Receiver detecting signals based on spectrum characteristic...

Details Receiver detecting signals based on spectrum characteristic... Receiver detecting signals based on spectrum characteristic...

2007-08-28

2010-12-28

Tse, Young T. (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C370S210000

Reexamination Certificate

active

07860177

ABSTRACT:
A receiver for receiving a target signal complying with a specific communication specification comprising a specific spectrum characteristic includes a detecting module for detecting a packet of an input signal, a transforming unit for transforming the packet from a time domain to a frequency domain to derive a spectrum characteristic of the input signal, and a determining unit for determining whether the input signal is the target signal according to the spectrum characteristic of the input signal. Therefore, the proposed receiver is able to reduce packet miss rate and false alarm rate while robust to a severe channel condition, and achieve fast and accurate signal quality detection.

REFERENCES:
patent: 6177951 (2001-01-01), Ghosh
patent: 6707798 (2004-03-01), Klein
patent: 6934340 (2005-08-01), Dollard
patent: 2003/0163044 (2003-08-01), Heimdal et al.
patent: 2004/0190648 (2004-09-01), Anim-Appiah et al.
patent: 2005/0220175 (2005-10-01), Zhou
patent: 2006/0104198 (2006-05-01), Takano
patent: 2008/0310525 (2008-12-01), Lin et al.
IEEE Standard 802.11a-1999.
IEEE Standard 802.11b-1999.

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