Patent · US Active

Signal processor and signal processing method

US9151846B2 · kind B2 · utility

0Cited by
3References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 14, 2006
Grant dateOct 6, 2015
Priority date—
Expiry dateAug 29, 2031

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T29/49002
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Signal processor for a GNSS receiver, in particular a GPS receiver, characterized by the use of un-refreshed volatile dynamic memory as a storage element for real-time digital data. The invention takes advantage from the fact that many memory units are used to store real-time data and are constantly overwritten at a rate which can conveniently be shorter than a mean retention time of a DRAM cell. Moreover several memories are used to store noise-dominated data which are then statistically analyzed in a way that can tolerate a small rate of retention errors. Thus the automatic refresh circuitry can be disposed of without adverse effect.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.