Back to results
US 8,570,220 B2Granted
Navigation receiver
AssigneeQUALCOMM Incorporated
InventorsLiang Zhao, Michael Kohlmann, Paul A. Conflitti, Roger Brockenbrough, Cormac S. Conroy, Leonid Sheynblat, Douglas Rowitch
Life of this patent
Estimating the term…
Abstract
The subject matter disclosed herein relates to a system and method for processing navigation signals received from multiple global navigation satellite systems (GNSS′). In a particular implementation, signals received from multiple GNSS′ may be processed in a single receiver channel.
Claims41
A method comprising:
- receiving a signal at a single radio frequency (RF) receiver, the signal comprising a plurality of satellite positioning signals;
- processing the received signal to generate a composite signal comprising at least a first satellite signal component having a first carrier frequency and a second satellite signal component having a second carrier frequency that differs from the first carrier frequency;
- processing the composite signal to generate at least a separate first satellite signal portion and a separate second satellite signal portion, wherein processing the composite signal comprises:
- performing analog to digital conversion and complex downconversion of the composite signal.
1 more element
A satellite positioning receiver comprising:
- a single radio frequency (RF) receiver to receive a signal comprising a plurality of satellite positioning signals;
- analog to digital processing circuitry to generate digitally sampled composite satellite positioning signals, the digitally sampled composite satellite positioning signals comprising a plurality of satellite signal components, the plurality of satellite signal components comprising a first satellite signal component having a first carrier frequency and a second satellite signal component having a second carrier frequency that differs from the first carrier frequency;
- and
- complex downconversion circuitry to process the digitally sampled composite satellite positioning signals to generate a plurality of separate satellite signal portions.
1 more element
A satellite positioning receiver comprising:
- means for receiving a signal at a single radio frequency (RF) receiver, the signal comprising a plurality of satellite positioning signals;
- means for processing the received signal to generate a composite signal comprising at least a first satellite signal component having a first carrier frequency and a second satellite signal component having a second carrier frequency that differs from the first carrier frequency;
- means for processing the composite signal to generate at least a separate first satellite signal portion and a separate second satellite signal portion, wherein processing the composite signal comprises:
- means for performing analog to digital conversion and complex downconversion of the composite signal.
1 more element
Dependencies are inferred from the claim text.