Patent · US Expired

Method and apparatus for producing spread-coded signals

US6639937B2 · kind B2 · utility

12Cited by
10References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 1, 2002
Grant dateOct 28, 2003
Priority date
Expiry dateApr 1, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B1/707
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Transmission data that will be transmitted is coded and thus band-spread using a spread code. The band-spread transmission data is also coded using a scrambling code. The scrambling process is followed by pulse shaping, frequency correction, and DC offset and/or amplitude compensation for the band-spread and scrambled transmission data.

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