公开(公告)号：US07394869B2

公开(公告)日：2008-07-01

申请号：US10816731

申请日：2004-04-02

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： H03C3/00

CPC分类号： H04L27/0008 ,  H04L1/0003 ,  H04L1/0025

摘要： The present invention provides a radio transmitter having a digital modulator that further includes logic for continuous amplitude and continuous phase modulation switching in an RF transmitter intended to support both frequency shift keying (FSK) and phase shift keying (PSK) modulation techniques in a smooth and continuous manner that does not violate spectral mask requirements. The invention supports continuous modulation switching both ways, i.e., from FSK to PSK and from PSK to FSK. In operation, the radio transmitter initially operates in a first communication mode, transmitting communication signals to a remote agent according to a first modulation technique at a first data rate and then transitions to the second modulation type at a second data rate without spectral mask violation.

摘要翻译： 本发明提供了一种具有数字调制器的无线电发射机，该数字调制器还包括用于RF发射机中的连续振幅和连续相位调制切换的逻辑，其旨在支持频移键控（FSK）和相移键控（PSK）调制技术， 连续的方式，不违反光谱掩模要求。 本发明支持连续调制方式两种方式，即从FSK到PSK，从PSK到FSK。 在操作中，无线电发射机最初以第一通信模式操作，根据第一数据速率的第一调制技术向远程代理发送通信信号，然后以没有频谱掩模违例的第二数据速率转换到第二调制类型。

公开(公告)号：US07266163B2

公开(公告)日：2007-09-04

申请号：US10397704

申请日：2003-03-26

申请人： Shahla Khorram ,  Brima B. Ibrahim

发明人： Shahla Khorram ,  Brima B. Ibrahim

IPC分类号： H03D3/00

CPC分类号： H04L27/1563 ,  H04L25/062 ,  H04L27/142

摘要： A data slicer for an FSK demodulator employs a peak and valley detector, each of which has a discharge path with selectable decay rates. The faster decay rate for the peak and valley detector outputs is selected when the difference between the current peak and valley voltages exceeds a predetermined percentage of the expected swing of the voltage input and when a packet has not been detected. When a packet is detected, a slower decay rate is selected. In this mode, the faster decay rate permits faster acquisition of packet data in the presence of DC offset, as it permits the data slicer to converge on an appropriate switching point more quickly.

摘要翻译： 用于FSK解调器的数据限幅器采用峰谷检测器，每个检测器具有可选择衰减速率的放电路径。 当电流峰谷电压之间的差超过电压输入的预期摆幅的预定百分比以及未检测到分组时，选择峰谷检测器输出的较快衰减速率。 当检测到数据包时，选择较慢的衰减速率。 在这种模式下，更快的衰减速率允许在存在DC偏移的情况下更快地采集分组数据，因为它允许数据分片器更快地收敛在适当的切换点上。

公开(公告)号：US08644763B2

公开(公告)日：2014-02-04

申请号：US13346573

申请日：2012-01-09

申请人： Edward H. Frank ,  Brima B. Ibrahim

发明人： Edward H. Frank ,  Brima B. Ibrahim

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04W88/02 ,  H04W16/14 ,  H04W28/14 ,  H04W88/04 ,  H04W88/06

摘要： A method and/or apparatus for cooperative transceiving between wireless interface devices of a host device includes processing that begins by providing an indication of receiving an inbound packet from one wireless interface device (e.g., Bluetooth compliant radio transceiver, IEEE 802.11 compliant radio transceiver, etc.) to another. The wireless interlace device receiving the indication processes the indication and, based on the processing, transmits an outbound packet in accordance with the processing of the indication. For example, the wireless interface device receiving the indication may delay transmission until the other wireless interface device has received the packet, or, if transmission of the packet would not interfere with the receiving of the packet by the other wireless interface device, the wireless interface device receiving the indication would transmit its packet.

摘要翻译： 用于主机设备的无线接口设备之间的协作收发的方法和/或设备包括通过提供从一个无线接口设备（例如，蓝牙兼容无线电收发器，符合IEEE 802.11的无线电收发信机等）接收入站分组的指示开始的处理 。）到另一个。 接收到指示的无线交错装置处理该指示，并且根据该处理，根据该指示的处理来发送出站分组。 例如，接收指示的无线接口装置可以延迟发送，直到另一无线接口装置已经接收到分组，或者如果分组的传输不会干扰另一无线接口装置对分组的接收，则无线接口 接收指示的设备将传送其分组。

