Telecommunications – Receiver or analog modulated signal frequency converter – Measuring or testing of receiver
Reexamination Certificate
2011-04-05
2011-04-05
Tran, Pablo N (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Measuring or testing of receiver
C455S063200, C455S161300, C455S224000, C455S226300
Reexamination Certificate
active
07920839
ABSTRACT:
A system for detecting a broadcast channel in a radio receiver includes a receive signal strength indicator (RSSI) element configured to develop an RSSI signal that is representative of a power in a desired channel, a switchable bandwidth channel select filter having a power detector configured to compare a power output of the desired channel and at least one channel adjacent to the desired channel to develop a signal to adjacent channel power ratio (SACPR) signal that is representative of the noise in the desired channel, and a seek element configured to determine whether the RSSI signal is greater than a predetermined RSSI threshold and configured to determine whether the SACPR signal is greater than a predetermined SACPR threshold.
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DeHoedt Russell W.
Rohret Gary L.
Shi Ying
Young James P.
Skyworks Solutions Inc.
Smith Frohwein Tempel Greenlee Blaha LLC
Tempel Michael J.
Tran Pablo N
LandOfFree
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