公开(公告)号：US09504056B2

公开(公告)日：2016-11-22

申请号：US11143378

申请日：2005-06-02

申请人： Prasanna Desai ,  Brima Ibrahim

发明人： Prasanna Desai ,  Brima Ibrahim

IPC分类号： H04B7/00 ,  H04W72/12 ,  H04W88/06

CPC分类号： H04W72/1215 ,  H04W72/1242 ,  H04W88/06

摘要： A method and system for sharing a single antenna on platforms with collocated Bluetooth and IEEE 802.11 b/g devices are provided. A single antenna may be utilized for communication of Bluetooth HV3 frame traffic and wireless local area network (WLAN) communication based on a time multiplexing approach. At least one antenna switch may be utilized to configure an antenna system to enable Bluetooth and WLAN coexistence via the single antenna. Configuration signals may be generated by a Bluetooth radio device and/or by a WLAN radio device to configure the antenna system. A default configuration for the antenna system may provide WLAN communication between a station and a WLAN access point until Bluetooth communication becomes a priority.

公开(公告)号：US09026048B2

公开(公告)日：2015-05-05

申请号：US13325675

申请日：2011-12-14

申请人： Philip Stewart Royston ,  Steven Deane Hall ,  Brima Ibrahim

发明人： Philip Stewart Royston ,  Steven Deane Hall ,  Brima Ibrahim

IPC分类号： H04B5/00 ,  H04B1/04 ,  H04B1/00 ,  H01Q11/12 ,  G06K7/10

CPC分类号： H04B5/0075 ,  G06K7/10128 ,  G06K7/10237 ,  H04B5/0043

摘要： A near field communications (NFC) device is disclosed that detects a presence of another NFC capable device within its magnetic field. The NFC device observes signal metrics of an observed detection signal at various intervals. The NFC device determines a statistical relationship based upon at least two first signal metrics from among the signal metrics to determine an estimate of at least one second signal metric from among the signal metrics. The NFC device compares a difference between the estimate of the signal metric of the at least one second signal metric and the at least one second signal metric. The NFC capable device makes a first determination that another NFC device is present within its magnetic field when the difference indicates that the at least one second signal metric is non-linearly related to the at least two first signal metrics.

摘要翻译： 公开了近场通信（NFC）设备，其检测在其磁场内存在另一个NFC能力的设备。 NFC设备以各种间隔观察观察到的检测信号的信号度量。 NFC设备基于来自信号度量的至少两个第一信号度量来确定统计关系，以从信号度量中确定至少一个第二信号度量的估计。 NFC设备将至少一个第二信号度量的信号度量的估计与至少一个第二信号度量之间的差进行比较。 NFC能力设备首先确定当该差异指示至少一个第二信号度量与至少两个第一信号度量非线性相关时，另一个NFC设备存在于其磁场内。

公开(公告)号：US08811468B2

公开(公告)日：2014-08-19

申请号：US11286950

申请日：2005-11-22

申请人： Brima Ibrahim ,  Paul Lettieri

发明人： Brima Ibrahim ,  Paul Lettieri

IPC分类号： H04B1/66

CPC分类号： H04B1/1027 ,  Y02D70/14

摘要： Methods and systems for processing signals are provided and may include removing a DC component from a signal envelope comprising a combined signal within a range of allocated FM channels to generate a modified signal envelope. Fluctuation in power in the signal envelope may be detected based on a ratio of a magnitude of the signal envelope and a magnitude of the modified signal envelope. The removing may further include low-pass filtering the signal envelope to generate a low-pass filtered signal envelope. A square values of the low-pass filtered signal envelope may be determined to generate a squared signal envelope. The squared signal envelope may be high-pass filtered to generate a high-pass filtered signal envelope. The fluctuation in power in the signal envelope may be detected based on a ratio of a magnitude of the high-pass filtered signal envelope and a magnitude of the low-pass filtered signal envelope.

