Invention Grant
- Patent Title: Apparatus and methods for phase synchronization of local oscillators in a transceiver
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Application No.: US14954857Application Date: 2015-11-30
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Publication No.: US09614557B1Publication Date: 2017-04-04
- Inventor: Christopher Mayer , David J. McLaurin , Chris Angell
- Applicant: Analog Devices, Inc.
- Applicant Address: US MA Norwood
- Assignee: ANALOG DEVICES, INC.
- Current Assignee: ANALOG DEVICES, INC.
- Current Assignee Address: US MA Norwood
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04L5/16 ; H04B1/04 ; H04L1/00 ; H04B17/13
Abstract:
A method and apparatus for phase adjustment of a RF transceiver is disclosed. Based on a first local oscillator signal and a second local oscillator signal, a beat signal that indicates the frequency and phase relationship between the first and second local oscillator signals can be generated. Using the beat signal, changing phase relationship between the first and second local oscillator signals can be cumulatively taken account for using phase averaging to allow quick restoration to observation of a previously observed channel.
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