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91. 发明申请

US20080123610A1 METHOD AND SYSTEM FOR A SHARED ANTENNA CONTROL USING THE OUTPUT OF A VOICE ACTIVITY DETECTOR 审中-公开
标题翻译：使用语音活动检测器的输出的共享天线控制的方法和系统
公开(公告)号：US20080123610A1
公开(公告)日：2008-05-29
申请号：US11760865
申请日：2007-06-11
申请人： Prasanna Desai , Wilfrid LeBlanc
发明人： Prasanna Desai , Wilfrid LeBlanc
IPC分类号： H04H1/00
CPC分类号： H04W72/1215 , H04L1/1854 , H04L47/14 , H04L47/2416 , H04L47/25 , H04W28/14 , H04W72/1242 , H04W88/06
摘要： Aspects of a method and system for a shared antenna control using the output of a voice activity detector are provided. A single radio chip for use within a wireless device may handle communication of a Bluetooth (BT) and a Wireless Local Area Network (WLAN) protocol via a single antenna. Simultaneous reception via BT and WLAN channels may be enabled. The single radio chip may enable detection of voice activity in the BT channel and may reduce the BT transmission priority level some time after the voice activity indicates that the BT channel is not transmitting voice information to enable error concealment. Voice activity detection may be based on PCM samples in the BT channel. The single radio chip may transmit an ACK signal to an access point after the BT transmission priority level is reduced.
摘要翻译：提供了使用语音活动检测器的输出的用于共享天线控制的方法和系统的方面。在无线设备中使用的单个无线电芯片可以经由单个天线来处理蓝牙（BT）和无线局域网（WLAN）协议的通信。可以通过BT和WLAN通道同时接收。单个无线电芯片可以使得能够检测BT信道中的语音活动，并且可以在语音活动指示BT信道不发送语音信息以使得能够进行错误隐藏之后的某个时间内减少BT传输优先级。语音活动检测可以基于BT频道中的PCM样本。在BT传输优先级降低之后，单个无线电芯片可以向接入点发送ACK信号。

92. 发明申请

US20080043705A1 Systems and Methods for Enabling Coexistence of Multiple Wireless Components Operating in the Same Frequency Band 有权
标题翻译：使相同频带工作的多个无线组件共存的系统和方法
公开(公告)号：US20080043705A1
公开(公告)日：2008-02-21
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： H04J3/16
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。

93. 发明申请

US20070296684A1 Power efficient screens through display size reduction 有权
标题翻译：通过显示尺寸缩小功能高效的屏幕
公开(公告)号：US20070296684A1
公开(公告)日：2007-12-27
申请号：US11471794
申请日：2006-06-21
申请人： Vishal Thomas , Prasanna Desai
发明人： Vishal Thomas , Prasanna Desai
IPC分类号： G09G3/36
CPC分类号： G09G3/3426 , G09G2330/021 , G09G2340/0407 , G09G2340/0464
摘要： According to some embodiments, an apparatus, a system and a method are provided to reduce a backlit area of a display screen and resize an image to fit in the backlit area.
摘要翻译：根据一些实施例，提供了一种装置，系统和方法，以减少显示屏幕的背光区域并且调整图像大小以适合背光区域。

94. 发明申请

US20070207751A1 Radio receiver with shared low noise amplifier for multi-standard operation in a single antenna system 审中-公开
标题翻译：具有共享低噪声放大器的无线电接收器，用于单个天线系统中的多标准操作
公开(公告)号：US20070207751A1
公开(公告)日：2007-09-06
申请号：US11711719
申请日：2007-02-28
申请人： Arya Behzad , Prasanna Desai , Brima Ibrahim , Mark Gonikberg , Thomas Varghese
发明人： Arya Behzad , Prasanna Desai , Brima Ibrahim , Mark Gonikberg , Thomas Varghese
IPC分类号： H04B7/08
CPC分类号： H04B1/406 , H04B1/18
摘要： A radio receiver is described that processes multiple wireless standards using a single antenna according to embodiments of the invention. The radio receiver includes a single antenna, and a low noise amplifier that is connected to the antenna, without an intervening power divider or power splitter. The output of the low noise amplifier feeds multiple wireless receivers in a parallel arrangement that are operating according to different communications standards, including for example a Bluetooth receiver, and a WLAN 802.11 receiver. Additional wireless standards and their corresponding receivers could be added as well. The input impedance of the low noise amplifier defines the impedance seen by the antenna, regardless of which operational standard is actually in use. Since the input impedance of the low noise amplifier is substantially independent of whether the Bluetooth or WLAN paths are ON or OFF, simultaneous operation can be accomplished.
摘要翻译：描述了根据本发明的实施例的使用单个天线处理多个无线标准的无线电接收机。无线电接收机包括单个天线和连接到天线的低噪声放大器，而没有中间的功率分配器或功率分配器。低噪声放大器的输出以并行布置馈送多个无线接收器，该并行装置根据不同的通信标准（例如蓝芽接收机）和WLAN 802.11接收机进行操作。还可以添加附加的无线标准及其对应的接收器。低噪声放大器的输入阻抗定义天线所看到的阻抗，无论实际使用哪个操作标准。由于低噪声放大器的输入阻抗基本上与蓝牙或WLAN路径是ON还是OFF无关，所以可以实现同时的操作。

