Invention Grant
- Patent Title: Method and system for repurposing of a global navigation satellite system receiver for receiving low-earth orbit communication satellite signals
-
Application No.: US14739659Application Date: 2015-06-15
-
Publication No.: US09791574B2Publication Date: 2017-10-17
- Inventor: Maxime Leclercq , Ioannis Spyropoulos , Nishant Kumar , Anand Anandakumar
- Applicant: Maxlinear, Inc.
- Applicant Address: US CA Carlsbad
- Assignee: Maxlinear, Inc.
- Current Assignee: Maxlinear, Inc.
- Current Assignee Address: US CA Carlsbad
- Agency: McAndrews, Held & Malloy
- Main IPC: G01S19/00
- IPC: G01S19/00 ; G01S19/38 ; H04B7/185 ; G01S19/46 ; H04W64/00

Abstract:
Methods and systems for repurposing of a global navigation satellite system receiver for receiving low-earth orbit (LEO) communication satellite timing signals may comprise receiving a medium Earth orbit (MEO) satellite signal and/or a LEO signal in a receiver of the communication device. The MEO or LEO signal may be down-converted, and a position of the communication device may be calculated utilizing the down-converted signal. The signal may be down-converted utilizing a local oscillator signal generated by a phase locked loop (PLL), which may be delta-sigma modulated via a fractional-N divider. A clock signal may be communicated to the PLL utilizing a temperature-compensated crystal oscillator. The signal may be down-converted to an intermediate frequency or down-converted directly to baseband frequencies. The signal may be processed utilizing surface acoustic wave (SAW) filters. In-phase and quadrature signals may be processed in the RF path utilizing a two-stage polyphase filter.
Public/Granted literature
Information query