPC分类号： H04J306
CPC分类号： H04W84/14 , H04J3/0685 , H04J3/1623
摘要： A system and method providing a structure to the data sent over the air interface of a wireless communication system. The system and method allow compensation for transmitting and receiving frequency variations, synchronization at the receiver and provision of a virtual signaling channel for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.
摘要翻译：一种为通过无线通信系统的空中接口发送的数据提供结构的系统和方法。该系统和方法允许补偿发射和接收频率变化，在接收机处的同步和为系统报警和状态提供虚拟信令信道。在一个实施例中，系统使用位填充，帧前同步码和信令前同步码在ISM频带中以高数据速率传输数据。

9. 发明申请

US20060268775A1 Wireless T/E transceiver frame and signaling controller 有权
公开(公告)号：US20060268775A1
公开(公告)日：2006-11-30
申请号：US11438911
申请日：2006-05-23
申请人： Cathal O'Scolai , Baya Hatim , Joseph Roy , Saeid Safavi , Ismail Lakkis , Hoang Bui , Deirdre O'Shea , Masood Tayebi
发明人： Cathal O'Scolai , Baya Hatim , Joseph Roy , Saeid Safavi , Ismail Lakkis , Hoang Bui , Deirdre O'Shea , Masood Tayebi
IPC分类号： H04Q7/00
CPC分类号： H04W84/14 , H04J3/0685 , H04J3/1623
摘要： A system and method providing a frame structure to received channel data sent over an air interface of a wireless communication system. The system and method may allow compensation for transmitting and receiving frequency variations, synchronization at the receiver, and provides a virtual signaling channel which may be used for system alarms and status. In one embodiment, the system uses bit stuffing, a frame preamble and a signaling preamble to transmit data at a high data rate in the ISM band.

10. 发明授权

US06768780B1 Non-data aided maximum likelihood based feedforward timing synchronization method 有权
标题翻译：基于非数据辅助最大似然的前馈定时同步方法
公开(公告)号：US06768780B1
公开(公告)日：2004-07-27
申请号：US10060546
申请日：2002-01-29
申请人： Ismail Lakkis , Deirdre O'Shea , Masood K. Tayebi , Baya Hatim
发明人： Ismail Lakkis , Deirdre O'Shea , Masood K. Tayebi , Baya Hatim
IPC分类号： H04L700
CPC分类号： H04W84/14 , H04L7/0029 , H04L7/027
摘要： A system and method of timing estimation for use in a digital receiver within a communication system. An algorithm calculates the timing offset by evaluating the spectral component at the symbol clock frequency. The spectral component is generated using a nonlinearity operation. However, the maximum likelihood non-data-aided timing estimation equation reveals an alternative approximation for the logarithm of the hyperbolic cosine function present in the maximum likelihood equation, which offers a compromise between implementation complexity and variance performance. The estimated timing offset is then fed to a timing correction unit, which calculates the data samples corresponding to the sampling clock phase and removes the redundant samples. The ideal sampled signal is then forwarded to additional synchronization and functional units for further processing.
摘要翻译：用于在通信系统内的数字接收机中使用的定时估计的系统和方法。算法通过评估符号时钟频率的频谱分量来计算定时偏移。使用非线性运算产生频谱分量。然而，最大似然非数据辅助定时估计方程揭示了最大似然方程中存在的双曲余弦函数的对数的替代近似，这提供了实现复杂度和方差性能之间的折中。然后将估计的定时偏移馈送到定时校正单元，该定时校正单元计算对应于采样时钟相位的数据采样并且去除冗余采样。然后将理想采样信号转发到附加的同步和功能单元进行进一步处理。

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