Cordless phone detection in 2.4 GHz for interference mitigation

Details Cordless phone detection in 2.4 GHz for interference mitigation Cordless phone detection in 2.4 GHz for interference mitigation

2011-04-26

2011-04-26

Edouard, Patrick N (Department: 2617)

Telecommunications

Transmitter

Measuring, testing, or monitoring of transmitter

C455S115300, C455S115400, C455S226100

Reexamination Certificate

active

07933566

ABSTRACT:
A system and method for determining whether sampled spectrum data comes from a cordless phone is disclosed. The system includes a device to detect the sampled spectrum data and an algorithm to analyze the sampled spectrum data. The algorithm separates the narrowband components from the wideband components of the sampled spectrum data, then classifies the sampled spectrum data based on the bandwidth, frame length, and inter-frame time, as either being an analog or digital FM phone, a DSSS phone, a WDCT phone, or a non-cordless phone, such as a Bluetooth device. The algorithm may be used for interference mitigation.

REFERENCES:
patent: 2002/0105930 (2002-08-01), Sydon et al.
patent: 2003/0224741 (2003-12-01), Sugar et al.
patent: 2004/0028003 (2004-02-01), Diener et al.
Aiake “Power Spectrum Estimation through Autoregressive Model Fitting,” Ann. Inst. Statist. Math., vol. 21, pp. 407-419, 1969.

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