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公开(公告)号：US20150084688A1
公开(公告)日：2015-03-26
申请号：US14037116
申请日：2013-09-25
Applicant: QUALCOMM Incorporated
Inventor： Li-Chung Chang , Bindu Gupta , Timothy Donald Gathman , Ibrahim Ramez Chamas
IPC: H03H11/04
CPC classification number: H03H11/0466 , H03F1/0277 , H03F1/08 , H03F1/223 , H03F3/193 , H03F3/45183 , H03F3/45475 , H03F3/45932 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/534 , H03F2200/541 , H03F2200/543 , H03F2203/45352 , H03F2203/45396 , H03F2203/45506 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45618 , H03F2203/45702 , H03F2203/45728 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03H2210/021 , H03H2250/00
Abstract: Techniques for designing baseband processing circuitry for radio IC's. In an aspect, techniques for differential-to-single-ended conversion in a baseband portion of the IC are disclosed to reduce the pin count and package size for RF IC's. In another aspect, the converter includes selectable narrowband and wideband amplifiers, wherein the wideband amplifiers may be implemented using transistor devices having smaller area than corresponding transistor devices of narrowband amplifiers. Further techniques for bypassing one or more elements, and for implementing a low-pass filter of the converter using an R-C filter network, are described.
Abstract translation: 无线电IC基带处理电路设计技术。 在一方面，公开了用于IC的基带部分中的差分到单端转换的技术，以减少RF IC的引脚数和封装尺寸。 在另一方面，转换器包括可选择的窄带和宽带放大器，其中宽带放大器可以使用具有比窄带放大器的相应晶体管器件小的面积的晶体管器件来实现。 描述了用于绕过一个或多个元件以及用于使用R-C滤波器网络来实现转换器的低通滤波器的进一步的技术。
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公开(公告)号：US09124246B2
公开(公告)日：2015-09-01
申请号：US14037116
申请日：2013-09-25
Applicant: QUALCOMM Incorporated
Inventor： Li-Chung Chang , Bindu Gupta , Timothy Donald Gathman , Ibrahim Ramez Chamas
CPC classification number: H03H11/0466 , H03F1/0277 , H03F1/08 , H03F1/223 , H03F3/193 , H03F3/45183 , H03F3/45475 , H03F3/45932 , H03F3/72 , H03F2200/06 , H03F2200/09 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/294 , H03F2200/336 , H03F2200/411 , H03F2200/429 , H03F2200/432 , H03F2200/534 , H03F2200/541 , H03F2200/543 , H03F2203/45352 , H03F2203/45396 , H03F2203/45506 , H03F2203/45511 , H03F2203/45512 , H03F2203/45516 , H03F2203/45521 , H03F2203/45522 , H03F2203/45526 , H03F2203/45528 , H03F2203/45594 , H03F2203/45618 , H03F2203/45702 , H03F2203/45728 , H03F2203/7215 , H03F2203/7221 , H03F2203/7236 , H03H2210/021 , H03H2250/00
Abstract: Techniques for designing baseband processing circuitry for radio IC's. In an aspect, techniques for differential-to-single-ended conversion in a baseband portion of the IC are disclosed to reduce the pin count and package size for RF IC's. In another aspect, the converter includes selectable narrowband and wideband amplifiers, wherein the wideband amplifiers may be implemented using transistor devices having smaller area than corresponding transistor devices of narrowband amplifiers. Further techniques for bypassing one or more elements, and for implementing a low-pass filter of the converter using an R-C filter network, are described.
Abstract translation: 无线电IC基带处理电路设计技术。 在一方面，公开了用于IC的基带部分中的差分到单端转换的技术，以减少RF IC的引脚数和封装尺寸。 在另一方面，转换器包括可选择的窄带和宽带放大器，其中宽带放大器可以使用具有比窄带放大器的相应晶体管器件小的面积的晶体管器件来实现。 描述了用于绕过一个或多个元件以及用于使用R-C滤波器网络来实现转换器的低通滤波器的进一步的技术。
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公开(公告)号：US20240430071A1
公开(公告)日：2024-12-26
申请号：US18340787
申请日：2023-06-23
Applicant: QUALCOMM Incorporated
Inventor： Faramarz Sabouri , Ahmed Abbas Mohamed Helmy , Mehran Bakhshiani , Bindu Gupta
Abstract: This disclosure provides systems, methods, and devices for wireless communications that support enhanced phase calibration operations. In a first aspect, an apparatus for wireless communications includes a processing system. The processing system is configured to cause the wireless communication device to: receive a reference signal at a respective input of a plurality of receive chains; process, by each receive chain, the reference signal to generate a respective output signal; determine, for each receive chain, a phase alignment difference between the respective output signal of the receive chain and a reference output signal of a reference receive chain of the plurality of receive chains; and adjust a phase alignment of a divider of at least one receive chain of the plurality of receive chains based on the determined phase alignment difference for the at least one receive chain. Other aspects and features are also claimed and described.
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