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81. 发明申请

US20080279264A1 High speed data bus for communicating between wireless interface devices of a host device 有权
标题翻译：用于在主机设备的无线接口设备之间通信的高速数据总线
公开(公告)号：US20080279264A1
公开(公告)日：2008-11-13
申请号：US11801638
申请日：2007-05-10
申请人： Prasanna Desai , Mark Gonikberg , Brima B. Ibrahim , Edward H. Frank
发明人： Prasanna Desai , Mark Gonikberg , Brima B. Ibrahim , Edward H. Frank
IPC分类号： H04L5/16 , H04B1/38
CPC分类号： H04W16/14 , H04W88/06
摘要： A circuit includes a first wireless interface circuit that communicates packetized data to a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit communicates packetized data to a second external device in accordance with a second wireless communication protocol. A plurality of signal lines communicate at least four lines of cooperation data between the first wireless interface circuit and the second wireless interface circuit, wherein the cooperation data relates to cooperate transceiving in a common frequency spectrum.
摘要翻译：电路包括根据第一无线通信协议将打包数据传送到第一外部设备的第一无线接口电路。第二无线接口电路根据第二无线通信协议将分组数据传送到第二外部设备。多个信号线在第一无线接口电路和第二无线接口电路之间传送至少四行协作数据，其中协作数据涉及在公共频谱中配合收发。

82. 发明授权

US07345490B2 Filter calibration 有权
标题翻译：过滤器校准
公开(公告)号：US07345490B2
公开(公告)日：2008-03-18
申请号：US11120608
申请日：2005-05-03
申请人： Brima B. Ibrahim , Hea Joung Kim
发明人： Brima B. Ibrahim , Hea Joung Kim
IPC分类号： G01R27/28 , H04B15/00
CPC分类号： H03H7/0153 , H03H11/1291
摘要： A method for calibrating a filter begins with the filter filtering a first signal having a first frequency to produce a first filtered signal, wherein the first frequency is in a known pass region of the filter. The processing continues by measuring signal strength of the first filtered signal to produce a first measured signal strength. The processing continues with the filter filtering a second signal having a second frequency to produce a second filtered signal, wherein the second frequency is at a desired corner frequency of the filter. The processing continues by measuring signal strength of the second filtered signal to produce a second measured signal strength. The processing continues by comparing the first measured signal strength with the second measured signal strength to determine whether the filter has attenuated the second signal by a desired attenuation value with respect to the first signal. The processing continues by adjusting filter response of the filter to produce an adjusted filter response when the filter has not attenuated the second signal by the desired attenuation value with respect to the first signal.
摘要翻译：用于校准滤波器的方法开始于对具有第一频率的第一信号进行滤波，以产生第一滤波信号，其中第一频率在滤波器的已知通过区域中。通过测量第一滤波信号的信号强度以产生第一测量信号强度，继续处理。处理继续，滤波器对具有第二频率的第二信号进行滤波以产生第二滤波信号，其中第二频率处于滤波器的期望转角频率。该处理通过测量第二滤波信号的信号强度继续，以产生第二测量信号强度。该处理通过将第一测量信号强度与第二测量信号强度进行比较来确定滤波器是否已经相对于第一信号衰减了所需的衰减值来衰减第二信号。当滤波器没有相对于第一信号衰减所需的衰减值时，滤波器的滤波器响应通过调节滤波器的滤波器响应来产生经调整的滤波器响应，从而继续该处理。