摘要翻译： 提供用于处理信号的方法和系统，并且可以包括从包括分配的FM信道的范围内的组合信号的信号包络去除DC分量以产生修改的信号包络。 可以基于信号包络的大小与修改的信号包络的大小的比率来检测信号包络中的功率波动。 去除可以进一步包括对信号包络进行低通滤波以产生低通滤波信号包络。 可以确定低通滤波信号包络的平方值以产生平方信号包络。 平方信号包络可以被高通滤波以产生高通滤波信号包络。 可以基于高通滤波信号包络的幅度与低通滤波信号包络的幅度的比值来检测信号包络中功率的波动。

公开(公告)号：US08797213B2

公开(公告)日：2014-08-05

申请号：US12895497

申请日：2010-09-30

申请人： Ka Shun Carson Pun ,  Alfred Grau Besoli ,  Jesus Castaneda ,  Brima Ibrahim ,  David Garrett ,  Siukai Mak

发明人： Ka Shun Carson Pun ,  Alfred Grau Besoli ,  Jesus Castaneda ,  Brima Ibrahim ,  David Garrett ,  Siukai Mak

IPC分类号： G01S5/04

CPC分类号： G01S3/043 ,  G01S3/48

摘要： Methods and systems for estimating an angle of arrival are provided. In an embodiment, a system for estimating angle of arrival includes a snapshot determining module configured to receive a signal from each antenna of an antenna array and to generate a snapshot vector including values based on the signals and an angle of arrival processing module configured to estimate an angle of arrival for the electromagnetic signal relative to the antenna array based on the snapshot vector. Each signal is representative of an electromagnetic signal incident on a respective antenna of the antenna array and each value is representative of a phase of a respective signal.

摘要翻译： 提供了用于估计到达角的方法和系统。 在一个实施例中，用于估计到达角的系统包括：快照确定模块，被配置为从天线阵列的每个天线接收信号，并且生成包括基于所述信号的值的快照向量以及被配置为估计 基于快照向量的相对于天线阵列的电磁信号的到达角度。 每个信号表示入射在天线阵列的相应天线上的电磁信号，并且每个值表示相应信号的相位。

公开(公告)号：US08731572B2

公开(公告)日：2014-05-20

申请号：US13287936

申请日：2011-11-02

申请人： Hongyu Xie ,  Srikanth Shubhakoti ,  Matthew James Fischer ,  Shawn Shiliang Ding ,  Gang Lu ,  Yuan Zhuang ,  Brima Ibrahim ,  Payam Torab Jahromi ,  Murat Mese

发明人： Hongyu Xie ,  Srikanth Shubhakoti ,  Matthew James Fischer ,  Shawn Shiliang Ding ,  Gang Lu ,  Yuan Zhuang ,  Brima Ibrahim ,  Payam Torab Jahromi ,  Murat Mese

IPC分类号： H04W72/00

CPC分类号： H04W72/0446 ,  H04L5/0092 ,  H04W72/1268 ,  H04W72/1289

摘要： Techniques for localized dynamic channel allocation help meet the challenges of latency, memory size, and channel time optimization for wireless communication systems. As examples, advanced communication standards, such as the WiGig standard, may support wireless docking station capability and wireless streaming of high definition video content between transmitting and receiving stations, or engage in other very high throughput tasks. The techniques help to deliver the desired user experience in such an environment and address the need to meet latency and throughput requirements while limiting memory footprint.

摘要翻译： 用于本地化动态信道分配的技术有助于应对无线通信系统的延迟，存储器大小和信道时间优化的挑战。 作为示例，诸如WiGig标准的高级通信标准可以支持发射站和接收站之间的高清晰度视频内容的无线对接站能力和无线流，或者参与其它非常高的吞吐量任务。 这些技术有助于在这样的环境中提供所需的用户体验，并解决了在限制内存占用的同时满足延迟和吞吐量要求的需求。

公开(公告)号：US08712330B2

公开(公告)日：2014-04-29

申请号：US12483958

申请日：2009-06-12

申请人： Prasanna Desai ,  Brima Ibrahim

发明人： Prasanna Desai ,  Brima Ibrahim

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B17/00 ,  H04B7/00 ,  H04B7/185