95. 发明申请

US20060274704A1 Method and apparatus for collaborative coexistence between Bluetooth and IEEE 802.11 G with both technologies integrated onto a system-on-a-chip (SOC) device 审中-公开
标题翻译：蓝牙和IEEE 802.11 G之间协同共存的方法和装置，将两种技术集成到片上系统（SOC）设备上
公开(公告)号：US20060274704A1
公开(公告)日：2006-12-07
申请号：US11387309
申请日：2006-03-23
申请人： Prasanna Desai , Brima Ibrahim
发明人： Prasanna Desai , Brima Ibrahim
IPC分类号： H04Q7/24
CPC分类号： H04W72/1215 , H04W72/1242 , H04W84/12 , H04W84/18 , H04W88/06
摘要： Certain embodiments of the invention may be found in a method and system for collaborative coexistence between Bluetooth and IEEE 802.11 g with both technologies integrated onto an SOC device. In a single integrated circuit (IC) that handles Bluetooth and WLAN technologies, a WLAN priority level may be selected for WLAN transmissions and a Bluetooth priority level may be selected for Bluetooth transmissions. The WLAN and Bluetooth priority levels may be selected from a plurality of priority levels. A packet transfer scheduler (PTS) may schedule the transmission of WLAN and Bluetooth signals in accordance with the selected priority levels. In some instances, the PTS may promote or demote the priority levels for WLAN and/or Bluetooth transmissions based on traffic needs.
摘要翻译：本发明的某些实施例可以在用于协同共存的方法和系统中找到，所述方法和系统具有集成到SOC设备上的两种技术的蓝牙和IEEE 802.11g之间的协同共存。在处理蓝牙和WLAN技术的单个集成电路（IC）中，可以为WLAN传输选择WLAN优先级，并且可以为蓝牙传输选择蓝牙优先级。可以从多个优先级中选择WLAN和蓝牙优先级。分组传送调度器（PTS）可以根据所选择的优先级来调度WLAN和蓝牙信号的传输。在某些情况下，PTS可以基于业务需求来提升或降低WLAN和/或蓝牙传输的优先级。

96. 发明授权

US06693882B1 Frequency correction burst detection 失效
标题翻译：频率校正突发检测
公开(公告)号：US06693882B1
公开(公告)日：2004-02-17
申请号：US09238672
申请日：1999-01-26
申请人： Jian Gu , Prasanna Desai
发明人： Jian Gu , Prasanna Desai
IPC分类号： H04J314
CPC分类号： H04L27/22 , H04L2027/0032 , H04L2027/0053 , H04L2027/0067 , H04L2027/0093
摘要： A method and an apparatus for detecting a frequency correction burst embedded in a signal which includes ordered samples. The method comprises the following: (a) correlating K sequences of the ordered samples with a predetermined waveform to produce K correlation outputs, each of the K correlation outputs corresponding to one of the K sequences, having a magnitude and being associated with an order index, K being an integer, the predetermined waveform corresponding to the frequency correction burst; (b) storing the K correlation outputs in a buffer according to the order indices; and (c) estimating a parameter based on the K correlation outputs, the parameter indicating detection of the frequency correction burst. The estimated parameter includes a frequency error and an ending time of a frequency correction burst. A quality metric associated with each frequency error is also computed.
摘要翻译：一种用于检测嵌入在包括有序样本的信号中的频率校正突发的方法和装置。该方法包括以下步骤：（a）将有序样本的K个序列与预定波形相关以产生K个相关输出，K个相关输出中的每一个对应于K个序列之一，具有幅度并与订单索引相关联 K为整数，对应于频率校正脉冲串的预定波形; （b）根据订单索引将K个相关输出存储在缓冲器中; 以及（c）基于所述K个相关输出来估计参数，所述参数指示所述频率校正突发的检测。估计参数包括频率误差和频率校正突发的结束时间。还计算与每个频率误差相关联的质量度量。

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