Telecommunications – Receiver or analog modulated signal frequency converter – With particular receiver circuit
Reexamination Certificate
2006-12-26
2006-12-26
Anderson, Matthew (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
With particular receiver circuit
C455S334000, C455S296000, C455S317000, C455S226100, C455S226200
Reexamination Certificate
active
07155196
ABSTRACT:
The present invention is a method and apparatus for optimizing performance of a transceiver selecting and processing an intermediate frequency free of significant interference, such as noise. A frequency band may be scanned to detect interference upon which an intermediate frequency free of significant interference may be selected. This may enhance performance of the receiver by reducing the effects of noise. Additionally, perrformance may be further optimized by adjusting the passband of the filter such that the center of the passband matches the selected intermediate frequency. This may provide stability as centering of the passband may account for process, voltage and temperature variations and errors. Further, performance may be enhanced by ensuring desirable signal attributes are passed through the filter.
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patent: 6836105 (2004-12-01), Zou
Anderson Matthew
Cypress Semiconductor Corp.
Dao Minh
Marger Johnson & McCollom PC
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