Resources Contact Us Home
Integrated circuit for code acquisition

Image Number 3 for United States Patent #7403558.

A semiconductor integrated circuit for processing a plurality of received broadcast signals, such as GPS signals, is operable in two modes: acquisition and tracking. In an acquisition mode, a memory arrangement comprising two circulating shift registers circulates samples of a received signal for correlation with a locally generated version of a GPS code. In a tracking mode, the sampled signal is provided direct to the correlators. The same correlators are thereby used to increase acquisition speed.

  Recently Added Patents
Display systems with touch screens
Polypeptides and immunizing compositions containing gram positive polypeptides and methods of use
LED package chip classification system
Nucleotide sequence coding for variable regions of .beta. chains of human T lymphocyte receptors, corresponding peptide segments and the diagnostic and therapeutic uses
Structure of pixel electrode
Organic compounds
Efficient location discovery
  Randomly Featured Patents
Melanin enhanced hair coloration
Termination circuits and methods for bused and networked devices
Underground valve box
Secondary air supply system for an exhaust port of an engine
Cargo handling system
Holding members for implantable cardiac stimulation devices
Method and associated device for sensing the air/fuel ratio of an internal combustion engine
Amino-alcohol derivatives
Media sensors for a printer
Cable end connector assembly