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1. 发明授权

US06324228B1 Method and apparatus for robust frequency tracking in strong channel interference using carrier signal relative strength and frequency error 失效
标题翻译：使用载波信号相对强度和频率误差对强信道干扰进行鲁棒频率跟踪的方法和装置
公开(公告)号：US06324228B1
公开(公告)日：2001-11-27
申请号：US09223462
申请日：1998-12-30
申请人： Matthew C. Millward , Prasanna Desai
发明人： Matthew C. Millward , Prasanna Desai
IPC分类号： H04L2708
CPC分类号： H04L27/0014 , H04B17/318 , H04L2027/0028 , H04L2027/0055 , H04L2027/0067
摘要： The present invention is a method and apparatus for tracking a frequency of a signal. The received signal is converted to an intermediate frequency (IF) signal using a frequency reference. An automatic gain control (AGC) is provided to the IF signal. The AGC generates a control value. The magnitude and phase parameters of the IF signal are estimated. A frequency error is estimated based on the phase parameter. A control quantity is generated based of the control value, the estimated magnitude parameter and the estimated frequency error. The control quantity adjusts the frequency reference.
摘要翻译：本发明是用于跟踪信号频率的方法和装置。使用频率参考将接收的信号转换成中频（IF）信号。对IF信号提供自动增益控制（AGC）。 AGC产生控制值。估计IF信号的幅度和相位参数。基于相位参数估计频率误差。基于控制值，估计的幅度参数和估计的频率误差来生成控制量。控制量调节频率给定。

2. 发明授权

US08723729B2 Angle of arrival and/or range estimation within a wireless communication device 有权
公开(公告)号：US08723729B2
公开(公告)日：2014-05-13
申请号：US12787256
申请日：2010-05-25
申请人： Prasanna Desai , Brima B. Ibrahim , Siukai Mak
发明人： Prasanna Desai , Brima B. Ibrahim , Siukai Mak
IPC分类号： G01S5/04
CPC分类号： G01S3/14 , G01S3/50 , G01S5/12 , G01S11/06 , H04W64/006
摘要： Angle of arrival and/or range estimation within a wireless communication device. Appropriate processing of communications received by a wireless communication device is performed to determine the angle of arrival of the communication (e.g., with respect to some coordinate basis of the wireless communication device). Also, appropriate processing of the communications may be performed in accordance with range estimation as performed by the wireless communication device to determine the distance between the transmitting and receiving wireless communication devices. There are two separate modes of packet processing operations that may be performed: (1) when contents of the received packet are known, and (2) when contents of the received packet are unknown. The wireless communication device includes a number of antenna, and a switching mechanism switches from among the various antennae capitalizing on the spatial diversity of the antennae to generate a multi-antenna signal.

3. 发明授权

US08693950B2 Method and system for transmit power control techniques to reduce mutual interference between coexistent wireless networks device 有权
标题翻译：用于传输功率控制技术的方法和系统，以减少共存无线网络设备之间的相互干扰
公开(公告)号：US08693950B2
公开(公告)日：2014-04-08
申请号：US11387541
申请日：2006-03-23
申请人： Prasanna Desai
发明人： Prasanna Desai
IPC分类号： H04B7/00
CPC分类号： H04W52/243 , H04W52/242 , H04W72/1215 , H04W88/06
摘要： Aspects of a method and system for transmit power control techniques to reduce mutual interference between coexistent wireless networks are provided. A coexistence terminal comprising a WLAN radio and a Bluetooth radio operating as a master device may transmit signals to one or more remote controllers comprising a slave Bluetooth radio to increase transmission power when the isolation between the coexistence terminal's WLAN and Bluetooth radios is below a threshold. Link manager protocol (LMP) signals may be utilized for changing the transmission power. When the isolation increases above the threshold, signals may be generated to reduce the remote controllers' transmission power. In some instances, in addition to increasing the transmission power of remote controllers, the transmission power of the Bluetooth radio or the WLAN radio may be reduced. The reduced Bluetooth or WLAN radio transmission power may be increased when the radio isolation in the coexistence terminal increases.
摘要翻译：提供了用于发送功率控制技术的方法和系统的方面，以减少共存无线网络之间的相互干扰。包括WLAN无线电和作为主设备的蓝牙无线电的共存终端可以在包括从属蓝牙无线电的一个或多个远程控制器中发送信号，以在共存终端的WLAN和蓝牙无线电之间的隔离低于阈值时增加发射功率。链路管理协议（LMP）信号可用于改变传输功率。当隔离度增加到阈值以上时，可能产生信号以减少遥控器的传输功率。在一些情况下，除了增加遥控器的发射功率之外，可以减少蓝牙无线电或WLAN无线电的发射功率。当共存终端中的无线电隔离增加时，可以增加减少的蓝牙或WLAN无线电传输功率。

