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1.发明申请公开(公告)号：US20130157603A1
公开(公告)日：2013-06-20
申请号：US13764544
申请日：2013-02-11
Applicant: BROADCOM CORPORATION
Inventor： Arya Behzad , Adedayo Ojo , Yuyu Chang , Hung-Ming Chien , Kishore Rama Rao , Guruprasad Seetharam
IPC: H04B1/06
CPC classification number: H04B1/06 , H04B1/0057 , H04B1/0082 , H04B7/084
Abstract: Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.
Abstract translation: 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。
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2.发明授权公开(公告)号：US08854145B2
公开(公告)日：2014-10-07
申请号：US13740939
申请日：2013-01-14
Applicant: Broadcom Corporation
Inventor： Yuyu Chang , John Leete , Walid Ahmed , Wei Luo
Abstract: Methods and systems are provided to calibrate an oscillator circuit to reduce frequency pulling as a result of a change in power to a portion of the oscillator circuit. In an embodiment, an oscillator is coupled to a clock buffer circuit and a tuning capacitor configured to tune a frequency of the oscillator to a baseline frequency required for cellular communications. A change in power to the clock buffer circuit initiates a change in an amount of capacitance seen by the oscillator, which negatively impacts the tuning of the oscillator. A register stores a frequency offset caused by the change in power, and the tuning capacitor is adjusted, using the frequency offset, in response to the change in power, such that the total amount of capacitance seen by the oscillator is not changed when the change in power occurs.
Abstract translation: 提供了方法和系统来校准振荡器电路，以减少振荡器电路的一部分功率变化导致的频率拉动。 在一个实施例中，振荡器耦合到时钟缓冲器电路和调谐电容器，其被配置为将振荡器的频率调谐到蜂窝通信所需的基准频率。 时钟缓冲电路的功率变化启动振荡器看到的电容量的变化，这对振荡器的调谐产生负面影响。 寄存器存储由功率变化引起的频率偏移，并且使用频率偏移来调整调谐电容器以响应功率的变化，使得当变化时振荡器所看到的电容量总和没有改变 发生电力。
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3.发明授权公开(公告)号：US08838166B2
公开(公告)日：2014-09-16
申请号：US13764544
申请日：2013-02-11
Applicant: Broadcom Corporation
Inventor： Arya Behzad , Adedayo Ojo , Yuyu Chang , Hung-Ming Chien , Kishore Rama Rao , Guruprasad Seetharam
CPC classification number: H04B1/06 , H04B1/0057 , H04B1/0082 , H04B7/084
Abstract: Aspects of a method and system for processing signals in a high performance receive chain may include amplifying a plurality of radio frequency signals in one or more respective one or ones of a plurality of amplifier chains in a multistandard radio frequency front-end, which may comprise one or more shared processing stages. The plurality of radio frequency signals may be compliant with a plurality of radio frequency communication standards and may be received concurrently. The one or more shared processing stages may be shared between two or more of the plurality of amplifier chains. Each of the two or more of the plurality of amplifier chains may be operable to amplify signals compliant with different radio frequency communication standards.
Abstract translation: 用于处理高性能接收链中的信号的方法和系统的方面可以包括在多标准射频前端中的多个放大器链中的一个或多个相应的一个或多个放大器链中放大多个射频信号，其可以包括 一个或多个共享处理阶段。 多个射频信号可以符合多个射频通信标准，并且可以同时接收。 一个或多个共享处理级可以在多个放大器链中的两个或更多个之间共享。 多个放大器链中的两个或更多个放大器链中的每一个可以可操作以放大符合不同射频通信标准的信号。
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