Cancellation system and method for a wireless positioning...

Details Cancellation system and method for a wireless positioning... Cancellation system and method for a wireless positioning...

2011-07-19

2011-07-19

Eng, George (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S456100, C455S456500, C455S063100, C455S067130, C455S456600, C342S357200, C342S357250, C342S357340

Reexamination Certificate

active

07983666

ABSTRACT:
A cancellation system that delays the received signals and cancels less than all the received signals from the delayed version of the received signals and a demodulator and despreader unit produces a demodulated and de-spreader and remodulator unit produces a remodulated and respread signal from the demodulated and despread signal with a combiner that produces a combined signal from the delayed version of the received signals and the remodulated and respread signal to identify a low power signal.

REFERENCES:
patent: 5381447 (1995-01-01), Ayerst et al.
patent: 5644592 (1997-07-01), Divsalar et al.
patent: 5812087 (1998-09-01), Krasner
patent: 6121923 (2000-09-01), King
patent: 6240099 (2001-05-01), Lim et al.

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