4. 发明授权

US08554270B2 Systems and methods for enabling coexistence of multiple wireless components operating in the same frequency band 有权
标题翻译：实现在相同频带中工作的多个无线组件共存的系统和方法
公开(公告)号：US08554270B2
公开(公告)日：2013-10-08
申请号：US11838682
申请日：2007-08-14
申请人： Prasanna Desai , Kelly Coffey , Robert Hulvey , Mark Gonikberg
发明人： Prasanna Desai , Kelly Coffey , Robert Hulvey , Mark Gonikberg
IPC分类号： H04M1/00
CPC分类号： H04W72/1215 , H04W8/08 , H04W72/1242 , H04W88/06
摘要： Methods and systems for enabling coexistence of multiple potentially interfering wireless components in a device are provided. A device may include a wireless module using a proprietary protocol and one or more modules using standardized protocols. The device further includes a coexistence arbitration module configured to arbitrate access to a shared communication medium among the wireless modules based on assertion of medium access requests by the modules and the associated priority of the asserted medium access requests. When multiple medium access requests have the same priority, precedence for access to the shared medium is determined based on additional criteria. The coexistence arbitration module may be a separate module or may be integrated into another module or distributed among the modules. The device may include a host processor for altering transmission characteristics of a module to increase the likelihood that another module can receive data within a reasonable time period.
摘要翻译：提供了用于实现设备中多个潜在干扰无线组件共存的方法和系统。设备可以包括使用专有协议的无线模块和使用标准化协议的一个或多个模块。所述设备还包括：共存仲裁模块，被配置为基于所述模块的介质访问请求的断言以及所述被介质访问请求的相关联的优先级来仲裁对所述无线模块之间的共享通信介质的访问。当多个介质访问请求具有相同的优先级时，基于附加标准来确定访问共享介质的优先级。共存仲裁模块可以是单独的模块，或者可以集成到另一模块中或分布在模块中。该设备可以包括用于改变模块的传输特性的主机处理器，以增加另一个模块可以在合理的时间段内接收数据的可能性。

5. 发明授权

US08086264B2 Shared processing between wireless interface devices of a communication device 有权
标题翻译：通信设备的无线接口设备之间的共享处理
公开(公告)号：US08086264B2
公开(公告)日：2011-12-27
申请号：US12869320
申请日：2010-08-26
申请人： Prasanna Desai
发明人： Prasanna Desai
IPC分类号： G06F15/16
CPC分类号： H04W72/1215 , H04W88/06
摘要： An integrated circuit includes a first wireless interface circuit that transceives first packetized data with a first external device in accordance with a first wireless communication protocol, wherein the first wireless interface circuit includes a first processing module that processes the first packetized data. A second wireless interface circuit, coupled to the first wireless interface device, transceives second packetized data with a second external device in accordance with a second wireless communication protocol, wherein the second wireless interface circuit includes a second processing module that processes the second packetized data, wherein the second wireless interface circuit is operable to assign a first processing task to the first processing module and wherein the first processing task relates to the processing of the second packetized data.
摘要翻译：集成电路包括：第一无线接口电路，其根据第一无线通信协议与第一外部设备收发第一分组化数据，其中第一无线接口电路包括处理第一分组数据的第一处理模块。耦合到第一无线接口设备的第二无线接口电路根据第二无线通信协议用第二外部设备收发第二分组化数据，其中第二无线接口电路包括处理第二分组数据的第二处理模块，其中所述第二无线接口电路可操作以将第一处理任务分配给所述第一处理模块，并且其中所述第一处理任务涉及所述第二分组化数据的处理。

