Signal detector

Details Signal detector Signal detector

2005-08-16

2005-08-16

Corrielus, Jean B. (Department: 2637)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C370S526000

Reexamination Certificate

active

06931076

ABSTRACT:
A method, apparatus, and system for detecting a tone. In some embodiments, a signal is communicated by applying a first quantity of samples per period and a second quantity of samples per period. The samples may then be translated into information. For example, the first and second quantity of samples may be translated into information and identified. According to some embodiments, a signal communicates information at at least two different frequencies simultaneously to determine a common carrier for transmitting and receiving nodes.

REFERENCES:
patent: 4306308 (1981-12-01), Nossen
patent: 4715029 (1987-12-01), Crookshanks
patent: 5598441 (1997-01-01), Kroeger et al.
patent: 5910906 (1999-06-01), Schmitt
patent: 6074086 (2000-06-01), Yonge, III
patent: 6269132 (2001-07-01), Yonge, III
patent: 6504870 (2003-01-01), Srinivasan

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