Carrier less modulator using saw filters

Details Carrier less modulator using saw filters Carrier less modulator using saw filters

2007-03-09

2011-12-20

Singh, Hirdepal (Department: 2611)

Pulse or digital communications

Transmitters

C375S257000, C375S259000, C375S285000, C375S299000, C375S316000, C455S091000, C455S101000, C370S205000

Reexamination Certificate

active

08081707

ABSTRACT:
A system and method of carrier less modulation is described in this disclosure that uses SAW filters as a modulator in addition to their conventional use as filters for band limiting an UWB system. This system and method is primarily designed to be used with any integer cycle, ultra-wide band or impulse type modulation and more particularly is designed to work with a method of modulation named xMax. This technique exploits the impulse response of the SAW filter producing a carrier less impulse radio system with limited bandwidth, low average power, but high peak power.

REFERENCES:
patent: 5812598 (1998-09-01), Sharma et al.
patent: 6505032 (2003-01-01), McCorkle et al.
patent: 6541893 (2003-04-01), Zhu et al.
patent: 6788957 (2004-09-01), Recouly et al.
patent: 6970496 (2005-11-01), Ben-Bassat et al.
patent: 7443337 (2008-10-01), Jaklitsch
patent: 2002/0154620 (2002-10-01), Azenkot et al.
patent: 2003/0026351 (2003-02-01), Hunton
patent: 2004/0151237 (2004-08-01), Ferry et al.

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