83. 发明授权

US07127222B2 Automatic gain control adjustment of a radio receiver 失效
标题翻译：无线电接收机的自动增益控制调整
公开(公告)号：US07127222B2
公开(公告)日：2006-10-24
申请号：US10879244
申请日：2004-06-28
申请人： Hea Joung Kim , Paul Anthony Lettieri , Brima B. Ibrahim
发明人： Hea Joung Kim , Paul Anthony Lettieri , Brima B. Ibrahim
IPC分类号： H04B1/16
CPC分类号： H03G3/3052 , H04B1/1027 , H04B1/109 , H04B7/0814 , H04B17/318 , H04W52/226 , H04W52/245 , H04W52/246 , H04W52/52
摘要： A method for adjusting automatic gain control of a radio receiver begins by determining power level of a radio frequency (RF) signal received by the radio receiver to produce a determined power level. The method then continues by comparing the determined power level with a plurality of power thresholds to determine whether an automatic gain adjustment is needed. The method then continues, when the automatic gain adjustment is needed, by determining, from the comparing the determined power level with the plurality of power thresholds, a sign of the automatic gain adjustment. The method continues by determining, from the comparing the determined power level with the plurality of power thresholds, a magnitude of the automatic gain adjustment. The method continues by addressing a gain adjustment look up table for at least a portion of the radio receiver based on the magnitude to produce a gain setting. The method then continues by adjusting the automatic gain of the radio receiver based on the sign of the automatic gain adjustment and the gain setting.
摘要翻译：一种用于调整无线电接收机的自动增益控制的方法，是通过确定无线电接收机接收的射频（RF）信号的功率电平来产生确定的功率电平。该方法然后通过将确定的功率电平与多个功率阈值进行比较来继续，以确定是否需要自动增益调整。然后，当需要自动增益调整时，通过从确定的功率电平与多个功率阈值的比较来确定自动增益调整的符号，继续该方法。该方法通过从所确定的功率电平与多个功率阈值的比较来确定自动增益调整的幅度来继续。该方法通过基于幅度寻址无线电接收机的至少一部分的增益调整查找表来继续以产生增益设置。该方法然后通过基于自动增益调整和增益设置的符号来调整无线电接收机的自动增益来继续。

84. 发明授权

US07079816B2 On chip diversity antenna switch 失效
标题翻译：片上分集天线开关
公开(公告)号：US07079816B2
公开(公告)日：2006-07-18
申请号：US10460607
申请日：2003-06-12
申请人： Shahla Khorram , Brima B. Ibrahim , Bojko F. Marholev
发明人： Shahla Khorram , Brima B. Ibrahim , Bojko F. Marholev
IPC分类号： H04B1/44
CPC分类号： H04B1/44
摘要： An on chip diversity antenna switch includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is operably coupled to a pin associated with a first antenna, to a transmit path and to receive a transmit receive (T/R) control signal. The second switch is operably coupled to the pin associated with the first antenna, to a receive path, and to receive the T/R control signal. The third switch is operably coupled to a pin associated with a second antenna, the transmit path, and to receive the T/R control signal. The fourth switch is operably coupled to the pin associated with the second antenna, to the receive path, and to receive the T/R control signal. Based on the T/R control signal, the first or second antenna is coupled to the transmit or receive path via a single switch.
摘要翻译：片上分集式天线开关包括第一开关，第二开关，第三开关和第四开关。第一开关可操作地耦合到与第一天线相关联的引脚到发射路径并且接收发射接收（T / R）控制信号。第二开关可操作地耦合到与第一天线相关联的引脚到接收路径，并且接收T / R控制信号。第三开关可操作地耦合到与第二天线相关联的引脚，发射路径，并且接收T / R控制信号。第四开关可操作地耦合到与第二天线相关联的引脚到接收路径，并且接收T / R控制信号。基于T / R控制信号，第一或第二天线通过单个开关耦合到发射或接收路径。