6. 发明授权

US07995687B2 Fast and reliable channel classification algorithms in bluetooth networks to detect and avoid 2.4 GHz interferers 有权
标题翻译：在蓝牙网络中快速可靠的信道分类算法来检测和避免2.4 GHz干扰信号
公开(公告)号：US07995687B2
公开(公告)日：2011-08-09
申请号：US11682052
申请日：2007-03-05
申请人： Prasanna Desai , Sven Jerlhagan , Brima Ibrahim , Siukai Mak , Asif Grushkevich , John Walley
发明人： Prasanna Desai , Sven Jerlhagan , Brima Ibrahim , Siukai Mak , Asif Grushkevich , John Walley
IPC分类号： H03D1/04 , H03D1/06 , H03K5/01 , H03K6/04 , H04L25/08 , H04L1/00 , H04B15/00
CPC分类号： H04B1/715 , H04B2001/7154 , H04W28/04 , H04W84/18
摘要： Aspects of a method and system for fast and reliable channel classification in Bluetooth networks to detect and avoid channel interferers may include one or more processors that may enable performance of signal strength measurements on received Bluetooth signals at a current selected frequency. At least one data packet received via the Bluetooth signals may be processed to determine the presence of bit errors. The processor(s) may enable characterization of the Bluetooth signals at the current selected frequency based on the signal strength measurements and/or the processing of the data packets. The current selected frequency may be selected during adaptive frequency hopping based on the characterization.
摘要翻译：用于在蓝牙网络中快速可靠的信道分类以检测和避免信道干扰的方法和系统的方面可以包括一个或多个处理器，其可以使得能够以当前选择的频率对所接收的蓝牙信号执行信号强度测量。可以处理经由蓝牙信号接收的至少一个数据分组以确定位错误的存在。处理器可以基于信号强度测量和/或数据分组的处理来启用当前所选频率的蓝牙信号的表征。可以在基于表征的自适应跳频期间选择当前选择的频率。

7. 发明授权

US07881746B2 Shared processing between wireless interface devices of a host device 失效
标题翻译：在主机设备的无线接口设备之间进行共享处理
公开(公告)号：US07881746B2
公开(公告)日：2011-02-01
申请号：US11801533
申请日：2007-05-10
申请人： Prasanna Desai
发明人： Prasanna Desai
IPC分类号： G06F15/16
CPC分类号： H04W72/1215 , H04W88/06
摘要： An integrated circuit includes a first wireless interface circuit that transceives first packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless interface circuit includes a first processing module that processes the first packetized data. A second wireless interface circuit, coupled to the first wireless interface device, transceives second packetized data between the host module and a second external device in accordance with a second wireless communication protocol, wherein the second wireless interface circuit includes a second processing module that processes the second packetized data, wherein the second wireless interface circuit is operable to assign a first processing task to the first processing module and wherein the first processing task relates to the processing of the second packetized data.
摘要翻译：集成电路包括：第一无线接口电路，其根据第一无线通信协议在主机模块和第一外部设备之间收发第一分组化数据，其中所述第一无线接口电路包括处理所述第一分组数据的第一处理模块。耦合到第一无线接口设备的第二无线接口电路根据第二无线通信协议在主机模块和第二外部设备之间收发第二分组化数据，其中第二无线接口电路包括第二处理模块，其处理第二分组化数据，其中所述第二无线接口电路可操作以将第一处理任务分配给所述第一处理模块，并且其中所述第一处理任务涉及所述第二分组化数据的处理。

