Method and apparatus for spread spectrum radio signal...

Details Method and apparatus for spread spectrum radio signal... Method and apparatus for spread spectrum radio signal...

2006-08-22

2006-08-22

Ha, Dac (Department: 2634)

Pulse or digital communications

Receivers

Angle modulation

C375S340000, C375S140000, C455S258000

Reexamination Certificate

active

07095804

ABSTRACT:
Systems and methods to recover spread spectrum radio signals are provided. A representative system includes an antenna, a radio frequency subsystem, a baseband subsystem, and at least one peripheral device. The radio frequency subsystem is coupled to the antenna and includes a high frequency oscillator and a low frequency oscillator. The baseband subsystem is coupled to the radio frequency subsystem and includes a free running counter coupled to the high frequency oscillator and the low frequency oscillator and a multipath signal recovery circuit coupled to the free running counter. The multipath signal recovery circuit includes a plurality of signal path processors to recover clock information from a plurality of incoming signals.The peripheral device is coupled to the baseband subsystem to receive and supply signals to the baseband receiver.

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patent: 5815819 (1998-09-01), Ohta et al.
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patent: 6085104 (2000-07-01), Kowalski et al.
patent: 6088602 (2000-07-01), Banister
patent: 6564046 (2003-05-01), Chateau

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