公开(公告)号：US20120106419A1

公开(公告)日：2012-05-03

申请号：US13305233

申请日：2011-11-28

申请人： Mark Gonikberg ,  Prasanna Desai ,  Brima B. Ibrahim

发明人： Mark Gonikberg ,  Prasanna Desai ,  Brima B. Ibrahim

IPC分类号： H04W72/12 ,  H04W84/12 ,  H04W52/02 ,  H04W4/00

CPC分类号： H04W88/06 ,  H04W8/005 ,  H04W76/20 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/23

摘要： A circuit includes a first wireless interface circuit that transceives packetized data between a host module and a first external device in accordance with a first wireless communication protocol, wherein the first wireless protocol carries wireless telephony data for communication with a wireless telephony network. A second wireless interface circuit transceives packetized data between the host module and a second external device in accordance with a second wireless communication protocol. The second wireless interface circuit includes at least one module that is shared with first wireless interface circuit. The first wireless interface circuit and the second wireless interface circuit operate in accordance with a wireless interface schedule that includes a first time interval where the first wireless interface device and the second wireless interface device contemporaneously use the at least one module.

公开(公告)号：US20120091799A1

公开(公告)日：2012-04-19

申请号：US13336583

申请日：2011-12-23

申请人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

发明人： Ahmadreza (Reza) Rofougaran ,  Maryam Rofougaran ,  Brima B. Ibrahim ,  Hooman Darabi

IPC分类号： H01F38/14 ,  H02J9/00 ,  H02J1/00

CPC分类号： H02J50/80 ,  G06F1/266 ,  H02J1/10 ,  H02J7/04 ,  H02J7/34 ,  H02J17/00 ,  H02J50/12 ,  H02J50/20 ,  H02J50/40 ,  Y10T307/352 ,  Y10T307/391 ,  Y10T307/625

摘要： A core module for a portable computing device includes a wireless power receiver module, a battery power module, a power supply module, a processing module, and an RF link interface. The wireless power receiver module, when operable, receives a wireless power transmit signal and converts it into a supply voltage. The battery power module, when operable, outputs a battery voltage. The power supply module, when operable, converts the supply voltage or the battery voltage into one or more power supply voltages. The processing module is operable to select one of the battery voltage, the supply voltage, and one of the one or more power supply voltages to produce a selected voltage. The RF link interface outputs the selected voltage on to an RF link of the portable computing device for providing power to one or more multi mode RF units within the portable computing device.

摘要翻译： 用于便携式计算设备的核心模块包括无线电力接收器模块，电池电源模块，电源模块，处理模块和RF链路接口。 无线电力接收器模块在可操作时接收无线功率发射信号并将其转换成电源电压。 电池电源模块在可操作时输出电池电压。 电源模块在可操作时将电源电压或电池电压转换成一个或多个电源电压。 处理模块可操作以选择电池电压，电源电压和一个或多个电源电压中的一个以产生选定电压。 RF链路接口将所选择的电压输出到便携式计算设备的RF链路，以向便携式计算设备内的一个或多个多模式RF单元提供电力。

公开(公告)号：US07940142B2

公开(公告)日：2011-05-10

申请号：US12506997

申请日：2009-07-21

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： H03C3/20 ,  H03C3/06

CPC分类号： H03L7/1976 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/093

摘要： A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency modulation signal and a second input for receiving the phase signal and providing the phase signal along a second signal path to produce a second frequency modulation signal. The PLL further includes a voltage controlled oscillator (VCO) having two modulation points, one for receiving the first frequency modulation signal and the other for receiving the second frequency modulation signal. The VCO is controlled by an aggregate of the first frequency modulation signal and the second frequency modulation signal to up-convert the phase signal from an IF to an RF to produce the RF signal with a wide bandwidth.

摘要翻译： 极性发射机包括用于产生宽带宽的RF信号的两点调制锁相环（PLL）。 PLL包括用于接收可变包络调制信号的相位信号并沿着第一信号路径提供相位信号以产生第一频率调制信号的第一输入端和用于接收相位信号并提供相位信号的第二输入端 用于产生第二频率调制信号的第二信号路径。 PLL还包括具有两个调制点的压控振荡器（VCO），一个用于接收第一频率调制信号，另一个用于接收第二频率调制信号。 VCO由第一频率调制信号和第二频率调制信号的集合控制，以将来自IF的相位信号上变频到RF以产生具有宽带宽的RF信号。

公开(公告)号：US20100302102A1

公开(公告)日：2010-12-02

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： G01S5/02

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.

