Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of mixed data assisted and non data assisted navigation signal acquisition, tracking and reacquisition










Image Number 2 for United States Patent #7859456.

The present invention provides systems and methods for enabling a navigation signal receiver to perform both data assisted and non-data assisted integration to provide better integration during signal acquisition, reacquisition and tracking. In data assisted integration mode, a receiver uses known or predicted data bits to remove the modulated data bits of a received signal prior to integration. In non data assisted integration mode, when the data bits are not known or predictable, the receiver uses an optimal estimation or maximum likelihood algorithm to determine the polarities of the modulated data bits of the received signal. This may be done by determining which of various possible bit pattern yields the maximum integrated power. When the modulated data bits are not known or predictable over a limited range, the receiver carries out data assisted integration over the known or predictable data bits and additional non data assisted integration.








 
 
  Recently Added Patents
Image forming apparatus and image forming method
Serial transmission system including transmitter apparatus and receiver apparatus, for use in transmission of AV data
Dual-box location aware and dual-bitmap voltage domain aware on-chip variation techniques
Linked area parameter adjustment for spinal cord stimulation and associated systems and methods
Efficient paging in a wireless communication system
Interest point detection
Method of enhancing corrosion resistance of hollow vessels
  Randomly Featured Patents
Amplifier topology and method for connecting to printed circuit board traces used as shunt resistors
Presensitized printing plate with in-situ, laser imageable mask
Retractable screen duster
Pharmaceutical formulations comprising paclitaxel, derivatives, and pharmaceutically acceptable salts thereof
Apparatus for repairing breaks in glass
Systems and methods of operating an incoherently beam combined laser
Process for producing microencapsulated electroconductive filler
Handset
Antistatic acrylic polymer compositions
Device for displaying data in camera viewfinder