Invention Application
WO2014150035A2 APPARATUS AND METHOD FOR REDUCING PHASE NOISE IN NEAR FIELD COMMUNICATION DEVICE SIGNALING
审中-公开
减少近场通信设备信号中的相位噪声的装置和方法
- Patent Title: APPARATUS AND METHOD FOR REDUCING PHASE NOISE IN NEAR FIELD COMMUNICATION DEVICE SIGNALING
- Patent Title (中): 减少近场通信设备信号中的相位噪声的装置和方法
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Application No.: PCT/US2014/021939Application Date: 2014-03-07
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Publication No.: WO2014150035A2Publication Date: 2014-09-25
- Inventor: YANG, Eugene , KANG, Eunmo , SABOURI, Faramarz
- Applicant: QUALCOMM INCORPORATED
- Applicant Address: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Assignee: QUALCOMM INCORPORATED
- Current Assignee: QUALCOMM INCORPORATED
- Current Assignee Address: Attn: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714 US
- Agency: BINDSELL, James J. et al.
- Priority: US13/841,155 20130315
- Main IPC: H03D3/00
- IPC: H03D3/00
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.
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