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1.发明申请APPARATUS AND METHOD FOR REDUCING PHASE NOISE IN NEAR FIELD COMMUNICATION DEVICE SIGNALING 有权用于减少近场通信设备信号中的相位噪声的装置和方法公开(公告)号：US20140273828A1
公开(公告)日：2014-09-18
申请号：US13841155
申请日：2013-03-15
Applicant: QUALCOMM INCORPORATED
Inventor： Eugene Yang , Eunmo Kang , Faramarz Sabouri
CPC classification number: H04B15/00 , H03D3/009 , H03D7/165 , H04B5/00 , H04L7/033 , H04L25/4902 , H04L27/206 , H04L27/2092 , H04L2027/0018 , H04L2027/0057 , H04L2027/0067
Abstract: A method for communication between near field communication (NFC) devices includes generating a transmission signal, an in-phase local oscillator signal, and a quadrature local oscillator signal from edges of an input clock signal. The method further includes mixing a load modulated signal with the in-phase local oscillator signal to generate an in-phase baseband signal. The method further includes mixing the load modulated signal with the quadrature local oscillator signal to generate a quadrature baseband signal. The method further includes adjusting a phase delay of at least one of the in-phase local oscillator signal or the quadrature local oscillator signal in response to a first signal strength of the in-phase baseband signal and a second signal strength of the quadrature baseband signal.
Abstract translation: 用于近场通信（NFC）设备之间的通信的方法包括从输入时钟信号的边缘产生发送信号，同相本地振荡器信号和正交本地振荡器信号。 该方法还包括将负载调制信号与同相本地振荡器信号混合以产生同相基带信号。 该方法还包括将负载调制信号与正交本地振荡器信号混合以产生正交基带信号。 该方法还包括响应于同相基带信号的第一信号强度和正交基带信号的第二信号强度来调整同相本地振荡器信号或正交本地振荡器信号中的至少一个的相位延迟 。
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2.发明授权Apparatus and method for reducing phase noise in near field communication device signaling 有权用于减少近场通信设备信号中的相位噪声的装置和方法公开(公告)号：US09094113B2
公开(公告)日：2015-07-28
申请号：US13841155
申请日：2013-03-15
Applicant: QUALCOMM Incorporated
Inventor： Eugene Yang , Eunmo Kang , Faramarz Sabouri
CPC classification number: H04B15/00 , H03D3/009 , H03D7/165 , H04B5/00 , H04L7/033 , H04L25/4902 , H04L27/206 , H04L27/2092 , H04L2027/0018 , H04L2027/0057 , H04L2027/0067
Abstract: A method for communication between near field communication (NFC) devices includes generating a transmission signal, an in-phase local oscillator signal, and a quadrature local oscillator signal from edges of an input clock signal. The method further includes mixing a load modulated signal with the in-phase local oscillator signal to generate an in-phase baseband signal. The method further includes mixing the load modulated signal with the quadrature local oscillator signal to generate a quadrature baseband signal. The method further includes adjusting a phase delay of at least one of the in-phase local oscillator signal or the quadrature local oscillator signal in response to a first signal strength of the in-phase baseband signal and a second signal strength of the quadrature baseband signal.
Abstract translation: 用于近场通信（NFC）设备之间的通信的方法包括从输入时钟信号的边缘产生发送信号，同相本地振荡器信号和正交本地振荡器信号。 该方法还包括将负载调制信号与同相本地振荡器信号混合以产生同相基带信号。 该方法还包括将负载调制信号与正交本地振荡器信号混合以产生正交基带信号。 该方法还包括响应于同相基带信号的第一信号强度和正交基带信号的第二信号强度来调整同相本地振荡器信号或正交本地振荡器信号中的至少一个的相位延迟 。
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