CPC分类号： H04B17/318 ,  H04W24/10 ,  H04W48/08 ,  H04W52/322 ,  H04W76/10 ,  H04W84/18

摘要： A mobile device such as a Bluetooth low energy (BLE) device detects out-of-band blocking signals and manages packet transmission in associated BLE link layer connections based on the detected out-of-band blocking signals. The BLE device is operable to measure out-of-band RSSI to detect out-of-band transmission interferences. The BLE device compares the measured out-of-band RSSI with an out-of-band energy profile such as a LTE energy profile or a WiMAX energy profile to determine the out-of-band blocking signals indicating cadence or periodic out-of-band traffic activities. A remote BLE deice (advertiser) aperiodically or periodically transmits an advertising packet to the BLE device for a specific link layer connection. If not connected within a determined time period, the remote BLE device (advertiser) reduces transmission power for transmitting the advertising packet. The BLE device receives the advertising packet and sends a connection request packet to the remote BLE device (advertiser).

摘要翻译： 诸如蓝牙低能量（BLE）设备的移动设备基于检测到的带外阻断信号来检测带外阻塞信号并管理相关联的BLE链路层连接中的分组传输。 BLE设备可操作以测量带外RSSI以检测带外传输干扰。 BLE设备将所测量的带外RSSI与诸如LTE能量曲线或WiMAX能量曲线之类的带外能量曲线进行比较，以确定指示节奏或周期性的频带外阻塞信号， 乐队交通活动。 远程BLE设备（广告商）不定期地或周期地向BLE设备发送广告分组用于特定的链路层连接。 如果在确定的时间段内没有连接，则远程BLE设备（广告商）降低了用于发送广告分组的传输功率。 BLE设备接收广告分组并向远程BLE设备（广告商）发送连接请求分组。

公开(公告)号：US08682246B2

公开(公告)日：2014-03-25

申请号：US11845481

申请日：2007-08-27

申请人： Prasanna Desai ,  Steven Deane Hall ,  Brima Ibrahim

发明人： Prasanna Desai ,  Steven Deane Hall ,  Brima Ibrahim

IPC分类号： H04B7/00 ,  H04B1/00

CPC分类号： H04W16/14 ,  H04W88/06

摘要： Methods and systems for collaborative coexistence of Bluetooth and WiMax are disclosed. Aspects of one method may include a packet traffic arbiter (PTA) in a mobile terminal that arbitrates among requests to transmit from one or more communication devices collocated in the mobile terminal. The communication devices may comprise, for example, a WLAN communication device, a WiMax communication device, and/or a Bluetooth communication device. The arbitration may be based on, for example, whether a packet will be received by one of the plurality of collocated communication devices at a time of transmission of the present data packet and/or a priority for data to be transmitted. An exemplary scenario may be where a Bluetooth headset may be used for communication over a WiMax voice connection. One arbitration method may comprise allowing the WiMax packet to be transmitted, and replacing the received Bluetooth packet with data indicating silence. Another method may comprise not allowing transmission of the present WiMax packet. Rather, the present WiMax packet and a subsequent WiMax packet may e transmitted at the next transmission period.

摘要翻译： 披露了蓝牙和WiMax协同共存的方法和系统。 一种方法的方面可以包括移动终端中的分组业务仲裁器（PTA），其在从移动终端中并置的一个或多个通信设备发送的请求中进行仲裁。 通信设备可以包括例如WLAN通信设备，WiMax通信设备和/或蓝牙通信设备。 仲裁可以基于例如在传输本数据分组时是否由多个并置通信设备之一接收分组和/或要发送的数据的优先级。 示例性场景可以是其中可以使用蓝牙耳机通过WiMax语音连接进行通信。 一种仲裁方法可以包括允许发送WiMax分组，并且用指示静默的数据替换接收到的蓝牙分组。 另一种方法可以包括不允许传输本WiMax分组。 相反，可以在下一个传输周期发送当前的WiMax分组和随后的WiMax分组。

公开(公告)号：US20140036767A1

公开(公告)日：2014-02-06

申请号：US13648586

申请日：2012-10-10

申请人： Prasanth Perugupalli ,  Brima Ibrahim

发明人： Prasanth Perugupalli ,  Brima Ibrahim

IPC分类号： H04W4/00 ,  H04B7/24

CPC分类号： H04W4/023 ,  H04W4/80

摘要： The present application discloses various implementations of a wireless docking system. In one implementation, such a wireless docking system includes a docking surface and at least one wireless transceiver configured to establish a wireless connection with a portable device. The wireless connection results in interoperability of the portable device and another device connected to the wireless docking system.