8. 发明申请

US20100303183A1 Direct detection of wireless interferers in a communication device for multiple modulation types 有权
标题翻译：在多种调制类型的通信设备中直接检测无线干扰源
公开(公告)号：US20100303183A1
公开(公告)日：2010-12-02
申请号：US12684765
申请日：2010-01-08
申请人： Prasanna Desai
发明人： Prasanna Desai
IPC分类号： H04B1/10
CPC分类号： H04B1/1027 , H04L5/0062
摘要： Direct detection of wireless interferers in a communication device for multiple modulation types. One or more radios implemented within a communication device is/are operative to receive and process wireless communications. A wireless communication signal is processed to extract symbols there from. Various symbols groups are processed in accordance with correlation processing to identify potential interferers (e.g., other communication devices using common portions of frequency spectra). Alternatively, matched filter processing (e.g., using a Barker matched filter in some embodiments) operates on the various symbol groups to identify some potential interferers. Various combinations of correlation processing and matched filter processing may be employed in other instances (e.g., using any of a desired means of comparison, combining, etc.) in considering interferers identified in accordance with each of these two means. Also, re-identification and re-characterization of possible interferers may be performed subsequently to remove or re-admit frequency spectra for use in communications.
摘要翻译：在多种调制类型的通信设备中直接检测无线干扰源。在通信设备内实现的一个或多个无线电装置可操作以接收和处理无线通信。处理无线通信信号以从中提取符号。根据相关处理来处理各种符号组，以识别潜在的干扰源（例如，使用频谱的公共部分的其他通信设备）。或者，匹配滤波处理（例如，在一些实施例中使用巴克匹配滤波器）对各种符号组进行操作以识别一些潜在的干扰源。在其他情况下可以采用相关处理和匹配滤波处理的各种组合（例如，使用任何所需的比较方法，组合等）来考虑根据这两种装置中的每一种识别的干扰源。此外，可以随后执行可能的干扰源的重新识别和重新表征以去除或重新接收用于通信的频谱。

9. 发明申请

US20100303049A1 Hybrid location determination for wireless communication device 有权
标题翻译：无线通信设备的混合位置确定
公开(公告)号：US20100303049A1
公开(公告)日：2010-12-02
申请号：US12843202
申请日：2010-07-26
申请人： Brima B. Ibrahim , Prasanna Desai , Donald L. Fuchs , Craig Ochikubo
发明人： Brima B. Ibrahim , Prasanna Desai , Donald L. Fuchs , Craig Ochikubo
IPC分类号： H04W8/00
CPC分类号： H04W4/023 , H04L67/18 , H04W4/02 , H04W4/50 , H04W8/26 , H04W84/12 , H04W88/06
摘要： Hybrid location determination for wireless communication device. Various services that may be used by a wireless communication device within a particular location may be referred to as location based services (LBS). As such, means by which the location of a wireless communication device that may use such available services, within such a locale, is made by using more than one type of location determination approach. For example, a wireless communication device includes communication capability (e.g., RX and TX) in accordance with a first communication protocol (e.g., Bluetooth) and also includes a communication capability (e.g., RX only) in accordance with a second communication protocol (e.g., WiFi/WLAN (Wireless Local Area Network)). The RX capability is operative to assist in location determination for the wireless communication device based on knowledge of at least one wireless communication device that communicates with the wireless communication device.
摘要翻译：无线通信设备的混合位置确定。可以将特定位置内的无线通信设备使用的各种服务称为基于位置的服务（LBS）。因此，通过使用多于一种类型的位置确定方法来进行在这样的区域内可以使用这种可用服务的无线通信设备的位置的方法。例如，无线通信设备包括根据第一通信协议（例如，蓝牙）的通信能力（例如，RX和TX），并且还包括根据第二通信协议的通信能力（例如，仅限于RX）。，WiFi / WLAN（无线局域网））。基于与无线通信设备进行通信的至少一个无线通信设备的知识，RX功能用于协助无线通信设备的位置确定。

10. 发明申请

US20100303047A1 Hybrid location determination for wireless communication device 有权
公开(公告)号：US20100303047A1
公开(公告)日：2010-12-02
申请号：US12484867
申请日：2009-06-15
申请人： Brima B. Ibrahim , Prasanna Desai , Donald L. Fuchs , Craig Ochikubo
发明人： Brima B. Ibrahim , Prasanna Desai , Donald L. Fuchs , Craig Ochikubo
IPC分类号： H04W88/08 , H04W24/00
CPC分类号： H04W4/023 , H04L67/18 , H04W4/02 , H04W4/50 , H04W8/26 , H04W84/12 , H04W88/06
摘要： Hybrid location determination for wireless communication device. Various services that may be used by a wireless communication device within a particular location may be referred to as location based services (LBS). As such, means by which the location of a wireless communication device that may use such available services, within such a locale, is made by using more than one type of location determination approach. For example, a wireless communication device includes communication capability (e.g., RX and TX) in accordance with a first communication protocol (e.g., Bluetooth) and also includes a communication capability (e.g., RX only) in accordance with a second communication protocol (e.g., WiFi/WLAN (Wireless Local Area Network)). The RX capability is operative to assist in location determination for the wireless communication device based on knowledge of at least one wireless communication device that communicates with the wireless communication device.

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