摘要翻译： 无线通信设备内的到达角度和/或范围估计。 执行由无线通信设备接收的通信的适当处理以确定通信的到达角度（例如，关于无线通信设备的某些坐标基础）。 此外，可以根据由无线通信设备执行的范围估计来执行通信的适当处理，以确定发送和接收无线通信设备之间的距离。 可以执行两种分组处理操作的模式：（1）当接收到的分组的内容是已知的，以及（2）当接收的分组的内容是未知的时。 无线通信装置包括多个天线，并且切换机构从各种天线之间切换，利用天线的空间分集来生成多天线信号。

公开(公告)号：US07579922B2

公开(公告)日：2009-08-25

申请号：US11471147

申请日：2006-06-20

申请人： Henrik T. Jensen ,  Brima B. Ibrahim

发明人： Henrik T. Jensen ,  Brima B. Ibrahim

IPC分类号： H03C3/09

CPC分类号： H03L7/1976 ,  H03C3/0925 ,  H03C3/0933 ,  H03C3/0941 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/093

摘要： A polar transmitter includes a two-point modulation phase-locked loop (PLL) for producing an RF signal with a wide bandwidth. The PLL includes a first input for receiving a phase signal of a variable-envelope modulated signal and providing the phase signal along a first signal path to produce a first frequency modulation signal and a second input for receiving the phase signal and providing the phase signal along a second signal path to produce a second frequency modulation signal. The PLL further includes a voltage controlled oscillator (VCO) having two modulation points, one for receiving the first frequency modulation signal and the other for receiving the second frequency modulation signal. The VCO is controlled by an aggregate of the first frequency modulation signal and the second frequency modulation signal to up-convert the phase signal from an IF to an RF to produce the RF signal with a wide bandwidth.

公开(公告)号：US07415253B2

公开(公告)日：2008-08-19

申请号：US10910426

申请日：2004-08-03

申请人： Keith A. Carter ,  Brima B. Ibrahim ,  Siukai Mak ,  Ken Gin

发明人： Keith A. Carter ,  Brima B. Ibrahim ,  Siukai Mak ,  Ken Gin

IPC分类号： H01Q11/12

CPC分类号： H04W52/225 ,  H04B17/102 ,  H04B17/14

摘要： A method for temperature compensation of transmit power of a wireless communication device begins by measuring transmit power of the wireless communication device at a first temperature-based biasing condition to produce a first measured transmit power. The method continues by measuring transmit power of the wireless communication device at a second temperature-based biasing condition to produce a second measured transmit power. The method continues by determining ambient temperature of at least a portion of the wireless communication device based on the first and second measured transmit powers and a relationship between the first and second temperature-based biasing conditions. The method continues by compensating transmit power level of the wireless communication device based on the ambient temperature.

摘要翻译： 一种用于无线通信设备的发射功率的温度补偿的方法是通过在第一基于温度的偏置条件下测量无线通信设备的发射功率而开始的，以产生第一测量的发射功率。 该方法通过在第二基于温度的偏置条件下测量无线通信设备的发射功率来继续，以产生第二测量的发射功率。 该方法通过基于第一和第二测量的发射功率以及第一和第二基于温度的偏置条件之间的关系来确定无线通信设备的至少一部分的环境温度。 该方法通过基于环境温度补偿无线通信设备的发射功率电平来继续。

公开(公告)号：US07295528B2

公开(公告)日：2007-11-13

申请号：US10770185

申请日：2004-02-02

申请人： Brima B. Ibrahim ,  Kenneth Ma

发明人： Brima B. Ibrahim ,  Kenneth Ma

IPC分类号： H04B7/00 ,  H04Q7/00

CPC分类号： H04W72/1215 ,  H04L1/1642 ,  H04W88/06

摘要： A method for use by one peer of peer wireless interfaces devices of a wireless communication device to cooperatively provide wireless communications in a multiple wireless communication environment with other peers of the peer wireless interface devices begins by initiating an atomic sequence of a plurality of atomic sequences. The processing continues by setting a priority level corresponding to the atomic sequence to produce a corresponding priority level. The processing continues by sensing priority level of at least one of the other peers to produce a sensed priority level. The processing continues by comparing the sensed priority level with the corresponding priority level. The processing then continues by performing at least a portion of the atomic sequence when the comparing of the sensed priority level with the corresponding priority level is favorable.

摘要翻译： 通过启动多个原子序列的原子序列，无线通信设备的对等无线接口设备的一个对等体使用的方法可以在多个无线通信环境中与对等无线接口设备的其他对等端协作提供无线通信。 通过设置与原子序列相对应的优先级来继续处理以产生相应的优先级。 通过感测至少一个其他对等体的优先级来产生感测的优先级，继续该处理。 通过将感测到的优先级与相应的优先级进行比较，继续处理。 当感测到的优先级与对应优先级的比较是有利的时候，通过执行原子序列的至少一部分来继续处理。