摘要翻译： 本申请公开了无线对接系统的各种实施方式。 在一个实施方式中，这样的无线对接系统包括对接面和配置成与便携式设备建立无线连接的至少一个无线收发器。 无线连接导致便携式设备和连接到无线对接系统的另一设备的互操作性。

公开(公告)号：US08615270B2

公开(公告)日：2013-12-24

申请号：US11880257

申请日：2007-07-20

申请人： Brima Ibrahim ,  Prasanna Desai ,  Mark Gonikberg

发明人： Brima Ibrahim ,  Prasanna Desai ,  Mark Gonikberg

IPC分类号： H04M1/00

CPC分类号： H04B1/401 ,  H01Q21/29 ,  H04B1/44 ,  H04B7/04 ,  H04W88/06

摘要： A method includes determining that an antenna shared between a Bluetooth transceiver and a WLAN transceiver is available to the WLAN transceiver based on an activity signal associated with the Bluetooth transceiver. Access to the shared antenna is provided to the WLAN transceiver based on the determination, and the WLAN transceiver is configured to use diversity in transacting WLAN signals via a plurality of antennas, including the shared antenna. Access to the shared antenna is transferred from the WLAN transceiver to the Bluetooth transceiver based on the activity signal.

摘要翻译： 一种方法包括基于与蓝牙收发器相关联的活动信号来确定WLAN收发器和WLAN收发器之间共享的天线可用于WLAN收发器。 基于确定，向WLAN收发器提供对共享天线的访问，并且WLAN收发器被配置为使用经由包括共享天线的多个天线来处理WLAN信号的分集。 根据活动信号，从WLAN收发器到蓝牙收发器的访问共享天线。

公开(公告)号：US08600427B2

公开(公告)日：2013-12-03

申请号：US13525913

申请日：2012-06-18

申请人： Brima Ibrahim ,  Prasanna Desai

发明人： Brima Ibrahim ,  Prasanna Desai

IPC分类号： H04B7/00

CPC分类号： H04B7/26 ,  G06F3/02 ,  G06F3/03541 ,  G06F3/0412 ,  G06F3/167 ,  H04W24/00 ,  H04W28/06 ,  H04W28/18 ,  H04W84/18

摘要： A host device may be enabled to support a plurality of wireless interfaces, wherein some of these interfaces may be utilized to support human interface device (HID) based communication. The host device may be enabled to monitor activity of HID devices based on communications via HID capable wireless interfaces, may predict future use of the HID devices based on the monitoring, and may manage sniff communication that is utilized to track and/or detect activities in the HID devices. The management of the sniff communication may comprise adjusting characteristics of the sniff communication to enable improving throughput of other wireless interfaces available via the host device that may be affected by the sniff communication. The adjustment of the characteristics of sniff communication may comprise adjusting, statically and/or dynamically, length of sniff intervals and/or designating of sniff packets as high priority requests.

摘要翻译： 可以使主机设备支持多个无线接口，其中这些接口中的一些可以用于支持基于人机接口设备（HID）的通信。 可以使主机设备能够基于通过具有HID能力的无线接口的通信来监视HID设备的活动，可以基于监视来预测HID设备的未来使用，并且可以管理用于跟踪和/或检测活动的嗅探通信 HID设备。 嗅探通信的管理可以包括调整嗅探通信的特性，以便能够改善可能受嗅探通信影响的主机设备可用的其他无线接口的吞吐量。 嗅探通信的特征的调整可以包括调整，静态和/或动态的嗅探间隔的长度和/或将嗅探包指定为高优先级请求。