Patent · US Active

Methods and systems for transmission of multiple modulated signals over wireless networks

US7555054B2 · kind B2 · utility

68Cited by
188References
25Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 22, 2008
Grant dateJun 30, 2009
Priority date
Expiry dateMay 22, 2028

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2025/03477
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Receiver network for receiving a first filtered modulated transmitted signal in a first RF band and a second modulated transmitted signal in a second RF band and for providing received signals to one or more demodulators. A demodulator and baseband filter for demodulating and filtering the first filtered modulated received signal and for providing filtered demodulated baseband signal by a baseband filter mis-matched to the filter of the first filtered modulated transmitted signal and demodulating the second modulated signal providing a demodulated baseband signal and a selector for selecting either the first or the second demodulated baseband signal. A receiver and demodulation system receiving a first TDMA modulated signal having a first bit rate and for receiving a second modulated signal having a second bit rate and for providing the received signals to a one or more demodulators and for providing cross-correlated demodulated in-phase and quadrature-phase baseband signals and demodulating the second bit rate modulated signal and providing a demodulated baseband signal.

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