Patent · US Active

Device for DFT calculation

US8566380B2 · kind B2 · utility

0Cited by
6References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 2008
Grant dateOct 22, 2013
Priority date—
Expiry dateMay 23, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S19/37
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A device to perform DFT calculations, for example in a GNSS receiver, including two banks of multipliers by constant integer value, the values representing real and imaginary part of twiddle factors in the DFT. A control unit selectively routes the data through the appropriate multipliers to obtain the desired DFT terms. Unused multipliers are tied to constant input values, in order to minimize dynamic power.

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