85. 发明授权

US06993306B2 Determination and processing for fractional-N programming values 有权
$Determination and processing for fractional-N programming values$
公开(公告)号：US06993306B2
公开(公告)日：2006-01-31
申请号：US10054247
申请日：2002-01-22
申请人： Mitchell A. Buznitsky , Yuqian Cedric Wong , Daniel C. Bozich , Brima B. Ibrahim
发明人： Mitchell A. Buznitsky , Yuqian Cedric Wong , Daniel C. Bozich , Brima B. Ibrahim
IPC分类号： H04B1/06 , H03D3/18
CPC分类号： H03L7/18 , G06F1/06 , G06F1/12 , H03L7/1974
摘要： Determination and processing for fractional-N programming values. The present invention is operable to receive a clock signal (CLK) and to transform that CLK into a new CLK, when necessary, for use by various circuitries within a system. The present invention is operable to generate two different CLKs for use by a radio frequency (RF) circuitry and a baseband processing circuitry in certain embodiments. The present invention employs a measurement circuitry and to characterize a first CLK and uses a fractional-N synthesizer to perform any necessary processing to generate the one or more CLKs to the other CLKs within the system. The first CLK may be received from an external source or it may be generated internally; in either case, the present invention is able to modify the CLK into another CLK for use by other circuitries within the system or for use by another external device.

86. 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.

87. 发明授权

US08296346B2 Channel-select decimation filter with programmable bandwidth 有权
标题翻译：具有可编程带宽的通道选择抽取滤波器
公开(公告)号：US08296346B2
公开(公告)日：2012-10-23
申请号：US12690532
申请日：2010-01-20
申请人： Henrik T. Jensen , Brima B. Ibrahim
发明人： Henrik T. Jensen , Brima B. Ibrahim
IPC分类号： G06F17/17 , G06F17/10
CPC分类号： H04L27/38 , H03H17/0664 , H03H17/0671
摘要： A channel-select decimation filter capable of operating in multiple bandwidth modes includes a first low pass filter stage, a variable gain stage, a subtraction module a second low pass filter stage and a down-sampling module. The first low pass filter stage includes a first programmable delay module for filtering input signals to produce first low pass filtered signals. The variable gain stage applies a programmable gain to the input signals to produce gained input signals. The subtraction module subtracts the first low pass filtered signals from the gain input signals to produce first stage signals. The second low pass filter stage includes a second programmable delay module for filtering the first stage signals to produce channel-selected signals. The first programmable delay module, second programmable delay module and programmable gain are programmed to implement one of the multiple bandwidth modes.
摘要翻译：能够在多个带宽模式下工作的频道选择抽取滤波器包括第一低通滤波器级，可变增益级，减法模块，第二低通滤波级和下采样模块。第一低通滤波器级包括用于滤波输入信号以产生第一低通滤波信号的第一可编程延迟模块。可变增益级将可编程增益应用于输入信号以产生增益的输入信号。减法模块从增益输入信号中减去第一低通滤波信号，以产生第一级信号。第二低通滤波器级包括用于对第一级信号进行滤波以产生通道选择信号的第二可编程延迟模块。第一可编程延迟模块，第二可编程延迟模块和可编程增益被编程以实现多种带宽模式之一。

88. 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。

89. 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.

90. 发明授权

US07826411B2 Cooperative transceiving between wireless interface devices of a host device with shared modules 有权
标题翻译：在具有共享模块的主机设备的无线接口设备之间进行协作收发
公开(公告)号：US07826411B2
公开(公告)日：2010-11-02
申请号：US11801534
申请日：2007-05-10
申请人： Mark Gonikberg , Prasanna Desai , Brima B. Ibrahim
发明人： Mark Gonikberg , Prasanna Desai , Brima B. Ibrahim
IPC分类号： G06F15/16
CPC分类号： H04W88/06 , H04W8/005 , H04W76/20 , Y02D70/1224 , Y02D70/1242 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/23
摘要： An 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. 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 module having a first state where the module is operational and a second state corresponding to a low-power state. 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 in the first state and a second time interval where the at least one module is in the second state.
摘要翻译：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分组数据。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分组数据。第二无线接口电路包括与第一无线接口电路共享的至少一个模块，该模块具有模块运行的第一状态和对应于低功率状态的第二状态。第一无线接口电路和第二无线接口电路根据包括第一时间间隔的无线接口调度进行操作，其中第一无线接口设备和第二无线接口设备同时使用处于第一状态的至少一个模块，以及所述至少一个模块处于所述第二状态的第二时间间隔。

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